CN105533986A - Bone conduction hair clasp - Google Patents

Abstract

The invention relates to a bone conduction hair clasp. The bone conduction hair clasp comprises flexible and ductile horseshoe-shaped hair clasp body, a sound absorption cotton layer, a fabric wrapping layer, a decorating layer, at least two bone conduction oscillators, at least two sound leak prevention buffers, at least two sponge covers, at least one air conduction microphone, at least one bone conduction microphone, a circuit mainboard, a rechargeable battery and a one-to-multiple sound frequency power divider. The one-to-multiple sound frequency power divider is connected with the circuit mainboard on the outer side of the hair clasp body and the bone conduction oscillators on the inner side of the hair clasp body, and the bone conduction oscillators are connected with a port of a bone conduction oscillator driver on the circuit mainboard through the one-to-multiple sound frequency power divider. The bone conduction hair clasp achieves functional diversification, can be implemented in a wireless connection or wired connection mode, solves the problems of sound leak and ambient noise interference, achieves high-quality bone conduction sound frequency, simplifies circuit design, lowers cost and energy consumption, has the intelligent personal assistant function and achieves friendlier interaction with a user.

Description

A kind of osteoacusis hair band

Technical field

The present invention relates to a kind of osteoacusis hair band, belong to Intelligent hardware wearable device technical field.

Background technology

In prior art, people adopt hair band to fix hair usually, and maintain hair style, hair band traditional in addition also has the function of beautiful decoration.But this traditional hair band function singleness, does not possess and listens to the music, plays the intelligentized function such as phone, individual voice assistant.

In order to make hair band possess the intelligentized functions such as interactive voice, need to introduce sound conduction technology.Usually, our most of sound of hearing by sound wave by air transmitted.The sound wave of air transmitted arrives cochlea, inner ear and by the perception of auditory nerve institute by external ear, middle ear.In addition, sound wave can also be converted into the mechanical oscillation of different frequency, transmits sound wave by the skull of people, temporal bone, osseous labyrinth, the transmission of inner ear lymph liquid, spiral organ, auditory nerve, auditory center, Here it is bone conduction technology.Air transmitted sound wave is referred to and to be transmitted to inner ear by external ear, middle ear; Osteoacusis is then vibrate skull bone or temporal bone, is not directly transferred in the middle of inner ear by external ear and middle ear.Relative to traditional air transmitted mode being produced sound wave by Loudspeaker diaphragm, osteoacusis eliminates the step that many sound waves transmit, and can realize sound-reducing clearly in a noisy environment, and sound wave also can not have influence on other people because of spreading in atmosphere.The electro-acoustic element of bone conduction technology is divided into bone conduction vibrator and bone-conduction microphone.Bone conduction vibrator is used for called, calledly namely listens to sound.Air transmitted loudspeaker of the prior art is that sound wave reaches auditory nerve transform electrical signals.Bone conduction vibrator is then that the vibration signal of transform electrical signals is directly reached auditory nerve by bone.Both differences are the Transfer Medium differences of sound wave (vibration signal).Bone-conduction microphone technology is used for sending words, send words namely to collect sound.Conductance send words to be that sound wave reaches microphone by air, and bone-conduction microphone words are then directly by bone transmitting vibrations signal.By contrast, bone conduction technology has the following advantages:

1. make the ambient sound around the free perception of ear, therefore can open ears, improve the ability of user awareness environment and the security of use.

2. bone conduction device is unpleasant to the ear, and does not injure eardrum, avoids impaired hearing, can improve comfort and security.

3. bone-conduction microphone collects user speech by vibration, can realize the noise reduction of voice communication, mask ambient noise completely.

When using traditional air transmitted earphone, ambient noise can hinder user called and send words usually, because ambient noise and voice are mutually obscured in air transmitted process, all can be conducted to auditory nerve.When user carries out complex environment activity, such as, when running body-building, steering vehicle, need pleasant due to air transmitted earphone or cover whole user's duct, user is difficult to the sound perceiving surrounding environment, such as: near the automobile that crosses, other people call etc.This usually to make troubles even potential safety hazard to user.In addition, the pleasant air transmitted earphone of Long-Time Service can damage the hearing of user, and serious can causing becomes deaf.

But bone conduction technology of the prior art also has several shortcoming below:

1. the quality of bond-conduction sound is relevant with the position contacting bone.

2. bone and tissue can produce amplitude fading and the time delay with frequency selectivity to vibration signal, and the audio signal in high-fidelity or broadband is difficult to by bone conduction to auditory nerve.

3. utilize bone conduction technology called or send words, bone conduction device must be close to bone, and sound wave directly reaches auditory nerve by bone.Wearing mode determines that the compressing of bone conduction device height must be conducted by bone conduction device on bone, once absent-mindedness will affect the quality of audio delivery.The impact that the wearing mode of this height compressing bone makes user's comfort in use, skin health etc. be subject in various degree.

4., because the characteristic of solid conduction vibration, prior art does not all really solve the problem that osteoacusis leaks sound.This is because prior art is all compensate with the skeleton of frequency dependence and tissue attenuation vibration signal by large volume, large vibration signal, but it is serious that this method can cause leaking sound, or need larger power, bone conduction vibrator volume, weight increase greatly, cause Whole Equipment too heavy.

Summary of the invention

The present invention, in order to solve above-mentioned deficiency of the prior art, provides a kind of novel osteoacusis hair band.First this osteoacusis hair band is a hair decorations, possesses the basic function of decoration and fixing hair.On this basis, in conjunction with osteoacusis and Internet technology, for user provides the information communication of multiple uniqueness to experience.

Osteoacusis hair band of the present invention comprises: flexible ductile Horseshoe hair band body, acoustical cotton layer, cloth art integument, decorative layer, at least 2 bone conduction vibrator, at least 2 leakproof sound buffers, at least 2 sponges covers, at least 1 air conduction microphone, at least 1 bone-conduction microphone, circuit main board, rechargeable battery and 1 one point of Multi-audio-frequency power splitter, described acoustical cotton layer is fixedly installed on the outside of hair band body, in hair band body and acoustical cotton layer are wrapped in by described cloth art integument and decorative layer; At least 2 bone conduction vibrator are arranged on the end inside hair band body; Leakproof sound buffer is arranged on the binding site of the contact between bone conduction vibrator and hair band body; Sponges cover parcel bone conduction vibrator, and with user's skin contact; Air conduction microphone is integrated to be arranged on circuit main board; Bone-conduction microphone is arranged on the inner side of hair band body; Circuit main board is arranged on the outside of hair band body, and its thickness is identical with acoustical cotton, and is parallelly embedded between two pieces of acoustical cotton layers, and is fixed on the outside of hair band body; Also integratedly on described circuit main board be provided with Digital Signal Processing and wireless transmit/receive units, antenna, bone conduction vibrator driver, at least 1 group motion sensor, at least 1 group health sensor and 1 controls button; Rechargeable battery is fixed on second half outside of hair band body, relative with circuit main board, can maintain the balance of hair band weight, and rechargeable battery is connected on circuit main board; One point of Multi-audio-frequency power splitter connects the circuit main board in outside and the bone conduction vibrator of inner side of hair band body, is connected by the port of bone conduction vibrator with the bone conduction vibrator driver on circuit main board by one point of Multi-audio-frequency power splitter.Both can support wired connection with the connected mode of external equipment, also can support wireless connections.

Described motion sensor comprises pedometer, gyroscope and/or barometer; Health sensor comprises heart rate sensor, blood oxygen transducer and/or thermometer; Digital Signal Processing and wireless transmit/receive units comprise the transceiver of wireless connections, antenna, microprocessor, audio codec, audio drive amplifiers, baseband digital signal processor and memory cell.

Described hair band body comprises main body and two extending bodies, and two extending bodies are connected respectively to the two ends of main body according to predetermined curvature, and two extending bodies allow its respective length of adjustment.

2 bone conduction vibrator are had at least to lay respectively at the two ends of hair band body, 1 bone-conduction microphone is had at least to be positioned at centre position inside hair band body, when user wears osteoacusis hair band time, 2 bone conduction vibrator are close to the temporal bone part on rear side of ear respectively, and bone-conduction microphone is positioned at the position on skull top.

Described bone conduction vibrator comprises metal shell, the oscillator element be connected with metal shell, and the side of metal shell is provided with audio input terminal, and oscillator element is connected by audio wire with between audio input terminal; The below of metal shell is provided with outside semimetal layer and outside semi-solid layer; Outer semimetal layer and outside semi-solid layer form outside compound and only to shake layer, and only the shake below of layer of outside compound is provided with acoustical cotton layer.

The external diameter of described oscillator element is 13mm, and the vertical height from the outermost edges of oscillator element to outside semimetal layer is 10mm, and the external diameter of metal shell 134 is 18mm.

Described acoustical cotton layer is rubber and plastic material, adopts the design of bubble closed pore; The material of described semi-solid layer is configured to rubber, comprises butyl rubber, natural rubber, butadiene-styrene rubber, butadiene rubber, neoprene, isoprene rubber, nitrile rubber, EP rubbers or hydrogenation nitrile rubber; Described semimetal layer is aluminium foil or Copper Foil.

Described bone-conduction microphone and air conduction microphone alternation are carried out sending words, judge whether bone-conduction microphone should be activated by the input power threshold value of a predefined bone conduction vibrator, when the input power of bone conduction vibrator exceedes predefined threshold value, forbidding bone-conduction microphone send talking path, activates air conduction microphone simultaneously and carries out sending words; When the input power of bone conduction vibrator is lower than predefined threshold value, activates bone-conduction microphone and carry out sending words, close air conduction microphone simultaneously and send talking path.

Multiple bone-conduction microphone is separately positioned on different positions, multiple bone conduction vibrator is separately positioned on different positions, is provided the multipath diversity of receiver side (sending words) and emitting side (called) by multiple bone-conduction microphone and multiple bone conduction vibrator simultaneously.

1 described control button can complete and play phone, play music and auto heterodyne camera function, after hair band and Bluetooth mobile equipment match, when there being phone to call in, is answer the call by once controlling button; After end of conversation, be hang up by once controlling button again; When being inconvenient to answer the call, length can be hung up the telephone by control button for 2 seconds; Under open state, controlling button by twice is redial fast; Start duration, by controlling button 5 second, is the operation of shutdown; Music is controlled, controls by 1 time broadcasting or the time-out that button is music; Use the camera interface needing to open the mobile device that bluetooth connects during long-range Self-timer, length can realize autodyning by the control button of hair band for 1 second.

Described osteoacusis hair band possesses intelligent personal assistants function, the heart rate of user, blood oxygen and body temperature temperature is responded to by described health sensor, if find that sensing data exceedes predetermined threshold value, the sound of intelligent personal assistants will be triggered, and the health parameters of reminding user exceeds threshold value; Described osteoacusis hair band can also by the inspection data remote transmission of health sensor to Cloud Server, calculated by Cloud Server and retrieve Health database to judge the data obtained and whether exceed health or safe range, finally the result of calculating and conclusion are returned to hair band by wireless.

Described osteoacusis hair band can word frequency is higher in the statement that sent by bone-conduction microphone and air conduction microphone of recording user statement, upload to Cloud Server and carry out calculating retrieval, Cloud Server calculates statement and extracts high word frequency keyword, the historical data base of comparison nearest a period of time, search key, judge whether the high word frequency keyword extracted mates with the high word frequency keyword in database, if the high word frequency keyword extracted does not retrieve in a database, then by the new keywords that do not retrieve stored in high word frequency keyword database; If coupling, then trigger the intelligent personal assistants engine. retrieves internet on Cloud Server, and calculate by convolutional neural networks algorithm the event that this keyword can produce, the suggestion of event the highest for priority, answer, next step problem are returned to hair band, by voice broadcast to user.

The present invention also proposes a kind of active wired osteoacusis hair band, this wired osteoacusis hair band comprises hair band body, acoustical cotton layer, cloth art integument, decorative layer, bone conduction vibrator, sponges cover, leak sound buffer, bone-conduction microphone, osteoacusis drive-by-wire device mainboard, USBOTG power supply interface, 3.5mm COBBAIF and USBOTG converter, inside hair band body, two bone conduction vibrator are fixed at two ends, two bone conduction vibrator are connected to osteoacusis drive-by-wire device mainboard by one point of Multi-audio-frequency power splitter, this osteoacusis drive-by-wire device mainboard is provided with an osteoacusis driving amplifier, a volume control button and at least 1 gas conduction microphone, the audio input port of osteoacusis drive-by-wire device mainboard connects a tone frequency channel wire, the 3.5mm COBBAIF of tone frequency channel wire end is a general 3.5mm audio connector male, the power supply port of drive-by-wire device mainboard connects a USB line, USB line end is a general USBType-A type Male head connector.

Compared with prior art, the beneficial effect of osteoacusis hair band of the present invention is:

1, the functional diversities of osteoacusis hair band is achieved, maintain the aesthstic attractive force of traditional cloth art hair band, the feature such as comfortable, healthy, add that remote control is autodyned, anti-lost, Environmental Health monitoring, intelligent personal voice assistant, wireless voice telephony, the function such as to listen to the music.

2, solve the leakage mail topic of bone conduction technology, effectively protect user's individual privacy in use.

3, solving bone conduction technology is sending in words process, the problem of ambient noise interference.The present invention can offset ambient noise, ensures in call, only has pure user speech.

4, achieve the high-quality bone conduction audio-frequency that prior art cannot realize, solve skeleton and the attenuation of tissue to vibration signal.

5, simplify the complex circuit designs degree of osteoacusis hair band, reduce cost, reduce power consumption.

6, solve user that existing plastics osteoacusis hair band causes wear uncomfortable, easily cause allergic problem, cloth art design is combined with osteoacusis hair band by specific structure by the present invention.

7, simplify the input operation of osteoacusis hair band, achieve the method that a unique button just can complete all operations, make that osteoacusis hair band and user's is mutual more friendly.

8, the present invention both can be implemented by the mode of wireless connections, also can be connected by wired mode.By 3.5mm audio connector and USBType-A type connector, can general connection existing equipment, without the need to powered battery, round-the-clock use can be realized.Wired connection mode is the important supplement of radio connection, meets the needs of different user for different application scene.

Accompanying drawing explanation

Fig. 1-3 is surface structure schematic diagrames of the wireless osteoacusis hair band in the present invention.

Fig. 4 is the structural representation of one point of Multi-audio-frequency power splitter of the present invention.

Fig. 5 is that the present invention adopts air transmitted and the bone-conduction microphone counteracting equipment that combines to send the workflow diagram of the ambient noise in words process.

Fig. 6 activates air conduction microphone to send talking path and bone-conduction microphone to send the flow chart of talking path in the present invention.

Fig. 7 is the principle schematic that in the present invention, multipath diversity vibration signal technology carries out sending words.

Fig. 8 is that in the present invention, multipath diversity vibration signal technology carries out called principle schematic.

Fig. 9 is that the relative amplitude of the bone conduction device conduction vibration signal of two diverse locations in multipath diversity in the present invention is along with the variation diagram apart from acous distance or conduction time.

Figure 10 be in the present invention normalized osteoacusis path loss relative to the curve synoptic diagram of signal to noise ratio.

Figure 11 a is that in prior art, osteoacusis vibration signal single-pathway send words and called principle schematic.

Figure 11 b is the principle schematic of multipath diversity osteoacusis in the present invention.

Figure 12 is the principle schematic being configured to multipath diversity in the present invention by 2 bone conduction vibrator.

Figure 13 is that the compound that has in the present invention is only shaken the structural representation of bone conduction vibrator of layer.

Figure 14 is the fusion identifying technology flow chart that present invention incorporates sensor real time data and the detection of keyword word frequency.

Figure 15 is the structural representation of active wired osteoacusis hair band in the present invention.

Detailed description of the invention

Be clearly and completely described the technical scheme in the application below in conjunction with accompanying drawing, obviously, described embodiment is only a part of embodiment of the application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the application's protection.

As Figure 1-3, osteoacusis hair band of the present invention comprises: flexible ductile Horseshoe hair band body 100, acoustical cotton layer 1, cloth art integument, decorative layer, at least 2 bone conduction vibrator 2, at least 2 leakproof sound buffers 3, at least 2 sponges covers 4, at least 1 air conduction microphone (not shown), at least 1 bone-conduction microphone 5, circuit main board 6, rechargeable battery 7 and 1 one point Multi-audio-frequency power splitter (not shown), described acoustical cotton layer 1 is fixedly installed on the outside 10 of hair band body 100, in hair band body 100 and acoustical cotton layer 1 are wrapped in by described cloth art integument and decorative layer, at least 2 bone conduction vibrator 2 are arranged on the end of hair band body 100, leakproof sound buffer 3 is arranged on the binding site that bone conduction vibrator 2 contacts with hair band body 100, sponges cover 4 is arranged on the top of bone conduction vibrator 2, air conduction microphone is integrated to be arranged on circuit main board 6, bone-conduction microphone is arranged on the inner side 20 of hair band body 100, circuit main board 6 is arranged between the outside 10 of hair band body 100 and acoustical cotton layer 1, and is fixed on the outside of hair band body 100, also integratedly on described circuit main board 6 be provided with Digital Signal Processing and wireless transmit/receive units, antenna, 1 bone conduction vibrator driver, at least 1 group motion sensor, at least 1 group health sensor and 1 controls button, rechargeable battery 7 is fixed on the outside of hair band body 100, and rechargeable battery is connected on circuit main board, one point of Multi-audio-frequency power splitter connects the circuit main board 6 in outside and the bone conduction vibrator 2 at two ends, inner side of hair band body 100, is connected by the port of bone conduction vibrator with the bone conduction vibrator driver on circuit main board by one point of Multi-audio-frequency power splitter.

Described motion sensor comprises pedometer, gyroscope and/or barometer; Health sensor comprises heart rate sensor, blood oxygen transducer and/or clinical thermometer; Digital Signal Processing and wireless transmit/receive units comprise microprocessor, audio codec and wireless connections module.

Described hair band body 100 comprises main body and two extending bodies, 8, two extending bodies are connected respectively to main body two ends according to predetermined curvature, and two extending bodies allow its respective length of adjustment.

Particularly, hair band body adopts flexible material to make, and usually adopts nonhazardous, does not cause allergic Merlon (PC) material.Hair band body has a curvature, is attached to hair retaining part.Hair band body comprises main body, and two extending bodies are connected respectively to the two ends of main body according to certain curvature, and two extension bodies are attached to hair retaining part respectively and allow to adjust its length separately.The object of this design is used to the skull profile adapting to different user, to ensure that bone conduction vibrator can contact skin area with related sensor further, instead of is covered with dense hair district.The coverage of hair will reduce performance and the precision of osteoacusis and health sensor greatly.Therefore, by adjusting the extension body of hair band flexibly, can realize locking it in most suitable contact position and being used for ensureing suitable functional.

Permanent circuit mainboard and rechargeable battery successively outside hair band body, both are distributed in the balance that hair band body both sides keep weight.Bone conduction vibrator and bone-conduction microphone is fixed wtih equably inside hair band body; Have at least 2 bone conduction vibrator to lay respectively at hair band body two ends, be close to the temporal bone part on rear side of ear, because temporal bone is best osteoacusis position.Wherein, be connected by leakproof sound buffer between bone conduction vibrator with hair band body.Hair band body needs and leakproof sound buffer close adhesion, is used for preventing bone conduction vibrator from hair band body is passed in vibration, causes its vibration to produce and leaks sound.The direction of bone conduction vibrator contact skull needs to be wrapped up by sponges cover, like this when in bone conduction vibrator and skin contact process, sponges cover can be positioned at and both comfortablely directly vibration can passed to skull between the two, again can by the high-frequency audio part of some oscillators of filtering, the sound of osteoacusis is made to sound softer, not dry and astringent ear-piercing.1 bone-conduction microphone is had at least to need to be positioned at skull apical position, the centre position namely inside hair band body.Because skull top skin is thinner, the sound that skull transmission comes can well be collected.

Digital Signal Processing and wireless transmit/receive units comprise wireless transceiver (TRX), such as, realize wireless connections by technology such as bluetooth, WLAN (WLAN), purple honeybee (Zigbee) standards, at least one antenna, audio frequency process comprises encoder (codec), audio drive amplifiers, to drive described bone conduction vibrator, baseband digital signal processor (DSP), for the performance strengthened, such as noise is eliminated, characteristics of signals and quality control etc., microprocessor unit (MCU) is as master control, for calculating and controlling its peripheral module, memory cell comprises read-only storage (ROM) and random access memory (RAM), rechargeable battery is connected to circuit main board, bone conduction vibrator realizes being connected via elasticity audio frequency one point of Multi-audio-frequency power splitter with described circuit main board.

Fig. 4 is the typical structural representation of one of one point of Multi-audio-frequency power splitter of the present invention.One point of Multi-audio-frequency power splitter is for reducing circuit complexity and manufacturing cost.As shown in Figure 4, one point of Multi-audio-frequency power splitter, by being connected to the port of insertion terminal with the bone conduction vibrator driver on circuit main board, is divided into the positive negative signal that MCVF multichannel voice frequency wire rod exports after the welding portion that heat-shrinkable T bush is closed; The multiple bone conduction vibrator of metal-cored connection of audio frequency wire rod.Fig. 4 schematically shows the situation of connection two bone conduction vibrator (in Fig. 4 bone conduction vibrator 1 and bone conduction vibrator 2), but those skilled in the art can understand completely, can connect the bone conduction vibrator more than two here.

The present invention, in order to solve ambient noise interference problem, proposes noise cancellation technique.The present invention has the bone conduction audio-frequency element of several types to be arranged.Wherein bone conduction vibrator to be arranged on inside hair band body and the skin that can touch outside the temporal bone of user, and non-hair covers district's part.Temporal bone can direct conduction vibration to the cochlea nerve of user, allow user hear sound by conduct vibrations.The size of hair band body of the present invention answers appropriate design, ensures to provide sufficiently high oppressive force for the hair band bulk material that contacts with temporal bone external skin and profile design.At least 2 bone conduction vibrator are separately positioned on the temporal bone of skull both sides.Because bone conduction vibrator and bone-conduction microphone cannot not obscured, so at least 1 air conduction microphone is used to the present invention by vibration passing sound at one time; At least 1 air conduction microphone is placed on circuit main board, is achieved the function of directive pickup device by microphone array design; Sound can be collected in high sensitivity, especially the direction in oral cavity on fixed-direction.In addition, have at least a bone-conduction microphone to be also arranged on inside hair band bodies top, it can transmit sound with the outer thinner skin contact of skull.Like this, when bone conduction vibrator is idle, sound can be collected by bone-conduction microphone, realize the object of noise reduction.Because the principle of its vibration passing sound, ambient noise can not disturb bone-conduction microphone.In addition, when bone conduction vibrator works, bone-conduction microphone can realize a kind ofly detecting and offsetting the function of environmental noise by auxiliary air conduction microphone, as shown in Figure 5, present system detects that bone conduction vibrator just in working order, simultaneously bone-conduction microphone and empty air conduction microphone are all movable, but they directly do not export the signal that detects to wireless connections module.The voice of air conduction microphone simultaneously acquisition environment noise and user, and bone-conduction microphone can only detect the voice of the user produced by vibration due to self character.Then, use suitable correlation, and deduct the detection signal of bone-conduction microphone with the detection signal of the air conduction microphone before adjustment, ambient noise signal just can be extracted by digital signal processing method.Then, the ambient noise be extracted can be carried out synchronous with conductance microphone signal, carries out subtraction operation between them, and the ambient noise that such air conduction microphone is collected just can be cancelled completely.Therefore, in the present invention, no matter whether bone conduction vibrator works, and air conduction microphone or the sound collected by bone-conduction microphone can reach the object of elimination to ambient noise.This is also the final purpose that the present invention introduces two kinds of microphone type.

Specifically, bone-conduction microphone of the present invention only detects user voice signal A, and air conduction microphone detects the mixed signal C of user voice signal A and ambient noise signal B, i.e. C=A+B; Judge whether the input power of bone conduction vibrator exceedes threshold value (threshold value here refers to and to be pre-entered by user or the threshold value of predefined input power), if not, the signal then detected by bone-conduction microphone can obtain pure user voice signal A, and ambient noise signal B can ignore; If so, then carry out signal correlation computing, normalization amplitude, signal C and signal A is done subtraction and obtains normalized ambient noise signal B, i.e. B=C-A; Time delay is carried out to the mixed signal C that air conduction microphone detects, amplitude adjustment is carried out to normalized ambient noise signal B, the mixed signal C of time delay and normalized ambient noise signal B is done subtraction, obtain pure voice signal A, now ambient noise signal B is eliminated, and air transmitted and the bone-conduction microphone counteracting equipment that combines send the workflow of the ambient noise in words process to terminate.

Wherein a kind of implementation is in the present invention, and bone-conduction microphone and air conduction microphone can alternation carry out sending words.The triggering signal switched depends on the size of the input power of bone conduction vibrator.Judge whether bone-conduction microphone should be activated by the input power threshold value of a predefined bone conduction vibrator.Fig. 6 illustrates the workflow diagram of this process.When bone-conduction microphone detection has an input signal, first can carry out an input power detecting bone conduction vibrator and judge.If input power exceedes predefined threshold value, then mean that this bone conduction vibrator has occupied osteoacusis vibration.Therefore, it can trigger forbidding bone-conduction microphone vibration signal is delivered to wireless communication unit but its be not closed, just send talking path to interrupt, to avoid confusion.And meanwhile, it can activate air conduction microphone and transmit audio signal to wireless communication unit to replace bone-conduction microphone, but in this process, the user speech collected can be normalized by bone-conduction microphone, and the voice collected with normalized air conduction microphone and ambient noise mixed signal are done subtraction and operated, and then obtain the normalized value of ambient noise.Then, the mixture normalization signal that the air conduction microphone of time delay can be collected by another one passage does subtraction again with the environment normalization noise calculating gained, and final acquisition balances out the air transmitted voice of ambient noise, realizes the object of noise reduction.On the other hand, if when the input power of bone conduction vibrator is lower than threshold value, then activate bone-conduction microphone and carry out sending words, transmit audio signal to wireless communication unit by bone-conduction microphone, meanwhile, the talking path of sending of air conduction microphone is closed.Voice communication after such the present invention just can under any circumstance provide ambient noise to eliminate.

This invention also solves the problem of skeleton, tissue attenuation signal.A shortcoming of bone conduction technology is not well solved in the prior art, and vibration signal frequency component that Here it is absorbs to deposit in skull, temporal bone and other people soma and makes the conduction of high quality audio become difficulty in case.Because these skeletons and musculature can to the signal generation decay in various degree of different tonal range, that is bone and the decay of musculature to audio frequency have selective, and therefore different bones and the vibration of tissue will absorb the component of different frequency.Even more noteworthy, the physique that user is different, fat or thin meeting make this situation become more complicated.This makes the audio frequency apparatus of bone conduction technology be difficult to compare favourably with the audio performance of air transmitted audio frequency apparatus.In existing bone conduction technology, the method overcoming this human body attenuation effect is on the propagation path of osteoacusis, provide more signal amplitude surplus, offsets this decay, or by selecting the position of best bone conduction vibrator contact skin to solve.But still occur in the situation lower frequency related audio decay of osteoacusis, the signal propagating into auditory nerve is not balanced, and signal fidelity can worsen.In addition, realize by increasing signal amplitude, bone conduction vibrator can be caused to vibrate surrounding air, and cause secondary air transmitted sound, produce serious leakage sound, this can cause the individual privacy of user to be revealed.This method is usually denounced in the prior art, because user thinks that this so-called bone conduction technology similarly is wear loudspeaker on ear limit, does not have individual privacy to say.And for wide-band vibration signal, be also called high-fidelity vibration signal, the method for this increase signal amplitude, for HD Audio, can make situation become severeer, the generation of too many decay may produce very serious audio distortions.

Therefore, the invention provides a kind of multiplex method of diverse location by bone and tissue, the loss to make up, in equalizing audio transmitting procedure.

Ideally, the process (constant attenuation and frequency) of a sign smooth decay is contemplated to and single regular time postpones owing to vibrating the osteoacusis transfer function that causes.But the vibration transfer function produced under actual conditions but provides the decay of the asymmetric and frequency dependence of amplitude, and the signal of a variable delay response.Therefore the performance identical with traditional air transmitted audio parts to be realized, the present invention adopts multiple osteoacusis electro-acoustic element to carry out the selection diversity of contact position, combines to compensate to absorb by bone and tissue the attenuation effect with frequency selectivity caused with signal strength signal intensity recovery technology.

In osteoacusis process, when signal bandwidth exceedes certain bandwidth threshold, frequency selective attenuation will occur.In order to compensate its impact, the present invention proposes multiple bone conduction device and acts on different positions simultaneously, via the transfer function run in each osteoacusis path must digital signal processor in balanced.This method in ideal conditions, if signal is before being detected by auditory nerve, when the inverse function of each transfer function can be applied on the bone conduction device in each path, the whole audio amplitude response be detected will flatten smooth, and can realize compensate for propagation delay, finally the decay of this vibration signal can be eliminated.Wherein, data signal balancing technique of the present invention can adopt existing several digital equalising technology to realize, and is not limited to certain specific digital equalising technology, selects which kind of balancing technique, can select according to actual conditions as engineering construction.Fig. 7 and Fig. 8 is shown in below principle of the present invention.

As shown in Figure 7 and Figure 8, the present invention constructs a multipath propagation model, and can produce the relation of signal attenuation relative to spread scope.The different amplitude versus frequency that this model can arrive auditory nerve by each road signal calculates differential path loss, thus finds the existence of crest caused by bone and tissue absorb and null value.The present invention can according to detection vibration signal intensity or some other performance indications, such as: distance, tissue to the thickness, the direction of propagation etc. of bone because usually selecting the diverse location of optimum contact skull/temporal bone to place bone-conduction microphone or bone conduction vibrator.By receiving at least 2 different positions or launch vibration signal, can realize compensating the effect of the vibration attenuation that bone and tissue cause.Fig. 7 shows multipath diversity vibration signal technology in the present invention and carries out sending the principle of words, 4 different paths are schematically shown in Fig. 7, be respectively path 1, path 2, path 3 and path 4, by bone-conduction microphone is arranged on different positions, the bone-conduction microphone of diverse location is made to receive vibration signal by different paths, have specific relation between the tissue that these different paths are different from human body, the tissue that Fig. 7 schematically lists comprises nasal passage, nostril, mouth, tooth, tongue, vocal cords, tracheae and oesophagus.Fig. 8 shows multipath diversity vibration signal technology in the present invention and carries out called principle, 4 different paths are schematically shown equally in Fig. 8, be respectively path 1, path 2, path 3 and path 4, by bone conduction vibrator is arranged on different positions, the bone conduction vibrator of diverse location is made to send vibration signal by different paths, between the tissue that these different paths are different from human body, there is specific relation, the tissue that Fig. 8 schematically lists comprises auricle, temporal bone, phonophore, external auditory meatus, eardrum, Eustachian tube, cochlea and auditory nerve.

Fig. 9 illustrates two different bone conduction device positions vibration signal intensity different on the osteoacusis Distance geometry time.

In the present invention, because the placement location of multiple bone conduction device is for most important vibration signal intensity recovery technology, so the placement location selective dependency of bone conduction device is in the quality of vibration signal.The path diversity that multiple bone conduction device conduction vibration is formed for the osteoacusis path of frequency-dependent attenuation impact as shown in Figure 10, which illustrate and can realize increasing substantially of performance by osteoacusis path diversity.If it should be noted that identical osteoacusis performance is by existing techniques in realizing, but must realize by introducing extra very large vibration signal level surplus, directly can cause unacceptable serious leakage audio should and power consumption penalty.Figure 10 shows, the gain that the multipath diversity that the present invention proposes produces compensate in prior art the major part in the surplus of the frequency dependence skeleton needing to compensate and the decay organizing the vibration signal caused, but that is need not introduce extra very large vibration signal level surplus by prior art to compensate, also would not produce serious leak audio should and power consumption penalty.

In the present invention, the bone conduction device of multiple redundancy is placed specific, different positions and contacts with skull or temporal bone skin, with the quality in the vibration signal path of the robustness and carrying audio frequency that improve osteoacusis path.Illustrate compared to prior art in Figure 11 a and Figure 11 b, a specific embodiment of the present invention.In the present invention, required transmitting (bone conduction vibrator) and reception (bone-conduction microphone) side need at least two devices.

As shown in fig. lla, prior art does not provide any robustness for osteoacusis placement location or quality improvement mechanism, and therefore, prior art merely provides basic, a simple osteoacusis path.That is, a single bone-conduction microphone is only set in prior art, vibration signal send words by single-pathway, single bone conduction vibrator is only set simultaneously, vibration signal send words by single-pathway, although schematically illustrate multiple tissue in Figure 11 a, comprise nasal passage, nostril, mouth, tooth, tongue, vocal cords, tracheae, oesophagus, auricle, temporal bone, phonophore, external auditory meatus, eardrum, Eustachian tube, cochlea and auditory nerve, but prior art does not consider the problem of these tissue deamplifications.

But the present invention can provide the multipath diversity of receiver side (bone-conduction microphone) and emitting side (bone conduction vibrator), and provides extra system robustness simultaneously.The present invention carrys out loss and the propagation delay of compensate for amplitude degree by Digital Signal Processing multipath vibration signal, greatly can improve the audio quality of bone conduction technology.The selection of transmit diversity and contact position greatly can improve the performance of bone-conduction microphone.The present invention by multipath diversity, makes bone conduction technology can match in excellence or beauty the prior art of air transmitted audio frequency.As shown in figure lib, the invention provides multiple bone-conduction microphone and be separately positioned on different positions, the embodiment with N number of bone-conduction microphone is schematically illustrated in Figure 11 b, be respectively the bone-conduction microphone RX0 being arranged on position 0, be arranged on the bone-conduction microphone RX1 of position 1 ..., be arranged on the bone-conduction microphone RXN of position N, this N number of bone-conduction microphone forms vibration signal multipath transmitter system, and multiple bone-conduction microphone carries out multipath diversity conduction.Similarly, the present invention also provides multiple bone conduction vibrator and is separately positioned on different positions, the embodiment with M bone conduction vibrator is schematically illustrated in Figure 11 b, be respectively the bone conduction vibrator RX0 ' being arranged on position 0 ', be arranged on the bone conduction vibrator RX1 ' of position 1 ' ..., be arranged on the bone conduction vibrator RXM of position M, this M bone conduction vibrator forms the called mechanism of vibration signal multipath, and multiple bone conduction vibrator carries out multipath diversity conduction.

Multipath vibration signal diversity in the present invention is realized by digital signal processing algorithm.Such as, suppose that two bone conduction vibrator are configured to multipath diversity, as shown in figure 12, digital audio input signal is through data signal finite impulse response (FIR) (FiniteImpulseResponse, FIR) filtering frequency divider is transported to digital to analog converter, by digital to analog converter (DigitaltoAnalogConverter, ADC), signal is transferred to low frequency bone conduction vibrator driver and high frequency bone conduction vibrator driver respectively.Low frequency bone conduction vibrator driver sends low-frequency vibration signal component, and high frequency bone conduction vibrator driver sends high-frequency vibration signal component.Low-frequency vibration signal component s ₀the ad-hoc location 0 optimized is launched by bone conduction vibrator TX0, meanwhile high-frequency vibration signal component s ₁then launched by bone conduction vibrator TX1 on another one position 1.The binaural nerve of user is then as receiver side, left ear auditory nerve RX0 and auris dextra auditory nerve RX1 can be identified as, they are respectively by the transfer function h00 in four possible osteoacusis paths, h01, h10, with h11, the bone conduction vibrator TX0 being fixed on position 0 is received with the signal of the bone conduction vibrator TX1 transmitting being fixed on position 1, so just form an osteoacusis path matrix, be designated H.

In order to vibration signal s that is balanced and extraction emission source TX0 and TX1 ₀and s ₁, must estimate osteoacusis path matrix H.The osteoacusis vibration signal received at the input of each receiver side can be calculated by following formula (1):

r ₀＝h ₀₀s ₀+h ₁₀s ₁

r ₁＝h ₁₀s ₀+h ₁₁s ₁(1)

Wherein, r ₀and r ₁represent the vibration signal that the receiver side of auditory nerve receives respectively.Therefore, the vibration signal obtained at auditory nerve end by osteoacusis path diversity techniques of the present invention can be expressed as

$\left[\begin{array}{c}{r}_0\\ r_1\end{array}\right]=\left[\begin{array}{cc}{h}_{00}& h_{10}\\ h_{01}& h_{11}\end{array}\right]\·\left[\begin{array}{c}{s}_0\\ s_1\end{array}\right]=\[R\]=\[H\]\·\[S\]---\left(2\right)$

Therefore, the inverse function of path transfer function [H] can be applied on transmiting signal source [S] by Digital Signal Processing, namely becomes [H] through the transmiting signal source that the present invention is compensated ^-1[S].It can thus be appreciated that by application the present invention, the vibration signal acquired at auditory nerve is [R] '

[R]'＝[H]·[H] ^-1·[S]＝[S]

From formula above, by the present invention, the auditory nerve being transmitted to receiver side that the vibration signal of emitting side can can't harm, thus realize the audio delivery of high-fidelity.Osteoacusis path diversity for bone-conduction microphone (reception) is identical with the principle of transmitting, just repeats no more at this.

This invention also solves the problem that bone conduction technology leaks sound.In all bone conduction technologies, audio frequency relies on vibration signal to transmit in bone (solid) to realize.As long as the solid that is touched on direction of vibration, sound can be transmitted.So, in osteoacusis hair band design process, because the structure of fixing bone conduction vibrator adopts solid to form, so it also can transmitting vibrations, even drive ambient air to produce secondary vibration, finally cause the phenomenon of Lou sound.So a lot of prior art thinks that leaking sound is the difficult problem that osteoacusis is difficult to avoid and solve.Prior art is devoted to optimize the generation of osteoacusis vibration, the research of control and elimination always., all solid vibrations all can produce sound, if vibration would not have passing to of sound, bone conduction technology cannot realize eliminating vibration completely.Therefore, the inherent characteristic that the present invention is directed to bone conduction vibrator is innovated, and propose a kind of will vibration reducing to minimum method, this only technology of shaking can eliminate the problem that osteoacusis hair band leaks sound completely.The vibration of usual bone conduction vibrator is axial, and the vibration signal on the direction in that is axle center occupies leading, and the vibration on the direction orthogonal with axle center is more weak.So the present invention concentrates, the vibration signal of the noncontact skin side on axis direction is only shaken, realize the effect eliminated and leak sound of only shaking.Because the vibration on non axial is less for the impact of leaking sound, so ignore its impact.

The core of the technology of only shaking in the present invention is combined by metal level and semisolid to eliminate interference vibration (namely causing osteoacusis hair band to leak the vibration of sound).Because some specific semisolid has good performance of only shaking, by it in conjunction with good conduct vibrations metal medium, by coming only to shake to the isolation of bone conduction vibrator.The present invention is carried out damping to the vibration of leakage sound only shaken by only shake layer and acoustical cotton layer of compound.In the present invention, the compound layer that only shakes is highdensity damping rubber layer, and surface attachment aluminium foil is formed, and can superpose the compound layer that only shakes, superposition quantity suppresses the effect that osteoacusis leaks sound to determine to possess the effect of obstruct, absorption of noise according to it.The acoustical cotton layer of one deck rubber and plastic material can also be had outside compound only shakes layer, adopt the design of bubble closed pore, be mainly used in sound-absorbing.Superposition order is: the compound layer that only shakes is close to bone conduction vibrator, and acoustical cotton layer is close to compound and is only shaken layer.

As shown in figure 13, bone conduction vibrator of the present invention comprises metal shell 134, the oscillator element 1311 be connected with metal shell 134, the side of metal shell 134 is provided with audio input terminal 133, is connected between oscillator element 1311 with audio input terminal 133 by audio wire 131; The below of metal shell 134 is provided with outside semimetal layer 135 and outside semi-solid layer 136; Outer semimetal layer 135 and outside semi-solid layer 136 form outside compound and only to shake layer, and only the shake below of layer of outside compound is provided with acoustical cotton layer 1.The external diameter of the oscillator element shown in Figure 13 is 13mm, and be just in time applicable to auricle and close, the vertical height from the outermost edges of oscillator element 1311 to outside semimetal layer 135 is 10mm, and the external diameter of metal shell 134 is 18mm.

The present invention is carried out damping to the vibration of leakage sound only shaken by only shake layer and acoustical cotton layer of compound, and during namely solid vibration, the energy that solid is vibrated is dissipated in damping layer as much as possible.Damping refers to and hinders the relative motion of object and kinergety be converted into heat energy or other can dissipation energy.Damping can reduce the resonance amplitude of frame for movement, reduces the acoustic radiation because mechanical oscillation produce, and reduces osteoacusis hair band and leaks sound.During the work of osteoacusis hair band, for leakage tone signal, the vibration of certain frequency can be produced when colliding along bone conduction vibrator gravity axis direction metal conduction bed device, because metal is good conduct vibrations medium, can the vibration signal of axis be distributed on its area as far as possible equably, so the vibration signal in unit are is equivalent to be averaged and reduce, but do not absorbed.Meanwhile, metal level and semi-solid layer fit tightly, vibration signal in metal level one side can be transmitted on semi-solid layer equably, if metal and the semi-solid composite bed formed do not have External Force Acting, the vibration that bone conduction vibrator excites will progressively decay, the speed of decay depends on the amount of decrease of semisolid material will obtain formula below according to Newton's law:

Quality+resistance+elastic force=0

If ignore amount of decrease to disregard, the intrinsic frequency that can obtain semi-solid layer is as follows:

$f_0=\frac{1}{2\·\mathrm{\π}}\·\sqrt{\frac{C}{M}}---\left(3\right)$

Wherein, f ₀represent the intrinsic frequency of semi-solid layer; C represents the spring rate of semi-solid layer; M represents semi-solid layer quality.When the impact force of vibration is away from center of gravity, semi-solid layer can produce twisting vibration in three axles, and respective angular frequency is:

${\mathrm{\ω}}_D=\frac{C_V}{J}---\left(4\right)$

Wherein, ω _drepresent angular frequency; C _vrepresent torsional rigidity; J represents inertia.

Semi-solid layer in the present invention has the characteristic resonance strengthened gradually being reduced to certain level under normal circumstances, and namely the isolation of semi-solid layer efficiency of only shaking equal excited frequency/intrinsic frequency: when time, exciting force is by minimizing and be far not equal to intrinsic frequency, and semi-solid layer will play the effect of separating vibration, and when η=3, the effect of only shaking of semi-solid layer will reach 80%, that is only has the exciting of 20% to vibrate and is being conducted.Therefore, the semi-solid layer in the present invention can replace metal spring of the prior art to play weakening, absorbing effect, and its main performance requirement is in Static stiffness, dynamic stiffness, endurance quality.

Semi-solid layer in the present invention is the thick substances between solid and liquid, and it possesses following characteristics:

1, form by multiple material is combined, same shape can have different performances by material adjustment.

2, the friction between semi-solid layer interior molecules makes it have certain damping capacity, the hysteresis quality (in loading process, the deformation hysteresis of semi-solid layer is in the stress of semi-solid layer) of namely moving.

3, semi-solid layer all can produce different coefficient of elasticity in compression, shearing, drawing process.

In the present invention, the material of semi-solid layer is configured to rubber.Because osteoacusis hair band leakproof sound requires large to damping and amortization, so butyl rubber (IIR) material possessing better damping capacity is optimum semisolid material.It can alleviate the power of leaking sound vibration dispersion and getting off, and can not produce larger cohesive force.But the present invention is not limited to butyl rubber (IIR) material, other available rubber is natural rubber (polyisoprene, NR); butadiene-styrene rubber (SBR), butadiene rubber (BR), neoprene (CR); isoprene rubber (IR); nitrile rubber (NBR), EP rubbers (EPDM), hydrogenation nitrile rubber (HNBR) etc.

Except semi-solid layer in the present invention, also introduce the concept of metal level, it combines with semi-solid layer and can realize a composite bed (i.e. compound only shake layer), this composite bed is as the basic leakproof sound unit that only shakes, and the mode that can be superposed by multiple composite bed realizes the elimination of leakproof sound.Metal level is aluminium foil or Copper Foil, but is not limited to this two kinds of metals.And this composite bed both can design and be placed on bone conduction vibrator inside, also can be arranged on outside bone conduction vibrator.So the present invention's at least 1 composite bed carries out the operation of axially only shaking in bone conduction vibrator inside or outside.Generally speaking, this composite bed prevents the principle of osteoacusis leakage sound as follows:

1, homogenising vibration: by this good conduct vibrations medium of metal level, can be evenly distributed in original axial high-intensity oscillation signal on a larger area, so the vibration signal of unit are is actually reduction.

2, vibration is absorbed: composite bed of the present invention may be used for the connection of bone conduction vibrator internal vibration element and shell, can be described as inner composite bed.Under this state, internal vibration element is vibration source, the effect of inner composite bed be absorb its fit in the axial direction shell time the vibration that produces, avoid leaking sound and be delivered to the outside of bone conduction vibrator, also slightly can reduce the vibration of internal vibration element self simultaneously.The external diameter of inner composite bed is less than the external diameter of bone conduction vibrator.

3, abatement vibration: composite bed of the present invention also may be used for the connection between bone conduction vibrator and hair band framework, outside composite bed can be become, under this state, whole bone conduction vibrator is vibration source, the effect of outside composite bed is cut down rapidly by high damping effect at the vibration that bone conduction vibrator and hair band framework produce, and prevents vibration from being produced by hair band frame vibration air and leak sound.The external diameter of outside composite bed is more than or equal to the external diameter of bone conduction vibrator.

This invention also solves the problem of traditional hair band function singleness, Self-timer is provided, can be anti-lost, environment, health detection can be realized, there is the function of intelligent personal voice assistant.In use, both hands strut hair band and are worn on the head backward in the present invention, and bone conduction vibrator should be positioned at ear rear, and hair band tip is close to the temporal bone baring skin part after ear, instead of in ear or have the intensive cover part of hair.The present invention has 4 basic functions: play phone, broadcasting music, auto heterodyne photograph and mobile device anti-lost.This is all completed by a button.First be phone operation.After hair band and Bluetooth mobile equipment match, when having phone to call in, short in once answering the call; After end of conversation, again short in once hanging up.When being inconvenient to answer the call, length can be hung up by button for 2 seconds.Under open state, shortly pressing twice, is redial fast.Start duration button 5 second is the operation of shutdown.Control for music, short is broadcasting and the time-out of music by 1 time.Cut song and tuning amount need to operate on the mobile apparatus.Use long-range Self-timer to need to open the camera interface of bluetooth connection mobile device, length can realize autodyning by the button in the present invention for 1 second.The anti-lost function of mobile device supports two kinds of distance mode.Short distance anti-lost needs installs " the anti-lost V1.0 of bluetooth " application program of mobile phone (App).It realizes the warning within the scope of 1 to 3 meters.Long distance then without the need to application program of mobile phone (App), when hair band exceed 10 meters with the distance of mobile device time, automatically can send prompt tone.

The present invention also has one group of health sensor group be embedded in outside hair band.They are used to be supplied to user feeling communication, and such as: Health & Fitness Tip, emotion is advised.Parameter estimation algorithm can pass through intelligent personal assistants, such as: realized by the Siri of Apple or the Cotana of Microsoft, but is not limited to certain specific intelligent personal assistants technology.Intelligent personal assistants can provide the service of voice message and emotion to user.This part will be described in detail later.Sensor as used herein is one in the basic testing agency of user feeling perception.These sensors comprise heart rate sensor, for the HR Heart Rate of recording user; Blood oxygen transducer, for detecting the oxygen content in blood.These sensors are also arranged on the end of hair band, make them can contact hair and do not have chlamydate skin.Also comprise clinical thermometer, clinical thermometer can carry out collection analysis to the temperature data of user every day, thus provides healthy or physiological suggestion according to statistical information to user.Such as according to the basal body temperature Changing Pattern of woman to the menstrual cycle, whether pregnancy judges, points out user related information by individual voice assistant.

Present invention achieves intelligent personal assistants function.The invention provides the function that two kinds of methods realize intelligent personal assistants.

The first intelligent personal assistants function of the present invention based on its sensor real time data and realize.The present invention monitors the data of health sensor, if viewed sensing data is once the threshold value predetermined more than, the sound of intelligent personal assistants will be triggered, and the health parameters of reminding user exceeds threshold value, the need of contact household or doctor etc.Such as, when user is too violent owing to moving in motion process, time its heart beat rate exceeds predefined threshold value, intelligent personal assistants sends prompting message to user.Intelligent personal assistants possesses computing function, and computing function both can perform at native processor, also can perform in cloud server end.When calculating in cloud server end, hair band of the present invention only needs to transfer data to server, server calculates and retrieves Health database to judge the data obtained whether exceed health or safe range, finally the result of calculating and conclusion is returned to hair band by wireless network.In addition, suggestion provided by the invention can be the further input from user, such as user can input in advance: " beat rate of heart exceedes normal level; slow down the need of consideration; this is better to your health " etc., like this when user's heart beat rate exceeds predefined threshold value time, the suggestion of hair band can be received.Hair band of the present invention can play the function exceeding personal assistant, when it is when cloud server end connects corresponding database, such as, motion database, medical data base, psychological data storehouse and natural science database, the present invention can be converted to functions such as possessing personal coach, private healthy doctor, private shrink or private private tutor.Another example is, when user feel sorrowful, cry time, this sensor can feed back, and the emotion of display user is sentimental, and individual intelligent assistant can trigger and play soft music, to alleviate the mood of user.For user, they may need individual to look after, and by chatting with intelligent personal assistants with the mood relaxed.

The second intelligent personal assistants function of the present invention is triggered by record and retrieves historical data.Intelligent personal assistants detects the frequency of the keyword that user pays close attention to a specific period.When individual intelligent assistant detects that a certain keyword is repeated and exceeds the number of times of predefined threshold value, show that user is in the information paying close attention to this keyword, at this moment individual intelligent assistant can record and upload this keyword and retrieve to Cloud Server and historical data base, when result for retrieval finds that this key occurs at specific time period really, hair band of the present invention thinks that user pays close attention to related subject, the topic of such as life style, Star News, Eight Diagrams are searched for, shopping, information of discount etc., at this moment cloud server end can pass through search engine retrieving internet, relevant information is extracted by convolutional neural networks algorithm, by the frequency of composite key and sensor, mood and emotion are detected, whether prompting user pays close attention to related content.If so, then related content is read aloud; If not, then abandon playing related content, and by the feedback of client stored in the historical data base of Cloud Server for retrieving use next time.So this historical data base has self-learning function, be constantly perfect along with the use of user, there is individual's property of height.So the present invention can make intelligent personal assistants have self-learning function by this method.The present invention can provide private and exchange with intimate.The embodiment of the method combined for user emotion and health examination is shown in Figure 14.

As shown in figure 14, first the heart rate of user is responded to by health sensor, blood oxygen and temperature, judge whether the data detected exceed default healthy threshold value, if not, the heart rate of user is then again responded to by health sensor, blood oxygen and temperature, if, then record the statement that in the statement that now user sent by bone-conduction microphone and air conduction microphone, word frequency is higher, upload to Cloud Server and carry out calculating retrieval, Cloud Server calculates statement and extracts high word frequency keyword, the historical data base of comparison nearest a period of time, search key, judge whether the high word frequency keyword extracted mates with the high word frequency keyword in database, (show that the high word frequency keyword extracted does not retrieve in a database) if not, by the new keywords that do not retrieve stored in high word frequency keyword database, if, then trigger the intelligent personal assistants engine. retrieves internet on Cloud Server, and calculate by convolutional neural networks algorithm the event that this keyword can produce, by the suggestion of event the highest for priority, answer, next step problem returns to hair band, by voice broadcast to user, judge that whether user is satisfied to the voice messaging of feedback, if, end program, if not, further for user problem is uploaded to Cloud Server intelligent personal assistants engine by hair band, again the intelligent personal assistants engine. retrieves internet on Cloud Server is triggered, and calculate the event that this keyword can produce, by the suggestion of event the highest for priority, answer, next step problem returns to hair band, by voice broadcast to user.

The present invention is not limited to the function that communication realizes osteoacusis hair band.In addition, wired mode is applicable to the present invention too.Cable technology embodiment of the present invention does not need battery, wireless communication unit, antenna, as shown in figure 15.Such benefit is:

1. greatly simplified circuit complexity, decreased manufacturing operation, reduce manufacturing cost;

2. user need not worry that bluetooth osteoacusis hair band uses rear electricity deficiency to cause using for a long time.Cable technology enforcement itself does not need powered battery.The external equipment that the supply of its power supply connects from it, such as PC (PC), mobile device.

As shown in figure 15, active wired osteoacusis hair band that the present invention proposes is made up of following components: hair band body 150, acoustical cotton layer 151, cloth art integument (not shown), decorative layer (not shown), bone conduction vibrator 152, sponges cover 153, leak sound buffer 154, bone-conduction microphone 155, osteoacusis drive-by-wire device mainboard 156, USBOTG power supply interface, 3.5mm COBBAIF 157, USBOTG converter 158.Inside hair band body, bone conduction vibrator is fixed at two ends.Do not have circuit main board and battery to be fixed on hair band body in implementing to implement unlike, cable technology with wireless technology thus saved cost.Two bone conduction vibrator are connected to osteoacusis drive-by-wire device mainboard by one point of Multi-audio-frequency power splitter 159.This drive-by-wire device mainboard is actually the circuit main board of a compact version, only retains osteoacusis driving amplifier, volume control button 1510 and at least 1 gas conduction microphone 1511.The audio input port of osteoacusis drive-by-wire device mainboard connects a tone frequency channel wire 1512, and the 3.5mm COBBAIF 157 of tone frequency channel wire end is a general 3.5mm audio connector male (AVJack).It is a general USBType-A type Male head connector 1514 that the power supply port of drive-by-wire device mainboard connects USB line 1513, a USB line end.Type-A type interface conversion can be supported arbitrarily style connector form, such as MicroUSB connector, i Phone data connector etc. for other by USBOTG converter 158 by USBType-A type Male head connector.When electrical connectivity satisfies condition, USBOTG converter is not limited to certain specific interface shape.

In use, connection device is needed to provide a 3.5mm audio connector female and data interface connector female OTG can supported, provide 3.3V or 5V to power.Cable technology embodiment of the present invention is connected by 3.5mm audio frequency, USBOTG connector is connected with equipment with converter, respectively audio frequency and power supply are transmitted, the audio signal that equipment is exported and the input of power supply as osteoacusis drive-by-wire device mainboard, after drive-by-wire device amplifies audio signal, reach bone conduction vibrator acceptable signal power level, directly carry out shunt by one point of Multi-audio-frequency power splitter, drive bone conduction vibrator conduction audio frequency to arrive auditory nerve respectively.

This invention also solves plastic material such as the contact skins such as polyvinyl chloride (PVC), polypropylene (PP) or polyethylene (PE) that in prior art, hair band body adopts and cause discomfort, allergic problem.The present invention adopts Merlon (PC), instead of discomfort, irritated problem that PVC, PP or PE avoid Long Term Contact skin to cause, and the material non-toxic evil that the present invention adopts.Merlon (PC) material is as hair band body, but it does not contact skin, and outside has acoustical cotton layer, cotton layer to wrap up, and really contact skin is cotton layer.So the present invention is actually the hair band of a cloth art, there is obvious difference with plastics earphone of the prior art and hair band.Cotton material contacts skin is consistent with the experience of contact with clothing.So the present invention can provide comfortable, not irritated, the healthy bone of nonhazardous conduction hair band.

In addition, this invention also solves the problem that in prior art, hair band button is many, achieve the simplified way adopting unique button to complete all operations, the mode combined by software and hardware achieves the simplification of button, and unique button can realize several functions.

The present invention compared with prior art, has the following advantages and good effect:

1, the function such as achieve the functional diversities of osteoacusis hair band, maintain the aesthstic attractive force of traditional cloth art hair band, the feature such as comfortable, healthy, add auto heterodyne, anti-lost, Environmental Health monitoring, intelligent personal voice assistant, wireless voice telephony, listen to the music.

2, solve the leakage mail topic of bone conduction technology, effectively protect user's individual privacy in use.

3, solving bone conduction technology is sending in words process, the problem of ambient noise interference.The present invention can offset ambient noise, ensures in call, only has pure user speech.

4, achieve the high-quality bone conduction audio-frequency that prior art cannot realize, solve skeleton and the attenuation of tissue to vibration signal.

5, simplify the complex circuit designs degree of osteoacusis hair band, reduce cost, reduce power consumption.

6, solve user that existing plastics osteoacusis hair band causes wear uncomfortable, easily cause allergic problem.

7, simplify the input operation of osteoacusis hair band, achieve the method that a unique button just can complete all operations, make that osteoacusis hair band and user's is mutual more friendly.

8, the present invention both can be implemented by the mode of wireless connections, also can be connected by wired mode.By 3.5mm audio connector and USBType-A type connector, can general connection existing equipment, without the need to powered battery, round-the-clock use can be realized.Wired connection mode is the important supplement of radio connection, meets the needs of different user for different application scene.

More than show and describe principal character of the present invention and advantage of the present invention.Those skilled in the art should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (11)

1. an osteoacusis hair band, it is characterized in that, described osteoacusis hair band comprises: flexible ductile Horseshoe hair band body, acoustical cotton layer, cloth art integument, decorative layer, at least 2 bone conduction vibrator, at least 2 leakproof sound buffers, at least 2 sponges covers, at least 1 air conduction microphone, at least 1 bone-conduction microphone, circuit main board, rechargeable battery and 1 one point of Multi-audio-frequency power splitter, described acoustical cotton layer is fixedly installed on the outside of hair band body, in hair band body and acoustical cotton layer are wrapped in by described cloth art integument and decorative layer; At least 2 bone conduction vibrator are arranged on the end inside hair band body; Leakproof sound buffer is arranged on the binding site of the contact between bone conduction vibrator and hair band body; Bone conduction vibrator is wrapped in wherein by sponges cover; Air conduction microphone is integrated to be arranged on circuit main board; Bone-conduction microphone is arranged on the inside top of hair band body; Circuit main board is arranged on the outside of hair band body, and the thickness of circuit main board is identical with acoustical cotton layer, and is parallelly embedded between two pieces of acoustical cotton layers, and is fixed on the outside of hair band body; Also integratedly on described circuit main board be provided with Digital Signal Processing and wireless transmit/receive units, antenna, bone conduction vibrator driver, at least 1 group motion sensor, at least 1 group health sensor and 1 controls button; Rechargeable battery is fixed on second half outside of hair band body, relative with circuit main board, can maintain the balance of hair band weight, and rechargeable battery is connected on circuit main board; One point of Multi-audio-frequency power splitter connects the circuit main board in outside and the bone conduction vibrator of inner side of hair band body, is connected by the port of bone conduction vibrator with the bone conduction vibrator driver on circuit main board by one point of Multi-audio-frequency power splitter; Can either wired connection be supported with the connected mode of external equipment, also can support wireless connections.Described hair band body comprises main body and two extending bodies, two extending bodies are connected respectively to the two ends of main body according to predetermined curvature, and two extending bodies allow its respective length of adjustment, 2 bone conduction vibrator are had at least to lay respectively at two ends inside hair band body, 1 bone-conduction microphone is had at least to be positioned at centre position inside hair band body, when user wears osteoacusis hair band time, 2 bone conduction vibrator are close to the temporal bone part on rear side of ear respectively, and bone-conduction microphone is positioned at the position on skull top.

2. osteoacusis hair band according to claim 1, is characterized in that, described motion sensor comprises pedometer, gyroscope and/or barometer; Health sensor comprises heart rate sensor, blood oxygen transducer and/or thermometer; Digital Signal Processing and wireless transmit/receive units comprise wireless transceiver, antenna, microprocessor, audio codec, audio drive amplifiers, baseband digital signal processor and memory cell.

3. osteoacusis hair band according to claim 1, it is characterized in that, described bone conduction vibrator comprises metal shell, and the oscillator element be connected with metal shell, the side of metal shell is provided with audio input terminal, and oscillator element is connected by audio wire with between audio input terminal; The below of metal shell is provided with outside semimetal layer and outside semi-solid layer; Outer semimetal layer and outside semi-solid layer form outside compound and only to shake layer, and only the shake below of layer of outside compound is provided with acoustical cotton layer.

4. osteoacusis hair band according to claim 3, it is characterized in that, the external diameter of described oscillator element is 13mm, vertical height from the outermost edges of oscillator element to outside semimetal layer is 10mm, the external diameter of metal shell 134 is 18mm, described acoustical cotton layer is rubber and plastic material, adopts the design of bubble closed pore; The material of described semi-solid layer is configured to rubber, comprises butyl rubber, natural rubber, butadiene-styrene rubber, butadiene rubber, neoprene, isoprene rubber, nitrile rubber, EP rubbers or hydrogenation nitrile rubber; Described semimetal layer is aluminium foil or Copper Foil.

5. osteoacusis hair band according to claim 1, it is characterized in that, described bone-conduction microphone and air conduction microphone alternation are carried out sending words, judge whether bone-conduction microphone should be activated by the input power threshold value of a predefined bone conduction vibrator, when the input power of bone conduction vibrator exceedes predefined threshold value, forbidding bone-conduction microphone send talking path, activates air conduction microphone simultaneously and carries out sending words; When the input power of bone conduction vibrator is lower than predefined threshold value, activates bone-conduction microphone and carry out sending words, close air conduction microphone simultaneously and send talking path.

6. osteoacusis hair band according to claim 1, it is characterized in that, systems axiol-ogy to bone conduction vibrator just in working order, bone-conduction microphone and empty air conduction microphone are all movable simultaneously, but, they directly do not export the signal that detects to wireless connections module, the voice of acquisition environment noise and user while of air conduction microphone, and bone-conduction microphone can only detect the voice of the user produced by vibration due to self character, then, use suitable correlation, and the detection signal of bone-conduction microphone is deducted with the detection signal of the air conduction microphone before adjustment, ambient noise signal just can be extracted by digital signal processing method, then, the ambient noise be extracted can be carried out synchronous with conductance microphone signal, subtraction operation is carried out between them, the ambient noise that such air conduction microphone is collected just can be cancelled completely, therefore, no matter whether bone conduction vibrator works, air conduction microphone or the sound collected by bone-conduction microphone can both reach the object of elimination to ambient noise.

7. osteoacusis hair band according to claim 5, it is characterized in that, multiple bone-conduction microphone is separately positioned on different positions, multiple bone conduction vibrator is separately positioned on different positions, is provided the multipath diversity of receiver side and emitting side by multiple bone-conduction microphone and multiple bone conduction vibrator simultaneously.

8. osteoacusis hair band according to claim 1, it is characterized in that, 1 described control button can complete and play phone, play music and auto heterodyne camera function, after hair band and Bluetooth mobile equipment match, when there being phone to call in, be answer the call by once controlling button; After end of conversation, be hang up by once controlling button again; When being inconvenient to answer the call, length can be hung up the telephone by control button for 2 seconds; Under open state, controlling button by twice is redial fast; Start duration, by controlling button 5 second, is the operation of shutdown; Music is controlled, controls by 1 time broadcasting or the time-out that button is music; Use the camera interface needing to open the mobile device that bluetooth connects during long-range Self-timer, length can realize autodyning by the control button of hair band for 1 second.

9. osteoacusis hair band according to claim 1, it is characterized in that, described osteoacusis hair band possesses intelligent personal assistants function, the heart rate of user, blood oxygen and body temperature temperature is responded to by described health sensor, if find that sensing data exceedes predetermined threshold value, the sound of intelligent personal assistants will be triggered, and the health parameters of reminding user exceeds threshold value; The inspection data of health sensor can also be transferred to remote cloud server by described osteoacusis hair band, calculated by Cloud Server and retrieve Health database to judge the data obtained and whether exceed health or safe range, finally the result of calculating and conclusion are returned to hair band by the mode of wireless transmission.

10. osteoacusis hair band according to claim 1, it is characterized in that, described osteoacusis hair band can word frequency is higher in the statement that sent by bone-conduction microphone and air conduction microphone of recording user statement, upload to Cloud Server and carry out calculating retrieval, Cloud Server calculates statement and extracts high word frequency keyword, the historical data base of comparison nearest a period of time, search key, judge whether the high word frequency keyword extracted mates with the high word frequency keyword in database, if the high word frequency keyword extracted does not retrieve in a database, then by the new keywords that do not retrieve stored in high word frequency keyword database, if coupling, then trigger the intelligent personal assistants engine. retrieves internet on Cloud Server, calculate by convolutional neural networks algorithm the event that this keyword can produce, the suggestion of event the highest for priority, answer and next step problem are returned to hair band, by voice broadcast to user.

11. 1 kinds of active wired osteoacusis hair bands, it is characterized in that, this active wired osteoacusis hair band comprises hair band body, acoustical cotton layer, cloth art integument, decorative layer, bone conduction vibrator, sponges cover, leak sound buffer, bone-conduction microphone, osteoacusis drive-by-wire device mainboard, USBOTG power supply interface, 3.5mm COBBAIF and USBOTG converter, inside hair band body, two bone conduction vibrator are fixed at two ends, two bone conduction vibrator are connected to osteoacusis drive-by-wire device mainboard by one point of Multi-audio-frequency power splitter, this osteoacusis drive-by-wire device mainboard is provided with an osteoacusis driving amplifier, a volume control button and at least 1 gas conduction microphone, the audio input port of osteoacusis drive-by-wire device mainboard connects a tone frequency channel wire, the 3.5mm COBBAIF of tone frequency channel wire end is a general 3.5mm audio connector male, the power supply port of drive-by-wire device mainboard connects a USB line, USB line end is a general USBType-A type Male head connector.