CN1054721C - Frequency modulation subcarrier imitating speech-sounds signal paging receiving system and method - Google Patents
Frequency modulation subcarrier imitating speech-sounds signal paging receiving system and method Download PDFInfo
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- CN1054721C CN1054721C CN96103558A CN96103558A CN1054721C CN 1054721 C CN1054721 C CN 1054721C CN 96103558 A CN96103558 A CN 96103558A CN 96103558 A CN96103558 A CN 96103558A CN 1054721 C CN1054721 C CN 1054721C
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Abstract
The present invention relates to a system for paging and receiving a simulation speech signal through a frequency modulated subcarrier and a method thereof. The system mainly comprises a radio frequency receiver, a decoder, a microprocessor and a memory. A telegraphic code signal is synchronously received on a channel through the frequency modulated subcarrier (FMSCA), and the telegraphic code signal can contain a speech distant signal. When the system receives the speech distant signal, a simulation speech signal is nonsynchronously received on the other channel through the frequency modulated subcarrier. Speech call paging can be provided, the defect that the inconvenience of a common character digital display calling device is overcome, and speech instantaneous information paging can be provided.
Description
The present invention is relevant for a kind of paging receiving system and method, particularly relevant for a kind of frequency modulated subcarrier (FM SCA) analog voice paging receiving system and method.
Literal and digital display type beep-pager are extensively adopted by business circles and mass society masses at present, mainly reach in order to the paging user it is conveyed a message.Yet alphanumeric display type beep-pager also can only be passed on brief information such as telephone number, code, numeral, simple Chinese sentence so far, and be not suitable for passing on relatively large information to a large number of users, especially instant messages of more and more needing of some industrial and commercial societies are for example as instant financial market such as stock, futures, the exchange rate; The instant emphasis time such as industry and commerce, economy, physical culture ball match etc.;
No. the 157687th, Taiwan patent " voice paging machine " discloses a kind of beep-pager that sends voice.It is encoded middle literal, and after can changing a string character code into synthetic voice, is played back by loudspeaker.Though this kind voice paging machine can make things convenient for the user, need not see that display promptly knows the information that is communicated, yet the sound of phonetic synthesis is comparatively jerky, is not suitable for playing relatively large information.Moreover its transmission end need be with just spreading out of behind word code of word of a string Chinese information, and is obviously very loaded down with trivial details.
No. the 170827th, Taiwan patent " facsimile machine frequency modulated subcarrier whistle control system ", exposure can be utilized the receive faxes control system of signal of wireless frequency modulation subcarrier.Yet at present wired and wireless telephone line is all very universal, connects general facsimile machine or PC fax card indoor with telephone, and information easily all can transmit and receive faxes.Also can utilize mobile phone (as mobile telephone) and carry computer (as notebook computer) outdoor, information transmits and receives faxes.Therefore, the actual usefulness of this patent is little, and cost is not low, and is not suitable for being applied to paging system.
Main purpose of the present invention is to provide a kind of frequency modulation subcarrier imitating voice signal paging receiving system and method, and it can utilize frequency modulated subcarrier, and at different channel, receiving digital signals receives analog voice signal in asynchronous mode by different way.The present invention not only has the function of normal words numeral display type beep-pager, can carry bulk information but also can receive, the analog voice signal that can be played back reliably.
Another object of the present invention provides a kind of frequency modulation subcarrier imitating voice signal paging receiving system and method, and it can and receive between the analog voice signal channel at the channel of receiving digital signals and automatically switch.
Three of purpose of the present invention provides a kind of frequency modulated subcarrier voice signal paging receiving system and method, wherein voice signal is planned to by voice through modulating the frequency modulated subcarrier signal that (modulate) forms after the encryption again, it can comprise an audio call paging (voice paging) signal, gives the user in order to pass on voice messaging; And voice instant messages paging (voice news paging) signal, in order to pass on as instant financial market such as stock, futures, the exchange rate; The instant emphasis time such as industry and commerce, economy, physical culture ball match; And similar various information, range of application is very extensive.
Four of purpose of the present invention provides frequency modulated carrier analog voice signal paging receiving system and the method that a kind of user of permission sets the desired voice messaging of selectivity in advance, and it is provided with a setting device.
Five of purpose of the present invention provides a kind of frequency modulation subcarrier imitating voice signal paging receiving system and method, and it is provided with a tape deck, and the analog voice signal that arrives in order to recorder is so that the user can repeat to broadcast at any time.
Six of purpose of the present invention provides a kind of frequency modulation subcarrier imitating voice signal paging receiving system and method, it utilizes the frequency modulated subcarrier of radio wave to receive analog voice signal, is lower than mobile phone (as mobile telephone) so that reach the cost of transmission system and receiving system.
For reaching above-mentioned purpose of the present invention, take following measure:
A kind of frequency modulation subcarrier imitating voice signal paging receiving system of the present invention comprises a receiving system, and it utilizes frequency modulated subcarrier, receives the code signal with the method for synchronization on a channel;
Receiving system comprise an antenna, radio frequency receiver that is connected with antenna, decoder that is connected with radio frequency receiver and one respectively with decoder and radio frequency receiver microprocessor linked, in order to receive described decoded code signal;
It is characterized in that, also comprise:
A voice decryption device, it connects radio frequency receiver, in order to the reception analog voice signal and to its deciphering; And
Loudspeaker, it connects described voice decryption device, plays out in order to the analog voice signal after will deciphering;
Receiving system receives analog voice signal in asynchronous mode on second channel; When containing the voice anticipating signal in the code signal, microprocessor is controlled described radio frequency receiver and is switched to second channel, and receives described analog voice signal in asynchronous mode.
Wherein, also comprise a setting device in order to type, class and the item of the analog voice signal of setting desire reception, it is connected with described microprocessor.
Wherein, described setting device is a keyboard.
Wherein, also comprise a tape deck, it connects described voice decryption device and loudspeaker, in order to the analog voice signal after reception and the record deciphering, and can be in order to the analog voice signal of replaying and being write down.
Wherein, described tape deck is a belt phonographic recorder.
Wherein, described tape deck comprises that one connects the A/D converter of described voice decryption device, a compress speech decompressor that connects described A/D converter and a memory that connects compress speech decompressor and microprocessor;
When record, analog voice signal behind the analog/digital converter receiving and deciphering, and be converted to digital signal, the compress speech decompressor receives and compression digital signal, digital signal after the memory storage compression, the compress speech decompression machine receives and this compressed digital signal that decompresses, and analog-digital converter plays out via loudspeaker after the digital signal that decompresses is converted to analog voice signal.
A kind of frequency modulation subcarrier imitating voice signal paging method of reseptance of the present invention comprises the following steps:
Utilize frequency modulated subcarrier, on a channel, receive a code signal with the method for synchronization;
It is characterized in that, when comprising the voice anticipating signal in the code signal that receives, utilize frequency modulated subcarrier, on second channel, receive analog voice signal in asynchronous mode;
The method of reseptance of code signal comprises the following steps: to judge whether it is an alphanumeric signal, if then stored and announce the user when receiving described code signal; Judge whether it is time calibration signal, if, alignment time then; Judge whether it is a voice anticipating signal, if then identify the frequency of type, class, item and delivery time, length and second channel of analog voice signal.
For further specifying the features and advantages of the present invention, special in conjunction with some preferred embodiments and conjunction with figs., details are as follows:
The accompanying drawing simple declaration:
Fig. 1 is the present invention's first preferred embodiment, a kind of circuit block diagram of simple-type frequency modulation subcarrier imitating voice signal paging receiving system;
Fig. 2 is the present invention's second preferred embodiment, a kind of circuit block diagram of the belt frequency modulation subcarrier imitating voice signal paging receiving system of recording;
Fig. 3 is the present invention's the 3rd preferred embodiment, the circuit block diagram of a kind of Digital Signal Processing (DSP) formula frequency modulation subcarrier imitating voice signal paging receiving system;
Fig. 4 is the circuit block diagram of the radio frequency receiver embodiment among three embodiment of the present invention;
Fig. 5 is the schematic flow sheet of received signal of the present invention;
Fig. 6 is the schematic flow sheet that the present invention monitors the code signal;
Fig. 7 is the schematic flow sheet of received speech signal of the present invention;
Fig. 8 is the schematic flow sheet that the present invention extracts storage assembly.
System and method of the present invention mainly is to utilize frequency modulated subcarrier, receives a code signal with the method for synchronization on a channel, and receive analog voice signal by different way on another channel.
According to the present invention, analog voice signal can be formulated for the frequency modulated subcarrier signal that is modulated into again after by encryption by voice, and it can be divided into audio call paging signal (voice paging message) and voice instant messages paging signal two kinds of " type " signals such as (voice news paging message).Voice instant messages paging signal can be divided into many kinds " class " signal again, for example: instant financial market such as stock, futures, the exchange rate; Instant highlight such as business and economy, physical culture, ball match etc.; Each " class " can be divided into many " item " signal again, for example: can be further divided into a few personal share items under the stock " class ".
The code signal then can be planned to alphanumeric signal, and the time calibration signal and the voice anticipating signal of control information of general information.The alphanumeric signal of general information is passed on is information to the user, and it is can be roughly identical with the information of traditional alphanumeric display type beep-pager.What control information was passed on then is the instruction of control system of the present invention, wherein time calibration signal is in order to the time of calibration system of the present invention, the voice anticipating signal has been about to analog voice signal reception and registration in order to inform native system, and time, length and the channel of " type ", " class " under the analog voice signal that will pass on, " item " and transmission thereof.
Though in this manual, the planning of code signal and analog voice signal as above, those who are familiar with this art should understand, its only be for spirit of the present invention is described for example, be not in order to limit the present invention.
Please refer to Fig. 1, it is the present invention's first preferred embodiment, a kind of circuit block diagram of simple-type frequency modulation subcarrier imitating voice signal paging receiving system.Native system comprises a microprocessor 16 in order to executive program, the running of control native system; An antenna 11; A radio frequency receiver 12 is connected to antenna 11 and microprocessor 16, so that can be received respectively and demodulation analog voice signal and code signal by antenna 11; And a decoder 14 is connected between radio frequency receiver 12 and the microprocessor 16.Microprocessor 16 can be a CPU (CPU) or similar circuit.Radio frequency receiver 12 receives the also code signal of demodulation, deals with via input microprocessor 16 after demodulator 14 decodings.
This paging receiving system comprises that also a voice decryption device 13 is connected to radio frequency receiver 12, radio frequency receiver 12 receives and the voice signal of demodulation in order to receive and to decipher, and loudspeaker 21 are connected to voice decryption device 13 and microprocessor 16, play out in order to the analog voice signal after will deciphering, the user that perhaps gives notice has information or situation.
This paging receiving system can comprise in addition that a timer 15 is connected to microprocessor 16, in order to clocking capability to be provided; A memory 17 is connected to microprocessor 16, in order to program, signal, data and state of storing native system or the like; A keyboard 18 is connected to microprocessor 16, uses for the user and operates input; A display 19 is connected to microprocessor 16, in order to video data; And an electromagnetic shaker 20 is connected to microprocessor 16, notifies the user that information or situation are arranged in order to produce vibrations.Keyboard 18 is operated the native system except the user is provided, type, class and the item that also can provide the user to set the analog voice signal of desire reception in advance; When being set in information or situation, notify user and other related setting in which way.
Function mode, flow process and the function of the preferred embodiment of this paging receiving system, with a flow implementation example that cooperates Fig. 5 to 8 figure to be lifted, remake be described in more detail in after.
Please refer to Fig. 2, it is second preferred embodiment of the present invention, a kind of circuit block diagram of the belt frequency modulated subcarrier voice signal paging receiving system of recording.This preferred embodiment and above-mentioned first preferred embodiment are very similar, but different is that this paging receiving system comprises that more a tape deck 22 is connected to voice decryption device 13 and loudspeaker 21, in order to the voice signal after reception and the record deciphering, and the voice signal that can replay and write down by loudspeaker 21 again.In this preferred embodiment, tape deck 22 is a belt phonographic recorder or recorder (tape recorder).
Function mode, flow process and the function of the preferred embodiment of this paging receiving system, a flow implementation example that also will cooperate Fig. 5 to 8 figure to be lifted, remake be described in more detail in after.
Please refer to Fig. 3, it is the present invention's the 3rd preferred embodiment, a kind of Digital Signal Processing formula (DSP) frequency modulation subcarrier imitating voice signal paging receiving system circuit block diagram.This preferred embodiment and aforementioned first preferred embodiment are very similar, but different be that this paging receiving system comprises that more a digital quantizer 23 (voice AD/DA converter) is connected to voice decryption device 13 and loudspeaker 21 and compress speech decompressor 24 and is connected 17 of A/D converter 23 and memories.When record, the analog voice signal behind A/D converter 23 receiving and decipherings, and be converted to digital signal, 24 of compress speech decompression machines receive and compress this digital signal, follow the digital signal after memory 17 receives and store compression.When replaying, compressed digital signal is sent in microprocessor 16 controls 17, and compress speech decompressor 24 receives the decompression compressed digital signal, and then A/D converter 23 receives the digital signal that decompresses, and after being converted to analog voice signal, play out via loudspeaker 21.
The function mode of the preferred embodiment of this paging receiving system, flow process and function, a flow implementation example that will cooperate Fig. 5 to Fig. 8 to lift equally, remake be described in more detail in after.
Please refer to Fig. 4, it is the radio frequency receiver 12 among above-mentioned three embodiment of the present invention, the circuit block diagram of embodiment.As shown in the figure, radio frequency receiver 12 comprises a radio frequency amplifier 41, in order to being amplified via the signal that antenna is received; A radio frequency mixer 42 is connected to radio frequency amplifier 41, is connected to radio frequency amplifier 41 in order to amplifying signal is given at mixer 42, in order to amplifying signal is given smear and obtains intermediate frequency (IF) signal; An intermediate frequency amplifier 44 is connected to radio frequency mixer 42, in order to receive and to amplify this intermediate-freuqncy signal; And a demodulator 45 is connected to intermediate frequency amplifier 44, the intermediate-freuqncy signal and the output of amplifying in order to demodulation.Radio frequency receiver 12 comprises that in addition a voltage-controlled oscillator 43 is connected to radio frequency mixer 42, is used for controlling the switching of channel.
Please refer to Fig. 5, it is in order to the flow process of the received signal of explanation embodiment of the invention system, and please be simultaneously referring to figs. 1 through Fig. 3.Native system monitors the channel (step 50) of code signal at any time, after receiving the code signal and inputing to microprocessor 16 (step 51), judge whether it is alphanumeric signal (step 52), if the alphanumeric signal then stores this signal earlier, and notify the user, for example send township's sound, 20 vibrations of control electromagnetic shaker or control a light-emitting diode (not shown) and notify the user (step 52) in modes such as flickers by microprocessor 16 control loudspeaker 21.Afterwards, the user can show the alphanumeric signal with display 19 with keyboard 18 operations.If not the alphanumeric signal then judges whether to be time calibration signal (step 54), if time calibration signal time (step 55) of calibration system then.The reason that needs the calibration system time is about can be at the orthochronous received speech signal, and the delivery time and the length of correct deictic word tone signal.If neither then judge whether to be voice anticipating signal (step 56) by time calibration signal, if voice anticipating signal, then discern voice anticipating signal (step 57), and can learn type, class, the item of the analog voice signal that will be transmitted and time, length and the channel that transmits.Microprocessor 16 can determine whether according to type, class and the item that the user sets reception receiving this less important be transmitted analog voice signal (step 58), then carry out voice signal and receive flow process (step 59) if will receive.After voice signal receives flow process and will refer again to Fig. 7 and be described in more detail in.
Please refer to Fig. 6, it monitors the flow process of code signal in order to the explanation native system.At first native system is obtained synchronously with the code signal earlier, receive code signal (step 61) with the method for synchronization then, judge whether it is address signal (step 62), if whether address signal is then judged this address signal again is user's address (step 63) itself, or this address public address (step 64) whether, if this address signal is a then received signal content (step 65) of user's address itself or public address.If not, then continue to monitor the code signal.
Please refer to Fig. 7, it is in order to the flow process of explanation received speech signal, and please be simultaneously referring to figs. 1 through Fig. 3.From the voice anticipating signal as can be known with type, class, the item of the voice signal that is transmitted and time, length and the channel that transmits, if the analog voice signal that the prior setting of user will receive then carries out this voice signal and receives flow process.Do you judge phonetic warning time is up not (step 71)? that is to promptly notify the user to prepare earlier in the one slow weighing apparatus period before the voice delivery time arrives.Pre-warning time to the time, according to the early warning mode that the user sets in advance, send early warning signal (sound, vibration, flicker) (step 72), notify the user to prepare to listen to voice signal, and control display 19 shows countdown (step 73).When arriving voice during the delivery time (step 74), microprocessor 16 is promptly controlled radio frequency receiver 12 and is switched receiving channels, beginning receives analog voice signal (step 75) in asynchronous mode, process voice decryption device 13 is play it deciphering voice and is shown the still surplus time (step 76) with display 19 with loudspeaker 21 more then.
As previously mentioned, the recording belt frequency modulation subcarrier imitating voice signal paging receiving system of Fig. 2, with the Digital Signal Processing formula frequency modulation subcarrier imitating of Fig. 3 than voice signal paging receiving system, all have the function of store voice signal; The simple-type frequency modulation subcarrier imitating voice signal paging receiving system of Fig. 1 does not then have the function of store voice signal.When the user has utilized keyboard 18 to set the voice storage mode in advance (step 77), recording belt frequency modulation subcarrier imitating voice signal paging receiving system can be with voice record in recorder 22 (step 78); Digital Signal Processing formula frequency modulation subcarrier imitating voice signal paging receiving system then with voice signal after A/D converter 23 converts digital signal to, decompress through voice decompressor 24 again, be stored in the memory 17 (step 78).The voice of noting can extract for the user afterwards and repeat to listen to.If the user does not have to set in advance the words (step 77) of voice storage mode, record not then.Receive complete back (step 79) at voice signal, microprocessor 16 is controlled the receiving channels that radio frequency receiver 12 automatically switches to original code signal immediately, continues to monitor the code signal.
Please refer to Fig. 8, it extracts the flow process of storage assembly in order to explanation recording belt and Digital Signal Processing formula frequency modulation subcarrier imitating voice signal paging receiving system, and please be simultaneously referring to figs. 1 through Fig. 3.When the user behind keyboard 18 input proper passwords (step 81), display 19 can show the header (step 82) of all storage assemblies.If the user need extract alphanumeric signal (step 83), then show the content (step 84) of this alphanumeric signal.If the user need extract voice signal (step 85), the belt of then recording frequency modulation subcarrier imitating voice signal paging receiving system is to play the voice signal that is write down and show the surplus time (step 86) still from tape deck 22; Digital Signal Processing formula frequency modulation subcarrier imitating voice signal paging receiving system then is that the voice signal that will be stored in memory 17 decompresses through voice decompressor 24, plays voice again and show the surplus time (step 86) still behind A/D converter 23.Voice signal plays back (step 87), and the user can continue to extract other signals (step 88) of storage.
The present invention can be applicable to following product at least: the beep-pager with voice paging function; Personal digital aid (PDA) (PDA) with voice paging function; And notebook computer pcmcia card with voice paging function.
Though the present invention discloses as above with a preferred embodiment, it is not in order to limit the present invention.For example, this case is if design has the situation of two radio frequency receivers, and then code signal and analog voice signal can separately receive, so just must not the automatically switching channels function.Moreover analog voice signal also can receive via a plurality of channels, that is the analog voice signal of different " class " can utilize different channels to transmit and reception.
Therefore, anyly have the knack of this skill person, do not break away from the spirit and scope of the present invention, do a little change after, also should belong within protection scope of the present invention.
Claims (7)
1, a kind of frequency modulation subcarrier imitating voice signal paging receiving system comprises a receiving system, and it utilizes frequency modulated subcarrier, receives the code signal with the method for synchronization on a channel;
Receiving system comprise an antenna, radio frequency receiver that is connected with antenna, decoder that is connected with radio frequency receiver and one respectively with decoder and radio frequency receiver microprocessor linked, in order to receive described decoded code signal;
It is characterized in that, also comprise:
A voice decryption device, it connects radio frequency receiver, in order to the reception analog voice signal and to its deciphering; And
Loudspeaker, it connects described voice decryption device, plays out in order to the analog voice signal after will deciphering;
Receiving system receives an analog voice signal in asynchronous mode on one second channel.
2, frequency modulation subcarrier imitating voice signal paging receiving system according to claim 1 is characterized in that, also comprises a setting device in order to type, class and the item of the analog voice signal of setting desire reception, and it is connected with described microprocessor.
3, frequency modulation subcarrier imitating voice signal paging receiving system according to claim 2 is characterized in that described setting device is a keyboard.
4, frequency modulation subcarrier imitating voice signal paging receiving system according to claim 2, it is characterized in that, also comprise a tape deck, it connects described voice decryption device and loudspeaker, in order to the analog voice signal after reception and the record deciphering, and can be in order to the analog voice signal of replaying and being write down.
5, according to the described frequency modulation subcarrier imitating voice signal of claim 4 paging receiving system, it is characterized in that described tape deck is the belt phonographic recorder.
6, frequency modulation subcarrier imitating voice signal paging receiving system according to claim 4, it is characterized in that described tape deck comprises that one connects the A/D converter of described voice decryption device, a compress speech decompressor that connects described A/D converter and a memory that connects compress speech decompressor and microprocessor.
7, a kind of frequency modulation subcarrier imitating voice signal paging method of reseptance comprises the following steps:
Utilize frequency modulated subcarrier, on a channel, receive the code signal with the method for synchronization; It is characterized in that, when comprising the voice anticipating signal in the code signal that receives, utilize frequency modulated subcarrier, on second channel, receive analog voice signal in asynchronous mode;
The method of reseptance of code signal comprises the following steps: to judge whether it is the alphanumeric signal, if then stored and announce the user when receiving described code signal; Judge whether it is time calibration signal, if, alignment time then; Judge whether it is the voice anticipating signal, if then identify the frequency of type, class, item and delivery time, length and second channel of analog voice signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103558A CN1054721C (en) | 1996-03-11 | 1996-03-11 | Frequency modulation subcarrier imitating speech-sounds signal paging receiving system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN96103558A CN1054721C (en) | 1996-03-11 | 1996-03-11 | Frequency modulation subcarrier imitating speech-sounds signal paging receiving system and method |
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| Publication Number | Publication Date |
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| CN1159716A CN1159716A (en) | 1997-09-17 |
| CN1054721C true CN1054721C (en) | 2000-07-19 |
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| CN96103558A Expired - Fee Related CN1054721C (en) | 1996-03-11 | 1996-03-11 | Frequency modulation subcarrier imitating speech-sounds signal paging receiving system and method |
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| CN109963039A (en) * | 2019-04-22 | 2019-07-02 | 东莞市多嘴猫电子有限公司 | A kind of method of the wireless voice call system and wireless voice communication of Lora broadband communication |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994011954A1 (en) * | 1992-11-10 | 1994-05-26 | World Communication Ventures, Inc. | Fm radio system using time shared wide sca band for digital data |
| EP0688112A1 (en) * | 1994-06-15 | 1995-12-20 | Pioneer Electronic Corporation | Method of selecting other networks carrying traffic information using a radio data system receiver |
| WO1997026630A1 (en) * | 1996-01-18 | 1997-07-24 | Global Telecommunications Of Delaware, Inc. | Digital voice paging system |
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1996
- 1996-03-11 CN CN96103558A patent/CN1054721C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994011954A1 (en) * | 1992-11-10 | 1994-05-26 | World Communication Ventures, Inc. | Fm radio system using time shared wide sca band for digital data |
| EP0688112A1 (en) * | 1994-06-15 | 1995-12-20 | Pioneer Electronic Corporation | Method of selecting other networks carrying traffic information using a radio data system receiver |
| WO1997026630A1 (en) * | 1996-01-18 | 1997-07-24 | Global Telecommunications Of Delaware, Inc. | Digital voice paging system |
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| CN1159716A (en) | 1997-09-17 |
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