CN203788377U - Voice switch channel LED TV - Google Patents
Voice switch channel LED TV Download PDFInfo
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- CN203788377U CN203788377U CN201320865711.6U CN201320865711U CN203788377U CN 203788377 U CN203788377 U CN 203788377U CN 201320865711 U CN201320865711 U CN 201320865711U CN 203788377 U CN203788377 U CN 203788377U
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- voice command
- voice
- logic control
- control circuit
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Abstract
The utility model relates to the LED TV technical field, and especially relates to a voice switch channel LED TV comprising a TV housing; a tuner is arranged in the TV housing; the tuner is used for receiving a high frequency signal, demodulating video information, and replacing TV program channels; a voice control module is arranged in the TV housing, and comprises a voice instruction extraction unit, a voice instruction identification unit, and a logic control circuit; the voice instruction extraction unit and the logic control unit are respectively and electrically connected with the voice instruction identification unit; the logic control unit is electrically connected with the tuner. The utility model aims to provide the voice switch channel LED TV, so voice switch channel of the LED TV can be realized, operation is convenient, and a viewer can change the channels without moving.
Description
Technical field
The utility model relates to LED TV technology, relates in particular to a kind of voice and controls zapping LED TV.
Background technology
Speech recognition technology, its target is that the vocabulary content in the mankind's voice is converted to computer-readable input, for example button, binary coding or character string.The related field of speech recognition technology comprises: signal processing, pattern recognition, probability theory and information theory, sound generating mechanism and hearing mechanism, artificial intelligence etc.TSG410 is the speech recognition integrated circuit that a kind of function is complete, adopt CMOS large scale integrated circuit manufacture craft to manufacture, include the required whole circuit of speech recognition except SRAM, as CPU, A/D converter, ROM, speech amplifier, compressor reducer, filter, oscillator and interface circuit etc.TSG410 has dual-in-line and two kinds of packaged types of paster, can be operated under CPU control and two kinds of patterns of Artificial Control.
SRAM is static random access memory, is a kind of internal memory with static access facility, does not need refresh circuit can preserve the data of its storage inside.
LED TV refers to and adopts LED as the television set of video picture device completely.LED TV is called again LED-backlit source LCD TV, refers to the LCD TV as backlight with LED, is still a kind of of LCD.
Each programme channel signal takies finite bandwidth, by modulation technique, the signal of all channels can be met into a comprehensive signal and transmit.During TV reception, change channel and be equivalent to adjust frequency selection circuit and allow the frequency of passing through, other channel frequency ranges are filtered, and then demodulate corresponding baseband signal, demodulate the signal that is translated into video/audio and so on for follow-up.The tuning station selecting circuit of scanning station selecting circuit also claims tuner, is connected with the reception antenna of outside or the circuit of cable TV.Antenna is inserted on tuner, and what from tuner output, come has been exactly intermediate-freuqncy signal, and plays channel selection effect.
Along with television channel number object is increasing, traditional TV remote controlling method drawback is more and more obvious.It needs spectators to remember the corresponding channel of a large amount of TV stations, and often adopt button or remote controller on television housing to carry out zapping operation to TV, control mode is single, need manual operation, in the situation that remote controller can not find, button on television housing, do not have additive method to carry out zapping control to TV.
Utility model content
Goal of the invention of the present utility model is to provide a kind of voice zapping LED TV, and application the utility model can carry out voice zapping to LED TV, and easy to operate, reaching spectators is the effect of replaceable channel without walking about.
For addressing the above problem, the utility model is realized by the following technical solutions:
A kind of voice zapping LED TV, comprise television housing, in described television housing, be provided with tuner, described tuner is used for receiving high-frequency signal and demodulates video information special to TV programme replacing channel, is also provided with speech control module in described television housing.Described speech control module comprises voice command extraction unit, voice command recognition unit and logic control circuit.Described voice command extraction unit and logic control circuit are electrically connected to described voice command recognition unit respectively, and described logic control circuit and described tuner are electrically connected to.Described voice command extraction unit, for extracting operator's voice command, and is converted to the signal of telecommunication by voice command and is sent to described voice command recognition unit; Described voice command recognition unit, for receiving the described signal of telecommunication, and carries out speech recognition to the described signal of telecommunication, described signal of telecommunication dress is changed to instruction and is sent to logic control circuit; Described logic control circuit, for receiving described instruction, and carries out frequency modulation control to described tuner, finally completes zapping order.
Concrete, described voice command extraction unit comprises microphone and discharge circuit; Described microphone, discharge circuit and described voice command recognition unit are electrically connected to successively.Described voice recognition unit comprises TSG410 speech chip and nonvolatile memory SRAM; Described TSG410 speech chip and nonvolatile memory SRAM are electrically connected to; Described TSG410 speech chip is electrically connected to described discharge circuit and logic control circuit respectively.Described logic control circuit is provided with CC4514 segment number coding chip; Described CC4514 segment number coding chip is electrically connected to described TSG410 speech chip.
The utility model is provided with voice command recognition unit, for the signal of telecommunication that voice command extraction unit is sent, identify, and be amplified to certain amplitude, by logic control circuit, process, and tuner is triggered, and then realize the zapping function that LED TV controlled in voice.Easy to operate, reach spectators and without instrument, get final product the effect of zapping.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.Apparently, the accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, is not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the utility model overall structure connects block diagram;
Fig. 2 is the utility model voice command extraction unit schematic diagram;
Fig. 3 is the utility model voice command recognition unit schematic diagram;
Fig. 4 is the utility model logic control circuit schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
The present embodiment provides a kind of voice zapping LED TV, comprises television housing (not indicating in figure), is provided with tuner 10 in television housing, and tuner 10 is used for receiving high-frequency signal and demodulates video information and TV programme is changed to channel.In television housing, be also provided with speech control module.Speech control module comprises voice command extraction unit 20, voice command recognition unit 30 and logic control circuit 40.Voice command extraction unit 20 and logic control circuit 40 are electrically connected to voice command recognition unit 30 respectively, and logic control circuit 40 and tuner 10 are electrically connected to.Voice command extraction unit 20, for extracting operator's voice command, and is converted to the signal of telecommunication by voice command and is sent to voice command recognition unit 30; Voice command recognition unit 30, for receiving the described signal of telecommunication, and carries out speech recognition to the signal of telecommunication, signal of telecommunication dress is changed to instruction and is sent to logic control circuit 40; Logic control circuit 40, for receiving instruction, and carries out frequency modulation control to tuner 10, finally completes zapping order.
Voice command extraction unit 20 comprises microphone 21 and discharge circuit 22; Microphone 21, discharge circuit 22 and voice command recognition unit 30 are electrically connected to successively.Voice recognition unit 30 comprises TSG410 speech chip 31 and nonvolatile memory SRAM32; TSG410 speech chip 31 and nonvolatile memory SRAM32 are electrically connected to; TSG410 speech chip 31 is connected with logic control circuit electricity 40 with discharge circuit 22 respectively.Logic control circuit 40 is provided with CC4514 segment number coding chip 41; CC4514 segment number coding chip 41 is electrically connected to TSG410 speech chip 31.
Concrete, voice command extracts this unit 20 under TV speech and other background noise, completes and extracts operator's voice command function.Microphone 21 is selected electret microphone, have the advantages such as simple in structure, lightweight, volume is little, frequency response is wide, fidelity is good, but sensitivity is lower, must add amplifier again.Because output impedance can be up to 108 Ω number levels, so must carry out could being used in conjunction with discharge circuit 22 after impedance transformation.Discharge circuit 22 adopts differential amplifier circuit, and an electret microphone is input into end in the face of sending words person, its output to connect discharge circuit 22 forwards; Another electret microphone is back to sending words person, and its output connects discharge circuit 22 negative senses and is input into end.Because two transmitters are substantially the same far away with respect to the position of television set and other noise source, can be similar to and think that the interference being input into by the two is the same.But consider and send words with having directivity, operator's voice command that the former sends to is far longer than the latter, suitably selects each resistance value can balance out various interference.Discharge circuit 22 adopts amplifier (OP Amps MAX495 single power supply+2.7V
-+ 6V).
Voice recognition unit 30 is mainly comprised of TSG410 speech chip 31 and nonvolatile memory SRAM32.The response time representative value of TSG410 speech chip 31 speech recognitions is 300ms, and no longer than 600ms, identification capacity is large, can identify at most 40 fields, and segmented mode is flexible.
Number extended mode dealing with various requirements, also can adopt the way that allows TSG410 speech chip 31 be operated in CPU control mode.The capacity of now identifying is not limited by 40 fields, but need to increase single-chip microcomputer (as 8031), is used as to control.
TSG410 speech chip 31, by output recognition result, must carry out after necessary decoding, just can be used for controlling logic control circuit 40 below.When logic control circuit adopts electronic switching circuit 42 simulating hand button, must consider the time interval exercise question between switch connection time and two buttons, in case the generation of stop signal loss and " string key ", " and key " phenomenon.Generally, all the time of key mapping run-downs is less than 10～20ms, and the shortest time that staff touches button is also more than 100ms, and therefore, after arbitrary button is pressed, having Multiple-Scan signal passes through, and does not have dropout exercise question.So-called " string key " refers to after a key is pressed, and then presses again another key; " and key " is to press two keys simultaneously.These the two kinds wrong basic reasons that occur of handling are: the control instruction encoding far away of each button needs certain hour ability battery has fired (generally in 100ms left and right), so answer idea to eliminate.Difficult point when this is our design logic control circuit, adopts pulse stretching 43 (> 40ms) and pulse delay circuit 44 (> 120ms) to solve.
During use, the program of operator Xiang Kan XX TV station, as long as send the order of " XX platform ", television set jumps to this automatically.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The modification of doing within any spirit at above-mentioned execution mode and principle, be equal to and replace and improvement etc., within all should being included in the protection range of this technical scheme.
Claims (4)
1. a voice zapping LED TV, comprises television housing, in described television housing, is provided with tuner, and described tuner is used for receiving high-frequency signal and demodulates video information and TV programme is changed to channel, it is characterized in that:
In described television housing, be provided with speech control module;
Described speech control module comprises voice command extraction unit, voice command recognition unit and logic control circuit;
Described voice command extraction unit and logic control circuit are electrically connected to described voice command recognition unit respectively;
Described logic control circuit and described tuner are electrically connected to;
Described voice command extraction unit, for extracting operator's voice command, and is converted to the signal of telecommunication by voice command and is sent to described voice command recognition unit;
Described voice command recognition unit, for receiving the described signal of telecommunication, and carries out speech recognition to the described signal of telecommunication, described signal of telecommunication dress is changed to instruction and is sent to logic control circuit;
Described logic control circuit, for receiving described instruction, and carries out frequency modulation control to described tuner.
2. a kind of voice zapping LED TV according to claim 1, is characterized in that:
Described voice command extraction unit comprises microphone and discharge circuit;
Described microphone, discharge circuit and described voice command recognition unit are electrically connected to successively.
3. a kind of voice zapping LED TV according to claim 2, is characterized in that:
Described voice recognition unit comprises TSG410 speech chip and nonvolatile memory SRAM;
Described TSG410 speech chip and nonvolatile memory SRAM are electrically connected to;
Described TSG410 speech chip is electrically connected to described discharge circuit and logic control circuit respectively.
4. a kind of voice zapping LED TV according to claim 3, is characterized in that:
Described logic control circuit is provided with CC4514 segment number coding chip;
Described CC4514 segment number coding chip is electrically connected to described TSG410 speech chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865711.6U CN203788377U (en) | 2013-12-25 | 2013-12-25 | Voice switch channel LED TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865711.6U CN203788377U (en) | 2013-12-25 | 2013-12-25 | Voice switch channel LED TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203788377U true CN203788377U (en) | 2014-08-20 |
Family
ID=51324528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865711.6U Expired - Fee Related CN203788377U (en) | 2013-12-25 | 2013-12-25 | Voice switch channel LED TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203788377U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106878785A (en) * | 2017-02-17 | 2017-06-20 | 昆山康佳电子有限公司 | A kind of TV with acoustic control program guide |
| WO2017120901A1 (en) * | 2016-01-15 | 2017-07-20 | 常平 | Voice-based television channel switching method and voice-controlled television |
| WO2017120899A1 (en) * | 2016-01-15 | 2017-07-20 | 常平 | Data collecting method for voice-activated television channel switching technique and voice-controlled television |
-
2013
- 2013-12-25 CN CN201320865711.6U patent/CN203788377U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017120901A1 (en) * | 2016-01-15 | 2017-07-20 | 常平 | Voice-based television channel switching method and voice-controlled television |
| WO2017120899A1 (en) * | 2016-01-15 | 2017-07-20 | 常平 | Data collecting method for voice-activated television channel switching technique and voice-controlled television |
| CN106878785A (en) * | 2017-02-17 | 2017-06-20 | 昆山康佳电子有限公司 | A kind of TV with acoustic control program guide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |