CN1482788A - Novel method for implementing intercommunion by character in telephone system - Google Patents

Abstract

The invention discloses a method for realizing words exchange in the telephone system, wherein the speech recognition is realized by a words circuit, a words-voice conversion circuit, a display module and a microcontroller, the circuit 10 is used for converting voice in the telephone reception channel into words, the circuit 20 is used to transform the words content to be expressed into voice and transmit it to the telephone transmitting channel, the module 40 is used to display the words in circuit 10 and the words to be sent by the local telephone set, the microcontroller 30 is used to control the circuit 10, 20 and 40. The method by the invention can be applied to the phone calls between the blinds and deaf, or between the blinds and deaf and the normal people.

Description

In a kind of new realization telephone system with the method for written communication

Technical field

The present invention relates to a kind of method that realizes written communication, relate in particular to a kind of method of using written communication in the telephone system that is implemented in, belong to communication technical field.

Technical background

Present telephone set comprises mobile phone, and a lot of bands show, but they all can not be presented at the other side's speech content on square phone set display.If not to telecommunication department application SMS (Short Message Service), then can not show the word content that to pass on to the other side, and word content is sent.This has just produced qualification to the phone user: 1, speechless deaf-mute can't use; 2, only think that wirtiting gives the other side, the people who does not look on the bright side of things mouthful can not use.

For this reason, mobile phone and landline telephone have had new business: SMS (Short Message Service), realize by increasing the short message service facility on the network operation platform, the user can import the word content that will express earlier like this, send then,, on its display screen, show receiving this content.This mode has solved the purpose of only using literal expression, and also available this of deaf-mute reaches the purpose of use, but its limitation is: 1, telephone office increases operation cost; 2, the user will rely on telecommunication department and open this business, regularly pays dues; 3, if between landline telephone, send short message, the then equal important affair first to file of phone both sides, and their telephone plant all will possess this function.4, do not realize the other side's speech content is presented at function on square phone display.5, can only pass through keyboard input characters short message.

Video telephone can make the deaf-mute use easily, what its limitation was that it transmits in telephone channel is image encoding and voice, if pass literal, literal to be transmitted as piece image, its limitation also is, the voice that plain old telephone can not be transmitted become literal and show, and the deaf-mute can not take on the telephone with it and ordinary people.

Facsimile machine, modulator-demodulator can be realized the literal transmission, and their limitation is that what transmit is not voice in telephone channel, be certain coding, can not take on the telephone with plain old telephone.

Summary of the invention

Purpose of the present invention, method with written communication is provided to provide in a kind of new realization telephone system, make between the telephone subscriber and can send, receive word content mutually, and need not apply for short message service, making the voice content that receives in the phone can be identified as literal shows, and what transmit in the telephone channel is voice itself all the time, is not certain coding.And realized in the telephone relation loop that the present invention will not take into account by this voice channel separation problem because phone sends with being separated in of voice channel of reception.The solution of the present invention is: utilize the circuit of speech recognition for literal, the speech conversion that phone is received in the path becomes literal, utilize the circuit of text conversion for voice, the word content that desire is expressed is converted to voice, send in the phone transmission path, display module, with speech recognition is that the literal of literal circuit shows, also the literal that phone directory machine desire is sent shows, microcontroller (MCU) is a literal circuit to speech recognition, text conversion is that sound circuit and display module are controlled, they are combined realize use in the telephone system voice transfer literal and be the literal demonstration, the purpose that exchanges speech conversion.Wherein the desire word content of expressing except that importing with other method, can be sent into voice by a microphone (being microphone), is literal circuit through speech recognition, is pre-existing in the phone directory machine after being converted to literal.Wherein microcontroller (MCU) is that a single-chip microcomputer and peripheral circuit thereof constitute as memory, I/O port expansion circuit etc.During circuit wherein constituted, display module and microcontroller (MCU) were circuit that telephone set may comprise, and the microphone that send expression content can be the microphone of giving orders or instructions of telephone set.Speech recognition is that literal circuit, text conversion are sound circuit, is the circuit that this method increased newly.

Advantage of the present invention is, method with written communication is provided in a kind of new realization telephone system, do not need telephone office side to change or increase any equipment, just can make between the telephone subscriber and send, receive word content mutually, make between two telephone sets and can freely send character message, make between the deaf-mute and can take on the telephone in the written communication mode.Use this method, what transmit in the telephone channel is voice all the time, and uses other transmission method, and what transmit in the telephone channel is a kind of coding, rather than voice itself.Need not apply for short message service, make the user not need to pay dues to telecommunication department.Use the method, the speech of normal person in phone can identify by method of the present invention, and be presented on recipient's the phone display, the literal that the deaf-mute sends can become voice, allow the other side's the normal person of use ordinary telephone set hear, thereby make the method for utilizing this invention a side phone can with existing ordinary telephone set or mobile phone communication, making takes on the telephone between deaf-mute and the normal person becomes possibility.Use the phonetic entry word content function in this invention, the literal that desire is expressed can be imported without keyboard, makes the normal person directly import word content to be sent with voice, and is faster with the keyboard input.

Description of drawings

Accompanying drawing 1 is a circuit block diagram of the present invention.

Accompanying drawing 2 is embodiment of the invention circuit theory schematic diagrames.

Embodiment

In a kind of new realization telephone system of the present invention with the method for written communication, it mainly is in the talking path of the telephone set of band display screen, increasing speech recognition is literal circuit 10, text conversion is a sound circuit 20, if the Main Processor Unit in the original call machine is not finished by microcontroller (MCU), then also need increase microcontroller (MCU) 30, that is as shown in Figure 1, display module 40 and microcontroller (MCU) 30 were the circuit that telephone set may comprise during the circuit of this method constituted, speech recognition is a literal circuit 10, text conversion is a sound circuit 20, is the circuit that this method increased newly.Wherein speech recognition is the receive path interface in literal circuit 10 and telephone relation loop, be among Fig. 11〉connected mode, speech conversion be behind the literal under MCU 30 control, literal is sent to display module 40 and shows, text conversion is the sendaisle interface in sound circuit 20 and telephone relation loop, the user pre-deposits, or the literal of sending into via telephone keyboard, under the control of MCU 30, being sent to display module 40 shows, the user confirms that the back may command sends to it in the talking path sendaisle, and when MCU 30 control display modules 40 show the literal that voice identify, and when show the literal that this machine user send.

When implementing telephone set of the present invention, select among Fig. 12 for use not in talking state〉connected mode, by the control of MCU 30, the user can send into one section word facing to microphone with voice, after circuit 10 is identified as literal, be stored in this machine, as the content that sends after treating.

Implement telephone set of the present invention, can in telephone keyboard, increase a button, be used for after this telephone set is received a call and off-hook, send a fixing greeting, give the other side as " feed hello ", to inform the information of this machine of the other side off-hook.

Detailed circuit of the present invention can cooperate the electric principle schematic referring to Fig. 2, and conventional periphery circuit of its chips such as power supply, crystal oscillator, reset circuit etc. all do not draw.Wherein speech recognition integrated circuit U9 (model is MSM6679AL-110) and external memory storage SRAM U4 (model is IS61C256AH) thereof, FLASH U5 (model is IS28F010) and NAND gate U10 (model 74ALS01) circuit are realized the function of speech recognition circuit 10; Text-to-speech integrated circuit U12 (model is WTS701) realizes the function of text-to-speech circuit 20; Display module 40 comprises liquid crystal control and a drive integrated circult U11 (model is HD44780) and a LCDs (LCD); MCU 30 is by 8031 single-chip microcomputer U1 and its peripheral U2 (model is 74LS373), U3 (74LS138), U6 (27512), U7 (IS61C256AH), U8 (74LS245), and switch S 1 is formed at interior circuit.U7 is a data storage, and U6 is a program storage, and U3 is a decoder, and U8 is a bus driver, the address information of each circuit that U1 provides by decoder, and each circuit of gating is realized control.With the interface circuit of telephone set mainly be telephone set talking path partial circuit, diverter switch S2 is used for realizing Fig. 11〉with 2〉the path functions of switching.

Wherein, the function that U9 (MSM6679AL-110) integrated circuit can be realized comprises speech recognition, record, playback, and speech-sound synthesizing function, and include processor, can programme separately.In these embodiments of the invention, without the speech-sound synthesizing function of U9, its processor that includes can be programmed separately, and it is by the RS-232C serial line interface, i.e. RXD, TXD link to each other with U1 (8031) among this machine MCU 30 and by its control.Two kinds of patterns of speech recognition that the speech identifying function that this circuit is realized has the speech recognition that depends on the talker and do not rely on the talker.The first feature templates of the language that can be identified is predeterminable in chip, or exists among external SRAM or the FLASH.The user uses and depends on the speaker recognition mode, can improve the accuracy of identification, and prerecord talker's phonetic feature template with sound-recording function and store this moment.From the voice of telephone set receive path receiver output, by entering phonetic entry mouth ADC0～ADC7 of U9 behind the analog interface circuit filter shape, the VREF of U9, AGND are analog signal reference voltage and reference ground lead-out wire.Identified character code is sent in the MCU 30 circuit data memories through RS-232C.The storable voice vocabulary that is identified of this integrated circuit is limited, when actual realization is of the present invention, can select the abundant integrated circuit of other vocabulary for use.

Wherein, U12 (WTS701) integrated circuit realizes that the text conversion with input is the function of voice output, includes processor.In these embodiments of the invention, its processor that includes is by the SPI serial line interface, and promptly the SPI serial line interface of being made up of 14 pin MOSI, 6 pin MISO, 16 pin SCLK, 26 pin R/B is controlled by U1 (8031) among this machine MCU 30.Its speech output signal is delivered to display module 40 circuit simultaneously and is shown through the transmission microphone importation that SP+, SP-are sent to the telephone set talking path.

Wherein, LCDs in the display module 40 (LCD) character display is 8 characters, 2 row, U11 (HD44780) is may command and the character-type liquid crystal display module that includes literal pool that drives this LCD, it receives the coding of literal under the U1 control in MCU 30, in the literal pool that includes, find corresponding reveal codes, deliver on the LCD and show.

Wherein, microcontroller (MCU) 30 by 8031 and peripheral circuit constitute.8031 is the type of Intel MCS-51 series monolithic, and the band oscillator has 21 special registers, 31 I/O lines, 5 interrupt sources, 1 full duplex serial port, need outside extended menory to be used for stored program and data, in the embodiment of the invention, also need outside expansion I/O mouth.Wherein, the memory of expansion is U6:27512 (EPROM), the U7:IS61C256AH (SRAM) among Fig. 2.Wherein, the circuit of expansion I/O mouth usefulness is 74 series, 373,245,138 chip circuits.Wherein S1 is a key switch, be used for this dynamo-electric receiver off-book of the present invention after, send fixedly greeting " feed hello ".After button S1 pressed, U1 just accessed this fixing language that keeps already from data storage, deliver to U12, is sent on phone transmission and the telephone wire again.

Actual enforcement when of the present invention, above each several part can be selected other similar chip according to actual needs else, perhaps with integrated mode the circuit of each functional circuit of the present invention and original telephone set is carried out different combinations, forms new integrated circuit.

Detailed action situation of the present invention is: when the user connects phone, behind the talking path and this machine transmission Signal Separation of the other side's voice by telephone set, the speech recognition circuit 10 of this machine of entering, the character code that identifies is through the RS-232C of circuit 10 interface notice U1, U1 accesses character code, delivers to the U11 circuit of display module 40, and the reveal codes with these character codes in its character library finds, deliver to inner LCD control and drive circuit, deliver on the LCD then and show.During call, therefore the sound that the callee replys can show on the display screen of this machine, and calling party can judge that phone has been switched on, and the callee can not talk or when not wanting to talk, can send the replying of " feed hello " by the S1 key, inform this machine of the other side off-hook with this to the other side.When this machine user will send information, these information can be the word contents that he has existed the desire in the local memory to express in advance, it also can be the content of expressing by the desire of the instant input of telephone keyboard by the mode of similar mobile phone input characters, these literal are sent to display module 40 circuit by MCU 30 controls, on LCD, show after searching reveal codes, the user confirms that errorless back sends by Keyboard Control, character code is admitted among the U12 by the SPI interface, be converted to voice, after deliver in the sendaisle of telephone set talking path and be sent out away.So back and forth, the user has reached the purpose that exchanges with phone the other side with literal.Obviously, if the other side's phone has also used method of the present invention, then both sides' word content is all sent to the other side with voice mode, the other side all can receive by the speech recognition mode, be presented on the phone display of oneself after being converted to character code, both sides all exchange with the other side with literal, have realized the function that present Wordn short message passes mutually.

Among this embodiment of the present invention, at S2 switch and 2〉when passage was connected, this machine was desired expression content and can be sent into by this machine microphone.Be specially: the voice that this machine microphone is sent into are admitted in the circuit 10, be identified as literal after, send in the memory of MCU 30 circuit, literal is accessed and is delivered in the circuit 20 when to be sent, is converted to voice after the telephone set sendaisle sends.

Method of the present invention is a kind of short-cut method of realizing using on the telephone wire written communication.

Claims (2)

1. One kind to add speech recognition in telephone system be literal, with text conversion be sound circuit, realize using in the telephone system the new method of written communication, it is characterized in that: utilize the circuit of speech recognition for literal, the speech conversion that phone is received in the path becomes literal, utilize the circuit of text conversion for voice, the word content that desire is expressed is converted to voice, send in the phone transmission path, display module, with speech recognition is that the literal of literal circuit shows, also the literal that phone directory machine desire is sent shows, and microcontroller (MCU) is a literal circuit to speech recognition, text conversion is that voice and display module are controlled, and they is combined realize using the voice transfer literal in the telephone system, with be that literal shows with speech conversion, the purpose that exchanges.
2. 2. press in the described a kind of new realization telephone system of claim 1 method with written communication, it is characterized in that: in this method, the word content that desire is expressed is except that importing with other method, can send into voice by a microphone (being microphone), through speech recognition is literal circuit, is pre-existing in the phone directory machine after being converted to literal.

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