KR20000067091A - Method and system for operating a portable phone by voice recognition technique - Google Patents

Abstract

PURPOSE: A method for operating voice recognition of a cellular phone, is provided to recognize input key values for operating the cellular phone in a voice by using a voice recognizing technology, to dial to a corresponding telephone number, and to have functions of incoming/originating call speech and call connection. So that power consumption be reduced by a selective operation of a voice recognizing processor and driving obstruction and accidents due to a key operation during driving be prevented by unconditionally operating the voice recognizing processor when external power is used. CONSTITUTION: When an instruction of power-on is recognized in a voice, a receiving standby state is converted to an originating standby state. When a speech instruction is recognized in a voice during bell ringing, the receiving standby state is converted to a busy state. When a telephone number consecutively inputted within a predetermined time and a send-instruction are recognized in a voice, the telephone number is dialed and an originating standby state is converted to a busy state. When a speech stop instruction is recognized, speech is ended and a standby state is converted to a receiving standby state.

Description

Method and system for operating a portable phone by voice recognition technique

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and to a voice recognition operation method and a system of a mobile phone capable of dialing, making incoming and outgoing calls by voice commands.

In the case of a general mobile phone or car phone, if you want to make a call while the power is on, open the cover switch of the mobile phone or pick up the handset of the car phone to make the call waiting state, and then enter the phone number of the party you want to call. You must dial and press the SEND button to dial and make a call. In addition, even if you want to answer the incoming call in the reception standby state, the call is possible only by opening the cover switch or pressing the send button. In addition, if the wrong number to be dialed is entered, the error inputted telephone number must be deleted by pressing the CLEAR button.

Thus, using the hands and eyes to open the cover switch or check the input button, and the operation method of pressing the button, there is a problem that can cause a safety accident when the user is driving. In addition, there is a significant inconvenience in using a mobile phone when doing other work by hand or in the case of a user with hand or eye disorder.

Accordingly, the present invention has been made to solve the above problems, by using a voice recognition technology to recognize the input key value, such as a simple command and phone number for mobile phone operation by dialing the phone number and incoming and outgoing calls It is to provide a voice recognition operation method and system of a mobile phone having a call and call cutting function.

It is also an object of the present invention to provide a voice recognition operation method and system for a mobile phone having a function of deleting a wrong number or an error recognized telephone number by a voice command.

In addition, the present invention is to provide a mobile phone that can reduce the power consumption by selectively determining the operation of the voice recognition processor according to the type of power consumption to be used.

The present invention for achieving the above object is (a) in the standby standby state, when the power-on command to recognize the voice when switching to the call waiting state, and when the voice command is recognized while the ringing is detected voice call Switching to a heavy state; (b) in a call waiting state, dialing the phone number and switching to a busy state when voice recognition of a phone number and a send command that are continuously input within a predetermined time; And (c) in the busy state, when the call stop command is recognized, ending the call and switching to the reception standby state.

The present invention for achieving the above another object is a voice recognition to recognize the input voice by measuring the similarity of the input pattern and the predetermined reference pattern obtained by extracting feature parameters from the voice signal including the input voice command and phone number A processor; Logically combining an output signal value of the handset key input unit or an output signal value of the cover switch that is connected to the voice recognition processor, the handset key input unit and the cover switch and has the same function as the signal value recognized by the voice recognition processor. An interface unit; And a controller for controlling the overall operation of the mobile phone related to storing and deleting the recognized telephone number, dialing of the telephone number, starting a call, and ending a call according to the combination signal provided from the interface unit.

The present invention for achieving the above another object is a hand-friquette embedded with a voice recognition processor for recognizing a voice command and a phone number input through a microphone, and the hand-requested wired and wireless connection to the recognized voice command And a handset for receiving a telephone number and performing a corresponding operation related to telephone number dialing, call initiation, and call termination according to a corresponding command.

1 is a mobile phone system configuration of the present invention.

Figure 2 is a state diagram according to the voice recognition operation method of the mobile phone of the present invention.

Figure 3 is a flow chart according to the voice recognition operation method of the mobile phone of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: control unit 150: speech recognition processor

160: handset key input unit 170: cover switch

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. A typical mobile phone is largely composed of a transmitter, a receiver, a logic unit, an antenna unit, a display unit, and a power supply unit. The present invention further includes a voice recognition processor in an existing mobile phone system, thereby enabling various types of voice recognition without changing the existing system. To manipulate the operation of.

1 is a block diagram of a mobile phone system of the present invention.

The control unit 100 is connected to the reception signal processing unit 110, the transmission signal processing unit 120, the power supply unit 130, the memory unit 140, and the interface unit 180, and controls the overall operation of the mobile phone.

The reception signal processor 110 is controlled by the controller 100 and receives and demodulates a radio signal from an antenna (not shown). The demodulated signal is output as an audio signal through the handset 111. The transmission signal processing unit 120 is controlled by the control unit 100 and modulates a voice signal coming from the transmitter 121 into a radio signal and transmits it through an antenna.

The power supply unit 130 may be supplied from an internal battery power source of the handset or an external power source of the hand frit, and supply power to each part under the control of the controller 100. The memory unit 140 includes a nonvolatile / volatile memory for temporarily storing various data generated by storing the main processing program of the controller 100 and processing the main processing program.

The interface unit 180 is connected to the voice recognition processor 150, the handset key input unit 160, and the cover switch 170, and logically combines the output signals of the 150, 160, and 170 to the controller 100. The logical combination relationship is provided by a logical sum or logical product operation of the output signal value of the handset key input unit or the output signal value of the cover switch having the same function as the signal value recognized by the speech recognition processor, thereby providing the control unit to press the corresponding button. Or when the command or number is pronounced, the control unit provided with the corresponding output signal performs the same operation.

The speech recognition processor 150 uses a known speech recognition algorithm that extracts a feature parameter from the talker 121 in a time domain or a frequency domain, and a corresponding speech signal (eg, a voice command (power-on, stop-clear). , Send, call, call stop), voice handset key value (number, symbol)).

The speech recognition processor 150 may be implemented in software or hardware. Although not implemented in hardware, the voice recognition processor 150 extracts a first memory storing a reference pattern (voice command, handset key value), and various parameters of a voice input through the transmitter 121. And a processor configured to recognize the input voice by measuring the similarity between the input pattern and the preset reference pattern (a type of pattern matching) and a second memory for temporarily storing the voice recognized by the processor.

On the other hand, in the preferred embodiment, the reference pattern construction can be a database in the speaker-dependent and speaker-independent manner. In the case of speaker dependent method, voice command, phone number, shop (#), star (*), etc. are pronounced by the user's own voice, and the reference pattern of personal voice is stored in memory such as EEPROM. In case of using mobile phone, the accuracy of voice recognition is more than 90%. In the speaker-independent mode, a mobile phone can be manufactured by storing voice commands, phone numbers, and average patterns of shops (#) and stars (*) in advance in memory.

Power supply of the voice recognition processor 150 may be provided through the interface 180 under the control of the control unit 100, the power of the power supply unit 130 as described above.

Meanwhile, in another embodiment, the voice recognition processor 150 may be driven by directly receiving an internal battery power source or an external power source. When using the internal battery power supply, selector switch for voice dialing is used to connect or disconnect the internal battery power of the handset. This has the effect of minimizing the light weight of mobile phones and minimizing the power consumption due to the voice recognition processor for long battery life.

In addition, in the case of using an external power source such as a vehicle battery or the like, the power is supplied to the voice recognition processor at the moment when the handset is plugged into the handsets. This is because the external power supply has not only enough power, but also requires the voice recognition dial function when driving the vehicle. Therefore, even when the external power supply is not used, the external power supply should be activated immediately. By being driven according to the on / off control of can be convenient to the user.

A method of operating a mobile phone by voice recognition will be described with reference to FIGS. 2 and 3. 2 is a state diagram according to the voice recognition operation method of the mobile phone of the present invention, Figure 3 is a flow chart according to the voice recognition operation method of the mobile phone of the present invention.

Referring to Figure 2, it shows a process of transition to another state according to the user's voice in any one of five states that may occur when the mobile phone operating. What is indicated by a dotted line is an operation made by a conventional button input operation, and what is indicated by a solid line is an operation made by a voice input of the present invention. It should be noted that the words used in the speech recognition terminology cannot be used in normal conversation contents, and should use terms that are popular in speech recognition sampling and should be easily remembered by anyone.

Now, description of each state is as follows.

① In the reception standby state, open the cover switch of the mobile phone, the operation state of the mobile phone becomes the transmission standby state. Even if the cover switch is not opened in this way, a voice “power on” voice command makes a transition to the call waiting state. The term "power-on" is different from the term power (PWR), which means you have to power on your phone. In other words, the "power on" command is a command for making a call while the mobile phone is turned on.

② In call waiting mode, press the desired phone number and press <SEND> button to make a call. Instead, when you want to make a voice call, you can enter the number you want within a certain period of time: "1", "1", "2", "3", "3", "4", "4", "5", "o", "6", "6", "7", "7", "8", "8", "9", "9", "0", "ball", "* After saying "star" and "#" using the terms "shop" and then saying "send", the mode changes to the playback mode. At this time, in the playback mode, the recognized and stored phone numbers are reproduced and output again to be approved by the user. If the speech recognition processor correctly recognizes the input voice and speaks the "send" command, the authorized telephone number is dialed to transition to the call state. If the speech recognition processor fails the speech recognition and speaks a "stop clear" command, it transitions back to the call waiting state.

③ In the call waiting state, normally, if the bell rings, open the cover of the mobile phone to make a call. If the bell rings when the cover of the mobile phone is open, press the <SEND> button to make a call. Instead, in order to transition to the voice state by voice, when the ringing is detected in the reception standby state, the state transitions to the ringing state, and when the "call" command is transferred to the call state. That is, you can only transfer to a call state when you say "call" while the bell is ringing. It doesn't matter if the phone's cover is open or closed.

④ In the call mode, when you want to end the call, you should press the <END> button. Instead, a voice "command stop" command ends the call and returns to the call-waiting state.

⑤ If you press the wrong number, you can press <CLEAR> button briefly for a short time. If you press the button for a short time, only some numbers will be erased. Instead, if you say the phone number wrongly when you recognize the voice, or if you need to delete the voice when it is recognized as an error, and then try to call again, the command "STOP CLEAR" will be spoken. Your phone number will be recognized.

Referring to FIG. 3, it is assumed that the voice recognition switch 150 is turned on when the internal battery power is used or the external power source is operated.

First, in the reception standby state of step 300, the control unit 100 of FIG. 1 detects an incoming control signal entered through the reception signal processing unit 110 and outputs a ringing signal. At this time, in step 311, the controller 100 checks whether the voice recognition processor 150 recognizes the voice input through the talker 121 as a "call". Here, the recognition result signal of the voice recognition processor 150 is transmitted to the control unit 100 through the interface unit 180, the interface unit 180 logically multiplies the ringing detection signal and the "call" voice recognition pulse value The calculation is provided to the control unit 100.

If it is not recognized as a "call" to perform the operation according to the control program (320), if recognized as a "call" provides a call service as known (312).

In step 313, the controller 100 checks whether the voice recognition processor 150 recognizes the input voice as "call stop." If it is recognized as a "call stop", the call is terminated in step 314 and the call enters the standby mode again.

On the other hand, when the incoming call ringing is not detected at the reception standby state in steps 300 and 310, the control unit 100 checks whether the voice recognition processor 150 recognizes the input voice as "power on" in step 330. Here, the recognition result signal of the voice recognition processor 150 is transmitted to the control unit 100 through the interface unit 180, the interface unit 180 is the output pulse value of the cover switch 170 and the "power-on" voice The OR is calculated and provided to the controller 100.

If it is not recognized as "powered on" in step 320 performs a corresponding operation according to the control program. If it is recognized as "Power On", in step 331, the controller 100 checks whether the voice recognition processor 150 recognizes the input voice as an Arabic numeral as a telephone number. If it is not a number, step 331 is performed again. If it is a number, the voice-recognized telephone number is stored in a memory.

In operation 332, the controller 100 determines whether the voice recognition processor 150 recognizes the input voice as “stop clear” (333).

If it is recognized as "Stop Clear", even if the phone number is pronounced one by one and stored one by one, it is judged that the user pronounced the wrong number. Reenter the first number.

If it is not recognized as "stop clear", the controller 100 checks whether the voice recognition processor 150 recognizes the input voice as "send" (334). If it is not recognized as a "send" to step 320 to perform the operation. On the other hand, if it is recognized as a "send", in step 335, the control unit 100 reads the telephone number stored in the memory, reproduces it by voice, and outputs it.

In another embodiment, for example, if you were to call Seoul Area Code 02, 700 at 7000, you had to dial "Gong Chil Gong Chi Chi Gong Public Send", but you would mistakenly call "Gong Gong Gong Public." When it is called "Eichong Public Send", the speech recognition processor 150 should remove the term "e" and recognize only numbers.

In operation 336, the controller 100 determines whether the voice recognition processor 150 recognizes the input voice as “send”. If it is not "send", the voice recognition processor 150 determines that the telephone number is erroneously recognized and enters step 331 to receive the input again. If it is recognized as a "send", the telephone number recognized in step 337 is determined to be correct, and the authorized telephone number is dialed. Here, the recognition result signal of the voice recognition processor 150 is transmitted to the control unit 100 through the interface unit 180, the interface unit 180 and the <send> button output pulse value of the handset key input unit 160 and By performing the OR operation on the "send" speech recognition pulse value, the same operation is performed in both cases.

Then, a channel is established by receiving a channel assignment while exchanging a signal between the radio base station and the called terminal according to a conventional call setup protocol. At this time, in step 338, the controller 100 determines whether the call connection is successful, and if not, performs the step 320.

In step 338, if the call connection is successful, the controller 100 enters step 339 to perform a call service. During the call service, the controller 100 checks whether the voice recognition processor 150 recognizes the input voice as a "call stop". If it is recognized as "call stop", the control unit 100 terminates the call in step 341, performs a normal call release procedure with the radio base station, and enters the reception standby state of step 300 again.

In another embodiment, it may be implemented by embedding a voice recognition processor for performing a voice recognition function in the hand frit.

If the voice command or phone number inputted through the microphone of the handfriquette is recognized by the built-in voice recognition processor, the recognized voice command and the telephone number signal value are transferred through the connector (interface) between the handset and the handset. Provided to the control unit of the handset by wire (wireless). The configuration and operation of the voice recognition processor embedded in the hand frit and the operation of the mobile phone by the control unit of the handset will be operated according to the corresponding voice command or phone number, as described with reference to FIGS. 1, 2 and 3 above. The detailed description is omitted.

Mobile phone operation through the simple voice command as described above can reduce the inconvenience of the user when using the mobile phone while driving the vehicle or dialing quickly without normally pressing the button of the mobile phone or when the blind makes a call.

As described above, the present invention further includes a voice processor and an interface circuit that implements a simple logic operation in an existing mobile phone system (handset and / or hand fret), thereby operating a mobile phone by voice without changing the existing circuit. This may be possible.

In addition, according to the present invention, when the power consumption used according to the trend of miniaturization of a mobile phone is an internal battery of a handset, the power consumption can be reduced by selectively selecting the operation of a voice recognition processor, and when the external power supply is plugged into a hand plate. By operating the voice recognition processor unconditionally can prevent driving or accidents caused by the operation of the mobile phone keys while driving the vehicle.

Furthermore, the present invention can be applied to a general household telephone or a public telephone.

Claims (15)

(a) in the receiving standby state, switching to the call waiting state when the voice-on command is recognized by the voice, and switching to the busy state when the voice command is recognized during the ringing detection; (b) in a call waiting state, dialing the phone number and switching to a busy state when voice recognition of a phone number and a send command that are continuously input within a predetermined time; And and (c) in the busy state, when the call stop command is recognized, ending the call and switching to the reception standby state. The method of claim 1, further comprising: switching to the standby mode again when the stop clear command is recognized in step (b). According to claim 1, wherein step (b), Recognizing and storing the entire telephone number, and reproducing and outputting the stored telephone number; Determining that an error has occurred in the inputted phone number after reproducing the output and recognizing the stop clear command, and deleting the entire stored phone number and switching back to the call waiting state; And And recognizing the send command after reproducing and outputting the dialed call to the stored phone number. The voice recognition processor according to claim 1, wherein when the power consumption of the voice recognition processor performing steps (a) to (c) is used as an internal power source, the voice recognition processor is turned on or off according to an output signal of the voice dialing on / off switch. Voice recognition operation method of the mobile phone, characterized in that for controlling the operation. The mobile phone according to claim 1, wherein the mobile phone comprises driving the voice recognition processor when the power consumption of the voice recognition processor performing the steps (a) to (c) is used as an external power source of the hand frit. Voice recognition operation method. The method of claim 1, wherein the reference voice pattern stored in the voice recognition processor performing steps (a) to (c) is registered by receiving a corresponding voice command, a phone number, and a symbol as a user's voice. Voice recognition operation method of mobile phone. The method of claim 1, wherein the reference voice pattern stored in the voice recognition processor performing steps (a) to (c) is a corresponding voice command, number and symbol obtained by average pronunciation of several people. Voice recognition operation method. A speech recognition processor for recognizing the input speech by measuring a similarity between the input pattern obtained by extracting feature parameters from a speech signal including an input speech command and a telephone number and a preset reference pattern; Logically combining an output signal value of the handset key input unit or an output signal value of the cover switch that is connected to the voice recognition processor, the handset key input unit and the cover switch and has the same function as the signal value recognized by the voice recognition processor. An interface unit; A control unit for controlling the overall operation of the mobile phone associated with the storage and deletion of the recognized phone number, the dialing of the phone number, the start of the call, and the end of the call according to the combination signal provided from the interface unit. Voice recognition system. The voice recognition system of claim 8, wherein the voice recognition processor is driven by selectively receiving internal battery power by an on / off operation of a selection switch. The voice recognition system of claim 8, wherein the voice recognition processor is driven by power supplied from an external power source supplied through the hand frit. The voice recognition system of claim 8, wherein the voice recognition processor comprises a memory storing a reference pattern generated by receiving a voice command and a phone number as a voice of a user. The voice recognition system of claim 8, wherein the voice recognition processor comprises a memory storing a reference pattern generated by a corresponding voice command and a phone number acquired by the average pronunciation of several people. A hand-friquette that includes a voice recognition processor for recognizing a voice command and a phone number input through a microphone, and a wired / wireless communication with the hand-friquette to communicate with each other, and a voice command and a phone recognized by the voice recognition processor. A voice recognition system comprising a handset provided with a number and performing a corresponding operation related to telephone number dialing, call initiation and call termination according to a corresponding command. The voice recognition system of claim 13, wherein the voice recognition processor comprises a memory storing a reference pattern generated by receiving a corresponding voice command and a phone number as a voice of a user. The voice recognition system of claim 13, wherein the voice recognition processor comprises a memory storing a reference pattern generated by a corresponding voice command and a phone number acquired by the average pronunciation of several people.