KR100291002B1 - Method for communication control regist ration and recognition by speech in digital hand phone - Google Patents

Abstract

The present invention includes a voice recognition unit in a digital portable telephone, and registers a voice corresponding to each of a call completion and redialing function in a memory in advance, and a user speaks the registered voice within a predetermined range error through a microphone of the phone. If so, the voice recognition unit may recognize the voice to perform a corresponding call termination and redialing function.

The present invention can be generally used in a digital portable telephone connected to a car hand-free device, and the call termination and redialing functions can be performed using only voice, so that there is no risk of accidents caused by the operation of the telephone while driving a vehicle. It gives you the advantage of making and receiving calls.

Description

Call Control Registration and Recognition by Voice in Digital Portable Phone {{METHOD FOR COMMUNICATION CONTROL REGIST RATION AND RECOGNITION BY SPEECH IN DIGITAL HAND PHONE}

The present invention relates to a control method of a digital portable telephone implemented with a voice recognition function. The present invention relates to a method of controlling a digital portable telephone for registering and recognizing a function mode by voice. The present invention relates to a call control registration and recognition method using voice in a digital portable telephone.

In using a mobile phone according to various situations, in particular, a case where a mobile phone is used in connection with a hand-free device for making a safe call while driving a car is proposed and implemented, which is a conventional user interface for the mobile phone. It has been suggested and used as an alternative to solve the obstacles to safe driving caused by various operations or dialing using the keypad as a means.

However, the voice recognition function implemented in the conventional digital portable telephone has a limitation in that only a function of registering a phone number in advance and dialing it by voice is used, in connection with a hand-free device for performing a call while driving a car. In some cases, it was not possible to provide a voice recognition function by performing a function such as pressing a call end key after terminating a call or pressing a call start key again when redialing. Accordingly, users are in a situation in which a separate key input is performed to perform a call termination function and a redialing function while driving, thereby causing a problem of safe driving.

Accordingly, an object of the present invention is to provide a method for recognizing a call termination function and a redialing function through voice in a voice recognition digital portable telephone.

Another object of the present invention is to provide a method for performing a call termination function and a redialing function through a voice recognition function, more safely and conveniently in a digital portable telephone used in connection with a hand-free device. have.

In order to achieve the above objects, the present invention includes a voice recognition unit in a digital portable telephone, and registers a voice corresponding to each of call termination and redialing function modes in advance in a memory, and the user registers the voice through the microphone of the telephone. If only the spoken voice is spoken, the voice recognition unit recognizes the voice so that the corresponding call termination and redialing function mode can be performed. do.

1 is a view showing the configuration of a digital portable telephone having a voice recognition function connected to the hand-free device according to an embodiment of the present invention

2 is a block diagram of a memory according to an embodiment of the present invention.

3 is a flowchart illustrating the overall operation of the digital portable telephone having a voice recognition function according to an embodiment of the present invention.

4 is a flowchart illustrating a call termination and redialing function mode voice registration method according to an exemplary embodiment of the present invention.

5A is a flowchart illustrating a call termination function mode voice recognition method according to an exemplary embodiment of the present invention.

5B is a flowchart illustrating a redialing function mode speech recognition method according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. Also, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In order to perform the voice recognition function, the voice itself is input and signal processing for extracting various features such as frequency characteristics from the input voice signal is performed.

1 is a view showing the configuration of a digital portable telephone having a voice recognition function connected to a hand-free device according to a preferred application of the present invention, in which each component is represented by a radio frequency (RF) unit and a dual tone multi Parts not directly related to the gist of the present invention, such as a frequency part, are omitted from illustration and description.

The analog voice signal input through the microphone 30 is analog / digital (hereinafter referred to as A / D) conversion unit 20, and the digital pulse code modulation (hereinafter referred to as PCM). Is converted into a signal. The PCM signal is transmitted to the voice encoder 45, and the voice encoder 45 compresses the PCM signal and outputs packet data. For example, the voice coder 45 may be an 8K QCELP in the case of a CDMA digital portable telephone, or a RPE-LTP (Regular Pulse Excitation with Long Term Prediction) scheme.

The packet data output from the voice encoder 45 is transferred to the microprocessor 50 which collectively controls the overall operation of the digital portable telephone. The first memory 60 is a nonvolatile memory (eg, flash memory, EEPROM), and stores program and initial service data that collectively controls the overall operation of the digital portable telephone. The second memory 80 is a RAM and temporarily stores various data according to the operation of the digital portable telephone. The speech recognition unit 85 outputs characteristic data for any speech. The characteristic data consists of 20 bytes per second and is a frequency characteristic, a signal size, a function of magnitude change, and the like. The voice recognition unit 85 may be implemented in hardware or software. If the voice recognition unit 85 is implemented in software, the voice recognition unit 85 may be stored in the first memory 60 that the digital portable telephone already has, without being added separately as shown. The microprocessor 50 controls the operation of a known digital portable telephone and performs the following voice recognition control operations. First, the packet data output from the voice encoder 45 is transferred to the voice recognition unit 85. In addition, a control operation is performed such that a predetermined operation (for example, dialing) is performed as a result of recognition according to the characteristic data index and the difference value output from the voice recognition unit 85. When the voice of the user is packetized by the voice encoder 45 and stored in a specific area of the first memory 60, the microprocessor 50 receives the address of the area from the voice encoder 45 and stores the address. When notifying the user of the recognition of the voice, the packet data is read from the address of the first memory 60 and used. The read voice data is referred to as playback voice data for convenience of explanation and explanation. The voice encoder 45 converts the reproduced data into a PCM signal and transmits the reproduced data to a digital to analog converter (D / A). The PCM signal input to the D / A converter 75 is converted into an analog form, and then amplified by the speaker 80 and output as an audible sound. As described above, instead of using the reproduced voice data, a guide message for notifying completion of voice recognition may be separately stored and stored. The handfree device connection unit 500 connects a known handfree device and a terminal, and digitizes the voice input through the handfree device microphone to the voice encoder 45 by digitizing the voice via the A / D converter 20.

The key input unit 55 has a plurality of keys, such as keys for setting various modes, call termination keys, numeric keys for dialing, and function mode voice registration keys. The beeper 90 generates a beep to signal the start of a given task. The flip state detector 95 senses an on / off state of a flip (not shown) to cause the microprocessor 50 to determine whether to enter the voice recognition mode.

2 is a diagram schematically illustrating a configuration of a first memory according to an embodiment of the present invention. It consists of a control program, characteristic data, reproducing voice data, telephone number, an area for storing a guide message, and a spare area. Reference numeral ADD denotes an address appropriately occurring in each case in the microprocessor 50.

The characteristic data region stores characteristic data of a user's own voice input when registering a call termination function and a redialing function according to an embodiment of the present invention, and the reproduction voice data region stores a user with the call termination function and redialing. Voices to be reproduced for confirmation when recognizing the function by voice are stored as illustrated, and this storage has already been made in the registration step.

FIG. 3 is a flowchart illustrating overall operations of a digital portable telephone having a voice recognition function according to an embodiment of the present invention. In the embodiment of FIG. 3, a flip digital portable telephone is applied.

When the user opens the flip of the standby digital portable phone, the microprocessor 50 detects this in step 110 and enters the voice recognition mode in step 120. In step 130, the input of a predetermined key or voice is examined. At this time, if a predetermined key or voice input is not detected, the process proceeds to step 140 to check whether a predetermined time has elapsed. If the corresponding test time has not elapsed, step 130 is repeated, and if it has elapsed, step 110 is repeated.

In step 130, if a predetermined key or voice input is detected, in step 160, if it is determined that the key is a function mode voice registration key, and if it is determined that it is a function mode voice registration key, the process proceeds to step 170. Run the routine. On the other hand, if it is not the function mode voice registration key, if it is determined in step 180 that it is a key for the registration mode, and the registration key proceeds to step 190 to execute the registration routine. This registration routine is a routine for registering a name. As a specific example of this, a voice is registered by using a voice and storing a telephone number corresponding to the name to enable voice dialing using a voice recognition function.

If it is not the registration key in step 180, the process proceeds to step 200 to execute the recognition routine, and in step 210 performs a routine for processing the recognized function. For example, in the recognition and processing routine, when a user speaks a name of a person to be called for voice dialing, the name is recognized and a corresponding telephone number is found and dialed.

4 is a flowchart illustrating a function mode voice registration method according to an embodiment of the present invention. In the implementation of the present invention, a voice registration method according to a call termination function and a redialing function is shown.

In step 300, the user detects which key is input as a function key corresponding to a function to be registered. That is, it detects whether the 'END' key corresponding to the call termination function or the 'redial key' corresponding to the redialing function is input.

First, when it is determined in step 300 that the corresponding call termination key is input, the microprocessor 50 controls the beeper to generate a beep sound for initiating the call termination function voice registration in step 310. Then, when the user speaks the voice corresponding to the end of the call with the microphone 30, for example, ″ end the call ″, the corresponding voice is transmitted to the voice encoder 45 in the form of a PCM signal through the A / D converter 20, and the voice The encoder 45 encodes the PCM signal to generate packet data. The microprocessor 50 recognizes the voice input by checking whether the packet data is received from the voice encoder 45 in step 320 and controls to reproduce the input voice in step 330. That is, the reproduced voice data corresponding to the voice is read from the first memory 60 and transferred to the voice encoder 45. In this case, the voice encoder 45 processes the reproduced voice data and transmits the reproduced voice data to the D / A converter 75. The D / A converter 75 converts the received voice data into an analog form and hears the audio signal through the speaker 80 (″ end of call ″). ) Subsequently, in step 340, the user ends the call corresponding voice ("end of call" according to this assumption), and the user checks whether the two input voices are similar in step 350. At this time, if similar, the function key END corresponding to the call termination is registered. In this case, the user only needs to say "end call" instead of entering the end call key 'END' when he wants to end the call. On the other hand, if the two voices are completely irrelevant, a voice re-input request message is output in step 380 and the process returns to step 300.

On the other hand, when the redialing key input is detected in step 300, this means that the redialing function is performed through voice recognition, and thus, the voice input operation called "redial" is performed instead of the "end call" voice input in step 310. The voice input operation is performed through the same process as the operation of step 380.

5A and 5B are flowcharts illustrating a functional voice recognition method according to an exemplary embodiment of the present invention. In particular, FIG. 5A illustrates a voice recognition method corresponding to a call termination function, and FIG. 5B corresponds to a redialing function. A diagram illustrating a speech recognition method.

First, referring to FIG. 5A, the digital portable telephone enters the voice recognition mode in step 510 in a standby state according to a predetermined input. In step 520, the user is in the phone call execution mode. Then, in step 530, the user determines the desired function. If the user says ″ end call ″, this voice data will be delivered to the voice encoder 45, and the microprocessor 50 checks if the packet data is delivered from the voice encoder 45 in response to the user voice ″ end of the call ″. . If there is packet data delivered as a result of the inspection, it is transmitted to the voice recognition unit 85. The voice recognition unit 85 checks whether similar characteristic data indexes and difference values are input. The similar characteristic data index means an index in a memory having characteristic data similar to the current input voice among characteristic data already registered, and the difference value corresponds to a difference between the two characteristic data. When a similar characteristic data index and a difference value are input, it is determined whether the difference value is smaller than a predetermined threshold. If the determination result is less than the threshold value, it is determined that the corresponding recognition is correct and the process proceeds to step 550 to perform the call termination function. However, if the determination result is larger than the threshold value, an error message is output. On the other hand, if another voice is input in place of the ″ end call ″ input in step 540, the corresponding function processing routine is performed in step 560.

Next, referring to FIG. 5B, when the user opens a flip of the digital portable telephone in standby state before speaking the desired function, the microprocessor 50 detects this in step 510-1 and enters the voice recognition mode in step 520-1. . Then, in step 530-1, when the user speaks a desired function, in step 540-1, the user detects this and determines what voice. This is performed through the same process as the operation of step 540. Accordingly, as in operation 540, if the determination result is smaller than the threshold, the recognition is determined to be correct. In step 550-1, the redialing function is performed. If the determination result is larger than the threshold, an error message is output. If another voice is input instead of the ″ redial ″ input in step 540-1, the corresponding function processing routine is performed in step 560-1.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention can recognize a function (end call, redial) by voice, so that the user does not need to operate the key one by one, and it is convenient and reduces the risk factors caused by the telephone call when driving or other tasks in parallel. There is an advantage to increase the work efficiency.

Claims (2)

In the call control method of a digital portable telephone, A first process of switching to voice recognition mode from the standby state of the digital portable telephone and selecting a call termination function voice registration and processing a voice of a function corresponding to a call termination key and reproducing the input voice at the same time; , After reproducing the voice of the first step, a voice that speaks a function corresponding to the call termination key is inputted secondly to detect and compare characteristics of the first input voice and the second input voice and compare the similarity. A second step of registering the voice in a function mode corresponding to the call termination key if the test is similar; In the second process, if the voice mode is not registered in the function mode but is in the name registration mode, the name is registered. If the call is not in the name registration mode, the voice is registered in the second process in the voice recognition mode while the call is in a flip-on state. Determining whether the voice corresponds to a function corresponding to the key, and if it is determined that the voice is the same voice, performing a call termination function; And a fourth process of outputting a predetermined error message and outputting a re-input request message of the voice when it is determined that the voice is not the same voice in the third process. In the call control method of a digital portable telephone, After switching to the voice recognition mode from the standby state of the digital portable telephone, a redialing function voice registration is selected, and if a voice of a function corresponding to the redial key is input, a first process of processing the voice and reproducing the input voice is performed. Steps, After reproducing the voice, the voice of the function corresponding to the redial key is inputted secondly, and the characteristics of the first input voice and the second input voice are detected and compared with each other. Registering with the voice for the second step; When the digital portable telephone is in the flip-on state, it enters the voice recognition mode and determines whether the input voice corresponds to the redial key registered in the second step. To perform the third step, And a fourth step of outputting a predetermined error message and outputting a re-input request message of the voice if it is determined that the voice is not the same voice in the third step.