JPH08223281A - Portable telephone set - Google Patents

Abstract

PURPOSE: To simplify entry of a password by processing the password into a voice signal, collating voice data (voice print) of the password having been registered in advance with a voice print received from a microphone and releasing the lock state when they are coincident so as to prevent illegal use of the telephone set. CONSTITUTION: When a voice print registration switch 10a of a key entry section 10' is closed, a control section 3' starts a voice print processing section 3a, and registers digitized voice data (voice print) at an A/D converter circuit 5 to a RAM 4. Furthermore, when a voice detection signal is received from a sound volume detector 6 in the lock state, the control section 3' starts the voice print processing section 3a and collates the voice data (voice print) digitizing a voice signal received from the microphone 7 at the A/D converter circuit 5 with voice data (voice print) registered in the RAM 4 in the lock state and releases the lock state when the voice print is coincident.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone which enables a user to enter a password to unlock the lock state, and in particular to convert the password into voice, and to record registered voice data (voiceprint) and user's voiceprint. The present invention relates to a mobile phone capable of preventing misuse and simplifying password input by collating and unlocking the lock state to bring it into a usable state when they match.

[0002]

2. Description of the Related Art A conventional mobile phone will be described with reference to FIG. FIG. 4 is a configuration block diagram of a conventional mobile phone. The conventional mobile phone includes an antenna 1, a wireless unit 2, a control unit 3, a RAM 4, an A / D conversion circuit 5,
It includes a microphone 7, a speaker 8, a display unit 9, a key input unit 10, and a D / A conversion circuit 11.

Next, each part will be specifically described. The antenna 1 receives and transmits radio waves. The microphone 7 is for inputting the voice of the user. The speaker 8 outputs the voice of the other party of the call. The key input unit 10 is for inputting general key information necessary for a mobile phone, and specifically, is provided with a power key, a ten-key pad, etc., and is input when an input operation is performed. The key information is transmitted to the control unit 3.

The display unit 9 displays general information about the mobile phone, and specifically displays the called telephone number, the state of the battery, and the like. The RAM 4 stores the registered password. The radio unit 2 receives the transmission data from the control unit 3, modulates the data and outputs the data to the antenna 1, and the reception data from the antenna 1 to demodulate and output the data to the control unit 3.

The A / D conversion circuit 5 converts the voice input from the microphone 7 from analog data into digital data and outputs it to the control unit 3. D / A conversion circuit 11
Is a circuit for converting a digital value into an analog value. Specifically, it is a circuit for converting digital data of voice input from the control unit 3 into analog data and outputting the analog data to the speaker 8.

When the reception data demodulated by the radio unit 2 is input, the control unit 3 outputs a voice digital data to the D / A conversion circuit 11 to output a voice from the other party. When the voice data digitized by the A / D conversion circuit 5 is input, the data is output to the wireless unit 2 and the voice is transmitted to the other party of the call. Also,
The control unit 3 outputs the display information to the display unit 9 to perform the display process, and performs the password registration and the collation process based on the key information input from the key input unit 10. Here, the registration of the password is such that when the password is input from the key input unit 10, the control unit 3 registers the password in the RAM 4. Also, the password verification process is performed by RA
The password registered in M4 and the password newly input from the key input unit 10 are compared to determine whether they match.

Next, the operation of the conventional mobile phone will be described. The user registers a password of an arbitrary code in the RAM 4 in advance, and when the user inputs the password from the key input unit 10 after turning on the power of the mobile phone, the control unit 3 is registered in the RAM 4. The password is verified, and if it matches, the lock is released and it becomes usable.

That is, in the above-mentioned conventional example, even if the power supply of the mobile phone is turned on, the call cannot be immediately made, and the lock is not released unless the same password registered in advance is input from the key input unit 10. It has become.

When voice is input from the microphone 7 after unlocking, the input voice is converted from analog data to digital data by the A / D conversion circuit 5 and output to the control unit 3, and the control unit 3 The data is output to the radio unit 2 as transmission data, the radio unit 2 modulates the transmission data, and the transmission data is transmitted from the antenna 1.

Further, when the radio wave is received from the antenna 1,
The radio unit 2 demodulates the received data and outputs it to the control unit 3, and the control unit 3 outputs the received data to the D / A conversion circuit 11,
The D / A conversion circuit 11 converts the received data from digital data to analog data and outputs sound from the speaker 8.

[0011]

However, in the above-mentioned conventional mobile phone, if the user forgets the password registered in advance, or if the user erroneously stores the password, the password will be lost. There is a problem in that the mobile phone cannot be used even by a legitimate user due to an erroneous input.

Further, since the password is inputted from the key input section, there is a problem that the password is known to others to unlock and the mobile phone is misused.

Further, since it is necessary to successively input the password from the key input unit when the power is turned on, there is a problem that the password input work is complicated.

The present invention has been made in view of the above situation. The password is converted into voice, and the voice data (voiceprint) of the password registered in advance is compared with the voice data (voiceprint) input from the microphone, An object of the present invention is to provide a mobile phone capable of preventing abuse, simplifying password input, and reducing power consumption by releasing the locked state when they match.

[0015]

According to a first aspect of the present invention for solving the above-mentioned problems of the conventional example, in a mobile phone, a microphone to which voice is input, and a voice input from the microphone are converted into digital data. To a voiceprint input data, a storage unit that stores the voiceprint as voiceprint registration data, a voiceprint input data output from the conversion unit, and a voiceprint registration data stored in the storage unit. However, it is characterized by having a voice print processing unit that permits use as a telephone when the two match.

According to a second aspect of the present invention for solving the above-mentioned problems of the conventional example, in the portable telephone according to the first aspect, the volume detecting section for detecting the volume of the voice input from the microphone and outputting the detection result. Is provided, and the voice print processing unit is a voice print processing unit that starts an operation in response to the detection result from the sound volume detection unit.

[0017]

According to the invention described in claim 1, in the voiceprint processing section,
It is a mobile phone that allows the use of the phone only when the entered voiceprint input data and the voiceprint registration data registered in the storage unit match and match, so it is easy to ensure security without key input. Can be realized.

According to the second aspect of the present invention, since the operation of the voice print processing unit is started by the sound volume detection result from the sound volume detection unit, the voice print processing unit performs the voice print collation processing. It works only when you do it and can reduce the power consumption of your mobile phone.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In the mobile phone according to the embodiment of the present invention, the voice data (voiceprint) of the password is registered in advance from the microphone, and when the voice data (voiceprint) is input from the microphone after the power of the mobile phone is turned on, it is registered. By comparing the voiceprint that is present with the voiceprint that is input from the microphone, and if they match, the locked state is released to prevent misuse and simplify password input.

First, the configuration of the mobile phone of the embodiment will be described with reference to FIG. FIG. 1 is a configuration block diagram of a mobile phone according to an embodiment of the present invention. It should be noted that portions having the same configuration as in FIG. The mobile phone of this embodiment has an antenna 1, a radio unit 2, and a display unit 9 as the same parts as those of the conventional mobile phone.
, Microphone 7, RAM 4, A / D conversion circuit 5, and D
The A / A conversion circuit 11 and the speaker 8 are provided, and a voiceprint registration switch 10a is a characteristic part of this embodiment.
There is provided a key input unit 10 'having a voiceprint processing unit 3a, a control unit 3'having a voiceprint processing unit 3a, and a volume detector 6.

Next, each part of the mobile phone of this embodiment will be specifically described. Antenna 1, wireless unit 2, A /
The D conversion circuit 5, the microphone 7, the speaker 8, the display unit 9, and the D / A conversion circuit 11 are the same as the conventional ones, and therefore the description thereof will be omitted. Further, the RAM 4 stores the password as in the conventional case, but stores the voice data (voiceprint) obtained by digitizing the voice input from the microphone 7 by the A / D conversion circuit 5.

Next, the structure of the characteristic portion of this embodiment will be described in detail. The key input unit 10 'is provided with a voiceprint registration switch 10a in this embodiment in addition to a general key required for a mobile phone. Here, the voice print registration switch 1
0a is a switch for voiceprint registration. The volume detector 6 detects the volume input from the microphone 7. Specifically, when a voice having a certain level or higher is input from the microphone 7, the volume detector 6 outputs a voice detection signal to the control unit 3 '. It has become.

The control section 3'is a characteristic part of this embodiment in addition to the call processing of a general portable telephone similar to the conventional one.
Voiceprint processing unit 3 that performs processing related to a password that has been converted into a voice
a is provided. Here, the voiceprint processing unit 3a performs a voiceprint registration process and a voiceprint matching process.

Next, an outline of the operation of the mobile phone of this embodiment will be described with reference to FIG. At the time of shipment, the mobile phone of this embodiment is unlocked with no password set. That is, the mobile phone is ready for use immediately after being turned on.

When the power of the mobile phone is turned on,
When the voice print registration switch 10a of the key input unit 10 'is turned on, a signal for starting the voice print registration process is output to the control unit 3', and the control unit 3'starts the voice print processing unit 3a,
Performs voiceprint registration processing. The details of the voiceprint registration process will be described later.

When the voiceprint password is set in the RAM 4 after the voiceprint registration process is performed, the lock state is set when the power is turned on next time.

Next, when the voice detection signal is input from the voice detector 6 when the mobile phone is powered on and in the locked state, the control section 3'starts the voice print processing section 3a,
Performs voiceprint matching processing. When the voice prints match, the lock state is released and the normal call processing is performed. When the voice prints do not match, the lock state remains. The details of the voiceprint matching process will be described later. Then, when the lock is released, even if the voice detection signal is input from the voice detector 6, the control unit 3 ′ is
The voice print processing unit 3a is not activated. Also, when the power of the mobile phone is turned off, the locked state is restored again.

Even when the voiceprint password is already registered and stored in the RAM 4, the key input unit 10 'is used.
When the voice print registration switch 10a is turned on, the control unit 3 '
Will activate the voice print processing unit 3a and change the password.

Next, the processing operation of the voice print processing section 3a of this embodiment will be specifically described with reference to FIGS. FIG. 2 is a flowchart of the voiceprint registration process of the voiceprint processing unit of this embodiment. FIG. 3 is a flowchart of the voiceprint matching process of the voiceprint processing unit of this embodiment. In the voiceprint registration process of the voiceprint processing unit 3a of this embodiment, when the voiceprint registration switch 10a of the key input unit 10 'is turned on and activated by the control unit 3', the voice input from the microphone 7 is A / D converted. Circuit 5
Input the voice data (voiceprint) digitized in (10
0), the input voice data (voiceprint) is stored in the RAM 4 (110).

Next, in the voice print matching process of the voice print processing unit 3a of the present embodiment, the voice inputted from the microphone 7 is detected by the volume detector 6.
The voice detection signal is output to the control unit 3 ', is activated by the control unit 3', and the voice input from the microphone 7 is digitized by the A / D conversion circuit 5 to obtain voice data ( Voiceprint) is input (200), the registered voice data (voiceprint) registered in the voiceprint registration process is called from RAM4 (210), and the input voice data (voiceprint) is compared with the registered voice data (voiceprint) called from RAM4. (22
0), it is determined whether the voiceprints match (230). If they match, the locked state is released to make the mobile phone usable (240). If they do not match, the unlocking is not performed and the voiceprint processing is performed. The voiceprint matching process of the part 3a is completed.

According to the mobile phone of the present embodiment, when the voice print registration switch 10a of the key input unit 10 'is turned on, the control unit 3 activates the voice print processing unit 3a to output the voice input from the microphone 7. When the voice data (voiceprint) digitized by the A / D conversion circuit 5 is stored (registered) in the RAM 4 and a voice detection signal is input from the volume detector 6 to the control unit 3'in the locked state, The control unit 3 ′ activates the voiceprint processing unit 3a, and voice data (voiceprint) obtained by digitizing the voice input from the microphone 7 by the A / D conversion circuit 5 and voice data (voiceprint) registered in the RAM 4 Since the lock state is released when the voiceprints match with each other, the security is improved and the operation can be simplified.

According to the mobile phone of this embodiment, when the voice print registration switch 10a of the key input unit 10 is turned on, the control unit 3'starts the voice print processing unit 3a to perform voice print registration processing. When a voice detection signal is input from the voice detector 6, the control unit 3 ′ activates the voiceprint processing unit 3a to perform voiceprint matching processing, and when the voiceprints match,
When the lock state is released and the lock is released, even if the voice detection signal is input from the voice detector 6, the voiceprint processing unit 3a
Is not activated, which has the effect of reducing power consumption.

[0033]

According to the first aspect of the present invention, the use of the telephone is performed only when the voiceprint processing unit collates the input voiceprint input data with the voiceprint registration data registered in the storage unit and the two match. Since the mobile phone is permitted, there is an effect that security can be easily achieved without key input.

According to the second aspect of the invention, since the operation of the voiceprint processing section is started by the volume detection result from the volume detection section, the voiceprint processing section performs the voiceprint matching process. It operates only when it is performed, and has the effect of reducing the power consumption of the mobile phone.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a flowchart of a voiceprint registration process of a voiceprint processing unit according to the present embodiment.

FIG. 3 is a flowchart of a voiceprint matching process of a voiceprint processing unit according to the present exemplary embodiment.

FIG. 4 is a configuration block diagram of a conventional mobile phone.

[Explanation of symbols]

1 ... Antenna, 2 ... Radio part, 3, 3 '... Control part,
3a ... Voiceprint processing section, 4 ... RAM, 5 ... A / D conversion circuit, 6 ... Volume detector, 7 ... Microphone, 8 ... Speaker, 9 ... Display section, 10, 10 '... Key input section, 1
0a ... Voiceprint registration switch, 11 ... D / A conversion circuit

Claims (2)

[Claims] 1. A microphone into which voice is input, a conversion unit that converts voice input from the microphone into digital data and outputs it as voiceprint input data, a storage unit that stores the voiceprint as voiceprint registration data, and A mobile phone, comprising: a voice print processing unit for collating the voice print input data output from the conversion unit with the voice print registration data stored in the storage unit, and permitting the use as a telephone when they match. 2. The volume of input voice from a microphone is detected,
A volume detector that outputs the detection result is provided, and the voiceprint processor
The mobile phone according to claim 1, wherein the mobile phone is a voiceprint processing unit that starts an operation in response to a detection result from the volume detecting unit.