JPH052468U - Mobile phone - Google Patents

Abstract

(57) [Abstract] [Purpose] A telephone body is equipped with a mechanism that can recognize the voice of a legitimate user to eliminate the use by a third party. A switch means 20 is provided between the transmission / reception unit 6 and the modulation / demodulation circuit 8, a voice memory means 22 for registering a voice signal of a normal user is provided, and a voice signal input from a transmitter 28 and the voice The voice recognition means 24 compares the voice signal registered in advance in the memory means 22, and when they match, the switch means 20 is turned on,
If they do not match, turn them off.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvements in mobile phones.

[0002]

[Prior Art]

 In recent years, along with the diversification of business, various improvements have been made to communication means. For example, mobile phones have been developed that can send and receive immediately without using a built-in telephone, such as a public telephone, regardless of where they are in a predetermined area. It is easy to carry around and tends to be widely used. A mobile telephone such as a cordless telephone of this type is configured so that a unique telephone number of the telephone can be registered in advance with a telephone company and can freely access the telephone network by radio. ..

[0003]

[Problems to be solved by the device]

 By the way, this type of mobile phone billing system is different from public phones that pay a fee each time it is used, and it is a system that pays the usage fee regularly, for example, on a monthly basis, like a phone equipped normally. .. Therefore, if this mobile phone handed over to a third party due to theft etc., the authorized owner must pay the telephone charges used by the third party until the telephone number registered with the telephone company is deleted. It will be. However, the conventional method of preventing theft is to simply tie the phone body to the clothing belt etc., and it is troublesome for the owner to tie the phone body to the belt etc. Therefore, the current situation is that the anti-theft method is not fully used.

The present invention was devised in order to effectively solve the above problems. An object of the present invention is to provide a portable telephone in which a mechanism capable of recognizing the voice of an authorized user is attached to the telephone body so that it cannot be used by a third party.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a portable telephone having a transmitting / receiving unit and a modulation / demodulation circuit electrically connected to the transmitting / receiving unit, which is interposed between the transmitting / receiving unit and the modulation / demodulation circuit. , A switch means for electrically turning on and off these parts, a voice memory means for storing and registering a voice signal, a voice signal input from a transmitter side, and a voice memory means for registering the voice signal. And a voice recognition means for turning on the switch means when the voice signals match with each other and turning off the switch means when the voice signals do not match with each other.

[0006]

[Action]

 Since the present invention is configured as described above, when making a call, the voice recognition means first compares the voice signal input from the transmitter with the voice signal registered in the voice memory means. However, if they match, the switch means is maintained in the ON state to maintain the connection between the transmission / reception unit and the modulation / demodulation circuit, thereby enabling a call. On the other hand, if it is determined that the two voice signals do not match, the voice recognition means turns off the switch means and disconnects the electrical connection between the transmission / reception unit and the modulation / demodulation circuit to make a call. Make it impossible. Also, when an incoming call is received from the outside, immediately after the call is started, it is judged whether the voice signal from the transmitter is the same as the registered voice signal as described above. Is kept on and the call continues, and if there is a mismatch, the switch means is turned off and the call is disconnected.

[0007]

【Example】

 An embodiment of a mobile phone according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a mobile phone according to the present invention, and FIG. 2 is a concrete configuration diagram of the embodiment shown in FIG. As shown in the figure, this portable telephone 2 includes an antenna 4 for both transmission and reception, a transmission / reception unit 6 connected to this antenna 4, a modulation / demodulation circuit 8 connected to the subsequent stage of this unit 6, and a voice signal. The main components are an analog signal processing unit 10 for processing a telephone, a telephone control unit 12 for controlling the entire telephone, an amplifier circuit 16 for driving a buzzer 14, and an operation unit 18 for a user to key in. In addition, the following members, which are features of the present invention, are provided between the transmission / reception unit 6 and the modulation / demodulation circuit 8, and a switch unit 20 as a switch means for electrically turning on / off these units. , A voice memory 22 as a voice memory means for storing and registering a voice signal of an authorized user, a voice signal input from the transmitter side and a voice signal stored in the voice memory 22. Is connected to the switch unit 20 and a voice recognition circuit 24 as a voice recognition means for holding the ON state of the switch unit when they match and turning them OFF when they do not match. A manual switch 26 is provided.

The transmitting / receiving unit 6 includes a receiving unit 6 a, a transmitting unit 6 b, a PLL-type synthesizer 6 c, and an antenna sharing device 6 d for transmitting and receiving at the same time with one antenna 4. The synthesizer 6c latches the PLL data 12a relating to the transmission and reception channel designation given from the telephone controller 12 and determines the reception and transmission channels of the reception unit 6a and the transmission unit 6b based on the latched PLL data 12a. Set. The modulation / demodulation circuit 8 enters a different operation mode based on the call / control channel designation signal 12b applied to the control input terminal 8a. When the call / control channel designation signal 12b output from the telephone control unit 12 is in the call channel mode, the modulation / demodulation circuit 8 sends the transmission signal 10a output from the analog signal processing unit 10 into the modulation / demodulation circuit 8. The detection signal applied to the reception signal input terminal 8c is output from the transmission system output terminal 8b to the analog signal processing unit 10 while being output to the transmission signal output terminal 8b and applied to the transmission unit 6b. Output.

When the call / control channel designation signal 12b is in the control channel mode, the modulation / demodulation circuit 8 converts the transmission data 12c output from the telephone control unit 12 into a frequency signal which is predetermined according to the logical level. The signal is modulated (for example, SP coded FSK), the modulated output signal is supplied to the transmitting unit 6b, the signal detected by the receiving unit 6a is demodulated, and the logical level received signal 12d is output. The analog signal processing unit 10 is activated when the call / control channel designation signal 12b applied to the control input terminal 10b or the call channel mode is set, and amplifies the output signal of the transmitter from the transmitter 28 and becomes excessive. For the transmission input level, the transmission signal 10a that has been subjected to the level compression processing for suppressing spurious is output, and the reception signal output from the voice signal output terminal 8d of the modulation / demodulation circuit 8 is amplified. Drive the handset 30. The telephone control unit 12 is composed of, for example, a one-chip microcomputer.

When the telephone control unit 12 receives a code signal relating to an incoming call transmitted from a connection device (not shown) via a control channel, it outputs a predetermined audible frequency signal to the incoming signal output terminal 12e. The buzzer 14 is made to ring through the amplifier circuit 16 to hear the incoming call or make a vibration call. The voice memory 22 has a built-in RAM or the like, and becomes a storable state by pressing a predetermined button on the operation unit 18. At this time, voice input from the transmitter 28 via the analog signal processing unit 10 is performed. The signal 10c is stored and registered as a voice signal of a regular user. Further, the voice recognition circuit 24 has a voice comparator therein, and when making a call or receiving a call, a voice signal registered in the voice memory 22 at the beginning of a call is used. It is configured to compare with a voice signal 10c sent from the analog signal processing unit 10 at the start of a call. If the comparison results match, an instruction signal 24a is output to the switch unit 20 so as to hold the ON state or to turn it ON. The instruction signal 24a is output so as to open the switch to be in the off state or to maintain the off state.

The switch section 20 opens and closes the electrical connection between the transmission / reception unit 6 and the modulation / demodulation circuit 8, and operates according to the instruction signal 24 a from the voice recognition circuit 24 as described above. Further, the manual switch 26 can be operated by, for example, a dedicated key, and by operating it, the switch unit 20 is kept in the ON state, that is, in the call enabled state, regardless of the instruction signal 24a. ..

Next, the operation of this embodiment configured as described above will be described. FIG. 3 shows a flowchart for making a call, and FIG. 4 shows a flowchart for making a call. First, prior to use, the voice of the authorized user is registered in the voice memory 22. In this case, for example, the voice memory 22 can be stored by inputting a predetermined number or the like known only to the authorized user from the operation unit 18, and in this state, the transmitter 28 and the analog signal processing unit are stored. A voice signal 10c input via 10 is registered in advance as a voice signal of an authorized user. Of course, the registration method is not limited to this.

When an authorized user of the portable telephone 2, for example, the owner, makes a call, the answer is YES in S1 of FIG. 3, and the call button of the operation unit 18 is turned on (S2). When the user speaks toward the transmitter 28 (S3), the voice signal 10c is input to the voice recognition circuit 24 via the analog signal processing unit 10. Then, this input voice signal is compared with a voice signal registered in advance in the voice memory 22 by a voice comparator (not shown), and it is determined whether or not the voice signal is registered. It is determined whether there is any (S4). Here, if the input voice signal is registered, the determination result is YES, and the voice recognition circuit 24 instructs the switch unit 20 to turn on the instruction signal 24a or open the switch unit 20. If so, an instruction signal 24a indicating switching to the on state is output, and the switch unit 20 is turned on (S5).

Then, the user dials the other party from the operation unit 18 (S6), and shifts to a normal communication state (S7). In this way, as long as the authorized user who has registered the voice signal, the call can be resumed any number of times by the procedure described above even if the call is ended. Here, if the user does not register the voice but uses it with permission from an authorized user, the dedicated key will be used. That is, since the voice of the user is not registered, the answer is NO in S1 of FIG. Then, the user operates the manual switch 26 with the dedicated key (S8). As a result, the switch unit 20 is turned on (S5), and the call is enabled, and thereafter, the communication is continued in the same manner as described above.

On the other hand, if the phone is used by a third party who is not a legitimate user and has not obtained the permission of the legitimate user, for example, a thief of the telephone, he / she is not the owner of the telephone (S1). Since it also does not have a key for operation, the result in S2 is NO, and the process returns to the start. That is, since the switch unit 20 is not turned on, the call cannot be made and the portable telephone cannot be used after all. Even if the switch unit 20 is initially in the ON state and the call can be started, the voice recognition circuit 24 determines that the voice of the user is not registered at the beginning of the conversation, and immediately switches the switch unit 20 to the OFF state. Therefore, it is not possible to make a practical call.

On the other hand, when an incoming call is received by this portable telephone, first, in the flow chart shown in FIG. 4, when a code signal relating to an incoming call is received, the telephone controller 12 turns on the buzzer 14 via the amplification circuit 16. Sound (S1). Then, when the switch unit 20 is off, it is turned on, and the call is ready (S2). Next, when the owner of this telephone speaks (S3), the voice signal is immediately sent to the voice recognition circuit 24 as described above, and here the voice signal input and the voice registered in the voice memory 22 are input. It is determined whether the signals match, that is, whether the signals have been registered (S4). Here, in the case of YES, it is determined that the owner of the telephone is a legitimate user, and the voice recognition circuit 24 outputs the instruction signal 24a for keeping the ON state to the switch unit 20 to switch the switch. The unit 20 is held in the ON state and the call is continued (S5).

If it is determined in S4 that the input voice signal is not registered, the voice recognition circuit 24 outputs an instruction signal 24a for switching to the off state to the switch unit 20, and the switch unit Transmission and reception are disabled by turning off 20 (S6). In this case, if the owner of the telephone is authorized by the authorized user and has a dedicated key, the switch section 20 is turned on by operating the manual switch 26, Of course, normal transmission and reception will be possible. As described above, in the present invention, a legitimate user of the telephone, or a person authorized by this person and having a dedicated key, can make and receive calls, but is used by other third parties. I can't. In the above embodiment, only one voice signal can be registered, but the present invention is not limited to this, and voice signals of a plurality of people may be registered.

[0018]

[Effect of the device]

 As described above, according to the present invention, the following excellent operational effects can be exhibited. This phone cannot be used by anyone other than the authorized user of the phone and those authorized by this person, so it cannot be used without permission by a third party. Therefore, since it cannot be used by a third party, it is possible to prevent the telephone itself from being stolen.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a mobile phone according to the present invention.

FIG. 2 is a specific configuration diagram of the mobile phone shown in FIG.

FIG. 3 is a flowchart showing a case of making a call.

FIG. 4 is a flowchart showing a case where an incoming call is made.

[Explanation of symbols]

2 ... Mobile phone, 4 ... Antenna, 6 ... Transceiver unit, 8 ... Modulation / demodulation circuit, 10 ... Analog signal processing unit, 12
... Telephone control unit, 16 ... Buzzer, 18 ... Operating unit, 20 ...
Switch section (switch means), 22 ... voice memory (voice memory means), 24 ... voice recognition circuit (voice recognition means),
26 ... Manual switch, 28 ... Transmitter, 30 ... Receiver.

Claims (1)

Claims for utility model registration 1. A portable telephone having a transmission / reception unit and a modulation / demodulation circuit electrically connected to the transmission / reception unit, wherein the transmission / reception unit is interposed between the transmission / reception unit and the modulation / demodulation circuit.
Switch means for electrically turning on and off these parts, voice memory means for storing and registering a voice signal,
The voice signal input from the transmitter side is compared with the voice signal registered in the voice memory means, the switch means is turned on when these voice signals match, and turned off when they do not match. A portable telephone characterized in that it is configured so as to include a voice recognition means for setting a state.