JP3327326B2 - Mobile phone malfunction prevention method and malfunction prevention circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a malfunction prevention method and a malfunction prevention circuit for a portable telephone.

[0002]

2. Description of the Related Art Mobile phones are often carried in bags or pockets. For this reason, an operation such as a button press may be inadvertently received and a malfunction may occur. Conventionally, there are the following three methods for preventing such a malfunction. (1) Cover the operation buttons with flips. (2) Use a dial lock that disables button operation unless a correct password is entered. (3) As described in Japanese Patent Application Laid-Open No. 9-18566, control of input permission to a touch panel as a substitute for an operation button portion is realized by using an on / off switch.

[0003]

However, since a button operation is required to pick up an incoming call, the flip-based system has an off-hook button placed outside the flip cover to receive the call quickly. And malfunction cannot be completely prevented. Further, since there is a flip, an extra operation of opening the flip at the time of transmission is required, which hinders convenience.

[0004] Further, in a system using a dial lock,
It is necessary to input a password for releasing the dial lock when making a call, which hinders convenience.

In the technique described in Japanese Patent Application Laid-Open No. 9-18566, it is necessary to operate an on / off switch to enable / disable input of the touch panel every time a call is made or received, which requires an additional operation of switching the on / off switch. And convenience is hindered.

An object of the present invention is to provide a malfunction prevention method and a malfunction prevention circuit for a portable telephone which solve the above problems.

[0007]

According to the present invention, it is detected whether or not a portable telephone is manually held, and when the portable telephone is not manually held , voice input is performed .
A malfunction prevention method for a mobile phone, characterized by invalidating a predetermined operation of the mobile phone according to an incoming call response operation for generating an authentication end signal, is obtained.

[0008]

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a malfunction preventing circuit for a mobile phone according to an embodiment of the present invention will be described.

This malfunction prevention circuit is for preventing a call or an incoming call due to a malfunction when the mobile phone is inadvertently operated by pressing a button or the like, and determines whether or not a person is holding the mobile phone in his hand. A sensor 9 for detecting the The sensor 9 is configured by a pressure sensor, a capacitance sensor, or the like, and detects a change in pressure or a change in capacitance applied by being held by a person. If a human is holding the mobile phone, the sensor 9 generates an input valid signal. This sensor 9 is desirably provided on the side surface of the main body of the mobile phone.

The malfunction prevention circuit further includes a main control unit 1 for controlling basic operations such as transmission and reception of a mobile phone, and an input information control unit 2 connected to the main control unit 1 and the sensor 9.
And an input detection circuit 3 connected to the input information control unit 2.
And an input unit 4 connected to the input detection circuit 3. When detecting an input for transmission from the input unit 4, the input detection circuit 3 sends input information to the input information control unit 2.
The input information control unit 2 determines whether or not to notify the main control unit 1 of the input information according to the presence or absence of the input valid signal description. When the input valid signal is not supplied, the input information control unit 2 discards the input information. The control unit 1 performs transmission / reception operation description control based on information from the input information control unit 2 and the incoming call control circuit 6.

The malfunction prevention circuit further includes a receiving unit 5 for detecting an incoming call to the mobile phone and generating an incoming signal, a microphone 7 for collecting a human voice and generating an audio signal, and a connection to the microphone 7. Voice recognition unit 8 for recognizing voice signals
And an incoming call control circuit 6 connected to the voice recognition unit 8, the receiving unit 5, the sensor 9, and the main control unit 1.
The voice recognition unit 8 checks whether or not the defined keyword matches the voice signal. If they match, the voice recognition unit 8 sends an authentication end signal to the incoming call control circuit 6.
That is, the voice recognition unit 8 recognizes a voice signal input from the microphone 7 and, when a general keyword such as a defined keyword, that is, a simple “yes”, “hello” or “hello” is received, is received. The word to be used is compared with the input voice signal, and if they match, a signal indicating the end of authentication is sent to the incoming call control circuit 6. The incoming call control circuit 6 checks whether or not an input valid signal has been transmitted from the sensor 9 according to the incoming signal.
If the signal has been transmitted, an authentication end signal from the voice recognition unit 8 or an off-hook signal from the input information control unit 2 is checked, and if any of the signals has been transmitted, an incoming call instruction is issued to the main control unit 1.

Next, the operation of the malfunction prevention circuit of FIG. 1 at the time of transmission will be described with reference to the flowchart shown in FIG.

In step SA1, the input unit 4 monitors the input of the mobile phone. In step SA2, the input detection circuit 3 determines whether an input to the input unit 4 has occurred. Upon detecting an input to the input unit 4, the input detection circuit 3 sends the input information to the input information control unit 2. In step SA3, the input information control unit 2 monitors the sensor 9. In step SA4, the input information control unit 2 determines whether there is an input valid signal from the sensor 9. If there is no input valid signal, the process proceeds to step SA5, where the input information control unit 2 discards the received input information and waits for input information from the input detection circuit 3 again. If there is an input valid signal, the process proceeds to step SA6, where the input information control unit 2 sends the received input information to the main control unit 1. In step SA7, the control unit 1 performs a transmitting operation based on the input information.

Next, the operation of the malfunction prevention circuit of FIG. 1 at the time of an incoming call will be described with reference to the flowchart shown in FIG.

In step SB1, the receiving unit 5 monitors an incoming call. When an incoming call is detected in step SB2, the receiving unit 5 sends an incoming signal to the incoming call control circuit 6.
At step SB3, the incoming call control circuit 6 monitors the sensor 9. In step SB4, the incoming call control circuit 6 determines the presence or absence of an input valid signal from the sensor 9 according to the incoming signal. If the input valid signal is not present, the process waits until the input valid signal becomes valid. During this time, the main control unit 1
Keeps informing you of incoming calls by sounding a ringtone. Here, when the input valid signal becomes valid when the person picks up the mobile phone, the process proceeds to step SB5, where the incoming call control circuit 6 monitors the off-hook keyword and detects whether the off-hook signal is detected by operating the input unit. , Voice recognition unit 8
Waits for an authentication end signal to be detected. Step SB6
Then, the incoming call control circuit 6 determines whether or not there is an off-hook signal or an authentication end signal. If neither signal is valid,
It returns to step SB5. When any of the signals becomes valid, the process proceeds to step SB7, where the incoming call control circuit 6 recognizes that the incoming operation of the operator has been completed, instructs the control unit 1 to receive the incoming call, and makes a call. Start.

As described above, the sensor 9 detects whether or not a person is holding the mobile phone in order to use it, and notifies the input information control unit 2 of an input valid signal. In response to the input valid signal, the input information control unit 2
The control unit 1 is notified of input information from the input unit 4 through the control unit 1. On the other hand, when there is no input valid signal, the input information from the input unit 3 is discarded. As a result, when a mobile phone is put in a bag or a pocket, transmission due to a malfunction can be prevented even if the operation button is inadvertently pressed.

When an incoming call is received, the input incoming call control circuit 6 determines whether or not the incoming call control circuit 6 is going to answer the incoming call. If it is determined that the incoming call is being answered, the voice recognition unit 8 is activated. It is determined whether the voice input through the microphone 7 matches the keyword registered by the voice recognition unit 8. If the keyword matches the registered keyword, the voice recognition unit 8 notifies the incoming call control circuit 6 of a recognition end signal. Incoming incoming call control circuit 6
Notifies the control unit 1 of the incoming call permission. Thus, at the time of an incoming call, it is possible to answer the incoming call without operating the input unit 4. In addition, it is possible to prevent the user from responding to surrounding voices other than at the time of the incoming call, and to prevent the malfunction of recognizing the keyword and answering the call before picking up the telephone even at the time of the incoming call.

[0020]

As described above, the present invention has the following effects.

The first effect is that when a call is made, the sensor 9 checks whether or not the operator is going to make a telephone call. Even if it is pressed, it is possible to prevent transmission due to malfunction.

The second effect is that, when making a call, the sensor 9 checks whether or not the operator is going to make a telephone call. Therefore, in order to prevent a malfunction, extra functions such as a flip and a dial lock for covering the operation buttons are provided. Even if it is not included, it is possible to prevent transmission due to malfunction.

The third effect is that when an incoming call is received, the sensor 9 checks whether or not the operator is ready to receive a telephone call, so that the user can talk without pressing the operation button and going off-hook. That is, it is possible to quickly and safely receive a telephone call while driving or the like.

The fourth effect is that when an incoming call is received, the sensor 9 checks whether or not the operator is ready to receive a call. Is to be able to prevent erroneous operation.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram for explaining a malfunction prevention method for a mobile phone according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining a time of transmission in the malfunction prevention method of FIG. 1;

FIG. 3 is a flow chart for explaining an incoming call of the malfunction prevention system in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main control part 2 Input information control part 3 Input detection circuit 4 Input part 5 Receiving part 6 Incoming control circuit 7 Microphone 8 Voice recognition part 9 Sensor

Continuation of the front page (56) References JP-A-9-172476 (JP, A) JP-A-10-308818 (JP, A) JP-A-10-327234 (JP, A) JP-A-62-2546 (JP, A) JP-A-59-153342 (JP, A) JP-A-9-18373 (JP, A) JP-A-11-168553 (JP, A) JP-A-11-168554 (JP, A) 11-239201 (JP, A) JP-A-4-36342 (JP, U) JP-A-4-119148 (JP, U) Registered utility model 3052545 (JP, U) (58) Fields investigated (Int. Cl. H04M 1/00 H04B ⁷ /24-7/26 113 H04Q ^7/ 00-7/38

Claims (3)

(57) [Claims] The mobile phone detects whether or not the mobile phone is held manually. If the mobile phone is not manually held, the mobile phone responds to an incoming call response operation for generating an authentication end signal by voice input. A malfunction prevention method for a mobile phone, wherein a predetermined operation is invalidated. 2. The method of claim 1, wherein the detection is performed by a pressure sensor. 3. The method according to claim 1, wherein the detection is performed by a capacitance sensor.