JP2000041103A - Radio telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a radio telephone set capable of switching a speech mode where any speech mode is not switched without unconsciousness of a talker due to wrong operation during the speech and no exclusive switch for switching the speech mode is provided. SOLUTION: A state control section 20 consists of a state monitor section 21 that discriminates whether a current state is a standby state or a speech state, an input key discrimination section 22 that discriminates whether or not a mode changeover switch is depressed from an input section 10, a state comparison discrimination section 23 that discriminates whether or not the mode switching is possible, a password collation section 25 that collates a password inputted from the input section 10 by a talker, a state change section 24 that switches a mode when the switching of modes is possible by the state comparison discrimination section 23 and an echo canceller control section 26 that controls an echo canceller in the case of switching the mode. A non- control section 30 is an acoustic system section in a conventional telephone set and is provided with a volume circuit 31 that varies volume, a speaker 33 that outputs sound, a microphone 34 that inputs voice and amplifier circuits 32a, 32b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone such as a portable telephone and a cordless telephone, and more particularly to a radio telephone having a hands-free function.

[0002]

2. Description of the Related Art Conventionally, a handset type wireless telephone can make a call by putting the wireless telephone itself on the ear and mouth of a speaker, like a receiver of a wired telephone. Therefore, the handset-type wireless telephone is convenient because it can be used in the same manner as a wired telephone without causing the speaker to feel uncomfortable.

[0003] However, the handset type radio telephone has only the mode of only the handset call. Therefore, for example, when a speaker performs a call while writing, or when a plurality of speakers participate in a call, the handset type wireless telephone is difficult to use and is inconvenient.

An example in which these problems are improved is disclosed in Japanese Patent Application Laid-Open
No. 103070. The wireless telephone described in this publication is provided with a switch for switching between a handset call mode and a hands-free call mode in which a call can be made without using a hand. , A call mode switching between a handset call mode and a hands-free call mode is performed.

[0005]

However, the above-mentioned wireless telephone switches between the handset talk mode and the hands-free talk mode with one switch. Therefore, when the speaker is in the handset call mode, that is, when the speaker puts the handset on the ear and is talking, if the speaker accidentally presses the switch, the mode is switched to the hands-free call mode. However, there is a disadvantage that the receiving volume suddenly increases and the ear of the speaker is hurt.

Further, providing a new switch for switching between a handset call mode and a hands-free call mode in a wireless telephone which is currently demanded to be reduced in size and weight prevents the reduction in size and weight. There is a problem to do.

The present invention has been made under such a background, and does not perform a call mode change unaware of a speaker due to an erroneous operation during a call, and has a dedicated switch for the call mode change. It is an object of the present invention to provide a wireless telephone capable of switching a call mode without using a telephone.

[0008]

According to the first aspect of the present invention,
A microphone connected to the base station via a wireless communication line, for collecting transmission voice and outputting a transmission voice signal;
In a wireless telephone having a speaker for outputting a received voice in response to a received voice signal, when switching the call state from the handset call mode to the hands-free call mode, the switch from the handset call mode to the hands-free call mode is permitted, and the switching operation malfunctions. A password collating means for collating the password data inputted in order to prevent the password data with the password data preset in the storage unit.

According to a second aspect of the present invention, there is provided a microphone which is connected to a base station via a wireless communication line and which collects transmitted voice and outputs a transmitted voice signal; 2. A wireless telephone according to claim 1, further comprising a speaker for outputting, a state monitoring means for judging a reception waiting state and a call state, an input key judging means for judging a type of an input key signal, and State comparison means for determining state change, and input to allow switching from handset call mode to hands-free call mode when switching the call state from handset call mode to hands-free call mode, and to prevent erroneous switching Password data to be compared with the password data set in the storage unit in advance. Characterized by comprising a de collating means, and a state changing means for switching a call state from the handset phone call mode to the handsfree call mode.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a wireless telephone according to an embodiment of the present invention. In this figure, the wireless telephone according to the present embodiment includes an input unit 10 having a plurality of keys (not shown), a state control unit 20 for controlling a telephone call state or the like of the wireless telephone, and a non-control unit for performing telephone call voice processing. And a unit 30.

The state control unit 20 communicates with the state monitoring unit 21 to determine whether the apparatus is in a standby state or a call state.
1, an input key determination unit 22, a state comparison determination unit 23,
It comprises a state change unit 24, a password collation unit 25, and an echo canceller control unit 26.

An input key determining unit 22 determines that a switch for switching a call mode is pressed from the input unit 10. The state comparison determination unit 23 determines whether the call mode can be switched. The password verification unit 25 verifies a password input by a speaker from a plurality of keys (not shown) of the input unit 10 with password data stored in the password verification unit 25 in advance.

The state change section 24 switches the call mode when the state comparison / determination section 23 determines that the call mode of the wireless telephone can be switched. The echo canceller control unit 26 controls the echo canceller (not shown) at the same time as the switching of the call mode of the wireless telephone by the state changing unit 24.

The non-control unit 30 is the same as that for performing sound control in a normal telephone, and a volume circuit 31
, Amplifying circuit 32a, amplifying circuit 32b, and speaker 3
3 and a microphone 34. The volume circuit 31 actually varies the audio volume according to a control signal from the state control unit 20.

The amplifier circuit 32a amplifies the audio signal from the volume circuit 31. The speaker 33 is an amplifier circuit 3
The audio signal from 2a is output as audio. The microphone 34 inputs voice to the wireless telephone as a voice signal. The amplification circuit 32b amplifies the audio signal from the microphone 34.

Next, referring to FIGS. 1, 2 and 3,
The operation of the embodiment will be described. FIG. 2 is a flowchart illustrating the operation of the wireless telephone shown in FIG.
FIG. 3 is an external view of a wireless telephone according to one embodiment. First, an external view of FIG. 3 will be described. In this figure, 33 is a speaker, and 34 is a microphone.

Reference numeral 102 denotes numeric keys 103, 103,...
LCD (Liq) that displays the telephone number etc.
Uid Crystal Device). Reference numeral 105 denotes a volume control key connected to the volume circuit 31 shown in FIG.

First, in step S1, the ten key 1
, Or the volume control key 105 is pressed, and a key input signal is input from the input unit 10 to the state control unit 20.
Is input, the state monitoring unit 21 determines whether the wireless telephone is talking or waiting.

When the state monitoring unit 21 determines that the wireless telephone is busy, the process of step S2 is executed. When the state monitoring unit 21 determines that the wireless telephone is on standby, the process of step S13 described later is performed.

Next, in step S2, the input key determination section 22 determines whether the key input signal input from the input section 10 is a volume signal of the volume control key 105 or a numeric key signal from the numeric keypad 103. If the input signal is a numeric key signal, the state control unit 20
The process returns to step S1.

If the input signal is a volume signal, it is determined whether an instruction to increase the volume of the received voice or an instruction to decrease the volume of the received voice is made. If it is determined that volume up has been instructed, the process proceeds to step S3. If it is determined that volume down has been instructed, the process proceeds to step S9.

If the volume control key 105 is instructed to increase the volume, in step S3, the state comparison / determination unit 23 determines that the current volume value is
Check if the maximum value is reached. If the current volume value is the maximum value of the volume circuit 31, the processing proceeds to step S4.

If the current volume value is not the maximum value of the volume circuit 31, the process proceeds to step S8, where the state control unit 20 controls the volume circuit 31 to reduce the volume of the received voice by a predetermined amount (for example, one level). ), And return to step S1.

If the current volume value has reached the maximum, in step S4, the volume of the received voice is further increased, and confirmation information as to whether or not the call mode of the wireless telephone is set to the hands-free call mode is displayed on the LCD. It is displayed on the unit 102 and the like. Then, the state control unit 20 confirms with the speaker whether or not the call mode has been changed, and instructs to input a password or the like if the call mode needs to be changed.

Next, in step S5, the speaker operates the input unit 1 in accordance with the confirmation information displayed on the LCD display 102.
A password is input from the ten key 103 of “0”. The password collation unit 25 performs collation of the password input from the numeric keypad. If the password input by the password matching unit 25 does not match the password stored in the password matching unit 25 in advance, the process returns to step 1 with the volume value remaining at the maximum value.

The collation result of the password collation unit 25 is as follows:
If the input password matches the password stored in the password matching unit 25 in advance, the process proceeds to step S6.

Next, in step S6, the state changing unit 24 displays on the LCD display unit 102 or the like a selection as to whether or not to set the hands-free call mode, and instructs the speaker. Then, according to the confirmation information displayed on the LCD display unit 102, the speaker inputs a password from the ten keys 103 of the input unit 10. The password collation unit 25 performs collation of the password input from the numeric keypad.

Here, as a result of the collation by the password collation unit 25, if the hands-free conversation mode is not selected in the conversation mode, the state control unit 20 executes the processing of step S1 while the volume value of the received voice remains at the maximum. Return to Also, as a result of the verification in the password verification unit 25, if the hands-free communication mode is selected in the communication mode, the process of the state control unit 20 proceeds to step S7.

Next, in step S7, the state changing section 24 further raises the volume of the received voice, and the echo canceller control section 26 activates an echo canceller (not shown). Then, the state changing unit 24 changes the call mode of the wireless telephone from the handset call mode to the hands-free call mode.

Thereafter, the process of the state control unit 20 returns to step S1. Here, the echo canceller control unit 26
However, the speaker 33 activates the echo canceller.
And the acoustic echo generated between the microphone and the microphone 34.

If the input key determination section 22 determines in step S2 that the volume signal from the volume control key 105 is an instruction to lower the volume, the flow advances to step S9.

Then, in step S9, the state comparison / determination section 23 checks whether or not the current volume value is the minimum value of the volume in the volume circuit 31. Then, when the state comparison / determination unit 23 confirms that the sound volume has reached the minimum value, the processing of the state control unit 20 returns to step S1 as it is as the minimum volume. If the state comparison / determination unit 23 determines that the value is not the minimum value, the process proceeds to step S10.

Next, in step S10, the state comparison / determination section 23 checks whether the current call mode of the wireless telephone is the hands-free call mode. Here, when the state comparison determination unit 23 determines that the current call mode is not the hands-free call mode, the process of the state control unit 20 proceeds to step S12.

Next, in step S12, the state changing section 24 sends a control signal to the volume circuit 31 to lower the volume of the received voice by a predetermined amount (for example, one level). Then, the processing of the state control unit 20 is performed in step S21.
Return to

When the state comparison / determination section 23 determines that the call mode of the wireless telephone is the hands-free call mode, the processing of the state control section 20 proceeds to step S1.
Proceed to 1.

Next, in step S11, the state changing section 24 returns the volume of the received voice to the maximum value of the volume of the volume circuit 31. Here, the call mode of the wireless telephone is
The state changing unit 24 switches the mode from the handsfree call mode to the handset call mode.

Then, the echo canceller control unit 26
The echo canceller not shown in the figure is stopped, and the state is set to the normal reception sound volume. Thereafter, the process of the state control unit 20 returns to Step S1.

Also, in step S1, when the state monitoring unit 21 determines that the wireless telephone has ended the call, and when the state monitoring unit 21 determines that the wireless telephone is not currently talking, Proceeds to step S13.

Then, in step S13, the state monitoring unit 21 determines whether or not the communication mode of the wireless telephone is the hands-free communication mode at present. And
When the state monitoring unit 21 determines that the call mode of the wireless telephone is not the hands-free call mode, the state control unit 20 holds the current volume value of the received voice and ends the processing.

When the status monitor 21 determines that the current call mode of the wireless telephone is the hands-free call mode, the volume value of the received voice is set to the volume circuit 3.
Return to the maximum value of 1. Then, the echo canceller control unit 2
In step 6, the state of the state control unit 20 is terminated after stopping the echo canceller (not shown) and setting the state to the normal reception sound volume.

Next, an example of the operation of the embodiment will be described with reference to FIG. 1, FIG. 2 and FIG. For example, the speaker is talking in the handset talking mode in the talking mode of the wireless telephone, and the volume level of the received voice is “low”.
It is assumed that there are three levels of “medium” and “large” and that the current level is “medium”.

Here, when the call mode of the wireless telephone is to be switched to the hands-free call mode during a call, the speaker first presses the volume control key
Increase the volume level of the receiving sound. At present, the volume level of the received voice is “medium”, so that the volume level of the received voice is increased by one, and the volume level of the received voice becomes the maximum value in the volume circuit 31.

When the speaker tries to raise the volume level of the received voice again by using the volume control key 105, the volume control of the volume circuit 31 is currently at the maximum level. Check that the call mode of the wireless telephone is changed, not volume control.

Next, the state control unit 20 sends confirmation information as to whether or not to set the hands-free call mode to the LCD display unit 102.
To display the password input screen. Then, the password input by the speaker from the numeric keypad 103 is checked against the password data stored in the password checking unit 25 in advance.

Here, if the password collating unit 25 confirms that the two passwords are the same, LC
The confirmation information displayed on the D display unit 102 shifts to a hands-free call mode selection screen in the call mode.

Here, if the speaker selects the hands-free communication mode on the hands-free mode selection screen on the LCD display unit 102, the communication mode of the wireless telephone is changed to the hands-free communication mode, and the echo canceller is also activated. Therefore, a call can be made without having to own a wireless telephone.

If the call mode of the wireless telephone is not desired to be set to the hands-free call mode, the speaker need not select the hands-free mode on the hands-free mode selection screen on the LCD display unit 102. In this case, the volume of the received voice remains at the maximum value. Further, at the time when the speaker inputs a password from the numeric keys 103, 103,.
The time from when the password input instruction is displayed on the screen 2 until the password input is completed is measured.

If the key input is not performed during a predetermined time, the password collating unit 25 is set so that the passwords do not match. The hands-free call mode can be rejected, and the process can return to step 1.

When the call is ended in the hands-free call mode, the volume of the received voice is returned to the maximum value of the volume circuit 31 at the time of the end of the call. The state control unit 20 returns to the handset call mode.

In other words, the hands-free call mode is effective only during a call, and the speaker can bring the speaker 33 close to the ear during the next call, forgetting that the hands-free call mode is set. The change of the call mode is controlled by the state control unit 20 so that there is no change.

Further, when the talk mode is the hands-free talk mode, the volume control key 1 is used to lower the volume level of the received voice while the speaker is talking on the wireless telephone.
05, the volume value is adjusted to the volume circuit 31
, And the echo canceller control unit 26 stops the echo canceller.

The communication mode is switched by the state control unit 20 from the hands-free communication mode to the normal handset communication mode. Thereafter, similarly, when the volume control key 105 is adjusted to lower the volume level of the received voice, the volume level of the received voice is changed to the state change unit 2.
4 controls the volume circuit 31 to go down one step at a time.

As described above, one embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. The present invention is also included in the present invention. For example, in order to distinguish whether the current call mode of the wireless telephone is the handset call mode or the hands-free call mode, a light emitting diode for each call mode is turned on,
The call mode may be displayed with characters or symbols on the CD display unit 102 so that the call mode can be confirmed.

[0054]

According to the first aspect of the present invention, a microphone connected to a base station via a wireless communication line for collecting a transmission voice and outputting a transmission voice signal, and a reception voice signal When the call state is switched from the handset call mode to the hands-free call mode in a wireless telephone having a speaker that outputs a reception voice to the telephone, the switch from the handset call mode to the hands-free call mode is permitted, and a malfunction of the switch is performed. In order to prevent the password data to be input and the password data set in the storage unit in advance from being provided, password switching means is provided. ,
If the speaker does not enter a key such as a password, the mode cannot be selected, so that there is an effect that switching of the call mode of the wireless telephone due to erroneous operation can be prevented.

According to the second aspect of the present invention, a microphone connected to a base station via a wireless communication line, which collects a transmission voice and outputs a transmission voice signal, and a reception for the reception voice signal In a wireless telephone having a speaker for outputting voice, a state monitoring means for determining a reception waiting state and a call state, an input key determination means for determining a type of an input key signal, and a state change by the key signal. State comparing means for making a decision; state changing means for switching a call state from the handset call mode to the hands-free call mode; and, when switching the call state from the handset call mode to the hands-free call mode, from the handset call mode to the hands-free call mode. Of the password entered to permit Data and password verification means for verifying the password data set in the storage unit in advance, so that a call can be made without adding a dedicated key for switching from the handset call mode to the hands-free call mode. Since the mode can be switched, for the configuration of a wireless telephone having a hands-free call mode,
The number of parts can be reduced, miniaturization and weight reduction are possible, and in the switching state of the call mode of the wireless telephone, the mode selection cannot be performed unless the speaker inputs a key such as a password at this time. This has the effect of preventing switching of the call mode of the wireless telephone based on the communication mode.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless telephone according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the wireless telephone according to one embodiment of the present invention.

FIG. 3 is a front view of the appearance of the wireless telephone according to the embodiment of the present invention.

[Description of Signs] 10 input unit 20 state control unit 21 state monitoring unit 22 input key judgment unit 23 state comparison judgment unit 24 state change unit 25 password collation unit 26 echo canceller control unit 30 non-control unit 31 volume circuits 32a, 32b amplification Circuit 33 Speaker 34 Microphone 102 LCD display 103 Numeric keypad 105 Volume control key

Claims (2)

[Claims] 1. A microphone connected to a base station via a wireless communication line for collecting a transmission voice and outputting a transmission voice signal, and a speaker for outputting a reception voice corresponding to the reception voice signal. In the wireless telephone, when switching the call state from the handset call mode to the hands-free call mode, password data input to permit switching from the handset call mode to the hands-free call mode and to prevent a malfunction of the switch, A wireless telephone comprising a password collating means for collating password data set in a storage unit in advance. 2. A microphone connected to a base station via a wireless communication line for collecting transmission voice and outputting a transmission voice signal, and a speaker for outputting a reception voice corresponding to the reception voice signal. In the wireless telephone, state monitoring means for determining a reception waiting state and a call state; input key determination means for determining the type of a key signal to be input; state comparison means for determining a state change based on the key signal; When switching the call state from the handset call mode to the hands-free call mode, the first data of a password input to permit switching from the handset call mode to the hands-free call mode and to prevent a malfunction of the switch, A password collating unit for collating the second data of the password set in the storage unit; Radio telephone, characterized in that it comprises a state changing means for switching the communication state from the set call mode to a handsfree call mode.