JPH06237202A - Portable telephone set - Google Patents

Abstract

PURPOSE:To improve handleability by adjusting automatically the sound volume in accordance with whether a hand-free adaptor exists or not. CONSTITUTION:When an adaptor B is not connected to a connector 40, a signal processing part 20 reads a set value of a RAM 31, and controls electronic volumes 28, 32. An alarm signal from a tone generator 27 passes through a base band control part 24, the electronic volume 28 and a selector 30 and is sent to a loudspeaker 23. A sound signal expanded by the control part 24 is outputted from a loudspeaker 22. When it is decided that the adaptor B is installed, the volumes 28, 32 are controlled by an output adjustment value of the RAM 31. The alarm signal from the generator 27 is sent out to the connector 40 from a mixer 29, and outputted from a loudspeaker 101 through an amplifier 103 of the adaptor B. The sound signal expanded by the control part 24 is adjusted by the volume 28, and thereafter, passes through the amplifier 103 through the mixer 29 and the connector 40 and is outputted from the external loudspeaker 101. In such a way, the sound volume adjustment at the time of detachment and attachment is obviated and the handleability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a portable telephone in which a hands-free adapter can be attached and detached for use.

[0002]

2. Description of the Related Art Recently, a mobile phone has been developed in which a hands-free adapter is attached to a mobile phone body so that the mobile phone can be used as a hands-free phone. by the way,
In addition to the ear speaker that outputs the voice signal received from the base station, this type of mobile phone has a DTMF signal (tone signal) generated by the main body of the phone, an electronic ringing sound, a key operation sound (hereinafter referred to as an alarm signal). ) Is output by an alarm speaker.

When such a mobile phone is used by attaching it to a hands-free adapter, since the hands-free adapter usually has only one external speaker, the phone body is not exposed from the external speaker of the adapter. The audio signal of the adjusted level and the alarm signal are output together. Therefore, with the adapter attached in this way, if you operate the volume of the telephone body to adjust the output level of the audio signal and use it, the audio signal of the ear speaker on the telephone body side will be The output level of changed, and it was necessary to readjust it.

Therefore, in order to solve such a problem,
It is possible to set a volume on the handsfree adapter and adjust it on the adapter side, but there is a problem that it is not easy to use because the audio signal and the alarm signal cannot be adjusted independently.

[0005]

DISCLOSURE OF THE INVENTION The present invention proposed in view of the above circumstances automatically adjusts the volume of a voice signal and an alarm signal when a hands-free adapter is attached and detached. The purpose of the present invention is to provide a mobile phone that is easy to use.

[0006]

DISCLOSURE OF THE INVENTION The present invention proposed to achieve the above object is a mobile phone in which a hands-free adapter can be mounted, and determines whether or not the adapter is mounted and the type. Discriminating means, storage means for storing the output adjustment values of the voice signal and the alarm signal based on the discrimination result of the discriminating means, output adjusting means for adjusting the output of the voice signal and the alarm signal based on the output adjustment value, And an updating unit for updating the output adjustment value stored in the storage unit.

In such a portable telephone of the present invention, the output adjustment value for the voice signal and the alarm signal in the state where the adapter is not attached, and the output adjustment value set in accordance with the type of the adapter when the adapter is attached. Since, and are stored in the storage means as a data table, the determination means controls the output adjustment means by reading the output adjustment value stored in the data table when determining whether or not the adapter is mounted and the type of the adapter. . Also,
When the output adjustment value is changed, the updating means updates the output adjustment value stored in the storage means.

[0008]

In the mobile telephone according to the present invention, when the adapter is attached, the determining means reads out the output adjustment value stored in advance according to the type of the adapter from the storage means and operates the output adjusting means. , Control the output level of voice signal and alarm signal.

When the adapter is not attached,
The discrimination means reads the output adjustment value from the storage means, operates the output adjustment means, and controls the output levels of the audio signal and the alarm signal to the adjustment value. Furthermore, when the audio signal or the alarm signal is adjusted while the adapter is attached or detached, the updating means rewrites the corresponding output adjustment value stored in the storage means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of a mobile phone A according to the present invention. The mobile phone A has a connector 4
0, a hands-free adapter B can be attached to the connector 40, and the adapter B includes an external speaker 101 and an external microphone 102.

As shown in the figure, the signal processing unit 20 includes an ear speaker 22 and an alarm speaker 23.
The microphone 33 is connected via 0 to the selector 34. M is a rewritable RAM that constitutes storage means
As shown in FIG. 5, the RAM 31 is a memory including the adjustment values of the voice signal and the alarm signal, the types B (# 1) and B (# 2) of the hands-free adapter, and the presence / absence of attachment. It is stored as a data table according to.

Reference numeral 24 is for expanding the voice signal separated from the signal demodulated by the transmission / reception control section 25, and for microphone 3
Reference numeral 26 is a baseband control unit for compressing the audio signal input through 3, and 26 is an antenna. Further, the signal processing unit 20 includes an alarm signal, a tone signal, and a key operation unit 2
In order to generate the key operation sound of 1, the electronic volume 32
A tone generator 27 and an electronic volume 28 that can adjust the output level of the audio signal are connected. These electronic volume controls 28, 32 constitute output adjusting means C,
Volume adjusting means 28a, 28 provided in the mobile phone A
By operating b (see FIG. 3), it is possible to individually adjust each of the audio signal and the alarm signal.

On the other hand, the external speaker 1 is attached to the connector 40.
01 audio output terminal section 41, external microphone 102 audio input terminal section 42, etc., and an adapter detection terminal section for enabling the signal processing section 20 to directly determine the type of adapter B and whether or not the adapter B is attached. 43 is provided. Here, the adapter detection terminal unit 43 may use a combination of the logic levels of two terminals, and the voltage level applied to one terminal is decoded by an A / D converter (not shown), and the adapter is detected. The structure may be such that it is possible to determine the type and presence / absence of wearing.

FIG. 2 is a functional block diagram showing a main part of the mobile phone A of the present invention. A discrimination means 20A for discriminating presence / absence and type of the adapter B mounted, and output adjustment stored in the storage means M. The updating means 20B for updating the value is composed of a signal processing section 20 described later, and C is an alarm signal based on the output adjustment value stored in the storage means M.
It is an output adjusting means for controlling the output of the audio signal.

FIG. 3 is an external view showing an example of the mobile phone A,
FIG. 4 is an external view showing an example of the hands-free adapter B. The telephone A in the example is set on the adapter B mounted on the automobile and driven by the power source from the cigarette lighter D. In the mobile phone A of the present invention as described above, when the adapter B is not connected to the connector 40, the signal processing unit 20 determines this state and reads the set value stored in the RAM 31.
The electronic volume 28 and the electronic volume 32 are controlled.
As a result, the alarm signal output from the tone generator 27 is sent to the alarm speaker 23 via the baseband controller 24, the electronic volume 28 and the selector 30. The audio signal expanded by the baseband control unit 24 is adjusted by the electronic volume control 28, and then the ear speaker 22 is transmitted via the selector 30.
Will be output.

On the other hand, when the signal processing unit 20 determines that the adapter B is connected to the connector 40, that is, the adapter B is attached, the signal processing unit 20
Controls the electronic volume 28 and the electronic volume 32 by reading the output adjustment value stored in the RAM 31 based on the type of the adapter B. As a result, the alarm signal output from the tone generator 27 is directly sent from the mixer 29 to the connector 40, and is output from the external speaker 101 through the amplifier 103 of the adapter B from here. The audio signal expanded by the baseband controller 24 is adjusted by the electronic volume control 28, then sent directly from the mixer 29 to the connector 40, and then output from the external speaker 101 through the amplifier 103 of the adapter B. .

The method of adjusting the audio signal and the alarm signal can have the following modes. 1) During standby, operate the function keys on the mobile phone to select the volume adjustment mode. Thereafter, the volume adjusting means, that is, the up and down keys 28a and 28b (see FIG. 3) are operated to adjust the voice level and the alarm signal independently. 2) The alarm signal is adjusted if the up and down keys are operated during standby, but the voice level can be adjusted by operating the up and down keys during a call.

According to such a mobile phone, when the adapter B is attached, the up and down keys 28a and 28b provided on the key operation portion 21 by the user according to his or her preference.
The output levels of the audio signal and the alarm signal can be adjusted individually by operating the, etc., but when adjusted in this way, the output adjustment value stored in the storage means M is updated.

Steps 100 to 103 in FIG. 6 are flowcharts showing the basic operation of the mobile phone of the present invention.

[0020]

As can be understood from the above description, according to the portable telephone of the present invention, a voice signal and an alarm signal are respectively generated when the hands-free adapter is attached and detached. Since each volume is automatically adjusted, it eliminates the hassle of having to adjust the volume when the adapter is attached or detached, and is easy to use.

[Brief description of drawings]

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

FIG. 2 is a functional block diagram showing a main part of the mobile phone of the present invention.

FIG. 3 is an external view showing an embodiment of a mobile phone of the present invention.

FIG. 4 is an external view showing an example of a hands-free adapter.

FIG. 5 is a diagram showing a data table storing set values of an electronic volume control means.

FIG. 6 is a flowchart illustrating a basic operation of the mobile phone of the present invention.

[Explanation of symbols]

 A ... Mobile phone of the present invention B ... Hands-free adapter C ... Output adjusting means 20 ... Signal processing unit 20A ... Discriminating means 20B ... Updating means 27 ... Tone generator 28. ..Electronic volume M ... Storage means 40 ... Connector 43 ... Adapter detection terminal section 101 ... External speaker

Claims (1)

[Claims] 1. A mobile telephone capable of mounting a hands-free adapter, which comprises a discrimination means for discriminating presence / absence and type of the adapter, and a voice signal and an alarm signal based on the discrimination result of the discrimination means. A storage unit for storing the output adjustment value; an output adjustment unit for adjusting the output of the audio signal and the alarm signal based on the output adjustment value; and an updating unit for updating the output adjustment value stored in the storage unit. A mobile phone characterized by that.