JPH05183618A - Telephone set - Google Patents

Abstract

PURPOSE:To adjust the sound volume with simple configuration by detecting the pressing force of a receiver to an ear, thereby controlling the sound volume. CONSTITUTION:A pressure sensor 7 is provided around a speaker 2 to detect the pressure of the speaker 2 onto the ear of the user. The gain of a built-in amplifier is controlled in response to the result of detection and the sound volume of a voice of an opposite party through the speaker 2 is adjusted. Thus, the sound volume is properly adjusted with simple configuration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone, and is suitable for application to, for example, a mobile telephone.

[0002]

2. Description of the Related Art Conventionally, many telephones cannot adjust the volume of the handset, and therefore, when the other party's voice is low during a call, when the call is far, or when the surrounding noise is loud, The difficulty was that the voice was hard to hear.

For this reason, some telephones are provided with a volume switch or a two- to three-stage switching switch for adjusting the volume of the handset. If such a telephone is used, the volume of the handset can be adjusted by operating the volume or the switching switch according to the call state or the ambient noise, etc., and the usability for the user can be improved.

[0004]

However, in a telephone having such a structure, it is necessary to operate a volume or a two- or three-stage switching switch in order to adjust the volume of the handset, and the user's operation becomes complicated accordingly. There was a problem that many mistakes were made. In addition, there is a risk that the volume or the 2- or 3-stage switching switch will remain the same as it was when it was last used, which may make you feel uncomfortable the next time you use it.

Further, in such a configuration, it is necessary to dispose a volume or a two- to three-stage switching switch for adjusting the volume of the handset, which complicates the configuration, and may hinder miniaturization and weight reduction. Especially for mobile phones, it is preferable that the number of operating units is as small as possible.

The present invention has been made in consideration of the above points, and proposes a telephone capable of adjusting the volume of a handset according to a call state with a simple structure that does not require a dedicated operating means. Is.

[0007]

In order to solve such a problem, according to the present invention, a pressure detecting means 7 is provided at a portion of the handset 2 which comes into contact with an ear and detects a pressing force of the ear against the handset 2, and a pressure detecting means. Volume control means 10 and 16 for controlling the volume of the handset 2 are provided according to the detection result S5 of the means 7.

[0008]

Function: The pressure of the ear against the handset 2 is detected by the pressure detecting means 7.
And the volume control means 10 and 16 control the volume of the handset 2 in accordance with the pressing force, so that the volume of the handset 2 can be adjusted according to the call state.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a mobile phone according to the present invention as a whole, and a speaker 2 as a receiver is provided on the front surface.
Further, a microphone 3 as a transmitter is provided, an operation key 4 and a display 5 are provided at an intermediate portion thereof, and a retractable antenna 6 is provided at an upper portion.

As a result, if the user extends the antenna 6, operates the operation key 4 and inputs a desired telephone number while checking it on the display 5, the user can talk with a desired party at any place. There is.

As shown in FIG. 2, in which parts corresponding to those in FIG. 1 are assigned the same reference numerals, the mobile phone device 1 has a structure in which a controller 10 having a microcomputer controls a modulator / demodulator 11, and a user uses a microphone 3 through a microphone 3. Input transmission voice S1
Is amplified by the first amplifier 12, modulated by the modulator / demodulator 11, amplified by the high power amplifier 13 as the transmission signal S2, and then transmitted from the antenna 6 through the duplexer 14.

The received signal S received from the antenna 6
3 is a low noise amplifier 15 through the duplexer 14.
The received voice S4 is amplified by the second amplifier 16 and transmitted to the user through the speaker 2.

In the case of the mobile phone 1, a pressure sensor 7 is arranged around the speaker 2 to detect the pressure with which the user's ear presses the speaker 2, and the speaker 2 is pressed according to the pressure. It is designed to control the volume.

That is, when it is difficult for a human being to hear the other party's voice during a call, the human being instinctively presses his / her ear against the speaker 2 to control the speaker 2 to a normal volume when there is no pressing force on the speaker 2, When there is a pressing force, the volume of the speaker 2 is increased according to the pressing force.

In practice, the sensor output S5 of the pressure sensor 7 is
It is input to the controller 10 through the analog digital conversion circuit 17, and the controller 10 sends out control data S6 for controlling the gain of the second amplifier 16 according to the sensor output.

The control data S6 is input to the second amplifier 16 as a control signal S7 through the digital analog conversion circuit 18. As a result, in accordance with the control signal S7, the second
The gain of the amplifier 16 is controlled so that the volume of the speaker 2 is controlled according to the sensor output.

According to the above construction, the pressure sensor 7 is arranged around the speaker 2, the pressure sensor 7 detects the pressing force of the ear against the speaker 2, and the volume of the speaker 2 is controlled according to the pressing force. By doing so, it is possible to realize the mobile phone 1 capable of adjusting the volume of the speaker 2 according to the call state with a simple configuration that does not require special operations or switches.

Thus, even if the other party's voice is low during a call, the telephone is far, or the surrounding noise is loud, the volume of the other party's voice becomes loud just by pressing the speaker 2 against the ear. By making it easier to hear, the usability for the user can be significantly improved.

In the above-mentioned embodiments, the case where the present invention is applied to the portable telephone has been described, but the present invention is not limited to this, and is widely applicable to general telephones and is suitable.

[0021]

As described above, according to the present invention, the pressure detecting means detects the pressing force of the ear against the handset, and the volume control means controls the volume of the handset according to the pressing force. A telephone that can adjust the volume of the handset according to the call state can be realized with a simple configuration that does not require special operations or switches.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an appearance of an embodiment of a mobile phone according to the present invention.

2 is a block diagram showing a circuit configuration of the mobile phone of FIG.

[Explanation of symbols]

1 ... mobile phone, 2 ... speaker, 3 ... microphone, 4
…… Operation keys, 5 …… Display, 6 …… Antenna,
7 ... Pressure sensor, 10 ... Controller, 11 ... Modulator / demodulator, 12, 13, 15, 16 ... Amplifier, 14 ...
Deplexer.

Claims (1)

[Claims] 1. A pressure detecting means, which is arranged at a portion of the earpiece that comes into contact with an ear and detects the pressing force of the ear against the earpiece, and the volume of the earpiece is controlled according to the detection result of the pressure detecting means. A telephone having a volume control means.