JPH04287461A - Telephone set - Google Patents

Abstract

PURPOSE:To secure talking in a proper sound volume by detecting a talking sound volume at taking and comparing it with a reference value and adjusting an output sound volume based on the result of comparison. CONSTITUTION:A handset 10 is connected to a speech circuit 4 of a telephone set 1 via a sound volume detection circuit 5 and the sound volume detection circuit 5 converts a detected speech sound volume level into a digital signal and gives the digital signal to a central control circuit 2 as a speech sound volume data. The central control circuit 2 has two predetermined reference values and gives a command to a sound volume adjustment circuit 3 in a way that the data is decreased when it is more than the reference value and the data is increased when it is less than the reference value and the sound volume adjustment circuit 3 controls the gain of an amplifier in the speech circuit 4. Thus, the output sound volume is automatically adjusted by detecting the sound volume for each talking and suitable talking is attained without too large sound volume resulting in astonishment or too small sound volume resulting in overhearing.

Description

[Detailed description of the invention]

[Purpose of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having an automatic volume adjustment function.

0002

2. Description of the Related Art Telephones having an electronic volume control function have been known. This type of phone requires volume up (
The controller is provided with an up key and a volume down key, and based on the operation of these keys, the control section operates according to the flowchart of FIG. 3 to adjust the volume by, for example, controlling the gain of the amplifier.

The operation based on the flowchart of FIG. 3 will be explained. First, the control unit detects whether the volume adjustment key has been operated (pressed) (301). Here, when the operation is performed, a timer is set (302), and it is detected whether or not the volume adjustment key has been operated (pressed down).
303). Then, it is detected whether the time has elapsed before the end of the operation (304), and when the time has elapsed, whether the operated volume adjustment key is the volume up key or the volume do
It is detected whether it is a wn key (305). volume do
The wn key lowers the volume by a specified amount (306
), if it is the volume up key, the volume is increased by a predetermined amount (307), and the process returns to step 302. On the other hand, if the operation of the volume adjustment key ends before the time is up (303), the process ends. In addition to the above-mentioned techniques, there are also known techniques for adjusting the volume based on the number of times the volume adjustment key is operated.

0004

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional telephones, when the call is ended after the above-mentioned volume adjustment and the next call is made, the volume is fixed, for example. Last time I talked to a long-distance person, and now I want to talk to a short-distance person, I get surprised because the volume is too loud. When making a call, the volume was too low and people sometimes missed the call.

[0005] The present invention was made to solve the problems of the conventional telephone set, and its purpose is to:
To provide a telephone set which can automatically adjust the output volume by detecting the volume for each call and ensure calls at an appropriate volume. [Structure of the invention]

[0006]

[Means for Solving the Problems] The telephone of the present invention is a telephone equipped with means for adjusting the output volume based on an instruction given.

[0007] Volume detection means for detecting call volume;

0
Comparing means having a reference value for a call volume and comparing the call volume detected by the sound volume detection means with the reference value;

[0009] The present invention is characterized in that it includes a control means for controlling the means for adjusting the output volume to a predetermined output volume based on the comparison result of the comparison means.

0010

[Operation] According to the telephone set having the above configuration, the call volume is detected during a call and compared with a reference value, and a volume that is too loud or too low is detected. In such a case, the output volume is controlled to a predetermined volume, making it possible to talk at a normal volume level.

[0011]

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 of a telephone 1 according to an embodiment of the present invention. The telephone 1 is equipped with a telephone communication circuit 4, and the telephone communication circuit 4 is connected to a telephone line 12. Further, a loudspeaker 11 is connected to the telephone circuit 4,
A handset 10 is connected via a volume detection circuit 5 . The volume detection circuit 5 detects the volume of a call from the other party via the call circuit 4 as a level. This level is converted into digital data and is sent as speech volume data via bus 6 to central control circuit 2, which is a component of a computer. The bus 6 includes a volume adjustment circuit 3, a volume up key 8,
A volume down key 9 and a dial key 7 are connected. The volume adjustment circuit 3 controls the gain of the amplifier in the communication circuit 4 based on instructions from the central control circuit 2. A program of the flowchart shown in FIG. 2 is stored in the central control circuit 2, and the central control circuit 2 operates based on this program.

[0012] In other words, if the other party answers after making a call, the
The program shown in the flowchart is started, and the central control circuit 2 detects whether the volume adjustment key has been operated (pressed) (201). Here, when the operation is detected, a timer in the central control circuit 2 is set (202), the end of the operation of the volume adjustment key is detected (203), and it is detected whether the timer has expired with the operation continued (204). Here, when the time is up, it is detected whether the operated volume adjustment key is the volume up key 8 or the volume down key 9 (2
05). If it is detected that the volume down key 9 is being operated, the volume is lowered by a predetermined amount (206).
On the other hand, if it is detected that the volume up key 8 is being operated, the volume is increased by a predetermined amount (207), and in either case, the process returns to step 202. On the other hand, if the volume adjustment key is not operated (201), the volume detection circuit 5
The volume data sent from the computer is taken in and the volume is detected (208). The central control circuit 2 has two predetermined reference values. One of these reference values is data corresponding to the volume when the volume is too loud and it is difficult to talk, and the other one is data corresponding to the volume when the volume is too low and it is difficult to talk. Based on these reference values, it is detected whether the volume is above (or below) the reference value (209). An instruction is given to the volume adjustment circuit 3 to lower the volume if it is above the reference value, and to raise it if it is below the reference value, returning the volume to the predetermined value (21
0), proceed to step 211. In step 211, the operation of the volume adjustment key is detected, and if there is no operation, the process goes to step 208, and if there is an operation, the process goes to step 202.
You can proceed to

[0013] In this embodiment, two reference values are used,
Control is performed depending on whether the first reference value is exceeded or the other reference value is below, but if necessary, it may be possible to set one reference value and control only to lower or raise the volume. .

[0014]

[Effects of the Invention] As explained above, according to the present invention, the volume is automatically returned to a predetermined value, so there is no need to be surprised because the volume is too high or to miss hearing because the volume is too low. You can make calls.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of an embodiment of the present invention.

FIG. 3 is a flowchart of a conventional example.

[Explanation of symbols]

Claims (2)

[Claims] Claim 1: A telephone comprising means for adjusting an output volume based on a given instruction, comprising a volume detection means for detecting a call volume, and a reference value for the call volume, the telephone set having a reference value for a call volume detected by the volume detection means. The present invention is characterized by comprising a comparison means for comparing the call volume with the reference value, and a control means for controlling the means for adjusting the output volume to a predetermined output volume based on the comparison result of the comparison means. telephone. 2. The comparison means has first and second reference values, and the control means lowers the output volume when the comparison means detects that the call volume exceeds the first reference value. 2. The telephone according to claim 1, wherein the telephone is controlled to increase the output volume when the comparison means detects that the call volume is lower than the second reference value.