JPH07235970A - Calling sound volume adjusting device for portable telephone set - Google Patents

Abstract

PURPOSE:To easily recognize a call tone and to prevent the call tone from being increased as an unpleasant large sound volume by controlling the magnitude of a calling sound volume by providing difference between a calling sound volume change ratio in accordance with a manipulated variable when an earphone is connected to a portable telephone set and the one when it is not. CONSTITUTION:When a user operates an operating key 3 to change the calling sound volume, key operating information is sent to a microprocessor 4 as a key-in signal. The processor 4 stores a calling sound volume value selected by the user, and also, sends a gain control signal to an electronic volume 5 according to the value, however. at this time, the processor 4 discriminates whether or not the earphone is connected by the output signal of the presence/ absence detector 6 of the earphone, and sets a gain when the earphone is connected different from that when it is not connected on the electronic volume 5. The electronic volume 5 applies amplification or attenuation according to the gain control signal from the microprocessor 4 to a call tone signal, and sends it out to the call tone output device 7 of a main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone having a connection terminal for an earphone, and more particularly to a ringing volume adjusting device.

[0002]

2. Description of the Related Art A conventional technique is disclosed in JP-A-63-54025.
As described in Japanese Patent Publication No. JP-A-2003-264, the volume is adjusted independently for different output devices.

[0003]

When adjusting the ringing volume using the above-mentioned conventional technique, the user independently adjusts the ringing volume to the ring tone output device and the earphone provided in the mobile phone body. There is a problem that it is necessary to perform it and the operation is troublesome.

On the other hand, in order to save the troublesome operation,
The ringing tone output device and earphones provided in the mobile phone body are not individually adjusted, but the ringing tone output device and the earphones provided in the mobile phone body are adjusted by adjusting the ringing volume once. Adjusting both volume levels at the same time is established as an existing technology. However, in this case, as shown in FIG. 3, the relationship between the user's ringing sound volume selection value and the gain setting of the electronic volume for amplifying / attenuating the ringing sound signal is that one gain is defined for one selection value, The ringing volume change ratio corresponding to the amount of operation when the volume of the ringing volume is operated (turn the knob or select a value as shown in Fig. 4) is the ringing tone output from the ringing tone output device equipped in the mobile phone body. The output was the same as that output from the earphones. As a result, the following problems occurred.

Generally, the ringing sound volume is set so that an appropriate ringing sound volume can be obtained at a "certain value" (usually the center value) among the selected values for adjusting the sound volume. (While the ring tone sounds from the body of the mobile phone and the ring tone sounds from the earphones, the same "certain value" gives an appropriate ring volume.) What is "appropriate ring volume"? When the ringing tone sounds in a quiet environment, it is defined as a volume that a user with normal hearing can easily recognize the ringing tone and does not feel uncomfortable loud volume.

Here, consider a case where the ringing volume is increased in order to deal with a large amount of ambient noise. The ringing volume needs to be increased when the difference between the ringing volume and ambient noise is small and the user has difficulty in recognizing the ringing tone.

It is assumed that earphones are connected to a portable telephone whose ringing volume is increased under the above-mentioned circumstances. Even if the surrounding noise is large when the earphone is used, since the ear is shielded by the earphone, the difference between the ringing sound and the surrounding noise entering the ear is larger than that when the earphone is not used. Therefore, the increase rate of the ringing volume when the earphones are used is often smaller than when the earphones are not used. Nevertheless, the ringing volume is increased at the same rate as when using the earphones, which may result in an unnecessarily loud ringing sound that may even be uncomfortable.

The object of the present invention is to adjust the ringing volume once, and even when the volumes of both the ringing tone output device and the earphone provided in the body of the portable telephone are simultaneously adjusted, the ringing tone emitted from the body of the portable telephone is set. For both the ringing sound and the ringing sound emitted from the earphones, the ringing sound should be easily recognized and the volume should not be uncomfortable.

[0009]

SUMMARY OF THE INVENTION The above object is to obtain a ringing sound volume change ratio corresponding to an operation amount when a user operates the ringing sound volume when the earphone is connected to a portable telephone and when it is not. It is achieved by dividing into two ways.

[0010]

When the user operates the volume of the ringing volume, the ringing volume change ratio corresponding to the amount of operation is divided into two types to increase ambient noise, and when the ringing volume is increased to cope with the noise, earphones are used. When the is connected to the mobile phone, the volume change ratio with respect to the user's operation amount can be reduced as compared with the case where the is not connected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

[0012] Reference numeral 1 is an example of a user-selected value of the ring volume control, and the user can arbitrarily select the volume control according to ambient noise and the like. Reference numeral 2 is an example of setting the gain of the electronic volume, and the gain is set via the microprocessor according to the ringing volume selection value selected by the user. At that time, a difference is provided in the gain change ratio when the user's selection value changes by one step between when the earphone is not connected and when the earphone is connected.

FIG. 2 shows an example of a circuit for realizing the above operation. When the user operates the operation key 3 to change the ringing volume control, the key operation information is sent to the microprocessor 4 as a key-in signal. The microprocessor 4 stores the ringing volume value selected by the user and sends a gain control signal to the electronic volume 5 in accordance with the value. At that time, the microprocessor 4 uses the output signal of the presence / absence detector 6 of the earphone to detect the earphone volume. Is connected to the electronic volume 5, and different gains are set in the electronic volume 5 when the earphones are not connected and when they are connected. The electronic volume 5 amplifies or attenuates the ringing tone signal according to the gain control signal from the microprocessor 4, and the ringing tone output device 7 or the earphone connection jack 8 built in the mobile phone body.
Send to. Each circuit in FIG. 2 can be sufficiently realized by the existing technology.

[0014]

According to the present invention, the ringing volume change ratio corresponding to the operation amount when the user operates the ringing volume is smaller when the earphone is connected to the portable telephone than when it is not. Because it can be made smaller
At any selected volume adjustment value (in the case of the ringing volume knob, the position of the knob) as a result of the user performing the above operation according to the ambient noise, the ringing sound emitted from the mobile phone body and the earphones are emitted. With regard to both of the ringing tones, the ringing tone can be easily recognized, and the volume can be prevented from becoming uncomfortable.

[Brief description of drawings]

FIG. 1 is a diagram showing a gain setting example of an electronic volume corresponding to a user-selected value of a ringing volume control.

FIG. 2 is a diagram showing an example of a circuit block for realizing a ringing volume adjusting device for a mobile phone.

FIG. 3 is a diagram showing a gain setting example of an electronic volume corresponding to a user-selected value of a conventional ringing volume control.

FIG. 4 is a diagram showing an example of a display unit and operation keys when adjusting a ringing volume.

[Explanation of symbols]

 1 ... Example of user selected value of ringing volume, 2 ... Example of gain setting of electronic volume, 3 ... Operation keys, 4 ... Microprocessor, 5 ... Electronic volume, 6 ... Earphone presence / absence detector, 7 ... Ring tone output 8 ... Earphone connection jack, 9 ... Conventional electronic volume gain setting example, 10 ... Display, 11 ... Ring volume selection value, 12 ... Current setting value.

Claims (1)

[Claims] 1. A connection terminal for an earphone and a ring tone output device, and a built-in electronic volume for adjusting the ring volume,
Also, when the earphone is ringing sound when connected to the mobile phone, the earphone shows the ringing volume change ratio corresponding to the operation amount when the user operates the volume of the ringing volume in the mobile phone. A ringing volume adjusting device for a mobile phone, which is characterized in that a difference is provided between when it is connected to and when it is not connected.