Volume regulating apparatus and automatic volume regulating method

Inactive Publication Date: 2008-11-26
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the user may also be dealing with other affairs while listening to music, he is often far and sometimes near from the audio equipment, causing the sound that the user hears to be louder from time to time.
In order to achieve a comfortable listening volume, the user must adjust the volume by operating the remote control, which causes inconvenience to the user
Therefore, the existing volume adjustment device cannot automatically adjust the volume according to the change of the distance

Method used

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  • Volume regulating apparatus and automatic volume regulating method
  • Volume regulating apparatus and automatic volume regulating method
  • Volume regulating apparatus and automatic volume regulating method

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Embodiment Construction

[0026] Please refer to FIG. 1 , a volume adjustment device 200 of a preferred embodiment includes an ultrasonic transceiver module 20 , a distance measuring unit 40 , an input unit 42 , a control unit 50 , a memory 60 , a volume adjustment unit 70 , a display 80 and a sound output unit 90 .

[0027] The ultrasonic transceiver module 20 has a certain control range and includes an ultrasonic transmitter 22 , an ultrasonic receiver 24 , a detection unit 26 and a timing unit 28 .

[0028] The ultrasonic transmitter 22 emits an ultrasonic wave within its control range, and sends a time driving signal to the timing unit 28 at the same time.

[0029] After the timing unit 28 receives the time driving signal, the timing unit 28 is set to 0 and starts timing.

[0030] The ultrasonic receiver 24 receives ultrasonic waves reflected from objects within the control range. According to the principle of the Doppler effect, that is, when the ultrasonic wave is reflected by an object moving r...

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Abstract

A volume adjuster comprises a volume adjusting unit and a voice output unit, wherein the volume adjusting unit receives a sound source signal and adjusts the volume of the sound source, and the voice output unit outputs a voice corresponding to the sound source signal. The volume adjuster further comprises a memory for storing the reference volumes corresponding to each listen distance; an ultrasonic transmitter for transmitting ultrasonic wave and generating a time driving unit for receiving and time driving signal and timing; the ultrasonic transmitters reflects the wave; a check unit checks if the frequency of the reflected wave changes, and if the frequency of the reflected wave changes, the timing unit outputs the transmission time from the emission to the receiving of the ultrasonic wave; a ranging unit for calculating a listen distance according to the ultrasonic transmission time and the ultrasonic transmission speed; a controller selecting a reference volume adapted with the listen distance; and the volume adjusting unit adjusting the volume to the reference volume. Additionally, the invention provides a volume automatic adjusting function.

Description

technical field [0001] The invention relates to an audio system, in particular to a volume adjusting device and an automatic volume adjusting method. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's living standards, audio systems are no longer just special equipment for various entertainment venues, and are widely used in families as a device for enjoying music or watching other entertainment programs. Therefore, various audio equipment in the audio system have more and more functions such as television sets, power amplifiers and sound boxes, among which volume adjustment is a common function. [0003] The volume adjustment device of the existing audio equipment is basically provided with different buttons or knobs on the panel of the audio equipment. . [0004] The volume is adjusted by buttons or knobs, and the user must be in close contact with the audio equipment to adjust the volume. Si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H03G3/00G01S15/08
CPCH04S7/302H04S2400/13
Inventor 丁林坤周享平翁世芳庄宗仁
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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