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Sound volume controlling system and method

A volume control and volume technology, which is applied in the direction of gain control, amplification control, artificial gain control, etc., can solve the problems of taking a lot of time and it is difficult for users to change the volume quickly, so as to achieve user-friendly operation, solve mute processing, and operate More effect

Inactive Publication Date: 2009-06-17
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

[0003] As this type of traditional volume output device, when the user wants to mute, a mute button needs to be added, and it is impossible to use a few buttons to realize both volume adjustment and mute control.
[0004] In addition, according to the conventional volume adjustment device, when adjusting the volume, the volume must be changed step by step from the minimum to the maximum, and it will inevitably take a lot of time to operate the buttons for adjustment, and it is difficult to quickly change the volume according to the user's requirements.

Method used

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  • Sound volume controlling system and method

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Embodiment Construction

[0016] As shown in FIG. 1 , it is a hardware architecture diagram of the volume control system of the present invention. The system includes a key input unit 1 , a Microprogrammed Control Unit (MCU) 2 , and a Volume Effect Integrated Circuit (Volume Effect Integrated Circuit) 3 . In this embodiment, the key input unit 1 includes an up scroll key and a down scroll key, which are used to respond to user operations and send control signals corresponding to the operations to the microprogram control unit 2 . The microprogram control unit 2 is used to control the sound effect integrated circuit 3 to adjust the volume according to the control signal output by the key input unit 1 and the continuous sending time of the control signal, which includes a central processing unit (CPU) 20, a pulse width modulation pin (Pulse-Width Modulation Pin) 21 , a timer 22 and a memory 23 . Wherein, the central processing unit 20 is used for receiving the volume control signal, and the control sign...

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Abstract

A sound volume control system includes a key input unit, a microprogrammed unit and a sound effect IC, among which, the key input unit responds to the user operation and sends control signals corresponding to the operation of the microprogrammed unit to the unit, which receives said control signal and generates a PWM wave with a related duty ratio according to the comparison of the continued delivered time of said control signal with a preset period of time to control the sound effect IC to regulate the volume, when the continued deliver time is smaller or equal to said preset time, then the volume is adjusted with one as the unit, if it is greater than the time, the mute function is executed or the volume is regulated with 10 as a unit.

Description

【Technical field】 [0001] The present invention relates to a volume control system and method, in particular to a system and method for controlling volume according to the duration of operation keys. 【Background technique】 [0002] Hitherto, various audio output devices for amplifying audio signals from combined audio signal sources or connected audio signal sources to drive speakers have been developed. This type of device is called an "audio amplifier", and the output level for adjusting the volume output from a connected speaker is adjusted by operating the volume adjustment operation part, and by transmitting a volume adjustment command from a remote control device . Audio output devices such as televisions, audio systems, etc. usually use audio amplifiers to amplify audio signals. The audio output device is built in a volume controller, and the volume controller adjusts the volume output by the audio output device according to user operations. [0003] As this type of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03G3/02H03G3/00
Inventor 谢冠宏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD