TW200744313A - Automatic gain control device, method, and audio output device therewith - Google Patents

Automatic gain control device, method, and audio output device therewith

Info

Publication number
TW200744313A
TW200744313A TW095117949A TW95117949A TW200744313A TW 200744313 A TW200744313 A TW 200744313A TW 095117949 A TW095117949 A TW 095117949A TW 95117949 A TW95117949 A TW 95117949A TW 200744313 A TW200744313 A TW 200744313A
Authority
TW
Taiwan
Prior art keywords
automatic gain
gain control
audio output
control device
therewith
Prior art date
Application number
TW095117949A
Other languages
Chinese (zh)
Other versions
TWI315938B (en
Inventor
Shih-Fang Wong
Tsung-Jen Chuang
Jun Li
Wen-Jian Cui
Jun-Wei Zhang
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW95117949A priority Critical patent/TWI315938B/en
Publication of TW200744313A publication Critical patent/TW200744313A/en
Application granted granted Critical
Publication of TWI315938B publication Critical patent/TWI315938B/en

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

This invention provide a automatic gain control equipment. The equipment include a input, a output, a multiport switch, attenuation circuit, Sampling Signal circuit, an A/D converter. The device can control the gain of audio signal automatically so that protect audition of user. This invention also provide a audio signal process device and a earphone which include the said equipment.
TW95117949A 2006-05-19 2006-05-19 Automatic gain control device, method, and audio output device therewith TWI315938B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95117949A TWI315938B (en) 2006-05-19 2006-05-19 Automatic gain control device, method, and audio output device therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95117949A TWI315938B (en) 2006-05-19 2006-05-19 Automatic gain control device, method, and audio output device therewith

Publications (2)

Publication Number Publication Date
TW200744313A true TW200744313A (en) 2007-12-01
TWI315938B TWI315938B (en) 2009-10-11

Family

ID=45073171

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95117949A TWI315938B (en) 2006-05-19 2006-05-19 Automatic gain control device, method, and audio output device therewith

Country Status (1)

Country Link
TW (1) TWI315938B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI461070B (en) * 2008-08-29 2014-11-11 Chi Mei Comm Systems Inc Multi function wireless communication device and an audio adjusting method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI461070B (en) * 2008-08-29 2014-11-11 Chi Mei Comm Systems Inc Multi function wireless communication device and an audio adjusting method thereof

Also Published As

Publication number Publication date
TWI315938B (en) 2009-10-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees