TWI266551B - And apparatus for identifying the type of a headphone - Google Patents

And apparatus for identifying the type of a headphone

Info

Publication number
TWI266551B
TWI266551B TW93116296A TW93116296A TWI266551B TW I266551 B TWI266551 B TW I266551B TW 93116296 A TW93116296 A TW 93116296A TW 93116296 A TW93116296 A TW 93116296A TW I266551 B TWI266551 B TW I266551B
Authority
TW
Taiwan
Prior art keywords
headphone
signal
type
encoding
identifying
Prior art date
Application number
TW93116296A
Other versions
TW200541370A (en
Inventor
Chih-Wen Huang
Original Assignee
Mitac Int Corp
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 Mitac Int Corp filed Critical Mitac Int Corp
Priority to TW93116296A priority Critical patent/TWI266551B/en
Publication of TW200541370A publication Critical patent/TW200541370A/en
Application granted granted Critical
Publication of TWI266551B publication Critical patent/TWI266551B/en

Links

Abstract

A method and apparatus for identifying the type of a headphone is applied a phone jack. When the head phone insert the phone jack, a signal in a stand-encoding signal set occurs variation with high or low voltage potential based on a trigger of insertion terminal of the headset. These signal in the stand-encoding set is compared with a signal encoding corresponding table in sequence to identify the type of the headphone inserted in the phone jack, and to start the function belong to the headphone.
TW93116296A 2004-06-07 2004-06-07 And apparatus for identifying the type of a headphone TWI266551B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93116296A TWI266551B (en) 2004-06-07 2004-06-07 And apparatus for identifying the type of a headphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93116296A TWI266551B (en) 2004-06-07 2004-06-07 And apparatus for identifying the type of a headphone

Publications (2)

Publication Number Publication Date
TW200541370A TW200541370A (en) 2005-12-16
TWI266551B true TWI266551B (en) 2006-11-11

Family

ID=38191597

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93116296A TWI266551B (en) 2004-06-07 2004-06-07 And apparatus for identifying the type of a headphone

Country Status (1)

Country Link
TW (1) TWI266551B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8467828B2 (en) 2007-01-05 2013-06-18 Apple Inc. Audio I O headset plug and plug detection circuitry
US8629580B2 (en) 2011-02-09 2014-01-14 Apple Inc. Audio accessory type detection and connector pin signal assignment
TWI511034B (en) * 2013-02-21 2015-12-01 Acer Inc Electronic device and control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8467828B2 (en) 2007-01-05 2013-06-18 Apple Inc. Audio I O headset plug and plug detection circuitry
US9301045B2 (en) 2007-01-05 2016-03-29 Apple Inc. Audio I O headset plug and plug detection circuitry
US9838780B2 (en) 2007-01-05 2017-12-05 Apple Inc. Audio I O headset plug and plug detection circuitry
US8629580B2 (en) 2011-02-09 2014-01-14 Apple Inc. Audio accessory type detection and connector pin signal assignment
TWI511034B (en) * 2013-02-21 2015-12-01 Acer Inc Electronic device and control method

Also Published As

Publication number Publication date
TW200541370A (en) 2005-12-16

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Legal Events

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