TW200514367A - Infrared-ray receiver - Google Patents

Infrared-ray receiver

Info

Publication number
TW200514367A
TW200514367A TW092137623A TW92137623A TW200514367A TW 200514367 A TW200514367 A TW 200514367A TW 092137623 A TW092137623 A TW 092137623A TW 92137623 A TW92137623 A TW 92137623A TW 200514367 A TW200514367 A TW 200514367A
Authority
TW
Taiwan
Prior art keywords
output
signal
amplifier
infrared
demodulator
Prior art date
Application number
TW092137623A
Other languages
Chinese (zh)
Other versions
TWI240501B (en
Inventor
Hyung-Sik Yun
Seong-Kwon Lee
Original Assignee
Adtech 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
Priority claimed from KR1020030001130A external-priority patent/KR100575351B1/en
Priority claimed from KR1020030001127A external-priority patent/KR100576094B1/en
Application filed by Adtech Co Ltd filed Critical Adtech Co Ltd
Publication of TW200514367A publication Critical patent/TW200514367A/en
Application granted granted Critical
Publication of TWI240501B publication Critical patent/TWI240501B/en

Links

Landscapes

  • Optical Communication System (AREA)
  • Selective Calling Equipment (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

An infrared-ray receiver includes an infrared-ray receiving portion including a photodiode and converting an optical signal to an electric signal, a first amplifier amplifying the converted electric signal, a second amplifier receiving an output of the first amplifier and capable of controlling gain, a band pass filter filtering an electric signal of a frequency, a comparator comparing a preset reference DC voltage and an output of the band pass filter, a demodulator demodulating an output of the comparator, an output portion outputting an output signal of the demodulator, a gap time detection portion receiving one of the output of the demodulator and the output of the comparator and detecting a gap time of a signal; and a gain control portion designed to detect the length of a signal detected by the gap time detection portion and control gain of the automatic gain control amplifier according to whether a sustaining time of a gap time included in the detected signal exceeds a preset reference time value.
TW92137623A 2003-01-08 2003-12-31 Infrared-ray receiver TWI240501B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030001130A KR100575351B1 (en) 2003-01-08 2003-01-08 Infrared receiver with noise canceling function
KR1020030001127A KR100576094B1 (en) 2003-01-08 2003-01-08 Infrared receiver

Publications (2)

Publication Number Publication Date
TW200514367A true TW200514367A (en) 2005-04-16
TWI240501B TWI240501B (en) 2005-09-21

Family

ID=34315795

Family Applications (1)

Application Number Title Priority Date Filing Date
TW92137623A TWI240501B (en) 2003-01-08 2003-12-31 Infrared-ray receiver

Country Status (2)

Country Link
CN (1) CN1316766C (en)
TW (1) TWI240501B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100752523B1 (en) * 2005-12-15 2007-08-29 주식회사 에이디텍 Infrared receiver
CN101753102A (en) 2008-12-04 2010-06-23 博通集成电路（上海）有限公司 Device and method for signal demodulation
KR101044056B1 (en) * 2009-04-10 2011-06-27 주식회사 에이디텍 Infrared receiver with mode control gain
CN102546002B (en) * 2010-12-14 2014-09-24 无锡华润矽科微电子有限公司 Infrared receiving circuit
CN104530781A (en) * 2014-12-24 2015-04-22 常熟市亨达电子器材厂 Mining infrared receiver
CN105869382A (en) * 2015-02-10 2016-08-17 东莞德可森电子科技有限公司 Infrared remote control receiver
CN106941358B (en) * 2017-01-23 2019-05-14 厦门思力科电子科技有限公司 A kind of infrared radiation receiving circuit with fast charge mode
KR102030451B1 (en) * 2017-10-26 2019-10-10 현대오트론 주식회사 Ultrasonic sensor and control method thereof
CN112671422B (en) * 2020-12-24 2022-08-12 广州市慧芯电子科技有限公司 An infrared receiver chip with reusable test port

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2151487A1 (en) * 1993-10-28 1995-05-04 Joshua Zhu Remote control system, lighting system and filter
US5548833A (en) * 1994-06-03 1996-08-20 Transwitch Corporation Data independent automatic gain control circuit for telecommunication applications
US5781588A (en) * 1994-11-10 1998-07-14 Matsushita Electric Industrial Co., Ltd. FSK signal receiver
KR100322520B1 (en) * 1999-10-21 2002-03-18 권영정 Infrared receiver

Also Published As

Publication number Publication date
CN1316766C (en) 2007-05-16
CN1518246A (en) 2004-08-04
TWI240501B (en) 2005-09-21

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Legal Events

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MK4A Expiration of patent term of an invention patent