CN1324813C - 射频接收机 - Google Patents

射频接收机 Download PDF

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Publication number
CN1324813C
CN1324813C CNB038092921A CN03809292A CN1324813C CN 1324813 C CN1324813 C CN 1324813C CN B038092921 A CNB038092921 A CN B038092921A CN 03809292 A CN03809292 A CN 03809292A CN 1324813 C CN1324813 C CN 1324813C
Authority
CN
China
Prior art keywords
circuit
signal
clock signal
frequency
noise
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CNB038092921A
Other languages
English (en)
Chinese (zh)
Other versions
CN1650530A (zh
Inventor
乌谷宗宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIIGATO PRECISION CO Ltd
Ricoh Co Ltd
Original Assignee
Nigata Semitsu 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 Nigata Semitsu Co Ltd filed Critical Nigata Semitsu Co Ltd
Publication of CN1650530A publication Critical patent/CN1650530A/zh
Application granted granted Critical
Publication of CN1324813C publication Critical patent/CN1324813C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)
CNB038092921A 2002-04-26 2003-04-24 射频接收机 Expired - Fee Related CN1324813C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002126989 2002-04-26
JP126989/2002 2002-04-26

Publications (2)

Publication Number Publication Date
CN1650530A CN1650530A (zh) 2005-08-03
CN1324813C true CN1324813C (zh) 2007-07-04

Family

ID=29267627

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038092921A Expired - Fee Related CN1324813C (zh) 2002-04-26 2003-04-24 射频接收机

Country Status (5)

Country Link
US (1) US20050058296A1 (enExample)
JP (1) JPWO2003092177A1 (enExample)
CN (1) CN1324813C (enExample)
TW (1) TW200400701A (enExample)
WO (1) WO2003092177A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102598717A (zh) * 2009-09-10 2012-07-18 杜比国际公司 使用参数化立体声的fm立体声无线电接收机的音频信号的改进

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101411074B (zh) * 2006-04-24 2012-05-23 松下电器产业株式会社 噪声抑制装置和噪声抑制方法
JP4612700B2 (ja) * 2008-03-13 2011-01-12 株式会社東芝 半導体集積回路装置
UA107771C2 (en) 2011-09-29 2015-02-10 Dolby Int Ab Prediction-based fm stereo radio noise reduction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198139U (enExample) * 1981-06-10 1982-12-16
JPS6314980A (ja) * 1986-07-07 1988-01-22 株式会社　鷺宮製作所 冷蔵庫ドアの開閉機構
JPS63266930A (ja) * 1988-03-11 1988-11-04 Pioneer Electronic Corp Ｆｍ受信機におけるパルス性雑音除去装置
CN1256811A (zh) * 1997-03-17 2000-06-14 艾利森公司 补偿调频接收机中喀音噪声的方法和设备
EP1120919A2 (en) * 1999-12-22 2001-08-01 Mitsubishi Denki Kabushiki Kaisha Multipath noise reducer, audio output circuit, and FM receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714595A (en) * 1971-03-25 1973-01-30 Warwick Electronics Inc Demodulator using a phase locked loop
JPS57121345A (en) * 1981-01-20 1982-07-28 Sanyo Electric Co Ltd Pulse noise eliminating circuit
JP2546331B2 (ja) * 1988-04-26 1996-10-23 ソニー株式会社 Ｆｍ・ａｍ受信機
JP3188035B2 (ja) * 1993-04-28 2001-07-16 三洋電機株式会社 ノイズ除去回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198139U (enExample) * 1981-06-10 1982-12-16
JPS6314980A (ja) * 1986-07-07 1988-01-22 株式会社　鷺宮製作所 冷蔵庫ドアの開閉機構
JPS63266930A (ja) * 1988-03-11 1988-11-04 Pioneer Electronic Corp Ｆｍ受信機におけるパルス性雑音除去装置
CN1256811A (zh) * 1997-03-17 2000-06-14 艾利森公司 补偿调频接收机中喀音噪声的方法和设备
EP1120919A2 (en) * 1999-12-22 2001-08-01 Mitsubishi Denki Kabushiki Kaisha Multipath noise reducer, audio output circuit, and FM receiver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102598717A (zh) * 2009-09-10 2012-07-18 杜比国际公司 使用参数化立体声的fm立体声无线电接收机的音频信号的改进
US8929558B2 (en) 2009-09-10 2015-01-06 Dolby International Ab Audio signal of an FM stereo radio receiver by using parametric stereo
US9877132B2 (en) 2009-09-10 2018-01-23 Dolby International Ab Audio signal of an FM stereo radio receiver by using parametric stereo

Also Published As

Publication number Publication date
WO2003092177A1 (en) 2003-11-06
TW200400701A (en) 2004-01-01
TWI301361B (enExample) 2008-09-21
JPWO2003092177A1 (ja) 2005-09-02
US20050058296A1 (en) 2005-03-17
CN1650530A (zh) 2005-08-03

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