CN1324813C - 射频接收机 - Google Patents
射频接收机 Download PDFInfo
- 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
- mentioned
- frequency
- 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
Links
Images
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)
Abstract
Description
Claims (2)
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 (zh) |
JP (1) | JPWO2003092177A1 (zh) |
CN (1) | CN1324813C (zh) |
TW (1) | TW200400701A (zh) |
WO (1) | WO2003092177A1 (zh) |
Cited By (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8050646B2 (en) * | 2006-04-24 | 2011-11-01 | Panasonic Corporation | Noise suppressing device |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57198139U (zh) * | 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)
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 |
-
2003
- 2003-04-23 TW TW092109483A patent/TW200400701A/zh not_active IP Right Cessation
- 2003-04-24 WO PCT/JP2003/005262 patent/WO2003092177A1/ja active Application Filing
- 2003-04-24 CN CNB038092921A patent/CN1324813C/zh not_active Expired - Fee Related
- 2003-04-24 JP JP2004501954A patent/JPWO2003092177A1/ja active Pending
-
2004
- 2004-10-21 US US10/968,956 patent/US20050058296A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57198139U (zh) * | 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)
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 |
---|---|
TWI301361B (zh) | 2008-09-21 |
CN1650530A (zh) | 2005-08-03 |
JPWO2003092177A1 (ja) | 2005-09-02 |
TW200400701A (en) | 2004-01-01 |
WO2003092177A1 (fr) | 2003-11-06 |
US20050058296A1 (en) | 2005-03-17 |
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Legal Events
Date | Code | Title | Description |
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PB01 | Publication | ||
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REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1076336 Country of ref document: HK |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NIIGATA SEIMITSU CO., LTD.; RICOH CO., LTD. Free format text: FORMER OWNER: NIIGATA SEIMITSU CO., LTD. Effective date: 20070928 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20070928 Address after: Japan's Niigata Prefecture Co-patentee after: Ricoh Co., Ltd. Patentee after: Niigato Precision Co., Ltd. Address before: Japan's Niigata Prefecture Patentee before: Niigato Precision Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20100424 |
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