CN100593343C - 过采样a/d转换电路 - Google Patents
过采样a/d转换电路 Download PDFInfo
- Publication number
- CN100593343C CN100593343C CN200610051394A CN200610051394A CN100593343C CN 100593343 C CN100593343 C CN 100593343C CN 200610051394 A CN200610051394 A CN 200610051394A CN 200610051394 A CN200610051394 A CN 200610051394A CN 100593343 C CN100593343 C CN 100593343C
- Authority
- CN
- China
- Prior art keywords
- sampling
- frequency
- over
- signal
- circuit
- 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
- 238000005070 sampling Methods 0.000 title claims abstract description 84
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 description 13
- 238000000926 separation method Methods 0.000 description 11
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 10
- 230000008859 change Effects 0.000 description 10
- 239000002131 composite material Substances 0.000 description 10
- 238000004088 simulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 201000009487 Amblyopia Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/642—Multi-standard receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
- H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Systems (AREA)
- Analogue/Digital Conversion (AREA)
- Picture Signal Circuits (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005000041A JP2006191216A (ja) | 2005-01-04 | 2005-01-04 | オーバーサンプリングa/d変換回路 |
JP2005000041 | 2005-01-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1801951A CN1801951A (zh) | 2006-07-12 |
CN100593343C true CN100593343C (zh) | 2010-03-03 |
Family
ID=36639938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200610051394A Expired - Fee Related CN100593343C (zh) | 2005-01-04 | 2006-01-04 | 过采样a/d转换电路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7599006B2 (zh) |
JP (1) | JP2006191216A (zh) |
KR (1) | KR100786043B1 (zh) |
CN (1) | CN100593343C (zh) |
TW (1) | TW200637163A (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4842217B2 (ja) * | 2007-06-26 | 2011-12-21 | Kddi株式会社 | オーバー/アンダーサンプリングにおけるサンプリング周波数探索方法及びプログラム |
JP2009071590A (ja) * | 2007-09-13 | 2009-04-02 | Denso Corp | 映像信号伝送装置、映像信号伝送システム |
TWI392376B (zh) * | 2008-09-03 | 2013-04-01 | Novatek Microelectronics Corp | 視訊裝置的狀態偵測器及其狀態偵測方法 |
JP5221446B2 (ja) * | 2009-05-19 | 2013-06-26 | 株式会社東芝 | 干渉除去装置および通信装置 |
GB2476041B (en) * | 2009-12-08 | 2017-03-01 | Skype | Encoding and decoding speech signals |
JP4733223B1 (ja) * | 2010-09-22 | 2011-07-27 | 一般社団法人Socコンソーシアム | 画像圧縮方法 |
JP5112528B2 (ja) * | 2011-03-01 | 2013-01-09 | 株式会社東芝 | 映像表示装置及び映像処理方法 |
GB201115119D0 (en) * | 2011-09-01 | 2011-10-19 | Multi Mode Multi Media Solutions Nv | Generation of digital clock for system having RF circuitry |
CN104301653A (zh) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | 一种实现复合视频信号多采样率的方法 |
JP6356967B2 (ja) * | 2014-01-07 | 2018-07-11 | ローム株式会社 | Ad変換回路 |
KR102238151B1 (ko) | 2015-03-25 | 2021-04-08 | 한화테크윈 주식회사 | 영상 신호 변환 장치 및 방법 |
US11593918B1 (en) * | 2017-05-16 | 2023-02-28 | Apple Inc. | Gradient-based noise reduction |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR900003778B1 (ko) * | 1984-09-29 | 1990-05-31 | 니뽕 빅터 가부시끼 가이샤 | 비디오 신호 디지탈 처리 회로 |
JPS62287716A (ja) | 1986-06-06 | 1987-12-14 | Nec Corp | アナログ・デジタル変換器 |
JPH04154319A (ja) * | 1990-10-18 | 1992-05-27 | Nec Corp | 符号・復号器 |
JPH04235407A (ja) * | 1991-01-10 | 1992-08-24 | Matsushita Electric Ind Co Ltd | アナログ/ディジタル変換方式 |
US5157395A (en) * | 1991-03-04 | 1992-10-20 | Crystal Semiconductor Corporation | Variable decimation architecture for a delta-sigma analog-to-digital converter |
JPH06177706A (ja) * | 1992-12-08 | 1994-06-24 | Sony Corp | 信号処理装置 |
KR100305569B1 (ko) | 1997-06-17 | 2001-11-22 | 이형도 | 디지털 위성방송 수신장치 및 방법 |
US6369857B1 (en) * | 1999-05-13 | 2002-04-09 | Sarnoff Corporation | Receiver for analog and digital television signals |
US8446530B2 (en) * | 2001-09-28 | 2013-05-21 | Entropic Communications, Inc. | Dynamic sampling |
JP3922252B2 (ja) * | 2003-03-04 | 2007-05-30 | ソニー株式会社 | 映像信号処理回路、映像信号処理方法 |
-
2005
- 2005-01-04 JP JP2005000041A patent/JP2006191216A/ja active Pending
- 2005-12-05 US US11/293,209 patent/US7599006B2/en not_active Expired - Fee Related
- 2005-12-15 TW TW094144453A patent/TW200637163A/zh unknown
-
2006
- 2006-01-04 CN CN200610051394A patent/CN100593343C/zh not_active Expired - Fee Related
- 2006-01-04 KR KR1020060001123A patent/KR100786043B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100786043B1 (ko) | 2007-12-17 |
TW200637163A (en) | 2006-10-16 |
KR20060080133A (ko) | 2006-07-07 |
US7599006B2 (en) | 2009-10-06 |
JP2006191216A (ja) | 2006-07-20 |
CN1801951A (zh) | 2006-07-12 |
US20060146192A1 (en) | 2006-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100593343C (zh) | 过采样a/d转换电路 | |
JP2715172B2 (ja) | 信号濾波装置 | |
US4232330A (en) | Method and system for separating the chrominance and luminance signals in color television signals having quadrature-modulated chrominance subcarriers | |
JPS63242091A (ja) | 信号分離回路 | |
KR950000322B1 (ko) | 적응 필터링 시스템 | |
US4333104A (en) | Color demodulating apparatus with cross-color cancellation | |
KR0170630B1 (ko) | 휘도/색신호 전처리장치 | |
EP0464879B1 (en) | Apparatus for separating luminance and chrominance signals and the method thereof | |
CN101223697B (zh) | 利用折叠补偿采样消除寄生信号的信号处理器及其方法 | |
JPH09238363A (ja) | デジタルカラーエンコーダ | |
JP3922252B2 (ja) | 映像信号処理回路、映像信号処理方法 | |
JP4461521B2 (ja) | サンプリングクロック生成回路 | |
US5510847A (en) | TV signal decoding apparatus using luminance and color signal selection | |
EP0161923A2 (en) | A separating filter of luminance and chrominance signals of pal system | |
EP1588569A1 (en) | Method and device for separating a chrominance signal from a composite video baseband signal | |
US5303038A (en) | Circuit arrangement for A/D conversion of the color information components of two picture signals | |
US5132785A (en) | Data selector for demodulating chrominance signal | |
JPH0787590B2 (ja) | 色信号処理回路 | |
JPH0481191A (ja) | 輝度信号色信号分離フィルタ | |
JP2964595B2 (ja) | 映像信号処理回路 | |
KR920010039B1 (ko) | 칼라신호 복조회로 | |
JPH04227189A (ja) | 色信号復調用データセレクタ | |
JP3003178B2 (ja) | 輝度信号色信号分離フィルタ | |
JPH0646813B2 (ja) | Ntsc適応型輪郭抽出フイルタ | |
JPH0414392A (ja) | 映像信号処理装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1090224 Country of ref document: HK |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: RENESAS ELECTRONICS CO., LTD. Free format text: FORMER NAME: NEC CORP. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Kanagawa, Japan Patentee after: Renesas Electronics Corporation Address before: Kanagawa, Japan Patentee before: NEC Corp. |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1090224 Country of ref document: HK |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20140104 |