DE60022755T2 - Selektive verstärkungseinstellung zur erleichterung der trägerrückgewinnung in einem hochauflösenden fernsehempfänger - Google Patents
Selektive verstärkungseinstellung zur erleichterung der trägerrückgewinnung in einem hochauflösenden fernsehempfänger Download PDFInfo
- Publication number
- DE60022755T2 DE60022755T2 DE60022755T DE60022755T DE60022755T2 DE 60022755 T2 DE60022755 T2 DE 60022755T2 DE 60022755 T DE60022755 T DE 60022755T DE 60022755 T DE60022755 T DE 60022755T DE 60022755 T2 DE60022755 T2 DE 60022755T2
- Authority
- DE
- Germany
- Prior art keywords
- value
- signal
- gain
- television signal
- carrier
- 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 - Lifetime
Links
- 238000011084 recovery Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Circuits Of Receivers In General (AREA)
- Television Receiver Circuits (AREA)
- Television Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14441399P | 1999-07-16 | 1999-07-16 | |
| US144413P | 1999-07-16 | ||
| PCT/US2000/019134 WO2001006774A1 (en) | 1999-07-16 | 2000-07-13 | Selective gain adjustement to aid carrier acquisition in a high definition television receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60022755D1 DE60022755D1 (de) | 2005-10-27 |
| DE60022755T2 true DE60022755T2 (de) | 2006-05-18 |
Family
ID=22508476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60022755T Expired - Lifetime DE60022755T2 (de) | 1999-07-16 | 2000-07-13 | Selektive verstärkungseinstellung zur erleichterung der trägerrückgewinnung in einem hochauflösenden fernsehempfänger |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1197077B8 (enExample) |
| JP (1) | JP4980528B2 (enExample) |
| KR (1) | KR100720983B1 (enExample) |
| CN (1) | CN1157943C (enExample) |
| AU (1) | AU5933000A (enExample) |
| DE (1) | DE60022755T2 (enExample) |
| MX (1) | MXPA02000555A (enExample) |
| MY (1) | MY128892A (enExample) |
| TW (1) | TW496084B (enExample) |
| WO (1) | WO2001006774A1 (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100806536B1 (ko) * | 2002-01-11 | 2008-02-25 | 에이저 시스템즈 (아일랜드) 리서치 리미티드 | 데이터 수신기들 및 전송기들에서의 타이밍 제어 |
| KR100486269B1 (ko) * | 2002-10-07 | 2005-04-29 | 삼성전자주식회사 | 고 선명 텔레비전의 반송파 복구 장치 및 방법. |
| BR0316557A (pt) * | 2002-11-26 | 2005-10-04 | Thomson Licensing Sa | Detector de bloqueio de laço de monitoração de portadora |
| CN1317875C (zh) * | 2003-09-26 | 2007-05-23 | 南京Lg新港显示有限公司 | 载波复原装置 |
| US7061276B2 (en) * | 2004-04-02 | 2006-06-13 | Teradyne, Inc. | Digital phase detector |
| FR2877181B1 (fr) * | 2004-10-12 | 2014-05-30 | Samsung Electronics Co Ltd | Recepteur de television numerique, procede de generation de signaux de synchronisation et detecteur de signal de synchronisation dans ce recepteur |
| TWI398166B (zh) * | 2009-04-07 | 2013-06-01 | Himax Media Solutions Inc | 數位接收器及其相關方法 |
| CN102724514B (zh) * | 2012-05-16 | 2015-04-08 | 浙江大华技术股份有限公司 | 一种模拟视频信号传输损耗补偿方法、装置及接收设备 |
| CN110716182A (zh) * | 2018-07-11 | 2020-01-21 | 同方威视技术股份有限公司 | 基于数字控制的智能自动频率控制设备 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546138A (en) * | 1993-12-29 | 1996-08-13 | Zenith Electronics Corporation | AGC system with overriding, maximum gain during an initial interval to enhance signal acquisition |
| US5410368A (en) * | 1993-12-29 | 1995-04-25 | Zenith Electronics Corp. | Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval |
| US5627604A (en) * | 1994-04-04 | 1997-05-06 | Zenith Electronics Corporation | Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot |
-
2000
- 2000-07-13 DE DE60022755T patent/DE60022755T2/de not_active Expired - Lifetime
- 2000-07-13 WO PCT/US2000/019134 patent/WO2001006774A1/en not_active Ceased
- 2000-07-13 AU AU59330/00A patent/AU5933000A/en not_active Abandoned
- 2000-07-13 EP EP00945375A patent/EP1197077B8/en not_active Expired - Lifetime
- 2000-07-13 MX MXPA02000555A patent/MXPA02000555A/es active IP Right Grant
- 2000-07-13 KR KR1020027000373A patent/KR100720983B1/ko not_active Expired - Fee Related
- 2000-07-13 JP JP2001511093A patent/JP4980528B2/ja not_active Expired - Fee Related
- 2000-07-13 CN CNB008104735A patent/CN1157943C/zh not_active Expired - Fee Related
- 2000-07-14 TW TW089114117A patent/TW496084B/zh not_active IP Right Cessation
- 2000-07-14 MY MYPI20003243A patent/MY128892A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU5933000A (en) | 2001-02-05 |
| DE60022755D1 (de) | 2005-10-27 |
| CN1157943C (zh) | 2004-07-14 |
| MY128892A (en) | 2007-02-28 |
| EP1197077B8 (en) | 2005-11-30 |
| MXPA02000555A (es) | 2002-07-02 |
| JP4980528B2 (ja) | 2012-07-18 |
| EP1197077A1 (en) | 2002-04-17 |
| WO2001006774A1 (en) | 2001-01-25 |
| JP2003505948A (ja) | 2003-02-12 |
| KR20020024304A (ko) | 2002-03-29 |
| CN1361981A (zh) | 2002-07-31 |
| EP1197077B1 (en) | 2005-09-21 |
| TW496084B (en) | 2002-07-21 |
| KR100720983B1 (ko) | 2007-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |