DE3068025D1 - Method and apparatus for digital data extraction in presence of noise and distorsion - Google Patents
Method and apparatus for digital data extraction in presence of noise and distorsionInfo
- Publication number
- DE3068025D1 DE3068025D1 DE8080401049T DE3068025T DE3068025D1 DE 3068025 D1 DE3068025 D1 DE 3068025D1 DE 8080401049 T DE8080401049 T DE 8080401049T DE 3068025 T DE3068025 T DE 3068025T DE 3068025 D1 DE3068025 D1 DE 3068025D1
- Authority
- DE
- Germany
- Prior art keywords
- distorsion
- noise
- digital data
- data extraction
- extraction
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
- H04L25/065—Binary decisions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
- H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
- H04N7/0355—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal for discrimination of the binary level of the digital data, e.g. amplitude slicers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Synchronizing For Television (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7918468A FR2462073A1 (fr) | 1979-07-17 | 1979-07-17 | Procede et dispositif pour l'extraction de donnees numeriques en presence de bruit et de distorsions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3068025D1 true DE3068025D1 (en) | 1984-07-05 |
Family
ID=9227971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080401049T Expired DE3068025D1 (en) | 1979-07-17 | 1980-07-11 | Method and apparatus for digital data extraction in presence of noise and distorsion |
Country Status (4)
Country | Link |
---|---|
US (1) | US4318128A (de) |
EP (1) | EP0022723B1 (de) |
DE (1) | DE3068025D1 (de) |
FR (1) | FR2462073A1 (de) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57104390A (en) * | 1980-12-22 | 1982-06-29 | Victor Co Of Japan Ltd | Data extracting circuit |
US4965825A (en) | 1981-11-03 | 1990-10-23 | The Personalized Mass Media Corporation | Signal processing apparatus and methods |
US7831204B1 (en) | 1981-11-03 | 2010-11-09 | Personalized Media Communications, Llc | Signal processing apparatus and methods |
USRE47642E1 (en) | 1981-11-03 | 2019-10-08 | Personalized Media Communications LLC | Signal processing apparatus and methods |
US4509180A (en) * | 1982-03-15 | 1985-04-02 | Lgz Landis & Gyr Zug Ag | Method and an apparatus for correcting distortion of binary received signals |
JPS598485A (ja) * | 1982-07-05 | 1984-01-17 | Matsushita Electric Ind Co Ltd | 文字多重放送受信機 |
US4460808A (en) * | 1982-08-23 | 1984-07-17 | At&T Bell Laboratories | Adaptive signal receiving method and apparatus |
EP0144457B1 (de) * | 1983-12-07 | 1987-11-11 | Deutsche ITT Industries GmbH | Daten-Slicer-Schaltung zur Abtrennung und Wiedergewinnung von digitalen Teletextsignalen |
FR2556903B1 (fr) * | 1983-12-15 | 1986-04-11 | Telediffusion Fse | Procede et circuits de regeneration d'instants significatifs d'un signal periodique |
US4673979A (en) * | 1984-06-15 | 1987-06-16 | Matsushita Electric Industrial Co., Ltd. | Digital data reproducing system |
US4893316A (en) * | 1985-04-04 | 1990-01-09 | Motorola, Inc. | Digital radio frequency receiver |
JPS62217746A (ja) * | 1986-03-19 | 1987-09-25 | Iwatsu Electric Co Ltd | スタ−トビツト検出回路 |
US4736391A (en) * | 1986-07-22 | 1988-04-05 | General Electric Company | Threshold control with data receiver |
US4821292A (en) * | 1987-06-03 | 1989-04-11 | General Electric Company | Adaptive limiter/detector which changes time constant upon detection of dotting pattern |
FR2652697A1 (fr) * | 1989-10-03 | 1991-04-05 | Sgs Thomson Microelectronics | Extracteur de donnees numeriques dans un signal video. |
CA2029749C (en) * | 1989-11-16 | 1994-09-06 | Keizo Sakamoto | Modem signal detecting system for adaptive differential pcm codec |
JPH03283742A (ja) * | 1990-03-30 | 1991-12-13 | Omron Corp | 波形整形方法および装置ならびに波形整形のためのしきい値の作成方法および装置 |
US5247458A (en) * | 1990-09-11 | 1993-09-21 | Audio Precision, Inc. | Method and apparatus for testing a digital system for the occurrence of errors |
GB9102936D0 (en) * | 1991-02-12 | 1991-03-27 | Shaye Communications Ltd | Digital communications systems |
JP3399945B2 (ja) * | 1992-03-11 | 2003-04-28 | トムソン コンシユーマ エレクトロニクス インコーポレイテツド | データ・スライサ |
US5371545A (en) * | 1992-03-11 | 1994-12-06 | Thomson Consumer Electronics, Inc. | Auxiliary video data slicer with adjustable window for detecting the run in clock |
ATE171031T1 (de) * | 1992-06-01 | 1998-09-15 | Thomson Multimedia Sa | Zusatzvideodatentrenner |
GB9212263D0 (en) * | 1992-06-10 | 1992-07-22 | Shaye Communications Ltd | System for data recovery |
JP2503837B2 (ja) * | 1992-07-16 | 1996-06-05 | 日本電気株式会社 | ディジタル光受信回路とディジタル光受信回路におけるプリアンプ回路 |
US5374960A (en) * | 1993-04-15 | 1994-12-20 | Thomson Consumer Electronics, Inc. | Auxiliary video information code correction in sync-suppression type scrambled video signals |
FR2720575B1 (fr) * | 1994-05-24 | 1996-08-09 | Dassault Automatismes Telecomm | Adaptateur post-démodulation. |
DE4438345C1 (de) * | 1994-10-27 | 1996-08-01 | Nokia Telecommunications Oy | System und Verfahren zur digitalen Datenkommunikation |
GB9508209D0 (en) * | 1995-04-22 | 1995-06-07 | Philips Electronics Uk Ltd | Data slicer |
US5629960A (en) * | 1995-05-22 | 1997-05-13 | Sierra Wireless, Inc. | Method for reducing distortion effects on DC off-set voltage and symbol clock tracking in a demodulator |
US5838735A (en) * | 1996-07-08 | 1998-11-17 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for compensating for a varying d.c. offset in a sampled signal |
FR2760926B1 (fr) * | 1997-03-13 | 1999-04-16 | Alsthom Cge Alcatel | Dispositif de supression des sauts parasites de composante continue pour recepteur radio de type frequence intermediaire zero et procede de suppression correspondant |
EP0895385A1 (de) * | 1997-07-29 | 1999-02-03 | Alcatel | Verminderung von Gleichstromverschiebungen für Burstbetriebempfang |
GB2330279B (en) | 1997-10-07 | 1999-09-22 | Ramar Technology Ltd | Low power density radio systems |
DE19820909A1 (de) * | 1998-05-09 | 1999-11-25 | Thomson Brandt Gmbh | Datenaufbereitungseinrichtung |
US6914522B2 (en) * | 2003-05-23 | 2005-07-05 | Lear Corporation | Clamping circuit for an RF receiver system |
US7796193B2 (en) * | 2006-06-29 | 2010-09-14 | Mediatek Inc. | Method of adaptive slicing signal |
JP4246222B2 (ja) * | 2006-07-18 | 2009-04-02 | シャープ株式会社 | キャリア検出回路、それを備えた赤外線信号処理回路、ならびにキャリア検出回路の制御方法 |
US20100091187A1 (en) * | 2008-10-15 | 2010-04-15 | Echostar Technologies L.L.C. | Method and audio/video device for processing caption information |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737790A (en) * | 1971-12-21 | 1973-06-05 | Us Navy | Noise-riding slicer |
GB1523307A (en) * | 1975-12-09 | 1978-08-31 | Aston Electronic Dev | Data slicing apparatus and method |
US4145743A (en) * | 1976-12-27 | 1979-03-20 | Rca Corporation | Voltage level generator using digital integration |
-
1979
- 1979-07-17 FR FR7918468A patent/FR2462073A1/fr active Granted
-
1980
- 1980-07-11 EP EP80401049A patent/EP0022723B1/de not_active Expired
- 1980-07-11 DE DE8080401049T patent/DE3068025D1/de not_active Expired
- 1980-07-15 US US06/169,213 patent/US4318128A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2462073A1 (fr) | 1981-02-06 |
FR2462073B1 (de) | 1984-07-13 |
US4318128A (en) | 1982-03-02 |
EP0022723B1 (de) | 1984-05-30 |
EP0022723A1 (de) | 1981-01-21 |
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