FI114522B - Förfarande för behandling av en digital datasignal i serieform - Google Patents
Förfarande för behandling av en digital datasignal i serieform Download PDFInfo
- Publication number
- FI114522B FI114522B FI963621A FI963621A FI114522B FI 114522 B FI114522 B FI 114522B FI 963621 A FI963621 A FI 963621A FI 963621 A FI963621 A FI 963621A FI 114522 B FI114522 B FI 114522B
- Authority
- FI
- Finland
- Prior art keywords
- signal
- data signal
- detected
- signal element
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/007—Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
-
- 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
-
- 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
- H04L25/068—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection by sampling faster than the nominal bit rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Television Systems (AREA)
- Communication Control (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Claims (3)
1. Förfarande för bearbetning av en seriell, digital datasignal, vilken ingär i en TV-signal och som avskiljes frän denna, vilken vidare är infogad i en oföränderlig dataram och vilken uppvisar signalelement i olika frekvenslägen, vid vilket datasig- 5 nalen detekteras och de uppkomna detekteringsvärdena korreleras med dataramen för den detekterade datasignalen, kännetecknat av att för det fall att varje signalelement bara uppbär en enda informationsenhet, detekteras signalelementet med en relativt sitt frekvensläge förhöjd detekteringsfrekvens, varvid detekteringsfrekven-sen tili frekvens- och fastläge motsvarar en gemensam multipel av samtliga frek-10 venslägen för signalelementen, samt av att följden av de vid detekteringen av signalelementet uppkommande detekteringsvärdena undergär ett majoritetstest i enkel eller viktad form.
2. Förfarande enligt patentkrav 1, kännetecknat av att signalelementet är bifas-kodat, att före majoritetstestet i enkel eller viktad form inverteras detekteringsvär- 15 dena för signalelementets inverterade avsnitt samt av att de oinverterade och de inverterade detekteringsvärdena värderas som giltiga när antalet detekteringsvärden av den ena polariteten ligger över ett förutbestämt tröskelvärde.
3. Förfarande enligt patentkrav 1 eller 2, kännetecknat av att som digital datasignal användes en signaleringssignal för det aktuella bildformatet för en bredbilds- 20 mottagare samt av att i händelse av att datasignalen äterges av en hemvideospelare : användes enbart det testade signalelementet för styrning av bredbildsmottagarens • bildformat. I I • tl • ( 1 · »
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4408963A DE4408963A1 (de) | 1994-03-16 | 1994-03-16 | Verfahren zum Verarbeiten eines seriellen, digitalen Datensignals |
| DE4408963 | 1994-03-16 | ||
| PCT/EP1995/000969 WO1995025401A1 (de) | 1994-03-16 | 1995-03-15 | Verfahren zum verarbeiten eines seriellen, digitalen datensignals |
| EP9500969 | 1995-03-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI963621A0 FI963621A0 (sv) | 1996-09-13 |
| FI963621A FI963621A (sv) | 1996-09-13 |
| FI114522B true FI114522B (sv) | 2004-10-29 |
Family
ID=6512972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI963621A FI114522B (sv) | 1994-03-16 | 1996-09-13 | Förfarande för behandling av en digital datasignal i serieform |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0750820B1 (sv) |
| JP (1) | JP3446010B2 (sv) |
| KR (1) | KR100361509B1 (sv) |
| AT (1) | ATE170691T1 (sv) |
| CZ (1) | CZ284936B6 (sv) |
| DE (2) | DE4408963A1 (sv) |
| DK (1) | DK0750820T3 (sv) |
| ES (1) | ES2121360T3 (sv) |
| FI (1) | FI114522B (sv) |
| HU (1) | HU216226B (sv) |
| NO (1) | NO309789B1 (sv) |
| PL (1) | PL175762B1 (sv) |
| WO (1) | WO1995025401A1 (sv) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19815701A1 (de) * | 1998-04-08 | 1999-10-14 | Bosch Gmbh Robert | Verfahren zum Demodulieren einer mit einer digitalen Symbolfolge modulierten Trägerwelle |
| US6735249B1 (en) | 1999-08-11 | 2004-05-11 | Nokia Corporation | Apparatus, and associated method, for forming a compressed motion vector field utilizing predictive motion coding |
| DE10007783A1 (de) * | 2000-02-21 | 2001-08-23 | Rohde & Schwarz | Verfahren und Anordnung zur Daten- und Taktrückgewinnung bei einem biphase-codierten Datensignal |
| US8433991B2 (en) * | 2010-06-16 | 2013-04-30 | Qualcomm Incorporated | Global Navigation Satellite System (GLONASS) data bit edge detection |
| US8780958B2 (en) | 2010-08-27 | 2014-07-15 | Qualcomm Incorporated | Hybrid bit extraction for global position receiver |
| US8619919B2 (en) | 2010-10-14 | 2013-12-31 | Qualcomm Incorporated | Selective coherent and non-coherent demodulation methods and apparatuses |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268366A (en) * | 1968-11-27 | 1972-03-29 | Standard Telephones Cables Ltd | Telecommunication switching centre |
| FR2377729A1 (fr) * | 1977-01-14 | 1978-08-11 | Thomson Csf | Dispositif de decodage de signaux numeriques, et systeme comportant un tel dispositif |
| EP0472756B1 (de) * | 1990-08-29 | 1995-08-16 | Deutsche ITT Industries GmbH | Signal-Abtrennvorrichtung |
| DE4112712A1 (de) * | 1991-04-18 | 1992-10-22 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen einer digitalen zusatzinformation in einer zeile eines fernsehsignals |
| US5373534A (en) * | 1992-01-14 | 1994-12-13 | Matsushita Electric Industrial Co., Ltd. | Serial data receiving apparatus |
| DE4307686A1 (de) * | 1993-03-11 | 1994-09-15 | Inst Rundfunktechnik Gmbh | Verfahren zum Verarbeiten eines seriellen, digitalen Datensignals |
-
1994
- 1994-03-16 DE DE4408963A patent/DE4408963A1/de not_active Withdrawn
-
1995
- 1995-03-15 PL PL95316041A patent/PL175762B1/pl not_active IP Right Cessation
- 1995-03-15 HU HU9602500A patent/HU216226B/hu not_active IP Right Cessation
- 1995-03-15 ES ES95913128T patent/ES2121360T3/es not_active Expired - Lifetime
- 1995-03-15 WO PCT/EP1995/000969 patent/WO1995025401A1/de active IP Right Grant
- 1995-03-15 CZ CZ962437A patent/CZ284936B6/cs not_active IP Right Cessation
- 1995-03-15 JP JP52384595A patent/JP3446010B2/ja not_active Expired - Fee Related
- 1995-03-15 KR KR1019960705070A patent/KR100361509B1/ko not_active IP Right Cessation
- 1995-03-15 EP EP95913128A patent/EP0750820B1/de not_active Expired - Lifetime
- 1995-03-15 DE DE59503433T patent/DE59503433D1/de not_active Expired - Lifetime
- 1995-03-15 AT AT95913128T patent/ATE170691T1/de active
- 1995-03-15 DK DK95913128T patent/DK0750820T3/da active
-
1996
- 1996-09-13 NO NO963855A patent/NO309789B1/no not_active IP Right Cessation
- 1996-09-13 FI FI963621A patent/FI114522B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0750820A1 (de) | 1997-01-02 |
| NO309789B1 (no) | 2001-03-26 |
| HUT75486A (en) | 1997-05-28 |
| JPH09505192A (ja) | 1997-05-20 |
| HU9602500D0 (en) | 1996-11-28 |
| CZ284936B6 (cs) | 1999-04-14 |
| DE4408963A1 (de) | 1995-09-21 |
| DE59503433D1 (de) | 1998-10-08 |
| JP3446010B2 (ja) | 2003-09-16 |
| NO963855L (no) | 1996-09-13 |
| CZ243796A3 (en) | 1996-12-11 |
| HU216226B (hu) | 1999-05-28 |
| EP0750820B1 (de) | 1998-09-02 |
| ATE170691T1 (de) | 1998-09-15 |
| DK0750820T3 (da) | 1999-06-07 |
| KR100361509B1 (ko) | 2003-02-14 |
| FI963621A0 (sv) | 1996-09-13 |
| WO1995025401A1 (de) | 1995-09-21 |
| PL316041A1 (en) | 1996-12-23 |
| FI963621A (sv) | 1996-09-13 |
| KR970701960A (ko) | 1997-04-12 |
| PL175762B1 (pl) | 1999-02-26 |
| ES2121360T3 (es) | 1998-11-16 |
| NO963855D0 (no) | 1996-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Ref document number: 114522 Country of ref document: FI |
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| MM | Patent lapsed |