FR2776151B1 - Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm - Google Patents
Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdmInfo
- Publication number
- FR2776151B1 FR2776151B1 FR9802894A FR9802894A FR2776151B1 FR 2776151 B1 FR2776151 B1 FR 2776151B1 FR 9802894 A FR9802894 A FR 9802894A FR 9802894 A FR9802894 A FR 9802894A FR 2776151 B1 FR2776151 B1 FR 2776151B1
- Authority
- FR
- France
- Prior art keywords
- decoding
- transmission channel
- ofdm modulation
- terrestrial broadcasting
- digital terrestrial
- 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
- 230000005540 biological transmission Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
-
- 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
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Error Detection And Correction (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802894A FR2776151B1 (fr) | 1998-03-10 | 1998-03-10 | Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm |
US09/264,916 US6426981B1 (en) | 1998-03-10 | 1999-03-09 | Process and device for decoding a radio frequency transmission channel, especially for a terrestrial digital broadcast using OFDM modulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802894A FR2776151B1 (fr) | 1998-03-10 | 1998-03-10 | Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2776151A1 FR2776151A1 (fr) | 1999-09-17 |
FR2776151B1 true FR2776151B1 (fr) | 2000-04-14 |
Family
ID=9523848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9802894A Expired - Fee Related FR2776151B1 (fr) | 1998-03-10 | 1998-03-10 | Procede et dispositif de decodage d'un canal de transmission radiofrequence, notamment pour une diffusion numerique terrestre utilisant une modulation ofdm |
Country Status (2)
Country | Link |
---|---|
US (1) | US6426981B1 (fr) |
FR (1) | FR2776151B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002023844A2 (fr) | 2000-09-12 | 2002-03-21 | Siemens Aktiengesellschaft | Procede et recepteur a multiplexage frequentiel optique pour reduire l'influence de perturbations harmoniques sur des systemes de transmission a multiplexage frequentiel optique |
US20030084283A1 (en) * | 2001-09-04 | 2003-05-01 | Pixton Jeffrey Seth | Digital broadcast system |
US20040223449A1 (en) * | 2003-05-08 | 2004-11-11 | Yih-Ming Tsuie | Mode detection for OFDM signals |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5321705A (en) * | 1990-11-21 | 1994-06-14 | Motorola, Inc. | Error detection system |
US5278871A (en) * | 1992-03-19 | 1994-01-11 | Motorola, Inc. | Method and apparatus for estimating signal weighting parameters in a receiver |
US5408503A (en) * | 1992-07-03 | 1995-04-18 | U.S. Philips Corporation | Adaptive viterbi detector |
EP0620668B1 (fr) * | 1993-04-15 | 2000-06-07 | Samsung Electronics Co., Ltd. | Elimination d'erreurs de phase à 90 et 180 dans des récepteurs MAQ |
KR0157546B1 (ko) * | 1995-01-19 | 1998-11-16 | 김광호 | 디지탈 전송신호의 복원 장치 |
US5574751A (en) * | 1995-04-24 | 1996-11-12 | Motorola, Inc. | Method for a soft-decision modulation system |
GB9521739D0 (en) * | 1995-10-24 | 1996-01-03 | Nat Transcommunications Ltd | Decoding carriers encoded using orthogonal frequency division multiplexing |
GB9522241D0 (en) * | 1995-10-31 | 1996-01-03 | Nat Transcommunications Ltd | Method and apparatus for differentially decoding signals |
US6359897B1 (en) * | 1997-11-03 | 2002-03-19 | Harris Corporation | Control system for controlling the processing data of a first in first out memory and method therefor |
-
1998
- 1998-03-10 FR FR9802894A patent/FR2776151B1/fr not_active Expired - Fee Related
-
1999
- 1999-03-09 US US09/264,916 patent/US6426981B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2776151A1 (fr) | 1999-09-17 |
US6426981B1 (en) | 2002-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20071130 |