FR2877181B1 - Digital television receiver has phase compensator to offset phase of real and imaginary data based on phase offset signal and outputs phase adjusted data - Google Patents

Digital television receiver has phase compensator to offset phase of real and imaginary data based on phase offset signal and outputs phase adjusted data

Info

Publication number
FR2877181B1
FR2877181B1 FR0510328A FR0510328A FR2877181B1 FR 2877181 B1 FR2877181 B1 FR 2877181B1 FR 0510328 A FR0510328 A FR 0510328A FR 0510328 A FR0510328 A FR 0510328A FR 2877181 B1 FR2877181 B1 FR 2877181B1
Authority
FR
France
Prior art keywords
phase
offset
outputs
real
signal
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.)
Active
Application number
FR0510328A
Other languages
French (fr)
Other versions
FR2877181A1 (en
Inventor
Jonghwan Cheon
Minho Kim
Hyunbae Jeon
Sergey Zhidkov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020040081349A external-priority patent/KR100594296B1/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2877181A1 publication Critical patent/FR2877181A1/en
Application granted granted Critical
Publication of FR2877181B1 publication Critical patent/FR2877181B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • 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
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H04L2027/0042—Correction of carrier offset using an equaliser the equaliser providing the offset correction per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronizing For Television (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

A comparator compares the sum of power of the correlated real (I) and imaginary (Q) data against preset threshold and outputs a compare indication signal which is monitored by sync lock controller. A phase compensator offsets the phase of I and Q data based on phase offset signal from phase calculator and outputs phase adjusted I and Q data under the control of lock control signal. Independent claims are also included for the following: (1) sync signal generation method; and (2) sync signal detector.
FR0510328A 2004-10-12 2005-10-10 Digital television receiver has phase compensator to offset phase of real and imaginary data based on phase offset signal and outputs phase adjusted data Active FR2877181B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040081349A KR100594296B1 (en) 2004-10-12 2004-10-12 Synchronization signal detection apparatus and method in the digital television receiver
US11/184,330 US7480009B2 (en) 2004-10-12 2005-07-19 Synchronization signal detection in a digital television receiver

Publications (2)

Publication Number Publication Date
FR2877181A1 FR2877181A1 (en) 2006-04-28
FR2877181B1 true FR2877181B1 (en) 2014-05-30

Family

ID=36383551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0510328A Active FR2877181B1 (en) 2004-10-12 2005-10-10 Digital television receiver has phase compensator to offset phase of real and imaginary data based on phase offset signal and outputs phase adjusted data

Country Status (2)

Country Link
JP (1) JP4970765B2 (en)
FR (1) FR2877181B1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2843692B2 (en) * 1991-07-26 1999-01-06 日本電気ホームエレクトロニクス株式会社 Carrier detection method and carrier detection device
JP4149664B2 (en) * 1997-10-31 2008-09-10 トムソン ライセンシング High definition television residual sideband (VSB) receiver
CN1157943C (en) * 1999-07-16 2004-07-14 汤姆森许可公司 Selective gain adjustement to aid carrier acquisition in a high definition television receiver
US6707861B1 (en) * 1999-10-26 2004-03-16 Thomson Licensing S.A. Demodulator for an HDTV receiver
US6298100B1 (en) * 1999-10-26 2001-10-02 Thomson Licensing S.A. Phase error estimation method for a demodulator in an HDTV receiver
JP2001285144A (en) * 2000-03-31 2001-10-12 Hitachi Kokusai Electric Inc Automatic equalization circuit
WO2003043323A1 (en) * 2001-11-14 2003-05-22 Rosum Corporation Using digital television broadcast signals to provide gps aiding information
KR100486269B1 (en) * 2002-10-07 2005-04-29 삼성전자주식회사 Carrier Recovery device for High definition television and method there of
DE602005019039D1 (en) * 2004-05-12 2010-03-11 Thomson Licensing Sa CARRIER PHASE MEHRDEUTIGEITSKORREKTUR

Also Published As

Publication number Publication date
FR2877181A1 (en) 2006-04-28
JP4970765B2 (en) 2012-07-11
JP2006115510A (en) 2006-04-27

Similar Documents

Publication Publication Date Title
US6389088B1 (en) Synchronization and tracking in a digital communication system
US8982219B2 (en) Receiving device and camera system
HK1109517A1 (en) Methods and apparatus for synchronization detection and power control during soft handover
EP1358761A4 (en) Apparatus and method for transmitting mpeg-4 data synchronized with mpeg-2 data
WO2003091850A3 (en) Method and system for optimal video transcoding based on utility function descriptors
EP1995960A4 (en) Reproducer, portable telephone, and reproducing method
WO2005002193A3 (en) Video conferencing apparatus and method
TW200618526A (en) System and method for network interface power management
TW200642475A (en) ADC system, video decoder and related method for decoding composite video signal utilizing clock synchronized to subcarrier of composite video signal
TW200721681A (en) Compensation offset adjustment scheme for fast reference voltage transitioning
TW200718023A (en) Delayed locked loop circuit
WO2008126429A1 (en) Clock data regenerating circuit and its control method
WO2009060763A1 (en) Clock data restoration device
HK1082044A1 (en) Procedure for estimating a parameter of a local maxima or minima of a correlation function derived from a received signal
WO2011084227A3 (en) Control of four-leg transformerless uninterruptible power supply
US20150103931A1 (en) Semiconductor device and receiver
HK1138691A1 (en) Method and system for processing communication signals
TW200635382A (en) Digital video signal processing apparatus and method for compensating a chrominance signal
MX2009010604A (en) Digital broadcasting system and method of processing data.
WO2004045197A3 (en) A system and method for determining lip synchronization between audio and video in a digitized environment using buffer calculation
AU2317200A (en) Delayed video tracking
TW200614721A (en) Signal reception apparatus, systems, and methods
KR20130087678A (en) The apparatus and method for lip sync control between audio from the speaker and video from the tvset
EP1638243A3 (en) Processing device with clock recovery from different sources
FR2877181B1 (en) Digital television receiver has phase compensator to offset phase of real and imaginary data based on phase offset signal and outputs phase adjusted data

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

PLFP Fee payment

Year of fee payment: 17

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

PLFP Fee payment

Year of fee payment: 20