CA2131711A1 - Auxiliary video data slicer - Google Patents

Auxiliary video data slicer

Info

Publication number
CA2131711A1
CA2131711A1 CA002131711A CA2131711A CA2131711A1 CA 2131711 A1 CA2131711 A1 CA 2131711A1 CA 002131711 A CA002131711 A CA 002131711A CA 2131711 A CA2131711 A CA 2131711A CA 2131711 A1 CA2131711 A1 CA 2131711A1
Authority
CA
Canada
Prior art keywords
signal
data
ric
data slicer
video data
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.)
Granted
Application number
CA002131711A
Other languages
French (fr)
Other versions
CA2131711C (en
Inventor
Enrique Rodriguez-Cavazos
Juri Tults
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.)
Technicolor USA Inc
Original Assignee
Enrique Rodriguez-Cavazos
Juri Tults
Thomson Consumer Electronics, Inc.
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
Application filed by Enrique Rodriguez-Cavazos, Juri Tults, Thomson Consumer Electronics, Inc. filed Critical Enrique Rodriguez-Cavazos
Publication of CA2131711A1 publication Critical patent/CA2131711A1/en
Application granted granted Critical
Publication of CA2131711C publication Critical patent/CA2131711C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Abstract

A data slicer for extracting auxiliary video data from a video signal adapts (212, 215) a data slicing level to the amplitude of the data signal as indicated by the average value of a run-in clock (RIC) signal that is included in the video signal. Control (200, 220, 250) of the slicing level occurs during a window interval (RICWND) that spans an integral number of cycles of the RIC signal. The presence of the RIC signal within the window interval may be verified (200, 220) as part of the slicing level ad-justment operation. The data slicer is suitable for implementation in a digital integrated circuit.
CA002131711A 1992-03-11 1993-01-14 Auxiliary video data slicer Expired - Fee Related CA2131711C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85048192A 1992-03-11 1992-03-11
US850,481 1992-03-11
PCT/US1993/000118 WO1993018613A1 (en) 1992-03-11 1993-01-14 Auxiliary video data slicer

Publications (2)

Publication Number Publication Date
CA2131711A1 true CA2131711A1 (en) 1993-09-16
CA2131711C CA2131711C (en) 2002-10-15

Family

ID=25308241

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002131711A Expired - Fee Related CA2131711C (en) 1992-03-11 1993-01-14 Auxiliary video data slicer

Country Status (10)

Country Link
US (1) US5517249A (en)
EP (1) EP0630545B1 (en)
JP (1) JP3399945B2 (en)
KR (1) KR100290203B1 (en)
CN (1) CN1050256C (en)
CA (1) CA2131711C (en)
DE (1) DE69324573T2 (en)
MY (1) MY110278A (en)
SG (1) SG83630A1 (en)
WO (1) WO1993018613A1 (en)

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US5926491A (en) * 1996-06-26 1999-07-20 Intel Corporation Noise tolerant run-in clock recovery method and apparatus
US5953065A (en) * 1996-06-26 1999-09-14 Intel Corporation Method and apparatus for common vertical blanking interval scan line decoding
US5812217A (en) * 1996-06-26 1998-09-22 Intel Corporation Automatically adjusting anti-ghosting filter coefficients when the coefficients exceed particular values
US6377308B1 (en) * 1996-06-26 2002-04-23 Intel Corporation Method and apparatus for line-specific decoding of VBI scan lines
US5838382A (en) * 1996-06-26 1998-11-17 Intel Corporation Method and apparatus for optimizing starting point for run-in clock recovery
US5812207A (en) * 1996-12-20 1998-09-22 Intel Corporation Method and apparatus for supporting variable oversampling ratios when decoding vertical blanking interval data
US6239843B1 (en) 1997-05-05 2001-05-29 Wavo Corporation Method and system for decoding data in a signal
KR100217182B1 (en) * 1997-05-12 1999-09-01 윤종용 Data slice circuit
US6789124B1 (en) * 1999-07-22 2004-09-07 General Instrument Corporation Multi-standard enhanced inband data receiver
US6317068B1 (en) 1999-08-23 2001-11-13 Level One Communications, Inc. Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface
US6529563B1 (en) 1999-08-23 2003-03-04 Level One Communications, Inc. Method and apparatus for providing a self-sustaining precision voltage and current feedback biasing loop
US6229466B1 (en) 1999-08-23 2001-05-08 Level One Communications, Inc. Digital calibration method and apparatus for multi-bit delta-sigma D/A converter
US6472918B1 (en) 1999-08-23 2002-10-29 Level One Communications, Inc. Self-referencing slicer method and apparatus for high-accuracy clock duty cycle generation
JP3895115B2 (en) * 2001-02-01 2007-03-22 ソニー株式会社 Data transmission method, data transmission device, and data reception device
JP3788253B2 (en) * 2001-03-12 2006-06-21 ソニー株式会社 Data slice circuit
JP4091360B2 (en) * 2002-07-02 2008-05-28 松下電器産業株式会社 Data slicing apparatus and data slicing method
JP2004088623A (en) * 2002-08-28 2004-03-18 Renesas Technology Corp Teletext broadcast data sampling apparatus
JP4297763B2 (en) * 2003-09-29 2009-07-15 三洋電機株式会社 Data slicer circuit, integrated circuit, and data detection method
JP2008508770A (en) 2004-07-29 2008-03-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Data extraction from television signals using adaptable slice levels
KR100640630B1 (en) * 2005-01-17 2006-10-31 삼성전자주식회사 Digital video signal processing apparatus and method for extracting data within Vertical Blanking Interval
US7940921B2 (en) * 2005-06-23 2011-05-10 Agere Systems Inc. Continuous power transfer scheme for two-wire serial link
US7773733B2 (en) * 2005-06-23 2010-08-10 Agere Systems Inc. Single-transformer digital isolation barrier
US8885814B2 (en) * 2006-07-25 2014-11-11 Broadcom Europe Limited Feedback impedance control for driving a signal
US8111739B1 (en) 2007-02-02 2012-02-07 Marvell International Ltd. Detector for low frequency offset distortion
US8537883B1 (en) 2007-02-02 2013-09-17 Marvell International Ltd. Detector for low frequency offset distortion
US8218685B2 (en) * 2009-03-30 2012-07-10 Applied Micro Circuits Corporation Data slicer threshold adjustment for disparity controlled signals
CN102710917A (en) * 2011-03-28 2012-10-03 联咏科技股份有限公司 Slicer level calculating device

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Also Published As

Publication number Publication date
DE69324573D1 (en) 1999-05-27
WO1993018613A1 (en) 1993-09-16
KR950700666A (en) 1995-01-16
CN1079857A (en) 1993-12-22
CA2131711C (en) 2002-10-15
EP0630545B1 (en) 1999-04-21
KR100290203B1 (en) 2001-05-15
DE69324573T2 (en) 1999-08-26
SG83630A1 (en) 2001-10-16
MY110278A (en) 1998-03-31
EP0630545A1 (en) 1994-12-28
JP3399945B2 (en) 2003-04-28
CN1050256C (en) 2000-03-08
JPH07504548A (en) 1995-05-18
US5517249A (en) 1996-05-14

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