CA2280161A1 - Vsb encoder and rf modulator for digital television receiver - Google Patents

Vsb encoder and rf modulator for digital television receiver Download PDF

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Publication number
CA2280161A1
CA2280161A1 CA002280161A CA2280161A CA2280161A1 CA 2280161 A1 CA2280161 A1 CA 2280161A1 CA 002280161 A CA002280161 A CA 002280161A CA 2280161 A CA2280161 A CA 2280161A CA 2280161 A1 CA2280161 A1 CA 2280161A1
Authority
CA
Canada
Prior art keywords
signal
television receiver
modulator
digital television
encoder
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
CA002280161A
Other languages
French (fr)
Other versions
CA2280161C (en
Inventor
Richard W. Citta
Raymond C. Hauge
Paul Adam Snopko
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.)
Zenith Electronics LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2280161A1 publication Critical patent/CA2280161A1/en
Application granted granted Critical
Publication of CA2280161C publication Critical patent/CA2280161C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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 MPEG 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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits
    • 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

Abstract

An encoder-modulator (12, 13, 15) for coupling a digital baseband television signal to a VSB digital television receiver (24) that includes filters (26), equalization circuitry (30) and forward error correction circuitry (31) for correcting signal impairments that are below a given threshold. The encoder modulator processes the baseband signal for low power transmission on an RF channel with less-than-nominal bandpass characteristics. A coaxial cable (23) or other low noise communication link directly connects the RF signal to the RF input of the television receiver (24). Any errors or signal impairments in the transmitted signal that are below the predetermined threshold are corrected by the filters and equalization circuitry built into the VSB digital television receiver (24).
CA002280161A 1998-02-06 1999-01-06 Vsb encoder and rf modulator for digital television receiver Expired - Lifetime CA2280161C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2027498A 1998-02-06 1998-02-06
US09/020,274 1998-02-06
PCT/US1999/000130 WO1999040721A1 (en) 1998-02-06 1999-01-06 Vsb encoder and rf modulator for digital television receiver

Publications (2)

Publication Number Publication Date
CA2280161A1 true CA2280161A1 (en) 1999-08-12
CA2280161C CA2280161C (en) 2004-10-19

Family

ID=21797699

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002280161A Expired - Lifetime CA2280161C (en) 1998-02-06 1999-01-06 Vsb encoder and rf modulator for digital television receiver

Country Status (12)

Country Link
US (1) US6559898B1 (en)
JP (1) JP2001519993A (en)
KR (1) KR100470737B1 (en)
CN (1) CN1148958C (en)
AR (1) AR014501A1 (en)
AU (1) AU2026499A (en)
BR (1) BR9904769A (en)
CA (1) CA2280161C (en)
HK (1) HK1027701A1 (en)
ID (1) ID22693A (en)
TW (1) TW416219B (en)
WO (1) WO1999040721A1 (en)

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JP4517436B2 (en) * 2000-02-09 2010-08-04 ソニー株式会社 RECEPTION SYSTEM, RECEPTION DEVICE, AND RECEPTION SYSTEM CONTROL METHOD
TW501371B (en) * 2000-03-03 2002-09-01 Sony Computer Entertainment Inc Signal converter
US6724439B1 (en) 2000-08-04 2004-04-20 Zenith Electronics Corporation Low cost VSB encoder and RF modulator for supplying a substantially 6 MHZ VSB signal to digital television receiver
KR100424496B1 (en) * 2000-08-31 2004-03-26 삼성전자주식회사 Method and apparatus for controlling equalizer using sync signal in digital vestigial sideband system
US7352411B2 (en) * 2000-12-15 2008-04-01 Broadcom Corporation Digital IF demodulator
US6919930B2 (en) * 2001-04-06 2005-07-19 Zenith Electronics Corporation Digital television signal translator
DE10163798A1 (en) * 2001-12-22 2003-07-03 Philips Intellectual Property TV signal receiver with universal output for various surface wave filters
US7847864B1 (en) * 2002-03-01 2010-12-07 Broadcom Corporation All digital radio frequency modulator
US7489362B2 (en) 2003-03-04 2009-02-10 Broadcom Corporation Television functionality on a chip
KR100561472B1 (en) * 2003-10-21 2006-03-16 삼성전자주식회사 Apparatus and method for transmitting and receiving multiple signals inclusively
US20070076819A1 (en) * 2005-09-30 2007-04-05 Axcera, Llc 8VSB bandwidth-limited peak filter
GB0614543D0 (en) * 2006-07-21 2006-08-30 Vodafone Plc RF Distribution
US8139957B2 (en) * 2008-06-24 2012-03-20 General Instrument Corporation High sensitivity optical receiver employing a high gain amplifier and an equalizing circuit
WO2015027903A1 (en) * 2013-08-27 2015-03-05 Zte Corporation Optical communication using super-nyquist signals
KR102118976B1 (en) 2018-08-24 2020-06-04 주식회사 비즈닉스 Showcase for contact lenses and method for displaying contact lenses with it
KR20200074042A (en) 2018-12-14 2020-06-24 장세진 Showcase system for contact lenses and method for controlling for displaying contact lenses with the same
KR20200074041A (en) 2018-12-14 2020-06-24 장세진 Showcase for contact lenses and method for displaying contact lenses with it
KR20220015200A (en) 2020-07-30 2022-02-08 주식회사 비즈닉스 Contact-lense virtual fitting system and method for genetrating virtural fitting image of selected contact-lense with the system
KR20220015201A (en) 2020-07-30 2022-02-08 주식회사 비즈닉스 Contact dispalying stand, contact-lense virtual fitting system with the same and method for genetrating virtural fitting image of selected contact-lense with the system
KR20220015202A (en) 2020-07-30 2022-02-08 주식회사 비즈닉스 Contact-lense cube, contact-lense virtual fitting system with the same and method for genetrating virtural fitting image of selected contact-lense with the system

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US5040063A (en) 1988-04-04 1991-08-13 Zenith Electronics Corporation TV signal transmission systems and methods
US5270816A (en) 1988-04-04 1993-12-14 Zenith Electronics Corporation TV signal transmission systems and methods
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US5029003A (en) 1989-12-18 1991-07-02 General Electric Company Apparatus for incorporating digital signals with a standard TV signal
US5086340A (en) 1990-10-19 1992-02-04 Zenith Electronics Corporation Co-channel interference reduction system for digital high definition television
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KR0183143B1 (en) * 1993-02-17 1999-05-15 안쏘니 제이. 살리, 쥬니어 Multiple-modulation communication system
US5602595A (en) 1993-12-29 1997-02-11 Zenith Electronics Corporation ATV/MPEG sync system
US5745187A (en) 1994-02-10 1998-04-28 U.S. Philips Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission using a bank of rejection filters
US5602602A (en) * 1994-02-10 1997-02-11 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission having a simplified rejection filter
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Also Published As

Publication number Publication date
TW416219B (en) 2000-12-21
ID22693A (en) 1999-12-09
US6559898B1 (en) 2003-05-06
HK1027701A1 (en) 2001-01-19
AR014501A1 (en) 2001-02-28
AU2026499A (en) 1999-08-23
CA2280161C (en) 2004-10-19
JP2001519993A (en) 2001-10-23
WO1999040721A1 (en) 1999-08-12
BR9904769A (en) 2000-03-08
CN1256044A (en) 2000-06-07
CN1148958C (en) 2004-05-05
KR100470737B1 (en) 2005-03-07
KR20010005743A (en) 2001-01-15

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EEER Examination request
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Effective date: 20190107

MKEX Expiry

Effective date: 20190107