BR0112954A - Sistema e método para suprir um sinal digital comprimido para um receptor de televisão digital, e, sinal elétrico - Google Patents

Sistema e método para suprir um sinal digital comprimido para um receptor de televisão digital, e, sinal elétrico

Info

Publication number
BR0112954A
BR0112954A BR0112954-6A BR0112954A BR0112954A BR 0112954 A BR0112954 A BR 0112954A BR 0112954 A BR0112954 A BR 0112954A BR 0112954 A BR0112954 A BR 0112954A
Authority
BR
Brazil
Prior art keywords
signal
interpolator
television receiver
digital
supplying
Prior art date
Application number
BR0112954-6A
Other languages
English (en)
Inventor
Thomas A Horwitz
Original Assignee
Zenith Electronics Corp
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 Zenith Electronics Corp filed Critical Zenith Electronics Corp
Publication of BR0112954A publication Critical patent/BR0112954A/pt

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
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

"SISTEMA E MéTODO PARA SUPRIR UM SINAL DIGITAL COMPRIMIDO PARA UM RECEPTOR DE TELEVISãO DIGITAL, E, SINAL ELéTRICO". Um sistema supri um sinal digital comprimido para um receptor de televisão digital e inclui uma fonte de sinal de banda base comprimido. Um codificador codifica o sinal de banda base em um formato digital, e o sinal de banda base tem uma freq³ência. A freq³ência do sinal de banda base codificado é deslocada por um primeiro deslocador de freq³ência. Um primeiro interpolador interpola uma saída do primeiro deslocador de freq³ência, um segundo interpolador que interpola uma saída do primeiro interpolador, e um terceiro interpolador que interpola uma saída do segundo interpolador. Um segundo deslocador de freq³ência desloca uma freq³ência de uma saída do terceiro interpolador para produzir um sinal em um canal selecionado.
BR0112954-6A 2000-08-04 2001-07-23 Sistema e método para suprir um sinal digital comprimido para um receptor de televisão digital, e, sinal elétrico BR0112954A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/632,545 US6724439B1 (en) 2000-08-04 2000-08-04 Low cost VSB encoder and RF modulator for supplying a substantially 6 MHZ VSB signal to digital television receiver
PCT/US2001/023211 WO2002013534A2 (en) 2000-08-04 2001-07-23 Low cost vsb encoder and rf modulator for supplying a substantially 6 mhz vsb signal to digital television receiver

Publications (1)

Publication Number Publication Date
BR0112954A true BR0112954A (pt) 2003-07-08

Family

ID=24535930

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0112954-6A BR0112954A (pt) 2000-08-04 2001-07-23 Sistema e método para suprir um sinal digital comprimido para um receptor de televisão digital, e, sinal elétrico

Country Status (10)

Country Link
US (1) US6724439B1 (pt)
KR (1) KR100793829B1 (pt)
AR (1) AR030320A1 (pt)
AU (1) AU2001280719A1 (pt)
BR (1) BR0112954A (pt)
CA (1) CA2417030A1 (pt)
EC (1) ECSP034457A (pt)
MX (1) MXPA03000974A (pt)
TW (1) TW548988B (pt)
WO (1) WO2002013534A2 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100351829B1 (ko) 2000-09-26 2002-09-11 엘지전자 주식회사 디지털 통신 시스템
KR100351831B1 (ko) 2000-10-02 2002-09-11 엘지전자 주식회사 Ｖｓｂ 송신 시스템
KR100673419B1 (ko) 2000-12-28 2007-01-24 엘지전자 주식회사 전송 시스템 및 데이터 처리 방법
KR100674423B1 (ko) 2001-01-19 2007-01-29 엘지전자 주식회사 송/수신 시스템 및 데이터 처리 방법
US7631340B2 (en) 2001-04-18 2009-12-08 Lg Electronics Inc. VSB communication system
US6947487B2 (en) * 2001-04-18 2005-09-20 Lg Electronics Inc. VSB communication system
US7971225B2 (en) * 2002-02-08 2011-06-28 Finisar Corporation Bandpass component decimation and transmission of data in cable television digital return path
GB2394373B (en) * 2002-10-19 2005-12-14 Zarlink Semiconductor Ltd Radio frequency tuner
US7432981B1 (en) * 2004-12-13 2008-10-07 Nvidia Corporation Apparatus, system, and method for processing digital audio/video signals
CA2562427C (en) * 2005-10-05 2012-07-10 Lg Electronics Inc. A digital broadcast system and method of processing traffic information
US7804860B2 (en) * 2005-10-05 2010-09-28 Lg Electronics Inc. Method of processing traffic information and digital broadcast system
US8184210B2 (en) * 2006-08-22 2012-05-22 STMicroelectronics International Digital Radio Frequency (RF) Modulator

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3314603A1 (de) 1983-04-22 1984-10-25 Siemens AG, 1000 Berlin und 8000 München Verfahren zur digitalen quadraturamplitudenmodulation
GB2214374A (en) 1988-01-06 1989-08-31 Philips Electronic Associated Ssb signal generator
US5504785A (en) * 1993-05-28 1996-04-02 Tv/Com Technologies, Inc. Digital receiver for variable symbol rate communications
US5588025A (en) * 1995-03-15 1996-12-24 David Sarnoff Research Center, Inc. Single oscillator compressed digital information receiver
US5696796A (en) 1995-06-07 1997-12-09 Comsat Corporation Continuously variable if sampling method for digital data transmission
GB9511551D0 (en) * 1995-06-07 1995-08-02 Discovision Ass Signal processing system
US5764701A (en) * 1996-03-04 1998-06-09 Zenith Electronics Corporation VSB modulator
US5801595A (en) 1997-01-10 1998-09-01 Harris Corporation Device and method for digital vestigial sideband modulation
US5978823A (en) * 1997-01-27 1999-11-02 Hitachi America, Ltd. Methods and apparatus for implementing and controlling a digital modulator
US5973755A (en) * 1997-04-04 1999-10-26 Microsoft Corporation Video encoder and decoder using bilinear motion compensation and lapped orthogonal transforms
US6549242B1 (en) * 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
ID22693A (id) 1998-02-06 1999-12-09 Zenith Electronics Corp Penyandi vsb dan modulator rf biaya rendah untuk memasok sinyal jalur alas vsb ke masukan rf dari penerima televisi digital
US6430234B1 (en) * 1998-05-18 2002-08-06 Sarnoff Corporation Method and apparatus for performing phase detection and timing recovery for a vestigial sideband receiver
US6343207B1 (en) * 1998-11-03 2002-01-29 Harris Corporation Field programmable radio frequency communications equipment including a configurable if circuit, and method therefor
US6810090B1 (en) 1999-02-18 2004-10-26 Sarnoff Corporation Direct digital vestigial sideband (VSB) modulator
US6711214B1 (en) 2000-04-07 2004-03-23 Adc Broadband Wireless Group, Inc. Reduced bandwidth transmitter method and apparatus

Also Published As

Publication number Publication date
CA2417030A1 (en) 2002-02-14
KR20030062311A (ko) 2003-07-23
MXPA03000974A (es) 2003-10-06
ECSP034457A (es) 2003-05-26
TW548988B (en) 2003-08-21
AR030320A1 (es) 2003-08-20
AU2001280719A1 (en) 2002-02-18
KR100793829B1 (ko) 2008-01-11
US6724439B1 (en) 2004-04-20
WO2002013534A2 (en) 2002-02-14
WO2002013534A3 (en) 2002-05-10

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: CONFORME ARTIGO 10O DA RESOLUCAO 124/06, CABE SER ARQUIVADO REFERENTE AO NAO RECOLHIMENTO DA 9A E 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.