BR0016856A - Aparelho de faixa lateral residual (vsb) digital - Google Patents

Aparelho de faixa lateral residual (vsb) digital

Info

Publication number
BR0016856A
BR0016856A BR0016856-4A BR0016856A BR0016856A BR 0016856 A BR0016856 A BR 0016856A BR 0016856 A BR0016856 A BR 0016856A BR 0016856 A BR0016856 A BR 0016856A
Authority
BR
Brazil
Prior art keywords
vsb
digital
downstream
data
remodeler
Prior art date
Application number
BR0016856-4A
Other languages
English (en)
Inventor
Raymond C Hauge
Gary J Sgrignoli
Paul A Snopko
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 BR0016856A publication Critical patent/BR0016856A/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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • 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
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • 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
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • 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
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Communication Control (AREA)

Abstract

"APARELHO DE FAIXA LATERAL (VSB) DIGITAL". Um sistema de comunicação compreende uma fonte de dados digitais incluindo um remodulador VSB, tal como um VCR, e um dispositivo VSB digital a jusante, tal como uma televisão. O remodulador VSB digital remodula dados digitais a partir da fonte de dados recebida em um dos diversos canais, para dados VSB digitais em um canal a jusante, e transmite os dados VSB digitais ao dispositivo VSB digital a jusante no canal a jusante, a uma taxa de símbolo f~ s~. O dispositivo VSB digital a jusante transmite informação, tal como sua identificação, ao remodulador VSB digital em um canal a montante correspondente a uma freq³ência de (N/M) fs da portadora. Os diversos canais e o canal a jusante ocupam uma largura de faixa acima de cerca de 50 MHz, e (N/M) f~ s~, está abaixo desta largura de faixa.
BR0016856-4A 1999-12-30 2000-11-21 Aparelho de faixa lateral residual (vsb) digital BR0016856A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47667399A 1999-12-30 1999-12-30
PCT/US2000/032268 WO2001050757A1 (en) 1999-12-30 2000-11-21 Rf back channel for dtv

Publications (1)

Publication Number Publication Date
BR0016856A true BR0016856A (pt) 2002-09-10

Family

ID=23892792

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0016856-4A BR0016856A (pt) 1999-12-30 2000-11-21 Aparelho de faixa lateral residual (vsb) digital

Country Status (8)

Country Link
KR (1) KR20020067923A (pt)
AR (1) AR028885A1 (pt)
AU (1) AU1662701A (pt)
BR (1) BR0016856A (pt)
CA (1) CA2392683A1 (pt)
MX (1) MXPA02006552A (pt)
TW (1) TW506221B (pt)
WO (1) WO2001050757A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6940936B2 (en) * 2001-11-26 2005-09-06 Thomson Licensing S.A. Alternate timing signal for a vestigial sideband modulator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535206A (en) * 1994-11-14 1996-07-09 Zenith Electronics Corporation Upstream data transmission system for cable television
GB9602809D0 (en) * 1996-02-12 1996-04-10 Northern Telecom Ltd A bidirectional communications network
US6154095A (en) * 1997-02-27 2000-11-28 Seiko Epson Corporation Phase locked loop clock source provided with a plurality of frequency adjustments

Also Published As

Publication number Publication date
WO2001050757A1 (en) 2001-07-12
TW506221B (en) 2002-10-11
KR20020067923A (ko) 2002-08-24
MXPA02006552A (es) 2003-04-10
AR028885A1 (es) 2003-05-28
AU1662701A (en) 2001-07-16
CA2392683A1 (en) 2001-07-12

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired