MX9709204A - Deteccion de interferencia de canales compartidos en señales digitales de television. - Google Patents

Deteccion de interferencia de canales compartidos en señales digitales de television.

Info

Publication number
MX9709204A
MX9709204A MX9709204A MX9709204A MX9709204A MX 9709204 A MX9709204 A MX 9709204A MX 9709204 A MX9709204 A MX 9709204A MX 9709204 A MX9709204 A MX 9709204A MX 9709204 A MX9709204 A MX 9709204A
Authority
MX
Mexico
Prior art keywords
channel interference
signal
ntsc
detection
digital television
Prior art date
Application number
MX9709204A
Other languages
English (en)
Other versions
MXPA97009204A (es
Inventor
Larry E Nielsen
Gary J Sgrignoli
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 MX9709204A publication Critical patent/MX9709204A/es
Publication of MXPA97009204A publication Critical patent/MXPA97009204A/es

Links

Classifications

    • 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
    • H04N5/211—Ghost signal cancellation
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Color Television Systems (AREA)

Abstract

La presente invencion se refiere a un receptor para recibir una señal de television avanzada digitalmente codificada (ATV) que comprende una pluralidad de símbolos de multinivel y que tiene señales de sincronizacion de campo recurrentes en un área de interferencia de canales compartidos y otra, el receptor está caracterizado porque incluye un medio para combinar porciones correspondientes de las señales de sincronizacion de campo para desarrollar una señal de sustraccion, un medio para procesar la señal de sustraccion para reducir la interferencia de canales compartidos, un medio de comparacion para comparar la señal de sustraccion con la señal de sustraccion procesada, y un medio para procesar selectivamente la señal de ATV para reducir la iterferencia de canales compartidos sensible al medio de comparacion.
MXPA/A/1997/009204A 1995-06-07 1997-11-27 Deteccion de interferencia de canales compartidosen señales digitales de television MXPA97009204A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08475713 1995-06-07
US08/475,713 US5594496A (en) 1995-06-07 1995-06-07 Detection of co-channel interference in digital television signals

Publications (2)

Publication Number Publication Date
MX9709204A true MX9709204A (es) 1998-07-31
MXPA97009204A MXPA97009204A (es) 1998-11-09

Family

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Also Published As

Publication number Publication date
WO1996041466A1 (en) 1996-12-19
JP3264935B2 (ja) 2002-03-11
CN1080969C (zh) 2002-03-13
BR9608556A (pt) 1999-07-06
KR19990022089A (ko) 1999-03-25
TW298703B (es) 1997-02-21
HK1009908A1 (en) 1999-10-08
JPH11502388A (ja) 1999-02-23
CA2221317C (en) 2001-07-31
CN1187276A (zh) 1998-07-08
US5594496A (en) 1997-01-14
KR100270893B1 (ko) 2000-11-01
CA2221317A1 (en) 1996-12-19

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees