MX173513B - Receptor para television - Google Patents

Receptor para television

Info

Publication number
MX173513B
MX173513B MX025939A MX2593991A MX173513B MX 173513 B MX173513 B MX 173513B MX 025939 A MX025939 A MX 025939A MX 2593991 A MX2593991 A MX 2593991A MX 173513 B MX173513 B MX 173513B
Authority
MX
Mexico
Prior art keywords
signals
medium
line scan
frame
output signals
Prior art date
Application number
MX025939A
Other languages
English (en)
Inventor
Scott Carroll Knauer
Arun Narayan Netravali
Original Assignee
American Telephone & Telegraph
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 American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of MX173513B publication Critical patent/MX173513B/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • 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 encoded video stream 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
    • 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
    • H04N7/0803—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 using frequency interleaving, e.g. with precision offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/166—Passage/non-passage of the television signal, e.g. jamming, band suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Noise Elimination (AREA)
  • Television Signal Processing For Recording (AREA)
  • Color Television Systems (AREA)

Abstract

La presente invención se refiere a un receptor de televisión (TV), que incluye un medio, que responde a una señal de entrada para recibir una pluralidad de señales de exploración de línea durante el intervalo de exploración de línea, de un cuadro o imagen de TV, y que recibe señales de vector durante un intervalo de retardo de el cuadro de TV, un medio separador de cuadro para almacenar un grupo de señales en curso, que representan por lo menos una porción de un cuadro de video, un medio traductor o retransmisor para combinar el grupo de señales en curso, almacenadas en el medio separador con señales de vector, un medio para aumentar las señales de salida del medio traductor en respuesta a las señales de exploración de línea, y un medio para almacenar las señales de salida del medio, para su aumento o incremento en el medio separador de cuadro, caracterizado por: un circuito de desacentuación, interpuesto entre las señales de entrada y el meido para recibirlas, que incluye: un medio retardador, con capacidad para responder a las señales de exploración de línea, dentro de las señales de entrada, para almacenar señales de un número preseleccionado de señales de exploración de línea; un medio de atenuación, con capacidad para responder a las señales de exploración de línea, dentro de las señales de entrada, para atenuar la señal de la pluralidad de señales de exploración de línea, por un factor seleccionado; y un medio para combinar las señales de salida de un medio de retardo, y las señales de salida del medio de atenuación, para desarrollar señales de salida del circuito de pre-acentuación.
MX025939A 1990-06-01 1991-05-27 Receptor para television MX173513B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/532,526 US5144435A (en) 1990-06-01 1990-06-01 Noise immunity in N signals

Publications (1)

Publication Number Publication Date
MX173513B true MX173513B (es) 1994-03-10

Family

ID=24122169

Family Applications (1)

Application Number Title Priority Date Filing Date
MX025939A MX173513B (es) 1990-06-01 1991-05-27 Receptor para television

Country Status (5)

Country Link
US (1) US5144435A (es)
JP (1) JP2587025B2 (es)
KR (1) KR920001956A (es)
CA (1) CA2042163C (es)
MX (1) MX173513B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62110573A (ja) * 1985-11-08 1987-05-21 Mitsubishi Motors Corp 後輪操舵装置
US5438369A (en) * 1992-08-17 1995-08-01 Zenith Electronics Corporation Digital data interleaving system with improved error correctability for vertically correlated interference
US6009123A (en) * 1994-04-01 1999-12-28 Fujitsu Limited Process and system for transferring vector signal with precoding for signal power reduction
US5686966A (en) * 1994-04-06 1997-11-11 De La Cierva, Sr.; Juan Digital data transmission system for transmitting digital data in a predetermined bandwidth without distortion
US5632504A (en) * 1994-11-21 1997-05-27 Gallagher; Daniel M. Trailer spring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703350A (en) * 1985-06-03 1987-10-27 Picturetel Corporation Method and apparatus for efficiently communicating image sequences
JPS6240887A (ja) * 1985-08-17 1987-02-21 Nippon Hoso Kyokai <Nhk> エンフアシス方式
JPS6318811A (ja) * 1986-07-11 1988-01-26 Victor Co Of Japan Ltd 雑音低減回路
US4684983A (en) * 1986-07-31 1987-08-04 Rca Corporation Non-linear processor for reducing the dynamic range of a digitized error signal
US4851906A (en) * 1986-11-04 1989-07-25 Nec Corporation Data compression using orthogonal transform and vector quantization
US4837611A (en) * 1988-02-03 1989-06-06 Faroudja Y C Wideband NTSC-compatible transmission system with noise reduction processing
JPH01204573A (ja) * 1988-02-10 1989-08-17 Sony Corp 雑音低減回路
US4918515A (en) * 1988-06-20 1990-04-17 Faroudja Y C Compatible television transmission system with separate preemphasis path within single channel

Also Published As

Publication number Publication date
CA2042163C (en) 1995-02-07
JP2587025B2 (ja) 1997-03-05
US5144435A (en) 1992-09-01
KR920001956A (ko) 1992-01-30
CA2042163A1 (en) 1991-12-02
JPH0646376A (ja) 1994-02-18

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