MX9800509A - GENERADOR DE FORMA DE ONDA PARA LA INSERCION DE DATOS DE SEñALES DIGITALES DE TELEVISION. - Google Patents

GENERADOR DE FORMA DE ONDA PARA LA INSERCION DE DATOS DE SEñALES DIGITALES DE TELEVISION.

Info

Publication number
MX9800509A
MX9800509A MX9800509A MX9800509A MX9800509A MX 9800509 A MX9800509 A MX 9800509A MX 9800509 A MX9800509 A MX 9800509A MX 9800509 A MX9800509 A MX 9800509A MX 9800509 A MX9800509 A MX 9800509A
Authority
MX
Mexico
Prior art keywords
vbi
data
syntax
symbol
wavefrom
Prior art date
Application number
MX9800509A
Other languages
English (en)
Other versions
MXPA98000509A (es
Inventor
G Kent Walker
Ray Nuber
Original Assignee
Nextlevel Systems Inc
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 Nextlevel Systems Inc filed Critical Nextlevel Systems Inc
Publication of MX9800509A publication Critical patent/MX9800509A/es
Publication of MXPA98000509A publication Critical patent/MXPA98000509A/es

Links

Classifications

    • 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
    • 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
    • H04N7/087—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 with signal insertion during the vertical blanking interval only
    • H04N7/088—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 with signal insertion during the vertical blanking interval only the inserted signal being digital
    • 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
    • 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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream

Landscapes

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

Abstract

Un generador en forma de onda digital cumple con diferentes estándares de intervalo de puesta en blanco vertical (VBI), y se inserta en las porciones de intervalo de puesta en blanco vertical de una señal de video de componente digital. Una zona de memoria intermedia recibe los símbolos que llevan datos del intervalo de puesta en blanco vertical para un servicio de intervalo de puesta en blanco vertical particular de acuerdo con la sintaxis de datos de un usuario, que identifica una línea de television en donde se van a insertar los datos del intervalo de puesta en blanco vertical. Un procesador de símbolos responde a la informacion proporcionada por la sintaxis. Esta informacion indica el numero de pixeles (elementos de imagen) representados por símbolo, un tiempo de transicion de símbolo, y el numero de símbolos que llevan datos que se van a insertar en la porcion del intervalo de puesta en blanco vertical. El procesador de símbolos proporciona los datos del intervalo de puesta en blanco vertical en un formato de acuerdo con el servicio de intervalo de puesta en blanco vertical particular. Un circuito de cronometraje responde a un tiempo de inicio proporcionado por la sintaxis para insertar los datos del intervalo de puesta en blanco vertical. Un circuito de control de nivel ajusta al nivel de los datos del intervalo de puesta en blanco vertical antes de insertarse en la porcion de intervalo de puesta en blanco vertical, en respuesta a los valores de amplitud proporcionados por la sintaxis.
MXPA/A/1998/000509A 1997-01-16 1998-01-16 Generador de forma de onda para la insercion de datos en señales digitales de television MXPA98000509A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3539597P 1997-01-16 1997-01-16
US60/035,395 1997-01-16
US08887046 1997-07-02
US08/887,046 US6160587A (en) 1997-01-16 1997-07-02 Waveform generator for insertion of data into digital television signals

Publications (2)

Publication Number Publication Date
MX9800509A true MX9800509A (es) 1998-10-31
MXPA98000509A MXPA98000509A (es) 1999-01-11

Family

ID=

Also Published As

Publication number Publication date
TW369777B (en) 1999-09-11
EP0854648A3 (en) 1999-12-15
CN1194542A (zh) 1998-09-30
CA2226588C (en) 2004-08-03
KR19980070568A (ko) 1998-10-26
EP0854648A2 (en) 1998-07-22
CA2226588A1 (en) 1998-07-16
CN1110199C (zh) 2003-05-28
US6160587A (en) 2000-12-12

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Legal Events

Date Code Title Description
FG Grant or registration
HC Change of company name or juridical status

Owner name: CRAYOLA LLC

MM Annulment or lapse due to non-payment of fees