EP 1042916 A1 20001011 - AN AUXILIARY DIGITAL DATA EXTRACTOR IN A TELEVISION
Title (en)
AN AUXILIARY DIGITAL DATA EXTRACTOR IN A TELEVISION
Title (de)
ABTRENNVORRICHTUNGVON HILFSDATEN IN EINEM FERNSEHER
Title (fr)
EXTRACTEUR DE DONNEES NUMERIQUES AUXILIAIRES DANS UNE TELEVISION
Publication
Application
Priority
US 9723973 W 19971223
Abstract (en)
[origin: WO9933269A1] An auxiliary digital data extractor in a television receiver includes a source of a composite video signal. The composite video signal includes an auxiliary digital data component which is either a first frame code having a predetermined number of bits and auxiliary data in a first format, or a second frame code having the same number of bits and auxiliary data in a second format. A frame code detector is coupled to the composite video signal source. The frame code detector is responsive to one subset of the frame code bits to detect the first frame code and to a different subset of frame code bits to detect the second frame code. An auxiliary data utilization circuit is coupled to the composite video signal source and the frame code detector. The auxiliary data utilization circuit receives auxiliary data in the either first format when the first frame code is detected or the second format when the second frame code is detected.
IPC 1-7
IPC 8 full level
H04N 7/025 (2006.01); H04N 7/03 (2006.01); H04N 7/035 (2006.01)
CPC (source: EP KR)
H04N 7/035 (2013.01 - EP KR)
Citation (search report)
See references of WO 9933269A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9933269 A1 19990701; AU 5721998 A 19990712; EP 1042916 A1 20001011; JP 2001527348 A 20011225; KR 100480413 B1 20050406; KR 20010033387 A 20010425; MX PA00006183 A 20041203
DOCDB simple family (application)
US 9723973 W 19971223; AU 5721998 A 19971223; EP 97953479 A 19971223; JP 2000526049 A 19971223; KR 20007006855 A 20000620; MX PA00006183 A 19971223