Circuit for decoding chrominance signals in the Secam television system and a television receiver comprising this circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 2, 1981
Grant Date -
N/A
app pub date -
Jun 5, 1979
filing date -
Jun 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a circuit for decoding chrominance signals from the composite videofrequency signal in the Secam color television system. In order to direct each chrominance signal to the corresponding channel, it is proposed in accordance with the invention to extract the demodulated signals at the beginning of each line and to treat them in the first place by a controlled circuit which equalizes their d.c. voltages, in the second place by a color identification circuit which synchronizes the commutator with the television transmitter and in the third place by a 'keeper' circuit for identifying the Secam process which inhibits the chrominance circuit if the transmission is by another process or parasitized. Application to television receivers using the Secam system.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully