Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1982-07-08
1984-09-18
Martin, John C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 942
Patent
active
044727313
ABSTRACT:
In a PAL-SECAM color television receiver comprising a transcoder for converting a SECAM signal into a signal which is processable by a PAL decoder, and a systems change-over switch which can be operated by a SECAM identification circuit for automatically adapting the receiver to the reception of PAL or SECAM signals, a blocking circuit which can be operated by a PAL identification signal is used, which blocking circuit in the event a PAL signal is received blocks the output signal from the SECAM identification circuit so that also in the event that a disturbed PAL signal is received said output signal does not adjust the systems change-over switch to the incorrect position.
REFERENCES:
patent: 4233622 (1980-11-01), Groeneweg
van Damme Eddy M. P. R.
Van Gurp Wilhelmus A. J.
van Keeken Antonius F. C. W.
Briody Thomas A.
Martin John C.
Streeter William J.
Sutherland Jeffrey
U.S. Philips Corporation
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