Broadcasting signal detecting circuit for SECAM and PAL signal f

Details Broadcasting signal detecting circuit for SECAM and PAL signal f Broadcasting signal detecting circuit for SECAM and PAL signal f

1992-03-13

1994-02-15

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Chrominance signal demodulator

348691, 348506, H04N 1120, H04N 947

Patent

active

052871703

ABSTRACT:
A broadcasting signal detecting circuit of a SECAM system can easily determine whether the received broadcasting is from a PAL or SECAM system in accordance with the existence of a color burst at the position of a delayed burst gate pulse, using the fact that within the back porch of the horizontal sync signal, the color burst loading period is different.

REFERENCES:
patent: 4240102 (1980-12-01), Groeneweg
patent: 4438451 (1984-03-01), Hinn
patent: 4472731 (1984-09-01), van Gurp

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