Descrambling apparatus for a television signal

Details Descrambling apparatus for a television signal Descrambling apparatus for a television signal

1983-11-18

1986-12-16

Buczinski, Stephen C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358114, H04N 7167, H04N 716, H04K 100

Patent

active

046301127

ABSTRACT:
In an apparatus for descrambling a scrambled television signal, an elastic surface wave filter is used. This elastic surface wave filter has an interdigital electrode having an electrode pattern similar to at least portion of the waveforms of a luminance signal section of the scrambled television signal to be input. The elastic surface wave filter generates a response pulse only when the waveforms which are analogous to the electrode pattern of the interdigital electrode of the scrambled television signal were input, thereby descrambling the television signal using this response pulse.

REFERENCES:
patent: 3663899 (1972-05-01), Dieulesaint et al.
patent: 4295155 (1981-10-01), Jarger et al.
patent: 4396946 (1983-08-01), Bond

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