Digital integrated frequency demodulator subcircuit

Details Digital integrated frequency demodulator subcircuit Digital integrated frequency demodulator subcircuit

1986-02-18

1987-05-05

LaRoche, Eugene R.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329110, 329122, 375 82, 358 23, H03D 318

Patent

active

046635955

ABSTRACT:
A subcircuit for the demodulation of SECAM color-television signals has two signal paths each including a low-pass filter (tp1, tp2) which has the transfer function H(z)=(1+ z.sup.-1).sup.5. The amount of area required by the subcircuit on an integrated-circuit chip is thus kept small.

REFERENCES:
patent: 4528511 (1985-07-01), Smith
patent: 4543532 (1985-09-01), Kasser
patent: 4547737 (1985-10-01), Gibson
patent: 4608540 (1986-08-01), Tsuchiya et al.
Fernseh & Kino Technik, Band 37, Nr. 5, Mai 1983, Seiten 203-215, Berlin, DE; E. Deguffroy u.a.: "Kammfilter zur Decodierung von Videosignale 3".

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