Digital signal peaking apparatus with controllable peaking level

Details Digital signal peaking apparatus with controllable peaking level Digital signal peaking apparatus with controllable peaking level

1983-06-24

1985-08-27

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 37, 358 39, H04N 514

Patent

active

045381780

ABSTRACT:
A digital signal peaking apparatus combines input digital signals with filtered and scaled representations thereof to produce controllably peaked digital signals. A digital filter produces the relatively higher frequency components of the input digital signals which are controllably scaled by a digital multiplier in accordance with a multiplier coefficient. A control arrangement develops the multiplier coefficient having a value determined in accordance with the peak magnitude of the higher frequency components of the input digital signals relative to the value of a peaking control level signal.

REFERENCES:
patent: 3333055 (1967-07-01), Krause
patent: 3602737 (1971-08-01), Radecke
patent: 3715477 (1973-02-01), Olsen et al.
patent: 3979683 (1976-09-01), Ikeda
patent: 4009334 (1977-02-01), Sypula
patent: 4167749 (1979-09-01), Burrus
patent: 4268864 (1981-05-01), Green
patent: 4437123 (1984-03-01), Harlan
patent: 4437124 (1984-03-01), Cochran
J. Rossi, "Digital Television Image Enhancement", SMPTE Journal, vol. 84, Jul. 1975, pp. 545-551.
J. Rossi, "Digital Techniques for Reducing Television Noise", SMPTE Journal, vol. 87, Mar. 1978, pp. 134-140.

Affiliated with

Also associated with

Rating

Digital signal peaking apparatus with controllable peaking level does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital signal peaking apparatus with controllable peaking level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signal peaking apparatus with controllable peaking level will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2004709