Adaptive comb filter

Details Adaptive comb filter Adaptive comb filter

1988-09-29

1990-11-27

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 978

Patent

active

049740652

ABSTRACT:
Various filter circuits for processing digitized color television signals are disclosed. Particularly, there are disclosed several embodiments of a luminance/chrominance signal separating filter with which separated, digitized luminance and chrominance are derived with a minimum amount of interference therebetween by determining the direction from a given point in which there is a minimum amount of change in the digitized image signal. Also, there is disclosed a subnyquist sampling filter which operates upon this same principle.

REFERENCES:
patent: 2921124 (1960-01-01), Graham
patent: 4141035 (1979-02-01), Maxemchuk et al.
patent: 4352122 (1982-09-01), Reitmeier et al.
patent: 4464686 (1984-08-01), Reitmeier
patent: 4605966 (1986-08-01), Collins
patent: 4626895 (1986-12-01), Reitmeier
Maxemchuk et al., Separation of NTSC Signals by Minimum Mean Square Error Filters and Adaptive Filters, IEEE Transactions on Communications, vol. COM 26, No. 5, May 1978, pp. 583-593.
Yoshimitsu Nakajima et al, Improvement of Picture Quality of NTSL and PAL Systems by Digital Signal Processing, IEEE Transactions on Consumer Electronics, vol. CE-31, No. 4, Nov. 1985.
J. P. Rossi, "Digital TV Comb Filter with Adaptive Features", IEEE Conf. Proc., 1976, pp. 267-282.
T. O. Okada, "New Filter Technology in Picture Processing", IEEE Trans., vol. CE-28, No, 3, 157-167, 1982.
J. P. Rossi, "Sub-Nyquist-Encoded PCM NTSC Color Television", SMPTE Journal, Jan. 1976, vol. 85, No. 1, pp. 1-6.

Affiliated with

Also associated with

Rating

Adaptive comb filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive comb filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive comb filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1035945