Television – Image signal processing circuitry specific to television – Color television signal processing
Patent
1993-02-23
1994-04-26
Groody, James J.
Television
Image signal processing circuitry specific to television
Color television signal processing
36472416, 348607, H04N 964
Patent
active
053071573
ABSTRACT:
A digital video signal processing apparatus for reducing the data rate of, and interpolating digital, video signals of a component format. The apparatus comprises a half-band high pass filter having a coefficient profile equivalent to that obtained by setting a center coefficient of an odd-order half-band low pass filter to zero, or a notch filter having a coefficient profile equivalent to that obtained by eliminating a center coefficient and even-numbered coefficients of such a low pass filter, and a delay line for giving a predetermined delay time to the signal supplied thereto, whereby the data rate of multiplexed or time-divided signals can be reduced, or the signals interpolated, in a relatively simple design employing a single digital filter.
REFERENCES:
patent: 4538178 (1985-08-01), Bolger
patent: 4668988 (1987-05-01), Sasaki
patent: 4835723 (1989-05-01), Hansen
patent: 4837624 (1989-06-01), Heitmann
patent: 4847684 (1989-07-01), Eino
patent: 4947408 (1990-08-01), Sadr
patent: 5103416 (1992-04-01), Cavallotti
patent: 5194939 (1993-03-01), Kobayashi et al.
Patent Abstracts of Japan, vol. 7, No. 62 (E-164)(1207) Mar. 15, 1983 & JP-A-57 208 722 (Sony) Dec. 21, 1982.
Crochiere et al. `Multirate Digital Signal Processing` 1986, Prentice-Hall, Englewood Cliffs, US paragraph 7.7; FIG. 7.59 A.
Kobayashi Nobuyoshi
Kominami Hisanori
Frommer William S.
Groody James J.
Hsia Sherrie
Sinderbrand Alvin
Sony Corporation
LandOfFree
Digital video signal processing apparatus for data rate down-con 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 video signal processing apparatus for data rate down-con, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital video signal processing apparatus for data rate down-con will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1715355