Circle correction in digital low-pass filter

Details Circle correction in digital low-pass filter Circle correction in digital low-pass filter

2006-11-21

2006-11-21

Kelley, Chris (Department: 2623)

Television

Image signal processing circuitry specific to television

Hue control

C348S649000, C348S651000, C708S301000

Reexamination Certificate

active

07139037

ABSTRACT:
A filter circuit is provided which has a filtered input and an unfiltered input. The filtered input passes through delay elements to coefficient circuitry. The unfiltered input passes to the coefficient circuitry without passing through the delay elements. In this manner, an unfiltered offset can be added to the filtered output. This filter is especially useful when the filtered value is in phase representation form; for example, when the filter value is a hue value encoded as a phase.

REFERENCES:
patent: 3688021 (1972-08-01), Ekstrand
patent: 4091411 (1978-05-01), Sanada et al.
patent: 4197556 (1980-04-01), Isono et al.
patent: 4644389 (1987-02-01), Nakagawa et al.
patent: 4714954 (1987-12-01), Yoshinaka
patent: 4766495 (1988-08-01), Kobayashi et al.
patent: 4939572 (1990-07-01), Kosaka et al.
patent: 5355179 (1994-10-01), Ciardi et al.
patent: 5381238 (1995-01-01), Namiki et al.

Affiliated with

Also associated with

Rating

Circle correction in digital low-pass 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 Circle correction in digital low-pass filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circle correction in digital low-pass filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3633613