Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1994-07-25
1997-04-08
Peng, John K.
Television
Camera, system and detail
Combined image signal generator and general image signal...
382275, H04N 964
Patent
active
056192614
ABSTRACT:
A pixel artifact/blemish filter for use in a CCD video camera which produces a video signal composed of a series of pulses, each representing a pixel, for developing a video image. The filter includes a delay line for receiving the video signal produced by the camera, and for delaying the video signal pulses by a time of approximately one pulse width duration. The filter also includes first and second signal transfer elements for receiving respectively each video signal pulse directly from the camera and each most recently delayed video signal, and for passing either the directly received pulse or the delayed pulse, depending upon the relative magnitude of the two pulses. Since pixel artifact pulses are typically more positive than non-artifacts pulses, the signal transfer elements generally pass the more negative video signal pulses so that the pixel artifact pulses are suppressed when they arrive at the transfer elements.
REFERENCES:
patent: 4193093 (1980-03-01), St. Clair
patent: 4237488 (1980-12-01), Takemura
patent: 4488178 (1984-12-01), Koslov et al.
patent: 5168379 (1992-12-01), Mori et al.
patent: 5392070 (1995-02-01), Endo et al.
patent: 5398060 (1995-03-01), Leacock et al.
OEC Medical Systems, Inc.
Peng John K.
Vu Ngoc-Yen
LandOfFree
Pixel artifact/blemish filter for use in CCD video camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pixel artifact/blemish filter for use in CCD video camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pixel artifact/blemish filter for use in CCD video camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400407