Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-08-19
1993-07-20
Kostak, Victor R.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358180, H04N 701
Patent
active
052298531
ABSTRACT:
An apparatus for converting a video input signal representing an image from a first format to a prescribed second format. The apparatus comprises the following elements: a sync separator (30) for extracting a synchronization (sync) signal from the video input signal; a section (32, 34, 36, 40) for generating a sample clock signal on the basis of the sync signal and the said prescribed format; a sampling section including A/D convertors (18a, 18b, 18c) for sampling the video input signal in accordance with the sample clock signal to obtain a prescribed number of samples per line of the image; a section (20a, 20b, 20c, 22) for combining the samples of at least two different lines to obtain a prescribed number of new lines each of which comprises the said prescribed number of samples per line; and a filtering section (17a, 17b, 17c) for filtering the video input signal so as to effectively horizontally average each line of the image.
REFERENCES:
patent: 4204227 (1980-05-01), Gurley
patent: 4302776 (1981-11-01), Taylor et al.
patent: 4598314 (1986-07-01), Reimers
patent: 4658284 (1987-04-01), Kawamura et al.
patent: 4658293 (1987-04-01), Arai et al.
patent: 4670772 (1987-06-01), Bolger
patent: 4713685 (1987-12-01), Nishimura et al.
patent: 4729012 (1988-03-01), Jose et al.
patent: 4766494 (1988-08-01), Doyle
patent: 4774581 (1988-09-01), Shiratsuchi
patent: 4924315 (1990-05-01), Yamashita
patent: 4953025 (1990-08-01), Saitoh et al.
patent: 4962427 (1990-10-01), Lunn et al.
patent: 5068731 (1991-11-01), Takeuchi
patent: 5070395 (1991-12-01), Kitaura et al.
patent: 5087971 (1992-02-01), Sakata et al.
patent: 5103308 (1992-04-01), Asano
patent: 5142366 (1992-08-01), Brown et al.
Hewlett--Packard Company
Kelley Guy J.
Kostak Victor R.
LandOfFree
System for converting a video signal from a first format to a se does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for converting a video signal from a first format to a se, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for converting a video signal from a first format to a se will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1764783