Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1986-08-21
1988-08-16
McElheny, Jr., Donald
Facsimile and static presentation processing
Facsimile
Recording apparatus
360 31, 360 68, H04N 980, G11B 2736
Patent
active
047648163
ABSTRACT:
A full-frame memory for television signals is filled while the tape transport speed is reduced to a small fraction of its normal speed while a selected of the head-wheel of a recorder-reproducer first records a segment of a frame recorded in one oblique track, then is switched to reproduction that reads the track just recorded. In the next frame a second segment is similarly recorded, reproduced and stored for the second frame, and so on. After a complete set of segments are put in memory a complete composite picture can be reproduced therefrom and of course the content of the memory can be displayed in the intervals between the recording of segments. A pixel error detector is used both for displaying errors by setting all recognizably faulty pixels to picture black and also counting the number of recognizably defective pixels per segment. While this evaluation procedure is being run, the recording current, the pre-emphasis and the de-emphasis adjustments can be varied so that they can ultimately be set at the settings which produce the lowest error rate in the reproduced picture.
REFERENCES:
patent: 4295168 (1981-10-01), Muller
patent: 4504870 (1985-03-01), Kitamura et al.
McElheny Jr. Donald
Robert & Bosch GmbH
LandOfFree
Method for optimizing a magnetic tape device for storing digital does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for optimizing a magnetic tape device for storing digital, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for optimizing a magnetic tape device for storing digital will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-603619