Video system for displaying lower resolution video signals on hi

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

358 22, 340728, H04N 701

Patent

active

048665207

ABSTRACT:
Lower resolution video signals (10) having alternating odd fields (12) and even fields (14) are stored in an odd line memory 20A and an even line 20B, respectively. An interpolator 22 interpolates adjacent odd and even lines. A selector 24 cyclically selects odd, even, and interpolated lines in a pre-selected pattern, such as one of the patterns illustrated in FIGS. 1, 7, 8A-F, and 9A-F. By selecting even, odd, and interpolated lines, the number of lines per picture is increased to produce a higher resolution video signal (30).

REFERENCES:
patent: 4322750 (1982-03-01), Lord et al.
patent: 4402012 (1983-08-01), Knight
patent: 4610026 (1986-09-01), Tabata et al.
patent: 4713685 (1987-12-01), Nishimura et al.
patent: 4746981 (1988-05-01), Nadan
patent: 4768092 (1988-08-01), Ishikawa
European Search Report dated Jul. 7, 1988 (Appln. No. 88101882.4).
M. C. W. van Bull and L. J. van de Polder, "Standards Conversion of a Videophone Signal with 313 Lines into a TV Signal with 625 Lines", Philips Res. Repts 29, 413-428, Sep. 1974.
"Trend of Modern Digital Television Receiver", Journal of Electronic Communications, vol. 68, No. 3 (English translation) undated.
"Digital Processing Technology of Video Signals and a Case Study", Nippon Kogyo Gijutu Center, 1986, pp. 56-58 (English translation).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Video system for displaying lower resolution video signals on hi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video system for displaying lower resolution video signals on hi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video system for displaying lower resolution video signals on hi will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-921036

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.