High definition TV system

Details High definition TV system High definition TV system

1988-08-29

1990-04-10

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358141, H04N 1100, H04N 787

Patent

active

049165259

ABSTRACT:
A high definition television system is disclosed. The transmitter 10 of the invention compresses image data and transmits the compressed data during the vertical flyback interval of a standard NTSC television signal. The receiver 30 of the invention decompresses the compressed image data and adds the expanded lines of data to normal image data in interlineal fashion. In a specific embodiment, an improvement operator 58 is utilized to expand the data and fill in missing pixels. The output of the improvement operator 58 is stored in a memory 56 which is then scanned in a non-interlaced mode for presentation.

REFERENCES:
patent: 4707728 (1987-11-01), Hurst
Jurgen, High-Definition Television Update, IEEE Spectrum, vol. 25, No. 4, pp. 56-62, Apr. 1988.
Brody, The Push for a Sharper Picture, High Technology Business, vol. 8, No. 4, pp. 25-29, Apr. 1988.
Drummond et al., Final Report on ACMP Data Compression, Hughes Aircraft, Support Systems, Dec. 1985 to Oct. 1987.

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