Television signal transmission system

Details Television signal transmission system Television signal transmission system

1984-02-09

1987-04-21

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

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358 16, 358142, H04N 1114

Patent

active

046600728

ABSTRACT:
A television signal transmission system is improved to be able to transmit a video signal having a frequency band wider than existing transmission frequency bands while maintaining compatibility with existing television systems. On the sending side, a wide-band luminance signal is frequency-shifted and inserted into a vacant frequency spectrum of a television signal in the existing television systems before transmission.

REFERENCES:
patent: 2686831 (1954-08-01), Dome
patent: 2716151 (1955-08-01), Smith
patent: 4520385 (1985-05-01), Jackson et al.
E. Dubois et al., Three Dimensional Spectrum and Processing of Digital NTSC Color Signals, Digital Video No. 3, pp. 72-84, Jun. 1980.
Fukinuki, Extended Definition TV Fully Compatible with Existing Standards, IEEE Transactions on Communications vol. Com. 32, No. 8, Aug. 1984.
Fukinuki et al., Experiments on Proposed Extended Definition TV with Full NTSC Compatibility, SMPTE Journal Oct. 1984, pp. 923-929.
S. J. Auty et al., PAL Color Picture Improvement Using Simple Analog Comb Filters, SMPTE Journal vol. 87, Oct. 1978, pp. 677-681.

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