Picture information transmission system and picture coding and d

Details Picture information transmission system and picture coding and d Picture information transmission system and picture coding and d

1996-10-30

1999-04-13

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

348400, 380 10, H04N 7167, H04N 712

Patent

active

058945180

ABSTRACT:
A picture information transmission system enciphers and transmits picture information after interframe coding so that a receiving apparatus which does not have a cipher decoding device can decode and display the picture at an arbitrary time to allow potential customers to view the image for advertising purposes. The system is constructed so that coding is stopped for a predetermined period of time, and for one of a plurality of regions of each frame within the period, data are successively coded by intraframe coding before the data are outputted.

REFERENCES:
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patent: 5091937 (1992-02-01), Kawasaki
patent: 5153720 (1992-10-01), Kawai
patent: 5199067 (1993-03-01), Leduc et al.
patent: 5258836 (1993-11-01), Murata
patent: 5537147 (1996-07-01), Tahara
NTSC Color Television Standards; D.G. Fink; McGraw-Hill Book Co., Inc.; NY, 1955.

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