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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Daniel; Patrick
Address:
Strasbourg, FR
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
5249229 Device and method for generating control signals September 28, 1993
A device and to a method for generating control signals is set forth. The device according to the present invention allows the generation, from a single time reference, of the write control (WE) and read control (RE) signals for the information relating to a video line in a storage devic
5224161 Method of scrambling and of unscrambling composite video signals, and device for implementation June 29, 1993
In order to scramble as effectively as possible pay-television transmissions, the transmitter is made to transmit, at one and the same time, access messages and entitlement messages, all of them crypted and corresponding to a control word periodically loaded into a pseudo-random gene
5177485 Method of scrambling PAL, SECAM and NTSC composite video signals and decoder of signals scramble January 5, 1993
The method of the invention consists in shifting (a) the start of the scrambled section of a composite video line of a television image with respect to the start of the useful part of that line.










 
 
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