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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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