Cryptography – Key management – Having particular key generator
Patent
1993-03-11
1995-09-26
Gregory, Bernarr E.
Cryptography
Key management
Having particular key generator
380 9, 380 46, 331 78, 364717, 359142, 359145, H04L 900
Patent
active
054540402
ABSTRACT:
An audio mixing console incorporates a number of audio modules connected in series, with the first module being serially connected to a digital controller. The digital controller provides digital signals to the audio modules, the digital signals comprising both clock signals and data. Data is sent by the controller to each audio module by way of a data coder which randomizes or scrambles the data stream such that it is not cyclic or repetitive. The coding circuit may be a maximal length pseudo number sequence generator, and this enables decoding to be made by a complementary decoding circuit without links between coder and decoder being required. As the data output appears completely random, it has no fundamental frequency and consequently there is no interference from crosstalk.
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E. Kranakis, Primality and Cryptography, (John Wiley & Sons, 1986), Section 4.1, pp. 98-99.
Gregory Bernarr E.
Soundcraft Electronics Limited
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