Pulse or digital communications – Repeaters – Testing
Patent
1987-04-09
1988-11-22
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
178 69N, 332 37D, H04B 162
Patent
active
047870940
ABSTRACT:
In a digital signal transmission apparatus for transmitting a digital signal through a transmission system of the type which inherently generates nonlinear distortions, the present invention, by means of digital circuits on the transmitting side, allows approximation to a linear transmission system by adding to the signal to be transmitted, compensating distortions, which are formed according to run-lengths of the digital signal and which will cancel the distortions to be produced in the transmission system. The compensating distortion which is added advances the phase of the input digital signal transitions from one logical level to another, succeeding logical level.
REFERENCES:
patent: 4096526 (1978-06-01), Furuta
patent: 4101934 (1978-07-01), Fukuoka
patent: 4498021 (1985-02-01), Uya
Safourek Benedict V.
Shaw, Jr. Philip M.
Sony Corporation
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