Alternate pulse inversion encoding scheme for serial data transm

Details Alternate pulse inversion encoding scheme for serial data transm Alternate pulse inversion encoding scheme for serial data transm

1989-02-24

1990-01-30

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

341 57, 375 22, H04L 2534

Patent

active

048978540

ABSTRACT:
A method is provided for encoding and decoding data to be transmitted over a communication network via transformer coupling. The data is pulse width modulated, and split into separate first and second data streams containing alternate pulses. The first data stream is inverted, and recombined with the second data stream to produce a pulse width modulated bi-polar data signal having an alternating pulse sequence. The data is decoded at the receiver by inverting the pulses of one polarity, and combining them with the pulses of the other polarity to form a pulse width modulated data stream.

REFERENCES:
patent: Re31510 (1984-01-01), Carbrey
patent: 3434059 (1969-03-01), Kesolits
patent: 3517117 (1970-06-01), Woodbury

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