FSK Coding method and apparatus involving multiples and submulti

Details FSK Coding method and apparatus involving multiples and submulti FSK Coding method and apparatus involving multiples and submulti

1983-08-31

1986-02-04

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 88, 34082558, 329126, 332 16R, H03C 300, H03D 300

Patent

active

045690600

ABSTRACT:
A method for coding a data signal for transmission and reception which includes the steps of generating a prefix signal which is a train of pulses at a multiple or submultiple of a selected baseband frequency, then generating a data stream following said prefix with the data stream having one binary state transmitted at said baseband frequency and the other transmitted at another frequency. The data stream is terminated with a suffix having a waveform different from that of the two binary states.

REFERENCES:
patent: 3510777 (1970-05-01), Gordon
patent: 3522539 (1970-08-01), Levine et al.
patent: 3665103 (1972-05-01), Watkins
patent: 3876983 (1975-04-01), Zafiropulo et al.
patent: 3930121 (1975-12-01), Mathiesen
patent: 4039959 (1977-08-01), Pattantyas-Abraham
patent: 4064487 (1977-12-01), Russell et al.
patent: 4317232 (1982-02-01), Pickett et al.
patent: 4320522 (1982-03-01), Hayes

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