Digital decoding of biphase-mark encoded serial digital signals

Details Digital decoding of biphase-mark encoded serial digital signals Digital decoding of biphase-mark encoded serial digital signals

1994-01-14

1995-11-07

Coles, Sr., Edward L.

Pulse or digital communications

Receivers

Angle modulation

341 70, 331 1A, H03D 322, H03M 506, H03L 700

Patent

active

054652685

ABSTRACT:
A digital decoder for a biphase-mark encoded serial digital signal detects edges in the encoded serial digital signal by sampling with a sample clock to produce a blivet signal. The blivet signal is filtered by a one-bit digital lowpass filter to recover a decoded clock signal and to generate a transition window signal. The blivet and window signals are used to detect whether there is a transition within each bit interval defined by the decoded clock signal. A decoded serial digital signal has a logical one for each bit interval in which a transition occurs, and a logical zero otherwise.

REFERENCES:
patent: 4112383 (1978-09-01), Burgert
patent: 5103467 (1992-04-01), Bedlek
patent: 5111160 (1992-05-01), Hershberger
patent: 5164966 (1992-11-01), Hershberger
patent: 5208678 (1993-05-01), Nakagawa
patent: 5245667 (1993-09-01), Lew
patent: 5329556 (1994-07-01), Meitner

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