Retiming decoder/encoder

Details Retiming decoder/encoder Retiming decoder/encoder

1990-07-18

1992-06-30

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 87, 341 70, H04L 2710

Patent

active

051270234

ABSTRACT:
An apparatus is disclosed for retiming and decoding Manchester-encoded data o produce a locally-formatted waveform, and for encoding a locally-formatted waveform in a Manchester-encoded format. The apparatus includes an all-digital retimer which retimes the Manchester-encoded waveform while monitoring the waveform to detect the presence of a data frame therein. The retimer detects the data frame by identifying a synch bit which initiates a frame and detecting when a maximum intra-frame signaling distance has been exceeded. A decoder receives the retimed waveform, together with an envelope signal defining the data frame and decodes the retimed waveform into a locally-coded format. The encoder receives a locally-formatted signal together with a signal defining a data frame and encodes the locally-formatted signal into a framed Manchester-encoded signal.

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