Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1984-11-19
1986-09-09
Griffin, Robert L.
Pulse or digital communications
Spread spectrum
Direct sequence
375112, 375116, 370105, H04L 708, H04J 306
Patent
active
046113363
ABSTRACT:
Frame bit synchronizer for a framing pattern sequence consisting of M Bits distributed in a serial bit stream as single bits at intervals of a fixed number N, of bits, as measured from the start of one framing bit to the start of the next. The system initially operates in a framing mode, searching for frame, until the framing pattern sequence has been determined, upon which event the operation shifts to an in-frame monitoring mode for detecting errors in the framing pattern sequence in the serial bit stream as received.
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Calculagraph Company
Glenny Raymond C.
Griffin Robert L.
Pugh Martha G.
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