Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2002-09-04
2010-06-01
Mattis, Jason E (Department: 2461)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S324000, C370S350000, C370S503000, C375S368000, C375S364000
Reexamination Certificate
active
07729386
ABSTRACT:
Systems and methods are disclosed for detecting framing data in a telecommunications signal. In one embodiment, a frame synchronizer circuit is provided that includes an interface for receiving bits of a telecommunications signal and storage for storing a framing state for the bit positions in the frame, the framing state for a given bit position indicating whether that bit position is a potential holder of the frame synchronization pattern. The frame synchronizer circuit also contains a state update function that determines the current-state for each bit position based on the bit position's previous state, and the value of the most recently received bit in that bit position. The encoding scheme makes use of shorter bit length symbols to represent statistically more frequently occurring states. In one embodiment, a single code word is used to record the state of a sequence of consecutively occurring bit positions that share the same state.
REFERENCES:
patent: 4727558 (1988-02-01), Hall
patent: 5049880 (1991-09-01), Stevens
patent: 5280532 (1994-01-01), Shenoi et al.
patent: 5426756 (1995-06-01), Shyi et al.
patent: 5615237 (1997-03-01), Chang et al.
patent: 5790599 (1998-08-01), Wright et al.
patent: 6246736 (2001-06-01), Coady
patent: 6546241 (2003-04-01), Iyengar et al.
patent: 6859460 (2005-02-01), Chen
patent: 2003/0128719 (2003-07-01), Doyle
Butz Steve J.
Furuness Sean M.
Weizeorick Lawrence D.
Hailu Kibrom T
Hamilton Brook Smith & Reynolds P.C.
Mattis Jason E
Tellabs Operations Inc.
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