Pattern detect and byte align circuit using CAM

Details Pattern detect and byte align circuit using CAM Pattern detect and byte align circuit using CAM

2008-05-13

2008-05-13

Sough, Hyung S. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

Reexamination Certificate

active

10695976

ABSTRACT:
A method detects a programmable pattern (e.g., Ethernet comma or SONET A1A2 frame) and simultaneously byte aligns to that pattern. The technique uses a content addressable memory (CAM) programmed (e.g., selected by the user) with a particular pattern to enable detecting of a symbol or symbols, or pattern, of bits in an incoming serial stream. The circuitry deserializes the serial stream and byte aligns parallel data based on output from the CAM and a state machine.

REFERENCES:
patent: 5010516 (1991-04-01), Oates
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patent: 6160419 (2000-12-01), Veenstra et al.
patent: 6490650 (2002-12-01), Pereira
patent: 6728492 (2004-04-01), Baroncelli
patent: 6747886 (2004-06-01), Morikawa
patent: 6919736 (2005-07-01), Agrawal et al.
patent: 2002/0159483 (2002-10-01), Clauberg

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