Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2005-06-13
2008-11-11
Vo, Don N (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S233000, C375S350000
Reexamination Certificate
active
07450635
ABSTRACT:
The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a second equalizer processing branch. The first equalizer processing branch is operable to be trained based upon known training sequences and equalize the received RF burst. This results in soft samples or decisions which in turn may be converted to data bits. The soft samples are processed with a de-interleaver and channel decoder, where the combination is operable to produce a decoded frame of data bits from the soft samples. A re-encoder may re-encode the decoded frame to produce re-encoded or at least partially re-encoded data bits. An interleaver then processes the at least partially re-encoded data bits to produce and at least partially re-encoded burst. The second equalizer processing branch uses the at least partially re-encoded data bits to train linear equalizer(s) within the second equalizer processing branch. A buffer may initially store the received RF burst(s), which are retrieved and equalized by the second equalizer processing branch once the linear equalizer(s) are trained. This results in alternate soft samples or decisions which in turn may be converted to alternate data bits. The alternate soft samples are processed with the de-interleaver and channel decoder, where the combination is operable to produce an alternate decoded frame of data bits from the alternate soft samples. This allows interfering signals to be cancelled and more accurate processing of the received RF bursts to occur.
REFERENCES:
patent: 5274670 (1993-12-01), Serizawa et al.
patent: 6690739 (2004-02-01), Mui
patent: 6782046 (2004-08-01), Ling et al.
patent: 2002/0123318 (2002-09-01), Lagarrigue
patent: 2003/0112861 (2003-06-01), Erdogan et al.
patent: 2003/0123583 (2003-07-01), Yellin et al.
patent: 0 959 580 (1999-11-01), None
patent: 1 065 851 (2001-01-01), None
Jeong J. H. et al; Turbo Equalizations for Broadband Transmission on Category 6 Cable;Global Telecommunications Conference 2004, Globecom 2004.
Chen Yue
Heiman Arie
Molev-Shteiman Arkady
Sollenberger Nelson R.
Yang Baoguo
Broadcom Corporation
Garlick Bruce E.
Garlick & Harrison & Markison
Vo Don N
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