The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7085984 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 01, 2006

Filed:

Dec. 28, 2001
Applicants:

Jae Doeg Lim, Allen, TX (US);

Adnan Kavak, Izmit, TR;

Inventors:

Jae Doeg Lim, Allen, TX (US);

Adnan Kavak, Izmit, TR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); H03M 13/03 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method is disclosed for providing an improved channel encoder in a digital data communication system. In one advantageous embodiment the invention comprises a channel encoder that comprises a first Turbo encoder, an interleaver, and a second Turbo encoder. Data from a source encoder is Turbo encoded in the first Turbo encoder, then interleaved, and then Turbo encoded in the second Turbo encoder. The data is then punctured and repeated in a symbol puncture and repetition unit. In an alternate advantageous embodiment of the invention, the first and second Turbo encoders are coupled in parallel. The data provided to one of the Turbo encoders is interleaved. The outputs of the first and second Turbo encoders are multiplexed and the result is provided to the symbol puncture and repetition unit. The invention provides low packet error rates when higher RF modulation is used.


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