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.:
Date of Patent:
Jan. 11, 2000
Filed:
Oct. 29, 1998
Charles C Wang, Arcadia, CA (US);
The Aerospace Corporation, El Segundo, CA (US);
Abstract
The turbo encoding process repeats the bits of the systematic data and appends the flushing tail bits prior to interleaving and encoding by the second constituent turbo encoder for providing an interleaved repetitive second encoded output for turbo decoding as a repetitive turbo code method to reduce the error floor of turbo coding. Preferably, the repetitive systematic string is also encoded by the first encoder and is transmitted providing repetitive transmitted first encoded sequence and a repetitive transmitted systematic sequence from the turbo encoder. The turbo decoder operates on three repetitive sequences and perform bit deletion among r repetitive systematic bits after conventional turbo decoding. The repetitive sequences may also be subjected to encoder puncturing and decoder bit insertion as an alternative enhancement.