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:
May. 13, 2014
Filed:
Jan. 29, 2010
Kumar Balachandran, Cary, NC (US);
Tsao-tsen Chen, Älvsjö, SE;
Havish Koorapaty, Saratoga, CA (US);
Tripura Ramesh, Raleigh, NC (US);
Kumar Balachandran, Cary, NC (US);
Tsao-Tsen Chen, Älvsjö, SE;
Havish Koorapaty, Saratoga, CA (US);
Rajaram Ramesh, Raleigh, NC (US);
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A convolutional encoder () comprises an expurgation unit () and a first component convolutional encoder section (). A convolutional turbo encoder () comprises an expurgation unit (); a first component convolutional encoder section (); a second component convolutional encoder section (); and an interleaver (). For both the convolutional encoder () and the expurgating convolutional turbo encoder () the expurgation unit () inserts predetermined values at selected bit positions of an input bit sequence and thereby provide an expurgated input bit sequence. A lower rate convolutional code is obtained from a higher rate code via expurgation.