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:
Apr. 21, 2009
Filed:
Feb. 09, 2005
David Berman, San Jose, CA (US);
Evangelos S. Eleftherion, Zurich, CH;
Robert Allen Hutchins, Tucson, AZ (US);
Glen Alan Jaquette, Tucson, AZ (US);
Constantin M. Melas, Los Gatos, CA (US);
Sedat Oelcer, Kilchberg, CH;
David Berman, San Jose, CA (US);
Evangelos S. Eleftherion, Zurich, CH;
Robert Allen Hutchins, Tucson, AZ (US);
Glen Alan Jaquette, Tucson, AZ (US);
Constantin M. Melas, Los Gatos, CA (US);
Sedat Oelcer, Kilchberg, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, system, and method are disclosed for asymmetric maximum likelihood detection. An initialization module initializes a plurality of branch metrics and a plurality of path memories. A coefficient module calculates a plurality of coefficients. A computation module calculates a first and second specified likelihood function. A selection module calculates a third specified branch metric as the maximum of the first and second specified likelihood functions. A path metrics module calculates a third specified path memory from a first and second specified path memory. A results module identifies a data output value from one or more path memories.