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:
Sep. 18, 2012
Filed:
Jul. 28, 2009
Takeshi Nakajima, Nara, JP;
Harumitsu Miyashita, Mino, JP;
Hiromichi Ishibashi, Ibaraki, JP;
Shigeru Furumiya, Himeji, JP;
Takeshi Nakajima, Nara, JP;
Harumitsu Miyashita, Mino, JP;
Hiromichi Ishibashi, Ibaraki, JP;
Shigeru Furumiya, Himeji, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A most probable path is selected from a number n (where n≧2) of paths of state transitions occurring from a first state S(where k≧3 and j≧2) at a time k−j into a second state Sat a time k. The method includes the steps of detecting predetermined combinations of the first and second states Sand Sdefining the n probable paths in a predetermined period j between the times k−j and k, and evaluating the reliability of a read signal, decoded in the period j, by |Pa−Pb|. Pa and Pb indicate the probabilities of state transition of first and second state transition paths in the period j. The first and second state transition paths are estimated to be the most probable and the second most probable, respectively, among the n probable paths defined by the combinations detected.