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:
Mar. 22, 2016
Filed:
Sep. 14, 2012
Mihai-ionut Stanciu, Bucharest, RO;
Ioan-virgil Dragomir, Bucharest, RO;
Khurram Waheed, Austin, TX (US);
Mihai-Ionut Stanciu, Bucharest, RO;
Ioan-Virgil Dragomir, Bucharest, RO;
Khurram Waheed, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A Viterbi decoding device to decode a signal produced by a convolutional encoder is described. The device may include: an analog-to-digital conversion unit to extract a soft symbol S=(S, S) from the signal, the soft symbol including a first sample value Sand a second sample value S; and a digital processing unit to compute, for each of the N states, a branch metric value of BM_K in dependence on the soft symbol S, K being an index identifying the respective state. The digital processing unit may store the soft symbol S as a complex number S=S+J*Sin a complex number format; and compute a complex branch metric value BM_(K, K')=BM_K+J*BM_K′ in a complex number format on the basis of the soft symbol S, with K different from K′.