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. 16, 2007
Filed:
Jan. 20, 2003
Esko Nieminen, Oulu, FI;
Esko Nieminen, Oulu, FI;
Nokia Corporation, Espoo, FI;
Abstract
The invention relates to a method and an apparatus for producing path metrics in a trellis. The trellis phase nodes that have the common nodes of the preceding trellis phase through the allowed state transitions determined by the code are defined as basic group nodes. Then path metrics corresponding to the code are produced, and in each basic group winner information on the winner path and path metric information on the rejected paths is stored in a memory in respect of only one node. Finally the signal is re-processed in the opposite direction trellis phase by trellis phase starting from the path metrics produced last by producing the path metrics of the preceding trellis phase basic group by basic group using the path metrics of the one node of the basic group of the present trellis phase and the winner information and path metric information stored in the memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile