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:
Jul. 16, 2013
Filed:
Jan. 30, 2008
Takafumi Nagano, Tokyo, JP;
Takashi Iwamoto, Tokyo, JP;
Takafumi Nagano, Tokyo, JP;
Takashi Iwamoto, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A code converting apparatus is designed to estimate the incoming time and the like of a signal modulated by a spreading sequence composed of m elements in a set A having n kinds of symbols as elements accurately. A symbol sequence memory sectionstores a converted sequence of symbols obtained by concatenating consecutive 2d symbols at the center of each sequence pattern pcomposed of 4d elements in the set A. The converted sequence of symbols is structured so that d symbol immediately preceding the 2d symbols and d symbol immediately following the 2d symbols are identical to d symbol immediately preceding corresponding 2d symbols and d symbol immediately following the corresponding 2d symbols of a corresponding sequence pattern. A symbol sequence specifying sectionspecifies a matching sequence pattern for every consecutive 2d symbols in a symbol sequence obtained by assigning a symbol to the signal in a coding cycle of the spreading sequence. A signal generating sectionadds a portion to which the 2d symbols are assigned of the signal. A signal converting sectionconcatenates each pattern signal added for each sequence pattern, in an order equivalent to an order of the 2d symbols at the center of each sequence pattern concatenated in the converted sequence of symbols.