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:
Aug. 09, 2005
Filed:
Apr. 19, 2001
Ichiro Imaizumi, Tokyo, JP;
Jun Watanabe, Tokyo, JP;
Ichiro Imaizumi, Tokyo, JP;
Jun Watanabe, Tokyo, JP;
Hitachi Kokusai Electric Inc., Tokyo, JP;
Abstract
The present invention provides an RACH receiving apparatus in which the components can be constructed in a small scale. The RACH receiving apparatus performs a demodulation processing so as to divide it into two stages of a first demodulation processing for multiplying reception data of complex-modulated RACH by sign codes subjected to an arithmetic processing with long codes and phase rotations in a code register multiplying unit, and a second demodulation processing for adding multiplication results every chips and multiplying addition results by signature codes in a signature multiplying unit.