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:
Nov. 26, 2002
Filed:
Jan. 20, 1999
Satoshi Imaizumi, Yokosuka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A preliminary selection averaging section averages a small number of correlation values, a candidate code selecting section selects some spreading codes, each having a high average correlation value, as candidates of a real spreading code, an actual selection averaging section performs the averaging the correlation values of the respective candidate codes by use of the number of correlation values necessary for sufficiently restraining noise, and a maximum value detecting section estimates a spreading code, having a maximum correlation value, as a real spreading code. Thereby, time for an initial synchronization can be reduced without decreasing the accuracy of the spreading code estimation.