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:
Apr. 07, 2009
Filed:
Aug. 29, 2005
Applicant:
Takeshi Ishihara, Tokyo, JP;
Inventor:
Takeshi Ishihara, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In carrying out a cell search, the received-signal level (RSSI) at each frequency is measured in the first place, by implementing asynchronous detection in steps of a predetermined frequency-step width over a predetermined search frequency range (from Fini to Fend), After measuring the RSSI, a cell search is carried out by implementing synchronous-detection processing over the frequency range that has a center frequency where the received-signal level is higher than a threshold value and that has the frequency-step width, it is an object of the present invention to obtain a communication terminal unit that can reduce a cell-search time.