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:
May. 16, 2006
Filed:
Aug. 29, 2002
Applicant:
Yusuke Kimata, Tokyo, JP;
Inventor:
Yusuke Kimata, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H04B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
When a cellular phone terminal is powered on, it immediately receives a reference signal (non-modulated reference frequency signal for correcting a crystal oscillation circuit) for correcting the reception frequency of a radio signal transmitted from a base station at all times, and corrects the error of the reception frequency on the basis of the reference signal received. After the error of the reception frequency is corrected, the cellular phone terminal makes normal communications with the base station.