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:
Dec. 18, 2012
Filed:
Aug. 29, 2008
Applicant:
Tadashi Koyama, Kanagawa, JP;
Inventor:
Tadashi Koyama, Kanagawa, JP;
Assignee:
KYOCERA Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A communication apparatus and a method used by the communication apparatus to perform magnetic-field communication with an external apparatus is provided. The communication apparatus determines the communication distance between the communication apparatus and the external apparatus based on the voltage level of a radio signal, a distance measuring device, or other means. The communication distance is compared to a predetermined distance and the communication apparatus dynamically adjusts its resonance frequency for improved magnetic-field communication with the external apparatus.