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. 03, 2013
Filed:
Nov. 09, 2009
Akio Tanaka, Tokyo, JP;
Hiromu Ishikawa, Tokyo, JP;
Akio Tanaka, Tokyo, JP;
Hiromu Ishikawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
To improve operability by a user in a case of performing data transfer wirelessly in a near area, a near-field wireless communication circuitincluded in a terminalA is able to switch between a normal mode to perform OFDM and a near mode with a relatively short communicable distance as compared with that in the first communication mode and to perform spread spectrum. A controllerexecutes preliminary processing needed for initiating data transfer in the near mode with a terminalB serving as a communication destination between the terminalsA andB by using the near-field wireless communication circuitwhich is set to the normal mode. Further, the controllerdetermines availability of the data transfer in the near mode with the terminalB by using a measured value of communication quality which has a correlation with a communication distance to the terminalB as a measure of the determination. Furthermore, when it is determined that the data transfer in the near mode is available, the controllerinitiates the data transfer with the terminalB by using the near-field wireless communication circuitwhich is set to the near mode, based on a result of the preliminary processing executed in the normal mode in advance.