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. 12, 2009
Filed:
Sep. 27, 2004
Kazuyuki Yamamoto, Kanagawa, JP;
Shin Iima, Tokyo, JP;
Kazuyuki Yamamoto, Kanagawa, JP;
Shin Iima, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A reception intensity measuring unit measures a reception intensity of a radio wave received by a radio reception unit under control of a connection control unit. When it is judged that the reception intensity of the received radio wave is larger than a reception intensity set in advance, the reception intensity measuring unit controls a transmission intensity changing unit to lower a transmission intensity of a radio wave to be transmitted from a radio transmission unit. When the transmission intensity of the radio wave to be transmitted from the radio transmission unit is lowered by the transmission intensity changing unit, an authentication processing unit executes authentication processing with another apparatus via the radio reception unit and the radio transmission unit and controls an authentication data registering unit to register authentication data, which is obtained as a result of the authentication processing, in a memory.