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:
Oct. 18, 2011
Filed:
Aug. 13, 2008
Naoharu Yamada, Yokohama, JP;
Yoshinori Isoda, Yokohama, JP;
Naoharu Yamada, Yokohama, JP;
Yoshinori Isoda, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
An area estimation apparatusincludes: a reception level receiving unitconfigured to receive, from a plurality of the radio signal capturing terminalsandvia the network, a radio signal reception level transmitted from the radio signal transmitting terminal, a radio signal transmitting terminal ID for uniquely identifying the radio signal transmitting terminal, and a radio signal capturing terminal ID for uniquely identifying each of the plurality of radio signal capturing terminalsand; with a presence area of the radio signal capturing terminals being known; a reception level storage unitconfigured to store the radio signal reception level, the radio signal transmitting terminal ID and the radio signal capturing terminal ID, which are received from each of the radio signal capturing terminalsand, in association with one another; and a presence area estimating unitconfigured to refer to the reception level storage unit and to estimate the presence area of the radio signal transmitting terminal, by using at least one presence area of at least one radio signal capturing terminalidentified by at least one radio signal capturing terminal ID associated with a predetermined range of at least one radio signal reception level.