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.

Date of Patent:
Oct. 26, 2010

Filed:

Jul. 03, 2006
Applicants:

Masaru Higashionji, Osaka, JP;

Kenji Hasegawa, Osaka, JP;

Masaru Odagiri, Hyogo, JP;

Masafumi Shimotashiro, Osaka, JP;

Hiroshi Seki, Nara, JP;

Inventors:

Masaru Higashionji, Osaka, JP;

Kenji Hasegawa, Osaka, JP;

Masaru Odagiri, Hyogo, JP;

Masafumi Shimotashiro, Osaka, JP;

Hiroshi Seki, Nara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A radio-type transmitting device capable of transmitting information other than information in an internal memory is provided. A RFID tag includes a encoding circuit for digitalizing receiving sensitivity of a radio wave sent from an external transmitting/receiving apparatus and then sending the digitalized receiving sensitivity to the external transmitting/receiving apparatus. Thus, the external transmitting/receiving apparatus can obtain a distance between the external transmitting/receiving apparatus and the RFID tag based on received sensitivity information.


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