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:
Nov. 15, 2011
Filed:
Mar. 30, 2007
Yasuhisa Takizawa, Kyoto, JP;
Peter Davis, Kyoto, JP;
Makoto Kawai, Kyoto, JP;
Hisato Iwai, Kyoto, JP;
Akira Yamaguchi, Kyoto, JP;
Sadao Obana, Kyoto, JP;
Yasuhisa Takizawa, Kyoto, JP;
Peter Davis, Kyoto, JP;
Makoto Kawai, Kyoto, JP;
Hisato Iwai, Kyoto, JP;
Akira Yamaguchi, Kyoto, JP;
Sadao Obana, Kyoto, JP;
Abstract
A radio apparatus forming a radio network system calculates a calculated distance, based on a tentative self-position and tentative positions of a plurality of radio apparatuses existing in the vicinity. The radio apparatus successively and autonomously corrects the tentative self-position so that the calculated distance comes closer to the measured distance, relying more heavily on the calculated distance than the measured distance between itself and each of the plurality of radio apparatuses, and determines the position of itself. Other radio apparatuses also successively correct the tentative self-positions by the same method as the radio apparatus, and determine the positions of themselves.