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.:

US 8035561 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 11, 2011

Filed:

May. 29, 2009
Applicants:

Tooru Yamazaki, Chita, JP;

Yuji Sugimoto, Kariya, JP;

Inventors:

Tooru Yamazaki, Chita, JP;

Yuji Sugimoto, Kariya, JP;

Assignees:

DENSO CORPORATION, Kariya, JP;

Nippon Soken, Inc., Nishio, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 21/24 (2006.01); H01Q 3/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication apparatus communicating other apparatuses includes: a switch for switching between a vertical polarized antenna and a horizontal polarized antenna; a communication device for transmitting and receiving the electric wave via one of the antennas, which is selected by the switch; a monitor for monitoring a relative distance between the apparatus and other apparatuses; and a controller for controlling the switch such that the switch selects the vertical polarized antenna when the relative distance is equal to or larger than a distance threshold, and the switch selects the horizontal polarized antenna when the relative distance is smaller than the distance threshold. The distance threshold is larger than a distance between the apparatus and a dip point.


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