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. 04, 2005
Filed:
Oct. 13, 1999
Eriko Takeda, Tokyo, JP;
Kiichi Yamashita, Kagoshima, JP;
Kenji Sekine, Hinode, JP;
Ken Takei, Kawasaki, JP;
Eriko Takeda, Tokyo, JP;
Kiichi Yamashita, Kagoshima, JP;
Kenji Sekine, Hinode, JP;
Ken Takei, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention provides a communication terminal that enables precise communications with optimum receive sensitivity at any time regardless of any change in peripheral environments of an antenna thereof. The communication terminal including means for transmitting and receiving radio waves is provided with a training mechanism for enabling the communication terminal itself to conduct training mode for tuning receive sensitivity, and switching mechanism for switching between normal communication mode and the training mode. The communication terminal is particularly useful as a communication terminal for automobile in the Intelligent Transport System or the like.