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:
Jan. 31, 2017
Filed:
Dec. 26, 2013
Mitsubishi Heavy Industries Mechatronics Systems, Ltd., Hyogo, JP;
Takeshi Nagata, Tokyo, JP;
Yoshifumi Hayakawa, Tokyo, JP;
Hisaji Takeuchi, Tokyo, JP;
Jun Yasui, Tokyo, JP;
Hideaki Murata, Tokyo, JP;
Abstract
A communication system includes an on-board unit adapted to a vehicle-vehicle communication and roadside equipmentperforming a roadside-vehicle communication. In communications in service channels of the vehicle-vehicle communication, one reception-only service channel in which the on-board unit only performs a reception operation is provided for a plurality of the service channels and communications in the reception-only service channel is performed at the same frequency as that of the control channels of the roadside-vehicle communication. When the vehicle-vehicle communication is performed, the on-board unit performs switching to the roadside-vehicle communication in response to detection of reception in the reception-only service channel of a radio signal transmitted from the roadside equipmentin a control channel of the roadside-vehicle communication.