Invention Grant
- Patent Title: Communication apparatus for vehicle
- Patent Title (中): 车辆通信装置
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Application No.: US11249462Application Date: 2005-10-14
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Publication No.: US09126564B2Publication Date: 2015-09-08
- Inventor: Masayoshi Ono , Masato Sumida , Tetsuya Ooba , Masahiko Katayama , Naohisa Uehara
- Applicant: Masayoshi Ono , Masato Sumida , Tetsuya Ooba , Masahiko Katayama , Naohisa Uehara
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI DENKI KABUSHIKI KAISHA
- Current Assignee: MITSUBISHI DENKI KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Agent Richard C. Turner
- Priority: JP2005-199827 20050807
- Main IPC: B60R25/00
- IPC: B60R25/00 ; B60R25/24
Abstract:
A communication apparatus for a vehicle achieves reduction in size and cost of a portable unit by making unnecessary an oscillation circuit and a battery in the portable unit. The apparatus is provided with an on-board unit installed on the vehicle and a portable unit carried by a user of the vehicle. A response signal is sent from the portable unit to the on-board unit in response to a signal transmitted from the on-board unit. The portable unit includes a power generation circuit for supplying electric power to circuits in the portable unit by a power generation radio wave sent from the on-board unit, and the on-board unit sends a communication signal after sending the power generation radio wave.
Public/Granted literature
- US20070030119A1 Communication apparatus for vehicle Public/Granted day:2007-02-08
Information query
