Remote keyless entry system
AssigneeHitachi, Ltd.
InventorsTakashi Omata, Noriharu Sato, Shiro Horii, Toshio Nagashima
Life of this patent
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Abstract
An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.
Claims11
A remote keyless entry system for operating an operation apparatus by remote operation of a terminal apparatus, said terminal apparatus comprising:
- a 2-way communication unit that carries out 2-way communication at at least one data rate;
- a 1-way communication unit that carries out 1-way communication at a certain data rate lower than a lowest data rate in said 2-way communication unit;
- and
- a control unit for controlling said 2-way communication unit and said 1-way communication unit to transmit either one of signals from said 2-communication unit and said 1-communication unit, and said operation apparatus comprising a communication device for receiving the signal transmitted from said terminal apparatus and transmitting a response signal to said terminal apparatus when the received signal is 2-communication signal.
Dependencies are inferred from the claim text.