Remote control apparatus
First Claim
1. A remote control apparatus comprising:
- a transmitter for transmitting a transmission request signal;
a receiver for receiving a reply signal transmitted in response to the transmission request signal;
operation control means for controlling an operation state of an equipment depending on whether said receiver receives the reply signal;
a portable unit for receiving the transmission request signal and for transmitting the reply signal to the receiver in response to receiving the transmission request signal from the transmitter;
an object sensor for sensing an approach of an object;
transmission power control means connected to said transmitter, said object sensor and said receiver for reducing the transmission power of the transmission request signal from said transmitter when said object sensor senses no object and said receiver receives the reply signal from said portable unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A remote control apparatus comprises a vehicle-mounted unit including a transmitter (26, 28, 23) for transmitting an ID request, a receiver (32, 33) for receiving a reply ID transmitted in response to the ID request, controller (31) for controlling the operation state of equipment (40, 60) depending on whether the receiver (32, 33) receives the ID, as well as a portable unit (10) for transmitting a reply ID in response to the ID request. When a hand sensor (1) provided in a door handle of a vehicle senses no hand and the receiver (32, 33) receives an ID, the controller (31) decreases the transmission power of the ID request. The hand sensor (1) comprises a slot antenna having an outside door handle, the surface of which is formed of a conductive material, a slit formed in the conductive material, and feeding points. The antenna is used for transmission of the ID request.
41 Citations
10 Claims
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1. A remote control apparatus comprising:
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a transmitter for transmitting a transmission request signal;
a receiver for receiving a reply signal transmitted in response to the transmission request signal;
operation control means for controlling an operation state of an equipment depending on whether said receiver receives the reply signal;
a portable unit for receiving the transmission request signal and for transmitting the reply signal to the receiver in response to receiving the transmission request signal from the transmitter;
an object sensor for sensing an approach of an object;
transmission power control means connected to said transmitter, said object sensor and said receiver for reducing the transmission power of the transmission request signal from said transmitter when said object sensor senses no object and said receiver receives the reply signal from said portable unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification