Communicator and vehicle controller
First Claim
Patent Images
1. A communicator comprising:
- a main electric field generation unit including a main antenna for generating a main electric field; and
a closed loop antenna including a basal end coil, inductively coupled to the main antenna, and a distal end coil, for generating an auxiliary electric field based on the inductive coupling.
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Accused Products
Abstract
An inexpensive communicator that forms an optimal communication electric field. A vehicle interior transmitter circuit includes a main transmitter circuit having a ferrite antenna for generating a main electric field. A closed loop antenna includes a basal end coil, inductively coupled to the main antenna, and a distal end coil, for generating an auxiliary electric field based on the inductive coupling.
39 Citations
8 Claims
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1. A communicator comprising:
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a main electric field generation unit including a main antenna for generating a main electric field; and
a closed loop antenna including a basal end coil, inductively coupled to the main antenna, and a distal end coil, for generating an auxiliary electric field based on the inductive coupling. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A controller for use in a vehicle with a portable device, the vehicle including a controlled subject, and the portable device transmitting a reply signal in response to a request signal, the controller comprising:
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a communication unit for communicating with the portable device; and
a control unit, connected to the controlled subject and the communication unit, for controlling the controlled subject based on communication between the portable device and the communication unit, the communication unit including;
a transmitter unit with a main electric field generation unit having a main antenna for generating a main electric field, and a closed loop antenna with a basal end coil, inductively coupled to the main antenna, and a distal end coil, for generating an auxiliary electric field based on the inductive coupling, the transmitter unit transmitting the request signal to the portable device using the main electric field and the auxiliary electric field; and
a receiver unit for receiving the reply signal from the portable device. - View Dependent Claims (8)
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Specification