Remote access device having multiple inductive coil antenna
First Claim
1. A remote access device for use with an automotive vehicle, the remote access device comprising:
- an antenna including a first inductor having a first axis and second inductor having a second axis, wherein the first axis is non-parallel to the second axis such that the first inductor generates a first magnetic field associated with a first plane and the second inductor generates a second magnetic field associated with a second plane different than the first plane;
a battery for use in powering the antenna; and
a housing for the antenna;
wherein, to conserve battery power, the antenna is configured such that the first and second inductors can generate one or both of the first and second magnetic fields independently.
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Accused Products
Abstract
A remote access device which may comprise an antenna having a first inductor with a first axis, a second inductor with a second axis, and a third inductor with a third axis, where the first, second and third axes may be oriented substantially perpendicular to each other, respectively, such that the first inductor generates a first magnetic field associated with a first plane, the second inductor generates a second magnetic field associated with a second plane different than the first plane, and the third inductor generates a third magnetic field associated with a third plane different than the first and second planes. The remote access device preferably includes a single form for the first, second and third inductors, where the first, second and third inductors are each wound on the form.
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Citations
20 Claims
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1. A remote access device for use with an automotive vehicle, the remote access device comprising:
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an antenna including a first inductor having a first axis and second inductor having a second axis, wherein the first axis is non-parallel to the second axis such that the first inductor generates a first magnetic field associated with a first plane and the second inductor generates a second magnetic field associated with a second plane different than the first plane;
a battery for use in powering the antenna; and
a housing for the antenna;
wherein, to conserve battery power, the antenna is configured such that the first and second inductors can generate one or both of the first and second magnetic fields independently. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A remote transmitter for use with an automotive vehicle, the remote transmitter comprising:
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an antenna including a first inductor having a first axis and second inductor having a second axis, wherein the first axis is non-parallel to the second axis such that the first inductor generates a first magnetic field associated with a first plane and the second inductor generates a second magnetic field associated with a second plane different than the first plane;
a batter for use in powering the antenna; and
a housing for the antenna;
wherein, to conserve battery power, the antenna is configured such that the first and second inductors can generate one or both of the first and second magnetic fields independently. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification