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US 8,138,885 B2Granted
Vehicle antenna device, vehicle including the vehicle antenna device, and vehicle security system including the vehicle antenna device
AssigneeHonda Motor Co., Ltd.
InventorsKentaro Yoshimura, Naoto Yamamoto, Hideaki Arai
Life of this patent
Estimating the term…
Abstract
A vehicle antenna device includes a first antenna and a second antenna. The first antenna surrounds an ignition key cylinder having a key insertion hole and is configured to receive a first signal transmitted from a first transmitter in a key insertion state where a key is inserted into the key insertion hole. The second antenna is configured to receive a second signal transmitted from a second transmitter. The first antenna is positioned between the first transmitter and the second antenna in the key insertion state.
Claims12
A vehicle antenna device comprising:
- a first antenna which surrounds an ignition key cylinder having a key insertion hole and which is configured to receive a first signal transmitted from a first transmitter in a key insertion state where a key is inserted into the key insertion hole;
- and
- a second antenna configured to receive a second signal transmitted from a second transmitter that exists outside a vehicle, the first antenna being positioned between the first transmitter and the second antenna in the key insertion state,
- wherein the second antenna comprises a vertical part and a horizontal part substantially perpendicular to the vertical part, the vertical part projects substantially perpendicularly from the horizontal part,
- wherein the first antenna and the vertical part of the second antenna are integrated as one part having an insulator which separates the first antenna and the vertical part, and
- wherein the first antenna and the vertical part of the second antenna have a cylindrical shape.
3 more elements
A vehicle comprising:
- an ignition key cylinder having a key insertion hole;
- a first antenna surrounding the ignition key cylinder and configured to receive a first signal transmitted from a first transmitter in a key insertion state where a key is inserted into the key insertion hole;
- and
- a second antenna configured to receive a second signal transmitted from a second transmitter that exists outside a vehicle, the first antenna being positioned between the first transmitter and the second antenna in the key insertion state,
- wherein the second antenna comprises a vertical part and a horizontal part substantially perpendicular to the vertical part, the vertical part projects substantially perpendicularly from the horizontal part,
- wherein the first antenna and the vertical part of the second antenna are integrated as one part having an insulator which separates the first antenna and the vertical part, and
- wherein the first antenna and the vertical part of the second antenna have a cylindrical shape.
4 more elements
A vehicle security system comprising:
- an ignition key cylinder having a key insertion hole;
- a first transmitter configured to transmit a first signal;
- a second transmitter configured to transmit a second signal;
- a first antenna surrounding the ignition key cylinder and configured to receive the first signal transmitted from the first transmitter in a key insertion state where a key is inserted into the key insertion hole;
- and
- a second antenna configured to receive the second signal transmitted from the second transmitter that exists outside a vehicle, the first antenna being positioned between the first transmitter and the second antenna in the key insertion state,
- wherein the second antenna comprises a vertical part and a horizontal part substantially perpendicular to the vertical part, the vertical part projects substantially perpendicularly from the horizontal part,
- wherein the first antenna and the vertical part of the second antenna are integrated as one part having an insulator which separates the first antenna and the vertical part, and
- wherein the first antenna and the vertical part of the second antenna have a cylindrical shape.
6 more elements
Dependencies are inferred from the claim text.