SMART ENTRY SYSTEM AND METHOD
First Claim
1. A smart entry system for a vehicle, comprising:
- at least one actuating device for operation of at least two vehicle functions;
an onboard transmitter for sending request signals to a portable device, said onboard transmitter sending a first request signal within a first search field when said at least one actuating device is subjected to a first actuating operation for initiating a first vehicle function and sending a second request signal within a second search field when said at least one actuating device is subjected to a second actuating operation for initiating a second vehicle function, said first search field varying relative to said second search field; and
an onboard receiver for receiving an identification signal from said portable device.
1 Assignment
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Accused Products
Abstract
A smart entry system and method includes at least one actuating device for operation of at least two vehicle functions, an on-board transmitter for sending request signals to a portable device, and an on-board receiver for receiving an identification signal from the portable device. The on-board transmitter sends a first request signal within a first search field when the at least one actuating device is subjected to a first actuating operation for initiating a first vehicle function. A second request signal is sent within a second search field when the at least one actuating device is subjected to a second actuating operation for initiating a second vehicle function. The first search field varies relative to the second search field.
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Citations
20 Claims
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1. A smart entry system for a vehicle, comprising:
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at least one actuating device for operation of at least two vehicle functions; an onboard transmitter for sending request signals to a portable device, said onboard transmitter sending a first request signal within a first search field when said at least one actuating device is subjected to a first actuating operation for initiating a first vehicle function and sending a second request signal within a second search field when said at least one actuating device is subjected to a second actuating operation for initiating a second vehicle function, said first search field varying relative to said second search field; and an onboard receiver for receiving an identification signal from said portable device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A smart entry method for a vehicle, comprising:
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sending a first request signal within a first search field when a first actuating operation occurs; receiving an identification signal within a first prescribed time after sending said first request signal from a portable device located within said first search field; actuating a first vehicle function upon receipt of said identification signal within said first prescribed time; sending a second request signal within a second, larger search field when a second actuating operation occurs; receiving a second identification signal from said portable device located within said second search field within a second prescribed time after sending said second request signal; and actuating a second vehicle function upon receipt of said second identification signal within said second prescribed time. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A smart entry method for a vehicle, comprising:
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receiving a first actuation signal indicating that a first actuating operation is occurring; transmitting a first request signal within a first search field upon receipt of said first actuation signal; determining whether a portable device is located within said first search field by receiving an identification signal from said portable device located within said first search field within a first prescribed time after sending said first request signal; sending a first vehicle function command signal after receiving said identification signal within said first prescribed time; receiving a second actuation signal indicating that a second actuation operation is occurring; transmitting a second request signal within a second search field upon receipt of said second actuation signal; determining whether said portable device is located within said second search field by receiving another identification signal from said portable device located within said second search field within a second prescribed time after sending said second request signal; and sending a second vehicle function command signal after receiving said another identification signal within said second prescribed time. - View Dependent Claims (19, 20)
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Specification