Vehicle tag reader
First Claim
1. A transponder for sensing a condition relating to a tire, comprising:
- a tire condition sensor adapted to sense a condition relating to the tire; and
a control system communicatively connected to the tire condition sensor and comprising at least two operating modes,wherein the control system is configured to transmit information from the tire condition sensor to a remote location in a first operating mode when the transponder has entered an RF field that has an amplitude modulation component,wherein the control system is configured to transmit information from the tire condition sensor to the remote location in a second operating mode when the transponder has entered an RF field without an amplitude modulation component, andwherein the manner of transmission in the second operating mode is different than the manner of transmission in the first operating mode.
1 Assignment
0 Petitions
Accused Products
Abstract
A tire sensor that communicates to a remote interrogator in one of two modes depending on the nature of the interrogation. The interrogator may be distributed throughout a vehicle if needed for design options. Further, the interrogator only interrogates the transponder when the interrogator has reason to believe that the transponder is in range of the interrogator. The interrogator and transponder may be configured to operate in different modes for communication during operation of the tire on a vehicle and during non-operation. The transponder may communicate tire condition information to the interrogator concerning environmental or other information sensed about the tire.
69 Citations
20 Claims
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1. A transponder for sensing a condition relating to a tire, comprising:
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a tire condition sensor adapted to sense a condition relating to the tire; and a control system communicatively connected to the tire condition sensor and comprising at least two operating modes, wherein the control system is configured to transmit information from the tire condition sensor to a remote location in a first operating mode when the transponder has entered an RF field that has an amplitude modulation component, wherein the control system is configured to transmit information from the tire condition sensor to the remote location in a second operating mode when the transponder has entered an RF field without an amplitude modulation component, and wherein the manner of transmission in the second operating mode is different than the manner of transmission in the first operating mode. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of operating a transponder, comprising:
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sensing whether the transponder is present in a first type of RF field or a second type of RF field, wherein the first type of RF field has an amplitude modulation component and the second type of RF field does not have an amplitude modulation component; operating the transponder to transmit information in a first operating mode when the transponder is present in the first type of RF field; and operating the transponder to transmit information in a second operating mode when the transponder is present in the second type of RF field, wherein the manner in which the information is transmitted by the transponder in the second operating mode is different than the manner in which the information is transmitted by the transponder in the first operating mode. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A transponder for sensing a condition relating to a tire, comprising:
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a tire condition sensor adapted to sense a condition relating to the tire; and a control system communicatively connected to the tire condition sensor and comprising at least two operating modes, wherein the control system is configured to transmit information from the tire condition sensor to a remote location in a first operating mode when the transponder is interrogated with an RF field in which a known byte is present, wherein the control system is configured to transmit information from the tire condition sensor to the remote location in a second operating mode when the transponder in interrogated with an RF field in which a known byte is not present, wherein the manner of transmission in the second operating mode is different than the manner of transmission in the first operating mode, and wherein one of the first or second operating modes comprises a contention access protocol mode in which the control system is configured to transmit information to the remote location when a transmission is authorized. - View Dependent Claims (17)
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18. A transponder for sensing a condition relating to a tire, comprising;
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a tire condition sensor adapted to sense a condition relating to the tire; and a control system communicatively connected to the tire condition sensor and comprising at least two operating modes, wherein the control system is configured to transmit information from the tire condition sensor to a remote location in a first operating mode when an RF field modulated by a continuous clock signal is present, wherein the control system is configured to transmit information from the tire condition sensor to the remote location in a second operating mode when an RF field modulated by a continuous clock signal is not present, wherein the manner of transmission in the second operating mode is different than the manner of transmission in the first operating mode, and wherein one of the first or second operating modes comprises continuously transmitting information to the remote location with as much speed and bandwidth as is available. - View Dependent Claims (19)
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20. A transponder for sensing a condition relating to a tire, comprising:
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a tire condition sensor adapted to sense a condition relating to the tire; and a control system communicatively connected to the tire condition sensor and comprising at least two operating modes, wherein the control system is configured to transmit information from the tire condition sensor to a remote location in a first operating mode when a continuous RF field is present, wherein the control system is configured to transmit information from the tire condition sensor to the remote location in a second operating mode when a continuous RF field is not present, wherein the manner of transmission in the second operating mode is different than the manner of transmission in the first operating mode, and wherein one of the first or second operating modes comprises continuously transmitting information to the remote location with as much speed and bandwidth as is available.
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Specification