Patent US6489888B1 successfully refreshed from Google Patents.
US6489888B1
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US
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Using signal strength to identify tire position
Assignee: Johnson Controls Technology Co
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Filing: 2001-06-29
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Granted: 2002-12-03
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Expires: 2021-06-29
Abstract
Abstract A system for identifying the position of a tire on a vehicle based on wireless messages received from the tire includes a receiver circuit, a signal strength circuit, a memory, and a processing circuit. The receiver circuit is configured to receive the wireless messages. The signal strength circuit is configured to determine the signal strengths of the wireless messages. The memory is configured to store a predetermined frequency distribution. The processing circuit is configured to provide a frequency distribution of the wireless messages based on the signal strengths and to compare the frequency distribution to the predetermined frequency distribution to determine the position of the tire on the vehicle.
Inventors
- 👤 Brian S. Honeck
- 👤 Thomas R. Olson
- 👤 Emil Ureel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:07
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408; B60C23/0415; B60C23/0416
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
97 words
A system for identifying the position of a tire on a vehicle based on wireless messages received from the tire, comprising: a receiver circuit configured to receive the wireless messages; a signal strength circuit configured to determine the signal strengths of the wireless messages; a memory configured to store a predetermined frequency distribution; and a processing circuit configured to provide a frequency distribution of the wireless messages based on the signal strengths, to compare the frequency distribution to the predetermined frequency distribution, and to determine the position of the tire on the vehicle based on the comparison.
Claim 2
Independent Claim
97 words
A system for identifying the position of a tire on a vehicle based on wireless messages received from the tire, comprising: a receiver circuit configured to receive the wireless messages; a signal strength circuit configured to determine the signal strengths of the wireless messages; a memory configured to store a predetermined frequency distribution; and a processing circuit configured to provide a frequency distribution of the wireless messages based on the signal strengths, to compare the frequency distribution to the predetermined frequency distribution, and to determine the position of the tire on the vehicle based on the comparison.
Claim 3
Dependent Claim
37 words
The system of claim 1 , wherein the wireless messages comprise tire pressure data, wherein the processing circuit is configured to generate display signals for display of the tire pressure data and the position of the tire.
Claim 4
Dependent Claim
31 words
The system of claim 1 , wherein the memory includes a plurality of predetermined frequency distributions, each of the predetermined frequency distributions corresponding to one of a plurality of tire positions.
Claim 5
Dependent Claim
34 words
The system of claim 1 , wherein each of the plurality of wireless messages includes tire identification data, wherein the processing circuit is configured to sort the wireless messages by the tire identification data.
Claim 6
Dependent Claim
24 words
The system of claim 1 , wherein the signal strength circuit is configured to determine the received signal strength indicator of the wireless messages.
Claim 7
Dependent Claim
24 words
The system of claim 1 , wherein the signal strength circuit is configured to determine a plurality of signal strengths for each wireless message.
Claim 8
Dependent Claim
33 words
The system of claim 1 , wherein the processing circuit is configured to compare a plurality of characteristics of the frequency distribution with a corresponding plurality of characteristics of the predetermined frequency distribution.
Claim 9
Dependent Claim
36 words
The system of claim 1 , wherein the processor circuit is configured to determine if the tire has changed position on the vehicle based on the comparison of the frequency distribution to the predetermined frequency distribution.
Claim 10
Independent Claim
68 words
A method of identifying the position of a tire on a vehicle, comprising: receiving a plurality of wireless messages from a transmitter associated with the tire; determining the signal strengths of the received wireless messages; providing a frequency distribution of the wireless messages based on the signal strengths; and comparing the frequency distribution to a predetermined frequency distribution to determine the position of the tire on the vehicle.
Claim 11
Independent Claim
68 words
A method of identifying the position of a tire on a vehicle, comprising: receiving a plurality of wireless messages from a transmitter associated with the tire; determining the signal strengths of the received wireless messages; providing a frequency distribution of the wireless messages based on the signal strengths; and comparing the frequency distribution to a predetermined frequency distribution to determine the position of the tire on the vehicle.
Claim 12
Dependent Claim
33 words
The method of claim 9 , wherein the wireless messages each comprise tire pressure data, further comprising generating display signals for display of the tire pressure data and the position of the tire.
Claim 13
Dependent Claim
36 words
The method of claim 9 , wherein each of the plurality of wireless messages includes tire identification data, wherein the step of providing a frequency distribution includes sorting the wireless messages by the tire identification data.
Claim 14
Dependent Claim
25 words
The method of claim 9 , wherein the step of determining the signal strengths includes calculating a received signal strength indicator for each wireless message.
Claim 15
Dependent Claim
29 words
The method of claim 12 , wherein the step of determining the signal strengths includes measuring the received signal strength indicator for a first bit of each wireless message.
Claim 16
Dependent Claim
30 words
The method of claim 9 , wherein the step of determining the signal strengths of the received wireless messages includes determining a plurality of signal strengths for each wireless message.
Claim 17
Dependent Claim
32 words
The method of claim 9 , wherein the step of comparing includes comparing a plurality of characteristics of the frequency distribution with a corresponding plurality of characteristics of the predetermined frequency distribution.
Claim 18
Dependent Claim
24 words
The method of claim 9 , further comprising determining if a tire has changed position on the vehicle based on the step of comparing.
Claim 19
Independent Claim
89 words
A system for determining the position of a tire on a vehicle, comprising: means for receiving a plurality of transmitted messages from a transmitter associated with the tire; means for determining the signal strength of the plurality of transmitted messages; means for providing a frequency distribution of the messages based on the signal strengths of the plurality of transmitted messages; and means for determining the position of the tire on the vehicle based on the frequency distribution of the messages and a stored frequency distribution of signal strength values.
Claim 20
Independent Claim
89 words
A system for determining the position of a tire on a vehicle, comprising: means for receiving a plurality of transmitted messages from a transmitter associated with the tire; means for determining the signal strength of the plurality of transmitted messages; means for providing a frequency distribution of the messages based on the signal strengths of the plurality of transmitted messages; and means for determining the position of the tire on the vehicle based on the frequency distribution of the messages and a stored frequency distribution of signal strength values.
Claim 21
Dependent Claim
34 words
The system of claim 17 , wherein the means for determining includes means for comparing a plurality of characteristics of the frequency distribution to the corresponding plurality of characteristics of the stored frequency distribution.
Claim 22
Dependent Claim
23 words
The system of claim 18 , wherein the means for determining the signal strength determines a plurality of signal strengths for each message.
Claim 23
Dependent Claim
31 words
The system of claim 17 , further comprising means for determining if a tire has changed position on the vehicle and for providing a visual indicia of the tire position change.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-02 | 2006-06-03 | 2006-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-02 | 2010-06-03 | 2010-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-02 | 2014-06-03 | 2014-12-03 | $7700.00 | Window Closed / Lapsed |