US5898391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle tracking system
Assignee: SATRONICS CORP
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Filing: 1997-11-14
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Granted: 1999-04-27
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Expires: 2017-11-14
Abstract
Abstract A vehicle alarm system includes a receiver transmitter subsystem, a G.P.S. subsystem for locating a position and a control CPU. The CPU performs a log and locate function in which it logs a first position of the vehicle once during an armed state of an alarm system and then, in response to the passage of a certain time interval, locates the position again. If the position of the vehicle has changed during the alarm of the alarm system, the vehicle's position is transmitted via the receiver/transmitter subsystem to a security response center that can then receive tracking information and locate the vehicle.
Inventors
- 👤 James Jefferies
- 👤 D. Scott Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:53
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/20; G08G1/205; B; B60; B60R; B60R25/00; B60R25/10; B60R25/102; B60R25/30; B60R25/33; B60W; B60W2556/00; B60W2556/45; B60W2556/50; G01; G01S; G01S5/00; G01S5/0009; G01S5/0018; G01S5/0027
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
175 words
A security system for a vehicle, comprising: a vehicle subsystem including an on-board receiver/transmitter capable of receiving data encoding messages and control commands via a two-way paging system; a CPU including means for implementing control functions according to said control commands or alternatively outputting messages; said CPU including a status register; a G.P.S, subsystem for indicating a position of said vehicle when said security system is armed prior to sensing alarm situation; a non-volatile memory containing a program executable by said CPU for logging said position as determined by said G.P.S. subsystem and comparing said logged location of said vehicle with a current location of said vehicle as determined by said G.P.S subsystem at predetermined time intervals; and said CPU having means for updating said status register to indicate said alarm situation based on said comparing; and said G.P.S. subsystem transmitting said current position of said vehicle only in response to one of said alarm situation and a user command to indicate said position, whereby an onboard power source powering said security system is conserved.
Claim 2
Dependent Claim
175 words
A security system for a vehicle, comprising: a vehicle subsystem including an on-board receiver/transmitter capable of receiving data encoding messages and control commands via a two-way paging system; a CPU including means for implementing control functions according to said control commands or alternatively outputting messages; said CPU including a status register; a G.P.S, subsystem for indicating a position of said vehicle when said security system is armed prior to sensing alarm situation; a non-volatile memory containing a program executable by said CPU for logging said position as determined by said G.P.S. subsystem and comparing said logged location of said vehicle with a current location of said vehicle as determined by said G.P.S subsystem at predetermined time intervals; and said CPU having means for updating said status register to indicate said alarm situation based on said comparing; and said G.P.S. subsystem transmitting said current position of said vehicle only in response to one of said alarm situation and a user command to indicate said position, whereby an onboard power source powering said security system is conserved.
Claim 3
Dependent Claim
34 words
A security system according to claim 1, wherein: said CPU includes means for conveying a location of said vehicle from said G.P.S. subsystem to said receiver/transmitter to a user located remote from said vehicle.
Claim 4
Dependent Claim
27 words
A security system according to claim 1, further comprising: means for arming said security system which causes said CPU to execute said program to perform said comparing.
Claim 5
Dependent Claim
57 words
A security system according to claim 1, further comprising: means for addressing multiple receiver/transmitters in addition to said on-board receiver/transmitter using a single umbrella cap code; means for addressing said on-board receiver/transmitter using a single portion of a message transmitted under said umbrella cap code such that only said on-board receiver/transmitter copies and responds to said message.
Claim 6
Dependent Claim
123 words
A security method for a vehicle, comprising: logging a position of a vehicle; storing said logged position in a memory at a beginning of an armed state of a security system; locating a current position of said vehicle during said armed state prior to sensing an alarm condition at predetermined intervals, using a G.P.S. system; initiating said alarm condition of said security system upon a comparison of said logged position with said current position as determined by said G.P.S. system indicating a positional change exceeding a certain distance; and transmitting an alarm status of said vehicle and said current position only in response to said alarm condition, via a two-way paging system, whereby an onboard power source powering said security system is conserved.
Claim 7
Dependent Claim
123 words
A security method for a vehicle, comprising: logging a position of a vehicle; storing said logged position in a memory at a beginning of an armed state of a security system; locating a current position of said vehicle during said armed state prior to sensing an alarm condition at predetermined intervals, using a G.P.S. system; initiating said alarm condition of said security system upon a comparison of said logged position with said current position as determined by said G.P.S. system indicating a positional change exceeding a certain distance; and transmitting an alarm status of said vehicle and said current position only in response to said alarm condition, via a two-way paging system, whereby an onboard power source powering said security system is conserved.
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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) | 2002-04-26 | 2002-10-26 | 2003-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-26 | 2006-10-26 | 2007-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-26 | 2010-10-26 | 2011-04-27 | $7700.00 | Window Closed / Lapsed |