US6014080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body worn active and passive tracking device
Assignee: 3M Attenti Ltd
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Filing: 1998-10-28
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Granted: 2000-01-11
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Expires: 2018-10-28
Abstract
Abstract Tamper resistant body-worn tracking device to be worn by offenders or potential victims for use in a wireless communication system receiving signals from a global positioning system (GPS). The tracking device directly communicates spacial coordinates to multiple remote sites. The tracking device is an enclosed case worn on a limb of a person. The case contains a battery, a signaling device, and a circuit board containing a field programmable gate array, a wireless data modem, a conventional GPS receiver, and a matched filtering GPS receiver.
Inventors
- 👤 Hoyt M. Layson, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:44
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; G08B21/0202; G08B21/0205; G08B21/0211; G08B21/023; G08B21/028; G08B21/0286; G08B21/0288; G08B21/18; G08B21/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
172 words
A tamper resistant body-worn tracking device worn on a limb of an offender for use in a wireless communication system receiving signals from a GPS and directly communicating spacial coordinates to multiple remote sites, the body-worn tracking device comprising (a) a sealed enclosed case containing means for implementing tamper detection; (b) a main battery enclosed by the case; (c) a signaling device enclosed by the case; (d) a means to replace the main battery; (e) a circuit board enclosed by the case having attached on the circuit board, a wireless data modem, a GPS receiver having a means to acquire updates to a GPS almanac, a matched filtering GPS receiver, an RF front end connected to the GPS receiver and matched filtering GPS receiver and a field programmable gate array; and (f) the body-worn tracking device in contact with a central station computer containing an algorithm for comparing a current location of the body-worn tracking device to a schedule of rules and location restraints to determine if a static violation has occurred.
Claim 2
Dependent Claim
172 words
A tamper resistant body-worn tracking device worn on a limb of an offender for use in a wireless communication system receiving signals from a GPS and directly communicating spacial coordinates to multiple remote sites, the body-worn tracking device comprising (a) a sealed enclosed case containing means for implementing tamper detection; (b) a main battery enclosed by the case; (c) a signaling device enclosed by the case; (d) a means to replace the main battery; (e) a circuit board enclosed by the case having attached on the circuit board, a wireless data modem, a GPS receiver having a means to acquire updates to a GPS almanac, a matched filtering GPS receiver, an RF front end connected to the GPS receiver and matched filtering GPS receiver and a field programmable gate array; and (f) the body-worn tracking device in contact with a central station computer containing an algorithm for comparing a current location of the body-worn tracking device to a schedule of rules and location restraints to determine if a static violation has occurred.
Claim 3
Dependent Claim
13 words
A body-worn tracking device according to claim 1 containing a battery monitoring circuit.
Claim 4
Dependent Claim
35 words
A body-worn tracking device according to claim 1 wherein the means for implementing tamper detection are battery cover screws that actuate an alarm to a central data base if removed from contact with the case.
Claim 5
Dependent Claim
41 words
A body-worn tracking device according to claim 1 wherein the means for implementing tamper detection is a strap attached to the case and worn around an ankle of the offender which if severed actuates an alarm to a central data base.
Claim 6
Dependent Claim
17 words
A body-worn tracking device according to claim 1 wherein the signaling device is a low profile vibrator.
Claim 7
Dependent Claim
27 words
A body-worn tracking device according to claim 1 wherein the field programmable gate array includes a processor and memory containing a schedule of rules and location constraints.
Claim 8
Dependent Claim
36 words
A body worn tracking device according to claim 1 wherein the wireless data modem communicates directly to remote associated devices selected from the group consisting of victim devices, central data base, supervisory agency and law enforcement.
Claim 9
Dependent Claim
32 words
The body-worn device according to claim 1 wherein the sealed enclosed case contains a backup battery to provide power to the circuit board if the main battery is discharged or during replacement.
Claim 10
Dependent Claim
33 words
The body-worn device according to claim 1 wherein the sealed enclosed case contains a wireless data modem to actively transmit the location of the body-worn device at current health and status frequent intervals.
Claim 11
Dependent Claim
32 words
The body-worn device according to claim 1 wherein the sealed enclosed case contains a wireless data modem to passively transmit the accumulated location movement history of the body-worn device at predetermined intervals.
Claim 12
Independent Claim
155 words
A system for determining the spacial coordinates of an offender comprising attaching a tamper resistant body-worn tracking device to a limb of the offender, and sending signals directly from the body-worn tracking device to remote associated notification devices, the body-worn tracking device providing a sealed case containing: (a) a main battery; (b) a signaling device; (c) a circuit board having attached to the board (1) a wireless data modem, (2) a GPS receiver having a means to acquire updates to a GPS almanac, (3) a matched filtering GPS receiver with an RF front end connected to the GPS receiver and matched filtering GPS receiver, and (4) a field programmable gate array; the system including a central station computer in direct communication with the body-worn device, the computer containing an algorithm for comparing a current location of the body-worn tracking device to a schedule of rules and location restraints to determine if a violation has occurred.
Claim 13
Independent Claim
155 words
A system for determining the spacial coordinates of an offender comprising attaching a tamper resistant body-worn tracking device to a limb of the offender, and sending signals directly from the body-worn tracking device to remote associated notification devices, the body-worn tracking device providing a sealed case containing: (a) a main battery; (b) a signaling device; (c) a circuit board having attached to the board (1) a wireless data modem, (2) a GPS receiver having a means to acquire updates to a GPS almanac, (3) a matched filtering GPS receiver with an RF front end connected to the GPS receiver and matched filtering GPS receiver, and (4) a field programmable gate array; the system including a central station computer in direct communication with the body-worn device, the computer containing an algorithm for comparing a current location of the body-worn tracking device to a schedule of rules and location restraints to determine if a violation has occurred.
Claim 14
Dependent Claim
23 words
The system according to claim 11 including direct communication to a victim's body-worn device to determine if a dynamic rule violation has occurred.
Claim 15
Dependent Claim
17 words
The system according to claim 11 wherein a low profile vibrator is provided as the signaling device.
Claim 16
Dependent Claim
17 words
The system according to claim 11 wherein the circuit board has additionally attached a battery monitoring circuit.
Claim 17
Dependent Claim
23 words
The system according to claim 11 wherein the sealed case contains a field programmable gate array comprising multiple integrated circuits for power saving.
Claim 18
Dependent Claim
22 words
The system according to claim 11 wherein the sealed case contains a passive tracking mode for reduced wireless communications and power savings.
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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) | 2003-01-10 | 2003-07-12 | 2004-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-10 | 2007-07-12 | 2008-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-10 | 2011-07-12 | 2012-01-11 | $7700.00 | Window Closed / Lapsed |