Patent US3609600A successfully refreshed from Google Patents.
Patent US4980671A successfully refreshed from Google Patents.
US4980671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote confinement system with timed tamper signal reset
Assignee: BI Inc
•
Filing: 1989-04-26
•
Granted: 1990-12-25
•
Expires: 2009-04-26
Abstract
Abstract A transmitter secured to the body of the confinee is provided with tamper detection means such as a conductive mounting strap, which if broken, sets a resettable electronic latch whose output determines the status of a tamper signal receivable by a remote station located within the confinement area. The latch is connected to a timer which serves to automatically reset the latch a first interval of time after it is initially set thereby eliminating the need for external reset equipment to carry out the reset operation. In order to avoid subterfuge, said first time interval is selected to be longer than any continuous interval of time the confinee is permitted to be absent from the confinement area. Information relating to the status of the tamper signal may also be relayed to a central monitoring station. To prevent transmission of a false tamper indication to the central station, the invention further contemplates inhibiting transmission of tamper indications to the central station in the event that less than a second interval of time, which is greater than said first interval, has elapsed since the occurrence of one or more predetermined events associated with normal operation of the system.
Inventors
- 👤 Jim A. McCurdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:42
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; G08B21/22
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
121 words
A remote confinement system, comprising: (a) a transmitter intended to be worn on the body of a confinee for transmitting a message which includes a tamper signal activated in response to a tamper event; (b) a remote station located within a confinement area the boundary of which is defined by the range of communication between said remote station and said transmitter, said remote station including a receiver for receiving said message when said transmitter is located within said confinement area, and (c) reset means for resetting said tamper signal in response to the elapsing of a first interval of time after said tamper signal is activated, said tamper signal remaining reset until being activated in response to a subsequent tamper event.
Claim 2
Dependent Claim
121 words
A remote confinement system, comprising: (a) a transmitter intended to be worn on the body of a confinee for transmitting a message which includes a tamper signal activated in response to a tamper event; (b) a remote station located within a confinement area the boundary of which is defined by the range of communication between said remote station and said transmitter, said remote station including a receiver for receiving said message when said transmitter is located within said confinement area, and (c) reset means for resetting said tamper signal in response to the elapsing of a first interval of time after said tamper signal is activated, said tamper signal remaining reset until being activated in response to a subsequent tamper event.
Claim 3
Dependent Claim
31 words
The system of claim 1 wherein said first interval of time is selected to be longer than any continuous period said confinee is permitted to be absent from said confinement area.
Claim 4
Dependent Claim
116 words
The system of claim 1 further comprising: (a) a central monitoring station connectable to said remote station via a communication link; (b) means for transmitting from said remote station to said central monitoring station information related to the status of said tamper signal to permit monitoring of said information at said central monitoring station, and (c) means for inhibiting transmission of said information from said remote station to said central monitoring station in the event: (i) said information indicates the occurrence of a tamper event, and (ii) less than a second interval of time has elapsed since the occurrence of a predetermined event, said second interval of time being greater than said first interval of time.
Claim 5
Dependent Claim
22 words
The system of claim 3 wherein said predetermined event comprises the initial application of power to a component of said remote station.
Claim 6
Dependent Claim
42 words
The system of claim 3 wherein said message further includes an identification code recognizable by said remote station and wherein said predetermined event comprises receipt by said remote station of an instruction to change the identification code recognized by said remote station.
Claim 7
Dependent Claim
12 words
The system of claim 1 wherein said reset means comprises a timer.
Claim 8
Dependent Claim
12 words
The system of claim 1 wherein said reset means comprises a counter.
Claim 9
Dependent Claim
20 words
The system of claim 1 wherein said tamper event comprises removal of said transmitter from the body of said confinee.
Claim 10
Dependent Claim
27 words
The system of claim 1 wherein said tamper event comprises interrupting the continuity of a member serving to secure said transmitter to the body of said confinee.
Claim 11
Dependent Claim
27 words
The system of claim 1 wherein said message is correlated to a multi-bit message at least one bit of which contains information correlated to said tamper signal.
Claim 12
Dependent Claim
47 words
The system of claim 6 further comprising timer initialization means coupled to said timer for initializing said timer in response to the occurrence of said tamper event to ensure that said tamper signal is not reset in less than a predetermined time period after said tamper event.
Claim 13
Dependent Claim
47 words
The system of claim 7 further comprising counter initialization means coupled to said counter for initializing said counter in response to the occurrence of said tamper event to ensure that said tamper signal is not reset in less than a predetermined time period after said tamper event.
Claim 14
Dependent Claim
172 words
A remote confinement system, comprising: (a) a transmitter intended to be worn on the body of a confinee for transmitting a message which includes a tamper signal which is activated in response to a tamper event; (b) a central monitoring station for monitoring the status of said tamper signal as well as the presence of said confinee within a confinement area; (c) a remote station located within said remote confinement area, said remote station being connected to said central monitoring station by way of a communication link, said remote station including a receiver for receiving said message when said transmitter is present within said remote confinement area to transmit to said central monitoring station information indicating the presence of said confinee therein as well as the status of said tamper signal, and (d) reset means for resetting said tamper signal in response to the elapsing of a predetermined interval of time after said tamper signal is activated, said tamper signal remaining reset until being activated in response to a subsequent tamper event.
Claim 15
Dependent Claim
172 words
A remote confinement system, comprising: (a) a transmitter intended to be worn on the body of a confinee for transmitting a message which includes a tamper signal which is activated in response to a tamper event; (b) a central monitoring station for monitoring the status of said tamper signal as well as the presence of said confinee within a confinement area; (c) a remote station located within said remote confinement area, said remote station being connected to said central monitoring station by way of a communication link, said remote station including a receiver for receiving said message when said transmitter is present within said remote confinement area to transmit to said central monitoring station information indicating the presence of said confinee therein as well as the status of said tamper signal, and (d) reset means for resetting said tamper signal in response to the elapsing of a predetermined interval of time after said tamper signal is activated, said tamper signal remaining reset until being activated in response to a subsequent tamper event.
Claim 16
Dependent Claim
30 words
The system of claim 13 wherein said interval of time is selected to be longer than any continuous period said confinee is permitted to be absent from said confinement area.
Claim 17
Dependent Claim
41 words
The system of claim 13 further comprising means for inhibiting transmission to said central monitoring station information indicating that a tamper event has occurred if less than a second interval of time has elapsed since the occurrence of a predetermined event.
Claim 18
Dependent Claim
22 words
The system of claim 15 wherein said predetermined event comprises the initial application of power to a component of said remote station.
Claim 19
Dependent Claim
42 words
The system of claim 15 wherein said message further includes an identification code recognizable by said remote station and wherein said predetermined event comprises receipt by said remote station of an instruction to change the identification code recognized by said remote station.
Claim 20
Dependent Claim
134 words
A tamper indicating apparatus for transmitting a message indicative of the proximity of a confinee to a receiver, said apparatus comprising: (a) a transmitter for transmitting said message; (b) securing means for securing said transmitter to the person of the confinee; (c) tamper detection means for detecting tampering with at least one of, said transmitter and said securing means, said tamper detection means being coupled to said transmitter to effect a predetermined change in said message, said change being indicative of said tampering and persisting at least until a rest signal is applied to said tamper detection means, and (d) reset means for generating said reset signal in response to the elapsing of an interval of time after tampering has occurred, said message remaining reset until being activated in response to a subsequent tampering.
Claim 21
Dependent Claim
134 words
A tamper indicating apparatus for transmitting a message indicative of the proximity of a confinee to a receiver, said apparatus comprising: (a) a transmitter for transmitting said message; (b) securing means for securing said transmitter to the person of the confinee; (c) tamper detection means for detecting tampering with at least one of, said transmitter and said securing means, said tamper detection means being coupled to said transmitter to effect a predetermined change in said message, said change being indicative of said tampering and persisting at least until a rest signal is applied to said tamper detection means, and (d) reset means for generating said reset signal in response to the elapsing of an interval of time after tampering has occurred, said message remaining reset until being activated in response to a subsequent tampering.
Claim 22
Dependent Claim
27 words
The apparatus of claim 18 wherein said interval of time is longer than any continuous period said confinee is permitted to be absent from a confinement area.
Claim 23
Dependent Claim
43 words
The apparatus of claim 18 further comprising: initialization means coupled to said reset means for initializing said reset means in response to the occurrence of tampering to ensure that said change persists for at least a predetermined time period after tampering has occurred.
References Cited (Backward Citations)
US3478344A
Cited
US3618067A
Cited
US4056815A
Cited
US4166273A
Cited
US4223830A
Cited
US4331953A
Cited
US4598272A
Cited
US4747120A
Cited
US4686513A
Cited
US4736196A
Cited
US4792796A
Cited
US4812823A
Cited
US4843377A
Cited
US4777478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |