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US6300874B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Anti-theft computer security system

Assignee: Vanguard Products Group Inc
•
Filing: 2000-11-10
•
Granted: 2001-10-09
•
Expires: 2020-11-10
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Abstract

Abstract A computer anti-theft security system comprising a USB connector having a housing section and a contact connected to the housing section is disclosed. A cable is connected to the contact and extends through the housing section. The contact inserts into a USB port of a computer or peripheral and the cable is then connected to a central alarm monitoring unit. A sensor is disposed within the housing and connected to the cable as well. If the USB connector is disconnected from the computer or peripheral, or if the cable is cut, an alarm sounds from the central alarm monitoring unit.

Inventors

  • 👤 Richard Rand

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:38
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/14; G08B13/1409; G08B13/1418

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 164 words
An anti-theft computer security system, comprising: a USB connector comprising: (a) a housing; (b) a contact extending from the housing and having two ground terminals for connecting to a USB port on an electronic device; (c) a sensor disposed within the housing and comprising a diode; a cable comprising a plurality of wires connected to the sensor and contact at one end and having a free end; and a central alarm monitoring unit connected to the free end of the cable, wherein the sensor is connected to two wires in the cable and to two ground terminals such that a circuit is completed when the connector is connected to an electronic device through a USB port, and wherein the circuit is broken when the connector is disconnected or the wire is cut, and wherein said central alarm monitoring unit detects the presence of the sensor and sends an alarm signal when the connector is disconnected from the electronic device or the cable is cut.
Claim 2
Dependent Claim 164 words
An anti-theft computer security system, comprising: a USB connector comprising: (a) a housing; (b) a contact extending from the housing and having two ground terminals for connecting to a USB port on an electronic device; (c) a sensor disposed within the housing and comprising a diode; a cable comprising a plurality of wires connected to the sensor and contact at one end and having a free end; and a central alarm monitoring unit connected to the free end of the cable, wherein the sensor is connected to two wires in the cable and to two ground terminals such that a circuit is completed when the connector is connected to an electronic device through a USB port, and wherein the circuit is broken when the connector is disconnected or the wire is cut, and wherein said central alarm monitoring unit detects the presence of the sensor and sends an alarm signal when the connector is disconnected from the electronic device or the cable is cut.
Claim 3
Dependent Claim 65 words
The system according to claim 1 , wherein the cable has four wires and wherein sensor further comprises a bi-color LED connected to the two wires not connected to the diode, said LED glowing one color when the connector is connected to an electronic device and to the central alarm monitoring unit, and glowing another color when the connector is disconnected from the electronic device.
Claim 4
Dependent Claim 16 words
The system according to claim 1 , wherein one of the ground terminals is a shell.

References Cited (Backward Citations)

US5434558A Cited
US5525965A Cited
US5808371A Cited
US6147603A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2004-10-08 2005-04-09 2005-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-10-08 2009-04-09 2009-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-10-08 2013-04-09 2013-10-09 $7700.00 Window Closed / Lapsed

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