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Computer system for sending an alert signal over a network when a cover of said system has been opened

  • US 5,945,915 A
  • Filed: 11/06/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 11/06/1997
  • Status: Expired due to Term
First Claim
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1. A computer system coupled to a remote computer via a data communication line and being capable of securing data retained within the system against unauthorized access and notifying said remote computer when an unauthorized access has occurred, said system comprising:

  • a normally closed enclosure,an erasable memory element mounted within said enclosure for selective activation to active and inactive states and for receiving and storing a security password when in the active state,a manually operable option switch mounted within said enclosure, said option switch being operatively connected with said erasable memory element and manually settable by a user of the computer system for setting said erasable memory element to the active and inactive states,a tamper detection switch mounted within said enclosure and operatively connected with said erasable memory element for detecting opening of said enclosure and for generating a tamper alert signal and clearing any stored security password from said erasable memory element in response to any switching of said tamper detection switch,a central processing unit mounted within said enclosure and operatively connected with said erasable memory element for controlling access to at least certain levels of data stored within the system by distinguishing between the active and inactive states of said memory element and between entry and non-entry of any stored security password,a network connector in circuit communication with said CPU, said network connector being operative to receive said tamper alert signal and upon so receiving, transmit an alert packet over the communication line to said remote computer, said alert packet containing an alert message and information which specifically identifies said local computer system, andsaid network connector being supplied with auxiliary power and being operative to receive said tamper alert signal and generate said alert packet regardless of a power state that said computer system is in.

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