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| Wireless remote telemetry system |
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| Navigation key for a handset |
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| Cellular telephone with audio recording subsystem |
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| Accessory interface system |
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"J" system for securing a portable computer which optionally requires an entry of an invalid power on password (POP), by forcing an entry of a valid POP
| Details |
Inventors: Angelo, Michael F.; Olarig, Sompong P.;
Assignee: Compaq Information Technologies Group, L.P. (Houston, TX)
Primary Examiner: Lee; Thomas
Assistant Examiner: Park; Ilwoo
Attorney, Agent or Firm: Conley, Rose & Tayon, P.C.
A computer security system whereby access is controlled by remote enablement or disablement. The system can be coupled with third-party products to accommodate satellite transmissions for long-distance access control. |
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The numerous innovative teachings of the present application will be described with particular reference to the presently preferred embodiment (by way of example, and not of limitation), in which: FIG.
1C shows a flowchart of the overall security control process once a device is determined stolen from the owner.
Upon first notification from the owner that a device with the innovative embodiment has been stolen, the entity responsible for activating the security mechanism receives the stolen-property report and initiates the security process (step 180).
Next, a verification process executes to ensure that owner is correctly identified with the appropriate piece of equipment (step 182).
When the verification process is completed, the necessary commands are uploaded to a worldwide positioning system (step 184) for satellite broadcast to the device (step 186).
A "locate and lock" sequence is executed (step 188) resulting in the device being disabled by the respective locking circuitry.
In this case, a chip made by M2M, sets a bit in NVRAM (step 190) triggering the security querying process set forth below.
FIG.
1B shows a flowchart of action of the receiver portion of the security control process.
This portion of the process is initiated by the reception of a signal (step 150).
Whenever a signal is received by the security system, the signal is evaluated (step 160) to determine if that specific unit has been reported missing, and should therefore be locked.
As long as the signal indicates that the unit is not missing, the security system will log a time that the last signal was received (step 155), then return to wait for the next signal.
When the signal indicates that the unit has been reported missing, the system will set a bit in non-volatile memory to indicate that the unit should be disabled (step 170).
Note that the receiver circuit is always active, even when the system itself is turned off.
Since this is the case, the disable signal can be sent at any time, and the system will be secured
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Ring Tones 
