Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-01-06
1999-10-05
Zimmerman, Brian
Communications: electrical
Continuously variable indicating
With meter reading
34082531, 380 4, 380 25, 39518801, 711164, 707 9, G06F 1214
Patent
active
059631422
ABSTRACT:
A personal computer provides security features enabling control over access to data retained in the computer. The computer is secured by having the system ROM provide a password at power-on to a security device which controls access to the secured features. Once a password has been downloaded to the security device, a Protect Resources command is issued to the security device. To gain access to the secured feature after boot-up, the user provides the correct password to the security device and waits for approval from the security device. Since the security device only verifies the password and does not divulge it, security of the system is enhanced. Once access to protected resources is no longer required, the computer issues another Protect Resources command to the security device to once more lock access to the protected resources.
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Kaiser, Jr. Roger A.
Rawlins Paul B.
Shaver Charles N.
Zinsky Timothy R.
Compaq Computer Corporation
Wilson Jr. William H.
Zimmerman Brian
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