Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2006-11-14
2006-11-14
Ngo, Chuong D. (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
C708S255000
Reexamination Certificate
active
07136889
ABSTRACT:
A method and apparatus for generating high quality real random numbers is provided. In particular, the present invention enables a hard disk drive of a computer to function as a generator of high quality real random numbers by monitoring one or more of a disk drive's parameters, wherein such parameters are subjected to environmental effects. The system of the present invention does not require the addition of any hardware not normally associated with a computer. According to one embodiment of the present invention, a parameter of the disk drive is monitored, and after processing and filtering the parameter is provided to an application as a random number. Monitored parameters may include the position error signal of a transducer head with respect to a track, temperature, channel gain, transducer head flying height, etc. According to one embodiment of the present invention, the various other parameters may be combined or used in concert to provide high quality real random numbers.
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Hansra Tejpal S.
Maxtor Corporation
Ngo Chuong D.
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