Ultrasonic control disk drive system

Details Ultrasonic control disk drive system Ultrasonic control disk drive system

1993-10-25

1995-05-02

Voeltz, Emanuel T.

Boots, shoes, and leggings

395750, 395700, 364707, G04F 100, G04F 300

Patent

active

054125855

ABSTRACT:
The invention also known as "Disk-saver" employs a novel method of controlling the power to the hard disk drive of an electronic digital computer. A "Terminate and Stay Resident" (TSR) program is executed in the electronic digital computer which provides the timing function to determine when the hard disk drive should be turned off. When the decision is reached to turn the power on or off, the TSR program generates an ultrasonic coded signal which is sent to a loudspeaker to which the disk-saver module of this invention is connected to monitor the ultrasonic coded signal. When the signal is generated the Disk-saver module of this invention turns the power to the disk drive on or off as directed by the coded ultrasonic signal.

REFERENCES:
patent: 4540984 (1985-09-01), Waldman
patent: 4907183 (1990-03-01), Tanaka
patent: 4980836 (1990-12-01), Carter et al.
patent: 5239652 (1993-08-01), Seibert et al.
patent: 5339445 (1994-08-01), Gasztonyi
patent: 5355501 (1994-10-01), Gross et al.

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