Boots – shoes – and leggings
Patent
1994-03-11
1996-09-17
Cosimano, Edward R.
Boots, shoes, and leggings
340584, 340653, 361 94, H02H 900, G08B 2100
Patent
active
055575501
ABSTRACT:
Junction overheating in an actuator controller IC used to position read/write heads in a magnetic disc storage device is prevented by temporarily decreasing actuator controller IC output signal duty cycle when excessive junction temperature is present. The present invention includes means for monitoring and comparing actuator controller IC junction temperature to a reference temperature, and for outputting a warning signal when junction temperature exceeds the reference temperature by too large a margin. The present invention introduces a time delay into the output signal from the actuator controller IC when the warning signal is present. The time delay may be fixed or variable in duration, and may be varied progressively in duration. The time delay may be generated using circuitry, software, firmware, or a combination thereof.
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patent: 4092693 (1978-05-01), Ishikawa et al.
patent: 4907108 (1990-03-01), Masuyama
patent: 4970497 (1990-11-01), Broadwater et al.
Vigil Daniel R.
Volz Leroy A.
Cosimano Edward R.
Seagate Technology Inc.
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