Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Of relative motion producing mechanism
Reexamination Certificate
2006-02-28
2006-02-28
Miller, Brian E. (Department: 2652)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Of relative motion producing mechanism
C369S053420, C369S044250, C369S044320, C720S695000
Reexamination Certificate
active
07006418
ABSTRACT:
Monitor circuits monitor junction temperatures of chips of driver ICs which drive a driving part of a recording/reproduction system. Comparison circuits compare the junction temperatures with respective arbitrarily set temperatures to output temperature flags as comparison results and are included in the driver ICs. A CPU monitors the temperature flags to confirm febrile states of the respective driver ICs, thereby performing a control so as to continue to drive an optical disk device when the junction temperatures of the chips of the driver ICs are lower than the set temperatures, and to suppress heat generation of the respective driver ICs when the temperatures are equal to or higher than the set temperatures. The so-constituted optical disk device can perform a control so as to effectively suppress heat generation before driving of the optical disk device is impeded by heat generation of the driver ICs which drive the recording/reproduction driving system of the device, thereby performing a fast and stable operation within allowable capacities of the driver ICs.
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Translation of Hachi (JP 2000090563 A).
Translation of Ueki (JP 11016243 A).
Agustin Peter Vincent
Miller Brian E.
Wenderoth , Lind & Ponack, L.L.P.
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