Data processing: measuring – calibrating – or testing – Testing system – Of mechanical system
Patent
1998-07-02
2000-08-01
Hoff, Marc S.
Data processing: measuring, calibrating, or testing
Testing system
Of mechanical system
702176, 369 50, 369 53, G11B 2700, G06F 1100
Patent
active
060980265
ABSTRACT:
A method of testing the durability and performance of a spindle motor in a CD-ROM drive includes the steps of (a) setting a test repetition number of rotation/halt operations of the spindle motor, and a test delay time; (b) executing a rotation/halt command of the spindle motor at a predetermined time interval, when a test command is input; (c) comparing the operation state of the spindle motor with the input command and determining whether an error has occurred, after the test delay time from the time when the rotation/halt command of the spindle motor was input;(d) providing a visual display of an error state, when an error has occurred at step (c); and (e) increasing the value of a counter and returning to step (b) if the counter value is less than the test repetition number, and providing a visual display of test completion if the counter value is not less than the test repetition number, when no error has occurred at step (c). As a result, testing time can be reduced, and the durability of only the spindle motor can be accurately tested.
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Bui Bryan
Bushnell Esq. Robert E.
Hoff Marc S.
Samsung Electronics Co,. Ltd.
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