Testing apparatus for hard disk drive

Details Testing apparatus for hard disk drive Testing apparatus for hard disk drive

2008-12-22

2011-11-22

Dole, Timothy J (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Instruments and devices for fault testing

C340S642000

Reexamination Certificate

active

08063647

ABSTRACT:
A testing apparatus includes a relay and a connector. The relay includes a coil, first and second single-pole double-throw (SPDT) switches. The first and the second SPDT switches include first and second contacts. The connector includes first and second hard disk drive (HDD) indicator pins, and first and second switch pins. The first contact of the first SPDT switch is grounded. The first contact of the second SPDT switch is connected to the power source. The first HDD indicator pin is connected to a power source. The second HDD indicator pin is connected to the second contact of the first SPDT switch and the second contact of the second SPDT switch. The first switch pin is connected to the power source. The second switch pin is grounded via the coil.

REFERENCES:
patent: 4019128 (1977-04-01), Chebowski
patent: 6574751 (2003-06-01), Lee
patent: 6910157 (2005-06-01), Park et al.
patent: 7015714 (2006-03-01), Pan et al.

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