Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2006-07-11
2006-07-11
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S423000, C360S046000
Reexamination Certificate
active
07075344
ABSTRACT:
A system and method for measuring in real-time the current of a current mode driver circuit for writing data through a write head in tape or disk drive storage devices, the current mode driver circuit including one or more current mirror circuits for providing a current output in proportion to current through the write head during a write operation, the system comprising: device for converting the current mirror circuit current output into a first voltage; device for generating a second voltage representing a reference current; and, a device for comparing the first voltage value to the second voltage and generating an output signal indicating a ratio of the first and second voltages, the ratio being a measure of the current output of the current mirror circuit.
REFERENCES:
patent: 5282094 (1994-01-01), Ngo
patent: 5770968 (1998-06-01), Cameron
patent: 5822141 (1998-10-01), Chung et al.
patent: 6215302 (2001-04-01), Carey
patent: 6229376 (2001-05-01), Geysen
patent: 6265905 (2001-07-01), Jove et al.
patent: 6282049 (2001-08-01), Cameron et al.
patent: 6310740 (2001-10-01), Dunbar et al.
patent: 6344651 (2002-02-01), Woolaway et al.
patent: 6349007 (2002-02-01), Jiang
patent: 6633441 (2003-10-01), Cheng et al.
Kennel, Esq. John C.
Scully , Scott, Murphy & Presser, P.C.
Wells Kenneth B.
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