Control means and method of controlling a current through a...

Details Control means and method of controlling a current through a... Control means and method of controlling a current through a...

2008-04-01

2008-04-01

Hartman, Jr., Ronald (Department: 2121)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C700S021000, C700S079000, C700S293000, C700S299000, C361S093800, C361S103000, C361S140000

Reexamination Certificate

active

10573554

ABSTRACT:
Method of controlling a current through a coil (L) for the generation of a magnetic field (H) in which: a parameter is determined which is a measure for the value of the resistance (RL) of the coil (L), the current (IL) through the coil (L) is controlled by data (DS) delivered by a data control circuit (DSS), and a stop data signal (SPD) is delivered to the data control circuit (DSS) for (at least) temporarily stopping the control of the current (IL) when the parameter exceeds a certain limit.

REFERENCES:
patent: 6594104 (2003-07-01), Tokuyama et al.
patent: 2001/0055175 (2001-12-01), Tokuyama et al.
patent: WO01/82299 (2001-11-01), None
Disk read-and-write head; Wikipedia; 2 pages.

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