US PATENT SUBCLASS 369 / 146
.~.~.~ Magnetic field variation (e.g., magnetostrictive)

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

99  DF  SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM {4}
127  DF  .~ Mechanical modification or sensing of storage medium {6}
135  DF  .~.~ Specified structure of electrical transducing assembly {11}
146.~.~.~ Magnetic field variation (e.g., magnetostrictive) {2}
147  DF  .~.~.~.~> Moving signal coil
148  DF  .~.~.~.~> Variable reluctance {1}

DEFINITION

Classification: 369/146

Magnetic field variation (e.g., magnetostrictive):

(under subclass 135) Subject matter wherein the electrical transducer has magnetic field variation related to the information signal.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, appropriate subclasses for generator structure of general utility.