US PATENT SUBCLASS 327 / 570
.~.~ Having "N"-shape curve on I-V plot (e.g., tunnel diode type, etc.)

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
568  DF  .~ Negative resistance type {4}
570.~.~ Having "N"-shape curve on I-V plot (e.g., tunnel diode type, etc.)

DEFINITION

Classification: 327/570

Having "N"-shape curve on I-V plot (e.g., tunnel diode type, etc.):

(under subclass 568) Subject matter including an electron space discharge device or a solid-state device whose characteristic on a current versus voltage plot (i.e., with the current plotted on the Y axis and voltage on the X axis) has an "N"-shape.

(1) Note. A solid-state diode having modified physical properties to reduce the amplitude of the negative slope portion of the curve thereby providing threshold operation is classified in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

571, for a miscellaneous circuit having a device with an "S"-shape negative resistance curve.