US PATENT SUBCLASS 315 / 408
.~.~.~ Including solid-state switch


Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
364  DF  .~ Cathode-ray deflections circuits {16}
399  DF  .~.~ Deflection coil circuit {5}
408.~.~.~ Including solid-state switch


DEFINITION

Classification: 315/408

(under subclass 399) Subject matter wherein the electrical circuit connected to the deflection coil includes a solid state switching device.

(1) Note. A solid-state switching device is a semiconductor which may be a diode or a multielectrode element such as a silicon controlled rectifier, a silicon controlled switch, or a four-layer Shockley diode wherein no amplification of the current takes place in passing through the switching device to the deflection coil.

(2) Note. The combination of a deflection circuit including the switching device and a power supply energized from the deflection circuit is also in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379+, for deflection circuits combined with an added control of the cathode-ray beam.

391+, for plural cathode-ray deflection circuits which deflect a cathode-ray beam at plural locations or in a plurality of directions and wherein any of the circuits may include a solid state switch. 395+, for deflection circuits which apply plural potentials or currents to the deflection means wherein the circuits may include a solid state switch in the deflection circuit.

SEE OR SEARCH CLASS

29, Metal Working,

25.02+, for processes and apparatus for making barrier layer devices.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

131+, for miscellaneous sawtooth or sweep waveform generation utilizing a solid-state device, subclasses 438+ for a four or more layer device (e.g., SCR) gating circuit, and subclasses 493+ for a two electrode solid-state device gating circuit.