US PATENT SUBCLASS 326 / 113-- .~.~ Pass transistor logic or transmission gate logic

US PATENT SUBCLASS 326 / 113
.~.~ Pass transistor logic or transmission gate logic

Current as of: June, 1999
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326 /	HD	ELECTRONIC DIGITAL LOGIC CIRCUITRY

104	DF	FUNCTION OF AND, OR, NAND, NOR, or NOT {7}
112	DF	.~ Field-effect transistor (e.g., JFET, etc.) {7}
113		.~.~ Pass transistor logic or transmission gate logic

DEFINITION

Classification: 326/113

Pass transistor logic or transmission gate logic:

(under subclass 112) Subject matter wherein a field-effect transistor performs a logic function using power from two signal inputs which feed through a gate and a source (or drain) terminals with an output taken at the drain (or source) terminal which is an AND function of the two signal inputs.

(1) Note. The use of pass transistor logic saves power and reduces transistor numbers, but lowers the operational speed.

(2) Note. Transmission gate logic includes at least two field-effect transistor elements used as pass transistors, each having a channel of conductivity type opposite that of the other (i.e., complementary FET's).