US PATENT SUBCLASS 326 / 104
FUNCTION OF AND, OR, NAND, NOR, or NOT

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

104FUNCTION OF AND, OR, NAND, NOR, or NOT {7}
105  DF  .~> Decoding {1}
109  DF  .~> Bipolar and FET {1}
111  DF  .~> Space discharge device (e.g., vacuum tube, etc.)
112  DF  .~> Field-effect transistor (e.g., JFET, etc.) {7}
124  DF  .~> Bipolar transistor (e.g., RTL, DCTL, etc.) {5}
133  DF  .~> Diode {1}
135  DF  .~> Negative resistance device

DEFINITION

Classification: 326/104

FUNCTION OF AND, OR, NAND, NOR, or NOT:

(under the class definition) Subject matter wherein the logic operations are limited to those defined by the Boolean algebraic operations of AND, OR, NAND, NOR, or NOT.

(1) Note. Miscellaneous electron space discharge systems which perform the logic functions of this subclass are classified here or in the appropriate indented subclass.

(2) Note. For the "exclusive" logic functions, search this class, subclasses 52+.

(3) Note. Multifunctional logic elements where, for example, a single element is capable of being changed from an "AND" to a "NOT" logic function, are classified in this

class, subclasses 37+.

SEE OR SEARCH CLASS

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

23+, for pulse coincidence discriminators or detectors. 365, Static Information Storage and Retrieval, appropriate subclass for electromagnetic storage systems, and

185.01+, for floating gate memory storage (e.g., flash memory).