US PATENT SUBCLASS 326 / 115
.~.~ Source-coupled logic (e.g., current mode logic (CML), differential current switch logic (DCSL), etc.)

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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}
115.~.~ Source-coupled logic (e.g., current mode logic (CML), differential current switch logic (DCSL), etc.)

DEFINITION

Classification: 326/115

Source-coupled logic (e.g., current mode logic (CML), differential current switch logic (DCSL), etc.):

(under subclass 112) Subject matter wherein the logic function unit includes an arrangement in which the source channel of plural input transistors are connected to the source and the gate of a referenced transistor, and are commonly grounded (biased) through a current source for performing a nonsaturated, differential logic operation.

(1) Note. Current mode logic (CML) and differential current switch logic are other state-of-the-art expressions for a source-coupled logic arrangement providing complementary drain output and functioning as NOR/OR circuits.