John R Reinert

US Patent:

43013791, Nov 17, 1981

Filed:

Oct 17, 1979

Appl. No.:

6/085827

Inventors:

John R. Reinert - Colorado Springs CO

Assignee:

NCR Corporation - Dayton OH

International Classification:

H03K 3295

US Classification:

307290

Abstract:

A basic Schmitt trigger circuit is modified with additional circuit components for a two-input bistable circuit (latch). The latching Schmitt trigger circuit exhibits enhanced operating characteristics, such as fast and reliable switching between stable states. Also the circuit is compatible with design parameters and operating tolerances of integrated circuits. The latching Schmitt trigger circuit enables implementation of a fast reliable arbitration circuit in an integrated circuit version by minimizing the necessary time delay between the end of a resource request signal period and the start of an interrogate signal period.