Ternary signal input circuit

Details Ternary signal input circuit Ternary signal input circuit

1998-05-21

2000-03-21

Tokar, Michael

Electronic digital logic circuitry

Three or more active levels

326 59, 326 60, 326 82, 326 86, H03K 1901, H03K 1902

Patent

active

060407093

ABSTRACT:
A ternary signal input circuit includes two inverters having opposite hysteresis characteristics, respectively, a NOR gate for producing an output signal indicative of an inversion of the logical sum of output signals from the inverters, and a AND gate for producing an output signal indicative of the logical product of output signals from the inverters. The ternary signal input circuit, composed only of digital components, converts a ternary signal supplied through a transformer into binary signals and outputs the binary signals. The ternary signal input circuit has a relatively simple circuit arrangement and will take up a relatively small area on an LSI chip when it is incorporated into the LSI chip.

REFERENCES:
patent: 4631428 (1986-12-01), Grimes
patent: 4808854 (1989-02-01), Reinagal

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