Patent · US Expired

Four-quadrant multiplier

US4071777A · kind A · utility

19Cited by
4References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 6, 1976
Grant dateJan 31, 1978
Priority date
Expiry dateJul 6, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06G7/163
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Circuit employing complementary field-effect transistors operated in the triode mode. A signal representing the multiplicand is applied to the gate electrode of one transistor and a signal representing the multiplier is applied to the drain electrode of the same transistor. The complement of the multiplier signal is applied to the drain electrode of the other transistor. A current indicative of the product is available at the common connection of the source electrodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.