Patent · US Expired

Associative memory and method for the operation thereof

US6160729A · kind A · utility

4Cited by

1References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Jung · Hersbruck, DE
Roland Thewes · Puchheim, DE
Werner Weber · Munich, DE
Andreas Luck · Munich, DE
by Manfred Luck, heir · Dortmund, DE
by Inge Booken, heir · Dortmund, DE

Key dates

Filing date	Sep 29, 1998
Grant date	Dec 12, 2000
Priority date	—
Expiry date	Sep 29, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG11C15/046
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An associative memory contains cells that are formed of a series circuit of an ordinary PMOS transistor with a PMOS transistor with a floating gate. The ordinary PMOS transistor receives of an input vector and the gate of the second PMOS transistor is connected to a learning input. For the associative access, a second vector can be applied to the drain terminal of the second PMOS transistor and, upon readout, the current flow through the respective series circuit is evaluated column-by-column by current evaluator circuits.

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