Patent · US Expired

Portable, non-volatile read/write memory module

US4654829A · kind A · utility

64Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1984
Grant dateMar 31, 1987
Priority date
Expiry dateDec 17, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C7/24
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A portable, non-volatile read/write memory module includes a battery for providing standby power that is coupled to a monolithic integrated circuit. Five terminals of the module are removably connected to a host electronic system for transfer of data to and from the module. One of the terminals is a chip enable input that may optionally be used for providing operating power to the monolithic integrated circuit. The monolithic integrated circuit further includes control circuitry that may optionally be coded for providing a security feature for access to data stored in the memory module.

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