Patent · US Expired

Unconditional clock and automatic refresh logic

US4953131A · kind A · utility

20Cited by
1References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 7, 1988
Grant dateAug 28, 1990
Priority date
Expiry dateSep 7, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C11/406
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A novel unconditional clock and automatic refresh logic system is provided which comprises a source of unconditional clock pulses coupled to the memory control logic in a manner which permits automatic refreshing of a dynamic memory. There is further provided clock logic means which sense the conditions in the dynamic memory system during which the dynamic memory is not being refreshed. There is further provided, means for generating automatic clock refresh signals coupled to the memory control logic for initiating continuous automatic refresh cycles when the system clock is being shutdown.

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