Patent · US Expired

First-in, first-out (FIFO) buffer

US5841722A · kind A · utility

71Cited by
3References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 13, 1997
Grant dateNov 24, 1998
Priority date
Expiry dateFeb 13, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F5/06
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A variable sized FIFO buffer whose size changes in accordance with how much data is present to be passed between the two systems is provided. One embodiment of the FIFO buffer includes at least one lower FIFO, at least one upper FIFO, a RAM and a controller. The upper FIFO buffer receives data from a first system and the lower FIFO buffer writes data to a second system. The RAM is utilized when data can no longer flow between the upper and lower FIFO buffers, due to the lower FIFO buffer being temporarily full.

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