Patent · US Expired

Apparatus for selecting mode of output in a computer system

US5091717A · kind A · utility

37Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 1989
Grant dateFeb 25, 1992
Priority date
Expiry dateMay 1, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G5/06
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A computer system comprising a display memory, a window indentification memory, logic circuitry for ascertaining that information to be stored at each position of the display memory is in the correct window by comparing the window number in the window identification memory with the window number of information to be sent to the display memory, and a window identification look-up table activated by window identification signals for providing an output to select the number of bits of color information to be output from the display memory to provide color information for an output device.

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