Patent · US Expired

Device for storing and displaying graphic information

US4442503A · kind A · utility

36Cited by

5References

12Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Dieter Schutt · Munich, DE
Manfred Schwengler · Sindelfingen, DE
Hartmut Ulland · Stuttgart, DE
Helmut Weis · Cochem, DE

Key dates

Filing date	Apr 16, 1981
Grant date	Apr 10, 1984
Priority date	—
Expiry date	Apr 16, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG09G5/393
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A device for storing and displaying graphic information having a storage unit for storing both blocks and rows of data and retrieving rows of data. The storage unit consists of two storage segments, with eight storage modules each, which can operate in an interleaved mode. This permits two-dimensional addressing which consists of distributing the individual elements of a data block over the various separately addressable modules of the storage unit so that no one module contains more than one element of the data block, and that all elements of the data block can be read out in one cycle through simultaneous access of all of the storage modules.

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