Browse Prior Art Database

Memory System for Graphics Display Unit

IP.com Disclosure Number: IPCOM000046634D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

Authors:
Megivern, CF [+details]

Abstract

Twin memory banks permit the display of test data from one memory bank while receiving test data for storage in the other memory bank. The graphic display of data from a memory under test is an important test technique. It is also important to examine every output of the memory under test. This combination of features is difficult to achieve when testing a memory that is both fast and large, such as a charge-coupled device memory. An advantageous solution to this problem is illustrated in the figure where twin memory banks including memory A and memory B are provided. Neither memory A nor memory B by itself would be fast enough to capture new data from the memory under test and to provide data for display to the display unit.