Data display apparatus with character refresh buffer and bow buffers

Data display apparatus with character refresh buffer and bow buffers

A data display apparatus employs a raster scan cathode ray tube (1), a character refresh buffer (2) and three character row buffers (5,6,15) to address a character generator (3) in conjunction with a slice counter (4) or offset slice counter (18) under control of an events control module (20). This...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CANTON, DAVID ALFRED, LLEWELYN, ROGER JAMES, HOLLOWAY, BRIAN LEONARD, SARGEANT, NICHOLAS BRIAN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:A data display apparatus employs a raster scan cathode ray tube (1), a character refresh buffer (2) and three character row buffers (5,6,15) to address a character generator (3) in conjunction with a slice counter (4) or offset slice counter (18) under control of an events control module (20). This enables data within a partition on the CRT to be scrolled smoothly (scan-line-by-scan-line) and characters of different height (requiring different numbers of scans) to be displayed on the same row of the CRT.