Cathode ray tube display system with display location memory
US4240073A · kind A · utility
13Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | May 15, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/31
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube display system apparatus and method in which a memory stores the addresses necessary to cause the electron beam of a cathode ray tube to impinge upon predetermined locations on the cathode ray tube screen. A single beam electron gun can thus selectively activate different types of phosphors in an array of phosphor locations to produce, for example, a multicolor display. An apparatus and method in which a memory stores addresses necessary to cause images to be projected at predetermined locations in a cathode ray tube projection display system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.