发明名称 |
Improvements relating to data display systems. |
摘要 |
<p>A means of addressing a character memory of a data display system in which displayed data is composed of discrete characters the shapes of which are determined by selected dots of a dot matrix. When character information conforms to different character modes of the form m x n x b, where m x n is a bit matrix format which is repeated b times to provide b-bits per displayed character dot, the stored character information includes mode bits which identify the mode. These mode bits are obtained by logic control and addressing means by a first address and are used to determine a second address which varies according to the size of the mode and how many bit patterns it contains. The two addresses select all the dot information required for display of characters in real time. Figure 1 shows a typical data display system in which the invention can be embodied. </p> |
申请公布号 |
EP0111946(A2) |
申请公布日期 |
1984.06.27 |
申请号 |
EP19830201626 |
申请日期 |
1983.11.15 |
申请人 |
PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
BUGG, RICHARD EDWARD FREDERICK |
分类号 |
G06F3/153;G09G1/02;G09G5/24;G09G5/36 |
主分类号 |
G06F3/153 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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