发明授权
- 专利标题: Cathode ray tube apparatus
- 专利标题(中): 阴极射线管装置
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申请号: US574189申请日: 1984-01-25
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公开(公告)号: US4489317A公开(公告)日: 1984-12-18
- 发明人: Seiji Shiga
- 申请人: Seiji Shiga
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 优先权: JPX54-164846 19791220
- 主分类号: G06T11/00
- IPC分类号: G06T11/00 ; G09G5/34 ; G09G1/16
摘要:
A cathode ray tube display apparatus is provided comprising a regenerating buffer memory, a row address table and a pointer. The regenerating buffer memory has a greater storage capacity than the display capacity of the CRT screen and stores character information. The row address table has a capacity storing more addresses indicating the rows in the regenerating buffer memory than the number of rows on the CRT screen. The pointer designates an address of the table for determining the stored position of the regenerating memory to be first accessed by the table. This cathode ray tube display apparatus is capable of scrolling and paging easily and quickly without changing the content of the regenerating buffer memory and the row address table.
公开/授权文献
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信息查询
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T11/00 | 2D〔二维〕图像的生成 |