发明名称 |
Television display control apparatus |
摘要 |
Keyboard-controlled apparatus for producing video signals for standard television receivers includes a random access memory having a multiplicity of storage positions each of which corresponds to a preselected discrete portion of the TV raster. Data stored in the random access memory is sequentially read from memory in synchronism with the scanning of the television receiver so that a desired video signal is generated at each discrete position of the cathode ray beam. Data is read into the random access memory at preselected storage positions depending upon a particular image to be displayed. The data writing process is under the control of a micro-processor which is programmed to cause the stored image data to be varied in accordance with the condition of the user-controlled keyboard.
|
申请公布号 |
US4026555(A) |
申请公布日期 |
1977.05.31 |
申请号 |
US19750557484 |
申请日期 |
1975.03.12 |
申请人 |
ALPEX COMPUTER CORPORATION |
发明人 |
KIRSCHNER, WALLACE;HASKEL, LAWRENCE MARTIN |
分类号 |
H04N7/18;A63F13/00;G06T15/70;(IPC1-7):G06F3/14;G06K15/20 |
主分类号 |
H04N7/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|