发明授权
- 专利标题: Control circuit for video printer
- 专利标题(中): 视频打印机控制电路
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申请号: US193787申请日: 1988-05-13
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公开(公告)号: US4855840A公开(公告)日: 1989-08-08
- 发明人: Hiroyuki Kimura , Yasunori Kobori , Kentaro Hamma , Takashi Omata , Katsunori Oki
- 申请人: Hiroyuki Kimura , Yasunori Kobori , Kentaro Hamma , Takashi Omata , Katsunori Oki
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-116814 19870515
- 主分类号: B41J2/00
- IPC分类号: B41J2/00 ; B41J2/44 ; B41J2/525 ; H04N1/40
摘要:
In a video printer, a suffer memory for memorizing picture data corresponding to one line includes a memory addressed by a first address and a second address. And the video printer includes a memory write circuit having a first address generation circuit for generating a first address depending upon gradation of picture data on the basis of inputted picture data and for supplying said first address to the memory and a second address generation circuit for generating an address signal depending upon the number of printing dots of the thermal head and for supplying said address signal to the memory. The video printer also includes a memory read circuit for successively generating the second address for each of the first address and supplying the second address to the memory.