发明名称 |
Signal processing apparatus |
摘要 |
A pattern pitch adjustment is applied to dot matrix pattern data as it is output from a CPU to a printer. The data is transferred from a DMA to the printer bit by bit, and the number of synchronizing signals output from the printer for each bit is counted to decide picture element timing. During a given period of time after transferring each data pattern, a waiting signal is applied to the DMA so that space picture element data is fed to the printer.
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申请公布号 |
US4757462(A) |
申请公布日期 |
1988.07.12 |
申请号 |
US19870095520 |
申请日期 |
1987.09.11 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
SATO, KEI;MURAYAMA, NOBORU |
分类号 |
B41J2/51;C09G1/00;G06F3/12;G06K15/10;G09G5/24;G09G5/32;H04N1/00;H04N1/405;(IPC1-7):G06F15/04 |
主分类号 |
B41J2/51 |
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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