Control method of vertical scan speed
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United States of America Patent
Stats
-
Mar 22, 1988
Grant Date -
N/A
app pub date -
Aug 8, 1986
filing date -
Aug 14, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
When a document and a recording medium are moved in a vertical scanning direction to read the document and record signals on the recording medium, the read signals are stored in a line buffer memory. The present invention changes over hysteretically a high speed vertical scan mode and a low speed vertical scan mode in accordance with the number of the buffered code bits in the line buffer memory to read the document and record the signal on the recording medium. Thus, the present invention reduces the number of stops of vertical scan.
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