Control circuit and control method thereof, liquid droplet ejection head and image forming apparatus
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United States of America Patent
Stats
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Sep 1, 2015
Grant Date -
Mar 12, 2015
app pub date -
Sep 11, 2014
filing date -
Sep 12, 2013
priority date (Note) -
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Abstract
A control circuit is disposed in which an analog switch is built, an ON/OFF-timing of the analog switch can be controlled, and mask-patterns can be set, which mask-patterns are used for switching ON/OFF the analog switch can be selected by analog-switch-selection data, and a number of the mask-patterns which can be set can be selected. The circuit includes mask-pattern-setting units for setting one of the mask-patterns by one of switching control signals; and a selection unit for selecting a mode from modes including a first mode in which the number of mask-patterns is smaller and a second mode in which the number of mask-patterns is larger. When the first mode is selected by the selection unit, to one mask-pattern-setting unit which is not selected by the analog-switch-selection data, the same switching control signal that is supplied to another mask-pattern-setting unit which is selected by the analog-switch-selection data is supplied.

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RICOH COMPANY LTD | TOKYO 143-8555 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kida, Hitoshi | Kanagawa, JP | 61 | 441 |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 1, 2027 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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