Control circuit and control method thereof, liquid droplet ejection head and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9120308
APP PUB NO 20150070421A1
SERIAL NO

14483250

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO 143-8555

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kida, Hitoshi Kanagawa, JP 61 441

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 1, 2027
Fee Large entity fee small entity fee micro entity fee
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
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00