Invention Grant
- Patent Title: Gain-scheduled feedback document handling control system
- Patent Title (中): 增益调度反馈文档处理控制系统
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Application No.: US11567287Application Date: 2006-12-06
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Publication No.: US07712737B2Publication Date: 2010-05-11
- Inventor: Jack Gaynor Elliot
- Applicant: Jack Gaynor Elliot
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Pepper Hamilton LLP
- Main IPC: B65H9/00
- IPC: B65H9/00 ; B65H7/02

Abstract:
Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory.
Public/Granted literature
- US20080136092A1 GAIN-SCHEDULED FEEDBACK DOCUMENT HANDLING CONTROL SYSTEM Public/Granted day:2008-06-12
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