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    11.
    发明专利
    未知

    公开(公告)号：DE69620735D1

    公开(公告)日：2002-05-23

    申请号：DE69620735

    申请日：1996-12-27

    Applicant: XEROX CORP

    Inventor： BERLIN ANDREW A

    IPC: B65H5/22 ,  B65H7/02 ,  G01B11/26 ,  G01B21/00 ,  G01J5/00 ,  G01K3/14 ,  G01P3/68 ,  B41J11/42 ,  G05D3/00 ,  G05D3/12 ,  B65H23/04 ,  G01J5/20 ,  H01L27/16 ,  G01K7/01 ,  G01K13/06

    Abstract: An object tracking and motion control system includes a thermal marking unit such as a laser for inducing localized thermal indicia on objects. A thermal tracking unit, typically a micro electro mechanical system (MEMS) such as a two dimensional thermal sensing array, is positioned to measure movement of objects marked with localized thermal indicia. A motion control unit is connected to the thermal tracking unit to permit adjustment of motion of objects marked with induced localized thermal indicia based on their measured movement.

    12.
    发明专利
    未知

    公开(公告)号：DE69708214D1

    公开(公告)日：2001-12-20

    申请号：DE69708214

    申请日：1997-06-16

    Applicant: XEROX CORP

    Inventor： JACKSON WARREN B ,  BIEGELSEN DAVID K ,  BERLIN ANDREW A ,  SPRAGUE ROBERT A ,  CASS TODD A

    IPC: B41J11/42 ,  B65H7/02 ,  G01N13/00 ,  G01N33/34 ,  G03G15/00 ,  H04N1/00

    Abstract: A sensor system (100a) for measuring physical properties of a sheet (116). In one embodiment, the sensor system measures paper curl and thickness using two sensors, each of which includes a member (112), a base (114), and measurement circuit. The two members (112) are positioned in opposition to each other and both contact the sheet (116) as it passes between them. Each member is coupled to a base (114), which includes a measurement circuit. Each measurement circuit measures the displacement of its associated member (112). In another embodiment (Fig. 4), the sensor system measures stiffness and curl using two pairs of opposed sensors. In yet another embodiment, the sensor system measures thermal diffusivity of a sheet using three sensors, one of which includes a heater for heating the sheet of paper and the other two sensors include thermocouples in contact with the sheet of paper for sensing the heat of the paper.

    13.
    发明专利
    未知

    公开(公告)号：DE69820411D1

    公开(公告)日：2004-01-22

    申请号：DE69820411

    申请日：1998-12-11

    Applicant: XEROX CORP

    Inventor： YIM MARK H ,  JACKSON WARREN B ,  CHASE JAMES G ,  BIEGELSEN DAVID K ,  CHEUNG PATRICK C P ,  BERLIN ANDREW A

    IPC: F16K11/052

    Abstract: A valve for redirecting fluid flow has a valve chamber (16) supporting fluid flow, with the valve chamber having an inlet (25), a first outlet (26), and a second outlet (28). The valve chamber (16) can be closed or partially open. A flap element (24) is movable to alternatively block the first outlet (26) and the second outlet (28). In or immediately adjacent to the valve chamber (16) are opposing first and a second catch mechanisms (34,36) for controllably latching the flap element to block respectively the first outlet and the second outlet. The first and second catch mechanisms (34,36) have a disabled state and an activated state for holding and allowing release of the flap element (24). Once the first or second catch mechanism is disabled, the flap element (24) is free to move to another position, provided it can overcome the mechanical fluid flow forces that tend to hold it in position. To counter and utilize such forces for moving the flap element, an impulse mechanism kicks the flap element into the valve chamber, away from one of the first and second catch mechanisms, after one of the first and second catch mechanisms is controllably brought into the disabled state. Since the flap element is unstable, oscillations of the flap element in the fluid flow will eventually bring the flap element into catchment range of one of the first and second catch mechanisms in an activated state.

    15.
    发明专利
    未知

    公开(公告)号：DE69717776T2

    公开(公告)日：2003-05-28

    申请号：DE69717776

    申请日：1997-11-26

    Applicant: XEROX CORP

    Inventor： BERLIN ANDREW A ,  CHEUNG PATRICK C P ,  BIEGELSEN DAVID K ,  JACKSON WARREN B ,  YIM MARK H

    IPC: B41J15/04 ,  B29C67/00 ,  B65G51/03 ,  B65H5/22 ,  B65H9/16 ,  B81B7/00 ,  F16K31/06 ,  H01L21/677

    Abstract: A paper handling system (110) for air mediated transport of sheets or pages of paper (112) is disclosed. Microelectromechanical valves and sensors are embedded in a dielectric substrate (Fig.1) for tracking and controlling paper transport. These microelectromechanical systems can be batch fabricated using resin impregnated dielectric laminates having photolithographically formed circuitry for electrical connections. Use of high speed sensor (140) and valve control systems (152) permit dynamic adjustments to paper trajectory during paper transport.

    16.
    发明专利
    未知

    公开(公告)号：DE69620857D1

    公开(公告)日：2002-05-29

    申请号：DE69620857

    申请日：1996-12-27

    Applicant: XEROX CORP

    Inventor： BERLIN ANDREW A

    IPC: B65H5/22 ,  B65H7/02 ,  B65H23/02 ,  B65H23/04 ,  G01B21/00 ,  B41J11/42 ,  G01P3/68 ,  G05D3/00 ,  G05D3/12

    Abstract: An object tracking and motion control system includes a thermal marking unit such as a laser for inducing localized thermal indicia on objects. A thermal tracking unit, typically a two dimensional thermal sensing array, is positioned to measure movement of objects marked with localized thermal indicia. A motion control unit is connected to the thermal tracking unit to permit adjustment of motion of objects marked with induced localized thermal indicia based on their measured movement.

    18.
    发明专利
    未知

    公开(公告)号：DE69823401T2

    公开(公告)日：2004-09-02

    申请号：DE69823401

    申请日：1998-02-09

    Applicant: XEROX CORP

    Inventor： JACKSON WARREN B ,  YIM MARK H ,  BERLIN ANDREW A

    IPC: B41J29/08 ,  F16F15/02 ,  G01B11/00 ,  G01B11/16 ,  G01B11/27 ,  G01H17/00

    Abstract: A system for detecting and damping vibrations of machine (e.g. printer) components, mechanical devices, buildings, or large structures has a plurality of light beam detectors (22) for generating signals corresponding to a reference of a light beam 32 from a source (30) position. The light beam detectors (22) are partially transparent to allow passage of the light beam (32) through the detector (22), permitting multiple detectors to use the same reference light beam. The detectors (22) are attached to vibration susceptible structural elements (12), with detected movement of the light beam with respect to the partially transparent light beam detector corresponding to movement of the vibration susceptible structural element being passed to a detection control unit (34). Motion control units (38) connected to the detectors (22) can be used to control or damp detected vibrations in real-time.

    19.
    发明专利
    未知

    公开(公告)号：DE69823401D1

    公开(公告)日：2004-06-03

    申请号：DE69823401

    申请日：1998-02-09

    Applicant: XEROX CORP

    Inventor： JACKSON WARREN B ,  YIM MARK H ,  BERLIN ANDREW A

    IPC: B41J29/08 ,  F16F15/02 ,  G01B11/00 ,  G01B11/16 ,  G01B11/27 ,  G01H17/00

    Abstract: A system for detecting and damping vibrations of machine (e.g. printer) components, mechanical devices, buildings, or large structures has a plurality of light beam detectors (22) for generating signals corresponding to a reference of a light beam 32 from a source (30) position. The light beam detectors (22) are partially transparent to allow passage of the light beam (32) through the detector (22), permitting multiple detectors to use the same reference light beam. The detectors (22) are attached to vibration susceptible structural elements (12), with detected movement of the light beam with respect to the partially transparent light beam detector corresponding to movement of the vibration susceptible structural element being passed to a detection control unit (34). Motion control units (38) connected to the detectors (22) can be used to control or damp detected vibrations in real-time.

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