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    11.
    发明专利
    未知

    公开(公告)号：DE69317383D1

    公开(公告)日：1998-04-16

    申请号：DE69317383

    申请日：1993-12-14

    Applicant: XEROX CORP

    Inventor： CROWLEY JOSEPH M ,  RICHLEY EDWARD A ,  SHERIDON NICHOLAS K

    IPC: B01J2/02 ,  B05B3/10 ,  B05B5/025 ,  B05B5/04 ,  B29B9/10 ,  B29D11/00 ,  B29D99/00 ,  G02B26/02 ,  G09G3/16 ,  B01J2/04 ,  B29C47/04 ,  B29C47/06 ,  B29C47/12 ,  G09F9/37

    Abstract: An apparatus for fabricating hemispherically bichromal balls, comprising a separator member (38) having opposing first and second surfaces (34,36) and an edge region (40) in contact with both surfaces, and delivery means for flowing first and second colored hardenable liquid material over the first and second surfaces, respectively, so that the liquid materials arrive at the edge at substantially the same flow rate and form a reservoir (42) outboard of the edge region (40). The reservoir comprises side-by-side regions (44,46) of liquid materials of different colors which do not intermix. Further means is provided for propelling the first and second liquid materials away from the separator member and out of the reservoir into a fluid medium as a plurality of side-by-side bichromal streams (48) whose forward ends become unstable and break up into droplets (10) which form into spherical balls, each of the balls comprising hemispheres of differently colored hardenable liquid, and means for collecting the bichromal balls.

    AMBIENT ENERGY POWERED DISPLAY
    14.
    发明专利
    AMBIENT ENERGY POWERED DISPLAY 未知

    公开(公告)号：CA2282124C

    公开(公告)日：2006-11-14

    申请号：CA2282124

    申请日：1999-09-13

    Applicant: XEROX CORP

    Inventor： SILVERMAN ALEXANDER E ,  HOWARD MATTHEW E ,  RICHLEY EDWARD A ,  PREAS BRYAN T

    IPC: G09F9/37 ,  G02F1/133 ,  G09F9/00 ,  G09G3/34

    Abstract: A bistable display device that is powered only by ambient energy. Ambient energy is collected by an ambient energy receiver which converts the ambient energy in to an operating signal and provides the operating signal to a controller. The controller drives the display device based on the operating signal. A user can create a custom display by fixing customizable patterned electrodes to the display. A display controller uses a self-starting oscillator. The oscillator outputs a clock input signal wave to a ripple counter and a voltage signal to a voltage doubler. The voltage doubler outputs a stored charge signal to a transformer concurrently with a clock pulse that is output by the ripple counter to change a state of the voltage output from the transformer to conductive electrodes within or on the display. The voltage output from the transformer applies an electric field across the display in the portions of the display covered by the conductors to switch the image on the display. As the display is bistable, if the ambient energy receiver and controller are detached from the display or there is an insufficient amount of ambient energy, the image on t he display will stop switching, but will not fade.

    15.
    发明专利
    未知

    公开(公告)号：DE60025417D1

    公开(公告)日：2006-04-06

    申请号：DE60025417

    申请日：2000-07-14

    Applicant: XEROX CORP

    Inventor： RICHLEY EDWARD A

    IPC: B05B3/10 ,  G02F1/17 ,  B01J2/02 ,  B29B9/10 ,  G02B26/02

    Abstract: An apparatus for fabricating bichromal elements comprising a separator member (14) having a central rotating point, the separator member (14) having first (34) and second (36) spaced apart, opposed surfaces with an edge region in contact with both of said opposed surfaces (34,36). The spacing between the opposed surfaces (34,36) varies with the distance outwardly from the central rotating point such that the spacing is the largest at the central rotating point and the spacing decreases outwards from the central rotating point and the spacing is a minimum at the edge region. Further each of the opposed surfaces (34,36) has a substantially annular cup (20) spaced apart from and substantially surrounding the central rotating point. The apparatus for fabricating bichromal elements also includes apparatus for dispensing first and second differently colored hardenable liquids in the cups (20) of the first and second surfaces, respectively, and an apparatus for substantially uniformly spreading the liquid material in the annular cups (20) located in the first (34) and second (36) surfaces and for substantially uniformly spreading the liquid material from the cups (20) over the first (34) and second (36) surfaces toward said edge region to form a reservoir of liquid material outboard of said edge region, and for forming ligaments from said reservoir.

    17.
    发明专利
    未知

    公开(公告)号：DE69922314T2

    公开(公告)日：2005-05-12

    申请号：DE69922314

    申请日：1999-09-14

    Applicant: XEROX CORP

    Inventor： RICHLEY EDWARD A ,  SILVERMAN ALEXANDER E ,  HOWARD MATTHEW E ,  PREAS BRYAN T

    IPC: G02F1/133 ,  G09F9/00 ,  G09F9/37 ,  G09G3/34 ,  G09G3/00 ,  G02B26/02 ,  G02F1/17 ,  G09G3/36

    Abstract: A bistable display device (400) that is powered only by ambient energy. Ambient energy is collected by an ambient energy receiver (420) which converts the ambient energy into an operating signal and provides the operating signal to a controller (C). The controller (C) drives the display device based on the operating signal. A user can create a custom display by fixing customizable patterned electrodes to the display. A display controller uses a self-starting oscillator (530). The oscillator (530) outputs a clock input signal wave to a ripple counter (540) and a voltage signal to a voltage doubler (560). The voltage doubler (560) outputs a stored charge signal to a transformer (570) concurrently with a clock pulse that is output by the ripple counter (540) to change a state of the voltage output from the transformer to conductive electrodes within or on the display. The voltage output from the transformer (570) applies an electric field across the display in the portions of the display covered by the conductors to switch the image on the display. As the display is bistable, if the ambient energy receiver and controller are detached from the display or there is an insufficient amount of ambient energy, the image on the display will stop switching, but will not fade.

    METHOD AND APPARATUS FOR CONTROLLING FORMATION OF TWO-COLOUR BALLS FOR A TWISTING BALL DISPLAY
    19.
    发明专利
    METHOD AND APPARATUS FOR CONTROLLING FORMATION OF TWO-COLOUR BALLS FOR A TWISTING BALL DISPLAY 未知

    公开(公告)号：CA2257756A1

    公开(公告)日：1999-07-09

    申请号：CA2257756

    申请日：1999-01-04

    Applicant: XEROX CORP

    Inventor： RICHLEY EDWARD A

    IPC: G09F9/37 ,  B01J2/04 ,  B29C47/04 ,  G02B26/02

    Abstract: An apparatus for fabricating bichromal balls includes a means for fabricating droplets from electrically conductive hardenable liquids. The liquids have different colors. A forward end of the hardenable liquids becomes unstable and breaks up into the droplets. Each droplet includes hemispheres of different colors. An RF signal generator produces electrical pulses which increase the instability of the forward end of the hardenable liquids. A capacitance in the conductive liquids causes current to flow from the signal generator to the hardenable liquids. A diameter of the droplets is reduced to form substantially spherical balls. Each of the balls includes hemispheres of different colors. The bichromal balls are collected.

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