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    Generating pointer movement after removing contact from a touchpad
    22.
    发明专利
    Generating pointer movement after removing contact from a touchpad 未知

    公开(公告)号：GB2409017A

    公开(公告)日：2005-06-15

    申请号：GB0426139

    申请日：2004-11-26

    Applicant: AGILENT TECHNOLOGIES INC

    Inventor： GORDON GARY B

    IPC: A63F13/06 ,  G06F3/038 ,  G06F3/033

    Abstract: In a method and apparatus for controlling a position of a screen pointer of an electronic device, a touchpad (4, fig 1) has a touch sensitive surface generating position signals of a pointing object (such as a finger) and a controller (18, fig 2) generating movement data from the position signals, and further movement data from the position signals when the pointing object is removed from contact with the surface. The further movement data may move at a constant speed, accelerate, or increment with gradually decreasing magnitudes such as an exponential decay to simulate friction, inertia and momentum on a flicked mouse ball, or with a user defined velocity profile. Control by the pointing object in regained when it touches the screen again (step 72, fig 5). An inertial is of particular benefit when a touchpad needs to be repeated swiped to traverse a large screen.

    Optical device for controlling a screen cursor
    23.
    发明专利
    Optical device for controlling a screen cursor 未知

    公开(公告)号：GB2397123A

    公开(公告)日：2004-07-14

    申请号：GB0326146

    申请日：2003-11-07

    Applicant: AGILENT TECHNOLOGIES INC

    Inventor： GORDON GARY B ,  BROSNAN MICHAEL J

    IPC: G06F1/32 ,  G06F3/03 ,  G06F3/038 ,  G06T7/20 ,  G06K11/08

    Abstract: An apparatus, such as a mouse, for controlling a screen cursor for an electronic device (10) having a display screen includes a light source (2) for illuminating an imaging surface (6), thereby generating reflected images. An optical motion sensor generates digital images from the reflected images at a first rate. The motion sensor (16) is configured to generate movement data based on digital images. The movement data is indicative of relative motion between the imaging surface and the apparatus. The motion sensor is configured to modify the first frame rate to one of a plurality of alternative frame rates based on a current relative velocity between the imaging surface and the apparatus. In an alternative embodiment the apparatus is configured to enter a low power mode after a period of inactivity, wherein the generated digital images have few pixels than in the full power mode. In yet another embodiment, the motion sensor generates a plurality of pairs of digital images with an intra-pair time delay and an inter-pair time delay, the inter-pair time delay being greater than the intra-pair time delay. The apparatus may alternatively be an optical trackball or an optical fingerprint sensing device.

    Serpentine electrophoresis channel designed to overcome dispersive race track effect, has straight sections connected by curves including smaller bends
    24.
    发明专利
    Serpentine electrophoresis channel designed to overcome dispersive race track effect, has straight sections connected by curves including smaller bends 未知

    公开(公告)号：DE10039651A1

    公开(公告)日：2001-06-13

    申请号：DE10039651

    申请日：2000-08-14

    Applicant: AGILENT TECHNOLOGIES INC

    Inventor： GORDON GARY B ,  BRENNAN REID A

    IPC: G01N27/447 ,  B01D57/02

    Abstract: The electrophoresis channel (AP1) separates components longitudinally. Its straight sections are connected by curves (30) with inner and outer edges and constrictions (42). Preferred features: The minimal width of the channel is between a quarter and three quarters of the upstream and downstream widths. The inner curved wall has a length exceeding that of a reference curve as parallel as possible to the outer curved wall, extending from the upstream inner end point to the downstream inner end point of the curve. The outer curved wall has a length differing from channel length, the actual difference being the same as the length of the outer curved wall less the length of the inner curved wall. The channel defines a reference difference which is the same as the length of the outer curved wall less the reference length. The actual difference is less than the reference difference. The actual difference is less than half the reference difference. The inner curved wall has at least one bend. It has more bends than the outer curved wall. The inner curved wall has at least two bends in its curvature., the outer curved wall has none. A power supply provides an electric field along the channel.

    25.
    发明专利
    未知

    公开(公告)号：DE60304619D1

    公开(公告)日：2006-05-24

    申请号：DE60304619

    申请日：2003-05-09

    Applicant: AGILENT TECHNOLOGIES INC

    Inventor： GORDON GARY B ,  OSTROWSKI MAGDALENA ANNA

    IPC: B01L3/00 ,  B01F13/00 ,  B01F15/02

    Abstract: A bioanalytic method (AP1) replenishes depleted zones in a sample liquid (161, 162, 163) in a shallow probe-array reaction cell (101, 102, 103) under ultragravity centrifugal forces. The ultragravity overcomes viscous and surface-tension forces to permit replenishment despite a shallow reaction-cell depth of 25 microns. Thus, replenishment is achieved using 1/10 the sample volume normally used in probe-array systems that use mixing to facilitate binding reactions. For similar amounts of sample, the shallow cell takes advantage of a ten-times greater concentration to achieve much greater signal strengths in much shorter times. Thus, signal strengths that normally take 17 hours to achieve are achieved in about 60 minutes.

    27.
    发明专利
    未知

    公开(公告)号：DE10211340A1

    公开(公告)日：2002-10-02

    申请号：DE10211340

    申请日：2002-03-14

    Applicant: AGILENT TECHNOLOGIES INC

    Inventor： WALLACE HUGH ,  GORDON GARY B

    IPC: G06F3/03 ,  G06F3/038 ,  G06F3/033

    Abstract: An apparatus for controlling the position of a screen pointer for an electronic device having a display screen includes an imaging surface against which a portion of the tip of a human digit may be placed. A light source illuminates that portion of the tip of the digit that is placed against the imaging surface, thereby generating reflected images. The apparatus includes a motion transducer. A lens receives the reflected images and directs the reflected images onto the motion transducer. The motion transducer generates digital representations of the reflected images. The motion transducer generates a first set of movement data based on the digital representations of the reflected images. The first set of movement data is indicative of motion of the tip of the digit across the imaging surface. A controller generates a second set of movement data when the tip of the human digit is removed from the imaging surface. The second set of movement data is indicative of motion of the tip of the digit across the imaging surface prior to removal of the tip.

    28.
    发明专利
    未知

    公开(公告)号：DE69620531D1

    公开(公告)日：2002-05-16

    申请号：DE69620531

    申请日：1996-09-18

    Applicant: HEWLETT PACKARD CO ,  AGILENT TECHNOLOGIES INC

    Inventor： GORDON GARY B

    IPC: G06F3/03 ,  G06F3/038 ,  G06F3/042 ,  G06T7/20 ,  G06K11/08 ,  G06K11/18

    Abstract: A method and system for tracking attitude of a device (10) includes fixing a two-dimensional array (16) of photosensors to the device and using the array to form a reference frame (202) and a sample frame (206) of images. The fields of view of the sample and reference frames largely overlap, so that there are common imaged features (204) from frame to frame. Sample frames are correlated (42) with the reference frame to detect differences in location of the common features. Based upon detection of correlations of features, an attitudinal signal indicative of pitch, yaw, and/or roll is generated. In the preferred embodiment, the attitudinal signal is used to manipulate a screen cursor of a display system (72), such as a remote interactive video system (RIVS). However, attitudinal tracking using the invention may be employed in other applications. Another aspect of the invention is that the two-dimensional array (226) is configured to compensate for any curvilinear distortions introduced by a lens system (26) for imaging the features within the field of view of the array.

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