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    MOBILE DEVICE TRACKING
    1.
    发明申请
    MOBILE DEVICE TRACKING 审中-公开
    移动设备跟踪

    公开(公告)号：WO2007077151A2

    公开(公告)日：2007-07-12

    申请号：PCT/EP2006070087

    申请日：2006-12-21

    Applicant: IBM ,  IBM UK ,  CATO ROBERT THOMAS ,  ZIMMERMAN THOMAS GUTHRIE

    Inventor： CATO ROBERT THOMAS ,  ZIMMERMAN THOMAS GUTHRIE

    IPC: G05D1/02

    CPC classification number: G05D1/0242 ,  G01S17/48 ,  G01S17/74 ,  G05D1/0244 ,  G05D1/0246 ,  G05D2201/0216

    Abstract: The present invention provides a method, apparatus, and computer program product for obtaining the location of, for example, a mobile device. The present invention comprising: obtaining an image of a target in a defined space; analyzing the image to obtain identification data and image positional data, the image positional data comprising a position in the image of a reference point relative to the target; using the identification data to obtain target location data comprising a location of the target in the defined space; and determining the location of the reference point in the defined space by combining the image positional data and the target location data.

    Abstract translation: 本发明提供一种用于获得例如移动设备的位置的方法，装置和计算机程序产品。 本发明包括：在定义的空间中获得目标的图像; 分析图像以获得识别数据和图像位置数据，所述图像位置数据包括相对于所述目标的参考点的图像中的位置; 使用所述识别数据来获得包括所述目标在所述定义的空间中的位置的目标位置数据; 以及通过组合图像位置数据和目标位置数据来确定参考点在所定义的空间中的位置。

    3.
    发明专利
    未知

    公开(公告)号：DE69723917D1

    公开(公告)日：2003-09-11

    申请号：DE69723917

    申请日：1997-04-07

    Applicant: IBM

    Inventor： BJORKLUND RONALD EINAR ,  CATO ROBERT THOMAS

    IPC: G06F1/16

    Abstract: A wearable computer communicates with its display device via an optical link. The optical link may utilize different coloured LEDs and corresponding photodetectors for transmitting and receiving the video and control signals to and from the computer and the hand-held display package. The wearable computer may communicate with a local area network by a radio communications link. The use of two antennas mounted and associated with the wearable computer eliminates any gap within a propagation pattern emanated from the antennas.

    6.
    发明专利
    未知

    公开(公告)号：DE3780270D1

    公开(公告)日：1992-08-13

    申请号：DE3780270

    申请日：1987-10-16

    Applicant: IBM

    Inventor： BROOCKMAN ERIC CHARLES ,  CATO ROBERT THOMAS ,  LAURER GEORGE JOSEPH

    IPC: G02B26/10 ,  G06K7/10 ,  G06K7/12

    Abstract: System for adjusting holographic scanner lockout voltage in a fixed position optical scanner with a multi-faceted holographic disk including circuitry for adjusting the lockout voltage as a function of the focal length of the active facet. A facet identifying signal is used to address a lockout table (84) in processor (38) memory, and a digital value retrieved from the lockout table (84) is converted to analog form (66) and applied through a resistor (68) to a voltage divider (54, 56) in a scaling circuit (52). The voltage divider scales down a white peak following voltage (48) and compares (50) it to a black peak following voltage (48). The facet-dependent lockout voltage biases the junction (58) of the voltage divider to vary the effective lockout voltage as a function of the focal length of the currently active facet.

    7.
    发明专利
    未知

    公开(公告)号：DE3481646D1

    公开(公告)日：1990-04-19

    申请号：DE3481646

    申请日：1984-12-04

    Applicant: IBM

    Inventor： CATO ROBERT THOMAS ,  DICKSON LEROY DAVID ,  STOKES JR

    IPC: G06K7/12 ,  G02B26/10 ,  G06K7/10 ,  H04N1/113 ,  G02B5/32

    Abstract: Operating parameters for a multiple facet holographic disc scanner are adjusted on real time basis as a function of the actual diffraction efficiency of the facet region aligned with the impinging laser beam. The operating parameters are adjusted to achieve optimum signal levels independent of facet characteristics. Diffraction efficiency is inversely related to zero order beam power for a given level of input beam power. A photodetector measures the zero order beam power. The output of this photodetector is used to control video amplifier gain and/or semiconductor laser current.

    8.
    发明专利
    未知

    公开(公告)号：DE69723917T2

    公开(公告)日：2004-07-15

    申请号：DE69723917

    申请日：1997-04-07

    Applicant: IBM

    Inventor： BJORKLUND RONALD EINAR ,  CATO ROBERT THOMAS

    IPC: G06F1/16

    Abstract: A wearable computer communicates with its display device via an optical link. The optical link may utilize different coloured LEDs and corresponding photodetectors for transmitting and receiving the video and control signals to and from the computer and the hand-held display package. The wearable computer may communicate with a local area network by a radio communications link. The use of two antennas mounted and associated with the wearable computer eliminates any gap within a propagation pattern emanated from the antennas.

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