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    • 7. 发明授权
    • Using viewing-angle-sensitive visual tags to determine angular orientation and/or location
    • 使用视角敏感的视觉标签来确定角度定向和/或位置
    • US07228634B1
    • 2007-06-12
    • US11312826
    • 2005-12-19
    • James E. Reich
    • James E. Reich
    • G01C1/00G01B11/26
    • G01C1/00G01S3/784
    • One embodiment of the present invention provides a system that uses a visual tag to determine an angle. During operation, the system observes the visual tag from an observation point, wherein the visual tag includes an angle-sensitive image which changes in appearance when observed from different angles. Next, the system uses the appearance of the angle-sensitive image (as observed from the observation point) to determine the angle between the visual tag and the observation point. In a variation on this embodiment, the system uses the determined angle along with supplemental information to determine the physical location of the observation point.
    • 本发明的一个实施例提供一种使用视觉标签来确定角度的系统。 在操作期间,系统从观察点观察视觉标签,其中视觉标签包括当从不同角度观察时外观改变的角度敏感图像。 接下来,系统使用角度敏感图像的外观(从观察点观察)来确定视觉标签与观察点之间的角度。 在该实施例的变型中,系统使用确定的角度以及补充信息来确定观察点的物理位置。
    • 8. 发明授权
    • Mobile parking enforcement method
    • 移动停车执法方法
    • US09147345B2
    • 2015-09-29
    • US13068366
    • 2011-05-09
    • Rebecca E. AgraitErica C. DavisTod A. DykstraJan M. NoworolskiJames E. ReichPeter K. Leiser
    • Rebecca E. AgraitErica C. DavisTod A. DykstraJan M. NoworolskiJames E. ReichPeter K. Leiser
    • G06F17/00G06G7/00G08G1/14G07B15/02G08G1/137
    • G08G1/14G07B15/02G08G1/137
    • A real-time wireless parking enforcement system is provided that includes a remote parking enforcement system having a plurality of parking sensors disposed to gather parking occupancy data and at least one source of parking payment data, where the parking occupancy data and parking payment data is communicated to a central server in real-time, and a plurality of wireless mobile platforms are operated by a plurality of parking enforcement officers (PEO's). The wireless mobile platforms send and receive real-time and continuous parking occupancy data and parking payment data to and from the central server, where bidirectional communication exists between the central server and the wireless mobile platforms. When the PEO enters response information to a potential violation to the wireless mobile platform, the bidirectional communication updates the status of the potential violation to all the wireless platforms in real-time, where the information is used to reduce enforcement redundancies by the PEO's.
    • 提供了一种实时无线停车执行系统,其包括具有多个驻车传感器的远程停车执行系统,所述多个停车传感器被设置用于收集停车占用数据和至少一个停车支付数据源,其中停车占用数据和停车支付数据被通信 实时地到中央服务器,并且多个无线移动平台由多个停车执行官员(PEO)操作。 无线移动平台向中央服务器发送和接收来自中央服务器的实时和连续停车占用数据和停车支付数据,其中中央服务器和无线移动平台之间存在双向通信。 当PEO将响应信息输入到无线移动平台的潜在违规时,双向通信实时地将所有无线平台的潜在违规状态更新为该信息,以减少PEO执行冗余。
    • 10. 发明授权
    • Using segmented cones for fast, conservative assessment of collision risk
    • 使用分段锥来快速,保守地评估碰撞风险
    • US07831391B2
    • 2010-11-09
    • US11818191
    • 2007-06-12
    • Daniel H. GreeneJuan LiuJames E. Reich
    • Daniel H. GreeneJuan LiuJames E. Reich
    • G08G1/16
    • G06K9/00805G08G1/165G08G1/166
    • One embodiment of the present invention provides a system that facilitates assessment of collision between a primary principal and a non-primary principal for early warning. During operation, the system receives information which indicates a state of the primary principal and a state of the non-primary principal. The system divides future time into a number of time intervals, and estimates a number of possible future states of the primary and non-primary principals, wherein each future state corresponds to a time interval. The system further represents the possible future states of the primary or non-primary principal as one or more geometric objects in a space of which at least one dimension indicates the time. In addition, the system determines a probability of collision between the primary and non-primary principals based on the geometric objects.
    • 本发明的一个实施例提供了一种有助于评估初级主体和非主要委员之间的冲突用于预警的系统。 在操作期间,系统接收指示主要主体的状态和非主要委托人的状态的信息。 该系统将未来时间划分成多个时间间隔,并且估计主要和非主要负责人的可能未来状态的数量,其中每个未来状态对应于时间间隔。 该系统进一步将主要或非主要委托人的未来状态表示为至少一个维度表示时间的空间中的一个或多个几何对象。 此外,系统基于几何对象来确定主要和非主要原理之间的碰撞概率。