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    • 9. 发明授权
    • Wireless communications systems and method
    • 无线通信系统和方法
    • US07257426B1
    • 2007-08-14
    • US09979199
    • 2000-05-26
    • Todd R. WitkowskiKurt A. DykemaSteven L. GeerlingsMark L. Zeinstra
    • Todd R. WitkowskiKurt A. DykemaSteven L. GeerlingsMark L. Zeinstra
    • H04M1/00
    • H04W84/18G06K7/10386G07C5/008H04B1/3822H04B7/26H04B7/2609H04L29/06H04L67/12H04L67/14H04L69/329H04M1/6041H04M1/6091H04M2250/02H04W4/04H04W4/80H04W88/04H04W88/06
    • A wireless communications system and method adapted for use in automotive applications for enabling automatic, high-speed, wireless voice and/or data communications link to be established between a wide variety of external devices and various electronic subsystems of a vehicle. The apparatus includes first and second RF transceivers which are operated in accordance with a communications specification to enable a seamless, automatic communications link to be created when the two RF transceivers come within a pre-determined proximity of one another, for example, within up to 100 meters of one another. Information from one device is then automatically transmitted over the wireless communications link to the other device. In various implementations the apparatus is used to obtain information from a home PC, a work PC, a notebook PC and various other electronic devices, as well as information from the Internet, which is displayed and/or played back for the user by various subsystems of the vehicle while traveling in the vehicle. Other applications involving retail and manufacturing applications are disclosed by which the apparatus is used to facilitate and/or expedite manufacturing processes or retail transactions via one or more high-speed, secure, wireless communications links which are created automatically and seamlessly between the RF transceivers of the apparatus of the invention.
    • 一种适于在汽车应用中使用的无线通信系统和方法,用于实现在各种外部设备和车辆的各种电子子系统之间建立自动,高速,无线语音和/或数据通信链路。 该设备包括根据通信规范操作的第一和第二RF收发器,以便当两个RF收发器进入彼此之间的预定接近度时能够创建无缝的自动通信链路,例如,在最多 彼此相距100米。 来自一个设备的信息然后通过无线通信链路自动发送到另一设备。 在各种实现中,该装置用于从家庭PC,工作PC,笔记本PC和各种其他电子设备获得信息,以及来自因特网的信息,其由各个子系统显示和/或播放给用户 在车辆行驶时。 公开了涉及零售和制造应用的其他应用,通过该应用,该装置用于通过一个或多个高速,安全的无线通信链路来促进和/或加速制造过程或零售交易,这些通信链路在RF收发器之间自动和无缝地创建 本发明的装置。
    • 10. 发明授权
    • Vehicle compass correction circuit
    • 车辆罗盘校正电路
    • US5511319A
    • 1996-04-30
    • US297699
    • 1994-08-29
    • Steven L. GeerlingsMark J. Bussis
    • Steven L. GeerlingsMark J. Bussis
    • G01C17/38
    • G01C17/38
    • A compass circuit has a magnetic field sensor adapted to be positioned in a vehicle near a source of varying magnetic fields. A source of correction signals is coupled to the compass circuit for providing correction signals applied to the compass circuit for correcting the heading display of the compass circuit when differing levels of magnetic field disturbance occurs to provide accurate heading information. In a preferred embodiment the source of correction signals includes a detector circuit coupled to the vehicle accessory for providing signals directly corresponding to the source of magnetic field interference.
    • 罗盘电路具有适于定位在车辆附近的变化磁场源的磁场传感器。 校正信号源耦合到罗盘电路,用于当发生不同程度的磁场干扰以提供准确的航向信息时,提供施加到罗盘电路的校正信号,以校正罗盘电路的航向显示。 在优选实施例中,校正信号源包括耦合到车辆附件的检测器电路,用于提供直接对应于磁场干扰源的信号。