Wireless communications systems and method
    2.
    发明授权
    Wireless communications systems and method 有权
    无线通信系统和方法

    公开(公告)号:US07257426B1

    公开(公告)日:2007-08-14

    申请号:US09979199

    申请日:2000-05-26

    IPC分类号: H04M1/00

    摘要: 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.

    摘要翻译: 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。

    Trainable RF transceiver
    3.
    发明授权
    Trainable RF transceiver 失效
    可训练射频收发器

    公开(公告)号:US5686903A

    公开(公告)日:1997-11-11

    申请号:US445142

    申请日:1995-05-19

    摘要: A trainable transceiver for learning and transmitting an activation signal that includes an RF carrier frequency modulated with a code for remotely actuating a device, such as a garage door opener. In one embodiment, the trainable transceiver preferably includes a controller, a signal generator, and a dynamically tunable antenna having a variable impedance that may be selectively controlled in accordance with a carrier frequency of a received or transmitted activation signal. In another embodiment, the trainable transceiver preferably includes a phase-locked loop circuit for providing a frequency control voltage to a signal generator to selectively adjust the carrier frequency of the signal generator. In yet another embodiment, the trainable transceiver includes an amplifying circuit for selectively controlling the gain of a modulated radio frequency carrier signal received from the signal generator and for transmitting an amplified output signal to the remotely actuated device. In a further embodiment, the trainable transceiver includes a frequency table including a list of frequencies for remote transmitters known to transmit for only a short duration and the trainable transceiver first reads the short duration frequencies from the frequency table. Some embodiments will include one or more of these various features.

    摘要翻译: 一种用于学习和发送激活信号的可训练收发器,其包括用用于远程致动诸如车库门开启器的设备的代码调制的RF载波频率。 在一个实施例中,可训练收发器优选地包括控制器,信号发生器和具有可变阻抗的动态可调谐天线,该可变阻抗可以根据接收或发射的激活信号的载波频率来选择性地控制。 在另一个实施例中,可训练收发器优选地包括用于向信号发生器提供频率控制电压以选择性地调整信号发生器的载波频率的锁相环电路。 在另一个实施例中,可训练收发机包括放大电路,用于选择性地控制从信号发生器接收的调制射频载波信号的增益,并将放大的输出信号发射到远程致动装置。 在另一实施例中,可训练收发器包括频率表,其包括已知仅在短时间内发送的远程发射机的频率列表,并且可训练收发器首先从频率表读取短持续时间频率。 一些实施例将包括这些各种特征中的一个或多个。

    Wireless mesh network
    6.
    发明授权
    Wireless mesh network 失效
    无线网状网络

    公开(公告)号:US08274928B2

    公开(公告)日:2012-09-25

    申请号:US12141759

    申请日:2008-06-18

    IPC分类号: H04W4/00 H04L12/28 H04L12/40

    CPC分类号: H04W40/28 H04L45/32 H04W84/18

    摘要: A wireless mesh network where a portion of the nodes have reduced receive sensitivity. The negative effects of the density of the wireless mesh network, such as interference, are reduced when fewer nodes receive messages to rebroadcast. In an alternative embodiment, some of the nodes of the mesh network are configured to not rebroadcast even if they receive a message. A method for configuring a dense mesh network is also provided. As many nodes as possible are discovered and registered in the network. Node characteristics of those nodes are adjusted to reduce or eliminate the negative effects of the dense mesh network so that additional nodes may be discovered and registered.

    摘要翻译: 无线网状网络,其中节点的一部分具有降低的接收灵敏度。 当较少的节点接收消息以进行重播时,诸如干扰之类的无线网状网络的密度的负面影响被减小。 在替代实施例中,网状网络的一些节点被配置为即使接收到消息也不进行重播。 还提供了一种用于配置密集网状网络的方法。 在网络中发现和注册尽可能多的节点。 调整这些节点的节点特征以减少或消除密集网状网络的负面影响,从而可以发现和注册附加节点。

    SYSTEM AND METHOD FOR DETERMINING PATH LOSS IN A USE ENVIRONMENT
    7.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING PATH LOSS IN A USE ENVIRONMENT 审中-公开
    用于确定使用环境中路径损失的系统和方法

    公开(公告)号:US20100062722A1

    公开(公告)日:2010-03-11

    申请号:US12552324

    申请日:2009-09-02

    IPC分类号: H04B17/00

    CPC分类号: H04B17/327 H04B17/318

    摘要: A method includes providing a first data collection unit and a second data collection unit, each of the first test data collection unit and the second data collection unit comprising a wireless transceiver and adapted for wireless communication therebetween, physically moving the first data collection unit to each of a plurality of different locations within the use environment associated with use of the home appliance, establishing a radio frequency link between the first data collection unit and the second data collection unit at each of the plurality of different locations within the use environment, characterizing quality of the radio frequency link at each of the plurality of different locations, the quality of the radio frequency link being at least partially based on the path loss within the use environment, and determining an aggregate characterization of the first data collection unit within the use environment using the quality of the radio frequency link at each of the plurality of different locations. A system for characterizing radio communications quality is also provided.

    摘要翻译: 一种方法包括提供第一数据收集单元和第二数据收集单元,第一测试数据收集单元和第二数据收集单元中的每一个包括无线收发器,适于在其间进行无线通信,将第一数据收集单元物理地移动到每个 在与家用电器的使用相关联的使用环境中的多个不同位置的多个不同位置中,在使用环境内的多个不同位置的每个处建立第一数据收集单元和第二数据收集单元之间的射频链路,表征质量 在所述多个不同位置中的每一个处的所述射频链路的所述射频链路的质量至少部分地基于所述使用环境内的路径损耗,以及确定所述使用环境内的所述第一数据收集单元的聚合特性 使用在每个plura的射频链路的质量 不同地点的亲戚。 还提供了一种表征无线电通信质量的系统。

    Electronic system for monitoring a fifth wheel hitch
    8.
    发明授权
    Electronic system for monitoring a fifth wheel hitch 有权
    用于监测第五轮搭接的电子系统

    公开(公告)号:US06452485B1

    公开(公告)日:2002-09-17

    申请号:US09945936

    申请日:2001-09-04

    IPC分类号: G08B2100

    摘要: An electronic system that includes a trailer sensor, a lock sensor and a control circuit determine whether a trailer hitch assembly is properly coupled to a trailer. The trailer sensor senses the position of the trailer relative to the trailer hitch assembly and the lock sensor senses the position of the locking mechanism. The control circuit is coupled to the trailer sensor and the lock sensor and masks an output of the lock sensor for a first predetermined stabilization period after the control circuit initially determines that the trailer hitch assembly is properly coupled to the trailer.

    摘要翻译: 包括拖车传感器,锁定传感器和控制电路的电子系统确定拖车牵引组件是否适当地联接到拖车。 拖车传感器感测拖车相对于拖车牵引组件的位置,并且锁定传感器感测锁定机构的位置。 控制电路在控制电路最初确定拖车牵引装置适当地联接到拖车之后,连接到拖车传感器和锁定传感器并且屏蔽锁定传感器的输出达到第一预定的稳定时间段。