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71 条记录 (耗时 0.021 秒)

    System and method for tire pressure monitoring using CDMA tire pressure signals
    23.
    发明授权
    System and method for tire pressure monitoring using CDMA tire pressure signals 失效
    使用CDMA轮胎压力信号进行轮胎压力监测的系统和方法

    公开(公告)号：US06864803B2

    公开(公告)日：2005-03-08

    申请号：US09977157

    申请日：2001-10-12

    申请人： Qingfeng Tang ,  John S. Nantz ,  Riad Ghabra ,  Salman Khreizat ,  Ronald O. King

    发明人： Qingfeng Tang ,  John S. Nantz ,  Riad Ghabra ,  Salman Khreizat ,  Ronald O. King

    IPC分类号： B60C23/04 ,  G08B21/00

    CPC分类号： B60C23/0408

    摘要： A system and method for monitoring vehicle tire pressure. A tire monitor for each tire includes a pressure sensor for sensing tire pressure and a transmitter for transmitting a signal representative of the sensed tire pressure. A receiver for mounting on the vehicle receives the tire pressure signals. The transmitters and the receiver utilize code division multiple access (CDMA) for the tire pressure signals so that tire pressure signals transmitted simultaneously by the transmitters can be received by the receiver. A controller for mounting on the vehicle communicates with the receiver and collects and processes the tire pressure signals, and generates control signals for use in conveying tire pressure information to a vehicle occupant.

    摘要翻译： 一种用于监测车辆轮胎压力的系统和方法。 每个轮胎的轮胎监视器包括用于感测轮胎压力的压力传感器和用于传送表示所感测的轮胎压力的信号的发射器。 用于安装在车辆上的接收器接收轮胎压力信号。 发射机和接收机利用用于轮胎压力信号的码分多址（CDMA），使得由发射机同时传输的轮胎压力信号可以由接收机接收。 用于安装在车辆上的控制器与接收器通信并收集和处理轮胎压力信号，并且产生用于将轮胎压力信息传送给车辆乘客的控制信号。

    System and method for remote tire pressure monitoring with low frequency initiation
    24.
    发明授权
    System and method for remote tire pressure monitoring with low frequency initiation 失效
    用于低频启动的远程轮胎压力监测的系统和方法

    公开(公告)号：US06838985B2

    公开(公告)日：2005-01-04

    申请号：US10323546

    申请日：2002-12-18

    申请人： Riad Ghabra ,  John S. Nantz ,  Qingfeng Tang ,  Salman Khreizat

    发明人： Riad Ghabra ,  John S. Nantz ,  Qingfeng Tang ,  Salman Khreizat

    IPC分类号： B60C23/04 ,  H01Q1/32 ,  H01Q7/00 ,  B60C23/00 ,  B60C23/02 ,  G08B13/14

    CPC分类号： B60C23/0416 ,  H01Q1/3233 ,  H01Q1/3291 ,  H01Q7/00

    摘要： A system for remote monitoring of vehicle tire pressure includes monitors mounted in the tires, each including a tire pressure sensor, a transmitter for transmitting a tire pressure signal, a battery for the transmitter, and a receiver for receiving an initiation signal. Initiators are mounted on-board the vehicle, each initiator associated with one of the tire monitors. Each initiator is for use in generating a low frequency initiation signal for receipt by a tire receiver to cause the transmitter to transmit a tire pressure signal. A vehicle mounted controller activates the initiators in order to generate the low frequency initiation signals, and processes the tire pressure signals to convey tire pressure information to a user. The controller further activates the initiators in order to generate a low frequency electromagnetic field for use in recharging the batteries in the tire monitors.

    摘要翻译： 用于车辆轮胎压力的远程监视的系统包括安装在轮胎中的监视器，每个包括轮胎压力传感器，用于发送轮胎压力信号的发射器，用于发射器的电池，以及用于接收起始信号的接收器。 起动器安装在车辆上，每个起动器与轮胎监视器之一相关联。 每个起动器用于产生低频启动信号以供轮胎接收器接收，以使发射器传输轮胎压力信号。 车载控制器激活起动器以产生低频启动信号，并处理轮胎压力信号以将轮胎压力信息传送给用户。 控制器进一步激活起动器，以便产生用于对轮胎监视器中的电池再充电的低频电磁场。

    System for automatically charging the battery of a remote transmitter for use in a vehicle security system
    28.
    发明授权
    System for automatically charging the battery of a remote transmitter for use in a vehicle security system 有权

    公开(公告)号：US06366051B1

    公开(公告)日：2002-04-02

    申请号：US09924284

    申请日：2001-08-08

    申请人： John S. Nantz ,  Riad Ghabra ,  Qingfeng Tang ,  Ronald O. King ,  Douglas C. Campbell

    发明人： John S. Nantz ,  Riad Ghabra ,  Qingfeng Tang ,  Ronald O. King ,  Douglas C. Campbell

    IPC分类号： H02F700

    CPC分类号： H02J7/0054 ,  H02J7/02 ,  H02J7/025 ,  H02J2007/0037

    摘要： A system for automatically charging a battery of a remote keyless entry transmitter includes a voltage monitoring circuit having a first microprocessor which monitors battery voltage and which causes the transmitter to send an RF signal to a receiver in the form of a base station on a motor vehicle. The signal causes a charging circuit of the base station to activate an inductive field to cause the battery to be fully charged. In one embodiment, the first microprocessor also causes the transmitter to send a second signal to the base station to shut down the charging field when the battery voltage reaches a predetermined upper limit. In another embodiment, a second microprocessor of the base station tracks the charging time and shuts down the charging field when the charging time reaches a predetermined amount. Alternatively, charging can be done by direct contact or other means. In this way, the system not only allows for extended battery life by limiting the number of charge cycles on the battery but also allows for optimum discharge of the battery before a charging cycle begins.

    Remote keyless entry system with two-way long range communication
    29.
    发明授权
    Remote keyless entry system with two-way long range communication 有权
    遥控无钥匙进入系统，双向远程通讯

    公开(公告)号：US08026793B2

    公开(公告)日：2011-09-27

    申请号：US10960657

    申请日：2004-10-07

    申请人： Yi Luo ,  Riad Ghabra ,  Qingfeng Tang

    发明人： Yi Luo ,  Riad Ghabra ,  Qingfeng Tang

    IPC分类号： H04Q1/00

    CPC分类号： B60R25/24 ,  G07C9/00309 ,  G07C2009/00793 ,  G07C2209/62 ,  H04B1/04

    摘要： Vehicle information (e.g., status information, calibratable parameters, or diagnostic data) is transmitted from a base station mounted in a vehicle to a portable RKE fob via a radio-frequency signal within a specified average field strength limit. A multi-byte vehicle message is formed and then coded into a multi-bit coded message. The multi-bit coded message is framed into a plurality of packets. The radio-frequency signal is wirelessly transmitted from the base station with a plurality of spaced packet windows having a predetermined duty cycle, each packet window including a respective one of the plurality of packets. The radio-frequency signal within each of the packet windows has a predetermined field strength greater than the average field strength limit and a substantially zero field strength between the packet windows. The predetermined duty cycle results in an actual average field strength for transmitting all of the packets not exceeding the average field strength limit.

    摘要翻译： 车辆信息（例如，状态信息，可校准参数或诊断数据）经由指定平均场强限度内的射频信号从安装在车辆中的基站发送到便携式RKE FOB。 形成多字节车辆消息，然后编码成多位编码消息。 多比特编码消息被构成多个分组。 射频信号是从具有预定占空比的多个间隔分组窗口从基站无线发送的，每个分组窗口包括多个分组中的相应一个分组。 每个分组窗口内的射频信号具有大于平均场强限度的预定场强和分组窗口之间基本为零的场强。 预定的占空比导致实际的平均场强，用于传送不超过平均场强极限的所有分组。

    Transmit antenna multiplexing for vehicular passive entry systems
    30.
    发明授权
    Transmit antenna multiplexing for vehicular passive entry systems 失效
    用于车辆被动进入系统的发射天线复用

    公开(公告)号：US07433647B2

    公开(公告)日：2008-10-07

    申请号：US11127560

    申请日：2005-05-12

    申请人： Thomas J. LeMense ,  Riad Ghabra ,  Qingfeng Tang

    发明人： Thomas J. LeMense ,  Riad Ghabra ,  Qingfeng Tang

    IPC分类号： H04B5/00

    CPC分类号： H01Q1/3241 ,  H01Q1/3266 ,  H01Q1/3291 ,  H01Q21/28

    摘要： An antenna coupler for a wireless communication system in a vehicle couples a transmit signal source to a plurality of antennas arranged within the vehicle. A first saturable reactor has a first load winding and a first control winding wound on a first saturable core, the first load winding coupling the signal source to a first antenna. A first current source is coupled to the first control winding for providing a selected current to the first control winding. A second saturable reactor has a second load winding and a second control winding wound on a second saturable core, the second load winding coupling the signal source to a second antenna. A second current source is coupled to the second control winding for providing a selected current to the second control winding. A controller is coupled to the first and second current sources for commanding the first and second selected currents to selectably attenuate or non-attenuate a transmit signal from the transmit signal source to each respective antenna.

    摘要翻译： 用于车辆中的无线通信系统的天线耦合器将发送信号源耦合到布置在车辆内的多个天线。 第一饱和电抗器具有卷绕在第一可饱和磁芯上的第一负载绕组和第一控制绕组，第一负载绕组将信号源耦合到第一天线。 第一电流源耦合到第一控制绕组，用于向第一控制绕组提供所选择的电流。 第二饱和电抗器具有缠绕在第二饱和磁芯上的第二负载绕组和第二控制绕组，所述第二负载线圈将信号源耦合到第二天线。 第二电流源耦合到第二控制绕组，用于向第二控制绕组提供所选择的电流。 控制器耦合到第一和第二电流源，用于命令第一和第二选定电流可选地衰减或非衰减从发射信号源到每个相应天线的发射信号。