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71 条记录 (耗时 0.019 秒)

    System and method for tire pressure monitoring using CDMA tire pressure signals
    34.
    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
    35.
    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
    39.
    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.

    Self-aligning vehicular transmitter system
    40.
    发明授权
    Self-aligning vehicular transmitter system 有权
    自调整车用发射机系统

    公开(公告)号：US07986960B2

    公开(公告)日：2011-07-26

    申请号：US12545568

    申请日：2009-08-21

    申请人： Riad Ghabra ,  Yi Luo ,  Qingfeng Tang

    发明人： Riad Ghabra ,  Yi Luo ,  Qingfeng Tang

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04B17/318

    摘要： A method is provided for self-aligning a transmitting frequency between a portable transceiving device and a base station transceiving device. A test signal is transmitted from one of a portable or base station transceiving devices to the other of the portable or base station transceiving devices. The test signal has a frequency that varies during the transmission. The varying of the frequency of the test signal generates a plurality of discrete signals. The other of the portable or base station transceiving devices measures a RSSI value of each discrete signal. The other of the portable or base station transceiving devices determines a discrete signal having a maximum RSSI value. At least a portion of a subsequent message from the other of the portable transceiving device or the base station transceiving device is transmitted at an optimum frequency used for the test signal identified by the test result signal.

    摘要翻译： 提供了一种用于在便携式收发设备和基站收发设备之间自发对准发送频率的方法。 测试信号从便携式或基站收发设备之一发送到便携式或基站收发设备中的另一个。 测试信号具有在传输期间变化的频率。 测试信号的频率变化产生多个离散信号。 便携式或基站收发设备中的另一个测量每个离散信号的RSSI值。 便携式或基站收发设备中的另一个确定具有最大RSSI值的离散信号。 来自便携式收发设备或基站收发设备中的另一个的后续消息的至少一部分以用于由测试结果信号标识的测试信号的最佳频率被发送。