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公开(公告)号:US07145507B2
公开(公告)日:2006-12-05
申请号:US10737104
申请日:2003-12-16
申请人: Yi Luo , Oingfeng Tang , Ronald O. King , Thomas J. Lemense
发明人: Yi Luo , Oingfeng Tang , Ronald O. King , Thomas J. Lemense
IPC分类号: G01S5/14
CPC分类号: G01S19/25 , B60R25/00 , G01S5/0009 , G01S19/34 , G01S2205/002
摘要: A vehicle locating system for directing a user to a remotely-located vehicle comprises a vehicle-mounted location unit and a personal fob. The vehicle-mounted location unit includes a first global positioning receiver for receiving satellite location signals which operates at a duty cycle sufficient to maintain predetermined aiding data. The vehicle-mounted location unit processes vehicle location data and further includes a first local data transceiver for transmitting the predetermined aiding data. The portable fob includes a second global positioning receiver for receiving the satellite location signals, wherein the second global positioning receiver operates substantially only when the user initiates a request for directions to the vehicle. The portable fob further includes a second local data transceiver for receiving the predetermined aiding data from the first local data transceiver. The portable fob processes fob location data in response to the predetermined aiding data.
摘要翻译: 用于将用户引导到远程定位的车辆的车辆定位系统包括车载位置单元和私人飞机。 车载定位单元包括第一全球定位接收器,用于接收卫星位置信号,该卫星位置信号以足以维持预定的辅助数据的占空比工作。 车载位置单元处理车辆位置数据,并且还包括用于发送预定辅助数据的第一本地数据收发器。 便携式货架包括用于接收卫星位置信号的第二全球定位接收器,其中第二全球定位接收器基本上仅在用户发起对车辆的指示的请求时才起作用。 便携式支架还包括第二本地数据收发器,用于从第一本地数据收发器接收预定的辅助数据。 便携式小袋纸响应于预定的辅助数据处理支架位置数据。
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公开(公告)号:US20060125599A1
公开(公告)日:2006-06-15
申请号:US11011364
申请日:2004-12-14
申请人: Riad Ghabra , Yi Luo , Oingfeng Tang
发明人: Riad Ghabra , Yi Luo , Oingfeng Tang
IPC分类号: G05B19/00
CPC分类号: H04B17/318
摘要: A method is provided for self-aligning a transmitting RF frequency between a portable transceiving device and a base station transceiving device. The base station transceiving device is mounted in a vehicle for controlling a vehicle accessory function in response to RF messages broadcast between the transceiving devices. The RF signal is transmitted from one of the portable or base station transceiving devices to the other of the portable or base station transceiving devices. The frequency of the RF signal is varied during the transmission. A RSSI value of a received RF signal is measured at selected frequencies. A respective frequency having a maximum RSSI value is determined. At least a portion of a subsequent RF message is transmitted from one of the portable transceiving device or base station transceiving device using the respective frequency.
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公开(公告)号:US07580696B2
公开(公告)日:2009-08-25
申请号:US11011364
申请日:2004-12-14
申请人: Riad Ghabra , Yi Luo , Oingfeng Tang
发明人: Riad Ghabra , Yi Luo , Oingfeng Tang
IPC分类号: H04B1/06
CPC分类号: H04B17/318
摘要: A method is provided for self-aligning a transmitting RF frequency between a portable transceiving device and a base station transceiving device. The base station transceiving device is mounted in a vehicle for controlling a vehicle accessory function in response to RF messages broadcast between the transceiving devices. The RF signal is transmitted from one of the portable or base station transceiving devices to the other of the portable or base station transceiving devices. The frequency of the RF signal is varied during the transmission. A RSSI value of a received RF signal is measured at selected frequencies. A respective frequency having a maximum RSSI value is determined. At least a portion of a subsequent RF message is transmitted from one of the portable transceiving device or base station transceiving device using the respective frequency.
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射RF频率的方法。 基站收发装置安装在车辆中,用于响应于在收发装置之间广播的RF消息来控制车辆附件功能。 RF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。 RF信号的频率在传输期间是变化的。 在所选频率下测量接收的RF信号的RSSI值。 确定具有最大RSSI值的相应频率。 使用相应频率从便携式收发设备或基站收发设备之一发送后续RF消息的至少一部分。
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公开(公告)号:US20050128140A1
公开(公告)日:2005-06-16
申请号:US10737104
申请日:2003-12-16
申请人: Yi Luo , Oingfeng Tang , Ronald King , Thomas Lemense
发明人: Yi Luo , Oingfeng Tang , Ronald King , Thomas Lemense
CPC分类号: G01S19/25 , B60R25/00 , G01S5/0009 , G01S19/34 , G01S2205/002
摘要: A vehicle locating system for directing a user to a remotely-located vehicle comprises a vehicle-mounted location unit and a personal fob. The vehicle-mounted location unit includes a first global positioning receiver for receiving satellite location signals which operates at a duty cycle sufficient to maintain predetermined aiding data. The vehicle-mounted location unit processes vehicle location data and further includes a first local data transceiver for transmitting the predetermined aiding data. The portable fob includes a second global positioning receiver for receiving the satellite location signals, wherein the second global positioning receiver operates substantially only when the user initiates a request for directions to the vehicle. The portable fob further includes a second local data transceiver for receiving the predetermined aiding data from the first local data transceiver. The portable fob processes fob location data in response to the predetermined aiding data.
摘要翻译: 用于将用户引导到远程定位的车辆的车辆定位系统包括车载位置单元和私人飞机。 车载定位单元包括第一全球定位接收器,用于接收卫星位置信号,该卫星位置信号以足以维持预定的辅助数据的占空比工作。 车载位置单元处理车辆位置数据,并且还包括用于发送预定辅助数据的第一本地数据收发器。 便携式货架包括用于接收卫星位置信号的第二全球定位接收器,其中第二全球定位接收器基本上仅在用户发起对车辆的指示的请求时才起作用。 便携式支架还包括第二本地数据收发器,用于从第一本地数据收发器接收预定的辅助数据。 便携式小袋纸响应于预定的辅助数据处理支架位置数据。
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