公开(公告)号：US06169957A

公开(公告)日：2001-01-02

申请号：US09147333

申请日：1998-12-04

申请人： Jean-Pierre Arethens

发明人： Jean-Pierre Arethens

IPC分类号： G01S102

CPC分类号： G01S19/20 ,  G01S19/52

摘要： A satellite positioning receiver with velocity calculation integrity check. In order to increase the reliability of the velocity measurements by the receiver, it is proposed to measure the divergence between the measurements taken on n satellite director axes (n>4) and to given an alarm if this divergence exceeds a predetermined threshold. The divergence is measured by the mean square error between the calculated velocity vector and the velocities as measured along the director axes and projected on to the calculated velocity vector.

摘要翻译： 卫星定位接收机，具有速度计算完整性检查。 为了提高接收机的速度测量的可靠性，提出了测量在n个卫星导向轴（n> 4）上进行的测量之间的差异，并且如果该发散超过预定阈值则给出报警。 通过计算出的速度矢量与沿着导向轴测得的速度矢量之间的均方误差来测量发散，并将其投影到计算出的速度矢量上。

公开(公告)号：US06380891B1

公开(公告)日：2002-04-30

申请号：US09534345

申请日：2000-03-24

申请人： Yuzo Yamashita

发明人： Yuzo Yamashita

IPC分类号： G01S102

CPC分类号： G01S19/24

摘要： A GPS receiver has a plurality of data demodulator circuits assigned to a plurality of GPS satellites, respectively, and a data memory which stores detailed orbit information of the GPS satellites. The GPS receiver searches for satellites the detailed orbit information of which was stored in the memory previously. When these searched GPS satellites are acquired, the GPS receiver executes satellite frame synchronization determination processing to check for an agreement among predetermined data included in satellite data transmitted from the acquired GPS satellites. When the searched GPS satellites cannot be acquired or the predetermined data do not agree, the GPS receiver executes a single-satellite frame synchronization determination processing to check for an agreement of predetermined data included in a plurality of frames of the satellite data. The GPS receiver starts positioning processing in response to an establishment of agreement to calculate its position.

摘要翻译： GPS接收机分别具有分配给多个GPS卫星的多个数据解调器电路和存储GPS卫星的详细轨道信息的数据存储器。 GPS接收机搜索先前存储在存储器中的详细轨道信息的卫星。 当获取这些搜索到的GPS卫星时，GPS接收机执行卫星帧同步确定处理，以检查从所获取的GPS卫星发送的卫星数据中包括的预定数据之间的一致性。 当不能获取搜索到的GPS卫星或者预定数据不一致时，GPS接收机执行单卫星帧同步确定处理，以检查包含在卫星数据的多个帧中的预定数据的一致性。 GPS接收机响应于建立协议来开始定位处理以计算其位置。

公开(公告)号：US06587072B1

公开(公告)日：2003-07-01

申请号：US10104633

申请日：2002-03-22

申请人： Robert Ian Gresham ,  Robert Egri

发明人： Robert Ian Gresham ,  Robert Egri

IPC分类号： G01S102

CPC分类号： G01S13/18 ,  G01S7/282 ,  G01S7/288 ,  G01S13/106 ,  G01S13/288 ,  G01S2007/2886

摘要： A radar based sensor detection system comprises a microwave source operative to provide a continuous wave signal at an output. A pulse-former is coupled to the output of the source and is operative to provide at an output a variable length pulse that increases the transmitted energy of the radar system according to the range of object detection. A modulator is coupled to the output of the pulse-former for providing a modulated pulse signal. A transmit receive switch coupled to the output of the modulator is selectively operative between a first transmit position and a second receive position. A transmit channel coupled to the transmit receive switch transmits the pulse signal when the switch is operated in the transmit position. A receiving channel coupled to the transmit receive switch receives the modulator signal when the switch is operated in the receive position. First and second voltage multipliers each have a local oscillator input for receiving the modulator signal in the receive position, and each have an input signal port, and an output port. A receiver channel receives a reflected transmitted signal from an output and applies the received signal to the receive signal input ports of the voltage multipliers. An autocorrelator coupled to the output ports of the voltage multipliers correlates the received signal to produce an output signal indicating the detection and position of the object.

公开(公告)号：US06374177B1

公开(公告)日：2002-04-16

申请号：US09665096

申请日：2000-09-20

申请人： Jeffrey S. Lee ,  Axel Fuchs ,  James Blake Bullock

发明人： Jeffrey S. Lee ,  Axel Fuchs ,  James Blake Bullock

IPC分类号： G01S102

CPC分类号： G01C21/32 ,  G01S5/0027 ,  G06Q10/02 ,  G06Q10/025 ,  G06Q20/203 ,  G06Q30/0267 ,  G06Q30/0277 ,  H04L67/18 ,  H04L69/329

摘要： An internet radio for portable applications and uses such as in an automobile enables providing navigational services to be provided to a wireless communication device, and comprises the steps of providing a user interface in said wireless communication device for providing navigational services to a user; downloading updated navigational data from a remote network; and providing navigational services based upon said updated navigational data. Customized information is also communicated to the radio such as stock quotes, travel information, advertising, and e-mail. Onboard global positioning allows for channel updating by location, traffic information, geographic advertising and available similar content.

摘要翻译： 用于便携式应用和诸如汽车之类的使用的互联网收音机能够提供要向无线通信设备提供的导航服务，并且包括以下步骤：在所述无线通信设备中提供用于向用户提供导航服务的用户界面; 从远程网络下载更新的导航数据; 以及基于所述更新的导航数据提供导航服务。 定制信息也传达给收音机，如股票报价，旅游信息，广告和电子邮件。 板载全球定位允许通过位置，交通信息，地理广告和可用的类似内容更新频道。