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1. 发明授权

US6052646A Vehicle navigation system with improved powerup performance 失效
公开(公告)号：US6052646A
公开(公告)日：2000-04-18
申请号：US60899
申请日：1998-04-15
申请人： Michael O. Kirkhart , Larry E. Spencer, II
发明人： Michael O. Kirkhart , Larry E. Spencer, II
IPC分类号： G01C21/26 , G01S19/34 , G06F1/32 , G06F7/78 , G06F15/50
CPC分类号： G06F1/3231 , G01C21/26 , G01S19/34 , G06F1/3203 , Y02B60/1289 , Y10S707/99931
摘要： A navigation system includes a driver presence sensor and engine running detection circuitry. When the detection circuitry determines that the engine of the vehicle is not running, the navigation system enters a low power mode. When the presence of the driver is detected, the navigation system begins power up, switching from a low power to a full power operational mode. If the detection circuitry does not determine that the engine is running within a predetermined time period, the navigation system reenters the low power mode. The detection circuitry monitors the vehicle's electrical system and determines that the engine is running when an AC content exceeds a predetermined threshold.

2. 发明授权

US6055479A Vehicle navigation system with improved powerup performance 有权
标题翻译：车载导航系统具有更好的加电性能
公开(公告)号：US6055479A
公开(公告)日：2000-04-25
申请号：US377080
申请日：1999-08-19
申请人： Michael O. Kirkhart , Larry E. Spencer, II
发明人： Michael O. Kirkhart , Larry E. Spencer, II
IPC分类号： G01C21/26 , G01S19/34 , G06F1/32 , B60R5/22
CPC分类号： G06F1/3231 , G01C21/26 , G01S19/34 , G06F1/3203 , Y02B60/1289 , Y10S707/99931
摘要： A navigation system includes a driver presence sensor and engine running detection circuitry. When the detection circuitry determines that the engine of the vehicle is not running, the navigation system enters a low power mode. When the presence of the driver is detected, the navigation system begins power up, switching from a low power to a full power operational mode. If the detection circuitry does not determine that the engine is running within a predetermined time period, the navigation system reenters the low power mode. The detection circuitry monitors the vehicle's electrical system and determines that the engine is running when an AC content exceeds a predetermined threshold.
摘要翻译：导航系统包括驾驶员存在传感器和发动机运行检测电路。当检测电路确定车辆的发动机不运行时，导航系统进入低功率模式。当检测到驾驶员的存在时，导航系统开始上电，从低功率切换到全功率运行模式。如果检测电路没有确定发动机在预定时间段内运行，则导航系统重新进入低功率模式。当AC内容超过预定阈值时，检测电路监视车辆的电气系统并确定发动机正在运行。

3. 发明授权

US06282495B1 Vehicle navigation system with improved powerup performance 有权
标题翻译：车载导航系统具有更好的加电性能
公开(公告)号：US06282495B1
公开(公告)日：2001-08-28
申请号：US09550695
申请日：2000-04-17
申请人： Michael O. Kirkhart , Larry E. Spencer, II
发明人： Michael O. Kirkhart , Larry E. Spencer, II
IPC分类号： B60R522
CPC分类号： G06F1/3231 , G01C21/26 , G01S19/34 , G06F1/3203 , Y02D10/173 , Y10S707/99931
摘要： A navigation system includes a driver presence sensor and engine running detection circuitry. When the detection circuitry determines that the engine of the vehicle is not running, the navigation system enters a low power mode. When the presence of the driver is detected, the navigation system begins power up, switching from a low power to a full power operational mode. If the detection circuitry does not determine that the engine is running within a predetermined time period, the navigation system reenters the low power mode. The detection circuitry monitors the vehicle's electrical system and determines that the engine is running when an AC content exceeds a predetermined threshold.
摘要翻译：导航系统包括驾驶员存在传感器和发动机运行检测电路。当检测电路确定车辆的发动机不运行时，导航系统进入低功率模式。当检测到驾驶员的存在时，导航系统开始上电，从低功率切换到全功率运行模式。如果检测电路没有确定发动机在预定时间段内运行，则导航系统重新进入低功率模式。当AC内容超过预定阈值时，检测电路监视车辆的电气系统并确定发动机正在运行。

4. 发明授权

US5991692A Zero motion detection system for improved vehicle navigation system 失效
标题翻译：零运动检测系统，用于改进车辆导航系统
公开(公告)号：US5991692A
公开(公告)日：1999-11-23
申请号：US579903
申请日：1995-12-28
申请人： Larry E. Spencer, II , Steven R. Croyle
发明人： Larry E. Spencer, II , Steven R. Croyle
IPC分类号： G01C21/00 , G01C21/26 , G01S19/49 , G08G1/0969 , G06G7/78
CPC分类号： G01C25/005 , G01C21/28 , G01P13/00 , G01P21/00 , G01P21/02
摘要： The improved vehicle navigation system and method uses information from a Global Positioning System (GPS) to obtain velocity vectors, which include speed and heading components, for propagating or "dead reckoning" the vehicle position from a previous position to a current position. The improved vehicle navigation system has a GPS receiver which provides the GPS velocity information which is calculated from a full set of GPS delta range measurements. GPS position data alone is not accurate enough for certain applications, such as turn-by-turn route guidance in automobile applications, because its error may be 100 m and there is considerable position drift, even when stationary. GPS velocities are much more accurate than the position data, 1 m/s or thereabouts, and can be used to propagate a known position forward and be more accurate over time than the GPS position solution. These velocities are instantaneous and not those computed from differencing two positions. The current position is calculated by adding displacements obtained from the GPS velocities to the previous position.
摘要翻译：改进的车辆导航系统和方法使用来自全球定位系统（GPS）的信息来获得包括速度和航向分量的速度矢量，用于将车辆位置从先前位置传播或“推算”到当前位置。改进的车辆导航系统具有GPS接收器，其提供从全套GPS范围测量值计算的GPS速度信息。 GPS定位数据对于某些应用来说是不够准确的，例如汽车应用中的转弯路线指引，因为它的误差可能是100米，即使在静止时也存在相当大的位置漂移。 GPS速度比位置数据精度要高出1米/秒左右，可用于向前传播一个已知位置，并且随着时间的推移比GPS位置解更准确。这些速度是瞬时的，不是从差异两个位置计算的速度。通过将从GPS速度获得的位移添加到先前位置来计算当前位置。

5. 发明授权

US5862511A Vehicle navigation system and method 失效
标题翻译：车载导航系统及方法
公开(公告)号：US5862511A
公开(公告)日：1999-01-19
申请号：US580150
申请日：1995-12-28
申请人： Steven R. Croyle , Larry E. Spencer, II , Ernie R. Sittaro
发明人： Steven R. Croyle , Larry E. Spencer, II , Ernie R. Sittaro
IPC分类号： G01C21/00 , G01C21/28 , G01C21/30 , G01P21/00 , G01S5/14 , G01S11/10 , G01S19/14 , G01S19/23 , G08G1/0969 , G06G7/48
CPC分类号： G01C21/30 , G01C21/28 , G01S19/47 , G01S19/52 , G01S11/10
摘要： The improved vehicle navigation system and method uses information from a Global Positioning System (GPS) to obtain velocity vectors, which include speed and heading components, for "dead reckoning" the vehicle position from a previous position. If information from the GPS is not available, then the improved vehicle navigation system uses information from an orthogonal axes accelerometer, such as two or three orthogonally positioned accelerometers, to propagate vehicle position. Because the GPS information should almost always be available, the improved vehicle navigation system relies less on its accelerometers, thereby allowing the use of less expensive accelerometers. The improved vehicle navigation system retains the accuracy of the accelerometers by repeatedly calibrating them with the velocity data obtained from the GPS information. The improved vehicle navigation system calibrates the sensors whenever GPS data is available (for example, once a second at relatively high speeds). Furthermore, the improved vehicle navigation system does not need to rely on map matching to calibrate sensors. System flexibility is improved because map matching is oblivious to the hardware, and the system hardware can be updated without affecting map matching or a change in the map database.
摘要翻译：改进的车辆导航系统和方法使用来自全球定位系统（GPS）的信息来获得包括速度和航向分量的速度矢量，用于从前一位置的“推算”车辆位置。如果来自GPS的信息不可用，则改进的车辆导航系统使用来自诸如两个或三个正交位置加速度计的正交轴加速度计的信息来传播车辆位置。由于GPS信息几乎总是可用，所以改进的车辆导航系统在其加速度计上依赖的较少，从而允许使用较便宜的加速度计。改进的车辆导航系统通过使用从GPS信息获得的速度数据重复校准加速度计来保持加速度计的精度。当GPS数据可用时，改进的车辆导航系统校准传感器（例如，以相对高的速度一秒一次）。此外，改进的车辆导航系统不需要依靠地图匹配来校准传感器。改进了系统的灵活性，因为地图匹配对于硬件无关，可以更新系统硬件，而不影响地图匹配或地图数据库的更改。

6. 发明授权

US06360167B1 Vehicle navigation system with location-based multi-media annotation 有权
标题翻译：车载导航系统与基于位置的多媒体注释
公开(公告)号：US06360167B1
公开(公告)日：2002-03-19
申请号：US09239692
申请日：1999-01-29
申请人： Jeffrey Alan Millington , Larry E. Spencer, II , Donald J. Long , Richard Eklund , Michael G. Lambie
发明人： Jeffrey Alan Millington , Larry E. Spencer, II , Donald J. Long , Richard Eklund , Michael G. Lambie
IPC分类号： G01C2100
CPC分类号： G07C5/008 , G01C21/26
摘要： A navigation system provides multimedia annotations based upon the present location of the vehicle. These presentations may comprise advertising or text or other information entered by the user and associated with a specific location or locations. The navigation system also provides a removable media reader which obtains additional information based upon which the navigation system operates. This additional information may include multimedia annotations which are location-based. The navigation system further includes a wireless communication system which interacts with and provides further location-based multimedia annotations.
摘要翻译：导航系统基于车辆的当前位置提供多媒体注释。这些演示可以包括由用户输入并与特定位置或位置相关联的广告或文本或其他信息。该导航系统还提供一种可移动媒体读取器，其基于导航系统的哪个操作获得附加信息。该附加信息可以包括基于位置的多媒体注释。导航系统还包括与基于位置的多媒体注释进行交互并提供其他基于位置的多媒体注释的无线通信系统。

7. 发明授权

US06308134B1 Vehicle navigation system and method using multiple axes accelerometer 有权
标题翻译：车载导航系统及方法采用多轴加速度计
公开(公告)号：US06308134B1
公开(公告)日：2001-10-23
申请号：US09091430
申请日：1998-11-30
申请人： Steven R. Croyle , Larry E. Spencer, II , Ernie R. Sittaro
发明人： Steven R. Croyle , Larry E. Spencer, II , Ernie R. Sittaro
IPC分类号： G06G778
CPC分类号： G01C21/26 , G01C21/16
摘要： The improved vehicle navigation system uses a multiple, orthogonal axes accelerometer, such as two or three accelerometers which are mounted orthogonal to one another. The two axes whose acceleration are to be measured are the longitudinal (nose to rear bumper) axis and lateral (left to right side) axis. The tangential or longitudinal axis acceleration is integrated once to obtain longitudinal speed and is integrated again to produce a vehicle displacement. The lateral accelerometer measures the centripetal force that the vehicle is encountering which is used to compute a centripetal or lateral acceleration. The lateral acceleration is used to obtain a heading change derived from the lateral acceleration information and the longitudinal speed. Using the heading change and the longitudinal acceleration, the improved vehicle navigation system propagates a previous position to a current position. This is accomplished without the need for connection to the vehicle speed sensor and the heading sensor. If a third axis acceleration measurement sensor is used the improved vehicle navigation system can operate completely independent of vehicle sensors, further increasing flexibility in mounting. The third accelerometer provides pitch to assist in calibrating the other accelerometers or other sensors and in altering the longitudinal and/or lateral acceleration information by, for example, detecting a banked turn.
摘要翻译：改进的车辆导航系统使用多个正交轴加速度计，例如彼此正交安装的两个或三个加速度计。要测量加速度的两个轴是纵向（前后保险杠）轴和横向（左至右）轴。切向或纵轴加速度积分一次以获得纵向速度，并再次集成以产生车辆位移。侧向加速度计测量车辆遇到的向心力，其用于计算向心或横向加速度。横向加速度用于获得从横向加速度信息和纵向速度导出的航向变化。改进的车辆导航系统使用航向改变和纵向加速度将先前的位置传播到当前位置。这是在不需要连接到车速传感器和航向传感器的情况下实现的。如果使用第三轴加速度测量传感器，则改进的车辆导航系统可以完全独立于车辆传感器操作，进一步增加了安装的灵活性。第三加速度计提供间距以辅助校准其它加速度计或其它传感器，并且通过例如检测组合转弯来改变纵向和/或横向加速度信息。

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