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1. 发明授权

US4916373A Windshield wash and wipe after wash system 失效
标题翻译：挡风玻璃清洗后擦拭
公开(公告)号：US4916373A
公开(公告)日：1990-04-10
申请号：US363225
申请日：1989-06-06
申请人： Rafi A. Al-Attar , Annaliza O. Sollestre , Michael P. Williams , Patrick D. Dean
发明人： Rafi A. Al-Attar , Annaliza O. Sollestre , Michael P. Williams , Patrick D. Dean
IPC分类号： B60S1/48
CPC分类号： B60S1/482 , Y10S318/02
摘要： A windshield wash and wipe after wash circuit responsive to any of a plurality of wash and wipe conditions causes a wiper arm and blade assembly to park with a high rate of consistency at an absolute park position out of the vision of the operator.
摘要翻译：响应于多个洗涤和擦拭条件中的任何一个，挡风玻璃洗涤和擦拭洗涤回路之后，使得刮水器臂和叶片组件以绝对停放位置的高速率的一致性停放在操作者的视野之外。

2. 发明授权

US5297065A Magnetic transient detection and calibration technique for an auto-calibrating compass 失效
标题翻译：用于自动校准罗盘的磁性瞬态检测和校准技术
公开(公告)号：US5297065A
公开(公告)日：1994-03-22
申请号：US815268
申请日：1991-12-27
申请人： Russell E. Cage , John A. Wilke , Rafi A. Al-Attar
发明人： Russell E. Cage , John A. Wilke , Rafi A. Al-Attar
IPC分类号： G01C17/38 , G01D3/02 , G01D18/00 , G01C25/00
CPC分类号： G01D3/02 , G01C17/38 , G01D18/004
摘要： A magnetic transient detection technique which alerts a microcomputer of an auto-calibrating compass when electrical transients which produce magnetic transients have occurred. The technique employs an electronic compass control circuit having a sampling rate high enough to isolate electrical transients from transients produced by normal motion of the vehicle. Accelerations in data values defined as the difference between two changes in the coordinates for the center of the earth's magnetic field circle, are calculated and compared to predetermined threshold accelerations. Previous acceleration values and their associated vehicle magnetic field vectors can be stored in the microcomputer. After a magnetic transient is detected, its associated vehicle magnetic field vector is subtracted from the resultant magnetic field to yield vehicle heading. Once detected, magnetic transients are also used to initiate auto-calibration.
摘要翻译：一种磁瞬变检测技术，当发生产生磁瞬变的瞬变时，可以向微型计算机通知自动校准罗盘。该技术采用电子罗盘控制电路，该电子罗盘控制电路具有足够高的采样率，以将电瞬态与车辆正常运动产生的瞬变隔离开来。计算定义为地球磁场中心坐标的两个变化之间差异的数据值的加速度，并将其与预定阈值加速度进行比较。先前的加速度值及其相关联的车辆磁场矢量可以存储在微型计算机中。在检测到磁暂态后，从所得磁场中减去其相关联的车辆磁场矢量，以产生车辆行驶。一旦检测到，磁瞬变也用于启动自动校准。

3. 发明授权

US5828984A Data processing method for an electronic compass system 失效
标题翻译：电子罗盘系统的数据处理方法
公开(公告)号：US5828984A
公开(公告)日：1998-10-27
申请号：US131014
申请日：1993-10-01
申请人： Russell E. Cage , Rafi A. Al-Attar
发明人： Russell E. Cage , Rafi A. Al-Attar
IPC分类号： G01C17/38
CPC分类号： G01C17/38
摘要： A method for converting distorted compass data values into corrected data values which employs linear transforms. A linear transform is formulated and programmed into the read only memory of the microcomputer of the electronic compass system. The microcomputer uses the linear transform to transform compass data readings distorted by ferrous metals in the environment of the vehicle into corrected data readings and then uses the corrected data readings to compute headings.
摘要翻译：将失真的罗盘数据值转换为采用线性变换的校正数据值的方法。线性变换被制定并编程到电子罗盘系统的微型计算机的只读存储器中。微型计算机使用线性变换将在车辆环境中的黑色金属扭曲的罗盘数据读数转换为校正数据读数，然后使用校正的数据读数来计算标题。

4. 发明授权

US5353241A Shifting system and method for an electronic compass system 失效
标题翻译：电子罗盘系统的转换系统和方法
公开(公告)号：US5353241A
公开(公告)日：1994-10-04
申请号：US815267
申请日：1991-12-27
申请人： Rafi A. Al-Attar
发明人： Rafi A. Al-Attar
IPC分类号： G01C17/30 , G01C17/38
CPC分类号： G01C17/38 , G01C17/30
摘要： A shifting compensation circuit which employs a ranging circuit having a variable direct voltage source, to compensate for abnormally large vehicle magnetic fields. A ranging circuit is coupled between a microcomputer and a flux-gate. The microcomputer monitors the output of an integrator through a buffer amplifier to minimize variations in the integrator output caused by temperature variations, and directs the variable direct voltage source to add a direct voltage reference, in opposition to the vehicle's magnetic field signal and within the output voltage range of the integrator, to the output signal of the flux-gate, such that the combination of the two signals is within the output voltage range of the integrator for all vehicle headings.
摘要翻译：一种移位补偿电路，其采用具有可变直流电压源的测距电路来补偿异常大的车辆磁场。测距电路耦合在微型计算机和磁通门之间。微型计算机通过缓冲放大器监视积分器的输出，以最小化由温度变化引起的积分器输出的变化，并引导可变直流电压源与车辆的磁场信号相反，并在输出端积分器的电压范围与磁通门的输出信号，使得两个信号的组合在所有车辆标题的积分器的输出电压范围内。

5. 发明授权

US5351204A Scaling system and method for an electronic compass 失效
标题翻译：电子罗盘的缩放系统和方法
公开(公告)号：US5351204A
公开(公告)日：1994-09-27
申请号：US815347
申请日：1991-12-27
申请人： Rafi A. Al-Attar
发明人： Rafi A. Al-Attar
IPC分类号： G01C17/30 , G01C17/38
CPC分类号： G01C17/30 , G01C17/38
摘要： A scaling system and technique which employs an analog-to-digital converter having at least 10-bit accuracy and a ranging circuit to compensate for abnormally large vehicle magnetic fields. The ranging circuit employs variable resistance negative feedback, which enables an electronic compass system to reduce the output voltage of an integrator to within the fixed output voltage range of the integrator. An analog-to-digital converter of at least 10-bit accuracy makes resolution of heading information possible and enhances the accuracy of subsequently performed calibrations.
摘要翻译：一种缩放系统和技术，其采用具有至少10位精度的模数转换器和测距电路来补偿异常大的车辆磁场。测距电路采用可变电阻负反馈，使电子罗盘系统能够将积分器的输出电压降低到积分器的固定输出电压范围内。具有至少10位精度的模数转换器可以使航向信息的分辨成为可能，并提高随后执行的校准的准确性。

6. 发明授权

US5333110A Electronic magnetic compass system and method for interpreting directions of a vehicle 失效
标题翻译：电子磁罗盘系统及解释车辆方向的方法
公开(公告)号：US5333110A
公开(公告)日：1994-07-26
申请号：US815274
申请日：1991-12-27
申请人： Rafi A. Al-Attar
发明人： Rafi A. Al-Attar
IPC分类号： G01C17/30 , G01C17/38
CPC分类号： G01C17/30
摘要： A method and apparatus for interpreting magnetic directions for an electronic compass system mounted on a moving vehicle such as an automobile. The directions of North, Northeast, East, Southeast, South, Southwest, West and Northwest are each assigned predetermined degree ranges which are included in a look-up table used by a controller. The predetermined degree ranges associated with the directions of North, South, East and West are further each set at equal values, while the predetermined degree ranges of Northeast, Northwest, Southeast and Southwest are set equally at a value that is less than the values of the North, South, East and West directions. A flux-gate senses the Earth's magnetic field and generates an analog signal in accordance therewith. The analog signal is converted into a corresponding digital signal by an analog-to-digital converter. The controller receives the corresponding digital signal and converts the digital signal into a degree heading. The controller then compares the degree heading with the eight predetermined degree ranges included in the look-up table and generates a directional heading signal in accordance with the predetermined degree range within which the degree heading falls. A directional heading signal is then output to a visual display and displayed as one of the eight directional headings associated with the eight predetermined degree ranges. The invention thus simplifies the interpretation of heading information generated by an electronic compass system and reduces the chance of driver confusion by interpreting heading information more in accordance with the major geographic directions of North, South, East and West.
摘要翻译：一种用于解释安装在诸如汽车的移动车辆上的电子罗盘系统的磁方向的方法和装置。北，东，东，东南，南，西南，西西北的方向各自被分配预定的程度范围，这些范围包括在控制器使用的查找表中。与北，南，东，西方向相关的预定度范围进一步设定为相等的值，而东北，西北，东南，西南的预定度范围设定为小于北，南，东，西方向。磁通门感测地球的磁场并根据其产生模拟信号。模拟信号由模数转换器转换成相应的数字信号。控制器接收相应的数字信号，并将数字信号转换为度数。然后，控制器将度数标题与包括在查找表中的八个预定度数进行比较，并根据度标题下降的预定程度产生方向标题信号。然后将方向航向信号输出到视觉显示器并显示为与八个预定程度范围相关联的八个方向标题之一。因此，本发明简化了电子罗盘系统产生的标题信息的解释，并且根据北，南，东，西的主要地理方向更多地解释标题信息，减少了驾驶员混淆的机会。

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