Moisture sensor and windshield fog detector
    62.
    发明授权
    Moisture sensor and windshield fog detector 失效
    水分传感器和挡风玻璃雾探测器

    公开(公告)号:US06495815B1

    公开(公告)日:2002-12-17

    申请号:US09878799

    申请日:2001-06-12

    IPC分类号: H01L2700

    摘要: A system for automatically detecting moisture on the windshield of a vehicle includes an optical system for imaging a portion of the windshield on to an image array sensor, such as a CMOS active pixel sensor. The voltage of each of the pixels which represents the illumination level is converted to a corresponding gray scale value by an analog digital converter. The gray scale values corresponding to the image are stored in memory. The spatial frequency composition of the gray scale values is analyzed to determine the amount of rain present in order to provide a control signal to control the operation of the windshield wipers of the vehicle as a function of the amount of moisture present. The system is also adapted to detect the level of fog both on the interior of the windshield as well as the exterior of the windshield. By providing a system for automatically detecting the presence of fog on the interior and exterior of the windshield, serious performance limitations of known automatic rain sensors are eliminated.

    摘要翻译: 用于自动检测车辆挡风玻璃上的水分的系统包括用于将挡风玻璃的一部分成像到诸如CMOS有源像素传感器的图像阵列传感器上的光学系统。 表示照明电平的每个像素的电压通过模拟数字转换器转换成相应的灰度值。 与图像对应的灰度值存储在存储器中。 分析灰度值的空间频率组成以确定存在的雨量,以便提供控制信号,以控制车辆的挡风玻璃刮水器的操作作为存在的水分量的函数。 该系统还适用于在挡风玻璃的内部以及挡风玻璃的外部上检测雾的水平。 通过提供用于自动检测挡风玻璃内部和外部的雾的系统,消除了已知的自动雨水传感器的严重性能限制。

    Control circuit for image array sensors
    63.
    发明授权
    Control circuit for image array sensors 有权
    图像阵列传感器控制电路

    公开(公告)号:US06469739B1

    公开(公告)日:2002-10-22

    申请号:US09448364

    申请日:1999-11-23

    IPC分类号: H04N5335

    摘要: A control system for controlling an image array sensor and controlling communication between the image array sensor and a microcontroller by way of a serial communication interface. The control system is able to efficiently control various aspects of the image array sensor such as windowing, mode of operation, sensitivity as well as other parameters in order to reduce the data throughput. An important aspect of the invention relates to the fact that the control circuit can be rather easily and efficiently configured in CMOS with relatively few output pins which enables the control circuit to be rather easily and efficiently integrated with CMOS based image array sensors and even the microcontroller to reduce the part count and thus, the overall cost of the system.

    摘要翻译: 一种用于控制图像阵列传感器并通过串行通信接口控制图像阵列传感器和微控制器之间的通信的控制系统。 控制系统能够有效地控制图像阵列传感器的各个方面,如窗口,操作模式,灵敏度以及其他参数,以减少数据吞吐量。 本发明的一个重要方面涉及这样一个事实:控制电路可以相当容易且有效地配置在具有相对较少的输出引脚的CMOS中,这使得控制电路能够相对容易且有效地与基于CMOS的图像阵列传感器甚至微控制器 减少部件数量,从而减少系统的总体成本。

    Electrochromic rearview mirror incorporating a third surface metal reflector and a display/signal light
    64.
    发明授权
    Electrochromic rearview mirror incorporating a third surface metal reflector and a display/signal light 有权
    具有第三表面金属反射器和显示器/信号灯的电致变色后视镜

    公开(公告)号:US06356376B1

    公开(公告)日:2002-03-12

    申请号:US09311955

    申请日:1999-05-14

    IPC分类号: G02F1153

    摘要: An electrochromic mirror is disclosed for use in a vehicle rearview mirror assembly having a light source positioned behind the electrochromic mirror for selectively projecting light through the mirror. The electrochromic mirror includes front and rear spaced elements each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber, a layer of transparent conductive material disposed on the rear surface of the front element, at least one solution-phase electrochromic material contained within the chamber, and a second electrode overlying the front surface of the rear element in contact with the electrochromic material. The second electrode includes a layer of reflective material and a coating of electrically conductive material that is at least partially transmissive and is disposed over substantially all of the front surface of the rear element. The second electrode further includes a region in front of the light source that is at least partially transmissive. The electrically conductive coating may include a single transparent layer or a plurality of partially reflective and transmissive layers, or an electrically conductive dichroic coating. The light source may be an information display, such as a compass/temperature display as used in an inside rearview mirror, or may be a signal light as used in an outside rearview mirror.

    摘要翻译: 公开了一种用于车辆后视镜组件中的电致变色镜,其具有位于电致变色镜后面的光源,用于选择性地将光投射通过反射镜。 电致变色镜包括前后分隔的元件,每个元件具有前表面和后表面,并且以间隔开的关系密封地结合在一起,以限定室,设置在前元件的后表面上的透明导电材料层,至少一个 包含在室内的溶液相电致变色材料,以及覆盖与电致变色材料接触的后部元件的前表面的第二电极。 第二电极包括反射材料层和导电材料涂层,其至少部分透射并且设置在后部元件的基本上所有的前表面上。 第二电极还包括至少部分透射的在光源前面的区域。 导电涂层可以包括单个透明层或多个部分反射和透射层或导电二向色涂层。 光源可以是诸如在内侧后视镜中使用的罗盘/温度显示器的信息显示器,或者可以是在外部后视镜中使用的信号灯。

    Power supply for electrochromic mirrors in high voltage automotive power systems
    65.
    发明授权
    Power supply for electrochromic mirrors in high voltage automotive power systems 有权
    高压汽车电源系统中电致变色镜的电源

    公开(公告)号:US06262831B1

    公开(公告)日:2001-07-17

    申请号:US09426794

    申请日:1999-10-22

    IPC分类号: G02B115

    CPC分类号: B60R1/088

    摘要: A rearview mirror assembly is disclosed including a housing adapted to be mounted to the vehicle, a mirror disposed in the housing, at least one electrically powered device disposed in the housing, and a power supply for receiving power from a vehicle power source having a voltage in excess of about 24 V and for supplying power at a voltage of about 5 V or less to the electrically powered device. The electrically powered device and the power supply exhibit an electromagnetic interference level of less than about 41 dB&mgr;V/m for emissions in the frequency range from about 0.4 MHz to about 20 MHz. The mirror is preferably an electrochromic mirror, and the electrically powered device may be a control circuit for the electrochromic mirror.

    摘要翻译: 公开了一种后视镜组件,其包括适于安装到车辆的壳体,设置在壳体中的反射镜,设置在壳体中的至少一个电动设备,以及用于从具有电压的车辆电源接收电力的电源 超过约24V,并且用于向电动设备供电约5V或更低的电压。 对于在约0.4MHz至约20MHz的频率范围内的发射,电力设备和电源对于小于约41dBmuV / m的电磁干扰电平。 反射镜优选为电致变色镜,电动装置可以是用于电致变色镜的控制电路。