公开(公告)号：US20050002103A1

公开(公告)日：2005-01-06

申请号：US10855124

申请日：2004-05-27

申请人： Jon Bechtel ,  Frederick Bauer ,  Joseph Stam ,  Robert Knapp ,  Robert Turnbull ,  David Schmidt ,  G. Poe ,  David Plangger ,  Robert Nixon ,  Eric Fossum ,  Timothy Steenwyk

发明人： Jon Bechtel ,  Frederick Bauer ,  Joseph Stam ,  Robert Knapp ,  Robert Turnbull ,  David Schmidt ,  G. Poe ,  David Plangger ,  Robert Nixon ,  Eric Fossum ,  Timothy Steenwyk

IPC分类号： G01J1/02 ,  B60H1/00 ,  B60H1/26 ,  B60H1/34 ,  B60Q1/02 ,  B60Q1/08 ,  B60Q1/14 ,  B60R1/04 ,  B60R1/08 ,  B60R16/027 ,  B60S1/08 ,  G01J1/16 ,  G01J1/46 ,  H01L31/10 ,  G02B5/08

CPC分类号： G01J1/1626 ,  B60Q1/1423 ,  B60Q2300/052 ,  B60Q2300/054 ,  B60Q2300/112 ,  B60Q2300/312 ,  B60Q2300/314 ,  B60Q2300/337 ,  B60Q2400/30 ,  B60R1/088 ,  G01J1/46

摘要： Equipment on automotive vehicle is controlled by a system including at least one semiconductor light sensor having variable sensitivity to light. Each light sensor generates a light signal indicative of the intensity of light incident on the light sensor. Control logic varies the sensitivity of the light sensor and generates equipment control signals based on received light signals. Sensitivity of light sensors may be varied by changing the integration time for producing charge from light incident on light transducers, by selecting between light transducers of different sensitivity within the light sensor, by using a light transducer with a sensitivity that is a function of the amount of incident light, and the like. Controlled equipment includes devices such as automatically dimming rearview mirrors, headlamps, and moisture removal means.

摘要翻译： 机动车辆上的设备由包括至少一个具有对光敏感度可变的半导体光传感器的系统控制。 每个光传感器产生指示入射在光传感器上的光的强度的光信号。 控制逻辑改变光传感器的灵敏度，并根据接收到的光信号产生设备控制信号。 光传感器的灵敏度可以通过改变从入射到光换能器上的光产生电荷的积分时间，通过使用具有灵敏度的光传感器在光传感器内选择不同灵敏度的光换能器来改变灵敏度 的入射光等。 受控设备包括诸如自动调光后视镜，前照灯和除湿装置的装置。

公开(公告)号：US4582434A

公开(公告)日：1986-04-15

申请号：US602844

申请日：1984-04-23

申请人： David Plangger ,  Wayne K. Wilson

发明人： David Plangger ,  Wayne K. Wilson

IPC分类号： G04G5/00 ,  G04G7/02 ,  G04C11/02

CPC分类号： G04R20/16 ,  G04R40/00

摘要： Time referenced RF signals are periodically received and processed for updating a microprocessor-controlled clock. The clock automatically scans several frequencies at which the coded RF timing signals are transmitted, selecting the strongest received signal for synchronization therewith and causes a capture LED to be illuminated upon detection of a sufficiently strong signal at the beginning of a minute tone at one of the received frequencies. The microprocessor periodically determines the timing difference between an internal timer and the received RF timing signals. A time difference correction is provided to a digital-to-analog converter which provides an appropriate voltage to a varactor diode in a crystal oscillator circuit for adjusting the microprocessor's operating frequency until it can no longer resolve a difference between the received RF timing signals and its internal timer. This permits highly accurate clock operation in between the periodic reference time updates and eliminates cumulative time error. Manual switches are provided for correcting for received signal propagation delay and for selecting the appropriate time zone as well as for allowing for daylight saving time and UTC.sub.1 correction. In addition, the microprocessor-controlled crystal oscillator ensures accurate time-keeping when the transmitted RF timing signals are too weak for clear reception.

摘要翻译： 定时接收和处理参考时间的RF信号，以更新微处理器控制的时钟。 时钟自动扫描发送编码的RF定时信号的几个频率，选择最强的接收信号以与其同步，并且在检测到在其中一个的一个时刻的微调音的开始处检测到足够强的信号时，使得捕获LED被点亮 接收频率。 微处理器周期性地确定内部定时器和接收的RF定时信号之间的定时差。 将时差校正提供给数模转换器，其向晶体振荡器电路中的变容二极管提供适当的电压，以调整微处理器的工作频率，直到其不再能够解决所接收的RF定时信号与其之间的差异 内部定时器 这允许在周期性参考时间更新之间进行高度精确的时钟操作并消除累积时间误差。 提供手动开关用于校正接收信号传播延迟并选择适当的时区以及允许夏令时和UTC1校正。 此外，微处理器控制的晶体振荡器在传输的RF定时信号太弱而无法清晰接收时，可以确保准确的计时。