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    • 5. 发明授权
    • Method of measurement and compensation of an inaccurate clock signal
    • 不准确的时钟信号的测量和补偿方法
    • US5915108A
    • 1999-06-22
    • US885408
    • 1997-06-30
    • Michael James FreyR. Brooks ReedCharles Stuart Tosch
    • Michael James FreyR. Brooks ReedCharles Stuart Tosch
    • G01R23/10F02P7/077G04G3/02G06F1/10G06F1/04
    • G04G3/02F02P7/0775
    • A method for determining the actual frequency of an inaccurate clock signal then using the actual frequency to generate a compensation factor to correct calculations using the clock signal. The method includes counting the number of clock pulses in the clock signal over a predetermined and programmable period of time, and based on the clock pulse count, determining the actual frequency of the clock signal. Once the actual frequency of the clock signal is determined, this value is used to generate the compensation factor based on the expected or rated frequency of the clock signal to compensate for the calculations using the clock signal. The method has a particular application for use in a powertrain control module incorporating a low frequency resonator and a high frequency system clock, where the resonator generates an inaccurate clock signal which is highly stable for short periods of time and the system clock is relatively stable over long term but suffers from short term jitter.
    • 一种用于确定不准确时钟信号的实际频率的方法,然后使用实际频率来产生补偿因子以使用时钟信号来校正计算。 该方法包括在预定和可编程的时间段内对时钟信号中的时钟脉冲数进行计数,并且基于时钟脉冲计数,确定时钟信号的实际频率。 一旦确定了时钟信号的实际频率,则该值用于根据时钟信号的预期或额定频率产生补偿因子,以补偿使用时钟信号的计算。 该方法具有用于包含低频谐振器和高频系统时钟的动力系控制模块中的特定应用,其中谐振器产生在短时间内高度稳定的不准确的时钟信号,并且系统时钟相对稳定 长期但遭受短期抖动。
    • 10. 发明授权
    • Method of soldering metallic terminals
    • 金属端子焊接方法
    • US06722558B2
    • 2004-04-20
    • US10209180
    • 2002-07-31
    • Dean SmithJames FreyRichard KiddAndreas Herrmann
    • Dean SmithJames FreyRichard KiddAndreas Herrmann
    • B23K1005
    • B23K1/0016B23K1/0056B23K2101/38H01R43/0221
    • A system and method of joining together first and second electric terminals includes providing the second terminal with an aperture extending therethrough and a notch therein. The first and second terminals are positioned in overlapping relationship with one another so the aperture overlaps the first terminal to provide access to the first terminal through the second terminal, and so the notch overlaps the first terminal. Heat is applied to the first terminal through the aperture in the second terminal to heat the first and second terminals. The end of a solder wire is positioned in engagement with the notch of the heated second terminal to locate the solder wire with respect to the terminals and to melt the solder wire to form a solder pool that contacts the first and second terminals.
    • 将第一和第二电端子连接在一起的系统和方法包括向第二端子提供延伸穿过其中的孔和在其中的凹口。 第一端子和第二端子彼此重叠地定位,因此孔径与第一端子重叠以提供通过第二端子到达第一端子的接触,因此凹口与第一端子重叠。 通过第二端子中的孔将热量施加到第一端子,以加热第一和第二端子。 焊丝的端部定位成与加热的第二端子的凹口接合,以相对于端子定位焊丝,并熔化焊丝以形成接触第一和第二端子的焊料池。