Signal setter
专利汇可以提供Signal setter专利检索，专利查询，专利分析的服务。并且PURPOSE: To make it possible to set the frequency of a signal automatically without using a mechanical part by adding or subtracting the output of a pulse oscillator to or from the contents of a reversible counter, by comparing an output signal frequency to a set frequency, and by exercising control so that the output frequency will be below the set value.
CONSTITUTION: With increase switch 14 ON, reversible counter 19 is applied with a pulse signal from pulse oscillator 17 and the output of D/A converter 23 increases. The increase speed at that time depends upon the oscillation frequency of pulse oscillator 17, an increase or decrease in speed can be set by frequency setter 18 and comparator 22A checks whether the output signal is within the upper limit of the set value or not. When exceeding the set value, the output value is set to its upper limit value by reversible counter 19 without reference to an input via increase switch 14. With decrease switch 15 ON, the output signal, when exceeding the set value, is similarly set to its lower limit value. Consequently, limit-frequency setting and moving speeds can freely be set without using a mechanical part and automatic frequency setting comes into effect.
COPYRIGHT: (C)1980,JPO&Japio，下面是Signal setter专利的具体信息内容。
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