| 摘要 |
<p>A method and apparatus for computing frequency of an unknown signal using the number of counts of a high and low frequency reference signal which occur between the leading and trailing edges of the pulse of unknown frequency. Method and apparatus is also described utilizing this technique for application in control processes where it is desired to optimize the process by allowing it run at a faster rate and slowing the process as it approaches the desired steady state or other control point in the process.</p> |
