发明名称 |
Servo control with self calibrating preset |
摘要 |
A frequency input for receiving a frequency signal and digital storing for storing the received frequency signal. A controller has a first and second input and an output. The first input is connected to the digital storage for providing a reference signal and the output provides a frequency control signal. The second input is connected to circuitry for changing the operation mode of the controller to either an amplifier or an integratory. As an amplifier, a digitally set offset and gain is applied to the amplifier for providing an output generating approximately the frequency of a prior signal. A switch connects the frequency output to the second input when operating in the integrating mode to control the output for generating a desired frequency.
|
申请公布号 |
US4982195(A) |
申请公布日期 |
1991.01.01 |
申请号 |
US19880266549 |
申请日期 |
1988.11.03 |
申请人 |
TIDELAND SIGNAL CORPORATION |
发明人 |
OLIVENBAUM, JAMES E.;FISCHER, MARK C. |
分类号 |
G01S7/40;G01S13/76;H03L7/14 |
主分类号 |
G01S7/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|