发明名称 |
Coherent demodulation with reduced latency adapted for use in scanning probe microscopes |
摘要 |
A signal demodulator and the method of using the same in a scanning probe microscope or the like to provide a feedback path with reduced latency are disclosed. The demodulator includes an input port, a first mixer and a first integrator. The input port receives an input signal having a frequency component at a signal frequency. The input signal is characterized by a signal amplitude at that frequency. The first mixer mixes the input signal with a first local oscillator signal at the signal frequency to generate a first mixed signal. The first integrator integrates the first mixed signal for an integer number of periods of the signal frequency to provide a first output signal. |
申请公布号 |
US7843627(B2) |
申请公布日期 |
2010.11.30 |
申请号 |
US20080324042 |
申请日期 |
2008.11.26 |
申请人 |
AGILENT TECHNOLOGIES, INC. |
发明人 |
ABRAMOVITCH DANIEL Y. |
分类号 |
G02F2/00 |
主分类号 |
G02F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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