Logarithmic detectors
US7911235B2 · kind B2 · utility
17Cited by
3References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Oct 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D11/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a logarithmic detector comprising: an amplifier element; means for setting a frequency of operation of the detector; and a controller, wherein an input signal to the amplifier element is arranged to cause an oscillation in the amplifier element, and the controller is operable to sense a pre-determined threshold, indicative of oscillation and, in response to sensing said threshold, to interrupt the oscillation of the amplifier such that the frequency of said interruption is proportional to the logarithm of the power of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.