Signal receiving apparatus, signal receiving method, signal receiving program and signal receiving system
US8233864B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2011 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J3/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a signal receiving apparatus including: a resonance section configured to receive an input signal at a variable resonance frequency; a signal supplying section configured to supply an electrical signal having a desired reception frequency to the resonance section; a mixture section configured to mix a resonance signal, which is output by the resonance section when the resonance section receives the electrical signal from the signal supplying section, with a switching signal having the desired reception frequency; and a control section configured to change a resonance characteristic of the resonance section and measure the phases of mixed signals output by the mixture section before and after the resonance characteristic changing operation to control the resonance frequency of the resonance section in order to change the resonance frequency in a direction to reduce a difference between the phases of the mixed signals before and after the resonance characteristic changing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.