Radio wave reception device, radio wave clock
US7835714B2 · kind B2 · utility
1Cited by
36References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2009 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3068
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A received low-frequency standard radio wave, which is an amplitude modulation signal, is converted to an intermediate frequency signal Sa, and is output to a detection circuit and an AGC circuit. The detection circuit and AGC circuit generates an RF control signal Sf1 and IF control signal Sf2 from the input intermediate frequency signal Sa, and controls an RF control circuit and IF control circuit by outputting the generated RF control signal Sf1 and IF control signal Sf2 to the RF control circuit and IF control circuit. By this a radio wave reception device can speed up AGC operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.