Receiver and electronic apparatus
US7733986B2 · kind B2 · utility
3Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2006 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Apr 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A receiver has a receiving unit including a PLL, a mixer, and a filter, and demodulating unit including a frequency error detector for detecting a frequency error in a signal from a filter. The PLL includes a local oscillator for supplying a local oscillation signal to a mixer, a variable frequency divider for frequency-dividing the local oscillation signal based on a signal from the frequency error detector, and a phase comparator for comparing a signal from the variable frequency divider with a signal from a crystal oscillator. The PLL can reduce the frequency error of the local oscillation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.