Signal generating apparatus and method thereof
US7486118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Apr 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1976
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal generating apparatus is disclosed for generating a synthesized signal according to an input signal. The signal generating apparatus includes a phase-locked loop device for generating the synthesized signal; a detecting device for detecting a reference signal to generate a calibrating signal; a filtering device for filtering the input signal and calibrating the input signal according to the calibrating signal to generate a filtered input signal; and a modulating device for modulating the filtered input signal in the normal operation mode and setting the dividing factor according to a first factor setting or a second factor setting in the calibration mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.