System including circuitry providing multiple circuit paths for controlling a characteristic of a period signal
US8513995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jul 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
System and method providing multiple circuit paths to control characteristics of periodic signals. In one embodiment first and second detector signals are indicative of a phase and frequency differences between the output signal and a reference signal. A first input signal based on the first detector signal adjusts the phase difference. A first control signal based on the second detector signal has frequency content in high and low frequency ranges. A second input signal based on the control signal reduces the frequency difference. A second control signal based on the second detector signal has relatively low frequency content in the high frequency range. A third input signal based on the second control signal reduces the frequency difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.