System and method for tuning a frequency synthesizer
US7388437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2006 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jul 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0891
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus for generating an output signal having a particular frequency includes an oscillator, a first tuning module, and a second tuning module. The oscillator generates an output signal associated with an output frequency. When coupled to the oscillator, the first tuning module is capable of inducing, within a first amount of time, a change in the output frequency of a particular magnitude. When coupled to the oscillator, the second tuning module is capable of inducing, within a second amount of time, a change in the output frequency of the same magnitude. The second amount of time is greater than the first amount of time. The selector couples a selected one of the first tuning module and the second tuning module to the oscillator based on a difference between a frequency-divided version of the output signal and a reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.