Frequency acquisition system
US6803827B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency acquisition system for a tunable oscillator is provided that generally includes a frequency-locked loop circuit including a detector system, responsive to the frequency of an output signal of a tunable oscillator and the frequency of a reference signal, to provide a digital output signal representative of a difference in frequency between the output signal and the reference signal, a register circuit for storing a value representative of the present control state of the tunable oscillator; and an accumulator circuit responsive to a value representative of the present control state of the tunable oscillator and to the digital output signal for providing an updated value for adjusting the frequency of the tunable oscillator towards the frequency of the reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.