Precise frequency generation for low duty cycle transceivers using a single crystal oscillator
US7421251B2 · kind B2 · utility
66Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Nov 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L1/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for calibrating a non-crystal oscillator in a transceiver unit using a crystal-oscillator includes the step of establishing a time base based upon oscillations of the crystal oscillator. A comparison of the number of oscillations for the non-crystal oscillator and the crystal oscillator is made during a known time period is made. An adjustment is determined based upon the established time base and the compared number of oscillations. The transceiving of the transceiver unit is then controlled based upon this adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.