Method and apparatus for adapting a receiver frequency plan according to location
US7683829B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Mar 14, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A selectable frequency source for use in GPS receivers. A device in accordance with the present invention comprises a reference frequency source, a first divider, coupled to the reference frequency source, the first divider having a first dividing factor, a first mixer, coupled to the first divider, a filter, coupled to the first mixer, a voltage controlled oscillator, coupled to the filter, a second divider, coupled between the voltage controlled oscillator and the first mixer, the second divider having a second dividing factor, and a second mixer, coupled to an output of the voltage controlled oscillator, for mixing a GPS signal with the output of the voltage controlled oscillator, wherein at least one of the first dividing factor and the second dividing factor is changed to change a frequency output of the voltage controlled oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.