Systems and methods for integrating cellular and location detection functionality using a single crystal oscillator
US8934853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Feb 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure use shared oscillator for cellular communications and location detection in a communication device. The communications device estimates a frequency offset of one of its subsystems. The communications device determines a frequency offset that results from drifting of this shared oscillator, typically caused by aging and/or changes in temperature, voltage, humidity, pressure, and/or vibration to provide some examples, from the frequency offset this subsystem. The communications device provides various compensation parameters to its various subsystems to compensate for the frequency offset that results from drifting of the oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.