Receiver with AFC function for operating in soft handover
US8472572B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2007 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Dec 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J7/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A receiver having Automatic Frequency Control (“AFC”) is described having at least one input signal terminal and an offset frequency estimation means for estimating each offset frequency of at least two predetermined input signals inputted at the same time at the input signal terminal. The access to the receiver of each input signal is respectively modulated and identified by a distinct code, and in addition an AFC means is included to perform automatic frequency control of a voltage control oscillator serving as a frequency reference of the receiver. The AFC means described in the present invention is operative to provide a unique compensation command defined as a function of a combination of at least two analytical terms, each term respectively depending on the estimated offset frequency of the corresponding input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.