Signal quality detector and methods thereof
US5721754A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | May 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A signal quality detector (206) and analogous method thereof for operation on a signal having at least one predetermined frequency, the detector including a symbol detector (209), coupled to the signal, for providing a maximum discrete time Fourier transform value for a time period, the maximum discrete time Fourier transform value corresponding to one of the at least one predetermined frequency, an energy detector (217) for providing an energy estimate corresponding to a energy value of the signal over the time period, and a combinatorial logic (219) for combining the maximum discrete Fourier transform value and the energy estimate to provide a signal quality estimate or signal power or noise power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.