Apparatus, methods and articles of manufacture for signal propagation using unwrapped phase
US7356091B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Jan 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2035
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a system for processing an electromagnetic input signal in which processing circuitry may be used to produce a bounded phase signal, such as by calculating an n-bit 2's compliment number in the range of [−1, 1] from phase sample information for an input wave; and producing an unwrapped phase difference signal from the bound phase signal, such as by taking a 2's compliment subtraction using another wrapped phase signal from previous phase sample information. A corrected phase signal may also be used by taking a 2's complement addition using the bounded phase signal, wherein the unwrapped phase difference signal is produced using the corrected phase signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.