Method and apparatus for generating reference transmission signal for use in testing communications receivers
US7457995B1 · kind B1 · utility
2Cited by
11References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 2, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Oct 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating a reference transmission signal for use in testing a communications system. A data packet transmission signal containing a plurality of reference data is captured and digitized, following which reference data is retrieved. The retrieved data is used to modulate a carrier signal to produce a digital transmission signal, which is stored for later use, such that impairments in a signal from a traditional trusted unit are substantially removed, thereby minimizing uncertainty during later testing using such signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.