Dual-port testing of a cable network
US9774847B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 20, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | May 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dual-port testing apparatus is provided for testing a cable network at two test points. The testing may comprise demodulation of a same data packet at the test points, decoding the data packet, performing spectral analysis of the signal, etc. Testing results may be correlated with one another, both visually and by using pre-defined test metrics comprising a weighted sum of demodulation and decoding parameters such as modulation extinction ratio and a codeword error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.