Cable network spectral measurement during upstream packet transmission
US9634722B2 · kind B2 · utility
5Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jul 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0858
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and method are provided for obtaining an upstream signal spectrum as it was during a time of transmission of a received upstream data packet. The apparatus includes an analog-to-digital converter (ADC), a packet detector coupled to ADC, and a spectrum calculation unit coupled to the ADC and the packet detector. In operation, the spectrum calculation unit computes a spectrum of the digitized upstream signal as it was between the start and end times of the first packet. As a result, the obtained spectrum is representative of a condition of the transmission path during transmission of the upstream data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.