Apparatus and method for timestamping of data packets
US10848257B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for timestamping data packets are provided. The apparatus includes an input bit counter responsive to input bits entering a physical layer (PHY) device and an output bit counter responsive to output bits transmitted by the PHY device. A timestamp for an incoming bit is calculated based on a number of bits awaiting transmission by the PHY device at the time of arrival of the incoming bit. The number of bits awaiting transmission by the PHY device is determined based on the first count and the second count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.