Apparatuses, systems, and methods for accurately measuring packet propagation delays through USB retimers
US10095653B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0298
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses relating to measuring propagation delays through USB retimers are described. In one embodiment, a retimer apparatus includes a receiver to receive a data block and a timestamp for the data block from an upstream device, a buffer to store the data block and the timestamp for transmittal, a controller to modify the timestamp to generate a modified timestamp that includes a time from a receipt of a first portion of the data block in the buffer until a transmittal of the first portion of the data block from the buffer, and a transmitter to transmit the data block and the modified timestamp to a downstream device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.