Single timestamp engine for generating timing information for inclusion in packets complying with multiple networking protocols
US8837473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Sep 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packets of various protocols may contain timestamps generated by a single timestamp engine. In one embodiment, packets of two different protocols, which are referred to as Protocols A and B for simplicity, contain timestamps generated by the same Protocol B timestamp engine. In order to cause a Protocol B timestamp engine to produce a timestamp for a Protocol A packet, information can be provided to the Protocol B timestamp engine indicating that the Protocol A packet is a packet of Protocol B. The information can be provided by an internal header appended to the Protocol A packet that effectively misidentifies the Protocol A packet as a Protocol B packet. As a result, the Protocol B timestamp engine generates and inserts a timestamp for the Protocol A packet as if it were a Protocol B packet. The Protocol A packet, now including the timestamp, can be output or further processed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.