Distributed packet-based timestamp engine
US8571014B2 · kind B2 · utility
9Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2011 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0852
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system handles timing information within a packet-switched network. The system classifies packets for processing depending on the packet type. After classification, a new timestamp value may be produced depending on the packet classification. The new timestamp value may use a timestamp value from the received packet, a value from a local clock, and an offset value. The timestamp value may be written into the packet, depending on the packet classification, and checksum-type fields may additionally be updated in the packet. In some embodiments, multiple physical layer circuits are integrated with a local clock circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.