Precise network time transfer
US6985499B2 · kind B2 · utility
59Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2001 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Dec 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0697
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention comprises a method and apparatus for reducing uncertainty in timing on the network. The uncertainty in receive buffers is removed by time stamping the arriving packets before sending the packets to the receive buffer. The uncertainty in the transmission buffer is removed by giving the packets a timestamp in the future, and holding the packets until precisely that time. Time precision is ensured by only releasing time packets at the host physical layer to network boundary at the time specified within the packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.