System, apparatus and method for granting access to a shared communications bus
US8135893B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/417
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems, apparatuses and methods for timing access to a shared communications bus by a plurality of devices. Each of a plurality of nodes is successively provided an opportunity to gain access to a shared bus according to a time slot allocation referenced from a time reference. The successive time slot allocation occurs until one of the nodes has a message to send via the shared bus. The node that has the message to send transmits a frame onto the bus. A new time reference is established at each of the nodes based on an indication provided by the transmitted frame, whereby each of the nodes can then be afforded a new opportunity to gain access to the shared bus according to the time slot allocation referenced from the new time reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.