Packet transmission device, memory control circuit, and packet transmission method
US8737227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2012 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Sep 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/527
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet transmission device includes a buffer stores packet data in any of queues, a queue manager outputs queue-status signals indicating whether or not transmittable packet data exists in the corresponding one of the queues, a bandwidth controller outputs token-status signals indicating whether or not an amount of the tokens accumulated at a certain period for the corresponding queue is larger than a token threshold provided for the corresponding queue, a queue selector preferentially selects any queue whose duration time of a transmittable state in which the corresponding queue status signal indicates that transmittable packet data exists in the corresponding queue and the corresponding token-status signal indicates that the amount of the accumulated tokens is larger than the token threshold provided for the corresponding queue is greater than a duration-time threshold provided for the corresponding queue, and a buffer reader controls reading of the packet data from the selected queue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.