Switching device using buffering
US10289587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A crossbar switch comprises two or more data inputs 10, two or more data outputs 100, a buffer 30 between the inputs and the outputs, an arbiter 52 associated with each output and configured to select data from one of the inputs when there is contention at the output, a bypass 32 associated with the buffer so that the buffer can be enabled or disabled, and a buffer controller 60 configured to enable or disable the buffer. The buffer controller further includes an accumulator 70 configured to assess whether a time-based average of the contention rate, or an average injection rate, at the output associated with the buffer, has reached a predetermined threshold. This prevents the buffer being enabled when the contention is only intermittent, which reduces power consumption without significant loss of performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.