Tracking a relative arrival order of events being stored in multiple queues using a counter
US9141569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | May 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2209/548
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An order controller stores each received event in a separate entry in one of at least two queues with a separate counter value set from an arrival order counter at the time of storage, wherein the arrival order counter is incremented after storage of each of the received events and on overflow the arrival order counter wraps back to zero. The order controller calculates an absolute value of the difference between a first counter value stored with an active first next entry in a first queue from among the at least two queues and a second counter value stored with an active second next entry in a second queue from among the at least two queues. The order controller compares the absolute value with a counter midpoint value to determine whether the first counter value was stored before the second counter value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.