Data buffering based on priority tagging of input data
US8122169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2010 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data buffer device includes: a tag value generation circuit that generates a tag value; a first buffer that stores first priority data; a second buffer that stores second priority data; and a data output circuit that outputs the first priority data or the second priority data, wherein the tag value generation circuit sets a tag value for the following second input data to a second tag value which differs from a first tag value for second preceding input data, and sets a tag value of the following first input data to a fourth tag value that is the same as a third tag value for the first preceding input data, and wherein the data output circuit outputs the first priority data or the second priority data in a first mode based on the tag values and outputs the first priority data earlier in a second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.