Data storage method and apparatus with adaptive buffer threshold control based upon buffer's waiting time and filling degree of previous data transfer
US5412780A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1992 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Apr 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device for reading and/or writing data to a storage medium includes a buffer memory (15) for smoothing the flow of data to/from the storage medium. Activation of the storage apparatus (9) to read/write data from/to the storage medium is generally controlled in dependence upon the amount of data held in the buffer (13). In order to optimize utilization of the buffer (15), it is proposed to adaptively set the threshold level at which such activation is effected. To this end, the utilization of the buffer (13) during a previous activation is monitored and a new threshold value is set in dependence on the monitored utilization parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.