Burst transfer management system utilizing pointers to ensure that there is enough space in a buffer to receive burst transfers without corrupting data
US6138186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for managing burst data transfers from a sending device to the buffer memory of a receiving device and for managing read operations upon the buffer memory after receiving data. In one arrangement, the system includes data management apparatus that is used in a tape storage device. The data management apparatus uses a Start of Burst pointer, a Current Position pointer and a Tape Mechanism pointer to simplify several functions. These functions include the determination of whether to enable a burst from a sending device and the determination of whether to perform a series of read operations upon the buffer memory. In addition, the Start of Burst pointer and the Current Position pointer are used to re-write a burst into the buffer memory if a previously received burst is determined to be invalid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.