Data transferring system reading and temporarily storing a record until a length of the record is different from a defined record length parameter value
US6112261A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0655
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data transfer methods and systems are described. The methods and systems permit the transferring of data which is organized into a plurality of records from a readable data storage medium to a host system with reductions in overhead and processing complexity. In a preferred embodiment, the readable data storage medium comprises a tape drive and the records have variable lengths. A data transfer processor is provided and is operably configured for coupling between the host system and the tape drive. A first record length parameter value is defined and describes a length of at least one record which is to be transferred from the tape drive to the host system. A first record having a length corresponding to the first record length parameter value is read from the tape drive and into a temporary record-holding location. Reading of additional records from the tape drive continues until a record is read having a length which is different from the length of the first-defined record length parameter value. In one aspect, the reading of the records is discontinued and records stored in the temporary record-holding location having lengths corresponding to the record length parameter value ar…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.