초록 ▼

A card reader/writer which interfaces between a host application program and a data storage card. The card reader/writer reads from and writes to the application program with high level language of the commands. The card reader/writer translates the high level language commands of the host program t

A card reader/writer which interfaces between a host application program and a data storage card. The card reader/writer reads from and writes to the application program with high level language of the commands. The card reader/writer translates the high level language commands of the host program to corresponding sequences of low level commands for reading and writing to the data storage card. The card reader/writer stores a plurality of sets of such low level commands, and is able to establish the card type for any card interfaced with the card reader/writer, and to use the appropriate command set for the established card type. The card reader/writer also translates low level commands from the card to high level commands for the host application program. The card reader/writer can be loaded with low level command sets for additional card types as required.

대표청구항 ▼

[ What is claimed is:] [1.]1. A card reader/writer which interfaces a host application program with a data storage card having an associated card application, characterised in that:said card reader/writer can respond to said host application program using at least one designated high level language,

[ What is claimed is:] [1.]1. A card reader/writer which interfaces a host application program with a data storage card having an associated card application, characterised in that:said card reader/writer can respond to said host application program using at least one designated high level language,a plurality of lower level protocol sets are stored which correspond to a plurality of different data storage card applications,said card reader is able to identify from the card the particular card application for any card interfaced to it for which it has a protocol set, and select from its store of protocols the appropriate lower level protocol for the identified card application,said card reader/writer reads and translates high level language commands from the host program to corresponding commands within said established lower level protocol and writes these lower commands to said card,and said card reader/writer reads commands or data in said established lower level protocol from said card translates them to corresponding commands or data in said high level language and writes these commands or data to said host application program.