Optically coupled interface for portable semi-conductor data media

摘要

An optically coupled data interface formed of a host device having apparatus to receive data in optical format, the host device having apparatus to impart optical data initiating signals, a portable module adaptable to interface with the host device and having an optically responsive window adapted to receive optical data initiating signals from the host device and means self-contained in the portable module controlling the optically responsive window to impart data onto optical signals receivable by the host device.