International Business Machines Corporation

Edward Earl Harbour

Gordon Taylor Davis

Laurence Victor Marks

George R Stilwell, Jr

Robert C Lynch

Andre Byungyup Minn

Paul Leppert

Bryan S Stevens

An adapter for providing data communications for a personal computer to other remote data communications systems of various communication platforms is disclosed. The remote data communications systems can be a data circuit terminating equipment (DCE) such as a modem, or a data terminating equipment (DTE) such as an ISDN terminal adapter. The adapter comprises a programmable digital signal processing device, a memory device and an assortment of transceiving devices. A software program is stored in the memory device for instructing the programmable digital signal processing device. The transceiving devices are controlled by the programmable DSP device such that the appropriate transceiving device can be activated for providing data communications, according to the type of communication platform utilized by the remote data communications equipment.

Communications adapter having analog and digital interfaces for communications with remote systems

In a highly modular terminal, pluggable functional units communicate optically through a closed chamber. Some functional units are logically integrated into the terminal structure while being physically remote. In a supermarket system, bar code scanners and produce scales are examples of physically remote functional units. A circuit for interfacing the remote units to the closed chamber uses a broadcast/concentrator mode of operation. A single optical detector broadcasts the extant chamber signals to all of the remote functional units. Signals from the remote units are logically ORed or concentrated to provide a drive signal for a single optical emitter capable of injecting optical energy into the chamber.

Circuit for interfacing remote functional units to a terminal

Growing community of inventors

Cary, NC, United States of America

Edward Earl Harbour