73839057
Nov 14, 1989
Feb 5, 1991
DEVICES FOR THE TRANSMISSION OF DATA VIA ELECTRIC SUPPLY LINES, IN PARTICULAR TWO-WAY COMMUNICATION DEVICES FOR TRANSMITTING AND RECEIVING MODULATED DIGITAL SIGNALS BY MEANS OF ELECTRIC AND/OR ELECTRONIC COMPONENTS, NAMELY, CODING AND DECODING CIRCUITS, MICROCOMPUTERS, INTEGRATED CIRCUITS, SEMICONDUCTOR MEMORIES, DISPLAYS, AND SIGNAL PANELS; TWO-WAY COMMUNICATION DEVICES WITH INPUT AND OUTPUT FUNCTIONS IN THE MANNER OF RELAYS, ANALOG AND/OR DIGITAL INPUTS AND OUTPUTS, RESPECTIVELY; PARALLEL AND SERIAL INTERFACE CONNECTIONS; ASSEMBLIES OF INTEGRATED CIRCUITS AND BOARDS WITH SUCH ASSEMBLIES FOR INSTALLATION IN TWO-WAY COMMUNICATION DEVICES; AND STORAGE MEDIA, NAMELY, SEMICONDUCTOR MEMORIES CONTAINING PROGRAMS FOR CONTROLLING TWO-WAY COMMUNICATION DEVICES
Electrical and Scientific Apparatus