Display system with section addressability

A method for use in a computer in a displaying system where said computer is operatively connected to a bus, and a plurality of display devices are electrically connectible to said bus in a plurality of locations thereon;

• said method comprising the steps of:
• defining geographic areas by grouping ones of said locations;
• receiving a request for changing displays of the display devices connected at the locations in a particular geographic area, the request containing information indicative of a subarea from which said request was originated;
• identifying said geographic area from said information, said subarea being within said particular geographic area;
• and
• transmitting, in response to the request, on said bus at least one message to the display devices located in said particular geographic area so that substantially all of those display devices change to displaying data different from what was previously displayed.

A method for use in a system for displaying information, said system comprising:

• a dongle, a bus comprising a main bus and bus extensions;
• a computer operatively connected to said main bus;
• a plurality of display devices electrically connectible to said bus extensions in a plurality of locations therein;
• and a plurality of appenders each connected with one of said bus extensions and with said computer through said main bus;
• said method comprising the steps of:
• defining geographic areas by grouping ones of said locations;
• electrically connecting said dongle to a particular bus extension in one of said locations in a particular geographic area;
• transmitting a request from said dongle on said particular bus extension for changing displays of the display devices connected in locations in said particular geographic area;
• transmitting a message from a particular appender connected to said particular bus extension after transmission of said request, said message containing an address identifying said particular appender apparatus on said bus;
• receiving by said computer said request and said message;
• identifying by said computer said particular geographic area from said address in said message;
• and
• transmitting by said computer, in response to said request, on said bus at least one message relating to the display devices located in said particular geographic area so that substantially all of those display devices change to displaying data different from what was previously displayed.

A method for use in a system for displaying information, said system comprising:

• a scanner having a radio frequency transmitter, a bus;
• a computer operatively connected to said bus and to a radio frequency receiver;
• and a plurality of display devices electrically connectible to said bus in a plurality of locations therein;
• said method comprising the steps of:
• defining geographic areas by grouping ones of said locations;
• scanning by said scanner first information indicative of a geographic area;
• transmitting a request from said scanner via the radio frequency transmitter, for changing displays of the display devices connected in locations in said particular geographic area, the request containing the first information;
• receiving by said computer said request and said first information;
• identifying by said computer said particular geographic area from said first information in said request;
• and
• transmitting by said computer, in response to the request, on said bus at least one message relating to the display devices located in said particular geographic area so that substantially all of those display devices change to displaying data different from what was previously displayed.