Electronic tour guide system

Details Electronic tour guide system Electronic tour guide system

1978-06-19

1979-07-31

Stewart, David L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

179 82, 250199, H04J 308, H04B 900

Patent

active

041631234

ABSTRACT:
An electronic tour guide system is disclosed which provides messages about exhibits in a museum or the like to visitors carrying portable receivers. Audio sources which generate various messages are provided at a central location which are multiplexed and digitized and applied to one or more cables which extend to the covered areas. Receiver-transmitters are located along the cables and are adapted to decode one of the messages and transmit the same via infrared energy into a well defined area adjacent the exhibit, enabling a visitor having a receiver to receive the infrared radiated signal information and hear the message.

REFERENCES:
patent: 3529089 (1970-09-01), Davis
patent: 3598923 (1971-08-01), Turner
patent: 3927316 (1975-12-01), Citta
patent: 3934202 (1976-01-01), Missale
patent: 4091272 (1978-05-01), Richter

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