Audience response system

Details Audience response system Audience response system

1974-04-10

1976-03-16

Pinkham, Richard C.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

35 48R, 179 2AS, 340332, G09B 500

Patent

active

039436411

ABSTRACT:
An audience response system includes a console having a plurality of pairs of lamps in which one lamp of each pair is grouped with corresponding ones of the lamps of the other pairs. The system also includes a plurality of switches, each for controlling the lighting of a different pair of lamps, and a plurality of timers, each of which is activated by a different one of the switches. When a particular one of the lamps of a pair is lighted by the associated switch, then the corresponding timer is also activated, and when the other lamp of the pair is lighted, the corresponding timer is deactivated. An additional switch is provided to activate an additional timer and deactivate the plurality of timers.

REFERENCES:
patent: 2712976 (1955-07-01), Blaustein et al.
patent: 3119558 (1964-01-01), Kinross
patent: 3190014 (1965-06-01), Rhodes
patent: 3318517 (1967-05-01), Wells
patent: 3716929 (1973-02-01), Barrabas
patent: 3744712 (1973-07-01), Papadopoulos et al.
patent: 3748754 (1973-07-01), Le Berge
patent: 3826871 (1974-07-01), Kraemer

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