Electronic audience polling system
US4377870A · kind A · utility
191Cited by
9References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | Mar 22, 1983 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C13/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An audience polling system includes a plurality of wireless transmitters, each transmitter capable of transmitting a pulse of electromagnetic energy on a selected one of a group of predetermined frequencies. Each frequency selected on which to transmit corresponds to one of a group of suggested responses to a given stimulus. The polling system includes a receiver for receiving the transmitted pulses and electronic counters for tallying the number of pulses received on each of the selected frequencies. An electronic display presents the results of the tallying for observation by the audience or others.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.