1
Rand B Nickerson: Real-time wireless audience response system. Viewfacts, Faegre & Benson, July 6, 1993: US05226177 (275 worldwide citation)

A system for collecting data from a plurality of respondents having a central portion with a central processor and a base station and a remote portion with a plurality of wireless response units for respondents to be prompted to enter response data to a visually perceptible display which may be show ...


2
Russell J Welsh, John D Fourdraine: Apparatus and method for automatically monitoring broadcast band listening habits. Viewfacts, Faegre & Benson, September 4, 1990: US04955070 (112 worldwide citation)

An electronic monitor and system for automatically monitoring broadcast band listening habits and periodically collecting data at a central location. The electronic monitor includes a microphone circuit and a tuner circuit. The tuner circuit is tuned until a match is found between the microphone cir ...


3

4
Russel Welsh J: A system and device for data transmission, and related method. Viewfacts, STEFFEY Charles E, September 20, 1990: WO/1990/010988

A system (1) for remotely displaying screen data on televisions (3) or the like transmits screen data over a plurality of commercial radio band carrier transmitters (5). A plurality of devices (13) are provided, each being for use with a corresponding television in a home. Each device includes a ban ...


5
Welsh Russell J, Fourdraine John D: Radio meter. Viewfacts, STEFFEY Charles E, January 11, 1990: WO/1990/000330

An electronic monitor (10) and system for automatically monitoring broadcast band listening habits and periodically collecting data at a central location. The electronic monitor includes a microphone circuit (14) and a tuner circuit (16). The tuner circuit (16) is tuned until a match is found betwee ...


6
Russel Welsh J: A system and device for data transmission, and related method.. Viewfacts, December 18, 1991: EP0461107-A1

A system (1) for remotely displaying screen data on televisions (3) or the like transmits screen data over a plurality of commercial radio band carrier transmitters (5). A plurality of devices (13) are provided, each being for use with a corresponding television in a home. Each device includes a ban ...