1
William J McKenna, Kenneth W Silvers, Rand B Nickerson, Russell J Welsh, Harold R Walker, Joseph A Cullity, Bohdan Stryzak: Television and market research data collection system and method. Control Data Corporation, Irell & Manella, March 28, 1989: US04816904 (408 worldwide citation)

A data gathering system includes a plurality of remote units which are controlled from a central location. Each of the remote units is attached to a television receiver which is generally but not necessarily attached to a cable system. Each of the remote units can function to determine which of seve ...


2
William J McKenna, Kenneth W Silvers, Rand B Nickerson, Russell J Welsh, Harold R Walker, Joseph A Cullity, Bohdan Stryzak: Television and market research data collection system and method. CTBA Associates, Sherman O Parrett, October 8, 1985: US04546382 (375 worldwide citation)

A data gathering system includes a plurality of remote units which are controlled from a central location. Each of the remote units is attached to a television receiver which is generally but not necessarily attached to a cable system. Each of the remote units functions to determine which of several ...


3
William J McKenna, Kenneth W Silvers, Rand B Nickerson, Russell J Welsh, Harold R Walker, Joseph A Cullity, Bohdan Stryzak: Television and market research data collection system and method. CTBA Associates, Irell & Manella, April 14, 1987: US04658290 (245 worldwide citation)

A data gathering system includes a plurality of remote units which are controlled from a central location. Each of the remote units is attached to a television receiver which is generally but not necessarily attached to a cable system. Each of the remote units can function to determine which of seve ...


4
Harry D Campbell, Kenneth W Silvers, Chang J Kim: Television signal substitution. Bases Burke Institute, Wood Herron & Evans, November 27, 1990: US04974085 (60 worldwide citation)

A received television signal (such as a television commercial) is substituted out in favor of a local recorded signal on a record containing the substitute signal. A detector detects a command signal indicative of a broadcast program signal to be substituted out. An RF switch is operable to selectiv ...