Patents Assigned to 501 Actv, Inc.
  • Patent number: 4918516
    Abstract: A closed circuit interactive television system (10) provides a multichannel television signal from a localized head end (12) which is used for individualized interactive selections by a plurality of users (22, 24, 26). Each user station contains a conventional televison receiver (32a, 32b, 32c) and a smart box or interface and selection device (30a, 30b, 30c). The smart box or interface and selection device (30) is disposed between the television receiver (32) and the RF distribution amplifier (36). The number of user stations (22, 24, 26) on the system (10) is virtually unlimited.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: April 17, 1990
    Assignee: 501 Actv, Inc.
    Inventor: Michael J. Freeman