Patents Assigned to Gemstar Developement Corporation
  • Patent number: 5515173
    Abstract: A system capable of automatically recording television programs broadcast on different cable television channels. The system includes a cable box, a video recorder and a cable programmer. The consumer enters sets of channel, date, time-of-day and length commands ("CDTL information") or compressed codes representative of such sets of commands into the video recorder. From each set of commands, subsets of date, time-of-day and length ("DTL information") are stored in the video recorder's memory. At the same time or shortly thereafter, a subset of channel, date and time-of-day commands ("CDT information") from the same set of commands is transmitted to the cable programmer. The cable programmer and video recorder have independent control circuits the control certain aspects of the recording process according to the subsets of commands stored in their memories.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: May 7, 1996
    Assignee: Gemstar Developement Corporation
    Inventors: Roy J. Mankovitz, Henry C. Yuen