Patents by Inventor Kamal Ali

Kamal Ali has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20020199186
    Abstract: A system and method for making program recommendations to users of a network-based video recording system utilizes expressed preferences as inputs to collaborative filtering and Bayesian predictive algorithms to rate television programs using a graphical rating system. The predictive algorithms are adaptive, improving in accuracy as more programs are rated.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 26, 2002
    Inventors: Kamal Ali, Wijnand Van Stam
  • Patent number: 5822312
    Abstract: A repeater for a multibeam communications satellite combines the features of coaxial channel interbeam switching and subchannelization of some of the channels. In one embodiment described, the input radio-frequency signals from the input beams are fed through the input multiplexers to form channels. Some, but not all, channels are subsequently subchannelized for interbeam switching. In another embodiment of the invention, a portion of the incoming radio frequency signals bypasses the input demultiplexer and is filtered for noise-limiting reasons, converted down to an intermediate frequency and then subchannelized using SAW filters. The specification also teaches that digital techniques can be used to obtain the same results.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: October 13, 1998
    Assignee: COM DEV Limited
    Inventors: Robert Peach, Nigel Miller, Bharat Tailor, Kamal Ali, Gary Beauchamp, Simon Lam, Ken Lazaris-Brunner