Patents by Inventor Mark J. Handzel

Mark J. Handzel 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).

  • Subscriber RF telephone system for providing multiple speech and/or data singals simultaneously over either a single or a plurality of RF channels
    Patent number: 5121391
    Abstract: A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quality of the signals. The base station is interconnected with an external information network, which may be analong and/or digital. The information signals are selected from the group consisting of voice, data, facsimile, video, computer and instrumentation signals. The modulation level of the the signals and the power applied to the system are adjusted in accordance with the signal error detection in the system. The system is provided with spatial diversity by using a plurality of antennas selectively spaced from each other to provide relatively high signal reception despite signal fading. The base station operates over a plurality of RF channel pairs.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: June 9, 1992
    Assignee: International Mobile Machines
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis
  • Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
    Patent number: 5119375
    Abstract: A system and method for the wireless transmission of information signals between a base station and a plurality of subscriber stations.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: June 2, 1992
    Assignee: International Mobile Machines Corp.
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis
  • Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
    Patent number: 5022024
    Abstract: A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quality of the signals. The base station is interconnected with an external information network, which may be analog and/or digital. The information signals are selected from the group consisting of voice, data, facsimile, video, computer and instrumentation signals. The modulation level of the signals and the power applied to the system are adjusted in accordance with signal error detection in the system. The system is provided with spatial diversity by using a plurality of antennas selectively spaced from each other to provide relatively high signal reception despite signal fading. The base station operates over a plurality of RF channel pairs.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: June 4, 1991
    Assignee: International Mobile Machines Corporation
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis
  • Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
    Patent number: 4912705
    Abstract: A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quality of the signals. The base station is interconnected with an external information network, which may be analog and/or digital. The information signals are selected from the group consisting of voice, data, facsimile, video, computer and instrumentation signals. The modulation level of the signals and the power applied to the system are adjusted in accordance with signal error detection in the system. The system is provided with spatial diversity by using a plurality of antennas selectively spaced from each other to provide relatively high signal reception despite signal fading. The base station operates over a plurality of RF channel pairs.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: March 27, 1990
    Assignee: International Mobile Machines Corporation
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis
  • Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
    Patent number: 4817089
    Abstract: A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quality of the signals. The base station is interconnected with an external information network, which may be analog and/or digital. The information signals are selected from the group consisting of voice, data, facsimile, video, computer and instrumentation signals. The modulation level of the signals and the power applied to the system are adjusted in accordance with signal error detection in the system. The system is provided with spatial diversity by using a plurality of antennas selectively spaced from each other to provide relatively high signal reception despite signal fading. The base station operates over a plurality of RF channel pairs.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: March 28, 1989
    Assignee: International Mobile Machines Corporation
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis
  • Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
    Patent number: 4675863
    Abstract: A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quality of the signals. The base station is interconnected with an external information network, which may be analog and/or digital. The information signals are selected from the group consisting of voice, data, facsimile, video, computer and instrumentation signals. The modulation level of the signals and the power applied to the system are adjusted in accordance with signal error detection in the system. The system is provided with spatial diversity by using a plurality of antennas selectively spaced from each other to provide relatively high signal reception despite signal fading. The base station operates over a plurality of RF channel pairs.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: June 23, 1987
    Assignee: International Mobile Machines Corp.
    Inventors: Eric Paneth, Mark J. Handzel, Steven A. Morley, Graham M. Avis