Patents by Inventor Mark A. Lemmo

Mark A. Lemmo 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: 20070274258
    Abstract: An apparatus and methods for a wireless telecommunication system to provide a wireless interface. A plurality of modems is used for processing wireless communications with a plurality of subscriber line circuits, each for providing a telecommunication connection. A control processor assigns a modem for each communication, selects one of the line circuits and associates that line circuit with the assigned modem for that communication. Thus, any of the line circuits can be used to communicate via any of the modems.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 29, 2007
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: David Cooley, Joseph DiGiovanni, John Kaewell, Scott Kurtz, Mark Lemmo, Michael Regensburg, David Vessal, Eric Johns
  • Patent number: 7245596
    Abstract: A subscriber cluster unit for a wireless telecommunication system provides a wireless interface with a base station for a plurality of subscriber units. The cluster unit has a plurality of frequency agile modems for processing wireless communications with the base station and a plurality of subscriber line circuits, each for providing a telecommunication connection with a subscriber unit. A control processor assigns a modem for each communication between the base station and a selected subscriber unit which is coupled to one of the line circuits and associates that line circuit with the assigned modem for that communication. Thus, a subscriber unit coupled with any of the line circuits can communicate with the base station via any of the modems.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: July 17, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Publication number: 20030086435
    Abstract: A subscriber cluster unit for a wireless telecommunication system provides a wireless interface with a base station for a plurality of subscriber units. The cluster unit has a plurality of frequency agile modems for processing wireless communications with the base station and a plurality of subscriber line circuits, each for providing a telecommunication connection with a subscriber unit. A control processor assigns a modem for each communication between the base station and a selected subscriber unit which is coupled to one of the line circuits and associates that line circuit with the assigned modem for that communication. Thus, a subscriber unit coupled with any of the line circuits can communicate with the base station via any of the modems.
    Type: Application
    Filed: May 28, 2002
    Publication date: May 8, 2003
    Applicant: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Publication number: 20030076802
    Abstract: A subscriber cluster unit for a wireless telecommunication system provides a wireless interface with a base station for a plurality of subscriber units. The cluster unit has a plurality of frequency agile modems for processing wireless communications with the base station and a plurality of subscriber line circuits, each for providing a telecommunication connection with a subscriber unit. A control processor assigns a modem for each communication between the base station and a selected subscriber unit which is coupled to one of the line circuits and associates that line circuit with the assigned modem for that communication. Thus, a subscriber unit coupled with any of the line circuits can communicate with the base station via any of the modems.
    Type: Application
    Filed: July 11, 2002
    Publication date: April 24, 2003
    Applicant: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Patent number: 6496488
    Abstract: A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of-which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: December 17, 2002
    Assignee: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Patent number: 6208630
    Abstract: A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: March 27, 2001
    Assignee: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Patent number: 5852604
    Abstract: A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: December 22, 1998
    Assignee: InterDigital Technology Corporation
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Patent number: 5666355
    Abstract: A subscriber unit of a time division multiple access (TDMA) radiotelephone system is, from a power consumption standpoint, reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down, and other components are powered up. Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals, other techniques (which utilize circuitry provided for other purposes), such as clock frequency control or power down commands, also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: September 9, 1997
    Assignee: InterDigital Technology Corporation
    Inventors: Jim J. Huah, John Kaewell, Kevin Kinney, Mark A. Lemmo, Michael W. Regensburg, William T. Vanderslice, Jr., David Vessal
  • Patent number: 5546383
    Abstract: A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: August 13, 1996
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns
  • Patent number: 5528585
    Abstract: A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 18, 1996
    Inventors: David M. Cooley, Joseph J. DiGiovanni, John D. Kaewell, Scott D. Kurtz, Mark A. Lemmo, Michael W. Regensburg, David Vessal, Eric Johns