Patents by Inventor Gregory A. Maca

Gregory A. Maca 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).

  • Patent number: 9780447
    Abstract: Antenna system having an antenna array with multiple sub-arrays, each having one or more antenna elements, is calibrated using a distributed calibration antenna element, such as a leaky coaxial cable, that spans across at least two and possibly all of the sub-arrays. To calibrate the transmit (TX) paths of the sub-arrays, TX calibration test signals are transmitted by the sub-arrays, captured by the distributed calibration element, and processed by a corresponding calibration radio. To calibrate the receive (RX) paths of the sub-arrays, an RX calibration test signal is generated by the calibration radio, transmitted by the distributed calibration element, captured by the sub-arrays, and processed by their corresponding radios. Cross-correlation between the calibration and captured signals is performed to derive the complex gain of each sub-array transmitter and receiver, which provides information for aligning the gain, phase, and delay of the different TX and RX paths of the antenna array.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: October 3, 2017
    Assignee: CommScope Technologies LLC
    Inventors: Gregory A. Maca, Jonathon C. Veihl
  • Patent number: 8971796
    Abstract: A signal repeating element for repeating a signal includes a housing, at least one transmit antenna element positioned on one side of the housing and at least one receive antenna element positioned on the same one side of the housing. Receiver and transmitter circuitry is coupled with respective ones of the receive and transmit antenna elements. Phase circuitry for affecting the phase of signals from the at least one receive antenna element and at least one transmit antenna element is coupled between the respective receive or transmit antenna element and the receiver or transmitter circuitry.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: March 3, 2015
    Assignee: Andrew LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Publication number: 20140354507
    Abstract: Antenna system having an antenna array with multiple sub-arrays, each having one or more antenna elements, is calibrated using a distributed calibration antenna element, such as a leaky coaxial cable, that spans across at least two and possibly all of the sub-arrays. To calibrate the transmit (TX) paths of the sub-arrays, TX calibration test signals are transmitted by the sub-arrays, captured by the distributed calibration element, and processed by a corresponding calibration radio. To calibrate the receive (RX) paths of the sub-arrays, an RX calibration test signal is generated by the calibration radio, transmitted by the distributed calibration element, captured by the sub-arrays, and processed by their corresponding radios. Cross-correlation between the calibration and captured signals is performed to derive the complex gain of each sub-array transmitter and receiver, which provides information for aligning the gain, phase, and delay of the different TX and RX paths of the antenna array.
    Type: Application
    Filed: January 22, 2013
    Publication date: December 4, 2014
    Inventors: Gregory A. Maca, Jonathon C. Veihl
  • Publication number: 20140127989
    Abstract: A signal repeating element for repeating a signal includes a housing, at least one transmit antenna element positioned on one side of the housing and at least one receive antenna element positioned on the same one side of the housing. Receiver and transmitter circuitry is coupled with respective ones of the receive and transmit antenna elements. Phase circuitry for affecting the phase of signals from the at least one receive antenna element and at least one transmit antenna element is coupled between the respective receive or transmit antenna element and the receiver or transmitter circuitry.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: ANDREW LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Patent number: 8630581
    Abstract: A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 14, 2014
    Assignee: Andrew LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathan C. Veihl
  • Patent number: 8358970
    Abstract: A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: January 22, 2013
    Assignee: Andrew Corporation
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Publication number: 20110312269
    Abstract: A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Patent number: 8010042
    Abstract: A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: August 30, 2011
    Assignee: Andrew LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Publication number: 20100029197
    Abstract: A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 4, 2010
    Applicant: ANDREW LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Patent number: 7623868
    Abstract: A multi-band wireless access point includes a first antenna system including at least one antenna and having a first effective range for communicating with subscribers using a first communications protocol and a second antenna system including a plurality of antennas generally co-located with the first antenna system and having a second effective range for communicating with subscribers using a second communications protocol whereby the first and the second effective ranges are effectively coextensive. Moreover, each of the plurality of antennas in the second antenna system has a greater directivity than the at least one antenna in the first antenna system to compensate for a difference in propagation of the second communications protocol relative to the first communications protocol.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: November 24, 2009
    Assignee: Andrew LLC
    Inventors: Mano D. Judd, Andria Van Der Merwe, Gregory A. Maca
  • Patent number: 7577398
    Abstract: A flat-panel repeater includes a housing having a pair of oppositely facing surfaces, at least one antenna element mounted to each of the surfaces for radiating energy in a direction opposite to that of an antenna element mounted to the other of the surfaces, and an electronic circuit mounted within the housing and operatively coupling signals between at least one antenna element on each of the oppositely facing surfaces of the module. Isolation between the antennas on opposite sides of the repeater is improved by various techniques, such as use of adaptive cancellation which removes a significant portion of the feedback signal power, therefore increasing the total system isolation by the same amount. This additional isolation can be used to achieve greater system gain, and therefore significantly extend the range of the system.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: August 18, 2009
    Assignee: Andrew LLC
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Patent number: 7263293
    Abstract: A wireless voice and data system for improving coverage in an enclosed area includes a hub device for transceiving RF signals with a signal source positioned generally removed from an enclosed area. The hub device includes voice hardware for processing voice signals, data hardware for processing data signals, and combining hardware for combining and separating voice signals and data signals in the hub device. A remote access point device for transceiving signals with customer equipment includes voice hardware for processing voice signals, data hardware for processing data signals, and combining hardware for combining and separating voice signals and data signals in the remote access point. An optical fiber system is coupled between the hub device and the remote access point device and is operable for modulating and demodulating the combined voice and data signals for communicating between the hub device and remote access point device.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: August 28, 2007
    Assignee: Andrew Corporation
    Inventors: Kevin Ommodt, Matthew Melester, Gregory A. Maca, Donald Stone
  • Publication number: 20060105705
    Abstract: A consumer repeater for use in a structure comprises a donor unit with a communication antenna, the donor unit configured for communicating with a remote location within a communication band. A broadcast unit with a communication antenna is configured for communicating with a device that is located in or proximate to the structure also within the communication band. A wireless link is coupled between the donor unit and the broadcast unit and is operable for communicating therebetween, the wireless link operating in an FM format.
    Type: Application
    Filed: November 16, 2004
    Publication date: May 18, 2006
    Inventors: Gregory Maca, Joseph Lipowski
  • Patent number: 7043270
    Abstract: A system for sharing a cellular tower among multiple service providers comprises an antenna having an array of elements operable to define multiple, individual beams for signals in a communication frequency band and converter circuitry to convert the communication frequency band to a digital band. Filtering and signal processing circuitry define digital band portions for each of the at least two service providers, and drive the antenna to define at least one individual beam for each individual service provider.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: May 9, 2006
    Assignee: Andrew Corporation
    Inventors: Mano D. Judd, Gregory A. Maca, Joel C. Roper
  • Patent number: 6959191
    Abstract: A system for determining the location of a device in a wireless communication network includes at least one antenna for transmitting signals in a wireless communication network. A monitoring unit, located proximate to the at least one antenna, is operable for receiving, as a first input, signals transmitted by the antenna and signals from a device in the network and for receiving, as a second input, signals to be transmitted by the antenna. The monitoring unit includes at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of the transmitted antenna signals on the monitoring unit first input.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: October 25, 2005
    Assignee: Andrew Corporation
    Inventor: Gregory A. Maca
  • Publication number: 20040203858
    Abstract: A system for determining the location of a device in a wireless communication network includes at least one antenna for transmitting signals in a wireless communication network. A monitoring unit, located proximate to the at least one antenna, is operable for receiving, as a first input, signals transmitted by the antenna and signals from a device in the network and for receiving, as a second input, signals to be transmitted by the antenna. The monitoring unit includes at least one cancellation stage for modifying the second input and combining the modified second input with the first input to reduce the effect of the transmitted antenna signals on the monitoring unit first input.
    Type: Application
    Filed: June 3, 2002
    Publication date: October 14, 2004
    Applicant: Andrew Corporation
    Inventor: Gregory A. Maca
  • Publication number: 20040203704
    Abstract: A wireless voice and data system for improving coverage in an enclosed area includes a hub device for transceiving RF signals with a signal source positioned generally removed from an enclosed area. The hub device includes voice hardware for processing voice signals, data hardware for processing data signals, and combining hardware for combining and separating voice signals and data signals in the hub device. A remote access point device for transceiving signals with customer equipment includes voice hardware for processing voice signals, data hardware for processing data signals, and combining hardware for combining and separating voice signals and data signals in the remote access point. An optical fiber system is coupled between the hub device and the remote access point device and is operable for modulating and demodulating the combined voice and data signals for communicating between the hub device and remote access point device.
    Type: Application
    Filed: June 10, 2002
    Publication date: October 14, 2004
    Applicant: Andrew Corporation
    Inventors: Kevin Ommodt, Matthew Melester, Gregory A. Maca, Donald Stone
  • Publication number: 20040110469
    Abstract: A flat-panel repeater includes a housing having a pair of oppositely facing surfaces, at least one antenna element mounted to each of the surfaces for radiating energy in a direction opposite to that of an antenna element mounted to the other of the surfaces, and an electronic circuit mounted within the housing and operatively coupling signals between at least one antenna element on each of the oppositely facing surfaces of the module. Isolation between the antennas on opposite sides of the repeater is improved by various techniques, such as use of adaptive cancellation which removes a significant portion of the feedback signal power, therefore increasing the total system isolation by the same amount. This additional isolation can be used to achieve greater system gain, and therefore significantly extend the range of the system.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 10, 2004
    Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl
  • Patent number: 6745003
    Abstract: A repeater system has at least one donor antenna element for communicating with a base station and at least one link antenna element for communicating with a remote station. A radio frequency uplink path and a radio frequency downlink path are coupled between the donor antenna and the null antenna. An adaptive cancellation circuit in each of the radio frequency uplink path and the radio frequency downlink path generates a cancellation signal, which when added to a radio frequency signal in either of the radio frequency uplink and radio frequency downlink paths, substantially cancels any feedback signal present in the radio frequency signal.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: June 1, 2004
    Assignee: Andrew Corporation
    Inventors: Gregory A. Maca, Mano D. Judd
  • Publication number: 20040052227
    Abstract: A multi-band wireless access point includes a first antenna system including at least one antenna and having a first effective range for communicating with subscribers using a first communications protocol and a second antenna system including a plurality of antennas generally co-located with the first antenna system and having a second effective range for communicating with subscribers using a second communications protocol whereby the first and the second effective ranges are effectively coextensive. Moreover, each of the plurality of antennas in the second antenna system has a greater directivity than the at least one antenna in the first antenna system to compensate for a difference in propagation of the second communications protocol relative to the first communications protocol.
    Type: Application
    Filed: September 16, 2002
    Publication date: March 18, 2004
    Applicant: Andrew Corporation
    Inventors: Mano D. Judd, Andria Van Der Merwe, Gregory A. Maca