Patents Assigned to Andrew Corporation
  • 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
  • Patent number: 7902972
    Abstract: A hierarchical fault handling system and method based on filtering data regarding entities in the system and coordinating said filtered data in order to determined if an entity is considered faulty or not. The result for all entities is coordinated in a system fault coordinating means (17) which makes the overall decision if the system considered to be faulty or not.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: March 8, 2011
    Assignee: Andrew Corporation
    Inventors: Jan Söderkvist, Peter Wahlström, Per-Erik Sundvisson, Tauno Ruuska, Anders Elgcrona
  • Publication number: 20100328148
    Abstract: A system and method for determining the location of a wireless device. A boundary for an approximate area in which the wireless device is located is determined and a plurality of satellites may be determined as a function of the boundary. Assistance data is transmitted to the device which includes information from the plurality of satellites, and the location of the wireless device may be determined from the information. In one embodiment, if the number of the plurality of satellites is greater than a predetermined threshold then the number of satellites may be reduced as a function of one or more of the elevation of each satellite above the horizon, a distance between each satellite to one or more other satellites, and an altitude of each satellite.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 30, 2010
    Applicant: Andrew Corporation
    Inventors: Neil Harper, Martin Dawson, Martin Thomson
  • Patent number: 7854063
    Abstract: An electrical connector for a coaxial cable with a solid outer conductor, the connector in combination with a cable and a method for manufacturing. The electrical connector having a connector body with a bore between a connector end and a cable end. The bore having an inner diameter shoulder at the cable end. A cylindrical sleeve positioned in the bore abutting the inner diameter shoulder. An annular groove open to the cable end, between the cylindrical sleeve and the cable end of the connector body. The annular groove dimensioned to receive an end of the solid outer conductor.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: December 21, 2010
    Assignee: Andrew Corporation
    Inventor: Frank A. Harwath
  • Patent number: 7804449
    Abstract: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: September 28, 2010
    Assignee: Andrew Corporation
    Inventors: Joseph P Kennedy, Jr., Thomas B. Gravely, John P. Carlson, Doug Blackburn, Martin Alles
  • Patent number: 7738836
    Abstract: A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters is disclosed. Embodiments of the novel system and method enable a wireless communication system to determine if signals being received by system receivers arrive directly from a target mobile appliance or if the signals are passing through or via a repeater. In an embodiment, the system's repeaters use a co-channel AM Golay Hadamard sequence multiplied by an uplink signal to watermark the repeated signal. The system uses the known AM Golay Hadamard sequences of the repeaters and the waveform of the received uplink signal to detect whether a repeater has operated on the signal and which repeater operated on the uplink signal. Embodiments of the novel system and method provide system management data and can be used to provide more accurate geolocation of mobiles served by repeater stations.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 15, 2010
    Assignee: Andrew Corporation
    Inventors: Martin Alles, Joseph P. Kennedy, Jr., John Peter Carlson
  • Patent number: 7733268
    Abstract: A method and apparatus for determining the location of a device from signals provided by a plurality of satellites. A device receives a first plurality of signals comprising one signal from each of a first plurality of satellites and determines a first location of the device as a function of the first plurality of signals. The device then determines a second location thereof as a function of a second plurality of signals if the first location is not within a predetermined threshold. The second plurality of signals is a first subset of the first plurality of signals.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: June 8, 2010
    Assignee: Andrew Corporation
    Inventors: Neil Harper, Peter Nicholson
  • Patent number: 7692577
    Abstract: The disclosure relates to method and apparatus for geolocation determination. In one embodiment, the disclosure relates to a method for detecting an erroneous satellite measurement by a receiver, including the steps of (a) determining an approximate location of the receiver; (b) for each of a plurality of satellites from which the receiver receives a signal: (i) determining a range difference between an expected range between the receiver and the satellite and a measured range between the receiver and the satellite; (ii) determining a median value of the range differences; (iii) determining an offset value between the range difference and the median value; (iv) comparing the offset value with a predetermined threshold to thereby detect an erroneous satellite measurement.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: April 6, 2010
    Assignee: Andrew Corporation
    Inventors: Peter Nicholson, Neil Harper
  • Patent number: 7623872
    Abstract: A method for use in a wireless communication system with a network overlay geolocation system having a sparse deployment network in which base stations of the wireless communication system may or may not have a co-located wireless location sensors (WLS). The method enables detection and measurement of a target mobile's signal independently from a primary WLS located at the base station serving the target mobile, which enable location estimated in previous “no location” areas. The method selects based on predetermined criteria from one or more of several techniques that aid in the detection and determining a location for the target mobile. The method selects from timing advance, power levels, pattern matching, EOTD, speed, and pseudo range measurements to estimate the location of the mobile. The method also uses ambiguity function processing to detect the signal and measure an attribute of the signal.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: November 24, 2009
    Assignee: Andrew Corporation
    Inventors: Joseph P. Kennedy, Jr., Peter Carlson, Martin Alles
  • Publication number: 20090131073
    Abstract: A system and method for estimating a location of a wireless device receiving signals from a plurality of nodes of a communication system. A first value may be determined based on a network timing characteristic for one of the nodes, and a second value may be determined based on a network measurement report characteristic. An observed time difference of arrival (“OTDOA”) hyperbola may then be calculated based on the first and second values, and a location of the wireless device estimated as a function of the OTDOA hyperbola.
    Type: Application
    Filed: April 16, 2008
    Publication date: May 21, 2009
    Applicant: Andrew Corporation
    Inventors: John CARLSON, Tariqul ISLAM, Selcuk MAZLUM
  • Patent number: 7518552
    Abstract: A cellular base station telecommunication system includes a plurality of base station antenna sites, each site having one or more groups of base station antennas. A central controller is configured to control an electrical or mechanical parameter in one or more of the antennas in the groups of antennas.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: April 14, 2009
    Assignee: Andrew Corporation
    Inventors: William Emil Heinz, Mathias Martin Ernest Ehlen
  • Publication number: 20090085802
    Abstract: The disclosure relates to method and apparatus for geolocation determination. In one embodiment, the disclosure relates to a method for detecting an erroneous satellite measurement by a receiver, including the steps of (a) determining an approximate location of the receiver; (b) for each of a plurality of satellites from which the receiver receives a signal: (i) determining a range difference between an expected range between the receiver and the satellite and a measured range between the receiver and the satellite; (ii) determining a median value of the range differences; (iii) determining an offset value between the range difference and the median value; (iv) comparing the offset value with a predetermined threshold to thereby detect an erroneous satellite measurement.
    Type: Application
    Filed: August 29, 2008
    Publication date: April 2, 2009
    Applicant: Andrew Corporation
    Inventors: Peter NICHOLSON, Neil Harper
  • Publication number: 20090079623
    Abstract: The disclosure relates to method and apparatus for geolocation determination. In one embodiment, the disclosure relates to a method for detecting an erroneous satellite measurement by a receiver, including the steps of (a) determining an approximate location of the receiver; (b) for each of a plurality of satellites from which the receiver receives a signal: (i) determining a range difference between an expected range between the receiver and the satellite and a measured range between the receiver and the satellite; (ii) determining a median value of the range differences; (iii) determining an offset value between the range difference and the median value; (iv) comparing the offset value with a predetermined threshold to thereby detect an erroneous satellite measurement.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 26, 2009
    Applicant: Andrew Corporation
    Inventors: Peter NICHOLSON, Neil Harper
  • Patent number: 7498988
    Abstract: A multiband base station antenna for communicating with a plurality of terrestrial mobile devices is described. The antenna including one or modules, each module including a low frequency ring element; and a high frequency dipole element superposed with the low frequency ring element. The element includes a ground plane; and a feed probe directed away from the ground plane and having a coupling part positioned proximate to the ring to enable the feed probe to electromagnetically couple with the ring. A dielectric clip provides a spacer between the feed probe and the ring, and also connects the ring to the ground plane. An antenna element is also described including a ring, and one or more feed probes extending from the ring, wherein the ring and feed probe(s) are formed from a unitary piece.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: March 3, 2009
    Assignee: Andrew Corporation
    Inventors: Peter John Bisiules, Ching-Shun Yang
  • Patent number: 7492841
    Abstract: A base station signal is applied to antenna elements. One signal from a first element is electrically modified and evaluated in conjunction with a second, unmodified signal from a second element. The modified signal is further modified and again evaluated with the unmodified signal. The results of the two evaluations are compared to determine a relative phase and/or amplitude at the respective elements.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: February 17, 2009
    Assignee: Andrew Corporation
    Inventors: Barry Mark Fisher, Jonathon C. Veihl, Jeramy Scott Leonard, Donald G. Jackson
  • Patent number: 7474172
    Abstract: A wiper-type variable power divider with capacitive junctions to minimize the creation of passive intermodulation interference (PIM) during adjustment of the power divider. The variable power divider includes an adjustable, wiper-type phase shifter connected to a hybrid power divider. The output ports of the hybrid power divider produce two RF signals having variable and complementary power amplitudes as the power divider is adjusted throughout its adjustment range. The power divider output signals also have a sum that is substantially equal to a constant quantity throughout the adjustment range of the power divider. The phase shifter is well suitable for use in a base station antenna, where it can be used for be beam steering and beam width adjustment. The variable power divider can also be operated by remote control of a motorized actuator that operates the power divider.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: January 6, 2009
    Assignee: Andrew Corporation
    Inventor: Donald L. Runyon
  • Publication number: 20080291116
    Abstract: An antenna includes a main controller for communicating with an external system, a plurality of peripheral devices and a number of sub-controllers. The peripheral devices are associated with sub-controllers. The main controller communicates with the peripheral devices over a hybrid communications bus, addressing both bus-addressable devices and serial addressable devices.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Applicant: Andrew Corporation
    Inventors: Quoc M. LE, Harold Edmond Asbridge, JR., Douglas Alan Gribben
  • Patent number: 7435135
    Abstract: An annular corrugated solid outer conductor coaxial cable electrical connector with an integral spring finger nut telescopically coupled via threads to the cable end of a body. A nut bore in the spring finger nut dimensioned to receive the outer conductor therethrough. A plurality of spring fingers around the periphery of the interface end of the nut bore, projecting towards the interface end, the spring fingers provided with an inward projecting bead at the interface end. the interface end of the spring fingers initially deflectable into an annular groove open to the interface end between the spring fingers and an outer diameter of the spring finger nut.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: October 14, 2008
    Assignee: Andrew Corporation
    Inventor: James Wlos
  • Patent number: 7436355
    Abstract: The disclosure relates to method and apparatus for geolocation determination. In one embodiment, the disclosure relates to a method for detecting an erroneous satellite measurement by a receiver, including the steps of (a) determining an approximate location of the receiver; (b) for each of a plurality of satellites from which the receiver receives a signal: (i) determining a range difference between an expected range between the receiver and the satellite and a measured range between the receiver and the satellite; (ii) determining a median value of the range differences; (iii) determining an offset value between the range difference and the median value; (iv) comparing the offset value with a predetermined threshold to thereby detect an erroneous satellite measurement.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: October 14, 2008
    Assignee: Andrew Corporation
    Inventors: Peter Nicholson, Neil Harper
  • Patent number: 7432858
    Abstract: A substantially planar antenna configured for easy installation in a ceiling or ceiling tile. The antenna is configured for duplex communications in carrier frequency ranges spanning at least a 2:1 ratio of frequency values from the highest to the lowest frequency in the carrier frequency band, such as the frequency range from 800 to 960 MHz and 1700 to 2400 MHz, and within a coverage pattern below the ceiling extending through 360° azimuth and 180° elevation. The antennas are manufactured as a printed circuit board that snaps apart into a number of panels, which each contains at least a planar antenna element and a cross brace that are used to assemble the antenna. The printed circuit board is a dielectric substrate carrying printed conductor including a radiating circular monopole disc radiating element, associated transmission signal paths, and printed indicia that typically include assembly instructions and a logo.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: October 7, 2008
    Assignee: Andrew Corporation
    Inventors: David L. Arndt, Donald L. Runyon, Jr., Sara Ellen K. Phillips