Patents by Inventor Conor O'Keeffe

Conor O'Keeffe 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: 10193603
    Abstract: A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (RefBF1, RefBF2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: January 29, 2019
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
  • Patent number: 10116368
    Abstract: A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (RefBF1, RefBF2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: October 30, 2018
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
  • Patent number: 10090940
    Abstract: A method for calibrating an antenna array coupled to a plurality of transmitters via a plurality of couplers and a plurality of antenna element feeds is described.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: October 2, 2018
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
  • Patent number: 10067171
    Abstract: An active antenna test system comprising an active antenna unit comprising: a test signal generator arranged to generate at least a first test signal and at least one second test signal; a plurality of transmitter modules operably coupled to the test signal generator wherein the plurality of transmitter modules are arranged to simultaneously process the first test signal and at least one second test signal to produce at least one radio frequency test signal therefrom; and at least one receiver module arranged to process one or more signals falling in at least one spectral band determined to be susceptible to intermodulation distortion products caused by the at least one radio frequency test signal being generated from the first test signal and at least one second test signal; and an intermodulation determination module operably coupled to the at least one receiver module and arranged to determine a first received intermodulation performance.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: September 4, 2018
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Joe Moore
  • Patent number: 10003413
    Abstract: A method for assigning, in a database, a relationship between at least one logical channel and at least one antenna element feed that is coupleable to at least one antenna element of an antenna arrangement, is described. The method comprises either: applying a first signal to at least one first logical channel; and detecting whether there is a presence of a radio frequency signal converted from the first signal on at least one first antenna element feed; or applying a second signal to at least one first antenna element feed coupleable to at least one first antenna element of the antenna arrangement; and detecting whether there is a presence of a logical signal converted from the second signal on at least one first logical channel. The method further comprises assigning in the database in response thereto a relationship between the at least one first logical channel and the at least one first antenna element feed.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 19, 2018
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Alex Brophy
  • Patent number: 9692530
    Abstract: An active antenna test system is described. The active antenna test system comprises an active antenna unit comprising: a plurality of antenna elements; at least one processor; a plurality of transceiver modules operably coupled to the at least one processor and arranged to receive at least one first baseband signal for transmission via at least one of the plurality of antenna elements and arranged to pass at least one second baseband signal thereto received and down-converted from at least one of the plurality of antenna elements; and at least one switching module operably coupling the plurality of antenna modules to the plurality of transceiver modules. The active antenna test system also comprises at least one communication test equipment, such as a radio frequency, RF, test module and at least one baseband processor.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: June 27, 2017
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Adrian Normanton
  • Publication number: 20170176507
    Abstract: An active antenna test system comprising an active antenna unit comprising: a test signal generator arranged to generate at least a first test signal and at least one second test signal; a plurality of transmitter modules operably coupled to the test signal generator wherein the plurality of transmitter modules are arranged to simultaneously process the first test signal and at least one second test signal to produce at least one radio frequency test signal therefrom; and at least one receiver module arranged to process one or more signals falling in at least one spectral band determined to be susceptible to intermodulation distortion products caused by the at least one radio frequency test signal being generated from the first test signal and at least one second test signal; and an intermodulation determination module operably coupled to the at least one receiver module and arranged to determine a first received intermodulation performance.
    Type: Application
    Filed: April 8, 2015
    Publication date: June 22, 2017
    Inventors: Conor O'Keeffe, Joe Moore
  • Patent number: 9628256
    Abstract: A multiple input multiple output (MIMO) calibration device (360) for calibrating a phase relationship between at least two signals present on at least two radio frequency (RF) paths coupling a wireless communication unit and the MIMO calibration device (360) is described. The MIMO calibration device (360) is operably coupleable via at least two RF paths between a wireless communication unit and an antenna arrangement (219).
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: April 18, 2017
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Michael O'Brien
  • Patent number: 9596669
    Abstract: A semiconductor device comprising interface logic for transmitting data bursts across an interface. The interface logic is arranged to transmit bursts of data across the interface such that the start of a burst of data is substantially aligned with a symbol interval (SI) boundary. The interface logic is further arranged to apply an offset to the SI boundary at the start of the burst of data.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 14, 2017
    Assignee: NXP USA, INC.
    Inventors: Paul Kelleher, Michael O'Brien, Conor O'Keeffe
  • Patent number: 9525204
    Abstract: A wireless network element is operably couplable to an antenna array for communicating with at least one remote wireless communication unit. The antenna array comprises a plurality of radiating elements where at least one first radiating element of the plurality of radiating elements is arranged to create a radiation pattern in a sector of a communication cell. The wireless network element comprises a receiver arranged to receive and process at least one signal from the at least one remote wireless communication unit via the at least one first radiating element. The wireless network element also comprises a beam scanning module for stepping/sweeping the radiation pattern through the sector of the communication cell, such that at least one signal from the at least one remote wireless communication unit is processed to identify signal parameters representative of incoming signal power and angle of arrival of the received at least one signal.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 20, 2016
    Assignee: Analog Devices Global
    Inventors: Conor O'Keeffe, Joe Moore
  • Publication number: 20160254870
    Abstract: An active antenna test system is described. The active antenna test system comprises an active antenna unit comprising: a plurality of antenna elements; at least one processor; a plurality of transceiver modules operably coupled to the at least one processor and arranged to receive at least one first baseband signal for transmission via at least one of the plurality of antenna elements and arranged to pass at least one second baseband signal thereto received and down-converted from at least one of the plurality of antenna elements; and at least one switching module operably coupling the plurality of antenna modules to the plurality of transceiver modules. The active antenna test system also comprises at least one communication test equipment, such as a radio frequency, RF, test module and at least one baseband processor.
    Type: Application
    Filed: August 15, 2014
    Publication date: September 1, 2016
    Inventors: Conor O'Keeffe, Adrian Normanton
  • Publication number: 20160197660
    Abstract: A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (RcfBF1, RcfBF2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams.
    Type: Application
    Filed: August 15, 2014
    Publication date: July 7, 2016
    Inventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
  • Publication number: 20160191176
    Abstract: A method for calibrating an antenna array coupled to a plurality of transmitters via a plurality of couplers and a plurality of antenna element feeds is described.
    Type: Application
    Filed: August 15, 2014
    Publication date: June 30, 2016
    Inventors: Conor O'Keeffe, Michael O'Brien, Sean Sexton
  • Publication number: 20160142124
    Abstract: A method for assigning, in a database, a relationship between at least one logical channel and at least one antenna element feed that is coupleable to at least one antenna element of an antenna arrangement, is described. The method comprises either: applying a first signal to at least one first logical channel; and detecting whether there is a presence of a radio frequency signal converted from the first signal on at least one first antenna element feed; or applying a second signal to at least one first antenna element feed coupleable to at least one first antenna element of the antenna arrangement; and detecting whether there is a presence of a logical signal converted from the second signal on at least one first logical channel. The method further comprises assigning in the database in response thereto a relationship between the at least one first logical channel and the at least one first antenna element feed.
    Type: Application
    Filed: June 5, 2014
    Publication date: May 19, 2016
    Inventors: Conor O'Keeffe, Alex Brophy
  • Patent number: 9035828
    Abstract: A method for calibrating (700) an antenna array comprises a plurality of antenna elements coupled to a plurality of respective receive paths in a wireless communication system. The method comprises, in receive mode, applying a test signal to an individual single receive path (715) of the plurality of receive paths; and feeding back the test signal via a switched coupler network. The method further comprises running a receive calibration measurement routine to determine at least one measurement value used to calibrate the individual signal receive path and waiting for at least one converged measurement value; and extracting (720) the converged measurement value for at least one individual receive path. The steps of applying, running, extracting for a next individual single receive path are repeated until the calibration routine has completed (725).
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: May 19, 2015
    Assignee: Socowave Technologies, Ltd.
    Inventors: Conor O'Keeffe, Michael O'Brien
  • Patent number: 8982899
    Abstract: An apparatus comprises a number of sub-systems and a control interface operably coupled to sub-systems for routing data therebetween. A strobe generation function is operably coupled to the control interface and configured to generate a plurality of different strobe signals to differentiate between different intended receiving devices. Thus, different strobe signals may be multiplexed onto a single control interface link, based on a pulse width or voltage magnitude characteristics of the respective strobe signals. A strobe decoder function is operably coupled to the control interface and configured to decode a plurality of different strobe signals to differentiate between triggering sub-systems on receiving devices.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 17, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Conor O'Keeffe, Paul Kelleher, Daniel Schwartz
  • Patent number: 8976845
    Abstract: A network element for a wireless communication system is locatable to couple at least one base station to an antenna array comprising a plurality of antenna elements. The network element comprises a plurality of independent transceiver circuits coupled to at least one of a plurality of respective antenna elements of the antenna array; and logic arranged to apply at least one complex digital signal to at least one transceiver signal path of a transceiver circuit of the plurality of independent transceiver circuits. A feedback path is arranged to provide feedback of the at least one complex digital signal such that it is capable of facilitating determination of latency mismatch error response between at least two transceiver signal paths. Adjustment means comprises delay logic arranged to receive a complex digital signal and provide a modified representation of the received complex digital signal in response to the latency mismatch error response of the at least two transceiver signal path.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: March 10, 2015
    Assignee: Socowave Technologies, Ltd.
    Inventors: Conor O'Keeffe, Michael William O'Brien
  • Patent number: 8976849
    Abstract: A calibration signal generator for use in a balancing circuit calibration device in a radio receiver, the calibration signal generator comprising: a means of amplifying a clocking signal from a clocking signal generator to provide a first calibration signal; a means of generating a second calibration signal from the clocking signal, the first and second calibration signals being transmissible to a one or more mixing circuits in the balancing circuit calibration device; and a means synchronizing the operation of other circuit elements in the balancing circuit calibration device with the clocking signal; characterized in that the clocking signal generator is present in the radio receiver and used therein for other functions.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: March 10, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Patrick Pratt, Hari Thirumoorthy, Conor O'Keeffe
  • Patent number: 8942655
    Abstract: An integrated circuit comprising processing logic for operably coupling to radio frequency (RF) receiver circuitry arranged to receive a wireless network signal. The receiver circuitry generates in-phase and quadrature digital baseband representations of the wireless network signal. The processing logic determines quadrature (I/Q) imbalance of the RF receiver circuitry based on the in-phase and quadrature digital baseband representations of the wireless network signal.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: January 27, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Norman Beamish, Conor O'Keeffe, Patrick Pratt
  • Patent number: 8923465
    Abstract: A semiconductor device comprises sampling logic, comprising: input sample path selection logic arranged to enable at least one input sample path; sampler logic arranged to receive and sample an input data signal in a serial data stream in accordance with a phase of the at least one enabled input sample path; and transition detection logic arranged to detect transitions within the received input data signal. The input sample path selection logic is further arranged, upon detection of a transition within the received input data signal, to determine if the phase of the at least one input sample path is a phase having a largest window between logic values; and if it is determined that the phase of the at least one input sample path is not the phase having a largest window between logic values, to enable at least one input sample path comprising a more appropriate phase.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: December 30, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Conor O'Keeffe, Kiyoshi Kase, Paul Kelleher