Patents by Inventor Breck W. Lovinggood
Breck W. Lovinggood 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: 10938435Abstract: Base station antennas utilize RF transmitters and receivers, which operate with enhanced bias control to achieve very high speed switching during TDD operation. A radio frequency communication circuit for TDD includes a transmit/receive amplifier (e.g., MMIC) having first and second input terminals, which are responsive to a bias control voltage and radio frequency input signal. A bias control circuit is provided, which is electrically coupled to the first input terminal and a current receiving terminal of the transmit/receive amplifier. The bias control circuit includes a closed-loop feedback path between the current receiving terminal and the first input terminal, which is configured to regulate a magnitude of the bias control voltage with high precision to thereby achieve a substantially constant quiescent bias current at the current receiving terminal when the transmit/receive amplifier is enabled.Type: GrantFiled: November 22, 2019Date of Patent: March 2, 2021Assignee: CommScope Technologies LLCInventor: Breck W. Lovinggood
-
Publication number: 20200091953Abstract: Base station antennas utilize RF transmitters and receivers, which operate with enhanced bias control to achieve very high speed switching during TDD operation. A radio frequency communication circuit for TDD includes a transmit/receive amplifier (e.g., MMIC) having first and second input terminals, which are responsive to a bias control voltage and radio frequency input signal. A bias control circuit is provided, which is electrically coupled to the first input terminal and a current receiving terminal of the transmit/receive amplifier. The bias control circuit includes a closed-loop feedback path between the current receiving terminal and the first input terminal, which is configured to regulate a magnitude of the bias control voltage with high precision to thereby achieve a substantially constant quiescent bias current at the current receiving terminal when the transmit/receive amplifier is enabled.Type: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Inventor: Breck W. Lovinggood
-
Patent number: 10523260Abstract: Base station antennas utilize RF transmitters and receivers, which operate with enhanced bias control to achieve very high speed switching during TDD operation. A radio frequency communication circuit for TDD includes a transmit/receive amplifier (e.g., MMIC) having first and second input terminals, which are responsive to a bias control voltage and radio frequency input signal. A bias control circuit is provided, which is electrically coupled to the first input terminal and a current receiving terminal of the transmit/receive amplifier. The bias control circuit includes a closed-loop feedback path between the current receiving terminal and the first input terminal, which is configured to regulate a magnitude of the bias control voltage with high precision to thereby achieve a substantially constant quiescent bias current at the current receiving terminal when the transmit/receive amplifier is enabled.Type: GrantFiled: December 5, 2018Date of Patent: December 31, 2019Assignee: CommScope Technologies LLCInventor: Breck W. Lovinggood
-
Publication number: 20190199390Abstract: Base station antennas utilize RF transmitters and receivers, which operate with enhanced bias control to achieve very high speed switching during TDD operation. A radio frequency communication circuit for TDD includes a transmit/receive amplifier (e.g., MMIC) having first and second input terminals, which are responsive to a bias control voltage and radio frequency input signal. A bias control circuit is provided, which is electrically coupled to the first input terminal and a current receiving terminal of the transmit/receive amplifier. The bias control circuit includes a closed-loop feedback path between the current receiving terminal and the first input terminal, which is configured to regulate a magnitude of the bias control voltage with high precision to thereby achieve a substantially constant quiescent bias current at the current receiving terminal when the transmit/receive amplifier is enabled.Type: ApplicationFiled: December 5, 2018Publication date: June 27, 2019Inventor: Breck W. Lovinggood
-
Patent number: 8971796Abstract: 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: GrantFiled: January 13, 2014Date of Patent: March 3, 2015Assignee: Andrew LLCInventors: 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: 20140127989Abstract: 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: ApplicationFiled: January 13, 2014Publication date: May 8, 2014Applicant: ANDREW LLCInventors: 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: 8630581Abstract: 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: GrantFiled: January 18, 2013Date of Patent: January 14, 2014Assignee: Andrew LLCInventors: 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: 8358970Abstract: 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: GrantFiled: August 29, 2011Date of Patent: January 22, 2013Assignee: Andrew CorporationInventors: 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: 20110312269Abstract: 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: ApplicationFiled: August 29, 2011Publication date: December 22, 2011Inventors: 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: 20110274017Abstract: A system for suppressing transmission channel noise in a signal transmission/reception device—particularly a time division duplex (TDD) wireless communications device—is provided. The system provides one or more shunt elements, instantiated at some point along the device's signal transmission channel. One or more attenuation elements are also instantiated at some point along the signal transmission channel, as are one or more disabling elements. A trigger signal indicates when the device is shifting from signal transmission operation (or mode) to signal reception operation. Responsive to assertion of the trigger signal, the shunt, attenuation and disabling elements are activated.Type: ApplicationFiled: July 22, 2011Publication date: November 10, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Michael L. Brobston, Breck W. Lovinggood, Robert W. Monroe
-
Patent number: 8010042Abstract: 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: GrantFiled: August 10, 2009Date of Patent: August 30, 2011Assignee: Andrew LLCInventors: 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: 8000274Abstract: A system for suppressing transmission channel noise in a signal transmission/reception device—particularly a time division duplex (TDD) wireless communications device—is provided. The system provides one or more shunt elements, instantiated at some point along the device's signal transmission channel. One or more attenuation elements are also instantiated at some point along the signal transmission channel, as are one or more disabling elements. A trigger signal indicates when the device is shifting from signal transmission operation (or mode) to signal reception operation. Responsive to assertion of the trigger signal, the shunt, attenuation and disabling elements are activated.Type: GrantFiled: November 22, 2005Date of Patent: August 16, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Michael L. Brobston, Breck W. Lovinggood, Robert W. Monroe
-
Publication number: 20100029197Abstract: 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: ApplicationFiled: August 10, 2009Publication date: February 4, 2010Applicant: ANDREW LLCInventors: 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: 7577398Abstract: 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: GrantFiled: January 16, 2001Date of Patent: August 18, 2009Assignee: Andrew LLCInventors: 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: 7394311Abstract: A Class S RF power amplifier for use in a radio frequency (RF) transmitter. The Class S power amplifier comprises a delta-sigma modulator that receives an analog modulated RF carrier and generates a pulse-width modulated binary signal. The Class S power amplifier also comprises a switch mode power amplifier that receives the pulse-width modulated binary signal generated by the delta-sigma modulator and generates an output carrier signal that switches between a fully on state and a fully off state. The sampling rate of the delta-sigma modulator is less than four times the frequency of the output carrier signal generated by the switch mode power amplifier.Type: GrantFiled: January 6, 2006Date of Patent: July 1, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Ernesto Jeckeln, Breck W. Lovinggood, Michael L. Brobston
-
Patent number: 7259630Abstract: A predistorer configured for use with an RF power amplifier having an input loop configured to be coupled to the input of the RF power amplifier and peak control circuit. Such an input loop includes a look-up table containing predistortion values to be applied to an input signal, in response to the power in the input signal, for forming a predistorted input signal. The predistorter may further include an output loop, such an output loop configured to measure an intermodulation distortion product of the RF power amplifier output resulting from the predistorted input signal, and operable to update the predistortion values in the look-up table. Such a peak control circuit configured to select a power supply voltage for the RF power amplifier in response to the power in the input signal.Type: GrantFiled: July 23, 2003Date of Patent: August 21, 2007Assignee: Andrew CorporationInventors: Thomas A. Bachman, II, Breck W. Lovinggood
-
Patent number: 7068973Abstract: The present invention provides a method of retransmitting a GPS signal inside a structure. The method includes receiving the GPS signal, amplifying the GPS signal to produce a second GPS signal, and retransmitting the second GPS signal inside the structure either directly or indirectly through an intermediate link in one of the unlicensed bands. The present invention may also be used for the retransmission of digital radio signals inside a structure.Type: GrantFiled: February 25, 2000Date of Patent: June 27, 2006Assignee: Andrew CorporationInventors: Breck W. Lovinggood, David T. Tennant
-
Patent number: 6963242Abstract: An amplifier system containing a polynomial predistorer and a polynominal predistorter configured for use with an RF power amplifier, the polynomial predistorter having a polynomial generator configured to receive an RF input signal and generate a predistortion function based thereon, and a combiner circuit also configured to receive the RF input signal and coupled to the polynomial generator and configured to combine the RF input signal with the predistortion function to form a predistorted input signal, the predistorted input signal operable to improve the adjacent channel power and/or the error vector magnitude performance of the RF power amplifier.Type: GrantFiled: July 31, 2003Date of Patent: November 8, 2005Assignee: Andrew CorporationInventors: Paul E. White, Breck W. Lovinggood
-
Patent number: 6934511Abstract: An integrated repeater includes a housing having opposing sides, a donor antenna mounted on one of the opposing sides, a null antenna mounted on the other of the opposing sides, and repeater electronics mounted in the housing and operatively interconnecting the donor antenna and the null antenna. The repeater electronics include a beamforming arrangement for creating a desired antenna pattern of the donor antenna relative to a base station and a desired antenna pattern of the null antenna relative to subscriber equipment, and interference cancellation electronics for cancelling interference feedback signals between the donor antenna and the null antenna in both an uplink path and a downlink path.Type: GrantFiled: October 23, 2000Date of Patent: August 23, 2005Assignee: Andrew CorporationInventors: Breck W. Lovinggood, Mano D. Judd, William P. Kuiper
-
Publication number: 20040110469Abstract: 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: ApplicationFiled: September 10, 2003Publication date: June 10, 2004Inventors: Mano D. Judd, Breck W. Lovinggood, David T. Tennant, Gregory A. Maca, William P. Kuiper, James L. Alford, Michael D. Thomas, Jonathon C. Veihl