Patents by Inventor David C. Garrett
David C. Garrett 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).
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Publication number: 20250072861Abstract: Imaging methods and apparatus for localizing biopsy needles coupled to an ultrasonic transmitter and/or monitoring ablation of an ablation probe connected to a microwave source, which include an arbitrary waveform generator for generating a chirp signal that excites the ultrasonic transmitter to generate an ultrasonic signal or modulates the microwave signal.Type: ApplicationFiled: September 5, 2024Publication date: March 6, 2025Inventors: David C. Garrett, Jinhua Xu, Geng Ku, Lihong Wang
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Publication number: 20230404407Abstract: Certain aspects pertain to systems, apparatus, and methods for one or both of thermoacoustic and ultrasound tomography.Type: ApplicationFiled: June 16, 2023Publication date: December 21, 2023Inventors: David C. Garrett, Jinhua Xu, Geng Ku, Lihong Wang
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Patent number: 10531506Abstract: A device includes circuitry configured to implement one or more PHY communications protocols to simultaneously communicate with one or more stations via communication links on one or more wireless networks, communicate with additional devices via a backhaul network, and exchange collaboration data, including at least one of protocol data or collaborative beamforming data, with the additional devices via the backhaul network to maintain signal parameters of communications signals with the one or more stations.Type: GrantFiled: February 12, 2016Date of Patent: January 7, 2020Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: David C. Garrett, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez, Murat Mese
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Patent number: 9985671Abstract: A device includes circuitry configured to detect one or more properties of an image signal based on outputs from one or more (analog-to-digital converter) ADC configurations of a transceiver, determine a VCO frequency corresponding to an ADC sampling frequency independently from a carrier frequency, and control the VCO frequency of at least one of a transmitter or receiver based on the one or more properties of the image signal.Type: GrantFiled: February 12, 2016Date of Patent: May 29, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: David C. Garrett, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez
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Publication number: 20170207800Abstract: A device includes circuitry configured to implement one or more PHY communications protocols to simultaneously communicate with one or more stations via communication links on one or more wireless networks, communicate with additional devices via a backhaul network, and exchange collaboration data, including at least one of protocol data or collaborative beamforming data, with the additional devices via the backhaul network to maintain signal parameters of communications signals with the one or more stations.Type: ApplicationFiled: February 12, 2016Publication date: July 20, 2017Applicant: BROADCOM CORPORATIONInventors: David C. GARRETT, Franciscus VAN DER GOES, Hooman DARABI, Ramon A. GOMEZ, Murat MESE
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Publication number: 20170207803Abstract: A device includes circuitry configured to detect one or more properties of an image signal based on outputs from one or more (analog-to-digital converter) ADC configurations of a transceiver, determine a VCO frequency corresponding to an ADC sampling frequency independently from a carrier frequency, and control the VCO frequency of at least one of a transmitter or receiver based on the one or more properties of the image signal.Type: ApplicationFiled: February 12, 2016Publication date: July 20, 2017Applicant: AVAGO TECHNOLOGIES GERNERAL IP (SINGAPORE) PTE. LTD.Inventors: David C. GARRETT, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez
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Publication number: 20170207935Abstract: A device includes circuitry configured to determine noise shaping parameters for one or more transmit signals on one or more transmit channels based on transmission protocol and spectral mask criteria. Frequency positions are identified for the one or more transmit channels based on the noise shaping parameters, and the noise shaping parameters are applied to the one or more transmit signals.Type: ApplicationFiled: February 12, 2016Publication date: July 20, 2017Applicant: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: David C. GARRETT, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez, Murat Mese
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Patent number: 9712348Abstract: A device includes circuitry configured to determine noise shaping parameters for one or more transmit signals on one or more transmit channels based on transmission protocol and spectral mask criteria. Frequency positions are identified for the one or more transmit channels based on the noise shaping parameters, and the noise shaping parameters are applied to the one or more transmit signals.Type: GrantFiled: February 12, 2016Date of Patent: July 18, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: David C. Garrett, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez, Murat Mese
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Patent number: 9660670Abstract: A device includes circuitry configured to assess a broadband spectrum environment including signal and blocker characteristics via one or more receiver paths, determine operational parameters for the device based on the signal and blocker characteristics, and align one or more radio components from one or more radios for operation based on the operational parameters of the device.Type: GrantFiled: February 12, 2016Date of Patent: May 23, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: David C. Garrett, Franciscus Van Der Goes, Hooman Darabi, Ramon A. Gomez
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Patent number: 9178553Abstract: Systems and methods are described for enhancing the audio quality of an FM receiver. In embodiments described herein, a stop band noise signal is extracted from an L+R or L?R signal produced by an FM stereo decoder. A channel quality measure is calculated based on the stop band noise signal and is used to control whether a pop suppression technique is applied to the L+R signal. The channel quality measure and the stop band noise signal are also leveraged to perform single-channel noise suppression in the frequency domain on the L?R signal and on the L+R signal. The channel quality measure is also used to control the application of a fast fading compensation process that replaces noisy segments of the L?R and L+R signal with replacement waveforms generated via waveform extrapolation.Type: GrantFiled: January 31, 2012Date of Patent: November 3, 2015Assignee: Broadcom CorporationInventors: Juin-Hwey Chen, Thomas F. Baker, Evan S. McCarthy, Jes Thyssen, Walter J. Wihardja, David C. Garrett
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Patent number: 9130643Abstract: Systems and methods are described for enhancing the audio quality of an FM receiver. In embodiments described herein, quadrature L?R demodulation is applied to a composite baseband signal output by an FM demodulator to obtain an L?R noise signal. A channel quality measure is calculated based on the L?R noise signal and is used to control whether a pop suppression technique is applied to an L+R signal obtained from the composite baseband signal to detect and remove noise pulses therefrom. The channel quality measure and the L?R noise signal are also leveraged to perform single-channel noise suppression in the frequency domain on an L?R signal obtained from the composite baseband signal and on the L+R signal. The channel quality measure is also used to control the application of a fast fading compensation process that replaces noisy segments of the L?R and L+R signal with replacement waveforms generated via waveform extrapolation.Type: GrantFiled: January 31, 2012Date of Patent: September 8, 2015Assignee: Broadcom CorporationInventors: Juin-Hwey Chen, Thomas F. Baker, Evan S. McCarthy, Jes Thyssen, Walter J. Wihardja, David C. Garrett
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Publication number: 20130195164Abstract: Systems and methods are described for enhancing the audio quality of an FM receiver. In embodiments described herein, a stop band noise signal is extracted from an L+R or L?R signal produced by an FM stereo decoder. A channel quality measure is calculated based on the stop band noise signal and is used to control whether a pop suppression technique is applied to the L+R signal. The channel quality measure and the stop band noise signal are also leveraged to perform single-channel noise suppression in the frequency domain on the L?R signal and on the L+R signal. The channel quality measure is also used to control the application of a fast fading compensation process that replaces noisy segments of the L?R and L+R signal with replacement waveforms generated via waveform extrapolation.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: BROADCOM CORPORATIONInventors: Juin-Hwey Chen, Thomas F. Baker, Evan S. McCarthy, Jes Thyssen, Walter J. Wihardja, David C. Garrett
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Publication number: 20130195163Abstract: Systems and methods are described for enhancing the audio quality of an FM receiver. In embodiments described herein, quadrature L?R demodulation is applied to a composite baseband signal output by an FM demodulator to obtain an L?R noise signal. A channel quality measure is calculated based on the L?R noise signal and is used to control whether a pop suppression technique is applied to an L+R signal obtained from the composite baseband signal to detect and remove noise pulses therefrom. The channel quality measure and the L?R noise signal are also leveraged to perform single-channel noise suppression in the frequency domain on an L?R signal obtained from the composite baseband signal and on the L+R signal. The channel quality measure is also used to control the application of a fast fading compensation process that replaces noisy segments of the L?R and L+R signal with replacement waveforms generated via waveform extrapolation.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: Broadcom CorporationInventors: Juin-Hwey Chen, Thomas F. Baker, Evan S. McCarthy, Jes Thyssen, Walter J. Wihardja, David C. Garrett
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Patent number: 7398446Abstract: A first interleaved address generator is configured to generate a first interleaved address, and a second interleaved address generator is configured to generate a second interleaved address substantially concurrently with the first interleaved address generator generating the first interleaved address. A controller is configured to disable the second interleaved address generator from generating the second interleaved address if the second interleaved address is not needed to produce a continuous stream of interleaved addresses.Type: GrantFiled: May 29, 2003Date of Patent: July 8, 2008Assignee: Lucent Technologies Inc.Inventors: David C. Garrett, Chris J. Nicol
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Publication number: 20040255217Abstract: A first interleaved address generator is configured to generate a first interleaved address, and a second interleaved address generator is configured to generate a second interleaved address substantially concurrently with the first interleaved address generator generating the first interleaved address. A controller is configured to disable the second interleaved address generator from generating the second interleaved address if the second interleaved address is not needed to produce a continuous stream of interleaved addresses.Type: ApplicationFiled: May 29, 2003Publication date: December 16, 2004Inventors: David C. Garrett, Chris J. Nicol
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Patent number: 6434704Abstract: Methods are provided for improving the efficiency of clock gating within low power clock trees. In a first aspect, a correlation level between a plurality of clock gating signals and their corresponding gates which gate a source clock is determined. The clock gating signals and their corresponding gates are combined into a single clock gating signal and a single corresponding gate if a preselected level of correlation exists therebetween. In a second aspect, an area overlap is determined for a plurality of sinks, and one of the gated drovers of the sinks is removed. The sinks of the removed gated driver then are connected to a remaining gated driver driven by a single clock gating signal and a single corresponding gate. In a third aspect, physically proximate sink clusters are rewired to generate a pure clock gating group within each sink cluster if rewiring the clusters increases wiring length by less than a predetermined amount.Type: GrantFiled: August 16, 1999Date of Patent: August 13, 2002Assignee: International Business Machines CorporationInventors: Alvar Dean, David C. Garrett, Mircea Stan