Patents by Inventor David F. Sorrells
David F. Sorrells 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: 20180041176Abstract: Embodiments of the present invention include a method and system for control of a multiple-input-single output (MISO) device. For example, the method includes partitioning a waveform constellation space into a plurality of regions, where each region of the plurality of regions is associated with one or more control functions of the MISO device. The method also includes transitioning the MISO device between a plurality of classes of operation based on the one or more control functions.Type: ApplicationFiled: March 27, 2017Publication date: February 8, 2018Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20180013454Abstract: An apparatus, system, and method are provided for energy conversion. For example, the apparatus can include a trans-impedance node, a reactive element, and a trans-impedance circuit. The reactive element can be configured to transfer energy to the trans-impedance node. The trans-impedance circuit can be configured to receive one or more control signals and to dynamically adjust an impedance of the trans-impedance node. The trans-impedance node, as a result, can operate as an RF power switching supply based on the one or more control signals.Type: ApplicationFiled: March 27, 2017Publication date: January 11, 2018Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Patent number: 9768733Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.Type: GrantFiled: May 2, 2014Date of Patent: September 19, 2017Assignee: Parker Vision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
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Publication number: 20170222711Abstract: An apparatus, method and system for transmission are described herein. For example, apparatus can include a synthesis engine, a power supply and a multiple input single output (MISO) operator. The synthesis engine is configured to generate amplitude control signals, phase control signals and power supply control signals based on command and control information. The power supply is configured to receive the power supply control signals and to generate a power supply signal. Further, the MISO operator is configured to generate an output signal with an amplitude or a phase controlled by at least one of the amplitude control signals, the phase control signals and the power supply signal.Type: ApplicationFiled: August 14, 2016Publication date: August 3, 2017Applicant: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins
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Publication number: 20170201948Abstract: An embodiment of the present invention is directed to a method for partitioning an energy or power source. The energy source may be, for example, a battery or batteries or other power supply or power supplies for an electronic device, such as a cell phone, or mobile device. The energy source (battery for example), or power supply, provides power to a cell phone, or mobile device or any other load or power consuming device. Partitioning this energy source is a technique for controlling its operation so that power is provided to the power consuming device, such as a cell phone more efficiently, thereby extending the length of time the phone can be used between re-charging.Type: ApplicationFiled: January 20, 2017Publication date: July 13, 2017Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20170201949Abstract: An embodiment of the present invention is directed to a method for partitioning an energy or power source. The energy source may be, for example, a battery or batteries or other power supply or power supplies for an electronic device, such as a cell phone, or mobile device. The energy source (battery for example), or power supply, provides power to a cell phone, or mobile device or any other load or power consuming device. Partitioning this energy source is a technique for controlling its operation so that power is provided to the power consuming device, such as a cell phone more efficiently, thereby extending the length of time the phone can be used between re-charging.Type: ApplicationFiled: January 20, 2017Publication date: July 13, 2017Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Patent number: 9705540Abstract: A method for generating a radio frequency (RF) signal is disclosed herein. The method includes generating, with a plurality of analog-to-digital converters, analog control signals. A modulated control signal is generated, using a modulator, based on the analog control signals. A biased modulated control signal is generated, using an amplifier, based on the modulated control signal and a first bias control signal. Further, the RF signal is generated, using a multiple-input-single-output (MISO) device, based on the biased modulated control signal and a second bias control signal.Type: GrantFiled: June 29, 2015Date of Patent: July 11, 2017Assignee: PARKER VISION, INC.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20170118717Abstract: An embodiment of the present invention is directed to a method for partitioning an energy or power source. The energy source may be, for example, a battery or batteries or other power supply or power supplies for an electronic device, such as a cell phone, or mobile device. The energy source (battery for example), or power supply, provides power to a cell phone, or mobile device or any other load or power consuming device. Partitioning this energy source is a technique for controlling its operation so that power is provided to the power consuming device, such as a cell phone more efficiently, thereby extending the length of time the phone can be used between re-charging.Type: ApplicationFiled: January 8, 2017Publication date: April 27, 2017Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20170118718Abstract: An embodiment of the present invention is directed to a method for partitioning an energy or power source. The energy source may be, for example, a battery or batteries or other power supply or power supplies for an electronic device, such as a cell phone, or mobile device. The energy source (battery for example), or power supply, provides power to a cell phone, or mobile device or any other load or power consuming device. Partitioning this energy source is a technique for controlling its operation so that power is provided to the power consuming device, such as a cell phone more efficiently, thereby extending the length of time the phone can be used between re-charging.Type: ApplicationFiled: January 8, 2017Publication date: April 27, 2017Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20170118716Abstract: An embodiment of the present invention is directed to a method for partitioning an energy or power source. The energy source may be, for example, a battery or batteries or other power supply or power supplies for an electronic device, such as a cell phone, or mobile device. The energy source (battery for example), or power supply, provides power to a cell phone, or mobile device or any other load or power consuming device. Partitioning this energy source is a technique for controlling its operation so that power is provided to the power consuming device, such as a cell phone more efficiently, thereby extending the length of time the phone can be used between re-charging.Type: ApplicationFiled: January 8, 2017Publication date: April 27, 2017Applicant: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Patent number: 9614484Abstract: Embodiments of the present invention include a method and system for control of a multiple-input-single output (MISO) device. For example, the method includes partitioning a waveform constellation space into a plurality of regions, where each region of the plurality of regions is associated with one or more control functions of the MISO device. The method also includes transitioning the MISO device between a plurality of classes of operation based on the one or more control functions.Type: GrantFiled: May 13, 2014Date of Patent: April 4, 2017Assignee: PARKERVISION, INC.Inventors: David F. Sorrells, Gregory S. Rawlins
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Patent number: 9608677Abstract: An apparatus, system, and method are provided for energy conversion. For example, the apparatus can include a trans-impedance node, a reactive element, and a trans-impedance circuit. The reactive element can be configured to transfer energy to the trans-impedance node. The trans-impedance circuit can be configured to receive one or more control signals and to dynamically adjust an impedance of the trans-impedance node. The trans-impedance node, as a result, can operate as an RF power switching supply based on the one or more control signals.Type: GrantFiled: July 13, 2015Date of Patent: March 28, 2017Assignee: PARKER VISION, INCInventors: Gregory S. Rawlins, David F. Sorrells
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Patent number: 9444673Abstract: Methods, systems, and apparatuses for down-converting a modulate carrier signal to a demodulated baseband signal by sampling the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using pulses with apertures to control a switch so as to (a) transfer energy from the modulated carrier signal and accumulate the transferred energy in a capacitor when the switch is closed during the apertures of the pulses and (b) discharge some of the previously accumulated energy from the capacitor into load circuitry at least when the switch is open. The demodulated baseband signal is generated from (i) accumulating energy transferred to the capacitor each time the switch is closed during the apertures of the pulses, and (ii) discharging some of the previously accumulated energy into the load circuitry each time the switch is opened.Type: GrantFiled: July 31, 2015Date of Patent: September 13, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Michael J. Bultman, Robert W. Cook, Richard C. Looke, Charley D. Moses, Jr.
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Patent number: 9419692Abstract: An apparatus, method and system for transmission are described herein. For example, apparatus can include a synthesis engine, a power supply and a multiple input single output (MISO) operator. The synthesis engine is configured to generate amplitude control signals, phase control signals and power supply control signals based on command and control information. The power supply is configured to receive the power supply control signals and to generate a power supply signal. Further, the MISO operator is configured to generate an output signal with an amplitude or a phase controlled by at least one of the amplitude control signals, the phase control signals and the power supply signal.Type: GrantFiled: April 29, 2014Date of Patent: August 16, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins
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Patent number: 9413233Abstract: A power supply is disclosed herein. For example, a method for controlling the power supply can include dynamically programming a threshold voltage. The method can also include down-converting an input voltage to generate a down converted voltage at an output voltage node. Further, the method can include passing the input voltage to the output voltage node when a supply voltage exceeds the threshold voltage.Type: GrantFiled: June 25, 2013Date of Patent: August 9, 2016Assignee: ParkerVision, Inc.Inventors: Gregory S. Silver, David F. Sorrells, Gregory S. Rawlins
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Publication number: 20160173144Abstract: An apparatus, system, and method are provided for energy conversion. For example, the apparatus can include a trans-impedance node, a reactive element, and a trans-impedance circuit. The reactive element can be configured to transfer energy to the trans-impedance node. The trans-impedance circuit can be configured to receive one or more control signals and to dynamically adjust an impedance of the trans-impedance node. The trans-impedance node, as a result, can operate as an RF power switching supply based on the one or more control signals.Type: ApplicationFiled: July 13, 2015Publication date: June 16, 2016Applicant: ParkerVision, Inc.Inventors: Gregory S. RAWLINS, David F. Sorrells
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Patent number: 9350591Abstract: Methods for down converting a modulated carrier signal to a demodulated baseband signal are described herein. The method requires that a first portion of energy is transferred from the modulated carrier signal, and stored at a first storage device when a first switch is on. At least some of the energy stored in the first storage device is discharged when the first switch is off. The method further comprises transferring a second portion of energy from the modulated carrier signal, storing at a second storage device the second portion of transferred energy when a second switch is on, and discharging at least some of the energy stored in the second storage device when the second switch is off.Type: GrantFiled: March 5, 2015Date of Patent: May 24, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Michael J. Bultman, Robert W. Cook, Richard C. Looke, Charley D. Moses, Gregory S. Rawlins, Michael W. Rawlins
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Patent number: 9325556Abstract: Methods, systems, and apparatuses for down-converting a modulate earner signal to a demodulated baseband signal by sampling the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using pulses with apertures to control a switch so as to (a) transfer energy from the modulated carrier signal and accumulate the transferred energy in a capacitor when the switch is closed during the apertures of the pukes and (b) discharge some of the previously accumulated energy from the capacitor into load circuitry at least when the switch is open. The demodulated baseband signal is generated from (i) accumulating energy transferred to the capacitor each time the switch is closed during the apertures of the pulses, and (ii) discharging some of the previously accumulated energy into the load circuitry each time the switch is opened.Type: GrantFiled: July 31, 2015Date of Patent: April 26, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Michael J. Bultman, Robert W. Cook, Richard C. Looke, Charley D. Moses, Jr.
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Patent number: 9319262Abstract: Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated—during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.Type: GrantFiled: June 26, 2015Date of Patent: April 19, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Michael J. Bultman, Robert W. Cook, Richard C. Looke, Charley D. Moses, Jr.
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Patent number: 9306792Abstract: Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.Type: GrantFiled: February 26, 2015Date of Patent: April 5, 2016Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Michael J. Bultman, Robert W. Cook, Richard C. Looke, Charley D. Moses, Jr.