Patents Assigned to ParkerVision, Inc.
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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.
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Patent number: 9288100Abstract: 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: July 31, 2015Date of Patent: March 15, 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: 9246736Abstract: Methods, systems, and apparatuses for down converting a modulated carrier signal to a demodulated baseband signal are described herein. A first switch is controlled with a first control signal Which comprises a first sampling aperture with a specified frequency, wherein the first switch is on during the first sampling aperture and wherein the first switch is off outside the first sampling aperture. A second switch is controlled with a second control signal which comprises a second sampling aperture and wherein the second switch is off outside the second sampling aperture. The first and second control signals each control a charging and discharging cycle of a respective energy storage element so that for each switch a portion of energy is transferred to the respective energy storage element when the respective switch is on during the charging cycle, and a portion of previously transferred energy is discharged during the discharging cycle for each respective switch when the switch is off.Type: GrantFiled: March 5, 2015Date of Patent: January 26, 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: 9246737Abstract: Methods, systems, and apparatus for down converting a modulated carrier signal to a demodulated baseband signal are described herein. A first switch is controlled with a first control signal which comprises a first sampling aperture with a specified frequency, wherein the first switch is on during the first sampling aperture and wherein the first switch is off outside the first sampling aperture. A second switch is controlled with a second control signal which comprises a second sampling aperture with a specified frequency, wherein the second switch is on during the second sampling aperture and wherein the second switch is off outside the second sampling aperture.Type: GrantFiled: March 5, 2015Date of Patent: January 26, 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: 9232038Abstract: A wireless communications interface couples wireless service to conventional wireline phone appliances. In one embodiment, the wireless communications interface is connected to the phone appliances through existing phone jacks. This allows a user to place and receive calls over a wireless network using the existing wireline infrastructure in a building. By using the invention, users can consolidate their portable and fixed phone service with one of the multiple wireless service provides and bypass the wireline service provider entirely, if so desired. In a second embodiment, the wireless communications interface is directly connected to the phone appliances, bypassing the installed wireline infrastructure. In a third embodiment, both wireline and wireless service are operative, and the wireless communications interface may include logic arbitration to route multiple calls to multiple phone appliances.Type: GrantFiled: March 6, 2014Date of Patent: January 5, 2016Assignee: ParkerVision, Inc.Inventor: Michael J. Bultman
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Patent number: 9197164Abstract: 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: December 1, 2014Date of Patent: November 24, 2015Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
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Publication number: 20150326259Abstract: 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: ApplicationFiled: June 29, 2015Publication date: November 12, 2015Applicant: ParkerVision, Inc.Inventors: Gregory S. RAWLINS, David F. SORRELLS
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Publication number: 20150318611Abstract: The present disclosure relates to antenna arrays for communication systems. An apparatus comprises an array of antenna elements and a controller configured to independently control modulated or unmodulated phase and modulated or unmodulated gain for two or more signals received or transmitted by the array of antenna elements using energy sampling techniques.Type: ApplicationFiled: May 4, 2015Publication date: November 5, 2015Applicant: ParkerVision, Inc.Inventors: Gregory S. RAWLINS, David F. SORRELLS
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Patent number: 9166528Abstract: 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: January 6, 2014Date of Patent: October 20, 2015Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
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Publication number: 20150288431Abstract: 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: April 29, 2014Publication date: October 8, 2015Applicant: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins
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Patent number: 9143088Abstract: A circuit is provided comprising detector circuitry, calculating circuitry, and determining circuitry. The detector circuitry is figured to generate an I data signal magnitude value of a sampled I data signal and a Q data signal magnitude value of a sampled Q data signal. The calculating circuitry is configured to calculate a phase shift angle ?I between first and second equal and constant or substantially equal and constant envelope constituents of the sampled I data signal and to calculate a phase shift angle ?Q between first and second substantially equal and substantially constant envelope constituents of the sampled Q data signal. The determining circuitry is configured to determine in-phase and quadrature amplitude information of the substantially equal and substantially constant envelope constituents of the sampled I signal and to determine in-phase and quadrature amplitude information of the first and second substantially equal and substantially constant envelope constituents of the sampled Q signal.Type: GrantFiled: December 15, 2011Date of Patent: September 22, 2015Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
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Patent number: 9118528Abstract: Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.Type: GrantFiled: February 4, 2014Date of Patent: August 25, 2015Assignee: 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: 9106316Abstract: Embodiments of the present invention reduce or eliminate the need for fixed frequency high Q band filtering for both full duplex (FDD) and half duplex (TDD) systems. Transceiver architectures according to embodiments of the present invention can be designed to have a single input/output for both FDD and TDD based standards. Further, according to embodiments, because the duplexer and/or SAW power losses are lowered or removed altogether, the system power output requirements can be met more easily and with higher efficiency.Type: GrantFiled: May 27, 2009Date of Patent: August 11, 2015Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins
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Patent number: 9106500Abstract: 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: September 13, 2012Date of Patent: August 11, 2015Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins
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Publication number: 20150215151Abstract: Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.Type: ApplicationFiled: August 29, 2014Publication date: July 30, 2015Applicant: 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: 9094085Abstract: Multiple-Input-Single-Output (MISO) devices and associated VPA control algorithms are provided herein. For example, a method includes receiving a plurality of control signals. The method also generates a plurality of substantially constant envelope signals from the plurality of control signals and a reference signal. The method combines the plurality of substantially constant envelope signals at a multiple input single output (MISO) node to generate a desired waveform. Further, the method controls the desired waveform at the MISO node based on a signal constellation corresponding to the plurality of control signals.Type: GrantFiled: May 10, 2013Date of Patent: July 28, 2015Assignee: ParkerVision, Inc.Inventors: Gregory S. Rawlins, David F. Sorrells
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Publication number: 20150071383Abstract: 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: November 14, 2014Publication date: March 12, 2015Applicant: ParkerVision, Inc.Inventors: Gregory S. RAWLINS, David F. Sorrels
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Publication number: 20140375383Abstract: 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: ApplicationFiled: June 25, 2013Publication date: December 25, 2014Applicant: ParkerVision, Inc.Inventors: Gregory S. SILVER, David F. SORRELLS, Gregory S. RAWLINS
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Patent number: 8913691Abstract: 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: August 21, 2013Date of Patent: December 16, 2014Assignee: ParkerVision, Inc.Inventors: David F. Sorrells, Gregory S. Rawlins, Michael W. Rawlins