Patents by Inventor Martin Paul Wilson
Martin Paul Wilson 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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Patent number: 10171047Abstract: A power amplifier circuit comprising a transistor for receiving a signal to be amplified at an input and for outputting an amplified signal at an output; a modulated power supply connected to the transistor output; and a resistive element connected at the transistor output such that a low impedance is maintained at the transistor output across a range of operational frequencies.Type: GrantFiled: September 26, 2017Date of Patent: January 1, 2019Assignee: SnapTrack, Inc.Inventor: Martin Paul Wilson
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Patent number: 9979353Abstract: Aspects of the present disclosure are generally directed to a power supply for generating an output supply voltage. The power supply generally includes a variable voltage supply configured to generate an intermediate supply voltage based on a reference signal, a correction circuit configured to generate an error signal based on the output supply voltage or the intermediate supply voltage, and a combiner configured to combine the intermediate supply voltage and the error signal to provide the output supply voltage.Type: GrantFiled: March 23, 2017Date of Patent: May 22, 2018Assignee: SnapTrack, Inc.Inventors: Martin Paul Wilson, Shane Flint
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Publication number: 20180019716Abstract: A power amplifier circuit comprising a transistor for receiving a signal to be amplified at an input and for outputting an amplified signal at an output; a modulated power supply connected to the transistor output; and a resistive element connected at the transistor output such that a low impedance is maintained at the transistor output across a range of operational frequencies.Type: ApplicationFiled: September 26, 2017Publication date: January 18, 2018Inventor: Martin Paul WILSON
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Patent number: 9859854Abstract: A power amplifier circuit comprising a transistor for receiving a signal to be amplified at an input and for outputting an amplified signal at an output; a modulated power supply connected to the transistor output; and a resistive element connected at the transistor output such that a low impedance is maintained at the transistor output across a range of operational frequencies.Type: GrantFiled: November 18, 2013Date of Patent: January 2, 2018Assignee: SnapTrack, Inc.Inventor: Martin Paul Wilson
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Patent number: 9722543Abstract: There is described a method of generating a power supply tracking a reference signal, comprising the steps of: filtering the reference signal; generating a first voltage in dependence on the filtered reference signal; generating a second voltage in dependence on the reference signal; and combining the first and second voltages to provide a power supply voltage.Type: GrantFiled: July 13, 2015Date of Patent: August 1, 2017Assignee: SnapTrack, Inc.Inventors: Martin Paul Wilson, Gerard Wimpenny
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Patent number: 9641132Abstract: A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.Type: GrantFiled: March 3, 2015Date of Patent: May 2, 2017Assignee: SNAPTRACK, INC.Inventor: Martin Paul Wilson
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Patent number: 9548700Abstract: There is provided an output stage comprising: a phase splitter for receiving an input signal and for generating first and second drive signals of opposite phase in dependence thereon; a DC offset signal generator for generating a DC offset signal; an adder for adding the DC offset signal to the first drive signal to provide a first modified drive signal; a subtractor for subtracting the DC offset signal from the second drive signal to provide a second modified drive signal; a first drive transistor associated with a first power supply voltage, for generating a first output signal in dependence on the first modified drive signal; a second drive transistor associated with a second power supply voltage, for generating a second output signal in dependence on the second modified drive signal; and a combiner for combining the first and second output signals to generate a phase combined output signal.Type: GrantFiled: December 29, 2014Date of Patent: January 17, 2017Assignee: SnapTrack, Inc.Inventors: Gerard Wimpenny, Martin Paul Wilson
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Patent number: 9496832Abstract: There is provided an amplifier arrangement comprising: a main amplifier connected to receive an input signal and generate an amplified version of the input signal; an additional amplifier, having a smaller geometry than the main amplifier, connected to receive the input signal and generate an amplified version thereof; and wherein the outputs of the main amplifier and the additional amplifier are combined to provide an amplified output.Type: GrantFiled: January 16, 2015Date of Patent: November 15, 2016Assignee: SnapTrack, Inc.Inventor: Martin Paul Wilson
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Patent number: 9385605Abstract: A switching stage is provided that generally includes multiple switching paths for routing a signal. For example, the switching stage may include a first switching path having at least one switching element for selectively connecting an input of the switching stage to an output of the switching stage and a second switching path having at least one switching element for selectively connecting the input of the switching stage to the output of the switching staged. In certain aspects, the first and second switching paths are controlled such that a signal is selectively routed from the input of the switching stage to the output of the switching stage via the first and second switching paths in dependence on the current of the signal to be routed.Type: GrantFiled: May 24, 2011Date of Patent: July 5, 2016Assignee: SNAPTRACK, INC.Inventor: Martin Paul Wilson
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Patent number: 9377796Abstract: The invention relates to a switched mode power supply comprising at least one switch and at least one inductor, the at least one switch being arranged to connect one terminal of the at least one inductor to one of a plurality of supply voltages, the other terminal of the at least one inductor providing a supply output, and further comprising a capacitor connected in parallel with the at least one inductor.Type: GrantFiled: July 9, 2013Date of Patent: June 28, 2016Assignee: QUALCOMM IncorporatedInventor: Martin Paul Wilson
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Patent number: 9350246Abstract: A buck-boost converter comprising: a voltage source; an inductor, wherein a first terminal of the inductor is switchably connected to the voltage source; and a plurality of capacitors switchably connected to a second terminal of the inductor, wherein a respective plurality of output voltages are formed across the plurality of capacitors, further comprising: an error determination means, for determining an error in each of the plurality of voltages, an inner control loop adapted to switchably connect one of the plurality of capacitors to the second terminal of the inductor in dependence on the determined errors; and an outer control loop adapted to control switching between buck mode and boost mode in dependence upon the determined errors.Type: GrantFiled: March 26, 2015Date of Patent: May 24, 2016Assignee: SnapTrack, Inc.Inventor: Martin Paul Wilson
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Patent number: 9287781Abstract: There is disclosed a buck-boost converter comprising a voltage generation apparatus comprising: a voltage source; an inductor, wherein a first terminal of the inductor is switchably connected to the voltage source; and a plurality of capacitors switchably connected to a second terminal of the inductor, wherein a respective plurality of voltages are formed across the plurality of capacitors.Type: GrantFiled: May 15, 2009Date of Patent: March 15, 2016Assignee: QUALCOMM IncorporatedInventor: Martin Paul Wilson
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Patent number: 9190958Abstract: A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.Type: GrantFiled: July 12, 2013Date of Patent: November 17, 2015Assignee: SNAPTRACK, INC.Inventor: Martin Paul Wilson
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Publication number: 20150326180Abstract: There is provided an output stage comprising: a phase splitter for receiving an input signal and for generating first and second drive signals of opposite phase in dependence thereon; a DC offset signal generator for generating a DC offset signal; an adder for adding the DC offset signal to the first drive signal to provide a first modified drive signal; a subtractor for subtracting the DC offset signal from the second drive signal to provide a second modified drive signal; a first drive transistor associated with a first power supply voltage, for generating a first output signal in dependence on the first modified drive signal; a second drive transistor associated with a second power supply voltage, for generating a second output signal in dependence on the second modified drive signal; and a combiner for combining the first and second output signals to generate a phase combined output signal.Type: ApplicationFiled: December 29, 2014Publication date: November 12, 2015Inventors: Gerard Wimpenny, Martin Paul Wilson
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Publication number: 20150318826Abstract: There is described a method of generating a power supply tracking a reference signal, comprising the steps of: filtering the reference signal; generating a first voltage in dependence on the filtered reference signal; generating a second voltage in dependence on the reference signal; and combining the first and second voltages to provide a power supply voltage.Type: ApplicationFiled: July 13, 2015Publication date: November 5, 2015Inventors: Martin Paul Wilson, Gerard Wimpenny
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Publication number: 20150270816Abstract: There is provided an amplifier arrangement comprising: a main amplifier connected to receive an input signal and generate an amplified version of the input signal; an additional amplifier, having a smaller geometry than the main amplifier, connected to receive the input signal and generate an amplified version thereof; and wherein the outputs of the main amplifier and the additional amplifier are combined to provide an amplified output.Type: ApplicationFiled: January 16, 2015Publication date: September 24, 2015Inventor: Martin Paul Wilson
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Patent number: 9118278Abstract: A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.Type: GrantFiled: April 29, 2014Date of Patent: August 25, 2015Assignee: SnapTrack, Inc.Inventor: Martin Paul Wilson
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Publication number: 20150236582Abstract: There is disclosed a voltage supply stage comprising: a selection means for selecting one of a plurality of power supply voltages in dependence on a reference signal representing a desired power supply voltage; a combining means for combining the selected power supply voltage with a correction signal to generate an adjusted power supply voltage; and an adjusting means adapted to generate the correction signal in dependence on the reference signal and the adjusted power supply voltage, wherein the selection means is arranged to select the one of the plurality of supply voltages further in dependence on a signal derived from one of the inputs to the combining means.Type: ApplicationFiled: May 5, 2015Publication date: August 20, 2015Inventor: Martin Paul Wilson
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Patent number: 9106182Abstract: There is described a method of generating a power supply tracking a reference signal, comprising the steps of: filtering the reference signal; generating a first voltage in dependence on the filtered reference signal; generating a second voltage in dependence on the reference signal; and combining the first and second voltages to provide a power supply voltage.Type: GrantFiled: November 4, 2009Date of Patent: August 11, 2015Assignee: Nujira LimitedInventors: Martin Paul Wilson, Gerard Wimpenny
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Publication number: 20150200594Abstract: A buck-boost converter comprising: a voltage source; an inductor, wherein a first terminal of the inductor is switchably connected to the voltage source; and a plurality of capacitors switchably connected to a second terminal of the inductor, wherein a respective plurality of output voltages are formed across the plurality of capacitors, further comprising: an error determination means, for determining an error in each of the plurality of voltages, an inner control loop adapted to switchably connect one of the plurality of capacitors to the second terminal of the inductor in dependence on the determined errors; and an outer control loop adapted to control switching between buck mode and boost mode in dependence upon the determined errors.Type: ApplicationFiled: March 26, 2015Publication date: July 16, 2015Inventor: Martin Paul Wilson