Patents by Inventor Pablo Moreno Galbis
Pablo Moreno Galbis 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: 20240105115Abstract: Electronic devices, displays, and methods are provided for operating an electronic display in coexistence with sensors that could be adversely impacted by the operation of the electronic display. An electronic device may include an electronic display and a sensor. The electronic display may display image content by light emission during an emission period and periodically enter a quiet period in which the light emission of the electronic display is turned off. The sensor may perform sensing operations during the quiet period without interference from the operation of the electronic display.Type: ApplicationFiled: September 15, 2023Publication date: March 28, 2024Inventors: Mahdi Farrokh Baroughi, Ce Zhang, Haitao Li, Hari P. Paudel, Hopil Bae, Jeongsup Lee, Nikhil Acharya, Pablo Moreno Galbis, Seung B. Rim, SeyedAli TaheriTari, Shengzhe Jiao, Stanley B. Wang, Sunmin Jang, Xiang Lu, Yaser Azizi, Young Don Bae
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Publication number: 20240012515Abstract: Touch sensitive display technologies (e.g., integrated touch-display pixel-based systems) are evolving to contain more analog and digital circuits inside the panel itself instead of the traditionally simple thin-film transistors. This improves the display characteristics but makes those circuits more vulnerable to the impact of external ESD strikes, which can degrade the user experience. This disclosure describes a series of circuits and techniques to mitigate the impact of these discharges on front of screen artifacts and potential false touches. These circuits and techniques may include: performing configuration-only panel updates independently of the image refresh rate, improving the in-panel memory circuits to make them resistant to unexpected pin toggles via disabling of a write path in response to a read clock, implementing a pin corruption detector and implementing a supply injection detector.Type: ApplicationFiled: June 20, 2023Publication date: January 11, 2024Inventors: Pablo Moreno Galbis, Xiang Lu, Bin Huang, Ling Zhang, Nikhil Acharya, Derek K. Shaeffer, Stanley B. Wang, Yongjie Jiang, Hopil Bae, Jiayi Jin, Ce Zhang, Young Don Bae, Giovanni Azzellino, Wooseung Yang, Mahdi Farrokh Baroughi, Weijun Yao, Rajesh Velayuthan, Eric A. Hildebrandt, Henry C. Jen
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Publication number: 20240005850Abstract: To reduce image artifacts induced by temperature variations associated with display pixels of an electronic display, processing circuitry may process temperature sensing data to obtain an average temperature and a temperature distribution of the electronic display. Based on the processed temperature data, the processing circuit may adjust a reference voltage applied to the display pixels to compensate for the average temperate. To further correct for the image artifacts, the processing circuitry may transform image data to luminance domain. Based on the processed temperature data, the processing may adjust luminance vales of the image data to compensate for the temperature distribution.Type: ApplicationFiled: June 14, 2023Publication date: January 4, 2024Inventors: Sunmin Jang, Ce Zhang, Hopil Bae, Mahdi Farrokh Baroughi, Pablo Moreno Galbis, Paolo Sacchetto, Yaser Azizi, Young Don Bae
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Patent number: 11635778Abstract: A voltage regulator circuit is disclosed. The voltage regulator includes a feedback circuit configured to generate a feedback signal based on a voltage level present on a regulated power supply node. A comparison circuit is arranged to generate an error signal based on the feedback signal and a reference voltage level. A compensation circuit is configured to modify the error signal, based on a routing impedance coupled between the regulated supply voltage node and a load circuit, to generate a control circuit. An output circuit of the voltage regulator is configured to source current to the regulated power supply node based on the control signal.Type: GrantFiled: September 25, 2020Date of Patent: April 25, 2023Assignee: Apple Inc.Inventors: Yongjie Jiang, Pablo Moreno-Galbis, Stanley Bo-Ting Wang
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Publication number: 20220100217Abstract: A voltage regulator circuit is disclosed. The voltage regulator includes a feedback circuit configured to generate a feedback signal based on a voltage level present on a regulated power supply node. A comparison circuit is arranged to generate an error signal based on the feedback signal and a reference voltage level. A compensation circuit is configured to modify the error signal, based on a routing impedance coupled between the regulated supply voltage node and a load circuit, to generate a control circuit. An output circuit of the voltage regulator is configured to source current to the regulated power supply node based on the control signal.Type: ApplicationFiled: September 25, 2020Publication date: March 31, 2022Inventors: Yongjie Jiang, Pablo Moreno-Galbis, Stanley Bo-Ting Wang
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Patent number: 11092988Abstract: A start-up speed enhancement circuit and method for lower-power regulators is provided herein. Operations of a method can comprise detecting a condition of a power regulator being a start-up condition and applying a first current and a second current to the power regulator based on the start-up condition. The method can also comprise determining the condition of the power regulator changes from the start-up condition to an operation condition. Further, the method can comprise stopping application of the second current to the power regulator based on the condition being the operation condition.Type: GrantFiled: September 23, 2019Date of Patent: August 17, 2021Assignee: INVENSENSE, INC.Inventors: Le Jin, Pradeep Shettigar, Pablo Moreno Galbis
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Patent number: 10938380Abstract: A bias current circuit is disclosed. The bias current circuit includes a number of current sources that can selectively be coupled to a bias current node or an auxiliary node. The bias current may be provided through the bias current node. During a trimming operation, a control circuit may selectively couple particular ones of the current sources to the bias current node, in accordance with a desired bias current. Other ones of the current sources may be coupled to the auxiliary node, through which an auxiliary current is provided. Upon completing the trimming operation, the control circuit may cause the auxiliary current to be reduced to zero.Type: GrantFiled: December 9, 2019Date of Patent: March 2, 2021Assignee: Apple Inc.Inventors: Mohammadhasan Fayazi, Pablo Moreno Galbis, Stanley Bo-Ting Wang
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Publication number: 20200097033Abstract: A start-up speed enhancement circuit and method for lower-power regulators is provided herein. Operations of a method can comprise detecting a condition of a power regulator being a start-up condition and applying a first current and a second current to the power regulator based on the start-up condition. The method can also comprise determining the condition of the power regulator changes from the start-up condition to an operation condition. Further, the method can comprise stopping application of the second current to the power regulator based on the condition being the operation condition.Type: ApplicationFiled: September 23, 2019Publication date: March 26, 2020Inventors: Le Jin, Pradeep Shettigar, Pablo Moreno Galbis
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Patent number: 10591318Abstract: A circuit includes a sensor and a half-bridge circuit. The sensor includes a first sensor capacitor and a second sensor capacitor, where capacitances of the first sensor capacitor and the second sensor capacitor change in opposing directions responsive to receiving a physical signal. The sensor generates a plurality of sensor signals according to the physical signal, the plurality of signals including a common mode injection and a plurality of differential signals. The half-bridge circuit includes a first half-bridge capacitor and a second half-bridge capacitor, where capacitances of the first half-bridge capacitor and the second half-bridge capacitor compensate for the common mode injection of the plurality of sensor signals. The sensor and the half-bridge circuit are coupled to a plurality of sense nodes configured to output the plurality of differential signals.Type: GrantFiled: August 31, 2017Date of Patent: March 17, 2020Assignee: InvenSense, Inc.Inventors: Pablo Moreno Galbis, Du Chen, Stanley Bo-Ting Wang
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Publication number: 20190063957Abstract: A circuit includes a sensor and a half-bridge circuit. The sensor includes a first sensor capacitor and a second sensor capacitor, where capacitances of the first sensor capacitor and the second sensor capacitor change in opposing directions responsive to receiving a physical signal. The sensor generates a plurality of sensor signals according to the physical signal, the plurality of signals including a common mode injection and a plurality of differential signals. The half-bridge circuit includes a first half-bridge capacitor and a second half-bridge capacitor, where capacitances of the first half-bridge capacitor and the second half-bridge capacitor compensate for the common mode injection of the plurality of sensor signals. The sensor and the half-bridge circuit are coupled to a plurality of sense nodes configured to output the plurality of differential signals.Type: ApplicationFiled: August 31, 2017Publication date: February 28, 2019Applicant: InvenSense, Inc.Inventors: Pablo MORENO GALBIS, Du CHEN, Stanley Bo-Ting WANG
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Patent number: 9069365Abstract: Embodiments for methods, apparatus and systems for operating a voltage regulator are disclosed. One embodiment of the voltage regulator generates a switching voltage through controlled closing and opening of a series switch element and a shunt switch element. The voltage regulator further includes a switched output filter that includes a plurality of capacitors for filtering the switching voltage and generating an output voltage. A mode controller is operative to disconnect at least one of the plurality of capacitors upon receiving a first indicator, where disconnecting causes the at least one of the plurality of capacitors to electrically float, wherein while the at least one capacitor is disconnected the output voltage is changed from a first value to a second value, return the output voltage to a first value or a third value upon receiving a second indicator, and reconnect the at least one of the plurality of capacitors.Type: GrantFiled: May 1, 2013Date of Patent: June 30, 2015Assignee: R2 Semiconductor, Inc.Inventors: James E.C. Brown, Daniel Dobkin, Pablo Moreno Galbis, Cory Severson, David Fisher
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Patent number: 8994347Abstract: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element, and generating an output voltage by filtering the switching voltage with an output inductor and a load capacitor. The method further includes generating an assisting current based on a value of current conducted through the output inductor, and assisting the load current by summing the assisting current with the current conducted through the inductor.Type: GrantFiled: June 4, 2012Date of Patent: March 31, 2015Assignee: R2 Semiconductor, Inc.Inventors: Pablo Moreno Galbis, James E. C. Brown
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Patent number: 8975887Abstract: Embodiments of systems, methods and apparatuses of a switching voltage regulator are disclosed. One switching voltage regulator includes a series switch element, a shunt switch element, a PWM controller, and a mode controller. The PWM controller includes an error amplifier and a switching controller. The error amplifier generates an error signal based on a difference between a reference voltage and an output voltage. Further, the switching controller is operative to generate switch element control voltages based on the error signal, for controlling opening and closing of the series switch element and the shunt switch element, wherein the opening and closing of the series switch element and the shunt switch element generates a switching voltage. The mode controller is operative adjust a gain of the error amplifier over a selected range of frequencies based on a parameter indicative of a likelihood of oscillations in the output voltage.Type: GrantFiled: March 12, 2013Date of Patent: March 10, 2015Assignee: R2 Semiconductor, Inc.Inventors: Pablo Moreno Galbis, James E. C. Brown, Cory Severson
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Patent number: 8917067Abstract: Methods, apparatuses and systems for assisting an output current of a voltage converter, are disclosed. One method includes detecting a request for a positive change in an output voltage of the voltage converter, selecting an output current assist value based on the requested positive change in the output voltage, for a predetermined load, and assisting the output current with the selected output assist current.Type: GrantFiled: June 21, 2012Date of Patent: December 23, 2014Assignee: R2 Semiconductor, Inc.Inventors: Pablo Moreno Galbis, James E. C. Brown
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Patent number: 8843180Abstract: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One apparatus includes a switching voltage regulator, wherein the switching voltage regulator includes a series switch element, a shunt switch element, a switching controller and a switched output filter. The switching controller is configured to generate a switching voltage through controlled closing and opening of the series switch element and the shunt switch element. The switched output filter filters the switching voltage and generates a regulated output voltage, wherein the switched output filter includes a plurality of capacitors that are selectively included within the switched output filter.Type: GrantFiled: June 5, 2013Date of Patent: September 23, 2014Assignee: R2 Semiconductor, Inc.Inventors: James E. C. Brown, Daniel Dobkin, Pablo Moreno Galbis, Cory Severson, Lawrence M. Burns
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Publication number: 20140253065Abstract: Embodiments of systems, methods and apparatuses of a voltage regulator are disclosed. One apparatus of the voltage regulator includes a series switch element, wherein the series switch element comprises a plurality of partitioned series switch elements, a shunt switch element, and a switching controller. The switching controller is operative to control the series switch element and the shunt switch element in an idle state, wherein none of the plurality of partitioned series switch elements are active, control the series switch element and the shunt switch element in a burst state, wherein N of the plurality of partitioned series switch elements are active, and control the series switch element and the shunt switch element in a transition state, wherein M of the plurality of partitioned series switch elements are active, and wherein M is less than N.Type: ApplicationFiled: July 21, 2013Publication date: September 11, 2014Applicant: R2 SEMICONDUCTOR, INC.Inventors: James E. C. Brown, Pablo Moreno Galbis, John O'Boyle, III
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Patent number: 8725218Abstract: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element. Further, the method includes generating, by a switchable output filter, a regulated output voltage by filtering the switching voltage, wherein the switchable output filter comprises a plurality of capacitors that are selectively included within the switchable output filter.Type: GrantFiled: February 18, 2012Date of Patent: May 13, 2014Assignee: R2 Semiconductor, Inc.Inventors: James E. C. Brown, Daniel Dobkin, Pablo Moreno Galbis, Cory Severson, Lawrence M. Burns
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Publication number: 20140009130Abstract: Embodiments of systems, methods and apparatuses of a switching voltage regulator are disclosed. One switching voltage regulator includes a series switch element, a shunt switch element, a PWM controller, and a mode controller. The PWM controller includes an error amplifier and a switching controller. The error amplifier generates an error signal based on a difference between a reference voltage and an output voltage. Further, the switching controller is operative to generate switch element control voltages based on the error signal, for controlling opening and closing of the series switch element and the shunt switch element, wherein the opening and closing of the series switch element and the shunt switch element generates a switching voltage. The mode controller is operative adjust a gain of the error amplifier over a selected range of frequencies based on a parameter indicative of a likelihood of oscillations in the output voltage.Type: ApplicationFiled: March 12, 2013Publication date: January 9, 2014Applicant: R2 Semiconductor, Inc.Inventors: Pablo Moreno Galbis, James E. C. Brown, Cory Severson
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Publication number: 20130321076Abstract: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One method includes generating, by a switching controller, a switching voltage through controlled closing and opening of a series switch element and a shunt switch element, and generating an output voltage by filtering the switching voltage with an output inductor and a load capacitor. The method further includes generating an assisting current based on a value of current conducted through the output inductor, and assisting the load current by summing the assisting current with the current conducted through the inductor.Type: ApplicationFiled: June 4, 2012Publication date: December 5, 2013Applicant: R2 SEMICONDUCTOR, INC.Inventors: Pablo Moreno Galbis, James E.C. Brown
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Publication number: 20130267187Abstract: Embodiments for at methods, apparatus and systems for operating a voltage regulator are disclosed. One apparatus includes a switching voltage regulator, wherein the switching voltage regulator includes a series switch element, a shunt switch element, a switching controller and a switched output filter. The switching controller is configured to generate a switching voltage through controlled closing and opening of the series switch element and the shunt switch element. The switched output filter filters the switching voltage and generates a regulated output voltage, wherein the switched output filter includes a plurality of capacitors that are selectively included within the switched output filter.Type: ApplicationFiled: June 5, 2013Publication date: October 10, 2013Applicant: R2 SEMICONDUCTOR, INC.Inventors: James E.C. Brown, Daniel Dobkin, Pablo Moreno Galbis, Cory Severson, Lawrence M. Burns