Patents by Inventor Eugene Cheung
Eugene Cheung 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: 11277106Abstract: A multi-stage transimpedance amplifier (TIA) with an adjustable input linear range is disclosed. The TIA includes a first stage, configured to convert a single-ended current signal from an optical sensor of a receiver signal chain to a single-ended voltage signal, and a second stage, configured to convert the single-ended voltage signal provided by the first stage to a differential signal. In such a TIA, the input linear range may be adjusted using a clamp that is programmable with an output offset current to keep the second stage of the TIA from overloading and to maintain a linear transfer function without compression.Type: GrantFiled: April 23, 2020Date of Patent: March 15, 2022Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANYInventors: Joseph Adut, Jeremy Wong, Eugene Cheung, Brian Hamilton, Gregory Fung
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Publication number: 20220073449Abstract: Provided herein are novel solid forms of each of four compounds: (1) heptadecan-9-yl 8-((2-hydroxyethyl)amino)octanoate (“Compound 1”), (2) heptadecan-9-yl 8-((2-hydroxyethyl)(6-oxo-6-(undecyloxy)hexyl)amino)octanoate (“Compound 2”), (3) heptadecan-9-yl 8-((2-hydroxyethyl)(8-(nonyloxy)-8-oxooctyl)amino)octanoate (“Compound 3”), and (6Z,9Z,28Z,31Z)-heptatriaconta-6,9,28,31-tetraen-19-yl 4-(dimethylamino)butanoate (“MC3”), and related compositions and methods.Type: ApplicationFiled: November 12, 2021Publication date: March 10, 2022Inventors: Orn ALMARSSON, Eugene CHEUNG
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Publication number: 20220031631Abstract: The present disclosure is based, at least in part, on the discovery that high-purity PEG lipids exhibit superior physical and biological properties, particularly when used in lipid nanoparticle (LNP) formulations. Therefore, the present disclosure provides PEG lipids at a recommended purity, e.g., for use in formulations, such as LNP formulations. The present disclosure also provides LNPs comprising the high-purity PEG lipids, and methods for delivering therapeutic agents to a subject using the same.Type: ApplicationFiled: September 19, 2019Publication date: February 3, 2022Applicant: ModernaTX, Inc.Inventors: Örn Almarsson, Jin Lim, Eugene Cheung, Jaclyn Milton
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Patent number: 11203569Abstract: Provided herein are novel solid forms of each of four compounds: (1) heptadecan-9-yl 8-((2-hydroxyethyl)amino)octanoate (“Compound 1”), (2) heptadecan-9-yl 8-((2-hydroxyethyl)(6-oxo-6-(undecyloxy)hexyl)amino)octanoate (“Compound 2”), (3) heptadecan-9-yl 8-((2-hydroxyethyl)(8-(nonyloxy)-8-oxooctyl)amino)octanoate (“Compound 3”), and (6Z,9Z,28Z,31Z)-heptatriaconta-6,9,28,31-tetraen-19-yl 4-(dimethylamino)butanoate (“MC3”), and related compositions and methods.Type: GrantFiled: March 15, 2018Date of Patent: December 21, 2021Assignee: ModernaTX, Inc.Inventors: Orn Almarsson, Eugene Cheung
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Patent number: 10972117Abstract: Differential clamp circuits configured to recirculate the current in one clamp, either low-side clamp or high-side clamp, from one output of a differential signal to the other output of the differential signal are disclosed. Differential clamp circuits described herein may be particularly suitable for providing programmable clamps at differential outputs of an ADC driver and may be particularly beneficial to implement clamps that are symmetrical around an ADC's input common-mode voltage. Some differential clamp circuit described herein may advantageously present a smaller capacitive load at each output, thus reducing bandwidth degradation of the output stage. Furthermore, differential clamp circuits described herein may operate with only one control voltage, making it easier to limit the output excursions symmetrically around the default common-mode voltage.Type: GrantFiled: April 3, 2020Date of Patent: April 6, 2021Assignee: Analog Devices International Unlimited CompanyInventors: Joseph Adut, Jeremy Wong, Eugene Cheung, Brian Hamilton, Gregory Fung
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Publication number: 20210091734Abstract: A multi-stage transimpedance amplifier (TIA) with an adjustable input linear range is disclosed. The TIA includes a first stage, configured to convert a single-ended current signal from an optical sensor of a receiver signal chain to a single-ended voltage signal, and a second stage, configured to convert the single-ended voltage signal provided by the first stage to a differential signal. In such a TIA, the input linear range may be adjusted using a clamp that is programmable with an output offset current to keep the second stage of the TIA from overloading and to maintain a linear transfer function without compression.Type: ApplicationFiled: April 23, 2020Publication date: March 25, 2021Applicant: Analog Devices International Unlimited CompanyInventors: Joseph ADUT, Jeremy WONG, Eugene CHEUNG, Brian HAMILTON, Gregory FUNG
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Publication number: 20210075437Abstract: Differential clamp circuits configured to recirculate the current in one clamp, either low-side clamp or high-side clamp, from one output of a differential signal to the other output of the differential signal are disclosed. Differential clamp circuits described herein may be particularly suitable for providing programmable clamps at differential outputs of an ADC driver and may be particularly beneficial to implement clamps that are symmetrical around an ADC's input common-mode voltage. Some differential clamp circuit described herein may advantageously present a smaller capacitive load at each output, thus reducing bandwidth degradation of the output stage. Furthermore, differential clamp circuits described herein may operate with only one control voltage, making it easier to limit the output excursions symmetrically around the default common-mode voltage.Type: ApplicationFiled: April 3, 2020Publication date: March 11, 2021Applicant: Analog Devices International Unlimited CompanyInventors: Joseph ADUT, Jeremy WONG, Eugene CHEUNG, Brian HAMILTON, Gregory FUNG
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Publication number: 20200131116Abstract: Provided herein are novel solid forms of each of four compounds: (1) heptadecan-9-yl 8-((2-hydroxyethyl)amino)octanoate (“Compound 1”), (2) heptadecan-9-yl 8-((2-hydroxyethyl)(6-oxo-6-(undecyloxy)hexyl)amino)octanoate (“Compound 2”), (3) heptadecan-9-yl 8-((2-hydroxyethyl)(8-(nonyloxy)-8-oxooctyl)amino)octanoate (“Compound 3”), and (6Z,9Z,28Z,31Z)-heptatriaconta-6,9,28,31-tetraen-19-yl 4-(dimethylamino)butanoate (“MC3”), and related compositions and methods.Type: ApplicationFiled: March 15, 2018Publication date: April 30, 2020Inventors: Orn ALMARSSON, Eugene CHEUNG
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Publication number: 20060164065Abstract: An analog control circuit is coupled to an apparatus having a variable characteristic over an operating range. A sensing circuit is coupled to the apparatus and the control circuit during the range of operation of the apparatus and is operative to sense the variable characteristic. The operating parameter of the apparatus is controlled to be set at a level corresponding to a prescribed criterion, which may be a maximum or minimum, of the characteristic sensed over the range of operation.Type: ApplicationFiled: October 20, 2005Publication date: July 27, 2006Inventors: Talbott Hoouk, Joseph Duncan, Eugene Cheung
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Publication number: 20060097705Abstract: Pulse width modulation of the connection of a load output terminal to a power supply terminal is effected. In response to a first level of the pulse width modulated signal, the load is disconnected from the power supply terminal, steady-state load voltage is preserved on a capacitor connected between a load output terminal and a power supply terminal, and steady-state load current information is held on a capacitor within the feedback loop. In response to a second level of the pulse width modulated signal, the load is reconnected to the power supply terminal, and load voltage and current instantaneously resume at their correct steady-state values.Type: ApplicationFiled: November 5, 2004Publication date: May 11, 2006Inventors: Eugene Cheung, Talbott Houk
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Patent number: D751559Type: GrantFiled: May 18, 2015Date of Patent: March 15, 2016Assignee: Apple Inc.Inventors: Kristina A. Babiarz, Jeremy Bataillou, Eugene Cheung, Sean Stewart Corbin, Daniel J. Coster, Stephen McClure, John Raff
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Patent number: D893491Type: GrantFiled: August 21, 2018Date of Patent: August 18, 2020Assignee: Apple Inc.Inventors: Jody Akana, Bartley K. Andre, Kristina A. Babiarz, Jeremy Bataillou, Eugene Cheung, Sean Stewart Corbin, Daniel J. Coster, Daniele De Iuliis, M. Evans Hankey, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Duncan Robert Kerr, Stephen McClure, Shin Nishibori, John Raff, Matthew Dean Rohrbach, Peter Russell-Clarke, Mikael Silvanto, Christopher J. Stringer, Eugene Antony Whang, Rico Zörkendörfer
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Patent number: D1001134Type: GrantFiled: February 18, 2011Date of Patent: October 10, 2023Assignee: Apple Inc.Inventors: Jody Akana, Bartley K. Andre, Jeremy Bataillou, Eugene Cheung, Sean Stewart Corbin, Daniel J. Coster, Daniele De Iuliis, Evans Hankey, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Duncan Robert Kerr, Stephen McClure, Shin Nishibori, Benjamin Mark Rappoport, Matthew Dean Rohrbach, Peter Russell-Clarke, Christopher J. Stringer, Eugene Antony Whang, Rico Zorkendorfer