Patents by Inventor Stefan Williams
Stefan Williams 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: 20210344375Abstract: Disclosed embodiments relate to isolation methods for full-duplex communication. In one example, a full-duplex antenna system includes a Tx (transmit) signal path including one or more elements each, means a power amplifier, one or more filters, and a Tx port of a Tx patch antenna operating at a Tx frequency band to transmit an outgoing signal to a satellite, the one or more elements each further including an Rx (receive) signal path including a low noise amplifier driven by an Rx port of an Rx patch antenna operating at an Rx frequency band to receive an incoming signal from the satellite, the Rx frequency band being separated by a guard band from the Tx frequency band, wherein the filters together with a physical separation between the Tx and Rx signal paths provide sufficient isolation to reduce coupling between the Tx signal path and the Rx signal path, allowing the full-duplex antenna system to operate in full-duplex.Type: ApplicationFiled: March 31, 2021Publication date: November 4, 2021Inventors: Stefan William Turkowski, Amin Reda, Siamak Ebadi, Andres Felipe Osorio
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Patent number: 11165490Abstract: Disclosed embodiments relate to modular antenna systems. In one example, an antenna system includes M user terminal elements, each being application-agnostic and including an antenna either to generate an incoming signal in response to incident satellite radio waves or to transmit an outgoing signal, and an active circuit to process the incoming and outgoing signals, a control circuit to control the processing performed by the M active circuits, and N user terminal modules (UTM) each including a daisy-chain of O of the M active circuits, each UTM further including a buffer placed after every P active circuits in order to correct any degradation that has occurred in the daisy-chain, and wherein M can be adjusted so that an antenna area and a corresponding throughput and bandwidth available to an application are adjustable and scalable.Type: GrantFiled: October 30, 2020Date of Patent: November 2, 2021Assignee: UTVATE CorporationInventors: Siamak Ebadi, Stefan William Turkowski, Andres Felipe Osorio, Amin Reda
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Publication number: 20210226693Abstract: Disclosed embodiments relate to modular antenna systems. In one example, an antenna system includes M user terminal elements, each being application-agnostic and including an antenna either to generate an incoming signal in response to incident satellite radio waves or to transmit an outgoing signal, and an active circuit to process the incoming and outgoing signals, a control circuit to control the processing performed by the M active circuits, and N user terminal modules (UTM) each including a daisy-chain of 0 of the M active circuits, each UTM further including a buffer placed after every P active circuits in order to correct any degradation that has occurred in the daisy-chain, and wherein M can be adjusted so that an antenna area and a corresponding throughput and bandwidth available to an application are adjustable and scalable.Type: ApplicationFiled: October 30, 2020Publication date: July 22, 2021Inventors: Siamak Ebadi, Stefan William Turkowski, Andres Felipe Osorio, Amin Reda
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Publication number: 20210226334Abstract: Disclosed embodiments relate to communicating with satellites at any elevation. In one example, an antenna system includes two or more user terminal panels (UTPs). Each of the UTPs include multiple user terminal modules (UTMs). The UTPs may be arranged in either a fixed, an adjustable geometry or a combination thereof. A UTM has multiple user terminal elements (UTEs) that include antennas and active circuits. An antenna may either generate an incoming signal in response to incident radio waves received from a satellite and/or may transmit an outgoing signal toward the satellite. Each active circuit is configured to process the incoming and outgoing signals. Also, the antenna system may include a control circuit configured to control signal processing performed by the active circuits. The UTPs may be operably connected to a single satellite, or different UTPs may be operably connected to different satellites.Type: ApplicationFiled: November 20, 2020Publication date: July 22, 2021Inventors: Amin Reda, Siamak Ebadi, Andres Felipe Osorio, Stefan William Turkowski
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Patent number: 11005519Abstract: Disclosed embodiments relate to isolation methods for full-duplex communication. In one example, a full-duplex antenna system includes a Tx (transmit) signal path including one or more elements each, means a power amplifier, one or more filters, and a Tx port of a Tx patch antenna operating at a Tx frequency band to transmit an outgoing signal to a satellite, the one or more elements each further including an Rx (receive) signal path including a low noise amplifier driven by an Rx port of an Rx patch antenna operating at an Rx frequency band to receive an incoming signal from the satellite, the Rx frequency band being separated by a guard band from the Tx frequency band, wherein the filters together with a physical separation between the Tx and Rx signal paths provide sufficient isolation to reduce coupling between the Tx signal path and the Rx signal path, allowing the full-duplex antenna system to operate in full-duplex.Type: GrantFiled: December 11, 2020Date of Patent: May 11, 2021Assignee: UTVATE CorporationInventors: Stefan William Turkowski, Amin Reda, Siamak Ebadi, Andres Felipe Osorio
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Patent number: 10356522Abstract: This application describes methods and apparatus for loudspeaker protection. A loudspeaker protection system (100) is described having a first frequency band-splitter (102) for splitting an input audio signal (Vin) into a plurality of audio signals (v1, v2 . . . , vn) in different respective frequency bands (?1, ?2 . . . , ?n). A first gain block (103) is configured to apply a respective frequency band gain (g1, g2 . . . , g3) to each of the audio signals in the different respective frequency bands and a gain controller (107, 108, 109) is provided for controlling the respective band gains. A displacement modeller (104, 105) determines a plurality of displacement signals (x1, x2 . . . , xn) based on the input audio signal (Vin) and a displacement model (104a) where each displacement signal corresponds to a modelled cone displacement for the loudspeaker for one of said different respective frequency bands.Type: GrantFiled: February 1, 2016Date of Patent: July 16, 2019Assignee: Cirrus Logic, Inc.Inventors: Jason William Lawrence, Roberto Napoli, Roger Serwy, Jie Su, Stefan Williams, Rong Hu, Firas Azrai
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Patent number: 10356521Abstract: This application describes methods and apparatus for loudspeaker protection. A loudspeaker protection system (1100) is described having a first frequency band-splitter (102) for splitting an input audio signal (Vin) into a plurality of audio signals (v1, v2 . . . ,vn) in different respective frequency bands (?1, ?2 . . . ??). A first gain block (103) is configured to apply a respective frequency band gain (gt1, gt2 . . . ,gt3) to each of the audio signals in the different respective frequency bands and a gain controller (109; 1101) is provided for controlling the respective band gains. A thermal controller (1101) determines, for each of a plurality of the different respective frequency bands, a power dissipation for the loudspeaker in that frequency band and also determines a respective thermal gain setting based on the determined power dissipation for that frequency band. The gain controller is configured to control the respective frequency band gains based on the thermal gain settings.Type: GrantFiled: February 1, 2016Date of Patent: July 16, 2019Assignee: Cirrus Logic, Inc.Inventors: Jason William Lawrence, Roberto Napoli, Roger David Serwy, Jie Su, Stefan Williams, Rong Hu, Firas Azrai
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Patent number: 10219074Abstract: A method of thermal protection of a voice coil of a loudspeaker comprises: determining an estimate of a temperature of the voice coil, determining an estimate of a rate of change of the temperature of the voice coil, determining an estimate of power dissipation in the voice coil, and generating a gain control signal for modulating a gain applied to an input signal in a signal path between an input terminal and the loudspeaker. The gain control signal is generated as a function of all of the estimate of the temperature of the voice coil, the estimate of the rate of change of the temperature of the voice coil, and the estimate of the power dissipation in the voice coil.Type: GrantFiled: January 24, 2018Date of Patent: February 26, 2019Assignee: Cirrus Logic, Inc.Inventors: Roberto Napoli, Stefan Williams
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Publication number: 20180213322Abstract: A method of thermal protection of a voice coil of a loudspeaker comprises: determining an estimate of a temperature of the voice coil, determining an estimate of a rate of change of the temperature of the voice coil, determining an estimate of power dissipation in the voice coil, and generating a gain control signal for modulating a gain applied to an input signal in a signal path between an input terminal and said loudspeaker. The gain control signal is generated as a function of all of said estimate of the temperature of the voice coil, said estimate of the rate of change of the temperature of the voice coil, and said estimate of the power dissipation in the voice coil.Type: ApplicationFiled: January 24, 2018Publication date: July 26, 2018Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Roberto NAPOLI, Stefan WILLIAMS
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Publication number: 20180014121Abstract: This application describes methods and apparatus for loudspeaker protection. A loudspeaker protection system (100) is described having a first frequency band-splitter (102) for splitting an input audio signal (Vin) into a plurality of audio signals (v1, v2 . . . , vn) in different respective frequency bands (?1, ?2 . . . , ?n). A first gain block (103) is configured to apply a respective frequency band gain (g1, g2 . . . , g3) to each of the audio signals in the different respective frequency bands and a gain controller (107, 108, 109) is provided for controlling the respective band gains. A displacement modeller (104, 105) determines a plurality of displacement signals (x1, x2 . . . , xn) based on the input audio signal (Vin) and a displacement model (104a) where each displacement signal corresponds to a modelled cone displacement for the loudspeaker for one of said different respective frequency bands.Type: ApplicationFiled: February 1, 2016Publication date: January 11, 2018Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Jason William LAWRENCE, Roberto NAPOLI, Roger SERWY, Jie SU, Stefan WILLIAMS, Rong HU, Firas AZRAI
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Publication number: 20180014120Abstract: This application describes methods and apparatus for loudspeaker protection. A loudspeaker protection system (1100) is described having a first frequency band-splitter (102) for splitting an input audio signal (Vin) into a plurality of audio signals (v1, v2 . . . ,vn) in different respective frequency bands (?1, ?2 . . . ??). A first gain block (103) is configured to apply a respective frequency band gain (gt1, gt2 . . . ,gt3) to each of the audio signals in the different respective frequency bands and a gain controller (109; 1101) is provided for controlling the respective band gains. A thermal controller (1101) determines, for each of a plurality of the different respective frequency bands, a power dissipation for the loudspeaker in that frequency band and also determines a respective thermal gain setting based on the determined power dissipation for that frequency band. The gain controller is configured to control the respective frequency band gains based on the thermal gain settings.Type: ApplicationFiled: February 1, 2016Publication date: January 11, 2018Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Jason William LAWRENCE, Roberto NAPOLI, Roger David SERWY, Jie SU, Stefan WILLIAMS, Rong HU, Firas AZRAI
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Patent number: 9495701Abstract: A system for decentralized ordering of goods and/or services such as food and/or drinks at a venue such as a hotel or restaurant is disclosed. The venue uploads a venue menu to an internet site via the venue's data device or computer. An order application is downloaded by prospective customers from the internet site to the mobile data device of each customer. In addition, the venue allocates a customer identification code to each customer which is stored in the customer's mobile data device. Therefore the customer can use his mobile data device to access the venue's menu and order items from the menu. Preferably the customer notifies his location within the venue and the order is delivered to the customer's location.Type: GrantFiled: April 3, 2012Date of Patent: November 15, 2016Assignee: AirService Digital Pty LtdInventors: Dominic Robert Bressan, Stefan Williams
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Publication number: 20140201644Abstract: A method and apparatus for producing a result digital image from a selection of a plurality of original digital images.Type: ApplicationFiled: July 24, 2013Publication date: July 17, 2014Applicant: Campaigntrack pty ItdInventor: Dirk Stefan Williams
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Publication number: 20140052551Abstract: A system for decentralized ordering of goods and/or services such as food and/or drinks at a venue such as a hotel or restaurant is disclosed. The venue uploads a venue menu to an internet site via the venue's data device or computer. An order application is downloaded by prospective customers from the internet site to the mobile data device of each customer. In addition, the venue allocates a customer identification code to each customer which is stored in the customer's mobile data device. Therefore the customer can use his mobile data device to access the venue's menu and order items from the menu. Preferably the customer notifies his location within the venue and the order is delivered to the customer's location.Type: ApplicationFiled: April 3, 2012Publication date: February 20, 2014Inventors: Dominic Robert Bressan, Stefan Williams