Patents Assigned to Analog Device Global
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Patent number: 10008115Abstract: System and techniques for a visual vehicle parking occupancy sensor are described herein. A color image, including a parking space, is received from a camera. A cascaded search for vehicle features in a hue-saturation-value (HSV) converted version of the color image is performed to produce search results. A search for macro vehicle features in the color image is also performed to produce an indication of found macro vehicle features when the search results are of a first type. An occupancy indicator is provided based on the search results when the search results are of a second type and based on the indication otherwise.Type: GrantFiled: February 29, 2016Date of Patent: June 26, 2018Assignee: Analog Devices GlobalInventor: Raka Singh
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Publication number: 20180175735Abstract: Isolated DC-DC converters and methods for operating the same are described herein. DC-DC converters include a driver that drives a primary winding of a transformer to transmit power to a secondary winding of the transformer across an isolation barrier. In some embodiments, a pair of symmetrical serial capacitors are provided between the driver and the primary winding of a resonant DC-DC converter with an on-chip transformer to slow down variations of a common mode voltage on the primary winding during operation. This in turn can suppress radiation emissions related to time variation rates of the common mode voltage and, and can also improve electromagnetic interference (EMI) performance of the DC-DC converter.Type: ApplicationFiled: December 19, 2016Publication date: June 21, 2018Applicant: Analog Devices GlobalInventors: Tianting Zhao, Baoxing Chen, Yue Zhuo
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Patent number: 10003413Abstract: A method for assigning, in a database, a relationship between at least one logical channel and at least one antenna element feed that is coupleable to at least one antenna element of an antenna arrangement, is described. The method comprises either: applying a first signal to at least one first logical channel; and detecting whether there is a presence of a radio frequency signal converted from the first signal on at least one first antenna element feed; or applying a second signal to at least one first antenna element feed coupleable to at least one first antenna element of the antenna arrangement; and detecting whether there is a presence of a logical signal converted from the second signal on at least one first logical channel. The method further comprises assigning in the database in response thereto a relationship between the at least one first logical channel and the at least one first antenna element feed.Type: GrantFiled: June 5, 2014Date of Patent: June 19, 2018Assignee: Analog Devices GlobalInventors: Conor O'Keeffe, Alex Brophy
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Patent number: 10003267Abstract: Isolated DC-DC converters and methods for operating the same are described herein. DC-DC converters include a driver that drives a primary winding of a transformer to transmit power to a secondary winding of the transformer across an isolation barrier. In some embodiments, a pair of symmetrical serial capacitors are provided between the driver and the primary winding of a resonant DC-DC converter with an on-chip transformer to slow down variations of a common mode voltage on the primary winding during operation. This in turn can suppress radiation emissions related to time variation rates of the common mode voltage and, and can also improve electromagnetic interference (EMI) performance of the DC-DC converter.Type: GrantFiled: December 19, 2016Date of Patent: June 19, 2018Assignee: Analog Devices GlobalInventors: Tianting Zhao, Baoxing Chen, Yue Zhuo
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Publication number: 20180148318Abstract: Suspended microelectromechanical systems (MEMS) devices including a stack of one or more materials over a cavity in a substrate are described. The suspended MEMS device may be formed by forming the stack, which may include one or more electrode layers and an active layer, over the substrate and removing part of the substrate underneath the stack to form the cavity. The resulting suspended MEMS device may include one or more channels that extend from a surface of the device to the cavity and the one or more channels have sidewalls with a spacer material. The cavity may have rounded corners and may extend beyond the one or more channels to form one or more undercut regions. The manner of fabrication may allow for forming the stack layers with a high degree of planarity.Type: ApplicationFiled: November 28, 2016Publication date: May 31, 2018Applicant: Analog Devices GlobalInventors: Michael John Flynn, Paul Lambkin, Seamus Paul Whiston, Christina B. McLoughlin
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Patent number: 9986639Abstract: An integrated electronic component assembly can include an electrically-conductive structure comprising two or more electrically-conductive terminals accessible on an exterior of the integrated electronic component assembly, a first component attachment region for a first component within the integrated electronic component assembly, and a second component attachment region for a second component within the integrated electronic component assembly. The integrated electronic component assembly can include an electrically-conductive magnetically-permeable shield coupled to or defined by the electrically-conductive structure, the electrically-conductive magnetically-permeable shield located between the first and second component attachment regions, including a portion extending in a direction out of a plane defined by the first and second component attachment regions, to suppress magnetic coupling between the first and second components.Type: GrantFiled: June 29, 2015Date of Patent: May 29, 2018Assignee: Analog Devices GlobalInventors: Aldrick S. Limjoco, Michael Cusack, Donal G. O'Sullivan, Patrick John Meehan, Thomas Conway
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Patent number: 9980068Abstract: A method of estimating diaphragm excursion of an electrodynamic loudspeaker may be performed using audio signals. An audio output signal may be applied to a voice coil of the electrodynamic loudspeaker through an output amplifier to produce sound. A detected voice coil current and a determined voice coil voltage may be applied to a linear adaptive digital loudspeaker model that has a plurality of adaptive loudspeaker parameters. The parameter values of the adaptive loudspeaker parameters may be computed based on the linear adaptive digital loudspeaker model and applied to a non-linear state-space model of the electrodynamic loudspeaker. For the non-linear state-space model, a predetermined non-linear function may be applied to at least one of the plurality of received parameter values to compute at least one non-linearity compensated parameter value of the adaptive loudspeaker parameters, to determine an instantaneous excursion of the diaphragm.Type: GrantFiled: November 6, 2013Date of Patent: May 22, 2018Assignee: Analog Devices GlobalInventors: Kim Spetzler Berthelsen, Kasper Strange
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Publication number: 20180139698Abstract: A wireless sensor node is described. The wireless sensor node may include a wake-up circuitry configured to awaken the sensor when a request is received. The sensor may be placed in a sleep mode, thus saving battery usage until a wake-up signal requesting use of the sensor is received. Powering of the wake-up circuitry may be supplied through energy captured using an energy harvester. In one example, the energy for powering the wake-up circuitry is extracted from the same signal used for awakening the sensor. The wireless sensor mode may operate in a passive mode, in which the energy for powering the wake-up circuitry is harvested, or in a power supply-assisted mode, in which some of the power is provided by a power supply. High quality factors filters may be used to increase the signal-to-noise ratio of the wake-up signals, thus improving the node's ability to recognize activation requests.Type: ApplicationFiled: November 10, 2017Publication date: May 17, 2018Applicant: Analog Devices GlobalInventors: Philip P.E. Quinlan, Paul Lambkin
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Patent number: 9960760Abstract: A power stage to generate an output voltage at one of a high reference voltage, an intermediate reference voltage and a low reference voltage, including a first switch stage connecting the output terminal to the high reference voltage, comprising a pair of transistors connected in series along their source-to-drain paths, a first transistor coupled to the output terminal and having its gate biased at the intermediate voltage, a second transistor having a gate that receives a first stage control signal that varies between the high reference voltage and the intermediate reference voltage, a second switch stage connecting the output terminal to the intermediate reference voltage, having a gate that receives a second stage control signal that varies among the high reference voltage, intermediate reference voltage and low reference voltage, a third switch stage connecting the output terminal to the low reference voltage, having a pair of transistors connected in series along their source-to-drain paths, a first trType: GrantFiled: October 25, 2013Date of Patent: May 1, 2018Assignee: Analog Devices GlobalInventor: Dan Li
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Patent number: 9960785Abstract: A latency associated with a receiver circuit, e.g., radio receiver circuit, can be reduced by applying digital data from an analog signal received by a receiver, e.g., a radio receiver, to an automatic gain control circuit without first using a decimation and digital filtering process, which can minimize or eliminate significant latency associated with the decimation and filtering process.Type: GrantFiled: April 6, 2017Date of Patent: May 1, 2018Assignee: Analog Devices GlobalInventor: Keith Anthony O'Donoghue
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Patent number: 9941894Abstract: A multiple output, multiple impedance string digital-to-analog converter (DAC) circuit can provide a first output having a first resolution in response to a first digital input signal and a second output having a second resolution in response to a second digital input signal. A main impedance string and a secondary impedance string can be coupled using switching networks to provide a first DAC output. By coupling additional switches to the main impedance string and by sharing the main impedance string, a second DAC output can be realized.Type: GrantFiled: May 4, 2017Date of Patent: April 10, 2018Assignee: Analog Devices GlobalInventors: Shurong Gu, Dennis A. Dempsey, GuangYang Qu, Hanqing Wang, Tony Yincai Liu
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Patent number: 9941897Abstract: A higher accuracy ADC circuit (e.g., in which the number of bits of the ADC circuit is twelve or greater) may need calibration multiple times during its working life to avoid bit weight errors. Described are techniques to address DAC element ratio errors between DAC element clusters in a DAC circuit in order to maintain the linear performance of analog-to-digital converter (ADC) circuits and digital-to-analog converter (DAC) circuits.Type: GrantFiled: August 31, 2017Date of Patent: April 10, 2018Assignee: Analog Devices GlobalInventors: Hongxing Li, Roberto Sergio Matteo Maurino
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Patent number: 9941565Abstract: An isolator device and a corresponding method of forming the isolator device to include first and second electrodes, a layer of first dielectric material between the first and second electrodes, and at least one region of second dielectric material between the layer of first dielectric material and at least one of the first and second electrodes. The second dielectric material has a higher relative permittivity than the first dielectric material.Type: GrantFiled: October 23, 2015Date of Patent: April 10, 2018Assignee: Analog Devices GlobalInventors: Conor John McLoughlin, Michael John Flynn, Laurence B. O'Sullivan, Shane Geary, Stephen O'Brien, Bernard P. Stenson, Baoxing Chen, Sarah Carroll, Michael Morrissey, Patrick M. McGuinness
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Patent number: 9939464Abstract: The present invention relates to current measurement apparatus 100. The current measurement apparatus 100 comprises a measurement arrangement 110, 114 which is configured to be disposed in relation to a load 108 which draws a current signal, the measurement arrangement being operative when so disposed to measure the load drawn current signal. The current measurement apparatus 100 also comprises a signal source 112 which is operative to apply a reference input signal to the measurement arrangement 110, 114 whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal.Type: GrantFiled: April 14, 2016Date of Patent: April 10, 2018Assignee: Analog Devices GlobalInventors: Stephen James Martin Wood, Jonathan Ephraim David Hurwitz, Seyed Amir Ali Danesh
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Patent number: 9935648Abstract: To reduce the overall reference charge needed to perform operations, analog-to-digital converters can maintain reference voltage connections of the bit trial capacitors of the digital-to-analog converter (DAC) from the end of a current conversion to just prior to the beginning of the next acquisition phase. At the start of the next acquisition phase, the bottom plates of the bit trial capacitors of the DAC can be shorted to generate a common mode voltage. As the conversion phase begins, the bottom plates of the sampling capacitors are disconnected from the input voltage and the bottom plates of each bit trial capacitor are shorted to generate input common-mode voltage. As bit trials progress, the shorts between the bottom plates of the bit trial capacitors are removed and the bit trial results are applied to the bottom plates of the bit trial capacitors.Type: GrantFiled: August 31, 2017Date of Patent: April 3, 2018Assignee: Analog Devices GlobalInventors: Maitrey Kamble, Arvind Madan, Sandeep Monangi
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Patent number: 9933463Abstract: The present invention relates to current measurement apparatus. The current measurement apparatus comprises first and second measurement devices with each of the first and second measurement devices being operative to measure current in a respective one of a live conductor and a neutral conductor substantially simultaneously. The current measurement apparatus is operative to make plural different determinations in dependence on the substantially simultaneous current measurements.Type: GrantFiled: August 5, 2016Date of Patent: April 3, 2018Assignee: Analog Devices GlobalInventors: Seyed Amir Ali Danesh, Jonathan Ephraim David Hurwitz
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Patent number: 9935628Abstract: A transistor switch device is provided that exhibits relatively good voltage capability and relatively easy drive requirements to turn the device on and off. This can reduce transient drive current flows that may perturb other components.Type: GrantFiled: November 10, 2015Date of Patent: April 3, 2018Assignee: Analog Devices GlobalInventor: Edward John Coyne
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Patent number: 9929038Abstract: A method of forming an insulating structure, comprising forming an insulating region comprising at least one electrical or electronic component or part thereof embedded within the insulating region, and forming a surface structure in a surface of the insulating region.Type: GrantFiled: March 7, 2013Date of Patent: March 27, 2018Assignee: Analog Devices GlobalInventor: Laurence Brendan O'Sullivan
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Patent number: 9917558Abstract: Apparatus and methods for a difference amplifier are provided. In certain examples, the difference amplifier can provide high common mode rejection without differential signal attenuation. In an example, a difference amplifier circuit can include first and second amplifiers, first and second buffer amplifiers, a first feedback voltage divider coupled between an output of the first buffer amplifier and an output of the second amplifier, and a second feedback voltage divider coupled between an output of the second buffer amplifier and an output of the first amplifier.Type: GrantFiled: September 13, 2016Date of Patent: March 13, 2018Assignee: Analog Devices GlobalInventor: Andreas Koch
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Patent number: 9912358Abstract: A method of reducing the noise from a transmitter at an associated receiver is disclosed. Noise contributions in active channels are identified and used to update a shared noise cancellation filter. Excluding signals from inactive channels speeds up the filter convergence to a near optimal solution. Sharing a filter across multiple channels reduces component count and power consumption.Type: GrantFiled: October 5, 2015Date of Patent: March 6, 2018Assignee: Analog Devices GlobalInventors: Patrick Joseph Pratt, Peadar Antony Forbes