Patents by Inventor Anand Chamakura
Anand Chamakura 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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Method for detecting gestures using a multi-segment photodiode and one or fewer illumination sources
Patent number: 10521017Abstract: A gesture sensing device includes a multiple segmented photo sensor and a control circuit for processing sensed voltages output from the sensor. The control circuit processes the sensed voltage signals to determine target motion relative to the segmented photo sensor. The control circuit includes an algorithm configured to calculate one of more differential analog signals using the sensed voltage signals output from the segmented photo sensors. A vector is determined according to the calculated differential analog signals, the vector is used to determine a direction and/or velocity of the target motion.Type: GrantFiled: January 4, 2016Date of Patent: December 31, 2019Assignee: Maxim Integrated Products, Inc.Inventors: David Skurnik, Nevzat A. Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher F. Edwards, Nicole D. Kerness, Pirooz Parvarandeh, Sunny K. Hsu -
Patent number: 10429236Abstract: A gesture sensing device includes a single light source and a multiple segmented single photo sensor, or an array of photo sensors, collectively referred to herein as segmented photo sensors. A light modifying structure relays reflected light from the light source onto different segments of the segmented photo sensors. The light modifying structure can be an optical lens structure or a mechanical structure. The different segments of the photo sensor sense reflected light and output corresponding sensed voltage signals. A control circuit receives and processes the sensed voltage signals to determine target motion relative to the segmented photo sensor.Type: GrantFiled: March 21, 2014Date of Patent: October 1, 2019Assignee: MAXIM INTEGRATED PRODUCTS, INC.Inventors: David Skurnik, Nevzat A. Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher F. Edwards, Nicole D. Kerness, Pirooz Parvarandeh, Sunny K. Hsu
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Patent number: 10203411Abstract: Aspects of the disclosure pertain to a system and method for reducing ambient light sensitivity of Infrared (IR) detectors. Optical filter(s) (e.g., absorption filter(s), interference filter(s)) placed over a sensor of the IR detector (e.g., gesture sensor) absorb or reflect visible light, while passing specific IR wavelengths, for promoting the reduced ambient light sensitivity of the IR detector.Type: GrantFiled: October 30, 2013Date of Patent: February 12, 2019Assignee: MAXIM INTEGRATED PRODUCTS, INC.Inventors: Joy T. Jones, Nicole D. Kerness, Sunny K. Hsu, Anand Chamakura, Christopher F. Edwards, David Skurnik, Phillip J. Benzel, Nevzat A. Kestelli
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Patent number: 9851327Abstract: A micro electrochemical cell, a micro electrochemical gas sensor, and a method for fabrication of the micro electrochemical cell are described that include a photopatternable glass substrate, two or more embedded electrodes integrated with through-glass vias, and a gas-permeable membrane lid. In an implementation, a micro electrochemical cell includes a photopatternable glass substrate; at least one recess formed in the photopatternable glass substrate; a plurality of through-glass vias formed in the photopatternable glass substrate, at least one electrolyte disposed in the at least one recess; a wicking layer disposed over the at least one electrolyte; and a lid assembly.Type: GrantFiled: September 26, 2014Date of Patent: December 26, 2017Assignee: Maxim Integrated Products, Inc.Inventors: Dan G. Allen, Anand Chamakura, Christopher F. Edwards
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Patent number: 9354111Abstract: A wafer level optical device, system, and method are described that include a substrate, an electronic device disposed on the substrate, an illumination source disposed on the electronic device, an enclosure disposed on the substrate, where the enclosure includes at least one optical surface and covers the electronic device and the illumination source, and at least one solder ball disposed on a side of the substrate distal from the electronic device. In implementations, a process for using the wafer level optical device and lens-integrated package system that employ the techniques of the present disclosure includes receiving a substrate, placing an electronic device on the substrate, placing an illumination source on the electronic device, and placing an enclosure on the substrate, where the enclosure covers the electronic device and the illumination source, and the enclosure and a wall structure form a first compartment and a second compartment.Type: GrantFiled: May 14, 2014Date of Patent: May 31, 2016Assignee: Maxim Integrated Products, Inc.Inventors: Nicole D. Kerness, Arkadii V. Samoilov, Jerome C. Bhat, Anand Chamakura, Kumar Nagarajan, Christopher F. Edwards
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Method for detecting gestures using a multi-segment photodiode and one or fewer illumination sources
Patent number: 9229581Abstract: A gesture sensing device includes a multiple segmented photo sensor and a control circuit for processing sensed voltages output from the sensor. The control circuit processes the sensed voltage signals to determine target motion relative to the segmented photo sensor. The control circuit includes an algorithm configured to calculate one of more differential analog signals using the sensed voltage signals output from the segmented photo sensors. A vector is determined according to the calculated differential analog signals, the vector is used to determine a direction and/or velocity of the target motion.Type: GrantFiled: January 17, 2012Date of Patent: January 5, 2016Assignee: Maxim Integrated Products, Inc.Inventors: David Skurnik, Nevzat Akin Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher Francis Edwards, Nicole Kerness, Pirooz Parvarandeh, Sunny Kweisun Hsu -
Publication number: 20150346138Abstract: A micro electrochemical cell, a micro electrochemical gas sensor, and a method for fabrication of the micro electrochemical cell are described that include a photopatternable glass substrate, two or more embedded electrodes integrated with through-glass vias, and a gas-permeable membrane lid. In an implementation, a micro electrochemical cell includes a photopatternable glass substrate; at least one recess formed in the photopatternable glass substrate; a plurality of through-glass vias formed in the photopatternable glass substrate, at least one electrolyte disposed in the at least one recess; a wicking layer disposed over the at least one electrolyte; and a lid assembly.Type: ApplicationFiled: September 26, 2014Publication date: December 3, 2015Inventors: Dan G. Allen, Anand Chamakura, Christopher F. Edwards
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Publication number: 20150109785Abstract: A wafer level optical device, system, and method are described that include a substrate, an electronic device disposed on the substrate, an illumination source disposed on the electronic device, an enclosure disposed on the substrate, where the enclosure includes at least one optical surface and covers the electronic device and the illumination source, and at least one solder ball disposed on a side of the substrate distal from the electronic device. In implementations, a process for using the wafer level optical device and lens-integrated package system that employ the techniques of the present disclosure includes receiving a substrate, placing an electronic device on the substrate, placing an illumination source on the electronic device, and placing an enclosure on the substrate, where the enclosure covers the electronic device and the illumination source, and the enclosure and a wall structure form a first compartment and a second compartment.Type: ApplicationFiled: May 14, 2014Publication date: April 23, 2015Applicant: Maxim Integrated Products, Inc.Inventors: Nicole D. Kerness, Arkadii V. Samoilov, Jerome C. Bhat, Anand Chamakura, Kumar Nagarajan, Christopher F. Edwards
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Patent number: 8921158Abstract: Semiconductor devices are described that are configured to have a state of operation defined by a connection between at least one inner bump assembly and a selected outer bump assembly. In an implementation, the semiconductor device, which may be a wafer-level (chip-scale) package semiconductor device, includes an integrated circuit chip, a plurality of outer bump assemblies disposed on the chip, and one or more inner bump assemblies disposed on the chip so that the inner bump assemblies are at least partially surrounded by the outer bump assemblies. At least one of the inner bump assemblies is configured to be connected to a selected outer bump assembly to cause the integrated circuit chip to have a desired state of operation.Type: GrantFiled: September 20, 2013Date of Patent: December 30, 2014Assignee: Maxim Integrated Products, Inc.Inventors: Kymberly T. Christman, Roderick B. Hogan, Anand Chamakura
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Patent number: 8854113Abstract: Techniques are described to mirror currents and subtract currents accurately. In an implementation, a circuit includes a first current source coupled to a first node to provide a current IPD1 and a current mirror coupled to the first node through a first switch T1 to provide a current IREF1. In a closed configuration, the current IREF1 flows from the current mirror into the first node. A sigma delta modulator controls the switch T1 such that over a period of time an average current flowing from the current mirror into the first node is equal to the current IPD1 flowing out of the first node. The sigma delta modulator generates a digital output to control switch T2 to allow a current IREF2 into a second node, thus subtracting a portion of a current IPD2 at the second node over a period of time.Type: GrantFiled: October 7, 2013Date of Patent: October 7, 2014Assignee: Maxim Integrated Products, Inc.Inventor: Anand Chamakura
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Publication number: 20140284462Abstract: A gesture sensing device includes a single light source and a multiple segmented single photo sensor, or an array of photo sensors, collectively referred to herein as segmented photo sensors. A light modifying structure relays reflected light from the light source onto different segments of the segmented photo sensors. The light modifying structure can be an optical lens structure or a mechanical structure. The different segments of the photo sensor sense reflected light and output corresponding sensed voltage signals. A control circuit receives and processes the sensed voltage signals to determine target motion relative to the segmented photo sensor.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: Maxim Integrated Products, Inc.Inventors: David Skurnik, Nevzat A. Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher F. Edwards, Nicole D. Kerness, Pirooz Parvarandeh, Sunny K. Hsu
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Publication number: 20140124797Abstract: Aspects of the disclosure pertain to a system and method for reducing ambient light sensitivity of Infrared (IR) detectors. Optical filter(s) (e.g., absorption filter(s), interference filter(s)) placed over a sensor of the IR detector (e.g., gesture sensor) absorb or reflect visible light, while passing specific IR wavelengths, for promoting the reduced ambient light sensitivity of the IR detector.Type: ApplicationFiled: October 30, 2013Publication date: May 8, 2014Applicant: Maxim Integrated Products, Inc.Inventors: Joy T. Jones, Nicole D. Kerness, Sunny K. Hsu, Anand Chamakura, Christopher F. Edwards, David Skurnik, Phillip J. Benzel, Nevzat A. Kestelli
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Patent number: 8716649Abstract: A gesture sensing device includes a single light source and a multiple segmented single photo sensor, or an array of photo sensors, collectively referred to herein as segmented photo sensors. A light modifying structure relays reflected light from the light source onto different segments of the segmented photo sensors. The light modifying structure can be an optical lens structure or a mechanical structure. The different segments of the photo sensor sense reflected light and output corresponding sensed voltage signals. A control circuit receives and processes the sensed voltage signals to determine target motion relative to the segmented photo sensor.Type: GrantFiled: November 25, 2011Date of Patent: May 6, 2014Assignee: Maxim Integrated Products, Inc.Inventors: David Skurnik, Nevzat Akin Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher Francis Edwards, Nicole Kerness, Pirooz Parvarandeh, Sunny Kweisun Hsu
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Publication number: 20140035812Abstract: A gesture sensing device having a single illumination source is disclosed. In one or more implementations, the gesture sensing device includes a single illumination source configured to emit light and a light sensor assembly configured to detect the light reflected from an object and to output time dependent signals in response thereto. The gesture sensing device also includes a processing circuit coupled to the light sensor assembly and configured to analyze the time dependent signals received from the light sensor assembly to determine object directional movement proximate to the light sensor assembly.Type: ApplicationFiled: October 8, 2013Publication date: February 6, 2014Applicant: Maxim Integrated Products, Inc.Inventors: David Skurnik, Nevzat A. Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher F. Edwards, Nicole D. Kerness, Pirooz Parvarandeh, Sunny K. Hsu, Judy Lau, Ronald B. Koo, Daniel S. Christman, Richard I. Olsen
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Patent number: 8575971Abstract: Techniques are described to mirror currents and subtract currents accurately. In an implementation, a circuit includes a first current source coupled to a first node to provide a current IPD1 and a current mirror coupled to the first node through a first switch T1 to provide a current IREF1. In a closed configuration, the current IREF1 flows from the current mirror into the first node. A sigma delta modulator controls the switch T1 such that over a period of time an average current flowing from the current mirror into the first node is equal to the current IPD1 flowing out of the first node. The sigma delta modulator generates a digital output to control switch T2 to allow a current IREF2 into a second node, thus subtracting a portion of a current IPD2 at the second node over a period of time.Type: GrantFiled: January 18, 2013Date of Patent: November 5, 2013Assignee: Maxim Integrated Products, Inc.Inventor: Anand Chamakura
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Patent number: 8384443Abstract: Techniques are described to mirror currents and subtract currents accurately. In an implementation, a circuit includes a first current source coupled to a first node to provide a current IPD1 and a current mirror coupled to the first node through a first switch T1 to provide a current IREF1. In a closed configuration, the current IREF1 flows from the current mirror into the first node. A sigma delta modulator controls the switch T1 such that over a period of time an average current flowing from the current mirror into the first node is equal to the current IPD1 flowing out of the first node. The sigma delta modulator generates a digital output to control switch T2 to allow a current IREF2 into a second node, thus subtracting a portion of a current IPD2 at the second node over a period of time.Type: GrantFiled: January 27, 2011Date of Patent: February 26, 2013Assignee: Maxim Integrated Products, Inc.Inventor: Anand Chamakura
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METHOD FOR DETECTING GESTURES USING A MULTI-SEGMENT PHOTODIODE AND ONE OR FEWER ILLUMINATION SOURCES
Publication number: 20120280904Abstract: A gesture sensing device includes a multiple segmented photo sensor and a control circuit for processing sensed voltages output from the sensor. The control circuit processes the sensed voltage signals to determine target motion relative to the segmented photo sensor. The control circuit includes an algorithm configured to calculate one of more differential analog signals using the sensed voltage signals output from the segmented photo sensors. A vector is determined according to the calculated differential analog signals, the vector is used to determine a direction and/or velocity of the target motion.Type: ApplicationFiled: January 17, 2012Publication date: November 8, 2012Applicant: MAXIM INTEGRATED PRODUCTS, INC.Inventors: David Skurnik, Nevzat Akin Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher Francis Edwards, Nicole Kerness, Pirooz Parvarandeh, Sunny Kweisun Hsu -
Publication number: 20120280107Abstract: A gesture sensing device includes a single light source and a multiple segmented single photo sensor, or an array of photo sensors, collectively referred to herein as segmented photo sensors. A light modifying structure relays reflected light from the light source onto different segments of the segmented photo sensors. The light modifying structure can be an optical lens structure or a mechanical structure. The different segments of the photo sensor sense reflected light and output corresponding sensed voltage signals. A control circuit receives and processes the sensed voltage signals to determine target motion relative to the segmented photo sensor.Type: ApplicationFiled: November 25, 2011Publication date: November 8, 2012Applicant: MAXIM INTEGRATED PRODUCTS, INC.Inventors: David Skurnik, Nevzat Akin Kestelli, Ilya K. Veygman, Anand Chamakura, Christopher Francis Edwards, Nicole Kerness, Pirooz Parvarandeh, Sunny Kweisun Hsu
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Publication number: 20120194264Abstract: Techniques are described to mirror currents and subtract currents accurately. In an implementation, a circuit includes a first current source coupled to a first node to provide a current IPD1 and a current mirror coupled to the first node through a first switch T1 to provide a current IREF1. In a closed configuration, the current IREF1 flows from the current mirror into the first node. A sigma delta modulator controls the switch T1 such that over a period of time an average current flowing from the current mirror into the first node is equal to the current IPD1 flowing out of the first node. The sigma delta modulator generates a digital output to control switch T2 to allow a current IREF2 into a second node, thus subtracting a portion of a current IPD2 at the second node over a period of time.Type: ApplicationFiled: January 27, 2011Publication date: August 2, 2012Applicant: MAXIM INTEGRATED PRODUCTS, INC.Inventor: Anand Chamakura