Patents by Inventor Siddharth Joshi
Siddharth Joshi 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: 20240088623Abstract: An integrated emitter device incudes a silicon die, including an array of control circuits, and a plurality of integrated emitter modules disposed on the silicon die. Each integrated emitter module includes a single epitaxial stack comprising multiple layers of III-V semiconductor compounds, which define a vertical emitter including an optically active layer and upper and lower distributed Bragg reflectors (DBRs) on opposing sides of the optically active layer, and a transistor in series with the vertical emitter and including a terminal in contact with a respective one of the control circuits, so as to actuate the vertical emitter in response to a control signal applied to the terminal by the respective one of the control circuits.Type: ApplicationFiled: September 14, 2022Publication date: March 14, 2024Inventors: Siddharth Joshi, Keith Lyon, Arnaud Laflaquière, Christophe Verove
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Publication number: 20240079440Abstract: A multispectral sensing device includes a first die, including silicon, which is patterned to define a first array of sensor elements, which output first electrical signals in response to optical radiation that is incident on the device in a band of wavelengths less than 1000 nm that is incident on the front side of the first die. A second die has its first side bonded to the back side of the first die and includes a photosensitive material and is patterned to define a second array of sensor elements, which output second electrical signals in response to the optical radiation that is incident on the device in a second band of wavelengths greater than 1000 nm that passes through the first die and is incident on the first side of the second die. Readout circuitry reads the first electrical signals and the second electrical signals serially out of the device.Type: ApplicationFiled: September 6, 2022Publication date: March 7, 2024Inventors: Oray O. Cellek, Fei Tan, Gershon Rosenblum, Hong Wei Lee, Cheng-Ying Tsai, Jae Y. Park, Christophe Verove, John L Orlowski, Siddharth Joshi, Xiangli Li, David Coulon, Xiaofeng Fan, Keith Lyon, Nicolas Hotellier, Arnaud Laflaquière
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Publication number: 20240070366Abstract: A package substrate stack modeler includes a manufacturing modeler, configured to generate a model of a real package substrate stack based on an ideal design of the package substrate stack; a signal integrity model, configured to determine a signal integrity of a metal trace of the real package substrate stack; and a yield model, configured to determine a yield of the real package substrate stack; wherein the metal trace comprises a first value of a trace variable; further comprising a processor, configured to select a second value of the trace variable of the metal trace based on the determined signal integrity of the metal trace or the determined yield of the package substrate stack model.Type: ApplicationFiled: August 25, 2022Publication date: February 29, 2024Inventors: Nicholas HAEHN, Raquel DE SOUZA BORGES FERREIRA, Siddharth ALUR, Prakaram JOSHI, Dhanya ATHREYA, Yidnekachew MEKONNEN, Ali HARIRI, Andrea NICOLAS, Sri Chaitra Jyotsna CHAVALI, Kemal AYGUN
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Publication number: 20230085957Abstract: An optoelectronic device includes a base chip, including a silicon die having a photodiode disposed at its front surface and a first anode contact and a first cathode contact disposed on the front surface. A laser diode driver circuit on the silicon die supplies an electrical drive signal between the first anode contact and the first cathode contact. An emitter chip includes a III-V semiconductor die, which is mounted with its front side facing toward the front surface of the silicon die. A second anode contact and a second cathode contact are disposed on the front side of the III-V semiconductor die in electrical communication with the first anode contact and the first cathode contact. A VCSEL is disposed on the front side of the III-V semiconductor die in coaxial alignment with the photodiode and receives the drive signal from the second anode contact and the second cathode contact.Type: ApplicationFiled: July 18, 2022Publication date: March 23, 2023Inventors: Nicolas Hotellier, Arnaud Laflaquière, Christophe Verove, Fei Tan, Siddharth Joshi
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Patent number: 11443232Abstract: Techniques for active learning-based data labeling are described. An active learning-based data labeling service enables a user to build and manage large, high accuracy datasets for use in various machine learning systems. Machine learning may be used to automate annotation and management of the datasets, increasing efficiency of labeling tasks and reducing the time required to perform labeling. Embodiments utilize active learning techniques to reduce the amount of a dataset that requires manual labeling. As subsets of the dataset are labeled, this label data is used to train a model which can then identify additional objects in the dataset without manual intervention. The label data can be added to an augmented manifest, the augmented manifest can be used to filter the dataset to perform further labeling jobs on the same or different subsets of the dataset.Type: GrantFiled: March 29, 2019Date of Patent: September 13, 2022Assignee: Amazon Technologies, Inc.Inventors: Zahid Rahman, Wei Xiao, Stefano Stefani, Rahul Sharma, Siddharth Joshi
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Publication number: 20210212564Abstract: An assembly and system for collection and assessment of physiological data is provided. The assembly includes a physiological data acquisition module that may be used in combination with a head harness for the collection, recordation, storage and transmission of quality physiological data. The assembly integrates easy to use, self-applied electrodes in a user-friendly system resulting in less data artifacts than commonly seen in conventional methods and techniques for collecting physiological data. The assembly and system captures high-quality physiological data for display, storage, processing and analysis.Type: ApplicationFiled: March 26, 2021Publication date: July 15, 2021Inventors: Philip Low, Yu M. Chi, Siddharth Joshi, Christopher Uebelher, Yvon A. Dubois, Kevin Liu
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Patent number: 11048979Abstract: Techniques for active learning-based data labeling are described. An active learning-based data labeling service enables a user to build and manage large, high accuracy datasets for use in various machine learning systems. Machine learning may be used to automate annotation and management of the datasets, increasing efficiency of labeling tasks and reducing the time required to perform labeling. Embodiments utilize active learning techniques to reduce the amount of a dataset that requires manual labeling. As subsets of the dataset are labeled, this label data is used to train a model which can then identify additional objects in the dataset without manual intervention. The process may continue iteratively until the model converges. This enables a dataset to be labeled without requiring each item in the dataset to be individually and manually labeled by human labelers.Type: GrantFiled: March 29, 2019Date of Patent: June 29, 2021Assignee: Amazon Technologies, Inc.Inventors: Fedor Zhdanov, Siddharth Joshi, Sankalp Srivastava, Rahul Sharma, Pietro Perona, Sindhu Chejerla
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Patent number: 10574257Abstract: An apparatus may include a delta sigma modulator. A first portion of the delta sigma modulator may form a digital predictor while a second portion of the delta sigma modulator may form an analog approximator. An output of the analog approximator may be coupled with a quantizer. The digital predictor, the analog approximator, and the quantizer may form a digitizing loop configured to convert an analog input into a digital output. The digital predictor may be configured to generate, based on a polarity of one or more digital outputs from the quantizer, a digital prediction of an expected amplitude of the analog input. The quantizer may be configured to respond to the digital prediction by adjusting a dynamic range of the digitizing loop including by changing a quantization step size used by the quantizer to quantize the analog input. Related methods are also provided.Type: GrantFiled: February 8, 2019Date of Patent: February 25, 2020Assignee: The Regents of the University of CaliforniaInventors: Chul Kim, Siddharth Joshi, Gert Cauwenberghs
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Publication number: 20190253069Abstract: An apparatus may include a delta sigma modulator. A first portion of the delta sigma modulator may form a digital predictor while a second portion of the delta sigma modulator may form an analog approximator. An output of the analog approximator may be coupled with a quantizer. The digital predictor, the analog approximator, and the quantizer may form a digitizing loop configured to convert an analog input into a digital output. The digital predictor may be configured to generate, based on a polarity of one or more digital outputs from the quantizer, a digital prediction of an expected amplitude of the analog input. The quantizer may be configured to respond to the digital prediction by adjusting a dynamic range of the digitizing loop including by changing a quantization step size used by the quantizer to quantize the analog input. Related methods are also provided.Type: ApplicationFiled: February 8, 2019Publication date: August 15, 2019Inventors: Chul Kim, Siddharth Joshi, Gert Cauwenberghs
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Patent number: 9929535Abstract: An emitting device is intended for delivering photons with a chosen wavelength. This emitting device includes an InP substrate with a directly modulated laser arranged for generating photons modulated by a non-return-to-zero modulation to produce data to be transmitted, a passive ring resonator monolithically integrated with the directly modulated laser and having a resonance amongst several ones that is used for filtering a zero level induced by the data modulation, and a tuning means arranged along the directly modulated laser and/or around the ring resonator to tune the photon wavelength and/or the ring resonator resonance used for filtering.Type: GrantFiled: April 15, 2015Date of Patent: March 27, 2018Assignee: Alcatel LucentInventors: Nicolas Chimot, Francois Lelarge, Siddharth Joshi
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Patent number: 9876518Abstract: Systems, methods, and articles of manufacture, including computer program products, are provided for capacitive passive mixer baseband receivers with broadband harmonic rejection. In some embodiments, an apparatus is provided. The apparatus includes a receiver configured to receive an input signal and generate, based on the input signal, an in-phase portion and a quadrature phase portion. The apparatus further includes a harmonic rejection mixer comprising a plurality of capacitors, the plurality of capacitors encoded with a plurality of capacitance values, the harmonic rejection mixer configured to reduce harmonics in the input signal based on applying a quantity of the plurality of capacitance values to the input signal. The apparatus further includes a plurality of switches configured to activate the plurality of capacitors, the quantity of the plurality of predetermined capacitance values applied to the input signal based on a quantity of the plurality of capacitors that are active.Type: GrantFiled: September 22, 2016Date of Patent: January 23, 2018Assignee: The Regents of the University of CaliforniaInventors: Chul Kim, Chris Michael Thomas, Gert Cauwenberghs, Lawrence E. Larson, Siddharth Joshi, Sohmyung Ha
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Publication number: 20170141805Abstract: Systems, methods, and articles of manufacture, including computer program products, are provided for capacitive passive mixer baseband receivers with broadband harmonic rejection. In some embodiments, an apparatus is provided. The apparatus includes a receiver configured to receive an input signal and generate, based on the input signal, an in-phase portion and a quadrature phase portion. The apparatus further includes a harmonic rejection mixer comprising a plurality of capacitors, the plurality of capacitors encoded with a plurality of capacitance values, the harmonic rejection mixer configured to reduce harmonics in the input signal based on applying a quantity of the plurality of capacitance values to the input signal. The apparatus further includes a plurality of switches configured to activate the plurality of capacitors, the quantity of the plurality of predetermined capacitance values applied to the input signal based on a quantity of the plurality of capacitors that are active.Type: ApplicationFiled: September 22, 2016Publication date: May 18, 2017Inventors: Chul Kim, Chris Michael Thomas, Gert Cauwenberghs, Lawrence E. Larson, Siddharth Joshi, Sohmyung Ha
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Publication number: 20170040773Abstract: An emitting device (1) is intended for delivering photons with a chosen wavelength. This emitting device (1) comprises an InP substrate (2) with a directly modulated laser (3) arranged for generating photons modulated by a non-return-to-zero modulation to produce data to be transmitted, a passive ring resonator (4) monolithically integrated with the directly modulated laser (3) and having a resonance amongst several ones that is used for filtering a zero level induced by the data modulation, and a tuning means (5) arranged along the directly modulated laser (3) and/or around the ring resonator (4) to tune the photon wavelength and/or the ring resonator resonance used for filtering.Type: ApplicationFiled: April 15, 2015Publication date: February 9, 2017Inventors: Nicolas CHIMOT, Francois LEARGE, Siddharth JOSHI
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Publication number: 20110098593Abstract: An assembly and system for collection and assessment of physiological data is provided. The assembly includes a physiological data acquisition module that may be used in combination with a head harness for the collection, recordation, storage and transmission of quality physiological data. The assembly integrates easy to use, self-applied electrodes in a user-friendly system resulting in less data artifacts than commonly seen in conventional methods and techniques for collecting physiological data. The assembly and system captures high-quality physiological data for display, storage, processing and analysis.Type: ApplicationFiled: October 27, 2010Publication date: April 28, 2011Inventors: Philip Low, Yu M. Chi, Siddharth Joshi, Christopher Uebelher, Yvon A. Dubois, Kevin Liu
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Patent number: 7788579Abstract: A method and apparatus for automated document layout creation is disclosed. In one embodiment, the method comprises receiving a first layout of document image objects and creating a second layout of document image objects subject to placement constraints corresponding to placement of document image objects, at least one of the placement constraints being based on object content in one or more of the document image objects.Type: GrantFiled: March 6, 2006Date of Patent: August 31, 2010Assignee: Ricoh Co., Ltd.Inventors: Kathrin Berkner, Siddharth Joshi, Edward L. Schwartz, Andrea Mariotti
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Patent number: 7761789Abstract: A method, apparatus and article of manufacture for creating visualizations of documents are described. In one embodiment, the method comprises receiving audible, visual, and audiovisual document elements, computing time attributes associated with the audible, visual, and audiovisual document elements based on display and application constraints, computing information content attributes associated with the audible, visual, and audiovisual document elements based on display and application constraints, selecting a set of one or more of the audible, visual and audiovisual document elements for inclusion into a multimedia representation based on the time and information content attributes, and composing the multimedia representation using the set of one or more of the audible, visual and audiovisual document elements.Type: GrantFiled: January 13, 2006Date of Patent: July 20, 2010Assignee: Ricoh Company, Ltd.Inventors: Berna Erol, Kathrin Berkner, Siddharth Joshi, Edward L. Schwartz
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Publication number: 20070208996Abstract: A method and apparatus for automated document layout creation is disclosed. In one embodiment, the method comprises receiving a first layout of document image objects and creating a second layout of document image objects subject to placement constraints corresponding to placement of document image objects, at least one of the placement constraints being based on object content in one or more of the document image objects.Type: ApplicationFiled: March 6, 2006Publication date: September 6, 2007Inventors: Kathrin Berkner, Siddharth Joshi, Edward Schwartz, Andrea Mariotti
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Publication number: 20070168852Abstract: A method, apparatus and article of manufacture for creating visualizations of documents are described. In one embodiment, the method comprises receiving audible, visual, and audiovisual document elements, computing time attributes associated with the audible, visual, and audiovisual document elements based on display and application constraints, computing information content attributes associated with the audible, visual, and audiovisual document elements based on display and application constraints, selecting a set of one or more of the audible, visual and audiovisual document elements for inclusion into a multimedia representation based on the time and information content attributes, and composing the multimedia representation using the set of one or more of the audible, visual and audiovisual document elements.Type: ApplicationFiled: January 13, 2006Publication date: July 19, 2007Inventors: Berna Erol, Kathrin Berkner, Siddharth Joshi, Edward Schwartz