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).

  • Publication number: 20240088623
    Abstract: 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: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Siddharth Joshi, Keith Lyon, Arnaud Laflaquière, Christophe Verove
  • Publication number: 20240079440
    Abstract: 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: Application
    Filed: September 6, 2022
    Publication date: March 7, 2024
    Inventors: 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
  • Publication number: 20240070366
    Abstract: 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: Application
    Filed: August 25, 2022
    Publication date: February 29, 2024
    Inventors: 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
  • Publication number: 20230085957
    Abstract: 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: Application
    Filed: July 18, 2022
    Publication date: March 23, 2023
    Inventors: Nicolas Hotellier, Arnaud Laflaquière, Christophe Verove, Fei Tan, Siddharth Joshi
  • Patent number: 11443232
    Abstract: 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: Grant
    Filed: March 29, 2019
    Date of Patent: September 13, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Zahid Rahman, Wei Xiao, Stefano Stefani, Rahul Sharma, Siddharth Joshi
  • Publication number: 20210212564
    Abstract: 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: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: Philip Low, Yu M. Chi, Siddharth Joshi, Christopher Uebelher, Yvon A. Dubois, Kevin Liu
  • Patent number: 11048979
    Abstract: 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: Grant
    Filed: March 29, 2019
    Date of Patent: June 29, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Fedor Zhdanov, Siddharth Joshi, Sankalp Srivastava, Rahul Sharma, Pietro Perona, Sindhu Chejerla
  • Patent number: 10574257
    Abstract: 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: Grant
    Filed: February 8, 2019
    Date of Patent: February 25, 2020
    Assignee: The Regents of the University of California
    Inventors: Chul Kim, Siddharth Joshi, Gert Cauwenberghs
  • Publication number: 20190253069
    Abstract: 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: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Inventors: Chul Kim, Siddharth Joshi, Gert Cauwenberghs
  • Patent number: 9929535
    Abstract: 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: Grant
    Filed: April 15, 2015
    Date of Patent: March 27, 2018
    Assignee: Alcatel Lucent
    Inventors: Nicolas Chimot, Francois Lelarge, Siddharth Joshi
  • Patent number: 9876518
    Abstract: 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: Grant
    Filed: September 22, 2016
    Date of Patent: January 23, 2018
    Assignee: The Regents of the University of California
    Inventors: Chul Kim, Chris Michael Thomas, Gert Cauwenberghs, Lawrence E. Larson, Siddharth Joshi, Sohmyung Ha
  • Publication number: 20170141805
    Abstract: 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: Application
    Filed: September 22, 2016
    Publication date: May 18, 2017
    Inventors: Chul Kim, Chris Michael Thomas, Gert Cauwenberghs, Lawrence E. Larson, Siddharth Joshi, Sohmyung Ha
  • Publication number: 20170040773
    Abstract: 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: Application
    Filed: April 15, 2015
    Publication date: February 9, 2017
    Inventors: Nicolas CHIMOT, Francois LEARGE, Siddharth JOSHI
  • Publication number: 20110098593
    Abstract: 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: Application
    Filed: October 27, 2010
    Publication date: April 28, 2011
    Inventors: Philip Low, Yu M. Chi, Siddharth Joshi, Christopher Uebelher, Yvon A. Dubois, Kevin Liu
  • Patent number: 7788579
    Abstract: 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: Grant
    Filed: March 6, 2006
    Date of Patent: August 31, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Kathrin Berkner, Siddharth Joshi, Edward L. Schwartz, Andrea Mariotti
  • Patent number: 7761789
    Abstract: 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: Grant
    Filed: January 13, 2006
    Date of Patent: July 20, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Berna Erol, Kathrin Berkner, Siddharth Joshi, Edward L. Schwartz
  • Publication number: 20070208996
    Abstract: 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: Application
    Filed: March 6, 2006
    Publication date: September 6, 2007
    Inventors: Kathrin Berkner, Siddharth Joshi, Edward Schwartz, Andrea Mariotti
  • Publication number: 20070168852
    Abstract: 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: Application
    Filed: January 13, 2006
    Publication date: July 19, 2007
    Inventors: Berna Erol, Kathrin Berkner, Siddharth Joshi, Edward Schwartz