Patents by Inventor Samuel Wang

Samuel Wang 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: 20240361182
    Abstract: An apparatus for detecting optical signals includes a photodetector. The photodetector is reverse-biased by a first voltage and a second voltage is added to the first voltage to provide an offset equal to the second voltage for the photodetector. A first circuit is coupled to the first circuit to provide the second voltage for the photodetector and a second circuit is coupled to the first circuit to provide the first voltage to the photodetector to reverse-bias the photodetector. The second circuit provides an output voltage proportional to a current of the photodetector at an output of the second circuit.
    Type: Application
    Filed: April 25, 2023
    Publication date: October 31, 2024
    Inventors: Junjie LU, Jing GUO, Leon Samuel WANG, Xiaofeng LIN, Xicheng Jiang
  • Publication number: 20240361180
    Abstract: An apparatus includes a first circuit that has a photodetector. The photodetector is reverse-biased by a reverse-bias voltage. A common mode voltage is added to the reverse-bias voltage to provide an offset to the photodetector voltage. A second circuit is coupled to the first circuit to provide the common mode voltage for the first circuit. A third circuit is coupled to the second circuit that includes a first voltage source and a second voltage source having opposite voltages equal to half of the reverse-bias voltage. Each one of the first voltage source and the second voltage source are coupled between separate input and output nodes of input and output ports of the third circuit. The first voltage source and the second voltage source provide the reverse-bias voltage to the first circuit to reverse-bias the photodetector. The third circuit provides a photodetector current at an output of the third circuit.
    Type: Application
    Filed: April 25, 2023
    Publication date: October 31, 2024
    Inventors: Junjie LU, Jing GUO, Leon Samuel WANG, Xiaofeng LIN, Xicheng JIANG
  • Patent number: 12123774
    Abstract: An apparatus for detecting optical signals includes a photodetector. The photodetector is reverse-biased by a first voltage and a second voltage is added to the first voltage to provide an offset equal to the second voltage for the photodetector. A first circuit is coupled to the first circuit to provide the second voltage for the photodetector and a second circuit is coupled to the first circuit to provide the first voltage to the photodetector to reverse-bias the photodetector. The second circuit provides an output voltage proportional to a current of the photodetector at an output of the second circuit.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: October 22, 2024
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Junjie Lu, Jing Guo, Leon Samuel Wang, Xiaofeng Lin, Xicheng Jiang
  • Publication number: 20240333139
    Abstract: An apparatus includes a circuitry to perform a first startup stage and to vary, during a second startup stage subsequent to the first startup stage, a duty cycle of a pulse controlling one or more switches of the circuitry.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 3, 2024
    Inventors: Shengyuan LI, Leon Samuel WANG, I-Ning KU, Xicheng JIANG
  • Publication number: 20240283353
    Abstract: An apparatus of the subject technology includes a circuit consisting of an inductor and a switch to allow a current to flow through the inductor and charge a capacitor of the circuit. A first circuit is coupled to the circuit and is used to simulate an event. A second circuit sets a threshold for triggering the event, while partially compensating a propagation delay.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 22, 2024
    Inventors: Shengyuan LI, Leon Samuel WANG, Xicheng JIANG
  • Patent number: 11612744
    Abstract: A head cap with channel identification includes a head cap, channel identification module, a controlling module, and electrical stimulation modules. The head cap includes the channels therein, and the head cap includes brain regions corresponding to the brain areas of the human being. The electrical stimulation modules disposed in the channels, and the channel identification modules disposed around the peripheral of the channels. The controlling module is electrically coupled to the channel identification modules. When the electrical stimulation modules disposed in some of the channels, the channel identification modules around the peripheral of the channels and the electrical stimulation module are constituted a circuit conduction status or a short circuit status, then the channel identification module transmits a signal to the controlling module to determine the desired sites of the electrical stimulation module where is corresponding to one of the brain areas of the human being according to the signal.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: March 28, 2023
    Assignees: TAIPEI MEDICAL UNIVERSITY, NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Shih-Ching Chen, Chih-Wei Peng, Che-Wei Lin, Jia-Jin Chen, Chun-Wei Wu, Samuel Wang, Chun-Ie Wu, Nguyen Van Truong
  • Publication number: 20210213285
    Abstract: A head cap with channel identification includes a head cap, channel identification module, a controlling module, and electrical stimulation modules. The head cap includes the channels therein, and the head cap includes brain regions corresponding to the brain areas of the human being. The electrical stimulation modules disposed in the channels, and the channel identification modules disposed around the peripheral of the channels. The controlling module is electrically coupled to the channel identification modules. When the electrical stimulation modules disposed in some of the channels, the channel identification modules around the peripheral of the channels and the electrical stimulation module are constituted a circuit conduction status or a short circuit status, then the channel identification module transmits a signal to the controlling module to determine the desired sites of the electrical stimulation module where is corresponding to one of the brain areas of the human being according to the signal.
    Type: Application
    Filed: December 18, 2020
    Publication date: July 15, 2021
    Inventors: Shih-Ching CHEN, Chih-Wei PENG, Che-Wei LIN, Jia-Jin CHEN, Chun-Wei WU, Samuel WANG, Chun-Ie WU, Nguyen Van TRUONG
  • Publication number: 20200301987
    Abstract: In non-limiting examples of the present disclosure, taste data is generated and usable within one or more applications. A taste is one or more elements that describe an entity. Information of an application may be processed to extract entity data that corresponds to a plurality of candidates to be designated as tastes (taste data). The candidates for the tastes are curated. In examples, the curating comprises filtering the candidates for tastes to remove extracted candidates. Extraction rules for managing structured taste data may be applied in the filtering. A status of a remaining candidate may be determined as approved or rejected based on processing of received user feedback. Taste data may be generated for an approved candidate. The generating of the taste data may comprise assigning parameters that include a descriptor type and a recommendation type. Taste data may be used within an application.
    Type: Application
    Filed: April 6, 2020
    Publication date: September 24, 2020
    Applicant: Foursquare Labs, Inc.
    Inventors: Matthew J. Kamen, Denis Sosnovtsev, Samuel Wang
  • Patent number: 10614138
    Abstract: In non-limiting examples of the present disclosure, taste data is generated and usable within one or more applications. A taste is one or more elements that describe an entity. Information of an application may be processed to extract entity data that corresponds to a plurality of candidates to be designated as tastes (taste data). The candidates for the tastes are curated. In examples, the curating comprises filtering the candidates for tastes to remove extracted candidates. Extraction rules for managing structured taste data may be applied in the filtering. A status of a remaining candidate may be determined as approved or rejected based on processing of received user feedback. Taste data may be generated for an approved candidate. The generating of the taste data may comprise assigning parameters that include a descriptor type and a recommendation type. Taste data may be used within an application.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 7, 2020
    Assignee: Foursquare Labs, Inc.
    Inventors: Matthew J. Kamen, Denis Sosnovtsev, Samuel Wang
  • Patent number: 10418946
    Abstract: An envelope tracking device includes circuitry that senses a current of an input state of the envelope tracking device. The circuitry also senses an output voltage of the envelope tracking device, and turns on at least one of a first and a second output switches to generate an output current based on at least one of the sensed current and the sensed voltage.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 17, 2019
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Xiaofeng Lin, Leon Samuel Wang, Shengyuan Li, Junjie Lu, Xicheng Jiang
  • Patent number: 10326363
    Abstract: A device, a circuit, and a method for current bypass are provided. The device includes circuitry detects an overload condition at a switching regulator output, enables a current bypass path including a linear current source in response to detecting the overload condition, and digitizes a difference between a load current and a switching regulator output current. The linear current source generates an active current assist signal based on the digitized difference between the load current and the switching regulator output current.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 18, 2019
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Shengyuan Li, Junjie Lu, Cheng Huang, Xiaofeng Lin, Leon Samuel Wang, Xicheng Jiang
  • Publication number: 20180198415
    Abstract: An envelope tracking device includes circuitry that senses a current of an input state of the envelope tracking device. The circuitry also senses an output voltage of the envelope tracking device, and turns on at least one of a first and a second output switches to generate an output current based on at least one of the sensed current and the sensed voltage.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Xiaofeng LIN, Leon Samuel WANG, Shengyuan LI, Junjie LU, Xicheng JIANG
  • Publication number: 20180198274
    Abstract: A device, a circuit, and a method for current bypass are provided. The device includes circuitry detects an overload condition at a switching regulator output, enables a current bypass path including a linear current source in response to detecting the overload condition, and digitizes a difference between a load current and a switching regulator output current. The linear current source generates an active current assist signal based on the digitized difference between the load current and the switching regulator output current.
    Type: Application
    Filed: November 16, 2017
    Publication date: July 12, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Shengyuan LI, Junjie LU, Cheng HUANG, Xiaofeng LIN, Leon Samuel WANG, Xicheng JIANG
  • Patent number: 9625448
    Abstract: Double caged GABA compounds and compositions including the same are described. Methods of synthesizing and using double caged GABA compounds are provided.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 18, 2017
    Assignee: The Trustees of Princeton University
    Inventors: Diana Shi, Samuel Wang, Martin Semmelhack
  • Publication number: 20170032477
    Abstract: In non-limiting examples of the present disclosure, taste data is generated and usable within one or more applications. A taste is one or more elements that describe an entity. Information of an application may be processed to extract entity data that corresponds to a plurality of candidates to be designated as tastes (taste data). The candidates for the tastes are curated. In examples, the curating comprises filtering the candidates for tastes to remove extracted candidates. Extraction rules for managing structured taste data may be applied in the filtering. A status of a remaining candidate may be determined as approved or rejected based on processing of received user feedback. Taste data may be generated for an approved candidate. The generating of the taste data may comprise assigning parameters that include a descriptor type and a recommendation type. Taste data may be used within an application.
    Type: Application
    Filed: July 29, 2015
    Publication date: February 2, 2017
    Applicant: FOURSQUARE LABS, INC.
    Inventors: Matthew J. Kamen, Denis Sosnovtsev, Samuel Wang
  • Publication number: 20150266809
    Abstract: Double caged GABA compounds and compositions including the same are described. Methods of synthesizing and using double caged GABA compounds are provided.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Diana Shi, Samuel Wang, Martin Semmelhack
  • Publication number: 20070153004
    Abstract: An animation file player can display animation files with an embedded system graphics application programming interface (graphics API). In an example implementation, an animation file comprises a Flash® animation file such as, a Shockwave Flash® animation file, and the embedded system graphics API comprises an OpenGL®|ES graphics API. The present invention is not intended to be so limited, and other types of animation files and embedded system graphics APIs can be used.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 5, 2007
    Applicant: Hooked Wireless, Inc.
    Inventors: John Airey, Michael Bruno, Johannes Govaars, Samuel Wang
  • Publication number: 20070043610
    Abstract: An algorithm for analyzing presidential preference opinion polls to arrive at a statistical snapshot of a multistate electoral-vote-allocation political race such as the US presidential race. Multiple opinion polls are used to estimate the outcome probability in individual state races. Polls are used to calculate a probability distribution of all possible electoral vote outcomes. The algorithm includes a method for calculating a median electoral vote estimator at any moment during a campaign. The electoral vote estimator can be tracked over time. The estimation of single-state probability is done using a Bayesian method to correct for sampling biases and systematic errors in polls, thereby allowing correction of the overall estimate. The algorithm calculates the relative value of an individual vote, the jerseyvote, in different states. The jerseyvote valuation aids resource allocation by a political campaign or party, an advocacy organization, or an individual activist.
    Type: Application
    Filed: July 19, 2006
    Publication date: February 22, 2007
    Inventor: Samuel Wang
  • Publication number: 20060008250
    Abstract: A number of different subroutines or algorithms are provided for locating lost video data, reconstructing navigation data, and creating new navigation files or the like so that the DVD may be made readable by an ordinary DVD player. The present invention provides algorithms to recover video data for each of a number of different DVD formats, so that video data may be recovered regardless of which format DVD was being used at the time (e.g., DVD+RW, DVD+R, DVD?RW, DVD?R, or the like). In addition, the present invention provides a number of other algorithms that be used by one or more of the different recovery algorithms, to recover various aspects of data from a disc. The combination of these algorithms provides a complete package of data recovery techniques that allows for video data to be recovered in the event of a power loss or other interruption, and in most instances, creates recordable DVD which may be subsequently read by other DVD players and the like.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 12, 2006
    Inventor: Samuel Wang