Patents by Inventor Siew Hoon

Siew Hoon 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).

  • Patent number: 11985254
    Abstract: Methods and systems are presented for providing a secured framework for facilitating electronic transactions using a multi-party computation approach. Under the multi-party computation approach, the task of authenticating a transaction conducted through a user account is distributed among multiple computer nodes. One or more secrets and shares of a secret are distributed among the multiple computer nodes. An authentication process is implemented such that at least a portion of the multiple computer nodes, including one or more required nodes, exceeding a predetermined number of nodes are needed to perform a set of computations using the corresponding secret(s) and/or shares of the secret in order to generate a digital signature for the user account. By verifying the digital signature using a public key of the user account, it can be determined that the participation requirement has been satisfied.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 14, 2024
    Assignee: PayPal, Inc.
    Inventors: Hubert Andre Le Van Gong, Khai Hanh Tang, Shanshan Hua, Siew Hoon Lim
  • Publication number: 20230066582
    Abstract: Methods and systems are presented for providing a secured framework for facilitating electronic transactions using a multi-party computation approach. Under the multi-party computation approach, the task of authenticating a transaction conducted through a user account is distributed among multiple computer nodes. One or more secrets and shares of a secret are distributed among the multiple computer nodes. An authentication process is implemented such that at least a portion of the multiple computer nodes, including one or more required nodes, exceeding a predetermined number of nodes are needed to perform a set of computations using the corresponding secret(s) and/or shares of the secret in order to generate a digital signature for the user account. By verifying the digital signature using a public key of the user account, it can be determined that the participation requirement has been satisfied.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Inventors: Hubert Andre Le Van Gong, Khai Hanh Tang, Shanshan Hua, Siew Hoon Lim
  • Publication number: 20220415050
    Abstract: A Media Analytics Co-optimizer (MAC) engine that utilizes available motion and scene information to increase the activation sparsity in artificial intelligence (AI) visual media applications. In an example, the MAC engine receives video frames and associated video characteristics determined by a video decoder and reformats the video frames by applying a threshold level of motion to the video frames and zeroing out areas that fall below the threshold level of motion. In some examples, the MAC engine further receives scene information from an optical flow engine or event processing engine and reformats further based thereon. The reformatted video frames are consumed by the first stage of AI inference.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Applicant: Intel Corporation
    Inventors: Palanivel Guruva reddiar, Siew Hoon Lim, Somnath Paul, Shabbir Abbasali Saifee
  • Patent number: 10778029
    Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: September 15, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Siew Hoon, Kevin Scoones, Jairo D. Olivares, Kai Zhu
  • Publication number: 20200059109
    Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Inventors: Siew Hoon, Kevin Scoones, Jairo D. Olivares, Kai Zhu
  • Patent number: 10491023
    Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: November 26, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Siew Hoon, Kevin Scoones, Jairo D. Olivares, Kai Zhu
  • Publication number: 20190207405
    Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
    Type: Application
    Filed: April 23, 2018
    Publication date: July 4, 2019
    Inventors: Siew Hoon, Kevin Scoones, Jairo D. Olivares, Kai Zhu
  • Patent number: 9828970
    Abstract: A wind turbine is provided. The wind turbine includes a plurality of control systems. The wind turbine further includes a reflective memory system. The plurality of control systems is coupled with the reflective memory system. Each of the plurality of control systems may include a respective memory of the reflective memory system. In response to data being written into one of the respective memories, the reflective memory system may automatically replicate the data to other respective memories.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: November 28, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Robert Bowyer, Siew Hoon Lim
  • Publication number: 20150167640
    Abstract: A wind turbine is provided. The wind turbine includes a plurality of control systems. The wind turbine further includes a reflective memory system. The plurality of control systems is coupled with the reflective memory system.
    Type: Application
    Filed: March 26, 2013
    Publication date: June 18, 2015
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventors: Robert Bowyer, Siew Hoon Lim
  • Patent number: 8240848
    Abstract: A contact lens with a central portion, an iris portion, and a peripheral portion disposed about the iris portion; wherein the iris portion contains an arcuate colored or tinted portion that provides a shadow effect; the peripheral portion can be colored white and can have a pattern that graduates to transparent towards the outer diameter of the lens.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: August 14, 2012
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Angie Bowers, Diana Zanini, Dawn D. Wright, Daniel Austin, Dafydd Geraint Davies, Marta Dobrowolski, Arti Krishna, Siew Hoon Loke, Alex Mackenzie, Andrew Milton, Julian Scarfe
  • Publication number: 20110187991
    Abstract: A contact lens with a central portion, an iris portion, and a peripheral portion disposed about the iris portion; wherein the iris portion contains an arcuate colored or tinted portion that provides a shadow effect; the peripheral portion can be colored white and can have a pattern that graduates to transparent towards the outer diameter of the lens.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 4, 2011
    Inventors: Angie L. Bowers, Diana Zanini, Dawn D. Wright, Daniel Austin, Dafydd Geraint Davies, Marta Dobrowolski, Arti Krishna, Siew Hoon Loke, Alex Mackenzie, Andrew Milton, Julian Scarfe
  • Publication number: 20080126147
    Abstract: Candidate services are identified using goal-service modeling or other techniques. A candidate service is tested using a business alignment test, a composability test, an externalized service description test, and a redundancy test. When all tests are successfully passed, the candidate service is exposed for use in a client solution, such as implementation as a service-oriented architecture.
    Type: Application
    Filed: July 31, 2006
    Publication date: May 29, 2008
    Inventors: Jenny Siew Hoon Ang, Ali P. Arsanjani, Lyubov Cherbakov, George M. Galambos, Kerrie Lamont Holley, David Hugh Janson
  • Publication number: 20080027784
    Abstract: Software services for a business are identified. The goals for the business to meet its objectives are identified. Sub-goals are then identified recursively until services can be identified for fulfilling each of the sub-goals. Performance indicators are identified for each of the sub-goals. Each indicator has a metric identifying the type of measurements that need to be collected to assess the state of the corresponding indicator. Services and indicators are entered in a services portfolio database. A services solution for the business is then implemented using a services oriented architecture using the services in the portfolio.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 31, 2008
    Inventors: Jenny Siew Hoon Ang, Ali P. Arsanjani, Lyubov Cherbakov, George M. Galambos, Kerrie Lamont Holley, David Hugh Janson
  • Publication number: 20080001585
    Abstract: Low noise, low dropout regulators are described. An example low noise, low dropout regulator includes a chopping error amplifier to receive an input signal and a feedback signal and to output a modified signal having an undesired portion of the input signal shifted to a higher frequency and a regulator to receive the modified signal and to generate an output signal by filtering the undesired portion of the input signal from the modified signal.
    Type: Application
    Filed: May 25, 2007
    Publication date: January 3, 2008
    Inventors: Bertan Bakkaloglu, Bhaskar Aravind, Siew Hoon
  • Patent number: 7292875
    Abstract: An electronic device having a first piece, a second piece moveable between an open position and a closed position with respect to the first piece, and an ambient light sensor operable to detect ambient light when the second piece is not closed. The electronic device is operated in a first mode when the second piece is in an open position and in a second mode when the second piece is in the closed position.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: November 6, 2007
    Assignee: Avago Technologies ECBU IP (Singapore) Pte Ltd
    Inventors: Serene Seok Peng Chan, Chee Kien Lim, Tammy Siew Hoon Ho, Wee Sin Tan
  • Patent number: 7196316
    Abstract: An electronic device having a first piece, a second piece moveable with respect to the first piece, and a position sensor operable to sense the position of the second piece relative to the first piece. The electronic device is operated in a first mode or a second mode dependent upon the position of the second piece relative to the first piece. Optionally, a proximity sensor is provided to detect the presence of a body in close proximity to the device when the second piece is in an open position relative to the first piece.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: March 27, 2007
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Serene Seok Peng Chan, Chee Kien Lim, Tammy Siew Hoon Ho, Wee Sin Tan, Freddy Ka Hui Ho, Peng Yam Ng, Josephine Pei Chen Quek, Chi-Boon Ong, Sin Heng Lim, Kuldeep Kumar Saxena
  • Publication number: 20060261840
    Abstract: A system and method are provided for determining channel mobility. The system includes a threshold voltage (VT) extractor that extracts the VT associated with a metal oxide semiconductor (MOS) transistor and provides an output signal functionally related to the extracted VT. An oscillator generates an oscillating waveform according to the output signal and a calculator computes an estimate of a channel mobility parameter based on the oscillating waveform. A plurality of the VT extractor and oscillators can be distributed across the wafer to provide an indication of channel mobility for different regions of the wafer.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 23, 2006
    Inventors: Siew Hoon, Jun Chen
  • Publication number: 20060238029
    Abstract: A switching regulation system and control scheme efficiently enables driving multiple loads from a common energy storage element, such as an inductor. The control scheme operates to store energy in the energy storage element over a first portion of a cycle, such as by ramping up current through an inductor, according to energy requirements of the multiple loads. After storing the energy in the storage element during the first portion of the cycle, the stored energy is delivered consecutively to each of the multiple loads over a subsequent portion of the cycle.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 26, 2006
    Inventors: Siew Hoon, Norman Culp, Jun Chen, Franco Maloberti
  • Publication number: 20060239082
    Abstract: A driver circuit includes a first transistor coupled between an input supply node and an output node. The first transistor operates in one of a conductive state to couple the output node with the input supply node and non-conductive state according to cooperative operation of a second transistor and a third transistor. The second transistor is coupled to provide a control input to drive the first transistor to the conductive state thereof in response a first input signal provided at a control input of the second transistor. The third transistor is coupled to provide an output at the output node in response to a second input signal provided at a control input of the third transistor, the first and second input signals being out of phase with each other. Circuitry is coupled between the input supply node and the control input of the first transistor to provide reduced impedance at the control input of the first transistor according to operation of the second transistor.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 26, 2006
    Inventors: Siew Hoon, Franco Maloberti, Jun Chen
  • Publication number: 20050104574
    Abstract: System for a current source with enhanced output impedance. A preferred embodiment comprises a cascode current source arranged in a current mirror configuration (such as current source 600) with a pair of level shifters arranged in a source-follower configuration (such as level shifters 505 and 510). The level shifters reduce the compliance voltage of the current source, permitting use in low voltage applications.
    Type: Application
    Filed: November 19, 2003
    Publication date: May 19, 2005
    Inventors: Siew Hoon, Jun Chen