Patents by Inventor David H. C. Chen

David H. C. Chen 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: 20240134608
    Abstract: Systems and methods are directed to accelerating operations associated with a microprocessor. Example embodiments improve the operations of the microprocessor by providing devices (e.g., integrated circuits, independent accelerators) configured to use reciprocal or reciprocal square root instructions. Such devices can be further configured to follow the reciprocal or reciprocal square root instructions with multiplication or other instructions to finish division, square root, or other complex operations.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventor: David H.C. Chen
  • Publication number: 20200121258
    Abstract: A wearable blood pressure monitoring device includes a housing with a processor and array of sensors is suitable to continuously wear on a subject without cuffing the subject during measurements. The sensors include an ECG sensor and a PPG sensor in contact with the external surface of the skin of the subject. The processor determines blood pressure from a determined PTT value resulting from a time difference between the measured ECG signal and the measured PPG signal resulting from the heartbeat.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 23, 2020
    Inventors: Li Zhu, David H.C. Chen
  • Patent number: 10424035
    Abstract: Individuals are remotely monitored over a data communication network to automatically detect and responds to anomalous conditions. A user account of a plurality of user accounts is configured for remote monitoring for emergency conditions of monitored individuals. A monitoring device can be wearable and in physical contact with a first individual. A notifying device can also be wearable for a second individual for notification of emergency conditions. An anomalous condition is detected. The monitoring device includes sensors that measure conditions within and around the first individual, and send readings to the anomalous condition server for analysis. An alert is sent responsive to the anomaly determination, from the network communication interface, to the notifying device, according to personalized settings of the second individual.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 24, 2019
    Inventors: Trungram Gyaltrul R. Sherpa, David H. C. Chen
  • Publication number: 20190269879
    Abstract: Computer implemented method and system for achieving a preferred state of mind of a user are disclosed. In a first aspect, the method comprises detecting a biological marker (biomarker) of a user utilizing one or more sensors; and inferring a state of mind of the user based upon data received from the one or more sensors that are provided to computational hardware. Finally, the method includes providing an antidote to the user if the inferred state of mind is different than the preferred state of mind utilizing an actuator. In a second aspect, the system comprises one or more sensors for detecting a biological marker (biomarker) of the user and computational hardware for inferring a state of mind of the user based upon data received from the one or more sensors. Finally, the system includes an actuator for providing an antidote to the user if the inferred state of mind is different than a preferred state of mind.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 5, 2019
    Inventors: Trungram Gyaltrul R. Sherpa, David H.C. Chen
  • Patent number: 10258760
    Abstract: Computer implemented method and system for achieving a preferred state of mind of a user are disclosed. In a first aspect, the method comprises detecting a biological marker (biomarker) of a user utilizing one or more sensors; and inferring a state of mind of the user based upon data received from the one or more sensors that are provided to computational hardware. Finally the method includes providing an antidote to the user if the inferred state of mind is different than the preferred state of mind utilizing an actuator. In a second aspect, the system comprises one or more sensors for detecting a biological marker (biomarker) of the user and computational hardware for inferring a state of mind of the user based upon data received from the one or more sensors. Finally the system includes an actuator for providing an antidote to the user if the inferred state of mind is different than a preferred state of mind.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: April 16, 2019
    Assignee: AlayaTec, Inc.
    Inventors: Trungram Gyaltrul R. Sherpa, David H. C. Chen
  • Patent number: 10088819
    Abstract: Systems and devices for and methods of energy management, property security and fire hazard prevention are provided. The systems, devices and methods are able to be centralized, computerized, and expandable. The devices and systems are capable of automatically reducing energy consumptions and minimizing losses of property caused by fire, theft, and vandalism using monitoring sensors (e.g., occupancy sensors) and computer software and equipments.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 2, 2018
    Inventor: David H. C. Chen
  • Patent number: 9566411
    Abstract: Computer implemented method and system for achieving a preferred state of mind of a user are disclosed. In a first aspect, the method comprises detecting a biological marker (biomarker) of a user utilizing one or more sensors; and inferring a state of mind of the user based upon data received from the one or more sensors that are provided to computational hardware. Finally the method includes providing an antidote to the user if the inferred state of mind is different than the preferred state of mind utilizing an actuator. In a second aspect, the system comprises one or more sensors for detecting a biological marker (biomarker) of the user and computational hardware for inferring a state of mind of the user based upon data received from the one or more sensors. Finally the system includes an actuator for providing an antidote to the user if the inferred state of mind is different than a preferred state of mind.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: February 14, 2017
    Inventors: Trungram Gyaltrul R. Sherpa, David H. C. Chen
  • Patent number: 9519458
    Abstract: A fused-multiply-add system is disclosed. The fused-multiply-add system includes a multiplier to multiply first and second operands and to provide at least one product. The fused-multiply-add system also includes an alignment shifter for aligning a third operand with the at least one product to provide an aligned third operand. The fused-multiply-add system also includes an adder and a subtractor coupled to the multiplier and the alignment shifter for performing two asymmetrical additions in parallel paths. The fused-multiply-add system also includes at least one leading zero counter for counting a number of leading zero bits provided by at least one of the adder and the subtractor to provide at least one normalization shift amount. Finally, the fused-multiply-add system includes a multiplexer coupled to the adder and the subtractor for providing an appropriate output based upon a sign bit.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: December 13, 2016
    Assignee: Cadence Design Systems, Inc.
    Inventors: David H. C. Chen, William A. Huffman
  • Patent number: 9335967
    Abstract: A method is provided to narrow down the exponent range throughout most part of the division and square root calculations, to make both software assistance and precision extension unnecessary. The method adjusts the exponent at the end of the calculation to reach IEEE-754 results.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: May 10, 2016
    Assignee: CADENCE DESIGN SYSTEMS, INC.
    Inventors: William A. Huffman, David H. C. Chen
  • Publication number: 20150205278
    Abstract: Systems and devices for and methods of energy management, property security and fire hazard prevention are provided. The systems, devices and methods are able to be centralized, computerized, and expandable. The devices and systems are capable of automatically reducing energy consumptions and minimizing losses of property caused by fire, theft, and vandalism using monitoring sensors (e.g., occupancy sensors) and computer software and equipments.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 23, 2015
    Inventor: David H.C. CHEN
  • Patent number: 9056212
    Abstract: Systems and devices for and methods of energy management, property security and fire hazard prevention are provided. The systems, devices and methods are able to be centralized, computerized, and expandable. The devices and systems are capable of automatically reducing energy consumptions and minimizing losses of property caused by fire, theft, and vandalism using monitoring sensors (e.g., occupancy sensors) and computer software and equipments.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 16, 2015
    Inventor: David H. C. Chen
  • Patent number: 9034114
    Abstract: A dishwasher includes a shiftable rack provided with a washing agent dispersal system including a housing into which washing fluid is delivered. When the rack is shifted to a retracted position within a tub of the dishwasher, a tube feed system is employed to selectively distribute washing fluid from a pump assembly to each of multiple spray arms, the housing of the washing agent dispersal system and an auxiliary spray unit carried by the upper rack.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 19, 2015
    Assignee: Whirlpool Corporation
    Inventors: Roger J. Bertsch, David H C Chen
  • Publication number: 20110238234
    Abstract: Systems and devices for and methods of energy management, property security and fire hazard prevention are provided. The systems, devices and methods are able to be centralized, computerized, and expandable. The devices and systems are capable of automatically reducing energy consumptions and minimizing losses of property caused by fire, theft, and vandalism using monitoring sensors (e.g., occupancy sensors) and computer software and equipments.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Inventor: David H. C. Chen
  • Patent number: 6314522
    Abstract: A computer module includes a central processing unit capable of operating at a first performance level and capable of operating at a second performance level in response to configuration signals, and a control logic coupled to the central processing unit for receiving configuration signals and for generating the performance configuration signals, the performance configuration signals comprising a bus clock, a speed multiplier, and an operating voltage, the control logic having a clocked control for receiving the performance configuration signals and in response specifying the speed multiplier, clock configuration signals, and voltage configuration signals, a clock driver coupled to the clocked control logic for receiving the clock configuration signals and in response for outputting the bus clock, and a voltage converter coupled to the clocked control logic for receiving the voltage configuration signals and in response outputting the operating voltage.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: November 6, 2001
    Assignee: Acqis Technology, Inc.
    Inventors: William W. Y. Chu, David H. C. Chen