Patents by Inventor Wai Hung To

Wai Hung To 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: 11596895
    Abstract: A radial adsorber can be configured to facilitate utilization of different layers of material. The radial adsorber, system using at least one radial adsorber, and methods of utilizing embodiments of the radial adsorber can help permit improved efficient operation of fluid purification processing while also being configured to minimize, if not fully avoid, being susceptible to the effect of fluidization.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: March 7, 2023
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gowri Krishnamurthy, Nasim Ul Hassan Malik, Edward Landis Weist, Jr., King Wai Hung
  • Publication number: 20230067853
    Abstract: Aspects include modeling data cache utilization for each loop in a loop nest; estimating total data cache lines fetched in one iteration of the loop; and determining the possibility of data cache reuse across loop iterations using data cache lines fetched and associativity constraints. Aspects also include estimating, for memory reference pairs, reuse by one reference of data cache line fetched by another; estimating total number of cache misses for all iterations of the loop; and estimating total number of cache misses of a reference for iterations of a next outer loop as equal to total cache misses for an entire inner loop. Aspects further include estimating memory cost of a loop unroll and jam transformation, without performing the transformation; and extending a data cache model to estimate best unroll-and-jam factors for the loop nest, capable of minimizing total cache misses incurred by the memory references in the loop body.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 2, 2023
    Inventors: Wai Hung Tsang, Prithayan Barua, Ettore Tiotto, Bardia Mahjour, Jun Shirako
  • Publication number: 20230052331
    Abstract: An expandable plant caddy assembly is provided with a frame with a plurality of legs. A plurality of plates is each mounted for translation to one of the plurality of legs, to collectively support a planter, and to allow expansion to accommodate planters of varying sizes. A plurality of guides is each mounted to one of the plurality of plates to connect each plate for translation along the corresponding leg of the plurality of legs. A plurality of casters is each mounted to one of the plurality of guides with the corresponding leg therebetween to apply compression upon the corresponding leg between the caster and the guide to resist inadvertent adjustment of each of the plurality of plates, and to permit travel of the expandable plant caddy.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Chun Wai HUNG, Amy BRINCKERHOFF, John JOYCE, Ryan Barclay BISHOP
  • Patent number: 11561778
    Abstract: Aspects include executing a first phase that includes injecting instrumentation into program code in response to identifying an inner conditional check in the program code and running the instrumented program with a representative workload. The injecting includes duplicating the inner conditional check and placing a duplicate of the inner conditional check before a respective original nested conditional check in the program code to create an instrumented program. The instrumented program includes a plurality of basic blocks including original basic blocks and a newly added basic block that includes the duplicate of the inner conditional check. The method also includes executing a second phase that includes collecting execution frequency values from counters associated with the basic blocks to form metadata used to make optimization decisions for the program code.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: January 24, 2023
    Assignee: International Business Machines Corporation
    Inventors: Wai Hung Tsang, Ettore Tiotto, Shimin Cui
  • Patent number: 11439946
    Abstract: An adsorbent vessel for removing contaminants from a feed gas upstream from a cryogenic distillation process using pressure swing adsorption, temperature swing adsorption, or thermal-pressure swing adsorption. The adsorbent vessel having an adsorbent bed comprised of multiple layers of adsorbent material, including two layers of adsorbent material that selective adsorbs carbon dioxide. Each of the two layers is formed from an adsorbent material having a different capacity for adsorbing carbon dioxide.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 13, 2022
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Nasim Ul Hassan Malik, King Wai Hung, Gowri Krishnamurthy, William T. Kleinberg, Garrett C. Lau, Edward Landis Weist, Jr.
  • Patent number: 11353667
    Abstract: A transmitter optical sub-assembly (TOSA) structure having an independent upward heat dissipation path for dissipating heat in an upward direction including an independent signal source, an LDU assembly including a laser diode emitting a plurality of optical signals, a cascade LDU holding the laser diode, a lens positioned in front of the laser diode on the cascade LDU and an optical bench assembly including an optical bench assembled on a photonic integrated circuit having a plurality of passive optical components assembled on the optical bench. In particular, the independent signal source, the laser diode and the cascade LDU, are independent from the plurality of passive optical components on the photonic integrated circuit.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: June 7, 2022
    Assignee: Cloud Light Technology Limited
    Inventors: Vincent Wai Hung, Wing Keung Mark Mak, Vivian Wei Ma
  • Publication number: 20220096993
    Abstract: An adsorbent vessel for removing contaminants from a feed gas upstream from a cryogenic distillation process using pressure swing adsorption, temperature swing adsorption, or thermal-pressure swing adsorption. The adsorbent vessel having an adsorbent bed comprised of multiple layers of adsorbent material, including two layers of adsorbent material that selective adsorbs carbon dioxide. Each of the two layers is formed from an adsorbent material having a different capacity for adsorbing carbon dioxide.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Nasim Ul Hassan Malik, King Wai Hung, Gowri Krishnamurthy, William T. Kleinberg, Garrett C. Lau, Edward Landis Weist, JR.
  • Patent number: 11287577
    Abstract: An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: March 29, 2022
    Assignee: Cloud Light Technology Limited
    Inventors: Chi Yan Wong, Vivian Wei Ma, Yat Hin Chan, Yuk Nga Chen, Vincent Wai Hung
  • Patent number: 11267167
    Abstract: A molded pot is provided with imperfections manufactured by manufacturing mold tooling with imperfections by obtaining a handmade pot. The handmade pot is scanned to obtain geometric data. The geometric data is converted to mold tooling geometric data. Mold tooling is manufactured from the mold tooling geometric data. The handmade pot is obtained with imperfections. The handmade pot is scanned to obtain the geometric data of the handmade pot with the imperfections. The geometric data is converted to mold tooling geometric data with the imperfections. The mold tooling is manufactured with imperfections. A pot is molded with imperfections from the mold tooling.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 8, 2022
    Assignee: ATT Southern, Inc.
    Inventors: Chun Wai Hung, Brian Leahy
  • Publication number: 20220019027
    Abstract: An optical subassembly for non-reciprocal coupling of light from a planar optical waveguide output to an optical fiber includes a carrier configured to support the optical subassembly, an optical fiber fixed to the optical subassembly, a focusing optical system consisting two foci with one focus coincident with the input of optical fiber, an optical isolator to transmit light unidirectionally between two foci, an input boundary provided by the carrier to align the optical subassembly with the planar optical waveguide output. In particular, the optical subassembly is operably configured to provide a low transmission loss for light traveling from the planar optical waveguide output to the optical fiber.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 20, 2022
    Inventors: Wing Keung Mark Mak, Vincent Wai Hung
  • Publication number: 20220016565
    Abstract: A radial adsorber can be configured to facilitate utilization of different layers of material. The radial adsorber, system using at least one radial adsorber, and methods of utilizing embodiments of the radial adsorber can help permit improved efficient operation of fluid purification processing while also being configured to minimize, if not fully avoid, being susceptible to the effect of fluidization.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 20, 2022
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Gowri Krishnamurthy, Nasim Ul Hassan Malik, Edward Landis Weist, JR., King Wai Hung
  • Patent number: 11227820
    Abstract: This disclosure relates to a flank wettable semiconductor device, having: a lead frame including a plurality of leads with a lead end portion and a semiconductor die mounted on the lead frame. The lead end portion comprises a recess portion having a height that corresponds to a thickness of the lead end portion, and a plate member mounted on the leadframe at the lead end portion.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: January 18, 2022
    Assignee: Nexperia B.V.
    Inventors: Kan Wae Lam, Wai Hung William Hor, Sven Walczyk, Hans-Juergen Funke
  • Patent number: 11218664
    Abstract: A scalable dual mode monitoring system according to the present invention is configured to communicate using RF communication channels wherever possible for better range and less battery power consumption. When the system uses 2.4 GHz FHSS RF technology, the system coverage could reach a range of 250 meters line of sight; standby current goes down significantly as compared to that of solely using Wi-Fi communication channel; time to get video streaming is reduced when compared to systems that solely use Wi-Fi communication channel because RF communication channels allow for better and faster synchronization; system set-up via RF link is easy without pairing or any setup and requires simply plug and play when using RJ45 cable connecting to router from the hub.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: January 4, 2022
    Inventor: Wai Hung Lee
  • Publication number: 20210377296
    Abstract: A system and method for intelligently detecting a duplicate address attack is described. The system and method comprise transferring a first address conflict check message; receiving a first address conflict check response message; performing intelligent Duplicate Address Detection (DAD) to determine if the duplicate address attack is valid; and if the duplicate address attack is valid, then reporting the duplicate address attack to a monitoring server. An intelligent switch that detects the DAD attack blocks further address conflict check response messages from the attacker's MAC address.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Dusan Mudric, Martin Vuille, Wai-Hung Leung
  • Publication number: 20210364712
    Abstract: A transmitter optical sub-assembly (TOSA) structure having an independent upward heat dissipation path for dissipating heat in an upward direction including an independent signal source, an LDU assembly including a laser diode emitting a plurality of optical signals, a cascade LDU holding the laser diode, a lens positioned in front of the laser diode on the cascade LDU and an optical bench assembly including an optical bench assembled on a photonic integrated circuit having a plurality of passive optical components assembled on the optical bench. In particular, the independent signal source, the laser diode and the cascade LDU, are independent from the plurality of passive optical components on the photonic integrated circuit.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 25, 2021
    Inventors: Vincent Wai Hung, Wing Keung Mark Mak, Vivian Wei Ma
  • Patent number: 11147347
    Abstract: The present invention provides an essential oil-containing ring, comprising a ring body that is adjustable in size, a jewel provided on the ring body, a fixing member provided on the ring body and connected to one end of the jewel, a container component detachably provided at the other end of the jewel, and an essential oil contained in the container component to emit fragrance. The essential oil placed in a container in the ring can emit the fragrance through the joint gap. The ring of the present invention is provided with an opening at the ring body, so that the size of the ring can be adjusted according to different finger sizes as required.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: October 19, 2021
    Assignee: Gemtown (Shenzhen) Holding Company limited
    Inventor: Wai Hung Anthony Mong
  • Publication number: 20210297628
    Abstract: A scalable dual mode monitoring system according to the present invention is configured to communicate using RF communication channels wherever possible for better range and less battery power consumption. When the system uses 2.4 GHz FHSS RF technology, the system coverage could reach a range of 250 meters line of sight; standby current goes down significantly as compared to that of solely using Wi-Fi communication channel; time to get video streaming is reduced when compared to systems that solely use Wi-Fi communication channel because RF communication channels allow for better and faster synchronization; system set-up via RF link is easy without pairing or any setup and requires simply plug and play when using RJ45 cable connecting to router from the hub.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 23, 2021
    Inventor: Wai Hung LEE
  • Publication number: 20210290105
    Abstract: The multi-purpose video monitoring camera includes a microprocessor, a CMOS video camera, a thermographic video camera, a display unit and a mic array. The microprocessor includes a baby presence detection module, a warning module, a motion detection module, a breathing detection module, a hot air exhalation detection module, a chest movement detection module, a breathing sound detection module, a suffocation detection module, a temperature measurement module, a urination and defecation detection module, an air conditioning module and a baby growth rate module. By using inputs from both the CMOS video camera and the thermographic video camera, the accuracy of the baby presence detection module is improved.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 23, 2021
    Inventor: Wai Hung LEE
  • Patent number: 11106973
    Abstract: A bit-depth optimization engine reduces the hardware cost of a neural network. When training data is applied to a neural network during training routines, accuracy cost and hardware costs are generated. A hardware complexity cost generator generates costs for weights near bit-depth steps where the number of binary bits required to represent a weight decreases, such as from 2N to 2N?1, where one less binary bit is required. Gradients are generated from costs for each weight, and weights near bit-depth steps are easily selected since they have a large gradient, while weights far away from a bit-depth step have near-zero gradients. The selected weights are reduced during optimization. Over many cycles of optimization, a low-bit-depth neural network is generated that uses fewer binary bits per weight, resulting in lower hardware costs when the low-bit-depth neural network is manufactured on an Application-Specific Integrated Circuit (ASIC).
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 31, 2021
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Chao Shi, Luhong Liang, Kwok Wai Hung, King Hung Chiu
  • Patent number: D935078
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 2, 2021
    Assignee: Energizer Brands, LLC
    Inventors: Sin Kwan Chan, Wai Hung Liu, Michael Jerome, H. Y. Lam