Patents by Inventor Eric Cheng

Eric Cheng 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: 11227074
    Abstract: System and method for developing a treatment plan for achieving a treatment goal including creating a virtual model of a dental patient's dentition; transforming the virtual model of the dentition using virtual prosthodontics to facilitate achievement of the treatment goal; transforming the virtual model of the dentition using virtual orthodontics to facilitate achievement of the treatment goal; iterating on the transforming steps until substantially achieving the treatment goal; and generating an orthodontic treatment plan and a prosthodontic treatment plan based upon the substantially achieved treatment goal.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: January 18, 2022
    Assignee: Align Technology, Inc.
    Inventors: Eric Kuo, Jihua Cheng, Vadim Matov, Juan Carlos Alvarez, Ali Kakavand
  • Publication number: 20210407080
    Abstract: Cell identification and classification is a well-known problem in the pathology domain that help identify microenvironments. In addition to the characteristic of each cell, its interactions with the neighboring regions or other cells is also important. This involves correct identification of neighboring elements and analytically representing the interactions between them. This disclosure presents a system that combines many such features, some hand engineered and some machine derived through training of Deep Learning algorithms that can be used to study the microenvironments.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 30, 2021
    Inventors: Evan Szu, Nishant Borude, Nivedita Suresh, Michael H. Chu, David G. Zapol, Vinona Bhatia, Darick M. Tong, Noriko Y. Tong, John Cheng, Clifford Szu, Eric J. Suba
  • Publication number: 20210409022
    Abstract: Methods and apparatus for detecting possible living body contact at an electrical contact surface is disclosed, comprising sending a non-hazardous probing signal to the contact surface, detecting an electrical response from the contact surface in response to the electrical probing signal, and determining whether a captured responsive signal has characteristics of an expected responsive pulse, and to output a positive output signal indicative of possible living body to mitigate risks of electrical shock.
    Type: Application
    Filed: November 5, 2018
    Publication date: December 30, 2021
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng, Kwok Shing Wong
  • Patent number: 11211795
    Abstract: An apparatus for monitoring an electrical apparatus, the load monitoring apparatus comprising a controller which is configured to capture and process voltage and current data of an electrical apparatus, which is electrically connected with a power supply, to obtain electrical parameters of the electrical apparatus, to store the electrical parameters as measured electrical parameters, to compare the measured electrical parameters with a set of pre-stored electrical parameters, to determine whether the measured electrical parameters match with the stored electrical parameters, and to operate a power switch to turn off power supply to the electrical parameters if the measured electrical parameters do not match with the stored electrical parameters.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: December 28, 2021
    Assignee: Vicwood Prosperity Technology Limited
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng, Kwok Shing Wong
  • Patent number: 11001087
    Abstract: A method of depositing single particles onto a target includes loading a particle suspension to a droplet dispenser having a suspension reservoir and a nozzle section, detecting particles in the nozzle section, testing a single particle condition of the droplet dispenser, and determining whether an ejection region of the nozzle section includes one single particle. The method further includes operating the droplet dispenser for dispensing a droplet such that the droplet is dispensed onto the target if the single particle condition is fulfilled, or the droplet is dispensed into a collection reservoir if the single particle condition is not fulfilled. The step of testing the single particle condition further includes determining whether a sedimentation region adjacent to the ejection region is free of particles. A dispenser for performing the method is also provided.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 11, 2021
    Assignee: SCIENION AG
    Inventors: Miguel Rodriguez, Eric Cheng
  • Patent number: 10939930
    Abstract: An embodiment of a medical device includes a proximal handle, a distal end effector, an elongate member connecting the end effector to the handle, and a sheath enclosing at least a portion of the elongate member. The handle may include a first mechanism coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, a second mechanism coupled to the elongate member to rotate the elongate member relative to the handle, and a locking mechanism coupled to the first mechanism to hold the first mechanism in a default position. Embodiments also include methods of positioning the medical device to perform a medical procedure.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: March 9, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: James A. Teague, Eric Cheng, Mohamed Fazni Aziz
  • Publication number: 20200373048
    Abstract: A power transmission apparatus comprising a primary magnetic circuit, a primary excitation circuit for connection to an alternating power source to supply input power to the primary magnetic circuit, and a secondary magnetic circuit for supplying output power to a load is disclosed. The power transmission apparatus facilitates wireless power transfer (WPT). The primary magnetic circuit In and the secondary magnetic circuit are detachably attached and cooperate to form a looped output magnetic circuit defining a looped output magnetic path along which an output power carrying magnetic flux flows. The primary magnetic circuit and the secondary magnetic circuit are detachably attached by a magnetic attraction force due to flowing of the output power carrying magnetic flux between the primary magnetic circuit and the secondary magnetic circuit during power transmission operations.
    Type: Application
    Filed: February 12, 2019
    Publication date: November 26, 2020
    Inventor: Ka Wai Eric Cheng
  • Patent number: 10819340
    Abstract: A method of detecting possible living body contact at an electrical contact surface, wherein the living body has a detectable characteristic initial impedance and a corresponding characteristic time constant defined by the initial impedance upon touching the electrical contact surface when the electrical contact surface is at a touching voltage, wherein the method comprises sending a non-hazardous probing signal to the contact surface, wherein the probing signal comprises one probing pulse or a plurality of probing pulses forming a probing pulse train, and the probing pulse has a base voltage level and a probing voltage level which is above the base voltage level and equal to the touching voltage or a probing voltage level which is below the base voltage level and equal to the touching voltage; detecting an electrical response from the contact surface in response to the electrical probing signal, wherein the electrical response comprises electrical response signals; and determining from the electrical respons
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: October 27, 2020
    Assignee: VICWOOD PROSPERITY TECHNOLOGY LIMITED
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng
  • Patent number: 10693321
    Abstract: In a wireless power transfer (WPT) system, a power-transmitting unit has a loop-shaped magnetic core formed by alternately arranging high-permeability (HP) and low-permeability (LP) core sections to give an interleaving pattern. A primary coil wound on the magnetic core provides a magnetic flux traveling therein when excited by an AC power source. A power-receiving unit has a pickup core shaped and dimensioned to overlie one or any LP core section, and to partially overlap HP core sections immediately adjacent to the LP core section that is overlay. The pickup core has a relative permeability higher than that of the aforesaid LP core section, causing at least a part of the magnetic flux to divert from this LP core section to the pickup core. The diverted part of magnetic flux generates electrical power in a secondary pickup coil wound on the pickup core to achieve WPT.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 23, 2020
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Ka Wai Eric Cheng, Manxin Chen
  • Publication number: 20200195008
    Abstract: An apparatus for monitoring an electrical apparatus, the load monitoring apparatus comprising a controller which is configured to capture and process voltage and current data of an electrical apparatus, which is electrically connected with a power supply, to obtain electrical parameters of the electrical apparatus, to store the electrical parameters as measured electrical parameters, to compare the measured electrical parameters with a set of pre-stored electrical parameters, to determine whether the measured electrical parameters match with the stored electrical parameters, and to operate a power switch to turn off power supply to the electrical parameters if the measured electrical parameters do not match with the stored electrical parameters.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng, Kwok Shing Wong
  • Patent number: 10680530
    Abstract: A power supply control apparatus comprising a controller, a load current monitor and power connection circuitry operable by the controller for controlling power supply from a power source to a load. The controller is to operate to receive an identification number from a load and to use the identification number to retrieve a set of stored reference electrical parameters of the load from a set of databases, to measure operational electrical parameters of the load, to compare measured electrical parameters with the reference electrical parameters, and to determine whether the load is fit for power supply with reference to outcome of comparison between the measured electrical parameters and the reference electrical parameters.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 9, 2020
    Assignee: Vicwood Prosperity Technology Limited
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng
  • Publication number: 20190363712
    Abstract: A method of detecting possible living body contact at an electrical contact surface, wherein the living body has a detectable characteristic initial impedance and a corresponding characteristic time constant defined by the initial impedance upon touching the electrical contact surface when the electrical contact surface is at a touching voltage, wherein the method comprises sending a non-hazardous probing signal to the contact surface, wherein the probing signal comprises one probing pulse or a plurality of probing pulses forming a probing pulse train, and the probing pulse has a base voltage level and a probing voltage level which is above the base voltage level and equal to the touching voltage or a probing voltage level which is below the base voltage level and equal to the touching voltage; detecting an electrical response from the contact surface in response to the electrical probing signal, wherein the electrical response comprises electrical response signals; and determining from the electrical respons
    Type: Application
    Filed: November 3, 2017
    Publication date: November 28, 2019
    Inventors: Ka Wai Eric CHENG, Man Yau LAW, Hin Hung NG
  • Patent number: 10418825
    Abstract: A voltage balancing circuit is applied to a power supply system. The power supply system comprises N power storage devices. The voltage balancing circuit comprises: N switches, N capacitors and a controller; the N switches are respectively connected to the N serial power storage devices; the N switches are respectively connected to the first terminals of the N capacitors; the second terminals of the N capacitors are connected to a common neutral line; the controller is connected to the N switches through a control line to control the switching of the N switches. The voltage balancing circuit avoids power loss when balancing the voltage of a plurality of serial power storage devices, and is small in size and low-cost, and balances voltage quickly.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 17, 2019
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Ka Wai Eric Cheng, Yuanmao Ye, Xiangdang Xue
  • Patent number: 10349959
    Abstract: A medical retrieval device of an embodiment of the present disclosure includes a proximal handle, a sheath, and a retrieval assembly. The sheath extends from the handle and includes a lumen and a distal end opposite the handle. The retrieval assembly is moveable relative to the sheath to achieve a collapsed position of the retrieval assembly within the lumen and an expanded position of the retrieval assembly when extended outside the lumen. The retrieval assembly includes a plurality of legs. At least one of the legs includes a wire having an inner core at least partially surrounded by an outer layer.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 16, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: James A. Teague, Eric Cheng, Jason W. Kear, Juli L. Curtis, Kevin R. Heath
  • Publication number: 20190190395
    Abstract: A power supply control apparatus comprising a controller, a load current monitor and power connection circuitry operable by the controller for controlling power supply from a power source to a load. The controller is to operate to receive an identification number from a load and to use the identification number to retrieve a set of stored reference electrical parameters of the load from a set of databases, to measure operational electrical parameters of the load, to compare measured electrical parameters with the reference electrical parameters, and to determine whether the load is fit for power supply with reference to outcome of comparison between the measured electrical parameters and the reference electrical parameters.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 20, 2019
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng
  • Publication number: 20190157906
    Abstract: In a wireless power transfer (WPT) system, a power-transmitting unit has a loop-shaped magnetic core formed by alternately arranging high-permeability (HP) and low-permeability (LP) core sections to give an interleaving pattern. A primary coil wound on the magnetic core provides a magnetic flux traveling therein when excited by an AC power source. A power-receiving unit has a pickup core shaped and dimensioned to overlie one or any LP core section, and to partially overlap HP core sections immediately adjacent to the LP core section that is overlay. The pickup core has a relative permeability higher than that of the aforesaid LP core section, causing at least a part of the magnetic flux to divert from this LP core section to the pickup core. The diverted part of magnetic flux generates electrical power in a secondary pickup coil wound on the pickup core to achieve WPT.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Inventors: Ka Wai Eric CHENG, Manxin CHEN
  • Patent number: 10211623
    Abstract: A power supply control device comprises a controller and power connection circuitry. The power connection circuitry comprises a switchable power connection path between a source side and a load side. The power connection path is switchable to operate in a first operation state or an on-state in which state impedance between the source side and the load side is very low to permit flow of operation current through the power connection path, or a second operation state or an off-state in which state impedance between the source side and the load side is very high to impede flow of operation current through the power connection path. The controller is to operate to transmit at least one type of enquiry signals to the load side and to determine with reference to at least one type of received responsive signals whether a load on the load side is eligible for power supply connection.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: February 19, 2019
    Assignee: Eton Solutions Limited
    Inventors: Ka Wai Eric Cheng, Man Yau Law, Hin Hung Ng
  • Patent number: 10129524
    Abstract: According to various embodiments of the invention, a system and method are provided for enabling interaction with, manipulation of, and control of depth-assigned content in depth-enhanced pictures, such as virtual reality images. Depth-assigned content can be assigned to a specified depth value. When a depth-enhanced picture is refocused at a focus depth substantially different from the specified assigned depth value, the depth-assigned content may be omitted, grayed out, blurred, or otherwise visually distinguished. In this manner, content associated with an in-focus image element can be visually distinguished from content associated with an out-of-focus image element. For example, in at least one embodiment, depth-assigned content is visible only when an image element associated with the content is in focus (or nearly in focus).
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: November 13, 2018
    Assignee: GOOGLE LLC
    Inventors: Yi-Ren Ng, Eric Cheng, Chia-Kai Liang, Kayvon Fatahalian, David John Evans, Kira Wampler, Kristen Berman, Kurt Barton Akeley
  • Publication number: 20180152015
    Abstract: A power supply control device comprises a controller and power connection circuitry. The power connection circuitry comprises a switchable power connection path between a source side and a load side. The power connection path is switchable to operate in a first operation state or an on-state in which state impedance between the source side and the load side is very low to permit flow of operation current through the power connection path, or a second operation state or an off-state in which state impedance between the source side and the load side is very high to impede flow of operation current through the power connection path. The controller is to operate to transmit at least one type of enquiry signals to the load side and to determine with reference to at least one type of received responsive signals whether a load on the load side is eligible for power supply connection.
    Type: Application
    Filed: May 2, 2016
    Publication date: May 31, 2018
    Inventors: Ka Wai Eric CHENG, Man Yau LAW, Hin Hung NG
  • Publication number: 20180008296
    Abstract: An embodiment of a medical device includes a proximal handle, a distal end effector, an elongate member connecting the end effector to the handle, and a sheath enclosing at least a portion of the elongate member. The handle may include a first mechanism coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, a second mechanism coupled to the elongate member to rotate the elongate member relative to the handle, and a locking mechanism coupled to the first mechanism to hold the first mechanism in a default position. Embodiments also include methods of positioning the medical device to perform a medical procedure.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 11, 2018
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: James A. TEAGUE, Eric CHENG, Mohamed Fazni AZIZ