Patents by Inventor James Wei

James Wei 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: 20240270779
    Abstract: Provided is a novel active ingredient derived from locust bean and the use thereof. The present invention is a compound represented by the following formula (I) or a salt thereof, or a solvate thereof.
    Type: Application
    Filed: March 14, 2022
    Publication date: August 15, 2024
    Inventors: Karl Wah-Keung TSIM, Takako SAKAI, Tina Ting-Xia DONG, Zhi-Tian PENG, Huai-You WANG, James WEI
  • Publication number: 20240216407
    Abstract: Provided is a novel active ingredient derived from locust bean and the use thereof. The present invention is a compound represented by the following formula (I) or a salt thereof, or a solvate thereof.
    Type: Application
    Filed: March 14, 2022
    Publication date: July 4, 2024
    Inventors: Karl Wah-Keung TSIM, Takuya YASHIRO, Tina Ting-Xia DONG, Zhi-Tian PENG, Huai-You WANG, James WEI
  • Publication number: 20240151644
    Abstract: A surface plasmon resonance (SPR) instrument is provided, in which light from one or more broad spectrum LEDs is sequentially passed through corresponding apertures directly into a Dove prism. Upon entering the Dove prism the light is refracted onto a surface of the prism against which an SPR sensor is attached, then internally reflects off the surface to a third surface of the Dove prism. Upon exiting the Dove prism the light is again refracted so as to be collinear with the emitted light. The light is collected by an optical fiber, passed through a filter, and conveyed to a detector. The wavelength-angle combination at which SPR occurs is found by using broad spectrum LEDs and a fixed angle. The use of apertures and the omission of collimating lenses allows a more compact SPR instrument than traditional SPR instruments.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 9, 2024
    Inventors: Ludovic LIVE, James WEI
  • Publication number: 20240144425
    Abstract: Techniques for using machine learning (ML) for image processing are disclosed. First encoded image data, generated by encoding a first one or more digital images using an encoder, is received. A first reconstructed one or more digital images are generated by decoding the encoded image data using a decoder corresponding to the encoder. A second reconstructed one or more digital images are generated by transforming the first reconstructed one or more digital images using a super-resolution ML model. The second reconstructed one or more digital images has a higher image resolution compared with the first reconstructed one or more digital images, and the super-resolution ML model is trained based on an image resolution corresponding to at least one of the second reconstructed one or more digital images.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 2, 2024
    Inventors: Jinjun XIONG, Nicholas CHEN, James WEI, Vikram Sharma MAILTHODY
  • Publication number: 20220138688
    Abstract: Systems and methods for distributed ledger-based management of metadata and chain of custody of documents among financial intuitions are disclosed. In one embodiment, a method may include: (1) receiving from internal storage for the first entity, a document or file to share with a second entity; (2) at least one first entity uploading the document or file to a first entity document sharing application; (3) saving the document or file to temporary storage a distributed ledger node for the first entity, the distributed ledger node part of a distributed ledger network; (4) writing the document or file to a first entity distributed ledger; and (5) writing metadata for the document or file to the first entity distributed ledger. A second entity document sharing program may retrieve the document or file from the first entity document sharing program into a distributed ledger node for the second entity.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 5, 2022
    Inventors: Laura SCHORNACK, Olisa OKPOKO, Boyang GONG, Nathan MCGOVERN, James WEI, Jae Wook LEE, Jesse WU
  • Patent number: 9582380
    Abstract: A network device and method may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: February 28, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Publication number: 20160299822
    Abstract: A network device and method may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Application
    Filed: May 4, 2015
    Publication date: October 13, 2016
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Publication number: 20150234722
    Abstract: A network device and method may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Application
    Filed: May 4, 2015
    Publication date: August 20, 2015
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Patent number: 9027095
    Abstract: A network device and method may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 5, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Patent number: 8067982
    Abstract: The invention relates to a transconductance amplifier, intended to supply current variations di when it receives voltage variations dv, with a desired conversion coefficient Gm called transconductance: Gm=di/dv. The amplifier comprises a PMOS transistor (MP1) and an NMOS transistor (MP2) connected by their drains, their gates both being connected to the voltage input receiving dv; the source of the first transistor is connected to a constant current source (IB1) and to a resistor (R) and to the drain of a third MOS transistor (MN3) of the same type as the first; the sources of the second (MN2) and third (MN3) transistors are commoned, the gate of the third transistor being connected to the drains of the first and second; the output is connected to a circuit (MN4) which mirrors the current of the third transistor. The resulting amplifier has good linearity and can be used in a sample and hold device used to sample charges.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: November 29, 2011
    Assignee: Commissariat a l'Energie Atomique
    Inventor: James Wei
  • Patent number: 8035422
    Abstract: The invention relates to a transconductance amplifier, providing current variations di=k·dv when it receives voltage variations dv. The amplifier comprises a first MOS transistor (MN4) whose drain provides differential currents (I?di, I+di). It comprises an output stage having a second transistor (MP5) of a type opposite to the first, whose source is linked to the drain of the first, whose gate is biased at a constant potential (Vref), and whose drain receives the current variations which are provided by the first transistor and which must be applied to a sampling capacitor.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: October 11, 2011
    Assignee: Commissariat A l'Energie Atomique
    Inventor: James Wei
  • Publication number: 20110099615
    Abstract: A network device and method may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Application
    Filed: December 29, 2010
    Publication date: April 28, 2011
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Patent number: 7886344
    Abstract: A network device may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: February 8, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: James Wei, Yosef Rizal Tamsil, Suresh Ganjigunta Padmanabhan, Subbiah Kandasamy
  • Publication number: 20100176882
    Abstract: The invention relates to a transconductance amplifier, providing current variations di=k·dv when it receives voltage variations dv. The amplifier comprises a first MOS transistor (MN4) whose drain provides differential currents (I?di, I+di). It comprises an output stage having a second transistor (MP5) of a type opposite to the first, whose source is linked to the drain of the first, whose gate is biased at a constant potential (Vref), and whose drain receives the current variations which are provided by the first transistor and which must be applied to a sampling capacitor.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 15, 2010
    Applicant: Commissariat A L'Energie Atomique
    Inventor: James Wei
  • Publication number: 20100179977
    Abstract: The invention relates to sampled filters with finite impulse response, or FIR filters. According to the invention, there is proposed an FIR filter comprising a transconductance amplifier with controllable gain (AGM), at least one sampling capacitor (CE) intended to receive an output current (di) from the amplifier and to periodically accumulate the charges produced by N successive samples of this current, and means for controlling the gain of the amplifier to give the amplifier a desired individual gain for each of the N samples. The weighting of the coefficients of the finite impulse response filter is effected through the transconductance gain of the amplifier and not through the value of a capacitor.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 15, 2010
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: James Wei, Dominique Morche
  • Publication number: 20100176884
    Abstract: The invention relates to a transconductance amplifier, intended to supply current variations di when it receives voltage variations dv, with a desired conversion coefficient Gm called transconductance: Gm=di/dv. The amplifier comprises a PMOS transistor (MP1) and an NMOS transistor (MP2) connected by their drains, their gates both being connected to the voltage input receiving dv; the source of the first transistor is connected to a constant current source (IB1) and to a resistor (R) and to the drain of a third MOS transistor (MN3) of the same type as the first; the sources of the second (MN2) and third (MN3) transistors are commoned, the gate of the third transistor being connected to the drains of the first and second; the output is connected to a circuit (MN4) which mirrors the current of the third transistor. The resulting amplifier has good linearity and can be used in a sample and hold device used to sample charges.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 15, 2010
    Applicant: Commissariat A L'Energie Atomique
    Inventor: James Wei
  • Patent number: 7167063
    Abstract: A low-phase noise voltage control oscillator (VCO) comprising a voltage source for supplying control voltage to the VCO core; a phase lock loop, having an output connected to an input of the voltage source; a VCO core, including an amplifier circuit with noiseless biasing and a tank circuit with noiseless biasing of the varactors; having an output connected to an input of the phase lock loop; and an attenuator, located between the voltage source and the VCO core, for reducing phase noise from the voltage source to the VCO core.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: January 23, 2007
    Assignee: Sirific Wireless Corporation
    Inventors: Volodymyr Yavorskyy, Tajinder Manku, James Wei
  • Publication number: 20060056284
    Abstract: A network device may provide secure fallback operations. The device includes a port allowing the device to communicate with a network and a processor to generate a security credential, provide the security credential to a call manager during initialization, and provide the security credential to a secondary device during fallback operations. The network device may include a memory to store the security credential and routing information for fallback operations.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 16, 2006
    Inventors: James Wei, Yosef Tamsil, Suresh Padmanabhan, Subbiah Kandasamy
  • Publication number: 20050134392
    Abstract: A low-phase noise voltage control oscillator (VCO) comprising a voltage source for supplying control voltage to the VCO core; a phase lock loop, having an output connected to an input of the voltage source; a VCO core, including an amplifier circuit with noiseless biasing and a tank circuit with noiseless biasing of the varactors; having an output connected to an input of the phase lock loop; and an attenuator, located between the voltage source and the VCO core, for reducing phase noise from the voltage source to the VCO core.
    Type: Application
    Filed: December 22, 2004
    Publication date: June 23, 2005
    Inventors: Volodymyr Yavorskyy, Tajinder Manku, James Wei
  • Patent number: 6750681
    Abstract: An integrated circuit logic topology or architecture suitable for low voltage differential logic operating at radio frequencies is disclosed. The topology, referred to as enhanced pseudo common mode logic, is similar to and compatible with traditional CML, and provides the additional advantage of eliminating the need for level conversion between consecutive logic gates, thereby increasing the potential maximum operating frequency of subsystems implemented using the invention. The invention retains most of the advantages of traditional CML, and in addition permits the independent selection of output logic high level and output logic low level so that they may be matched with the succeeding circuit input levels.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: June 15, 2004
    Assignee: SiRiFIC Wireless Corporation
    Inventor: James Wei