Patents by Inventor Qun Shen

Qun Shen 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: 11976098
    Abstract: A cooked millet prolamin peptide for inhibiting ?-amylase and ?-glucosidase, an application thereof, and a screening method thereof are disclosed. The sequence of the peptide is selected from SEQ ID NOS: 1-6. The peptide provided in the present disclosure can effectively inhibit the activities of ?-glucosidase and ?-amylase simultaneously and is safe and non-toxic and has no side effects. Therefore, the peptide has a good potential and application prospect as a functional component in food, health products, and hypoglycemic drugs.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: May 7, 2024
    Assignee: CHINA AGRICULTURAL UNIVERSITY
    Inventors: Qun Shen, Qingyu Zhao, Chao Wang, Yong Xue
  • Publication number: 20240132523
    Abstract: This application relates to solid forms and salt forms of the PD-1/PD-L1 inhibitor 4,4?-(((((2,2?-dichloro-[1,1?-biphenyl]-3,3?-diyl)bis(azanediyl))bis(carbonyl))bis(1-methyl-1,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridine-2,5-diyl))bis(ethane-2,1-diyl))bis(bicyclo[2.2.1]heptane-1-carboxylic acid), including processes of preparation thereof, where the solid forms and salt forms are useful in the treatment of various diseases including infectious diseases and cancer.
    Type: Application
    Filed: November 21, 2023
    Publication date: April 25, 2024
    Inventors: Zhongjiang Jia, Shili Chen, Yi Li, Timothy Martin, Bo Shen, Naijing Su, Jiacheng Zhou, Qun Li
  • Publication number: 20230331791
    Abstract: A cooked millet prolamin peptide for inhibiting ?-amylase and ?-glucosidase, an application thereof, and a screening method thereof are disclosed. The sequence of the peptide is selected from SEQ ID NOS: 1-6. The peptide provided in the present disclosure can effectively inhibit the activities of ?-glucosidase and ?-amylase simultaneously and is safe and non-toxic and has no side effects. Therefore, the peptide has a good potential and application prospect as a functional component in food, health products, and hypoglycemic drugs.
    Type: Application
    Filed: March 2, 2023
    Publication date: October 19, 2023
    Applicant: China Agricultural University
    Inventors: Qun SHEN, Qingyu ZHAO, Chao WANG, Yong XUE
  • Patent number: 8173637
    Abstract: A pharmaceutical composition that contains an atypical antipsychotic drug and succinic acid, fumaric acid or a mixture of succinic acid and fumaric acid.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: May 8, 2012
    Assignee: Handa Pharmaceuticals, LLC
    Inventors: Fang-yu Liu, Zhi-qun Shen
  • Patent number: 8003637
    Abstract: A pharmaceutical composition that contains an atypical antipsychotic drug and succinic acid, fumaric acid or a mixture of succinic acid and fumaric acid.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 23, 2011
    Assignee: Handa Pharmaceuticals, LLC
    Inventors: Fang-yu Liu, Zhi-qun Shen
  • Publication number: 20110165238
    Abstract: A pharmaceutical composition that contains an atypical antipsychotic drug and succinic acid, fumaric acid or a mixture of succinic acid and fumaric acid.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 7, 2011
    Applicant: HANDA PHARMACEUTICALS, LLC.
    Inventors: Fang-yu Liu, Zhi-qun Shen
  • Publication number: 20100022511
    Abstract: A pharmaceutical composition that contains an atypical antipsychotic drug and succinic acid, fumaric acid or a mixture of succinic acid and fumaric acid.
    Type: Application
    Filed: September 5, 2008
    Publication date: January 28, 2010
    Inventors: Fang-Yu Liu, Zhi-qun Shen
  • Patent number: 6847810
    Abstract: A system for selecting an antenna from a diversity of antennas in a DECT, PWT, or TDMA-based telecommunication system. The system combines multiple criteria to improve antenna diversity selections. The principal selection process is based on preamble diversity comparisons that operate in real-time. A preamble diversity switching circuit measures receive signal strength indicators (RSSI) from a plurality of antennas and selects the antenna that provides the highest RSSI value when the difference between the RSSI values exceeds a threshold. When the value of the RSSI difference falls below the threshold, the next selection process, a cyclical redundancy check (CRC) process is employed. The CRC process decodes a CRC value from a signal's content and compares it to a second threshold. If a CRC error is detected and the CRC value exceeds the second threshold, another antenna is selected.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: January 25, 2005
    Assignee: Ericsson Inc.
    Inventors: Qun Shen, Michael Lenzo
  • Patent number: 6625231
    Abstract: Based on changing reception conditions, a wireless receiver adapts its demodulation method during active communications. Phase errors detected in the received signal indicate current reception conditions, and, optionally, received signal strength serves as an additional indicator. The receiver supports operation with fully coherent, fully non-coherent, and partially coherent demodulation. The receiver determines a demodulation quality indicator based on the phase error signal. The value of the demodulation quality indicator increases with increasing phase error. When the demodulation quality indicator is below a first defined threshold, the receiver operates with fully coherent demodulation. When the demodulation quality indicator is above a second defined threshold, the receiver operates with fully non-coherent demodulation. For demodulation quality indicator values between the first and second defined thresholds, the receiver operates with partially coherent demodulation.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: September 23, 2003
    Assignee: Ericsson Inc.
    Inventor: Qun Shen
  • Patent number: 6587444
    Abstract: A flexible channel architecture supports full-duplex, radio-frequency communication between a base station, such as a PWT or DECT base station, and a group of remote terminals. Communication from the base to the terminals is by way of a radio-frequency carrier having a first frequency, and communication from the terminals to the base is by way of a second radio-frequency carrier having a second frequency. Each carrier is organized to provide an N-timeslot time-division multiple access data stream (N an integer), so that together the two carriers provide a 2N-timeslot system. Within each data frame, data from the base to the terminals is sent on the first carrier during a first half of the frame, and data from the terminals to the base is sent on the second carrier during the remaining half of the frame.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: July 1, 2003
    Assignee: Ericsson Inc.
    Inventors: Michael Lenzo, Qun Shen
  • Patent number: 6483884
    Abstract: A system for selecting an antenna from a diversity of antennas in a DECT, PWT, or TDMA-based antenna selection and switching system is disclosed. When signals are received from a plurality of antennas, the wireless antenna selection and switching system automatically selects either a real-time or a time-delayed signal authentication process. The selected process then selects the antenna that will provide the clearest signal quality.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: November 19, 2002
    Assignee: Ericsson Inc.
    Inventors: Qun Shen, Michael Lenzo
  • Publication number: 20010055959
    Abstract: A system for selecting an antenna from a diversity of antennas in a DECT, PWT, or TDMA-based telecommunication system. The system combines multiple criteria to improve antenna diversity selections. The principal selection process is based on preamble diversity comparisons that operate in real-time. A preamble diversity switching circuit measures receive signal strength indicators (RSSl) from a plurality of antennas and selects the antenna that provides the highest RSSl value when the difference between the RSSl values exceeds a threshold. When the value of the RSSl difference falls below the threshold, the next selection process, a cyclical redundancy check (CRC) process is employed. The CRC process decodes a CRC value from a signal's content and compares it to a second threshold. If a CRC error is detected and the CRC value exceeds the second threshold, another antenna is selected.
    Type: Application
    Filed: February 27, 2001
    Publication date: December 27, 2001
    Inventors: Qun Shen, Michael Lenzo
  • Patent number: 6327302
    Abstract: A method and apparatus to accomplish fast adaptive equalization of a wireless communication channel is disclosed. The equalization method and apparatus utilize time varying adaptive filter coefficients and time varying convergence parameters in a fast adaptive algorithm to provide fast channel equalization in a wireless communication system.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: December 4, 2001
    Assignee: Ericsson Inc.
    Inventor: Qun Shen
  • Patent number: 6282247
    Abstract: Radio distortion in a radio signal is compensated for in a digital modem in a wireless communication system over a wide range of temperatures. Actual frequency responses of components in the wireless communication system contributing to distortion at various temperatures are determined. Inverses of the actual frequency responses are multiplied with a desired frequency response of the wireless communication system to produce compensation frequency responses for various temperatures. An appropriate compensation frequency response for an operating temperature is applied to the radio signal to compensate for radio distortion. Alternately, actual impulse responses of components in the wireless communication system contributing to distortion at the various temperatures are determined. The actual impulse responses are convolved with a reference signal to produce actual output signals. The desired impulse response is convolved with the same reference signal to produce a desired output signal.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: August 28, 2001
    Assignee: Ericsson Inc.
    Inventor: Qun Shen
  • Patent number: 5952963
    Abstract: A system for selecting an antenna from a diversity of antennas in a DECT, PWT, or TDMA-based telecommunication system is disclosed. The system combines multiple criteria to improve antenna diversity selections. The principal selection process is based on preamble diversity comparisons that operate in real-time. A preamble diversity switching circuit measures receive signal strength indicators (RSSI) from a plurality of antennas and selects the antenna that provides the highest RSSI value when the difference between the RSSI values exceeds a predetermined threshold. When the value of the RSSI difference falls below the predetermined threshold, a cyclical redundancy check process (CRC) and a vector detection process (SVD) are employed jointly. The CRC process decodes a CRC value from a signal's content and compares it to a predetermined threshold. If a CRC error is detected a first weighted function is calculated.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: September 14, 1999
    Assignee: Ericsson Inc.
    Inventors: Qun Shen, Michael Lenzo