Patents by Inventor Hang Jin

Hang Jin 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: 11239985
    Abstract: Echo cancellation in multiple port Full Duplex (FDX) nodes and amplifiers may be provided. First, a plurality of signals may be provided to a cancelation device. Each of the plurality of signals may be configured to provide the cancelation device with a corresponding plurality of configurations. Next, a plurality of effective echo power values respectively corresponding to the plurality of configurations may be received. A one of the plurality of configurations corresponding to a lowest of the plurality of effective echo power values may then be selected. The cancelation device may then be operated at the selected one of the plurality of configurations.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: February 1, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Hang Jin, John T. Chapman
  • Publication number: 20220006306
    Abstract: A fire spreading prevention method in an energy storage system (ESS) composed of a plurality of battery racks including an individual battery rack fire detection step of detecting whether a fire occurs for each of the plurality of battery racks and a battery rack forced discharge step of forcibly discharging at least some of the plurality of battery racks when a fire is detected in the individual battery rack fire detection step.
    Type: Application
    Filed: January 31, 2020
    Publication date: January 6, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Ji Won LEE, Jong Soo LEE, Sung Han YOON, Jun Min LEE, Hyun Min LEE, Hang Jin CHO
  • Publication number: 20210353704
    Abstract: A Maclura pubescens extract or fraction or a Prunus cerasoides extract or fraction having neuroglobin (Ngb) activation and neuroprotective effects and, on the basis thereof, a neuroprotective composition containing, as an active ingredient, a Maclura pubescens extract or fraction or a Prunus cerasoides extract or fraction. The neuroprotective composition can be used, through the activation of neuroglobin (Ngb), as a pharmaceutical composition or a food composition for treatment, alleviation and prevention of a stroke, a cerebral infarction, thrombosis, cerebral degenerative disease, vascular dementia, memory loss, short-term memory impairment, a concentration disorder, anxiety, nervousness and the like, and for brain damage protection, brain function improvement and cranial nerve cell protection.
    Type: Application
    Filed: June 10, 2019
    Publication date: November 18, 2021
    Inventors: Yun Seon SONG, Min Sun CHANG, So Dam KIM, Da Sol LIM, You Jung YUN, Su Min KANG, Sang Ho CHOI, Sang Mi EUM, Soo Yong KIM, Jin Hyub PAIK, Seo Hea KIM, Na Kyung LEE, Youn In KIM, Sang Woo LEE, Hang JIN, Wan Yi LI
  • Patent number: 10985800
    Abstract: Echo cancellation to alleviate timing varying channels may be provided. First, a feedback signal corresponding to one of a plurality of downstream paths and a combination upstream signal comprising a combination of upstream signals from a plurality of upstream paths may be received. Next, a plurality of echo corrected signals may be created using the feedback signal, the combination upstream signal, and a plurality of echo cancelation coefficients that each respectively correspond to each one of the plurality of echo corrected signals and that are different from each other. Then a one of the plurality of echo cancelation coefficients that corresponds to a one of the plurality of echo corrected signals that provides a best echo cancelation performance as compared to other ones of the plurality of echo corrected signals may be selected to use.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: April 20, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: John T. Chapman, Hang Jin, Tong Liu
  • Patent number: 10965332
    Abstract: Echo Cancellation (EC) training for a Full Duplex (FDX) amplifier may be provided. First, a Downstream (DS) signal at a fixed location on a subcarrier frequency may be received. Next, an Upstream (US) echo may be determined from the received DS signal at the fixed location on the subcarrier frequency. Determining the upstream echo may comprise subtracting a known value from the received DS signal at the fixed location on the subcarrier frequency. An Echo Cancelation (EC) coefficient may then be determined. Determining the EC coefficient may comprise dividing the determined US echo by a reference signal comprising an US signal. Next, EC may be performed. Performing EC may comprise subtracting the echo from the DS signal.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 30, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventor: Hang Jin
  • Patent number: 10931328
    Abstract: Upstream (US) funneling noise suppression may be provided. First, a signal comprising a plurality of mini-slots in a two dimensional time frequency space may be received by a funneling noise suppressor. Next, the power level in each of the plurality of mini-slots may be determined. The received signal may then be outputted. Outputting the received signal may comprises outputting the received signal with mini-slots muted in the received signal that have a power level less than a predetermined threshold.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 23, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventor: Hang Jin
  • Patent number: 10911210
    Abstract: A system to support Time Division Duplex (TDD) Full Duplex (FDX) with a remote Duty Cycle (DS) framer may be provided. The system may comprise a core and a Remote PHY Device (RPD). The core may comprise a Downstream (DS) Quality-of-Service (QoS) scheduler and a DS duty cycle rate regulator. The DS duty cycle rate regulator may comprise a plurality of token buckets and a plurality of data framing queues. The RPD may comprise a plurality of TG queue blocks and switching logic.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 2, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Tong Liu, John T. Chapman, Hang Jin
  • Patent number: 10841936
    Abstract: A centralized Upstream (US) scheduling system configured to provide a US split scheduler may be provided. The centralized US scheduling system may comprise a US scheduler and a map editor. The US scheduler may be configured to create a map for US bandwidth allocation. The map may include Steady-State Grants (SGNTs) and Editable Grants (EGNTs). The map editor may be configured to receive the map from the US scheduler and to assign the EGNTs among low latency Service Flows (SFs).
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: November 17, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: John T. Chapman, Tong Liu, Hang Jin
  • Publication number: 20200336280
    Abstract: Echo cancellation in multiple port Full Duplex (FDX) nodes and amplifiers may be provided. First, a plurality of signals may be provided to a cancelation device. Each of the plurality of signals may be configured to provide the cancelation device with a corresponding plurality of configurations. Next, a plurality of effective echo power values respectively corresponding to the plurality of configurations may be received. A one of the plurality of configurations corresponding to a lowest of the plurality of effective echo power values may then be selected. The cancelation device may then be operated at the selected one of the plurality of configurations.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Patent number: 10797750
    Abstract: An example apparatus for supporting digital pre-distortion (DPD) and full duplex (FDX) in cable network environments is provided and includes a first path for signals being transmitted out of the apparatus, a second path for signals being received into the apparatus, a DPD actuator located on the first path, an amplifier located on the first path, an echo cancellation (EC) actuator located on the second path, and a data interface including a plurality of channels connecting the apparatus to a signal processor. DPD coefficients, EC coefficients and delay parameters are provided over the data interface from the signal processor to the apparatus. The DPD actuator predistorts signals on the first path using the DPD coefficients compensating for distortions introduced by the amplifier, and the EC actuator reduces interferences in signals on the second path using the EC coefficients and the delay parameters, facilitating FDX communication by the apparatus.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 6, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Publication number: 20200313721
    Abstract: Upstream (US) funneling noise suppression may be provided. First, a signal comprising a plurality of mini-slots in a two dimensional time frequency space may be received by a funneling noise suppressor. Next, the power level in each of the plurality of mini-slots may be determined. The received signal may then be outputted. Outputting the received signal may comprises outputting the received signal with mini-slots muted in the received signal that have a power level less than a predetermined threshold.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 1, 2020
    Applicant: Cisco Technology, Inc.
    Inventor: Hang Jin
  • Publication number: 20200313705
    Abstract: Echo Cancellation (EC) training for a Full Duplex (FDX) amplifier may be provided. First, a Downstream (DS) signal at a fixed location on a subcarrier frequency may be received. Next, an Upstream (US) echo may be determined from the received DS signal at the fixed location on the subcarrier frequency. Determining the upstream echo may comprise subtracting a known value from the received DS signal at the fixed location on the subcarrier frequency. An Echo Cancelation (EC) coefficient may then be determined. Determining the EC coefficient may comprise dividing the determined US echo by a reference signal comprising an US signal. Next, EC may be performed. Performing EC may comprise subtracting the echo from the DS signal.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 1, 2020
    Applicant: Cisco Technology, Inc.
    Inventor: Hang Jin
  • Publication number: 20200304170
    Abstract: Proactive Echo Cancellation (EC) training may be provided. First, a plurality of Echo Cancellation Training Opportunities (ECTOs) may be identified in an upstream bandwidth allocation. Identifying the ECTOs may comprise identifying a corresponding plurality of mini-slots in a two dimensional time frequency space designated as not to be used for Upstream (US) traffic. Then Echo Cancellation Training (ECT) may be conducted for each of the plurality of ECTOs.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 24, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Hang Jin, Tong Liu
  • Patent number: 10771109
    Abstract: A hybrid active tap may be provided. The hybrid active tap may comprise a first branch and a second branch. The first branch may be disposed between a first diplexer and a second diplexer. The first branch may correspond to a first frequency spectrum. The second branch may be disposed between the first diplexer and the second diplexer. The second branch may correspond to a second frequency spectrum. The hybrid active tap may further comprise a third branch, a fourth branch, a splitter, and an amplification device. The third branch may be disposed between a first coupler and a third diplexer. The first coupler may be coupled to the first branch. The fourth branch may be disposed between a second coupler and the third diplexer. The second coupler may be coupled to the second branch. The splitter may be connected to the third diplexer and the amplification device may be disposed in the first branch.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Patent number: 10771106
    Abstract: Proactive Echo Cancellation (EC) training may be provided. First, a plurality of Echo Cancelation Training Opportunities (ECTOs) may be identified in an upstream bandwidth allocation. Identifying the ECTOs may comprise identifying a corresponding plurality of mini-slots in a two dimensional time frequency space designated as not to be used for Upstream (US) traffic. Then Echo Cancelation Training (ECT) may be conducted for each of the plurality of ECTOs.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 8, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hang Jin, Tong Liu
  • Publication number: 20200274577
    Abstract: A hybrid active tap may be provided. The hybrid active tap may comprise a first branch and a second branch. The first branch may be disposed between a first diplexer and a second diplexer. The first branch may correspond to a first frequency spectrum. The second branch may be disposed between the first diplexer and the second diplexer. The second branch may correspond to a second frequency spectrum. The hybrid active tap may further comprise a third branch, a fourth branch, a splitter, and an amplification device. The third branch may be disposed between a first coupler and a third diplexer. The first coupler may be coupled to the first branch. The fourth branch may be disposed between a second coupler and the third diplexer. The second coupler may be coupled to the second branch. The splitter may be connected to the third diplexer and the amplification device may be disposed in the first branch.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 27, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman
  • Patent number: 10751378
    Abstract: The present invention relates to a composition for suppressing chronic obstructive pulmonary disease (COPD) comprising a Pistacia weinmannifolia extract, a fraction thereof, or a compound isolated therefrom and, more particularly, to a pharmaceutical composition for preventing or treating COPD comprising a Pistacia weinmannifolia extract, a fraction thereof, or a compound isolated therefrom; a food composition for preventing or improving COPD, and the compound isolated therefrom. The composition comprising a Pistacia weinmannifolia extract, a fraction thereof, or a compound isolated therefrom, according to the present invention, is not toxic, suppresses the invasion of inflammatory cells into the bronchial tube of a COPD-induced animal model, and effectively suppresses the expression of CXCL-1, TNF-?, or MIP-2.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: August 25, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Sei Ryang Oh, Kyung Seop Ahn, Seung Hyung Kim, In Sik Shin, Hang Jin, Jung Hee Kim, Hyung Won Ryu, Wan Yi Li, Sang Woo Lee, Joong Ku Lee, Sang Ho Choi
  • Publication number: 20200245346
    Abstract: A centralized Upstream (US) scheduling system configured to provide a US split scheduler may be provided. The centralized US scheduling system may comprise a US scheduler and a map editor. The US scheduler may be configured to create a map for US bandwidth allocation. The map may include Steady-State Grants (SGNTs) and Editable Grants (EGNTs). The map editor may be configured to receive the map from the US scheduler and to assign the EGNTs among low latency Service Flows (SFs).
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: John T. Chapman, Tong Liu, Hang Jin
  • Publication number: 20200244431
    Abstract: A system to support Time Division Duplex (TDD) Full Duplex (FDX) with a remote Duty Cycle (DS) framer may be provided. The system may comprise a core and a Remote PHY Device (RPD). The core may comprise a Downstream (DS) Quality-of-Service (QoS) scheduler and a DS duty cycle rate regulator. The DS duty cycle rate regulator may comprise a plurality of token buckets and a plurality of data framing queues. The RPD may comprise a plurality of TG queue blocks and switching logic.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Applicant: Cisco Technology, Inc.
    Inventors: Tong Liu, John T. Chapman, Hang Jin
  • Patent number: 10720961
    Abstract: Echo cancellation may be provided. First, a feedback signal corresponding to a plurality of downstream paths may be received. Next, during an upstream silence period, a sample of a combination upstream signal may be received comprising a combination of upstream signals from a plurality of upstream paths. An echo correcting signal may then be created using the received feedback signal and the received sample of the combination upstream signal. Downstream echoes may be cancel from the combination upstream signal based on the created echo correcting signal.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: July 21, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Hang Jin, John T. Chapman