Patents by Inventor Yanping Zhou

Yanping Zhou 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: 12200277
    Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.
    Type: Grant
    Filed: January 2, 2024
    Date of Patent: January 14, 2025
    Assignee: HULU, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Publication number: 20240413826
    Abstract: The present disclosure provides a phase-locked loop, a frequency divider and a communication device that enable fast locking. The phase-locked loop comprises a phase frequency detector, a charge pump, a loop filter, a voltage-controlled oscillator, a fast-locking control unit and a frequency divider, wherein the frequency divider comprises a plurality of cascaded frequency division units and a reset/set control circuit, the reset/set control circuit being configured to receive the reset signal outputted by the fast-locking control unit, and in response to transition of the reset signal from a low level to the high level, change a state code combination composed of respective state codes of the cascaded frequency division units from the first state to the second state, to cause transition of a feedback signal outputted by the frequency divider from the low level to the high level. With the frequency divider and phase-locked loop, fast locking can be achieved.
    Type: Application
    Filed: June 10, 2024
    Publication date: December 12, 2024
    Inventors: Yanping ZHOU, Chun Geik TAN, Ruili WU
  • Patent number: 12149760
    Abstract: In some embodiments, after receiving a first set of video segments of a video, a method starts a first computing instance and receives a video segment of the video using the first computing instance. A measurement is calculated based on receiving the video segment. The method uses the measurement to determine whether the first computing instance should continue to be used to receive video segments in the video or should be terminated to not receive video segments in the video.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: November 19, 2024
    Assignee: HULU, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Publication number: 20240223352
    Abstract: A fast-locking phase-locked loop comprises a phase frequency detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency divider, and a fast-locking control unit which receives a reference clock signal at its first input terminal and a phase-locking enable signal at its second input terminal and outputs a reset signal at a high level in response to a rising edge of the reference clock signal when receiving the phase-locking enable signal, wherein the frequency divider is connected to an output terminal of the fast-locking control unit and configured to trigger generation of a feedback signal in response to the reset signal at the high level, and the phase frequency detector is connected to the output terminal of the fast-locking control unit and configured to output a phase error between the reference clock signal and the feedback signal in response to the reset signal at the high level.
    Type: Application
    Filed: December 13, 2023
    Publication date: July 4, 2024
    Inventors: Yanping ZHOU, CHUN GEIK TAN, SY-Chyuan HWU
  • Patent number: 12015688
    Abstract: A fast-locking phase-locked loop comprises a phase frequency detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency divider, and a fast-locking control unit which receives a reference clock signal at its first input terminal and a phase-locking enable signal at its second input terminal and outputs a reset signal at a high level in response to a rising edge of the reference clock signal when receiving the phase-locking enable signal, wherein the frequency divider is connected to an output terminal of the fast-locking control unit and configured to trigger generation of a feedback signal in response to the reset signal at the high level, and the phase frequency detector is connected to the output terminal of the fast-locking control unit and configured to output a phase error between the reference clock signal and the feedback signal in response to the reset signal at the high level.
    Type: Grant
    Filed: December 13, 2023
    Date of Patent: June 18, 2024
    Assignee: Hangzhou Geo-chip Technology Co., Ltd.
    Inventors: Yanping Zhou, Chun Geik Tan, Sy-Chyuan Hwu
  • Publication number: 20240137585
    Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: HULU, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Patent number: 11962299
    Abstract: The present disclosure relates to a fractional frequency divider, a radio frequency transceiver, and a method of configuring a phase delay in the fractional frequency divider. The fractional frequency divider comprises a counter, a multiplexer, and a delay module. The method is applicable to the fractional frequency divider. The radio frequency transceiver comprises the fractional frequency divider, and the fractional frequency divider adopts the method. According to the aforesaid technical solution, the present disclosure has advantages as follows: the embodiments of the present disclosure can minimize the timing inaccuracy and suppress the output jitter and output spurs; and the embodiments of the present disclosure can effectively extend the operating frequency range of the fractional frequency divider.
    Type: Grant
    Filed: August 3, 2023
    Date of Patent: April 16, 2024
    Assignee: Hangzhou Geo-chip Technology Co., Ltd.
    Inventors: Yanping Zhou, Ruili Wu, Chun Geik Tan
  • Publication number: 20240063799
    Abstract: The present disclosure relates to a fractional frequency divider, a radio frequency transceiver, and a method of configuring a phase delay in the fractional frequency divider. The fractional frequency divider comprises a counter, a multiplexer, and a delay module. The method is applicable to the fractional frequency divider. The radio frequency transceiver comprises the fractional frequency divider, and the fractional frequency divider adopts the method. According to the aforesaid technical solution, the present disclosure has advantages as follows: the embodiments of the present disclosure can minimize the timing inaccuracy and suppress the output jitter and output spurs; and the embodiments of the present disclosure can effectively extend the operating frequency range of the fractional frequency divider.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 22, 2024
    Inventors: Yanping ZHOU, Ruili WU, Chun Geik TAN
  • Patent number: 11902599
    Abstract: In some embodiments, a method sends a set of requests for a video using a first protocol. The first protocol is selected from a plurality of protocols available for use in a playback session for the video. The method compares a first performance of the first protocol and a second performance of a second protocol and determines whether to switch from using the first protocol to the second protocol in the playback session based on the comparing.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 13, 2024
    Assignee: Hulu, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Publication number: 20230111188
    Abstract: In some embodiments, after receiving a first set of video segments of a video, a method starts a first computing instance and receives a video segment of the video using the first computing instance. A measurement is calculated based on receiving the video segment. The method uses the measurement to determine whether the first computing instance should continue to be used to receive video segments in the video or should be terminated to not receive video segments in the video.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Applicant: HULU, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Patent number: 11570496
    Abstract: In some embodiments, a method receives a plurality of video segments of a video using a plurality of computing instances and measures data received for the plurality of computing instances during a time window. A video segment for a computing instance in the plurality of computing instances is not fully downloaded during the time window. The method calculates a video delivery metric for the plurality of computing instances based on the data received and calculates an evaluation measurement based on the video delivery metric. The evaluation measurement is used to control an addition or a termination of a computing instance.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: January 31, 2023
    Assignee: HULU, LLC
    Inventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
  • Patent number: 11411570
    Abstract: The present disclosure provides a multi modulus frequency divider and an electronic device. The duty cycle adjusting circuit in the multi modulus frequency divider is configured to generate a second output clock signal according to a first output clock signal and an input modulus signal received by one or more frequency division units, the frequency of the second output clock signal is the same as that of the first output clock signal, and the duty cycle of the second output clock signal is different from that of the first output clock signal. The duty cycle of the clock signal output by the multi modulus frequency divider provided in the present disclosure is generally closer to 50%.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: August 9, 2022
    Assignee: HANGZHOU GEO-CHIP TECHNOLOGY CO., LTD.
    Inventor: Yanping Zhou
  • Publication number: 20220182695
    Abstract: In some embodiments, a method receives a plurality of video segments of a video using a plurality of computing instances and measures data received for the plurality of computing instances during a time window. A video segment for a computing instance in the plurality of computing instances is not fully downloaded during the time window. The method calculates a video delivery metric for the plurality of computing instances based on the data received and calculates an evaluation measurement based on the video delivery metric. The evaluation measurement is used to control an addition or a termination of a computing instance.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 9, 2022
    Inventors: Tongyu DAI, Lan XIE, Wenhao ZHANG, Deliang FU, Chao LI, Qiang SHE, Yuting GUI, Yicheng LIU, Yanping ZHOU, Xizhi XU
  • Publication number: 20220182685
    Abstract: In some embodiments, a method sends a set of requests for a video using a first protocol. The first protocol is selected from a plurality of protocols available for use in a playback session for the video. The method compares a first performance of the first protocol and a second performance of a second protocol and determines whether to switch from using the first protocol to the second protocol in the playback session based on the comparing.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 9, 2022
    Inventors: Tongyu DAI, Lan XIE, Wenhao ZHANG, Deliang FU, Chao LI, Qiang SHE, Yuting GUI, Yicheng LIU, Yanping ZHOU, Xizhi XU
  • Patent number: 11082741
    Abstract: In some embodiments, a method receives one or more segments for content from a first content delivery network during a playback session for the content. The content includes a number of segments. The method evaluates buffer occupancy of a buffer configured to store segments of the content for playback and evaluates a number of times of a failure to download a segment for the content. The buffer occupancy is compared to a first threshold and the number of times of the failure to a second threshold. The method determines a switch from the first content delivery network to a second content delivery network during the playback session based on the comparing.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: August 3, 2021
    Assignee: HULU, LLC
    Inventors: Lan Xie, Shenglan Huang, Wenhao Zhang, Deliang Fu, Shun Ni, Qiang She, Yanping Zhou, Yicheng Liu, Yuting Gui
  • Patent number: 11058008
    Abstract: A manufacturing method, Printed Circuit Board (PCB) panel, and a PCB are disclosed. The method includes forming a cavity in a PCB that is in a PCB panel that includes a frame and stays, mounting an electronic component, heating the PCB panel, and cutting the stays. The PCB panel includes a frame body and a PCB coupled to the frame body via stays. The PCB includes a cavity. A first cavity stay is located near the cavity. Extended lines extend from the cavity, and the cavity stay extends at least between the extended lines. The PCB includes a cavity and a connection point from a cavity stay near the cavity.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 6, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Hirohide Komiyama, Seiji Yamasaki, Hua Wang, Yanping Zhou
  • Publication number: 20210152882
    Abstract: In some embodiments, a method receives one or more segments for content from a first content delivery network during a playback session for the content. The content includes a number of segments. The method evaluates buffer occupancy of a buffer configured to store segments of the content for playback and evaluates a number of times of a failure to download a segment for the content. The buffer occupancy is compared to a first threshold and the number of times of the failure to a second threshold. The method determines a switch from the first content delivery network to a second content delivery network during the playback session based on the comparing.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Applicant: HULU, LLC
    Inventors: Lan Xie, Shenglan Huang, Wenhao Zhang, Deliang Fu, Shun Ni, Qiang She, Yanping Zhou, Yicheng Liu, Yuting Gui
  • Publication number: 20210085584
    Abstract: A system and method for dyeing and/or lightening keratin-containing fibers, as well as a lightening composition for use in such a system and method are described, which are able to provide a high levels of lift while avoiding irritation and/or soothing the scalp. The system and method include a first composition, which may be a lightening composition. That composition includes (i) at least two alkali components for lightening keratin-containing fibers, wherein one of the at least two alkali components comprises sodium metasilicate and/or a metasilicate salt, and the composition comprises about 0.1 to about 10 weight percent of the at least two alkali components; and (ii) an arginine compound, wherein the arginine compound is present in an amount that would be effective to reduce irritation to a surface of a mammal having keratin-containing fibers. The system and method also include an oxidizing agent composition comprising an oxidizing agent, wherein the system has a pH of at least about 9 to about 12.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Inventors: Marina Azizova, Yanping Zhou, Razi Abbas
  • Patent number: 10849836
    Abstract: A one step hair color and relaxer system comprising: an alkalizing agent in the range between about 0.1% to about 8%, based upon the total concentration of the hair color and relaxer system; a hair dye; and an oxidizing agent in the range between about 0.1% to about 6%, based upon the total concentration of the hair color and relaxer system; wherein the pH of the hair color and relaxer system is in the range between about 9 to about 14.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 1, 2020
    Assignee: Zotos International, Inc.
    Inventors: Marina Azizova, Yanping Zhou, David Erlingheuser, Rushi Tasker
  • Patent number: 10639265
    Abstract: The present invention discloses preservative-free toothpaste for children. The composition forming the preservative-free toothpaste for children consists of vitamin, calcium glycerophosphate, xylitol, sorbitol, polyethylene glycol, cellulose, hydroxypropyl guar gum, sodium lauryl sulfate, flavors and deionized water. The composition contains, by weight percentage, 0.01-0.06% of vitamin, 0.1-0.5% calcium glycerophosphate and 0.1-1% of xylitol. The vitamin comprises both vitamin E and vitamin C. In the present invention, vitamin E, vitamin C, calcium glycerophosphate and xylitol are combined in a certain proportion. The vitamin nourishes the children's tender gums. The calcium glycerophosphate provides calcium supplementation to the teeth. The xylitol has a reduced content of sugar, which prevents tooth decay and strengthens the teeth.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: May 5, 2020
    Assignee: SUZHOU FRESH HEALTH TECHNOLOGY CO., LTD
    Inventors: Yanping Zhou, Jianlin Mao