Patents by Inventor Xuefeng Zhao
Xuefeng Zhao 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).
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Patent number: 11969037Abstract: The present application discloses anti-impact gloves, which include a glove body and an anti-impact protective layer arranged on the back of the glove body. The anti-impact protective layer includes a finger protection layer, which includes a thumb protective layer and a plurality of universal finger protective layers; an anisotropic flex slit is arranged on the first dactylus of the thumb protective layer near the first knuckle, and a flex cut structure is provided at the metacarpophalangeal joint. A plurality of full flex cuts are positioned at the fingertip part of each universal finger protective layer; the hand back protective layer includes a plurality of vertical protection blocks and a plurality of long strip-shaped flex slits arranged alternately; the bottom layer is fixed on the back of the glove body.Type: GrantFiled: December 30, 2019Date of Patent: April 30, 2024Assignee: Shanghai Select Safety Products Co., Ltd.Inventors: Wei Zhao, Jason Leigh Sparrow, Xiuyun Zhang, Xuefeng Yan
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Publication number: 20240119113Abstract: A fault detection method for a rotating machine based on sparse time synchronous averaging is disclosed, and the method includes: collecting a vibration signal and a rotating frequency or rotating frequency pulse signal of the rotating machine and performing analog-to-digital conversion to obtain the vibration signal and rotating speed information by a sensor; according to the type and number of detection components in the rotating machine, constructing a component-aware comb vector g based on the vibration signal and rotating speed information, wherein the type includes the gear, rotor and bearing; constructing a quasi-time synchronous average vector w based on the component-aware comb vector g; constructing a sparse time synchronous averaging model F by using the quasi-time synchronous average vector w; solving the sparse time synchronous averaging model F with an optimization solution algorithm to obtain a sparse spectrum and a reconstruction time signal.Type: ApplicationFiled: May 5, 2023Publication date: April 11, 2024Inventors: Shibin WANG, Jianghan ZHOU, Xuefeng CHEN, Zhibin ZHAO, Baoqing DING, Chuang SUN
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Patent number: 11876090Abstract: An electrostatic discharge protection circuit capable of clamping both positive and negative ESD events and passing signals is provided. Generally, the circuit includes a p-channel field-effect transistor (PFET) clamp coupled to a pin to be protected, the PFET clamp including a plurality of PFETs in a DN-well, an n-channel field-effect transistors (NFET) clamp coupled between ground and the pin through the PFET clamp, the NFET clamp including a plurality of NFETs coupled in series, and a bias network for biasing a voltage of the DN well to substantially equal a voltage on the pin when the voltage on the pin is greater than ground potential, and to ground potential when the pin voltage is less than ground potential. The plurality of are PFETs coupled in parallel between the pin and the NFET clamp, each of the PFETs is coupled to the pin though one of a plurality ballast resistors.Type: GrantFiled: November 17, 2022Date of Patent: January 16, 2024Assignee: Cypress Semiconductor CorporationInventors: David Michael Rogers, Eric N. Mann, Eric Lee Swindlehurst, Toru Miyamae, Timothy John Williams, Ryuta Nagai, Sungkwon Lee, Ravindra M. Kapre, Mimi Xuefeng Zhao Qian, Yan Yi, Dung Si Ho, Boo Chin-Hua
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Publication number: 20230361889Abstract: A radio frequency device includes antennas, transmitters, power detectors, a memory storing instructions and an antenna gain lookup table, and processors. The processors execute instructions that include instructing the transmitters to send transmission signals through the antennas to form a first beamformed signal having a first beam direction and a first frequency using multiple input powers. The instructions include determining radio frequency integrated circuit (RFIC) gains associated with the transmitters based on the transmission signals using the power detectors. Moreover, the instructions include determining the antenna gains for the antennas based on the first beam direction and the first frequency of the first beamformed signal, and the antenna gain lookup table. The instructions also include determining total gains based on the RFIC gains and the antenna gains, and adjusting the input powers based on the total gains and a back off power signal.Type: ApplicationFiled: July 21, 2023Publication date: November 9, 2023Inventors: Wassim El-Hassan, Gurusubrahmaniyan Subrahmaniyan Radhakrishnan, Srinivasa Yasasvy Sateesh Bhamidipati, Daphne Irene Gorman, Vineet Nayak, Xuefeng Zhao
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Publication number: 20230343779Abstract: An electrostatic discharge protection circuit capable of clamping both positive and negative ESD events and passing signals is provided. Generally, the circuit includes a p-channel field-effect transistor (PFET) clamp coupled to a pin to be protected, the PFET clamp including a plurality of PFETs in a DN-well, an n-channel field-effect transistors (NFET) clamp coupled between ground and the pin through the PFET clamp, the NFET clamp including a plurality of NFETs coupled in series, and a bias network for biasing a voltage of the DN well to substantially equal a voltage on the pin when the voltage on the pin is greater than ground potential, and to ground potential when the pin voltage is less than ground potential. The plurality of are PFETs coupled in parallel between the pin and the NFET clamp, each of the PFETs is coupled to the pin though one of a plurality ballast resistors.Type: ApplicationFiled: November 17, 2022Publication date: October 26, 2023Applicant: Cypress Semiconductor CorporationInventors: David Michael Rogers, Eric N. Mann, Eric Lee Swindlehurst, Toru Miyamae, Timothy John Williams, Ryuta Nagai, Sungkwon Lee, Ravindra M. Kapre, Mimi Xuefeng Zhao Qian, Yan Yi, Dung Si Ho, Boo Chin-Hua
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Patent number: 11722230Abstract: A radio frequency device includes antennas, transmitters, power detectors, a memory storing instructions and an antenna gain lookup table, and processors. The processors execute instructions that include instructing the transmitters to send transmission signals through the antennas to form a first beamformed signal having a first beam direction and a first frequency using multiple input powers. The instructions include determining radio frequency integrated circuit (RFIC) gains associated with the transmitters based on the transmission signals using the power detectors. Moreover, the instructions include determining the antenna gains for the antennas based on the first beam direction and the first frequency of the first beamformed signal, and the antenna gain lookup table. The instructions also include determining total gains based on the RFIC gains and the antenna gains, and adjusting the input powers based on the total gains and a back off power signal.Type: GrantFiled: October 8, 2020Date of Patent: August 8, 2023Assignee: Apple Inc.Inventors: Wassim El-Hassan, Gurusubrahmaniyan Subrahmaniyan Radhakrishnan, Srinivasa Yasasvy Sateesh Bhamidipati, Daphne Irene Gorman, Vineet Nayak, Xuefeng Zhao
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Patent number: 11521962Abstract: An electrostatic discharge protection circuit capable of clamping both positive and negative ESD events and passing signals is provided. Generally, the circuit includes a p-channel field-effect transistor (PFET) clamp coupled to a pin to be protected, the PFET clamp including a plurality of PFETs in a DN-well, an n-channel field-effect transistors (NFET) clamp coupled between ground and the pin through the PFET clamp, the NFET clamp including a plurality of NFETs coupled in series, and a bias network for biasing a voltage of the DN well to substantially equal a voltage on the pin when the voltage on the pin is greater than ground potential, and to ground potential when the pin voltage is less than ground potential. The plurality of are PFETs coupled in parallel between the pin and the NFET clamp, each of the PFETs is coupled to the pin though one of a plurality ballast resistors.Type: GrantFiled: September 14, 2021Date of Patent: December 6, 2022Assignee: Cypress Semiconductor CorporationInventors: David Michael Rogers, Eric N. Mann, Eric Lee Swindlehurst, Toru Miyamae, Timothy John Williams, Ryuta Nagai, Sungkwon Lee, Ravindra M. Kapre, Mimi Xuefeng Zhao Qian, Yan Yi, Dung Si Ho, Boo Chin-Hua
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Patent number: 11349533Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.Type: GrantFiled: September 28, 2018Date of Patent: May 31, 2022Assignee: Apple Inc.Inventors: Srinivasa Yasasvy Sateesh Bhamidipati, Vineet Nayak, Wassim El-Hassan, Xuefeng Zhao
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Publication number: 20220045772Abstract: A radio frequency device includes antennas, transmitters, power detectors, a memory storing instructions and an antenna gain lookup table, and processors. The processors execute instructions that include instructing the transmitters to send transmission signals through the antennas to form a first beamformed signal having a first beam direction and a first frequency using multiple input powers. The instructions include determining radio frequency integrated circuit (RFIC) gains associated with the transmitters based on the transmission signals using the power detectors. Moreover, the instructions include determining the antenna gains for the antennas based on the first beam direction and the first frequency of the first beamformed signal, and the antenna gain lookup table. The instructions also include determining total gains based on the RFIC gains and the antenna gains, and adjusting the input powers based on the total gains and a back off power signal.Type: ApplicationFiled: October 8, 2020Publication date: February 10, 2022Inventors: Wassim El-Hassan, Gurusubrahmaniyan Subrahmaniyan Radhakrishnan, Srinivasa Yasasvy Sateesh Bhamidipati, Daphne Irene Gorman, Vineet Nayak, Xuefeng Zhao
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Patent number: 11012164Abstract: An electronic device has multiple transmitters to transmit multiple signals. The electronic device also has a receiver to receive a signal. Moreover, the electronic device has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to send a test transmission signal from a transmitter of the multiple of transmitters, receive the test transmission signal at the receiver, and determine a gain of the test transmission signal. In response to determining that the gain is within a threshold range of an initial gain, the instructions cause the processor to send an indication that the receiver is operating as expected.Type: GrantFiled: September 27, 2019Date of Patent: May 18, 2021Assignee: Apple Inc.Inventors: Wassim El-Hassan, Bassel Husam Alesh, Srinivasa Yasasvy Sateesh Bhamidipati, Daphne Irene Gorman, Vineet Nayak, Xuefeng Zhao, Xiaohui Gong
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Publication number: 20210099241Abstract: An electronic device has multiple transmitters to transmit multiple signals. The electronic device also has a receiver to receive a signal. Moreover, the electronic device has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to send a test transmission signal from a transmitter of the multiple of transmitters, receive the test transmission signal at the receiver, and determine a gain of the test transmission signal. In response to determining that the gain is within a threshold range of an initial gain, the instructions cause the processor to send an indication that the receiver is operating as expected.Type: ApplicationFiled: September 27, 2019Publication date: April 1, 2021Inventors: Wassim El-Hassan, Bassel Husam Alesh, Srinivasa Yasasvy Sateesh Bhamidipati, Daphne Irene Gorman, Vineet Nayak, Xuefeng Zhao, Xiaohui Gong
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Patent number: 10859660Abstract: A soft tissue simulator for magnetic resonance imaging and a method for simulated testing are disclosed. The simulator includes a base for supporting a soft tissue or organ sample, an indenter, a pneumatic cylinder and an air source. The pneumatic cylinder is separated into a first chamber and a second chamber. The air source includes a pneumatic generation source and a reversing valve having a first air outlet and a second air outlet which are respectively connected to the first and second chambers. The reversing valve is used to control compressed air to enter the first or second chamber to control the movement of the indenter. The indenter is controlled to have a periodic or unidirectional movement, to simulate the movement of a human organ or soft tissue. The simulator can used for the measurement of physical characteristics of soft tissue based on magnetic resonance imaging.Type: GrantFiled: April 18, 2017Date of Patent: December 8, 2020Assignee: SOOCHOW UNIVERSITYInventors: Chunhong Hu, Mo Zhu, Xuefeng Zhao, Long Huang, Yuan Feng
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Patent number: 10833750Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.Type: GrantFiled: September 28, 2018Date of Patent: November 10, 2020Assignee: Apple Inc.Inventors: Srinivasa Yasasvy Sateesh Bhamidipati, Vineet Nayak, Wassim El-Hassan, Xuefeng Zhao
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Publication number: 20200106493Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: Srinivasa Yasasvy Sateesh Bhamidipati, Vineet Nayak, Wassim El-Hassan, Xuefeng Zhao
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Publication number: 20200106506Abstract: Wireless network interfaces that are capable of transmitting and/or receiving beamformed radiofrequency (RF) signals may be assisted by the use of codebooks. Electronic devices with memory to store a database of codebooks may be used to increase the number of entries available for operation. The database of codebooks may employ environmental parameters to improve efficiency of the wireless network interface. Methods for calibration of electronic devices and/or adjustment and selection of codebooks based on the parameters are also described. The calibration may employ a testing chamber that measure powers at in a limited number of angles.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: Srinivasa Yasasvy Sateesh Bhamidipati, Vineet Nayak, Wassim El-Hassan, Xuefeng Zhao
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Publication number: 20190064304Abstract: The invention relates to a soft tissue simulator for magnetic resonance imaging and a method for simulated testing. The simulator includes a base for supporting a soft tissue or organ sample, an indenter, a pneumatic cylinder and an air source. The pneumatic cylinder is separated into a first chamber and a second chamber. The air source includes a pneumatic generation source and a reversing valve having a first air outlet and a second air outlet which are respectively connected to the first and second chambers. The reversing valve is used to control compressed air to enter the first or second chamber to control the movement of the indenter. The indenter is controlled to have a periodic or unidirectional movement, to simulate the movement of a human organ or soft tissue. The invention is applicable to simulation of measurement of physical characteristics of soft tissue based on magnetic resonance imaging.Type: ApplicationFiled: April 18, 2017Publication date: February 28, 2019Inventors: Chunhong HU, Mo ZHU, Xuefeng ZHAO, Long HUANG, Yuan FENG
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Publication number: 20170163877Abstract: Embodiments of the present disclosure disclose a method and electronic device for photo shooting in backlighting scene. The method includes: detecting real-time environmental parameters for photo shooting; performing backlighting scene identification according to the real-time environmental parameters; performing auxiliary processing of shooting for backlighting scene according to the identification result. The photo shooting method and electronic device for backlighting scene provided in embodiments of the present disclosure simplify the startup process of the auxiliary processing for backlighting scene.Type: ApplicationFiled: August 22, 2016Publication date: June 8, 2017Inventors: Xuefeng Zhao, Li Li
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Patent number: 9469549Abstract: A method for processing fluoride-containing wastewaters from a factory, which includes the following steps: Step 1: collecting the fluoride-containing wastewaters into three pools: an acidic high-fluoride wastewater, an acidic low-fluoride wastewater, and an alkaline wastewater; Step 2: adding a calcium compound to the acidic low-fluoride wastewater to produce a calcium-containing solution; Step 3: reacting a portion of the calcium-containing solution with the acidic high-fluoride wastewater at a calcium-to-fluoride molar ratio of from about 0.5:1 to about 1.Type: GrantFiled: December 6, 2013Date of Patent: October 18, 2016Assignee: Beijing Guohuan Tsinghua Environment Engineering Design & Research Institute Co., Ltd.Inventors: Cheng-Wen Wang, Yan Li, Hongxiang Fu, Xuefeng Zhao
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Patent number: 9369249Abstract: A terminal inter-application network resource allocation method comprises the following steps: a terminal determining, according to a set ratio, an allocation ratio of network bandwidth resources for network applications running at the foreground, and according to a statistical result, obtained by the terminal, of operational behavior performed by a user on each network application, determining an allocation ratio of unallocated network bandwidth resources for each network application; the terminal allocating network bandwidth resources to each network application according to the allocation ratio of the network bandwidth resources for each network application. According to the application, bandwidth allocation can be dynamically adjusted in real time according to user operations, so as to solve the problem that, when multiple applications are enabled, the data communication time of a current application increases because the network resources are occupied by other background applications.Type: GrantFiled: September 26, 2012Date of Patent: June 14, 2016Assignee: CHINA MOBILE COMMUNICATIONS CORPORATIONInventor: Xuefeng Zhao
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Publication number: 20140241299Abstract: A terminal inter-application network resource allocation method comprises the following steps: a terminal determining, according to a set ratio, an allocation ratio of network bandwidth resources for network applications running at the foreground, and according to a statistical result, obtained by the terminal, of operational behavior performed by a user on each network application, determining an allocation ratio of unallocated network bandwidth resources for each network application; the terminal allocating network bandwidth resources to each network application according to the allocation ratio of the network bandwidth resources for each network application. According to the application, bandwidth allocation can be dynamically adjusted in real time according to user operations, so as to solve the problem that, when multiple applications are enabled, the data communication time of a current application increases because the network resources are occupied by other background applications.Type: ApplicationFiled: September 26, 2012Publication date: August 28, 2014Applicant: CHINA MOBILE COMMUNICATIONS CORPORATIONInventor: Xuefeng Zhao