Patents by Inventor Kai Wei
Kai 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).
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Publication number: 20240380696Abstract: Some embodiments provide a network system. The network system includes a first set of host machines for hosting virtual machines that connect to each other through a logical network. The first set of host machines includes managed forwarding elements for forwarding data between the host machines. The network system includes a second set of host machines for hosting virtualized containers that operate as gateways for forwarding data between the virtual machines and an external network. At least one of the virtualized containers peers with at least one physical router in the external network in order to advertise addresses of the virtual machines to the physical router.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Inventors: Ariel Tubaltsev, Ronghua Zhang, Benjamin C. Basler, Serge Maskalik, Rajiv Ramanathan, David J. Leroy, Srinivas Neginhal, Kai-Wei Fan, Ansis Atteka
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Patent number: 12112808Abstract: A read voltage calibration method, a memory storage device, and a memory control circuit unit are provided. The read voltage calibration method includes: reading data from a first physical unit by using multiple read voltage levels; decoding the data to obtain multiple error evaluation parameters; determining a first vector distance parameter according to a first error evaluation parameter; determining multiple candidate read voltage levels according to the first vector distance parameter and a first read voltage level; determining a target read voltage level according to one of the candidate read voltage levels; and reading the data again from the first physical unit by using the target read voltage level.Type: GrantFiled: March 7, 2023Date of Patent: October 8, 2024Assignee: PHISON ELECTRONICS CORP.Inventors: Szu-Wei Chen, An-Cin Li, Yu-Hung Lin, Kai-Wei Tsou
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Publication number: 20240331686Abstract: Techniques for determining and storing relevant context information for a user input, such as a spoken input, are described. In some embodiments, context information is determined to be relevant on an audio frame basis. Context scores for different types of context data (e.g., prior dialog turn data, user profile data, device information, etc.) are determined for individual audio frames corresponding to a spoken input. Based on the corresponding context scores, the most relevant context is stored in a local context cache. The local context cache is updated as subsequent audio frames, of the user input, are processed. The data stored in the context cache is provided to downstream components to perform tasks such as ASR, NLU and SLU.Type: ApplicationFiled: June 11, 2024Publication date: October 3, 2024Inventors: Kai Wei, Thanh Dac Tran, Grant Strimel
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Publication number: 20240322729Abstract: A motor driver is provided. The motor driver includes an AC/DC converter, a DC/AC converter, a heat dissipation plate and a busbar module. The AC/DC converter converts an AC input power to a DC power and includes a first thermal module, a second thermal module, a first capacitor pack and a second capacitor pack. The DC/AC converter is connected with the AC/DC converter, converts the DC power to an AC output power, and includes a third thermal module. The heat dissipation plate includes an upper surface and a lower surface. The first thermal module is disposed on the upper surface. The second thermal module and the third thermal module are disposed on two opposite surfaces, respectively. The first capacitor pack is disposed on the upper surface. The second capacitor pack is disposed on the lower surface and corresponding to the first capacitor pack.Type: ApplicationFiled: January 3, 2024Publication date: September 26, 2024Inventors: Kai-Wei Hu, Yi-Jui Chen, Chih-Hung Chen, Lei-Chung Hsing
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Patent number: 12083210Abstract: A translucent hair care composition comprising a substituted 2-pyridinol-N-oxide material, a cationic surfactant, a fatty alcohol, a water-soluble polymer, water, and a monocarboxylic acid.Type: GrantFiled: June 13, 2022Date of Patent: September 10, 2024Assignee: The Procter & Gamble CompanyInventors: Toshiyuki Iwata, Supriya Punyani, Kai Wei Kelvin Lee, Junji Hamano
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Patent number: 12077667Abstract: A resin composition includes resin and inorganic filler. The resin includes CE resin and BMI resin, and a purity of the inorganic filler is at least greater than 99%.Type: GrantFiled: July 21, 2022Date of Patent: September 3, 2024Assignee: NAN YA PLASTICS CORPORATIONInventors: Te-Chao Liao, Chien Kai Wei, Hung-Yi Chang
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Publication number: 20240267001Abstract: In absence of electrical approaches for realization of highly stable RF oscillator, opto-electronic oscillators (OEO) techniques are provided, where self-forced oscillation techniques using long optical delays demonstrate significant short-term and long-term frequency stability. Fully integrated opto-electronic oscillator chip (IOEC) may be the most efficient realization of an RF frequency synthesizer in terms of operation frequency (covering microwave and millimeter wave), size (<10 cm3), ruggedness to environmental effects of temperature (?40 to 80C), vibration (up to 40g), low timing jitter (<5fs for 40 GHz carrier), and wall-plug efficiency (output power >10 dBm from under 1 W power). A free-running III-V (primarily InP) based multi-mode laser (MML) diodes is designed with large mode number (e.g., over 60 modes) and intermodal oscillation frequency compatible with desired RF carrier signal (e.g., 1-40 GHz).Type: ApplicationFiled: June 10, 2022Publication date: August 8, 2024Applicant: Drexel UniversityInventors: Afshin S. Daryoush, Kai Wei
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Publication number: 20240255344Abstract: An optical detector module can be used to implement proximity sensing function by detecting ambient light outside of the optical detector module in accordance with a first detection threshold. An optical detector module can be further used to implement other active functions such as material detection (e.g., skin) or depth-sensing by emitting one or more optical signals (e.g., light pulses at a specific wavelength) and detecting the reflected optical signals relative to a second and/or third detection threshold. The disclosure provides technical solutions for actively monitoring detection threshold(s) of an optical detector module to achieve better power management. In some embodiments, such solutions are useful for photodetectors having a wide sensing bandwidth, such as a photodetector formed in germanium or a photodetector comprising an absorption region comprising germanium.Type: ApplicationFiled: April 8, 2024Publication date: August 1, 2024Inventors: Kai-Wei Chiu, Chih-Wei Chen, Chih-Wei Yeh
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Patent number: 12051982Abstract: A method of clamping an output current of a three-phase power converter is provided. The three-phase power converter includes three switching bridge arms and provides a three-phase output voltage command, and each switching bridge arm has an upper switch and a lower switch connected in series. The method includes steps of: determining that the output current is greater than a first current threshold to activate a current clamping control procedure, comparing a carrier signal with the three-phase output voltage command to turn on the lower switches by a first zero vector when the carrier signal is rising and turn on the upper switches by a second zero vector when the carrier signal is falling, determining that the output current is greater than a second current threshold to activate an overcurrent protection procedure, wherein the second current threshold is greater than the first current threshold.Type: GrantFiled: October 7, 2022Date of Patent: July 30, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Kai-Wei Hu, Ping-Heng Wu, Lei-Chung Hsing
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Publication number: 20240249778Abstract: A read voltage calibration method, a memory storage device, and a memory control circuit unit are provided. The read voltage calibration method includes: reading data from a first physical unit by using multiple read voltage levels; decoding the data to obtain multiple error evaluation parameters; determining a first vector distance parameter according to a first error evaluation parameter; determining multiple candidate read voltage levels according to the first vector distance parameter and a first read voltage level; determining a target read voltage level according to one of the candidate read voltage levels; and reading the data again from the first physical unit by using the target read voltage level.Type: ApplicationFiled: March 7, 2023Publication date: July 25, 2024Applicant: PHISON ELECTRONICS CORP.Inventors: Szu-Wei Chen, An-Cin Li, Yu-Hung Lin, Kai-Wei Tsou
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Patent number: 12047286Abstract: Some embodiments provide a network system. The network system includes a first set of host machines for hosting virtual machines that connect to each other through a logical network. The first set of host machines includes managed forwarding elements for forwarding data between the host machines. The network system includes a second set of host machines for hosting virtualized containers that operate as gateways for forwarding data between the virtual machines and an external network. At least one of the virtualized containers peers with at least one physical router in the external network in order to advertise addresses of the virtual machines to the physical router.Type: GrantFiled: May 4, 2021Date of Patent: July 23, 2024Assignee: Nicira, Inc.Inventors: Ariel Tubaltsev, Ronghua Zhang, Benjamin C. Basler, Serge Maskalik, Rajiv Ramanathan, David J. Leroy, Srinivas Neginhal, Kai-Wei Fan, Ansis Atteka
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Publication number: 20240227358Abstract: A thermally conductive board includes a first metal layer, a second metal layer, and a thermally conductive layer. The material of the first metal layer includes copper, and the first metal layer has a first top surface and a first bottom surface opposite to the first top surface. A first metal coating layer covers the first bottom surface. The material of the second metal layer includes copper, and the second metal layer has a second top surface and a second bottom surface opposite to the second top surface. A second metal coating layer covers the second top surface and faces the first metal coating layer. The thermally conductive layer is an electrically insulator laminated between the first metal coating layer and the second metal coating layer.Type: ApplicationFiled: May 4, 2023Publication date: July 11, 2024Inventors: KAI-WEI LO, WEN-FENG LEE, HSIANG-YUN YANG, KUO-HSUN CHEN
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Publication number: 20240234946Abstract: A high thermal-stability separator and method for manufacturing thereof are disclosed. The high thermal-stability separator comprises a porous film and a titanium oxide or/and titanium hydroxide film, wherein the porous film comprises a porous substrate and a inorganic layer, wherein the inorganic layer comprises a plurality of inorganic particles and a binder, the inorganic layer is formed on at least one surface of the porous substrate, and the porous substrate and the inorganic layer have a plurality of interconnected porous structures; and the titanium oxide or/and titanium hydroxide film is formed on the surface and the inner walls of porous structures of the porous film. The present high thermal-stability separator can provide enhanced compression retention and excellent high temperature melt integrity, and maintain a satisfied air permeability (Gurley) after compression.Type: ApplicationFiled: September 28, 2023Publication date: July 11, 2024Applicant: BenQ Materials CorporationInventors: WEI-TING YEH, WAN-TING LO, YI-TING LO, KAI-WEI CHENG, YI-FANG HUANG
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Patent number: 12033618Abstract: Techniques for determining and storing relevant context information for a user input, such as a spoken input, are described. In some embodiments, context information is determined to be relevant on an audio frame basis. Context scores for different types of context data (e.g., prior dialog turn data, user profile data, device information, etc.) are determined for individual audio frames corresponding to a spoken input. Based on the corresponding context scores, the most relevant context is stored in a local context cache. The local context cache is updated as subsequent audio frames, of the user input, are processed. The data stored in the context cache is provided to downstream components to perform tasks such as ASR, NLU and SLU.Type: GrantFiled: December 9, 2021Date of Patent: July 9, 2024Assignee: Amazon Technologies, Inc.Inventors: Kai Wei, Thanh Dac Tran, Grant Strimel
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Patent number: 12023893Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.Type: GrantFiled: October 28, 2021Date of Patent: July 2, 2024Assignee: TCLAD TECHNOLOGY CORPORATIONInventors: Feng-Chun Yu, Kai-Wei Lo, Wen Feng Lee, Ru-Yi Cai
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Publication number: 20240172347Abstract: A lighting device includes a driver, a first light string, a second light string, a constant current controller and a pulse width modulation controller. The driver is configured to provide a DC driving current to a shunt node. The first light string is electrically coupled between the shunt node and a ground terminal, and the first light string is driven by a first pulsating direct current. The second light string and the constant current controller are electrically coupled in series between the shunt node and the ground terminal. The pulse width modulation controller is configured to provide a pulse signal to the constant current controller, and the constant current controller controls a pulse frequency of a second pulsating direct current supplied for the second light string according to the pulse signal.Type: ApplicationFiled: November 16, 2023Publication date: May 23, 2024Inventors: Chih-Hsien Wang, Kuan-Hsien Tu, Kai-Wei Chen, Ming-Chieh Cheng
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Patent number: 11989823Abstract: The invention discloses a method for rendering on the basis of hemispherical orthogonal function, the method comprising the following steps: selecting rendering fragments and establishing a local coordinate system; acquiring a bidirectional reflectance distribution function of a material; if global illumination is an orthogonal function, determining a rotation matrix of an orthogonal function coefficient according to the rotation angles of the global coordinate system and the local coordinate system, and calculating a local orthogonal function illumination coefficient; converting the local orthogonal function illumination coefficient into a hemispherical orthogonal function illumination coefficient; sampling to obtain the spatial distribution of a bidirectional reflection distribution function of a rendered material; obtaining a hemispherical orthogonal function of the bidirectional reflection distribution function of the rendered material; and using the dot product of a hemispherical orthogonal function coefType: GrantFiled: September 14, 2020Date of Patent: May 21, 2024Assignee: NANJING INSTITUTE OF ASTRONOMICAL OPTICS & TECHNOLOGY, NATIONAL ASTRONOMICAL OBSERVATORIES, CASInventors: Yi Zheng, Kai Wei, Bin Liang, Ying Li, Changpeng Ding
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Publication number: 20240156410Abstract: Methods for determining a signal quality index for bioinformation measurement are disclosed herein. The method can include detecting a light intensity when the transmitter module is in an off state. The method can include comparing the light intensity to a first threshold. The method can include decreasing the gain of the receiver module when the light intensity is greater than the first threshold. The method can include comparing the light intensity to a second threshold when the light intensity is less than the first threshold. The method can include decreasing the gain of the receiver module when the light intensity is greater than the second threshold. The method can include comparing the light intensity to a third threshold when the light intensity is less than the second threshold. The method can include increasing the gain of the receiver module when the light intensity is less than the third threshold.Type: ApplicationFiled: September 15, 2023Publication date: May 16, 2024Inventors: Kai-Wei Chiu, Chun-Wei Chang, Jui-Wei Tsai, Shih-Jie Wu
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Publication number: 20240148262Abstract: Apparatuses and methods for calculating heart rate are disclosed herein. The apparatus can include a processor configured to calculate heart rate information. The processor includes a heart rate calculator including a memory configured to store a PPG signal and a calculation element coupled to the memory and configured to calculate a heart rate value and generate at least one quality checking factor according to the PPG signal. The processor also includes a checking element configured to determine a validity indicator according to the at least one quality checking factor, a memory control element coupled to the memory and configured to access the memory to transmit the PPG signal, and a multiplexer configured to output the PPG signal accessed by the memory control element or the heart rate value calculated by the calculation element according to the validity indicator.Type: ApplicationFiled: August 26, 2023Publication date: May 9, 2024Inventors: Jui-Wei Tsai, Kai-Wei Chiu, Chih-Wei Yeh
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Patent number: 11976965Abstract: An optical detector module can be used to implement proximity sensing function by detecting ambient light outside of the optical detector module in accordance with a first detection threshold. An optical detector module can be further used to implement other active functions such as material detection (e.g., skin) or depth-sensing by emitting one or more optical signals (e.g., light pulses at a specific wavelength) and detecting the reflected optical signals relative to a second and/or third detection threshold. The disclosure provides technical solutions for actively monitoring detection threshold(s) of an optical detector module to achieve better power management. In some embodiments, such solutions are useful for photodetectors having a wide sensing bandwidth, such as a photodetector formed in germanium or a photodetector comprising an absorption region comprising germanium.Type: GrantFiled: April 27, 2022Date of Patent: May 7, 2024Assignee: Artilux, Inc.Inventors: Kai-Wei Chiu, Chih-Wei Chen, Chih-Wei Yeh