Patents by Inventor Chuan Yun

Chuan Yun 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: 11763071
    Abstract: Disclosed herein is a method for facilitating unifying of multiple regulatory documents.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: September 19, 2023
    Assignee: Catachi Co.
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Patent number: 11361567
    Abstract: Disclosed herein is a method for facilitating classification of portions of a regulatory document. Accordingly, the method may include receiving, using a communication device, the regulatory document from a device, converting, using a processing device, the regulatory document from a source format to a preferred format, analyzing, using the processing device, the regulatory document of the preferred format based on the converting, identifying, using the processing device, the portions of the regulatory document based on the analyzing, and classifying, using the processing device, the portions using a classifier model into classification codes based on the identifying. Further, the method may include generating, using the processing device, an annotated regulatory document based on the classifying. Further, the method may include transmitting, using the communication device, the annotated regulatory document to the device.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: June 14, 2022
    Assignee: Catachi Co.
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Publication number: 20210209294
    Abstract: Disclosed herein is a method for facilitating unifying of multiple regulatory documents.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Publication number: 20210209358
    Abstract: Disclosed herein is a method for facilitating classification of portions of a regulatory document using multiple classification codes.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Publication number: 20210209355
    Abstract: Disclosed herein is a method for facilitating classification of portions of a regulatory document. Accordingly, the method may include receiving, using a communication device, the regulatory document from a device, converting, using a processing device, the regulatory document from a source format to a preferred format, analyzing, using the processing device, the regulatory document of the preferred format based on the converting, identifying, using the processing device, the portions of the regulatory document based on the analyzing, and classifying, using the processing device, the portions using a classifier model into classification codes based on the identifying. Further, the method may include generating, using the processing device, an annotated regulatory document based on the classifying. Further, the method may include transmitting, using the communication device, the annotated regulatory document to the device.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Publication number: 20210209357
    Abstract: Disclosed herein is a method for facilitating determination of differences between a pair of regulatory documents. Accordingly, the method may include receiving a first regulatory document and a second regulatory document from a device, converting the first regulatory document and the second regulatory document from a source format to a preferred format, analyzing the first regulatory document and the second regulatory document of the preferred format, identifying first portions of the first regulatory document and second portions of the second regulatory document, classifying the first portions into first classification codes and the second portions into second classification codes, comparing the first classification codes with the second classification codes, determining a change associated with a first portion of the first portions, associating the change to the first portion, generating a combined annotated regulatory document, and transmitting the combined annotated regulatory document to the device.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Kayvan Alikhani, Chuan Yun, Mohit Mohan Galvankar, Mohsen Emaminouri
  • Patent number: 9484838
    Abstract: An inverter and a power supply method thereof and an application thereof are provided. The inverter includes a DC-DC conversion circuit, an inverting circuit and an auxiliary power circuit. The DC-DC conversion circuit converts a DC input voltage into a DC bus voltage. The inverting circuit is configured to convert the DC bus voltage into an AC output voltage. The auxiliary power circuit is enabled in response to the DC input voltage, and the auxiliary power circuit generates a first auxiliary power for enabling the DC-DC conversion circuit after being enabled. The DC-DC conversion circuit is enabled in response to the first auxiliary power, and the DC-DC conversion circuit generates a second auxiliary power for enabling the inverting circuit after being enabled, such that the inverting circuit is enabled in response to the second auxiliary power and generates the AC output voltage.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: November 1, 2016
    Assignees: FSP-Powerland Technology Inc., FSP TECHNOLOGY INC.
    Inventors: Jian-Guo Mu, Feng Ji, Xiong Fang, Chuan-Yun Wang, Ming Xu
  • Patent number: 9455622
    Abstract: An inverter and an over current protection method thereof are provided. The inverter includes an inverting circuit, a filtering capacitor and an over current protection circuit. The inverting circuit is configured to convert a DC input voltage into an AC output voltage and provide the AC output voltage to a load. The filtering capacitor is coupled to the inverting circuit and the load in parallel. The over current protection circuit is coupled to the inverting circuit and the filtering capacitor and configured to provide an over current protection mechanism. The over current protection circuit detects an AC current on the filtering capacitor and determines whether to enable the over current protection mechanism according to the AC current in order to restrain the power conversion operation of the inverting circuit.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: September 27, 2016
    Assignees: FSP-Powerland Technology Inc., FSP TECHNOLOGY INC.
    Inventors: Chuan-Yun Wang, Ming Xu, Jian-Guo Mu
  • Patent number: 9318949
    Abstract: An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 19, 2016
    Assignees: FSP TECHNOLOGY INC., FSP-Powerland Technology Inc.
    Inventors: Lin-Lin Gu, Chuan-Yun Wang, Ming Xu, Ju-Lu Sun
  • Patent number: 9287803
    Abstract: An inverter and a direct current (DC) bus voltage regulating method thereof are provided. The inverter includes a resonant conversion circuit, an inverting circuit, a first control circuit and a second control circuit. The resonant conversion circuit receives a DC input voltage and converts the same into a DC bus voltage. The inverting circuit couples to the resonant conversion circuit, and configured to convert the DC bus voltage into an AC output voltage. The first control circuit is configured to control operations of the resonant conversion circuit, where the first control circuit calculates a best working voltage of the resonant conversion circuit based on the DC input voltage and a resonant frequency of the resonant conversion circuit. The second control circuit controls operations of the inverting circuit, where the second control circuit receives the best working voltage calculated by the first control circuit and regulates the DC bus voltage accordingly.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: March 15, 2016
    Assignees: FSP-Powerland Technology Inc., FSP TECHNOLOGY INC.
    Inventors: Jian-Guo Mu, Chuan-Yun Wang, Ming Xu
  • Publication number: 20150070956
    Abstract: An inverter and a direct current (DC) bus voltage regulating method thereof are provided. The inverter includes a resonant conversion circuit, an inverting circuit, a first control circuit and a second control circuit. The resonant conversion circuit receives a DC input voltage and converts the same into a DC bus voltage. The inverting circuit couples to the resonant conversion circuit, and configured to convert the DC bus voltage into an AC output voltage. The first control circuit is configured to control operations of the resonant conversion circuit, where the first control circuit calculates a best working voltage of the resonant conversion circuit based on the DC input voltage and a resonant frequency of the resonant conversion circuit. The second control circuit controls operations of the inverting circuit, where the second control circuit receives the best working voltage calculated by the first control circuit and regulates the DC bus voltage accordingly.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 12, 2015
    Inventors: Jian-Guo Mu, Chuan-Yun Wang, Ming Xu
  • Publication number: 20150049525
    Abstract: An inverter and a power supply method thereof and an application thereof are provided. The inverter includes a DC-DC conversion circuit, an inverting circuit and an auxiliary power circuit. The DC-DC conversion circuit converts a DC input voltage into a DC bus voltage. The inverting circuit is configured to convert the DC bus voltage into an AC output voltage. The auxiliary power circuit is enabled in response to the DC input voltage, and the auxiliary power circuit generates a first auxiliary power for enabling the DC-DC conversion circuit after being enabled. The DC-DC conversion circuit is enabled in response to the first auxiliary power, and the DC-DC conversion circuit generates a second auxiliary power for enabling the inverting circuit after being enabled, such that the inverting circuit is enabled in response to the second auxiliary power and generates the AC output voltage.
    Type: Application
    Filed: July 14, 2014
    Publication date: February 19, 2015
    Inventors: Jian-Guo Mu, Feng Ji, Xiong Fang, Chuan-Yun Wang, Ming Xu
  • Patent number: 8958219
    Abstract: A non-isolated inverter including a DC input-side, a capacitor connected in parallel with the DC input-side, an AC output-side connected in parallel with a load, and first and second bridge-arm units is provided. The first and second bridge-arm units are connected in parallel with the capacitor. The first bridge-arm unit includes a series forward-connection of upper and lower switch-elements, where a common-node of upper and lower switch-elements and a supplying terminal of the second bridge-arm unit are respectively connected to two terminals of the AC output-side. The upper and lower switch-elements are respectively turned on in positive and negative half cycles of an output current of the non-isolated inverter, and the generation of common-mode currents in the non-isolated inverter is suppressed under a clamping action between the upper and lower switch-elements due to there are no high-frequency voltages on the parasitic-capacitors from the non-isolated inverter to the ground.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 17, 2015
    Assignees: FSP Technology Inc., FSP-Powerland Technology Inc.
    Inventors: Ming Xu, Chuan-Yun Wang
  • Publication number: 20150036397
    Abstract: An inverter and an over current protection method thereof are provided. The inverter includes an inverting circuit, a filtering capacitor and an over current protection circuit. The inverting circuit is configured to convert a DC input voltage into an AC output voltage and provide the AC output voltage to a load. The filtering capacitor is coupled to the inverting circuit and the load in parallel. The over current protection circuit is coupled to the inverting circuit and the filtering capacitor and configured to provide an over current protection mechanism. The over current protection circuit detects an AC current on the filtering capacitor and determines whether to enable the over current protection mechanism according to the AC current in order to restrain the power conversion operation of the inverting circuit.
    Type: Application
    Filed: July 4, 2014
    Publication date: February 5, 2015
    Inventors: Chuan-Yun Wang, Ming Xu, Jian-Guo Mu
  • Publication number: 20130077370
    Abstract: An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 28, 2013
    Inventors: Lin-Lin Gu, Chuan-Yun Wang, Ming Xu, Ju-Lu Sun
  • Publication number: 20130070504
    Abstract: A non-isolated inverter including a DC input-side, a capacitor connected in parallel with the DC input-side, an AC output-side connected in parallel with a load, and first and second bridge-arm units is provided. The first and second bridge-arm units are connected in parallel with the capacitor. The first bridge-arm unit includes a series forward-connection of upper and lower switch-elements, where a common-node of upper and lower switch-elements and a supplying terminal of the second bridge-arm unit are respectively connected to two terminals of the AC output-side. The upper and lower switch-elements are respectively turned on in positive and negative half cycles of an output current of the non-isolated inverter, and the generation of common-mode currents in the non-isolated inverter is suppressed under a clamping action between the upper and lower switch-elements due to there are no high-frequency voltages on the parasitic-capacitors from the non-isolated inverter to the ground.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicants: FSP-POWERLAND TECHNOLOGY INC., FSP TECHNOLOGY INC.
    Inventors: Ming Xu, Chuan-Yun Wang
  • Patent number: 8200194
    Abstract: The disclosure provides a Femtocell network system coexistent with a universal mobile telecommunication system (UMTS) network and the deadzone effect alleviating method thereof. For each femto access point (FAP) in the Femtocell network system, a minimum transmission power is pre-configured. When an inadmissible user equipment (UE) performs a location update or a handoff process to obtain the access right to a closed FAP, at least a FAP gateway may estimate the probable existence of deadzone via the UE location update or handoff procedure. Before the inadmissible UE reaches the deadzone of the closed FAP, the transmission power of the closed FAP is decreased repeatedly to allow the inadmissible UE to receive the signals and messages from the UMTS network, until the closed FAP reaches a threshold of its minimum transmission power.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 12, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chuan-Yun Wang, Ching-Wen Cheng
  • Publication number: 20120014144
    Abstract: A power supplying apparatus includes a rectifier and a first electromagnetic interference (EMI) filter. The rectifier receives and rectifies an alternating current (AC) input power for generating a direct current (DC) power. The first EMI filter receives the DC power through a first power input terminal and a first reference input terminal thereof. The first EMI filter filters the DC power for generating a DC output power between a first power output terminal and a first reference output terminal thereof. The first EMI filter includes an inductor module, a first X capacitor, and a first Y capacitor.
    Type: Application
    Filed: January 14, 2011
    Publication date: January 19, 2012
    Inventors: Ming Xu, Chuan-Yun Wang, Chih-Chung Chen
  • Publication number: 20100267365
    Abstract: The disclosure provides a Femtocell network system coexistent with a universal mobile telecommunication system (UMTS) network and the deadzone effect alleviating method thereof. For each femto access point (FAP) in the Femtocell network system, a minimum transmission power is pre-configured. When an inadmissible user equipment (UE) performs a location update or a handoff process to obtain the access right to a closed FAP, at least a FAP gateway may estimate the probable existence of deadzone via the UE location update or handoff procedure. Before the inadmissible UE reaches the deadzone of the closed FAP, the transmission power of the closed FAP is decreased repeatedly to allow the inadmissible UE to receive the signals and messages from the UMTS network, until the closed FAP reaches a threshold of its minimum transmission power.
    Type: Application
    Filed: July 31, 2009
    Publication date: October 21, 2010
    Inventors: Chuan-Yun Wang, Ching-Wen Cheng