Patents by Inventor Chih-Yuan Liu

Chih-Yuan Liu 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).

  • Publication number: 20160164428
    Abstract: The present invention relates to power conversion systems, specifically, it relates to a device for detecting the DC voltage rectified from the AC power supply voltage in an AC-DC converter, primarily used to determine whether the DC input voltage is under a brown-out level and to monitor whether the AC power supply is removed and to discharge the residue DC voltage generated in a high frequency filter capacitor, which is used to filter high frequency noise signals of the AC power supply, during the removal of the AC power.
    Type: Application
    Filed: March 27, 2015
    Publication date: June 9, 2016
    Inventors: Yu-Ming Chen, Chih-Yuan Liu, Pei-Lun Huang
  • Publication number: 20160164430
    Abstract: A power conversion system and a method for voltage change detection, specifically, relates to a detection circuit implemented in the AC-DC power converter, detect the voltage change. The AC input voltage is rectified to convert into a DC input voltage transmitted to a detection unit generating a detection voltage signal at different logical states corresponding to the input voltage changes. A charge current source unit is used for charging the capacitor when the detection voltage signal is in a second state and a discharge current source unit is used for discharging the capacitor when the detection voltage signal is in a first state. A primary comparator compares the voltage changes of the capacitor in the alternating charge and discharge processes with a critical zero potential and outputs a detection signal identifying the changing trend of the input voltage.
    Type: Application
    Filed: March 27, 2015
    Publication date: June 9, 2016
    Inventors: Yu-Ming Chen, Chih-Yuan Liu, Pei-Lun Huang
  • Publication number: 20160079874
    Abstract: A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient.
    Type: Application
    Filed: December 7, 2014
    Publication date: March 17, 2016
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Publication number: 20160079877
    Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Application
    Filed: December 7, 2014
    Publication date: March 17, 2016
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Publication number: 20160079875
    Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Application
    Filed: December 7, 2014
    Publication date: March 17, 2016
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yueh-Ping Yu, Jung-Pei Cheng, Pei-Lun Huang
  • Publication number: 20160079876
    Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Application
    Filed: December 7, 2014
    Publication date: March 17, 2016
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Publication number: 20160079878
    Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Application
    Filed: December 7, 2014
    Publication date: March 17, 2016
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yueh-Ping Yu, Pei-Lun Huang
  • Publication number: 20150343321
    Abstract: An electronic device for presenting perceivable content(s) is provided. The electronic device includes a presentation unit, a control unit and an operating unit. The operating unit is electrically coupled to the control unit. According to the control of the control unit, the operating unit can present the perceivable content and communicate with an external electronic device.
    Type: Application
    Filed: December 29, 2014
    Publication date: December 3, 2015
    Inventors: Chih-Yuan Liu, Chien-Hong Lin, Tsung-Hsien Chen, Yu-Shen Li
  • Publication number: 20150265075
    Abstract: A snore suppression pillow includes a pillow body and at least one raising layer. The pillow body has a surface forming a high end and a low end. The high end includes a recessed portion formed in each of two sides of a middle portion thereof so that the middle portion is configured as a curved protrusion. The at least one raising layer is attachable to a bottom of the pillow body. As such, adjustment is achievable with the at least one raising layer to provide the pillow with a height suiting the need of a user and the protrusion of the pillow body allows the head of the user to turn aside to the left side or right side when the user is sleeping so as to stretch the respiratory tract to help prevent snoring caused by slackening of the respiratory tract.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 24, 2015
    Inventors: Chih-Yuan Liu, Wen-Chyuan Chen, Hsueh-Yu Li, Li-Ang Lee
  • Patent number: 8869205
    Abstract: A method and a system for video collection management are provided. The method and the system can gather related videos in a network, classify the videos into multiple channels and recommend the channels to be viewed by the user. The method and the system can check the videos of the channels periodically to determine whether the videos are valid or invalid and search for other videos to replace the invalid videos. The method and the system also provide continuous, cross-apparatus and cross-channel video replay.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: October 21, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Guan-Rong Lin, Shun-Min Hsu, Chih-Yuan Liu
  • Publication number: 20140223063
    Abstract: A USB SSIC removable electronic device includes a first receiving terminal pair, a first transmitting terminal pair, a MIPI/SSIC-PHY/Link layer, a function module, at least one power terminal and a ground terminal. The first receiving terminal pair receives data compatible with a USB SSIC interface. The first transmitting terminal pair transmits data compatible with the USB SSIC interface. The MIPI/SSIC-PHY/Link layer receives data compatible with the USB SSIC interface from the first receiving terminal pair, and transmits data compatible with the USB SSIC interface to the first transmitting terminal pair. The function module transmits data with the MIPI/SSIC-PHY/Link layer by the transmission protocol of the USB SSIC interface. The power terminal provides at least one source voltage for the MIPI/SSIC-PHY/Link layer and the function module.
    Type: Application
    Filed: December 30, 2013
    Publication date: August 7, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Chih-Yuan Liu, Yuan Heng Sun, Chien-Hong Lin
  • Patent number: 8687373
    Abstract: A card structure includes a first element and a second element. The first element includes a first peripheral portion and a plurality of first contact points exposed by the first peripheral portion. The second element includes a second peripheral portion and a plurality of second contact points corresponding to the first contact points of the first element and exposed by the second peripheral portion. When the first and second elements are joined with each other, the first peripheral portion of the first element and the second peripheral portion of the second element are adjacent to each other, to juxtapose the first contact points of the first element and the second contact points of the second element to each other. The juxtaposed first and second contact points of the first and second elements are coupled to each other by a welding portion.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: April 1, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Yuan Liu, Chien-Hong Lin, Yuan-Heng Sun
  • Publication number: 20140068676
    Abstract: A method and a system for video collection management are provided. The method and the system can gather related videos in a network, classify the videos into multiple channels and recommend the channels to be viewed by the user. The method and the system can check the videos of the channels periodically to determine whether the videos are valid or invalid and search for other videos to replace the invalid videos. The method and the system also provide continuous, cross-apparatus and cross-channel video replay.
    Type: Application
    Filed: April 15, 2013
    Publication date: March 6, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Guan-Rong Lin, Shun-Min Hsu, Chih-Yuan Liu
  • Publication number: 20140021802
    Abstract: A USB SSIC thin card device and a data transfer method thereof are provided. A first universal serial bus (USB) physical layer circuit is controlled by a USB device control unit to transmit data through a pair of first differential signal pins and a pair of a second differential signal pins, wherein the first USB physical layer circuit is used to transmit data complied with a USB 3.0 SSIC transmission specification.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventors: Chih-Yuan Liu, Yuan-Heng Sun, Chien-Hong Lin, Jing-Shan Liang
  • Patent number: 8461458
    Abstract: A card structure includes a first substrate, a second substrate, and a connector. The first substrate includes a base surface, wherein at least one electronic part region and a terminal region are disposed on the base surface. The second substrate is disposed on the base surface and is coupled to the terminal region of the first substrate. The connector is disposed on the base surface to juxtapose the second substrate. The connector includes a connecting surface, a contact unit, and a plurality of contact regions disposed on the connecting surface and coupled to the contact unit and the terminal region, such that the plurality of contact regions are coupled to the second substrate via the terminal region of the first substrate.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 11, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Yuan Liu, Chien-Hong Lin, Yuan-Heng Sun
  • Publication number: 20130071823
    Abstract: An exercise learning system including a sensing unit and a processing module is disclosed. The sensing unit includes at least one sensor used for being disposed on the body of a user. Each sensor further outputs a sensing data according to the exercise state of the user. The processing module generates at least one critical action data of the user according to the at least one sensing data. The processing module further synchronizes and compares the at least one critical action data with the corresponding at least one pre-produced action data.
    Type: Application
    Filed: January 4, 2012
    Publication date: March 21, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chung-Wei Lin, Chih-Yuan Liu, Lun-Chia Kuo, Kun-Chi Feng
  • Patent number: 8200227
    Abstract: A method for resuming data transmission in a data transmission system including multiple information processing units and at least one mobile device, the multiple information processing units and the mobile device each including a wireless communication component, the method includes: transmitting data, by a first one of the multiple information processing units, to the mobile device; recording a transmission status of the mobile device, the transmission status including information regarding an unfinished data transmission by the first information processing unit to the mobile device; and resuming transmitting data relating to the unfinished data transmission, by a second one of the multiple information processing units, to the mobile device based on the recorded transmission status.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: June 12, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Yuan Liu, Lun-Chia Kuo, Hui-Chun Lin
  • Patent number: 8123566
    Abstract: An electronic device, an adapter and a receptacle are provided. The electronic device includes a card body, a plurality of first and second terminals, and at least one stub. The card body has a front edge, a first surface and a second surface opposite to the first surface. The first terminals are between the first terminals and the front edge. The stub is disposed on the second surface and near the front edge. The adapter includes a body and a plurality of elastic terminals. The body has an accommodating portion for accommodating an electronic device. One ends of the elastic terminals are fixed to the body. When the electronic device is accommodated at the accommodating portion, a plurality of flat terminals of the electronic device are outside of the accommodating portion, and another ends of the elastic terminals are against the flat terminals correspondingly.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 28, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Yuan Liu, Chien-Hong Lin, Yi-Lun Wen, Gilbert Sun
  • Patent number: 8120340
    Abstract: In an interleaving power factor corrector, a control device interleavingly drives first and second converting circuits such that the power factor corrector generates a voltage output (Vo), and includes first and second control modules generating respectively first and second driving signals (Q_master, Q_slave) that correspond respectively to first and second control signals for controlling operations of power switches of the first and second converting circuits. A phase modulating module generates a reset signal (S_PTCL) based on an inverted first driving signal (Qn_master) and a feedback compensation signal (Vcomp) outputted by the first control module, and a reset signal (S_syn) outputted by the second control module. When one of the reset signals (S_syn, S_PTCL) has a predetermined level, the second driving signal (Q_slave) has a level for switching the power switch of the second converting circuit to an OFF-mode.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 21, 2012
    Assignee: National Taiwan University
    Inventors: Dan Chen, Chung-Ping Ku, Chih-Yuan Liu, Hsien-Yi Tsai
  • Publication number: 20120040623
    Abstract: An exemplary method for triggering a corresponding function of an electronic device and a system using the same are provided. The method includes detecting radio signals between a first electronic device and a second electronic device, generating a radio signal quality evaluation value according to the characteristic of the radio signals and setting the function triggering module to one of the working modes according to the radio signal quality evaluation value.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 16, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Yuan Liu, Kuo-Yu Chuang, Yi-Lun Wen