Patents by Inventor Jia-Wei Liu

Jia-Wei 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).

  • Patent number: 9344141
    Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 17, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Ming Chen, Jia-Wei Liu, Ming-Chien Tseng, Shi-Yang Chen
  • Publication number: 20150270721
    Abstract: A wireless power transmission device includes a power transmitter, a first transmission unit, a power receiver, a feedback regulator, a receive controller, and a second transmission unit. The power transmitter is for generating power, and the first transmission unit is for wirelessly transmitting power generated by the power transmitter. The power receiver is for receiving and rectifying the power from the first transmission unit. The feedback regulator is for receiving a feedback signal from the power receiver to generate an AC control signal. The receive controller is for receiving the control signal to generate a driving signal. The second transmission unit is for wirelessly transmitting the control signal to the receive controller.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 24, 2015
    Inventors: Huang-Ti Lin, Yueh-Han Li, Tsung-Shiun Lee, Jia-Wei Liu
  • Patent number: 9125280
    Abstract: A display device with wireless power supply from power transmission means is disclosed in the disclosure. The display device comprises a display module, a system controlling module and a wireless power receiving module. The system controlling module is electrically connected to the display module. The wireless power receiving module is electrically connected to the system controlling module. The wireless power receiving module comprises a plurality of near-field coil units. The near-field coil units have individual receiving frequencies and individual output powers. The near-field coil units are configured to resonate with a transmission coil of the power transmission means. According to a transmission frequency on the transmission coil, the near-field coil unit with corresponding receiving frequency generates an electricity supply with a certain output power to the system controlling module. In addition, a wireless power transmission system is also disclosed herein.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 1, 2015
    Assignee: AU Optronics Corporation
    Inventors: Tsung-Shiun Lee, Jia-Wei Liu, Huang-Ti Lin, Yueh-Han Li
  • Patent number: 9071126
    Abstract: A wireless power transmission device includes a power transmitter, a first transmission unit, a power receiver, a feedback regulator, a receive controller, and a second transmission unit. The power transmitter is for generating power, and the first transmission unit is for wirelessly transmitting power generated by the power transmitter. The power receiver is for receiving and rectifying the power from the first transmission unit. The feedback regulator is for receiving a feedback signal from the power receiver to generate an AC control signal. The receive controller is for receiving the control signal to generate a driving signal. The second transmission unit is for wirelessly transmitting the control signal to the receive controller.
    Type: Grant
    Filed: January 27, 2013
    Date of Patent: June 30, 2015
    Assignee: AU Optronics Corp.
    Inventors: Huang-Ti Lin, Yueh-Han Li, Tsung-Shiun Lee, Jia-Wei Liu
  • Patent number: 9030457
    Abstract: A display with wireless power charging function, an operation method thereof and a corresponding portable electronic apparatus are provided. The display includes a RFID read/write module and is applicable to electrically charge a portable electronic apparatus with a RFID tag. The operation method includes steps of: displaying an image on the display surface of the display panel of the display; transmitting data between the Radio Frequency Identification read/write module of the display and the Radio Frequency Identification tag of the portable electronic apparatus and electrically charging the energy storage unit of the portable electronic apparatus while the portable electronic apparatus is placed in the readable/writable area; and adjusting, while the portable electronic apparatus is placed in the readable/writable area, the image to an updated image having no overlap with the readable/writable area if the image has an overlap with the readable/writable area.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: May 12, 2015
    Assignee: AU Optronics Corp.
    Inventors: Jia-Wei Liu, Yueh-Han Li
  • Publication number: 20150003339
    Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.
    Type: Application
    Filed: December 30, 2013
    Publication date: January 1, 2015
    Applicant: Industrial Technology Research Institute
    Inventors: Jia-Ming Chen, Jia-Wei Liu, Ming-Chien Tseng, Shi-Yang Chen
  • Publication number: 20140117869
    Abstract: A display device with wireless power supply from power transmission means is disclosed in the disclosure. The display device comprises a display module, a system controlling module and a wireless power receiving module. The system controlling module is electrically connected to the display module. The wireless power receiving module is electrically connected to the system controlling module. The wireless power receiving module comprises a plurality of near-field coil units. The near-field coil units have individual receiving frequencies and individual output powers. The near-field coil units are configured to resonate with a transmission coil of the power transmission means. According to a transmission frequency on the transmission coil, the near-field coil unit with corresponding receiving frequency generates an electricity supply with a certain output power to the system controlling module. In addition, a wireless power transmission system is also disclosed herein.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 1, 2014
    Inventors: Tsung-Shiun LEE, Jia-Wei LIU, Huang-Ti LIN, Yueh-Han LI
  • Publication number: 20140092659
    Abstract: A wireless power transmission device includes a power transmitter, a first transmission unit, a power receiver, a feedback regulator, a receive controller, and a second transmission unit. The power transmitter is for generating power, and the first transmission unit is for wirelessly transmitting power generated by the power transmitter. The power receiver is for receiving and rectifying the power from the first transmission unit. The feedback regulator is for receiving a feedback signal from the power receiver to generate an AC control signal. The receive controller is for receiving the control signal to generate a driving signal. The second transmission unit is for wirelessly transmitting the control signal to the receive controller.
    Type: Application
    Filed: January 27, 2013
    Publication date: April 3, 2014
    Applicant: AU Optronics Corp.
    Inventors: Huang-Ti Lin, Yueh-Han Li, Tsung-Shiun Lee, Jia-Wei Liu
  • Patent number: 8681852
    Abstract: Communication methods and communication devices are disclosed.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: March 25, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chuan-Yuan Huang, Jia-Wei Liu, Chorng-Ren Sheu
  • Publication number: 20130328849
    Abstract: A display with wireless power charging function, an operation method thereof and a corresponding portable electronic apparatus are provided. The display includes a RFID read/write module and is applicable to electrically charge a portable electronic apparatus with a RFID tag. The operation method includes steps of: displaying an image on the display surface of the display panel of the display; transmitting data between the Radio Frequency Identification read/write module of the display and the Radio Frequency Identification tag of the portable electronic apparatus and electrically charging the energy storage unit of the portable electronic apparatus while the portable electronic apparatus is placed in the readable/writable area; and adjusting, while the portable electronic apparatus is placed in the readable/writable area, the image to an updated image having no overlap with the readable/writable area if the image has an overlap with the readable/writable area.
    Type: Application
    Filed: February 4, 2013
    Publication date: December 12, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Jia-Wei LIU, Yueh-Han LI
  • Patent number: 8254510
    Abstract: A method for inter-carrier interference cancellation is provided. A time-domain received signal is detected to obtain information of an inter-symbol interference free region. Multiple cyclic useful symbols are obtained from the time-domain received signal according to the information of the inter-symbol interference free region and a set of multi-step windowing coefficients is generated. Adjusted cyclic useful symbols are obtained by multiplying the cyclic useful symbols by the set of multi-step windowing coefficients, respectively, and then combined in a time domain to obtain a time-domain combination signal. The inter-carrier interference of each of sub-carriers of the time-domain combination signal is centralized on neighboring D sub-carriers. The time-domain combination signal is transformed into a frequency-domain received signal. The frequency-domain received signal and its corresponding channel response matrix are divided into overlapped signal blocks according to D.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 28, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Wei Liu, Chorng-Ren Sheu, Ming-Chien Tseng
  • Patent number: 8243862
    Abstract: A signal receiving method of a receiver includes following steps. Multiple time-domain received signals are transformed into multiple frequency-domain received signals, and channel response matrices corresponding to the frequency-domain received signals are estimated. The frequency-domain received signals are STBC decoded and multiple original combination signals are obtained based on the corresponding channel response matrices. The frequency-domain received signals are rearranged, and the rearranged frequency-domain received signals are STBC decoded and multiple rearrangement combination signals are obtained based on the corresponding channel response matrices. The original combination signals and the rearrangement combination signals are randomly chosen and summed to obtain multiple complex signals. The complex signal with minimum interference power is selected and then the selected signal is used to cancel interference and compensate the channel effect to obtain the detected data.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 14, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Jia-Wei Liu, Chorng-Ren Sheu, Chuan-Yuan Huang
  • Publication number: 20120121002
    Abstract: A signal receiving method of a receiver includes following steps. Multiple time-domain received signals are transformed into multiple frequency-domain received signals, and channel response matrices corresponding to the frequency-domain received signals are estimated. The frequency-domain received signals are STBC decoded and multiple original combination signals are obtained based on the corresponding channel response matrices. The frequency-domain received signals are rearranged, and the rearranged frequency-domain received signals are STBC decoded and multiple rearrangement combination signals are obtained based on the corresponding channel response matrices. The original combination signals and the rearrangement combination signals are randomly chosen and summed to obtain multiple complex signals. The complex signal with minimum interference power is selected and then the selected signal is used to cancel interference and compensate the channel effect to obtain the detected data.
    Type: Application
    Filed: February 17, 2011
    Publication date: May 17, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jia-Wei Liu, Chorng-Ren Sheu, Chuan-Yuan Huang
  • Publication number: 20110150153
    Abstract: A method for inter-carrier interference cancellation is provided. A time-domain received signal is detected to obtain information of an inter-symbol interference free region. Multiple cyclic useful symbols are obtained from the time-domain received signal according to the information of the inter-symbol interference free region and a set of multi-step windowing coefficients is generated. Adjusted cyclic useful symbols are obtained by multiplying the cyclic useful symbols by the set of multi-step windowing coefficients, respectively, and then combined in a time domain to obtain a time-domain combination signal. The inter-carrier interference of each of sub-carriers of the time-domain combination signal is centralized on neighboring D sub-carriers. The time-domain combination signal is transformed into a frequency-domain received signal. The frequency-domain received signal and its corresponding channel response matrix are divided into overlapped signal blocks according to D.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jia-Wei Liu, Chorng-Ren Sheu, Ming-Chien Tseng