Patents by Inventor Chung-Hsien Hsu

Chung-Hsien Hsu 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: 11862076
    Abstract: Disclosed is a light-emitting diode display module, including a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a scan block, a voltage conversion block, a first sink block, and a second sink block. An operating voltage of the first light-emitting diode is lower than that of the second and third light-emitting diodes. The voltage conversion block provides an auxiliary power supply voltage based on a high power supply voltage and a low power supply voltage. The first light-emitting diode is coupled between the scan block and the first sink block receiving the high power supply voltage and the auxiliary power supply voltage. The second light-emitting diode and the third light-emitting diode are coupled between the scan block and the second sink block receiving the high power supply voltage and the low power supply voltage.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: January 2, 2024
    Assignee: AUO Corporation
    Inventors: Chung-Hsien Hsu, Chi-Yu Geng, Shu-Hao Chang, Hung-Chi Wang, Ming-Hung Tu, Ya-Fang Chen, Chih-Hsiang Yang
  • Publication number: 20230282160
    Abstract: Disclosed is a light-emitting diode display module, including a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a scan block, a voltage conversion block, a first sink block, and a second sink block. An operating voltage of the first light-emitting diode is lower than that of the second and third light-emitting diodes. The voltage conversion block provides an auxiliary power supply voltage based on a high power supply voltage and a low power supply voltage. The first light-emitting diode is coupled between the scan block and the first sink block receiving the high power supply voltage and the auxiliary power supply voltage. The second light-emitting diode and the third light-emitting diode are coupled between the scan block and the second sink block receiving the high power supply voltage and the low power supply voltage.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 7, 2023
    Applicant: AUO Corporation
    Inventors: Chung-Hsien Hsu, Chi-Yu Geng, Shu-Hao Chang, Hung-Chi Wang, Ming-Hung Tu, Ya-Fang Chen, Chih-Hsiang Yang
  • Publication number: 20230207536
    Abstract: The present disclosure provides a display device, including first to fourth LEDs, a line structure, and first to fourth lines. The second LED is arranged in a first direction corresponding to the first LED. The fourth LED is arranged in a second direction corresponding to the third LED. The line structure includes first to third line segments. The first line is coupled to the first LED. The second line is coupled to the second LED. The third line is coupled to the third LED. The fourth line is coupled to the fourth LED. A portion of the first line and a portion of the second line are in parallel with the first line segment, a portion of the third line is in parallel with the second line segment, and a portion of the fourth line is in parallel with the third line segment.
    Type: Application
    Filed: July 12, 2022
    Publication date: June 29, 2023
    Inventors: Jeng-Lin CAI, Chung-Hsien HSU, Ming-Hung TU, Ya-Fang CHEN, Chih-Hsiang YANG
  • Patent number: 11620940
    Abstract: The present disclosure provides a driving circuit, including a transistor and a level shifter. The first terminal of the transistor is electrically connected to a light emitting diode and is configured to receive a supply voltage. The second terminal of the transistor is configured to receive a first reference voltage. The level shifter is configured to receive an input signal from a previous-stage driving circuit and adjust the voltage level of the input signal according to a voltage operating range formed by the supply voltage and the first reference voltage to generate a level-shifted signal corresponding to the voltage operating range and configured to control the transistor. The input signal varies between a second reference voltage and the supply voltage. The second reference voltage and the first reference voltage are different from each other and both lower than the supply voltage.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: April 4, 2023
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chung-Hsien Hsu, Ming-Hung Tu, Ya-Fang Chen, Chih-Hsiang Yang
  • Patent number: 9357500
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: May 31, 2016
    Assignee: MEDIATEK INC.
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Patent number: 9237523
    Abstract: A method of establishing a sleep mode operation between a mobile station and its serving base station is provided in a wireless communications system. When sleep mode operation is active, the MS enters into a series of sleep cycle and each sleep cycle comprises a listening window followed by a sleep window. In one novel aspect, each sleep cycle is associated with a set of sleep cycle parameters including a Sleep Cycle Length and an adjustable Listening Window Length. Each set of sleep cycle parameters is determined based on a predefined traffic characteristic of a data communication flow between the MS and it serving BS. Different embodiments of sleep cycle parameters are provided for real-time traffic, non-real-time traffic, real-time and non-real-time mixed traffic, and multi-rate transmission traffic. By using sleep cycle-based parameters, the efficiency of sleep mode operation is improved.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: January 12, 2016
    Assignee: MEDIATEK INC.
    Inventors: Chung-Hsien Hsu, Yih-Shen Chen
  • Publication number: 20130294312
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Publication number: 20130272183
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Patent number: 8515481
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: August 20, 2013
    Assignee: Mediatek Inc.
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Patent number: 8489152
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: July 16, 2013
    Assignee: Mediatek Inc.
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Publication number: 20120093091
    Abstract: Mechanism for extended service channel (SCH) access on demand to improve throughput in an alternating channel access of multiple channels in a wireless environment is provided. Due to characteristics of alternating access to a control channel and a service channel and repeating to broadcast service advertisement packets in IEEE 1609 standards, the disclosure may improve the utilization efficiency of the channels and then increase the transmission throughput.
    Type: Application
    Filed: October 17, 2010
    Publication date: April 19, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Po-Chun Kang, Tzu-Hsiang Su, Chung-Hsien Hsu, Ta-Yang Juan
  • Publication number: 20110013548
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 20, 2011
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Publication number: 20100061284
    Abstract: A method of power management for a mobile station in a multi-carrier wireless network is provided. A primary connection between the mobile station and a serving base station is first established by performing initial ranging over a primary radio frequency (RF) carrier. A secondary connection between the mobile station and the base station is then established by performing periodic ranging over a secondary RF carrier. To achieve efficient power management, the mobile station performs Open Loop Power Control and obtains long-term link measurement (CSI) of the primary carrier. The mobile station then adjusts carrier-specific parameters based on the primary carrier CSI. For RF carriers that convey on-going data traffic, Close Loop Power Control is updated per RF carrier. When the mobile station enters sleep mode operation, it receives traffic indication messages on the primary RF carrier and then dynamically wakes up one or more corresponding RF carriers for data reception.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 11, 2010
    Inventors: Yih-Shen Chen, Chung-Hsien Hsu
  • Publication number: 20100002612
    Abstract: A method of establishing a sleep mode operation between a mobile station and its serving base station is provided in a wireless communications system. When sleep mode operation is active, the MS enters into a series of sleep cycle and each sleep cycle comprises a listening window followed by a sleep window. In one novel aspect, each sleep cycle is associated with a set of sleep cycle parameters including a Sleep Cycle Length and an adjustable Listening Window Length. Each set of sleep cycle parameters is determined based on a predefined traffic characteristic of a data communication flow between the MS and it serving BS. Different embodiments of sleep cycle parameters are provided for real-time traffic, non-real-time traffic, real-time and non-real-time mixed traffic, and multi-rate transmission traffic. By using sleep cycle-based parameters, the efficiency of sleep mode operation is improved.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 7, 2010
    Inventors: Chung-Hsien Hsu, Yih-Shen Chen