Patents by Inventor Yao-Wen Liu

Yao-Wen 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: 20240108230
    Abstract: The embodiments of the disclosure provide a method for evaluating a health condition indicator of a subject, a host, and a computer readable storage medium. The method includes: obtaining a reference heart rate of the subject and determining a heart rate indicator of the subject according to the reference heart rate; determining a fitness indicator of the subject based on physiological information of the subject; determining an age indicator of the subject based on an age of the subject; and determining the health condition indicator of the subject at least based on the heart rate indicator, the fitness indicator, and the age indicator.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Applicant: BOMDIC INC.
    Inventors: Yao Shiao, Shao Wen Tou, Yu-Ting Liu, Amy Pei-Ling Chiu
  • Publication number: 20230198190
    Abstract: A shuttered keystone jack assembly is provided in the disclosure. The shutter keystone jack assembly includes a jack housing, a frame, a shutter and an elastic member. The frame is detachably disposed on the jack housing and defining a receiving opening. The shutter is pivotally connected to the frame and selectively covering the receiving opening. The elastic member includes a first end portion and a second end portion, and the first end portion and the second end portion respectively abut against the frame and the shutter.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 22, 2023
    Inventor: YAO-WEN LIU
  • Patent number: 8801224
    Abstract: The present invention provides an LED illumination device including a base, at least one flexible circuit board and a plurality of LEDs. The at least one flexible circuit board is used for covering the base. The LEDs are mounted on the flexible circuit board. The present invention utilizes a flexible circuit board that can conform to the base having a 360 degree curved surface and a 3D solid structure to efficiently change the viewing angle of the LEDs so as to provide 360 degree viewing angle. Furthermore, a single flexible circuit board can be utilized to cover the base to provide a 360 degree viewing angle. Therefore, the LED illumination device of the present invention can reduce manufacturing cost and simplify the manufacturing process.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: August 12, 2014
    Assignee: Parlux Optoelectronics Co., Ltd.
    Inventors: Tang-Chieh Huang, Yu-Tang Yen, Ching-Hao Chang, Bing-You Weng, Sunao Hsu, Yao-Wen Liu
  • Patent number: 8531928
    Abstract: An optical storage apparatus and a method for automatically adjusting a loop gain thereof are provided. The method includes the following steps. Firstly, a compact disk is written by an erase power. Next, a writing state of the erase power is detected to generate an error signal. Finally, a loop gain of a servo control loop is corrected according to the error signal. Therefore, the loop gain can be corrected by the present invention according to a reflectance of the compact disk.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: September 10, 2013
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Yao-Wen Liu
  • Patent number: 8320223
    Abstract: An optical storage apparatus and a method for eliminating a write power transient thereof are provided. The method includes following steps. First, a target voltage level of a write voltage when next time the optical storage apparatus writes data is obtained. Then, a command value is updated by using the target voltage level according to a relationship between the command value and the write voltage. Next, the write voltage of the optical storage apparatus is pre-charged to the target voltage level according to the updated command value. Thereby, the write power transient of the optical storage apparatus can be eliminated.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: November 27, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Yao-Wen Liu
  • Patent number: 8274869
    Abstract: The present invention relates to a method for detecting a blank area of a power calibration area. The method includes the steps of: selecting a recording test area in the power calibration area; writing the recording test area with multiple stages of normal power and detecting power; forming multiple normal blocks and detecting blocks, wherein each of the detecting blocks includes one unit of unrecorded block and one unit of recorded block; and reading information from the unrecorded blocks of the detecting blocks and thus determining whether the unrecorded blocks of the detecting blocks are blank or not. Once all the unrecorded blocks of the detecting blocks are determined to be blank, it represents that the selected recording test area is totally blank.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: September 25, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yao Wen Liu, Chung Yi Wang
  • Patent number: 8270270
    Abstract: The present invention relates to methods for on-line calibrating output power of an optical pick-up. A power adjusting circuit of the optical pick-up has an optical power regulator and an optical power detector. The on-line output power calibrating method includes the steps of: performing a recording pre-process; providing a focus offset value and/or a tilt offset value to the optical pick-up; providing a setting value, corresponding to power under test, to the optical power regulator; detecting laser power emitted from the optical pick-up using the optical power detector; comparing the laser power with the power under test to adjust the setting value of the optical power regulator corresponding to the power under test; and performing an optimum power calibration if the laser power emitted from the optical pick-up conforms to the power under test.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 18, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yao Wen Liu, Chung Yi Wang
  • Patent number: 8270272
    Abstract: In an optimal recording power calibration method for improving seeking stability on a recording power calibration area, a specific area serves as a data recording area during an optimal recording power calibration, wherein a length of the specific area is such that a plurality of times of optimal recording power calibrations can be performed. The method includes: an optimal recording power calibration step of recording, with different recording power, a first length of calibration data in the specific area, and calibrating optimal recording power, wherein a data sector recorded in this step is defined as a calibration recording sector; and a data recording step of recording, with data recording power, a second length of information having a logical address beside the calibration recording sector of the specific area, wherein a data sector recorded in the step is defined as an information recording sector.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 18, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yao Wen Liu, Ching-Chuan Chen, Shu Fan Lin
  • Publication number: 20120106153
    Abstract: The present invention provides an LED illumination device including a base, at least one flexible circuit board and a plurality of LEDs. The at least one flexible circuit board is used for covering the base. The LEDs are mounted on the flexible circuit board. The present invention utilizes a flexible circuit board that can conform to the base having a 360 degree curved surface and a 3D solid structure to efficiently change the viewing angle of the LEDs so as to provide 360 degree viewing angle. Furthermore, a single flexible circuit board can be utilized to cover the base to provide a 360 degree viewing angle. Therefore, the LED illumination device of the present invention can reduce manufacturing cost and simplify the manufacturing process.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 3, 2012
    Applicant: PARLUX OPTOELECTRONICS CO, LTD.
    Inventors: TANG-CHIEH HUANG, Yu-Tang Yen, Ching-Hao Chang, Bing-You Weng, Sunao Hsu, Yao-Wen Liu
  • Publication number: 20120075974
    Abstract: In an optimal recording power calibration method for improving seeking stability on a recording power calibration area, a specific area serves as a data recording area during an optimal recording power calibration, wherein a length of the specific area is such that a plurality of times of optimal recording power calibrations can be performed. The method includes: an optimal recording power calibration step of recording, with different recording power, a first length of calibration data in the specific area, and calibrating optimal recording power, wherein a data sector recorded in this step is defined as a calibration recording sector; and a data recording step of recording, with data recording power, a second length of information having a logical address beside the calibration recording sector of the specific area, wherein a data sector recorded in the step is defined as an information recording sector.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Inventors: Yao Wen LIU, Ching-Chuan Chen, Shu Fan Lin
  • Patent number: 8098551
    Abstract: In an optimal recording power calibration method for improving seeking stability on a recording power calibration area, a specific area serves as a data recording area during an optimal recording power calibration, wherein a length of the specific area is such that a plurality of times of optimal recording power calibrations can be performed. The method includes: an optimal recording power calibration step of recording, with different recording power, a first length of calibration data in the specific area, and calibrating optimal recording power, wherein a data sector recorded in this step is defined as a calibration recording sector; and a data recording step of recording, with data recording power, a second length of information having a logical address beside the calibration recording sector of the specific area, wherein a data sector recorded in the step is defined as an information recording sector.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: January 17, 2012
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yao Wen Liu, Ching-Chuan Chen, Shu Fan Lin
  • Patent number: 8068396
    Abstract: A method for adjusting a tilt of an optical pick-up head includes the steps of: moving the optical pick-up head to a first location and focusing on; obtaining a first focus control power and a first optimum tilt angle at the first location; moving the optical pick-up head to a second location and focusing on; obtaining a second focus control power and a second optimum tilt angle at the second location; calculating an optical sensitivity according to the first and second optimum tilt angles, and the first and second focus control powers; and when the head is moved to a specific location where the tilt of the head is to be adjusted, storing a focus control power corresponding to the specific location, and calculating a tilt angle corresponding to the specific location according to the focus control power and the optical sensitivity so that the tilt of the optical pick-up head can be appropriately adjusted.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: November 29, 2011
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Yao Wen Liu
  • Patent number: 7843783
    Abstract: A method for automatically calibrating an output power of an optical pick-up head is provided. First, an optical disc is provided, wherein a relationship between the output power for writing the optical disc and a specific parameter corresponding thereto is defined as a first function. Next, the optical pick-up head is controlled to perform a writing operation on the optical disc according to an instruction value, and obtain the specific parameter corresponding to the instruction value. Next, the output power corresponding to the instruction value is obtained according to the first function and the specific parameter. Next, the instruction value is adjusted according to the instruction value and the output power, and the output power of the optical pick-up head is calibrated according to the adjusted instruction value.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 30, 2010
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yao-Wen Liu, Wen-Chun Feng
  • Publication number: 20100254239
    Abstract: The present invention relates to a method for calibrating a focus position of an optical pick-up. The optical pick-up is located on a focus position at a preset distance from a recordable optical medium to emit a recording beam of a preset power to the recordable optical medium so that corresponding optical data are recorded in the recordable optical medium. The method includes: altering a focus position of the optical pick-up during a recording process to generate a corresponding write radio frequency (RF) signal; detecting a minimum value of the write RF signal and a corresponding object focus position; and moving the optical pick-up to the object focus position so that the optical pick-up performs recording at the object focus position in the recordable optical medium.
    Type: Application
    Filed: January 20, 2010
    Publication date: October 7, 2010
    Inventors: Yao Wen LIU, Tsai Cheng-Hsiu
  • Publication number: 20100188943
    Abstract: An optical storage apparatus and a method for automatically adjusting a loop gain thereof are provided. The method includes the following steps. Firstly, a compact disk is written by an erase power. Next, a writing state of the erase power is detected to generate an error signal. Finally, a loop gain of a servo control loop is corrected according to the error signal. Therefore, the loop gain can be corrected by the present invention according to a reflectance of the compact disk.
    Type: Application
    Filed: April 24, 2009
    Publication date: July 29, 2010
    Applicant: SUNPLUS TECHNOLOGY CO., LTD.
    Inventor: Yao-Wen Liu
  • Publication number: 20100182882
    Abstract: An optical storage apparatus and a method for eliminating a write power transient thereof are provided. The method includes following steps. First, a target voltage level of a write voltage when next time the optical storage apparatus writes data is obtained. Then, a command value is updated by using the target voltage level according to a relationship between the command value and the write voltage. Next, the write voltage of the optical storage apparatus is pre-charged to the target voltage level according to the updated command value. Thereby, the write power transient of the optical storage apparatus can be eliminated.
    Type: Application
    Filed: April 27, 2009
    Publication date: July 22, 2010
    Applicant: SUNPLUS TECHNOLOGY CO., LTD.
    Inventor: Yao-Wen Liu
  • Publication number: 20100177314
    Abstract: The present invention relates to methods for on-line calibrating output power of an optical pick-up. A power adjusting circuit of the optical pick-up has an optical power regulator and an optical power detector. The on-line output power calibrating method includes the steps of: performing a recording pre-process; providing a focus offset value and/or a tilt offset value to the optical pick-up; providing a setting value, corresponding to power under test, to the optical power regulator; detecting laser power emitted from the optical pick-up using the optical power detector; comparing the laser power with the power under test to adjust the setting value of the optical power regulator corresponding to the power under test; and performing an optimum power calibration if the laser power emitted from the optical pick-up conforms to the power under test.
    Type: Application
    Filed: July 14, 2009
    Publication date: July 15, 2010
    Inventors: Yao Wen Liu, Chung Yi Wang
  • Publication number: 20100135131
    Abstract: The present invention relates to a method for detecting a blank area of a power calibration area. The method includes the steps of: selecting a recording test area in the power calibration area; writing the recording test area with multiple stages of normal power and detecting power; forming multiple normal blocks and detecting blocks, wherein each of the detecting blocks includes one unit of unrecorded block and one unit of recorded block; and reading information from the unrecorded blocks of the detecting blocks and thus determining whether the unrecorded blocks of the detecting blocks are blank or not. Once all the unrecorded blocks of the detecting blocks are determined to be blank, it represents that the selected recording test area is totally blank.
    Type: Application
    Filed: May 29, 2009
    Publication date: June 3, 2010
    Inventors: Yao Wen LIU, CHUNG YI WANG
  • Publication number: 20100074064
    Abstract: A method for adjusting a tilt of an optical pick-up head includes the steps of: moving the optical pick-up head to a first location and focusing on; obtaining a first focus control power and a first optimum tilt angle at the first location; moving the optical pick-up head to a second location and focusing on; obtaining a second focus control power and a second optimum tilt angle at the second location; calculating an optical sensitivity according to the first and second optimum tilt angles, and the first and second focus control powers; and when the head is moved to a specific location where the tilt of the head is to be adjusted, storing a focus control power corresponding to the specific location, and calculating a tilt angle corresponding to the specific location according to the focus control power and the optical sensitivity so that the tilt of the optical pick-up head can be appropriately adjusted.
    Type: Application
    Filed: August 19, 2009
    Publication date: March 25, 2010
    Inventor: Yao Wen LIU
  • Publication number: 20090185466
    Abstract: In an optimal recording power calibration method for improving seeking stability on a recording power calibration area, a specific area serves as a data recording area during an optimal recording power calibration, wherein a length of the specific area is such that a plurality of times of optimal recording power calibrations can be performed. The method includes: an optimal recording power calibration step of recording, with different recording power, a first length of calibration data in the specific area, and calibrating optimal recording power, wherein a data sector recorded in this step is defined as a calibration recording sector; and a data recording step of recording, with data recording power, a second length of information having a logical address beside the calibration recording sector of the specific area, wherein a data sector recorded in the step is defined as an information recording sector.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 23, 2009
    Inventors: Yao Wen LIU, Ching-Chuan Chen, Shu Fan Lin