Patents by Inventor Yuan-Ching Chen

Yuan-Ching Chen 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: 20240128376
    Abstract: A device a includes a substrate, two source/drain (S/D) features over the substrate, and semiconductor layers suspended over the substrate and connecting the two S/D features. The device further includes a dielectric layer disposed between two adjacent layers of the semiconductor layers and an air gap between the dielectric layer and one of the S/D features, where a ratio between a length of the air gap to a thickness of the first dielectric layer is in a range of 0.1 to 1.0.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 18, 2024
    Inventors: Shih-Chiang Chen, Wei-Yang Lee, Chia-Pin Lin, Yuan-Ching Peng
  • Patent number: 11937370
    Abstract: A base material is provided. A first patterned circuit layer and a second patterned circuit layer are formed on a first surface and a second surface of the base material. A first insulation layer and a metal reflection layer are provided on the first patterned circuit layer and a portion of the first surface exposed by the first patterned circuit layer, wherein the metal reflection layer covers the first insulation layer, and a reflectance of the metal reflection layer is substantially greater than or equal to 85%, there is no conductive material between the first patterned circuit layer and the metal reflection layer. A first ink layer is formed on the first insulation layer before the metal reflection layer is formed.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: March 19, 2024
    Assignee: UNIFLEX Technology Inc.
    Inventors: Cheng-I Tu, Ying-Hsing Chen, Meng-Huan Chia, Hsin-Ching Su, Yi-Chun Liu, Cheng-Chung Lai, Yuan-Chih Lee
  • Patent number: 10806004
    Abstract: A light-emitting device and a driving device thereof. The driving device is coupled to a load and includes a first current source and a second current source. The first current source provides a base current to drive the load. The second current source generates an adjustment current according to an adjustment voltage and enables the adjustment current to adjust magnitude of a current flowing through the load.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: October 13, 2020
    Assignee: Industrial Technology Research Institute
    Inventor: Yuan-Ching Chen
  • Patent number: 10609786
    Abstract: An illumination system including light source devices, a light receiver, a calculation module and a control module is provided. The light source devices emit light beams having different frequencies respectively. The light receiver receives at least one of the light beams emitted from the light source devices. The calculation module is coupled to the light receiver and obtains at least one optical parameter of the at least one of the light beams according to the at least one of the light beams received by the light receiver. Each of the at least one optical parameter includes a light intensity, a color temperature, a color rendering index or an illumination ratio. The control module is coupled to the calculation module and the light source devices. The control module controls the at least one optical parameter of the at least one of the light beams. A control method thereof is also provided.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 31, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Ya-Hui Chiang, Chia-Fen Hsieh, Yuan-Ching Chen, Chun-Hsing Lee
  • Publication number: 20190246464
    Abstract: A light-emitting device and a driving device thereof. The driving device is coupled to a load and includes a first current source and a second current source. The first current source provides a base current to drive the load. The second current source generates an adjustment current according to an adjustment voltage and enables the adjustment current to adjust magnitude of a current flowing through the load.
    Type: Application
    Filed: December 24, 2018
    Publication date: August 8, 2019
    Applicant: Industrial Technology Research Institute
    Inventor: Yuan-Ching Chen
  • Publication number: 20190069376
    Abstract: An illumination system including light source devices, a light receiver, a calculation module and a control module is provided. The light source devices emit light beams having different frequencies respectively. The light receiver receives at least one of the light beams emitted from the light source devices. The calculation module is coupled to the light receiver and obtains at least one optical parameter of the at least one of the light beams according to the at least one of the light beams received by the light receiver. Each of the at least one optical parameter includes a light intensity, a color temperature, a color rendering index or an illumination ratio. The control module is coupled to the calculation module and the light source devices. The control module controls the at least one optical parameter of the at least one of the light beams. A control method thereof is also provided.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 28, 2019
    Applicant: Industrial Technology Research Institute
    Inventors: Ya-Hui Chiang, Chia-Fen Hsieh, Yuan-Ching Chen, Chun-Hsing Lee
  • Patent number: 9728953
    Abstract: A fault detection circuit includes a micro processing unit configured to output a first pulse width modulation (PWM) signal, a driver electrically coupled to the micro processing unit, and a comparator configured to electrically connect the micro processing unit and the driver. The first PWM signal is configured to drive the driver to output a second PWM signal configured to drive the electrical device. The comparator is configured to compare the second PWM signal with a reference level to output a third PWM signal to the micro processing unit. The third PWM signal contains a number of high level signals and low level signals. The micro processing unit is configured to detect the number of the high level signals and the number of the low level signals during at least one time period to determine a status of an electrical device.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 8, 2017
    Assignee: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.
    Inventor: Yuan-Ching Chen
  • Publication number: 20170122499
    Abstract: An LED (light emitting diode) lamp, includes a lamp holder, a connection portion connected with the lamp holder, a lampshade mounted on the connection portion to define a first cavity with the connection portion and the lamp holder, a plurality of filaments are located in the first cavity, and a supporting pillar connected with the lamp holder and a plurality of wire frames, the filaments are spaced from each other and are configured around the supporting pillar. Each of the filaments and the supporting pillar are configured at different planes, and each filament are configured in different planes, and the filaments are coupled with the lamp holder by the wire frames to emit light.
    Type: Application
    Filed: December 31, 2015
    Publication date: May 4, 2017
    Inventors: Hao-Xiang LIN, Cheng-Chun LIAO, Yuan-Ching CHEN
  • Patent number: 9549449
    Abstract: A fault detection apparatus coupling with a lamp module includes a current detector and a controlling module. The controlling module is coupled with the current detector. A fault detection method of a fault detection apparatus is also provided in the present disclose. The method includes providing a current detector to detect a current variation of one lamp of a lamp module in a period, and provide a controlling module to compare the current variation with a reference value stored in the controlling module to determine a state of the lamp module.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 17, 2017
    Assignee: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.
    Inventor: Yuan-Ching Chen
  • Publication number: 20160227613
    Abstract: A fault detection apparatus coupling with a lamp module includes a current detector and a controlling module. The controlling module is coupled with the current detector. A fault detection method of a fault detection apparatus is also provided in the present disclose. The method includes providing a current detector to detect a current variation of one lamp of a lamp module in a period, and provide a controlling module to compare the current variation with a reference value stored in the controlling module to determine a state of the lamp module.
    Type: Application
    Filed: August 11, 2015
    Publication date: August 4, 2016
    Inventor: YUAN-CHING CHEN
  • Patent number: 9307614
    Abstract: A temperature and illumination adjusting system, including: a temperature and illumination adjusting device, including a CPU, receiving a temperature value and an illumination value, and generating a first PWM value and a second PWM value according to a first formula and a second formula; and a communication unit, outputting the first PWM value and the second PWM value; and a lamp device, including a lamp communication unit, receiving the first PWM value and the second PWM value; a first light module; a second light module; a first PWM driving unit, driving the first light module with the first PWM value; a second PWM driving unit, driving the second light module with the second PWM value, wherein the outputs of the first light module and the second light module have different color temperature.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: April 5, 2016
    Assignee: Lextar Electronics Corporation
    Inventors: Chun-Kuang Chen, Feng-Ling Lin, Hui-Ying Chen, Po-Shen Chen, Yuan-Ching Chen
  • Patent number: 9210778
    Abstract: A light control system includes a wired control device, a wireless control device, a communication module, and light devices. The wired control device includes a first user interface and a first wired communication protocol interface. The wireless control device includes a second user interface and a first wireless communication protocol interface. The communication module includes a second wired communication protocol interface and a second wireless communication protocol interface. Each of the light devices includes a third wired communication protocol interface, and each of the light devices performs data exchange with the third wired communication protocol interface of another one of the light devices by a network cable connected to the third wired communication protocol interface.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: December 8, 2015
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Yuan-Ching Chen, Chun-Kuang Chen
  • Patent number: 9148751
    Abstract: A wireless control system and a wireless network expansion method applied thereto are provided. The wireless control system comprises a mobile platform and a plurality of wireless devices capable of switching between a first role and a second role. The wireless network expansion method comprises following steps. A mobile platform is turned on. The mobile platforms scans the wireless devices and links to any wireless device serving the first role and then sends a control command to corresponding wireless device, which accordingly broadcasts the control command. The control command is received by at least one wireless device serving the second role. The wireless devices cyclically switch between the first role and the second role to continuously broadcast the control command to other wireless devices serving the second role, so that all of the wireless devices can finally receive the control command from the mobile platform.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: September 29, 2015
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Yuan-Ching Chen, Chun-Kuang Chen
  • Publication number: 20150244161
    Abstract: A fault detection circuit includes a micro processing unit configured to output a first pulse width modulation (PWM) signal, a driver electrically coupled to the micro processing unit, and a comparator configured to electrically connect the micro processing unit and the driver. The first PWM signal is configured to drive the driver to output a second PWM signal configured to drive the electrical device. The comparator is configured to compare the second PWM signal with a reference level to output a third PWM signal to the micro processing unit. The third PWM signal contains a number of high level signals and low level signals. The micro processing unit is configured to detect the number of the high level signals and the number of the low level signals during at least one time period to determine a status of an electrical device.
    Type: Application
    Filed: February 12, 2015
    Publication date: August 27, 2015
    Inventor: YUAN-CHING CHEN
  • Patent number: 9055625
    Abstract: The control method comprises the following steps. Firstly, whether a touch event occurs in a control device is determined. Then, responding to a color temperature set and a brightness set from the control device, a first PWM and a second PWM is generated. Then, whether the lamp connects with to the control device is determined. Then, the first PWM and the second PWM is packaged in a color control package if the lamp connects with to the control device. Then, the color control package is transmitted to the lamp in wireless.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: June 9, 2015
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Feng-Ling Lin, Po-Shen Chen, Hui-Ying Chen, Chun-Kuang Chen, Yuan-Ching Chen
  • Publication number: 20150008846
    Abstract: A light control system includes a wired control device, a wireless control device, a communication module, and light devices. The wired control device includes a first user interface and a first wired communication protocol interface. The wireless control device includes a second user interface and a first wireless communication protocol interface. The communication module includes a second wired communication protocol interface and a second wireless communication protocol interface. Each of the light devices includes a third wired communication protocol interface, and each of the light devices performs data exchange with the third wired communication protocol interface of another one of the light devices by a network cable connected to the third wired communication protocol interface.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 8, 2015
    Applicant: Lextar Electronics Corporation
    Inventors: Yuan-Ching CHEN, Chun-Kuang CHEN
  • Publication number: 20150011164
    Abstract: A wireless control system and a wireless network expansion method applied thereto are provided. The wireless control system comprises a mobile platform and a plurality of wireless devices capable of switching between a first role and a second role. The wireless network expansion method comprises following steps. A mobile platform is turned on. The mobile platforms scans the wireless devices and links to any wireless device serving the first role and then sends a control command to corresponding wireless device, which accordingly broadcasts the control command. The control command is received by at least one wireless device serving the second role. The wireless devices cyclically switch between the first role and the second role to continuously broadcast the control command to other wireless devices serving the second role, so that all of the wireless devices can finally receive the control command from the mobile platform.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 8, 2015
    Applicant: Lextar Electronics Corporation
    Inventors: Yuan-Ching CHEN, Chun-Kuang CHEN
  • Publication number: 20140214362
    Abstract: A method of detecting a flickering frequency of an ambient light source includes the following steps. First, a light intensity of the light source is sensed in a predetermined time period according to a sampling frequency to obtain a plurality of sample values. Then, the sample values are calculated to obtain a median value. Next, the sample values are binarized according to a result of a comparison between the sample values and the median value to obtain a first sequence. The first sequence is differentiated to obtain a second sequence, and the second sequence includes numbers ?1, 0, and 1. Then, a distance between the same numbers in the second sequence is calculated, and the sampling frequency is divided by the distance to obtain the flickering frequency of the ambient light source. A system of detecting a flickering frequency of an ambient light source is also disclosed herein.
    Type: Application
    Filed: October 16, 2013
    Publication date: July 31, 2014
    Applicant: Lextar Electronics Corporation
    Inventors: Yuan-Ching CHEN, Chun-Kuang CHEN
  • Publication number: 20130271031
    Abstract: A temperature and illumination adjusting system, including: a temperature and illumination adjusting device, including a CPU, receiving a temperature value and an illumination value, and generating a first PWM value and a second PWM value according to a first formula and a second formula; and a communication unit, outputting the first PWM value and the second PWM value; and a lamp device, including a lamp communication unit, receiving the first PWM value and the second PWM value; a first light module; a second light module; a first PWM driving unit, driving the first light module with the first PWM value; a second PWM driving unit, driving the second light module with the second PWM value, wherein the outputs of the first light module and the second light module have different color temperature.
    Type: Application
    Filed: April 12, 2013
    Publication date: October 17, 2013
    Applicant: LEXTAR ELECTRONICS CORPORATION
    Inventors: Chun-Kuang Chen, Feng-Ling Lin, Hui-Ying Chen, Po-Shen Chen, Yuan-Ching Chen
  • Patent number: 8508138
    Abstract: A lighting system for dim ambience has at least one light source module, implemented in an ambience. The light source module has multiple light emitting units. Each unit is respectively controlled to produce a luminance. A luminance detecting unit detects a photonic luminance and a luminance ratio. A processing and operation module calculates a mesopic luminance according to the photonic luminance and the luminance ratio. When the photonic luminance is less than a dim-light setting value, a power control information is obtained by a fitness operation with a given condition set. The power control information is corresponding to an optimized mesopic luminance after fitness. A control unit receives the power control information to modulate the luminance of the light emitting units.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 13, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Yuan-Ching Chen, Hsueh-Chih Chang, Hung-Lieh Hu, Hsiang-Chi Chung