Patents by Inventor Yen-Wen Chen

Yen-Wen 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).

  • Patent number: 9362456
    Abstract: An optoelectronic semiconductor device includes a substrate, a semiconductor system having an active layer formed on the substrate and an electrode structure formed on the semiconductor system, wherein the layout of the electrode structure having at least a first conductivity type contact zone or a first conductivity type bonding pad, a second conductivity type bonding pad, a first conductivity type extension electrode, and a second conductivity type extension electrode wherein the first conductivity type extension electrode and the second conductivity type extension electrode have three-dimensional crossover, and partial of the first conductivity type extension electrode and the first conductivity type contact zone or the first conductivity type bonding pad are on the opposite sides of the active layer.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: June 7, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Wei-Yo Chen, Yen-Wen Chen, Chien-Yuan Wang, Min-Hsun Hsieh, Tzer-Perng Chen
  • Publication number: 20160049444
    Abstract: The application discloses an array-type light-emitting device comprising a substrate, a semiconductor light-emitting array formed on the substrate and emitting a first light with a first spectrum, wherein the semiconductor light-emitting array comprises a first light-emitting unit and a second light-emitting units, a first wavelength conversion layer formed on the first light-emitting unit for converting the first light into a third light with a third spectrum, and a circuit layer connecting the first light-emitting unit and the second light-emitting unit in a connection form to make the first light-emitting and the second light-emitting unit light alternately in accordance with a predetermined clock when driving by a power supply.
    Type: Application
    Filed: October 26, 2015
    Publication date: February 18, 2016
    Inventors: Shu-Ting HSU, Yen-Wen CHEN, Wei-Yo CHEN, Tsung-Xian LEE
  • Publication number: 20150317181
    Abstract: An operating system switching method for use in an electronic device is provided. The method includes the steps of: determining whether the first operating system receives an operating system switching command at time t1; storing first status data to a volatile memory and a non-volatile memory when a first operating system enters a non-operating state from an operating state based on the operating system switching command; writing second status data stored in the non-volatile memory to the volatile memory; and controlling the second operating system to enter the operating state from the non-operating state and recover to the operating status at time t2 based on the second status data stored in the volatile memory, wherein time t2 is earlier than time t1.
    Type: Application
    Filed: April 15, 2015
    Publication date: November 5, 2015
    Inventors: Wei CHIANG, Rung-Lung LIN, Chi-Hsiu KAO, Yen-Wen CHEN
  • Publication number: 20150241243
    Abstract: A method for counting steps and an electronic apparatus are provided. The method includes the following steps: obtaining first three-axis accelerating values of the electronic apparatus; removing a specific ratio of an acceleration of gravity from the first three-axis accelerating values to generate second three-axis accelerating values; calculating inner product values and outer produce values according to the second three-axis accelerating values; determining whether a user of the electronic apparatus is in a walking status; if yes, setting the inner product values as reference values; if no, setting the outer product values as the reference values; calculating a number of steps corresponding to the second three-axis accelerating values according to the reference values.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 27, 2015
    Inventors: Yen-Wen Chen, Rung-Lung Lin
  • Publication number: 20150121235
    Abstract: In a method for managing servers, operation parameters of servers located in a room are downloaded from a database in response to receiving a quick response code (Qrcode) of a doorplate of the room. An electronic map is displayed on a display screen of the electronic device, the electronic map showing a location of the room and a location of each of the servers in the room. The operation parameters of the selected server are displayed in response to receiving a selected server on the electronic map.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 30, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: YEN-WEN CHEN
  • Patent number: 8981411
    Abstract: This application discloses a light-emitting device with narrow dominant wavelength distribution and a method of making the same. The light-emitting device with narrow dominant wavelength distribution at least includes a substrate, a plurality of light-emitting stacked layers on the substrate, and a plurality of wavelength transforming layers on the light-emitting stacked layers, wherein the light-emitting stacked layer emits a first light with a first dominant wavelength variation; the wavelength transforming layer absorbs the first light and converts the first light into the second light with a second dominant wavelength variation; and the first dominant wavelength variation is larger than the second dominant wavelength variation.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 17, 2015
    Assignee: Epistar Corporation
    Inventors: Chih-Chiang Lu, Shu-Ting Hsu, Yen-Wen Chen, Chien-Yuan Wang, Ru-Shi Liu, Min-Hsun Hsieh
  • Publication number: 20150008848
    Abstract: A method of operating a color-temperature-tunable device is described. The method drives a first light emitting diode (LED) chip with a first driving current from a first power source. The first LED chip is configured to emit a first light having a first peak wavelength. The method also drives a second LED chip with a second driving current from a second power source. The second LED chip is configured to emit a second light having a second peak wavelength. The method further maintains a total driving current, which includes the first driving current and the second driving current, approximately constant. The second peak wavelength is different from the first peak wavelength.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 8, 2015
    Inventors: Yen Wen Chen, Shih Chen Shi, Hsi-Chuan Hsu
  • Publication number: 20140306253
    Abstract: This disclosure relates to a light-emitting apparatus comprising a submount, a chip carrier formed on the submount, a light-emitting chip formed on the chip carrier, a reflecting cup formed on the submount and enclosing the light-emitting chip and the chip carrier, and a transparent encapsulating material for encapsulating the light-emitting chip.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 16, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Min-Hsun Hsieh, Ta-Cheng Hsu, Meng-lan Tsai, Chih-Chiang Lu, Chien-Yuan Wang, Yen-Wen Chen, Ya-Ju Lee
  • Patent number: 8860300
    Abstract: A method of operating a color-temperature-tunable device is described. The method drives a first light emitting diode (LED) chip with a first driving current from a first power source. The first LED chip is configured to emit a first light having a first peak wavelength. The method also drives a second LED chip with a second driving current from a second power source. The second LED chip is configured to emit a second light having a second peak wavelength. The method further maintains a total driving current, which includes the first driving current and the second driving current, approximately constant. The second peak wavelength is different from the first peak wavelength.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 14, 2014
    Assignee: Everlight Electronics Co., Ltd.
    Inventors: Yen Wen Chen, Shih Chen Shi, Hsi-Chuan Hsu
  • Patent number: 8791912
    Abstract: A display system is disclosed. The display system includes several electrical apparatuses and a display control unit. The display control unit builds connections with the electrical apparatuses. The display control unit includes an information generating module and a display driving module. When the display system is in a combination display mode, the information generating module detects and generates combination information about combination relations among the display units of the electrical apparatuses. The display driving module drives each of the display units to display a corresponding image block according to the combination information. Hence, the displayed corresponding image blocks can be combined to form an entire image. A display method is also disclosed.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 29, 2014
    Assignee: National Central University
    Inventors: Yen-Wen Chen, I-Hsuan Peng, Yen-Yin Chu
  • Patent number: 8738026
    Abstract: A wireless transmission system includes several candidate devices, a wireless transmission interface and a wireless transmission device. The wireless transmission device includes a storage unit, a transmission direction information generating unit and a processing unit. The processing unit receives the device information of each of the candidate devices from each of the candidate devices respectively through the wireless transmission interface. The processing unit calculates transmission direction range according to the transmission direction information, which is generated through the transmission direction information generating unit. The processing unit selects at least one of the candidate devices, which matches the transmission direction range. Wherein, the selected at least one candidate device is taken as at least one transmission target device.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: May 27, 2014
    Assignee: National Central University
    Inventors: Yen-Wen Chen, I-Hsuan Peng
  • Patent number: 8692270
    Abstract: A light-emitting apparatus includes a submount, a chip carrier formed on the submount, and a light-emitting chip formed on the chip carrier. The light-emitting apparatus also includes a reflecting cup formed on the submount and enclosing the light-emitting chip and the chip carrier, and a transparent encapsulating material for encapsulating the light-emitting chip.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: April 8, 2014
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Ta-Cheng Hsu, ML Tsai, Chih-Chiang Lu, Chien-Yuan Wang, Yen-Wen Chen, Ya-Ju Lee
  • Publication number: 20140048833
    Abstract: This application discloses a light-emitting device with narrow dominant wavelength distribution and a method of making the same. The light-emitting device with narrow dominant wavelength distribution at least includes a substrate, a plurality of light-emitting stacked layers on the substrate, and a plurality of wavelength transforming layers on the light-emitting stacked layers, wherein the light-emitting stacked layer emits a first light with a first dominant wavelength variation; the wavelength transforming layer absorbs the first light and converts the first light into the second light with a second dominant wavelength variation; and the first dominant wavelength variation is larger than the second dominant wavelength variation.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 20, 2014
    Applicant: Epistar Corporation
    Inventors: Chih-Chiang LU, Shu-Ting HSU, Yen-Wen CHEN, Chien-Yuan WANG, Ru-Shi LIU, Min-Hsun HSIEH
  • Publication number: 20130285562
    Abstract: A method of operating a color-temperature-tunable device is described. The method drives a first light emitting diode (LED) chip with a first driving current from a first power source. The first LED chip is configured to emit a first light having a first peak wavelength. The method also drives a second LED chip with a second driving current from a second power source. The second LED chip is configured to emit a second light having a second peak wavelength. The method further maintains a total driving current, which includes the first driving current and the second driving current, approximately constant. The second peak wavelength is different from the first peak wavelength.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Yen Wen Chen, Shih Chen Shi, Hsi-Chuan Hsu
  • Patent number: 8569083
    Abstract: This application discloses a light-emitting device with narrow dominant wavelength distribution and a method of making the same. The light-emitting device with narrow dominant wavelength distribution at least includes a substrate, a plurality of light-emitting stacked layers on the substrate, and a plurality of wavelength transforming layers on the light-emitting stacked layers, wherein the light-emitting stacked layer emits a first light with a first dominant wavelength variation; the wavelength transforming layer absorbs the first light and converts the first light into the second light with a second dominant wavelength variation; and the first dominant wavelength variation is larger than the second dominant wavelength variation.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 29, 2013
    Assignee: Epistar Corporation
    Inventors: Chih-Chiang Lu, Shu-Ting Hsu, Yen-Wen Chen, Chien-Yuan Wang, Ru-Shi Liu, Min-Hsun Hsieh
  • Patent number: 8497629
    Abstract: A color-temperature-tunable device comprises a first light emitting diode (LED) chip group comprising at least one first blue LED chip that emits a first light having a first peak wavelength, a second LED chip group comprising at least one second blue LED chip that emits a second light having a second peak wavelength different from the first peak wavelength, and a wavelength converting layer above at least a portion of the first LED chip group and a portion of the second LED chip group. The first LED chip group and the second LED chip group are driven by a first driving current and a second driving current, respectively.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 30, 2013
    Assignee: Everlight Electronics Co., Ltd.
    Inventors: Yen Wen Chen, Shih Chen Shi, Hsi-Chuan Hsu
  • Patent number: 8486729
    Abstract: A semiconductor light-emitting device having a thinned structure comprises a thinned structure formed between a semiconductor light-emitting structure and a carrier. The manufacturing method comprises the steps of forming a semiconductor light-emitting structure above a substrate; attaching the semiconductor light-emitting structure to a support; thinning the substrate to form a thinned structure; forming or attaching a carrier to the thinned substrate; and removing the support.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: July 16, 2013
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chih-Chiang Lu, Chien-Yuan Wang, Yen-Wen Chen, Jui-Hung Yeh, Shih-Chin Hung, Yu-Wei Tu, Chun-Yi Wu, Wei-Chih Peng
  • Patent number: 8410495
    Abstract: The application discloses an array-type light-emitting device comprising a substrate, a semiconductor light-emitting array formed on the substrate and emitting a first light with a first spectrum, wherein the semiconductor light-emitting array comprises a first light-emitting unit and a second light-emitting units, a first wavelength conversion layer formed on the first light-emitting unit for converting the first light into a third light with a third spectrum, and a circuit layer connecting the first light-emitting unit and the second light-emitting unit in a connection form to make the first light-emitting and the second light-emitting unit light alternately in accordance with a predetermined clock when driving by a power supply.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 2, 2013
    Assignee: Epistar Corporation
    Inventors: Shu-Ting Hsu, Yen-Wen Chen, Wei-Yo Chen, Tsung Xian Lee
  • Publication number: 20130056772
    Abstract: This application discloses a light-emitting device with narrow dominant wavelength distribution and a method of making the same. The light-emitting device with narrow dominant wavelength distribution at least includes a substrate, a plurality of light-emitting stacked layers on the substrate, and a plurality of wavelength transforming layers on the light-emitting stacked layers, wherein the light-emitting stacked layer emits a first light with a first dominant wavelength variation; the wavelength transforming layer absorbs the first light and converts the first light into the second light with a second dominant wavelength variation; and the first dominant wavelength variation is larger than the second dominant wavelength variation.
    Type: Application
    Filed: February 24, 2010
    Publication date: March 7, 2013
    Inventors: Chih-Chiang LU, Shu-Ting Hsu, Yen-Wen Chen, Chien-Yuan Wang, Ru-Shi Liu, Min-Hsun Hsieh
  • Publication number: 20130029440
    Abstract: A semiconductor light-emitting device is disclosed. The semiconductor light-emitting device comprises a multilayer epitaxial structure disposed on a substrate. The substrate has a predetermined lattice direction perpendicular to an upper surface thereof, wherein the predetermined lattice direction is angled toward [0 11] or [01 1] from [100], or toward [011] or [0 11] from [ 100] so that the upper surface of the substrate comprises at least two lattice planes with different lattice plane directions. The multilayer epitaxial structure has a roughened upper surface perpendicular to the predetermined lattice direction. The invention also discloses a method for fabricating a semiconductor light-emitting device.
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Applicant: Epistar Corporation
    Inventors: Ya-ju LEE, Ta-Cheng Hsu, Ming-Ta Chin, Yen-Wen Chen, Lo Wu-Tsung, Chung-Yuan Li, Min-Hsun Hsieh