Patents by Inventor Jian Chang

Jian Chang 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: 20180218059
    Abstract: Partitioning a set of data using a binary format to more evenly distribute data values across a set of data partitions. By using a system of matching binary indices in a “back to front” manner, data values stored in or associated with data partitions are more evenly balanced.
    Type: Application
    Filed: March 23, 2018
    Publication date: August 2, 2018
    Inventors: Jian Chang Huang, Lei Li, Xin Sheng Mao, Jia Tan, Ya Xin Wu
  • Patent number: 10019504
    Abstract: Partitioning a set of data using a binary format to more evenly distribute data values across a set of data partitions. By using a system of matching binary indices in a “back to front” manner, data values stored in or associated with data partitions are more evenly balanced.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jian Chang Huang, Lei Li, Xin Sheng Mao, Jia Tan, Ya Xin Wu
  • Publication number: 20180159221
    Abstract: A multi-frequency antenna structure includes a feed portion, a first ground portion, a first radiating portion, a second radiating portion, and a third radiating portion. The feed portion supplies current to the antenna structure. The first ground portion is spaced apart from the feed portion and grounds the antenna structure. The first radiating portion is electrically connected to the feed portion. The second radiating portion is spaced apart from the first radiating portion and is electrically connected to the first ground portion. The third radiating portion is spaced apart from the second radiating portion and is electrically connected to the feed portion and the first radiating portion.
    Type: Application
    Filed: November 13, 2017
    Publication date: June 7, 2018
    Inventors: GENG-HONG LIOU, YUN-JIAN CHANG
  • Publication number: 20180026354
    Abstract: An antenna structure includes a metal housing, a first radiating portion, a second g radiating portion, a third radiating portion, and a signal feed source. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a groove and a gap. The metal housing is divided into at least an antenna section by the slot, the groove, and the gap. The first radiating portion, the second radiating portion, and the third radiating portion are spaced apart from each other. One of three radiating portions is electrically connected to the antenna section. The remaining of the three radiating portions are spaced apart from the antenna section. The signal feed source is electrically connected to one radiating portion and the radiating portions of the three radiating portions not electrically connected to the signal feed source are grounded.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Inventors: YEN-HUI LIN, YUN-JIAN CHANG, JUNG-CHIN LIN
  • Publication number: 20180026338
    Abstract: An antenna structure includes a metal housing, a first resonance portion, a second resonance portion, an extending portion, and a signal feed source. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a groove and a gap. The metal housing is divided into at least an antenna section by the slot, the groove, and the gap. The first and second resonance portions and the extending portion are spaced apart from each other. The first resonance portion and the extending portion are both directly and electrically connected to the antenna section or are spaced apart and electrically coupled to the antenna section. The second resonance portion is electrically connected to the antenna section. One resonance portion is electrically connected to the signal feed source and the other resonance portion is grounded.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Inventors: YEN-HUI LIN, YUN-JIAN CHANG, JUNG-CHIN LIN
  • Publication number: 20180026332
    Abstract: An antenna structure includes a metal housing, a first ground portion, a second ground portion, a first feed source, and a coupling portion. The metal housing includes a front frame, a backboard, and a side frame. The side frame defines a slot and the front frame defines a first groove and a first gap. The slot, the first groove, and the first gap separate a first antenna section from the metal housing. The first ground portion and the second ground portion are both electrically connected to the first antenna section and grounded. One end of the coupling portion is electrically connected to the first feed source. The coupling portion is spaced apart from the first antenna section and current from the first feed source is coupled to the first antenna section through the coupling portion.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Inventors: YEN-HUI LIN, YUN-JIAN CHANG, JUNG-CHIN LIN
  • Patent number: 9769382
    Abstract: An electronic device is provided. The electronic device includes at least one image sensor, and a processor for generating a plurality of images having different noise characteristics through the at least one image sensor, and combining the plurality of images.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Soo Kim, Hwa-Yong Kang, Young-Kwon Yoon, Jian Chang
  • Publication number: 20170118453
    Abstract: An image processing method and device are provided. The image processing device includes an image sensor module including a lens and an image sensor; and a processor configured to obtain, using the image sensor module, a first image having first color information, the first image corresponding to an external object, by; move at least one of the lens and the image sensor based on a designated pixel unit; obtain, using the image sensor module with the moved at least one of the lens and the image sensor, a second image having second color information, the second image corresponding to the external object; and generate a third image having third color information based on the first color information and the second color information, the third image corresponding to the external object.
    Type: Application
    Filed: October 27, 2016
    Publication date: April 27, 2017
    Inventors: Dongsoo KIM, Hwayong Kang, Jian Chang, Youngkwon Yoon, Donghoon Jang
  • Patent number: 9450287
    Abstract: Broadband antenna for wireless communication device is disclosed. The broadband antenna includes a grounding portion, a feeding portion, a connecting portion, a first radiation body connected to an end of the connecting portion, and second radiation body connected to another end of the connecting portion opposite to the first radiating body. The first radiating body and the second radiating body are symmetrical to each other with respect to the connecting body. The feeding portion is connected to an end of the first radiating body away from the second radiating body, the grounding portion is connected to an end of the second radiating body away from the first radiating body.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 20, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yun-Jian Chang, Yen-Hui Lin
  • Patent number: 9407062
    Abstract: A wavelength tracking Fabry-Perot Laser Diode (F-P LD), and an optical transmitter including the same are disclosed, the wavelength keepable F-P LD including a gain section configured to provide and modulate a gain using an injected first current; and a phase shift/modulation section configured to vary wavelength relative to oscillation mode of light advanced from the gain section by injected second current or voltage and to modulate phases.
    Type: Grant
    Filed: December 15, 2012
    Date of Patent: August 2, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Joon-Young Kim, Sang-Rok Mun, Sang-Hwa Yoo, Byungil Seo, Myeonggyun Kye, Jian Chang
  • Publication number: 20160080653
    Abstract: An electronic device is provided. The electronic device includes at least one image sensor, and a processor for generating a plurality of images having different noise characteristics through the at least one image sensor, and combining the plurality of images.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 17, 2016
    Inventors: Dong-Soo KIM, Hwa-Yong KANG, Young-Kwon YOON, Jian CHANG
  • Publication number: 20160034551
    Abstract: Partitioning a set of data using a binary format to more evenly distribute data values across a set of data partitions. By using a system of matching binary indices in a “back to front” manner, data values stored in or associated with data partitions are more evenly balanced.
    Type: Application
    Filed: July 22, 2015
    Publication date: February 4, 2016
    Inventors: Jian Chang Huang, Lei Li, Xin Sheng Mao, Jia Tan, Ya Xin Wu
  • Publication number: 20150288137
    Abstract: A wavelength tracking Fabry-Perot Laser Diode (F-P LD), and an optical transmitter including the same are disclosed, the wavelength keepable F-P LD including a gain section configured to provide and modulate a gain using an injected first current; and a phase shift/modulation section configured to vary wavelength relative to oscillation mode of light advanced from the gain section by injected second current or voltage and to modulate phases.
    Type: Application
    Filed: December 15, 2012
    Publication date: October 8, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chang-Hee Lee, Joon-Young Kim, Sang-Rok Mun, Sang-Hwa Yoo, Byungil Seo, Myeonggyun Kye, Jian Chang
  • Publication number: 20140340281
    Abstract: Broadband antenna for wireless communication device is disclosed. The broadband antenna includes a grounding portion, a feeding portion, a connecting portion, a first radiation body connected to an end of the connecting portion, and second radiation body connected to another end of the connecting portion opposite to the first radiating body. The first radiating body and the second radiating body are symmetrical to each other with respect to the connecting body. The feeding portion is connected to an end of the first radiating body away from the second radiating body, the grounding portion is connected to an end of the second radiating body away from the first radiating body.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Applicant: CHIUN MAI COMMUNICATION SYSTEMS, INC.
    Inventors: YUN-JIAN CHANG, YEN-HUI LIN
  • Patent number: 8826435
    Abstract: One embodiment relates to a computer-implemented method for protecting a removable storage device from malware on a computer apparatus. An indication is received that the removable storage device has been connected to the computer apparatus, wherein the removable storage device is partitioned into a CD-ROM partition and a user partition. An anti-virus module stored in the CD-ROM partition on the removable storage device is automatically executed upon connecting the removable storage device to a computer apparatus. Other embodiments, aspects and features may also be disclosed.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: September 2, 2014
    Assignee: Trend Micro Incorporated
    Inventors: Wei Chiang, Tzu-Hsiao Weng, Chih-Kuan Chien, Jian-Chang Cheng, Yih-Shiou Jiang, Wan-Pao Ko, Robert Chen, Yun-Hsien Liu, Tsung-Kang Liu
  • Patent number: 8737459
    Abstract: A transmitter includes an equalizer for conditioning a data signal in response to a first and a second equalizer setting. The first and second equalizer settings are both associated with a selected point on a two-dimensional search grid. The search grid includes a first equalizer setting and a second equalizer setting for each point on the search grid. The transmitter transmits a data signal across a first channel medium using settings associated with a selected point on the search grid. A receiver analyzes the received signal from the transmitter to determine a signal quality metric. The search grid is used to select settings from neighboring points to produce signals that are evaluated to produce signal quality metrics. The results of the evaluations are used to efficiently search the search grid for optimum equalizer settings for the transmitter.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 27, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: David Christopher Sawey, Jian Chang
  • Patent number: 8531365
    Abstract: A liquid crystal display device includes a plurality of pixel units. Each of the pixel units includes a first thin film transistor and a second thin film transistor, a reflective sheet, and a storage capacitor. The channel width/length ratio of the first thin film transistor and the channel width/length ratio of the second thin film transistor are both larger than 12/5. The reflective sheet is disposed adjacent to the first thin film transistor and the second thin film transistor to reflect ambient light. The storage capacitor is formed at a position overlapping the reflective sheet and has a capacitance of larger than 1 pF.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: September 10, 2013
    Assignee: Wintek Corporation
    Inventors: Chih-Chang Lai, Nai Heng Chang, Wen-Chun Wang, Po-Hsien Wang, Jyun-Sian Li, Ching-Fu Hsu, Wei-Jian Chang
  • Publication number: 20130010854
    Abstract: A transmitter includes an equalizer for conditioning a data signal in response to a first and a second equalizer setting. The first and second equalizer settings are both associated with a selected point on a two-dimensional search grid. The search grid includes a first equalizer setting and a second equalizer setting for each point on the search grid. The transmitter transmits a data signal across a first channel medium using settings associated with a selected point on the search grid. A receiver analyzes the received signal from the transmitter to determine a signal quality metric. The search grid is used to select settings from neighboring points to produce signals that are evaluated to produce signal quality metrics. The results of the evaluations are used to efficiently search the search grid for optimum equalizer settings for the transmitter.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Inventors: David Christopher Sawey, Jian Chang
  • Patent number: 8331114
    Abstract: A dual-switch flyback power converter includes a control circuit to generate a switching signal. A high-side driving circuit includes a pulse generation circuit. The pulse generation circuit generates a pulse-on signal and a pulse-off signal to control two transistors in response to the switching signal. The two transistors further respectively provide a level-shift-on signal and a level-shift-off signal to a comparison circuit to enable/disable a high-side driving signal. Without using a charge pump circuit to power the high-side driving circuit, a floating winding of a transformer is utilized to provide a floating voltage to power the high-side driving circuit, which reduces the cost of the dual-switch flyback power converter and ensures a sufficient high-side driving capability of the high-side driving circuit.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 11, 2012
    Assignee: System General Corporation
    Inventors: Ta-Yung Yang, Shih-Jen Yang, Ming-Hsuan Lee, Jian Chang
  • Patent number: D812798
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: March 13, 2018
    Assignee: GARDENIA INDUSTRIAL LIMITED
    Inventor: Jian Chang Wu