Patents by Inventor Chun Guan

Chun Guan 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: 11442491
    Abstract: A dynamic power monitor for monitoring a power of a block in an integrated circuit is provided. The dynamic power monitor includes an input buffer configured to store first state values corresponding to internal signals of the block according to a first cycle of a clock signal; a power calculator configured to identify first power classification values corresponding to the block according to the first cycle, based on the first state values; and a filter configured to identify a first filtered value of the first power classification values.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Su Kim, Taekkyun Shin, Chun-Guan Kim, Yohan Kwon, Yun Heo
  • Publication number: 20210116955
    Abstract: A dynamic power monitor for monitoring a power of a block in an integrated circuit is provided. The dynamic power monitor includes an input buffer configured to store first state values corresponding to internal signals of the block according to a first cycle of a clock signal; a power calculator configured to identify first power classification values corresponding to the block according to the first cycle, based on the first state values; and a filter configured to identify a first filtered value of the first power classification values.
    Type: Application
    Filed: May 13, 2020
    Publication date: April 22, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Su Kim, Taekkyun Shin, Chun-Guan Kim, Yohan Kwon, Yun Heo
  • Publication number: 20200068193
    Abstract: A test system is provided. Said test system comprises a device under test, a measurement equipment, and a remote source simulator. In this context, the remote source simulator is adapted to simulate a remote video source, wherein the remote video source is adapted to transmit a video comprising at least one detection pattern to the device under test. Furthermore, the device under test is adapted to display the video. In addition to this, the measurement equipment is adapted to detect the at least one detection pattern with respect to the device under test and to determine the number of detection patterns having been received by the device under test.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 27, 2020
    Inventors: Rajashekar DURAI, Fernando SCHMITT, Chun Guan TAY, Gerson Calamba BACOR, Sheheen MUHAMED
  • Patent number: 10554964
    Abstract: A test system is provided. Said test system comprises a device under test, a measurement equipment, and a remote source simulator. In this context, the remote source simulator is adapted to simulate a remote video source, wherein the remote video source is adapted to transmit a video comprising at least one detection pattern to the device under test. Furthermore, the device under test is adapted to display the video. In addition to this, the measurement equipment is adapted to detect the at least one detection pattern with respect to the device under test and to determine the number of detection patterns having been received by the device under test.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 4, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Rajashekar Durai, Fernando Schmitt, Chun Guan Tay, Gerson Calamba Bacor, Sheheen Muhamed
  • Patent number: 10097819
    Abstract: The present invention provides a testing system for a video and audio reproduction system, the testing system comprising a data source, comprising video and audio data for reproduction by the video and audio reproduction system, the video and audio data comprising unique marks in every video frame and every audio frame, a recording unit, configured to record a video stream and an audio stream generated by the video and audio reproduction system based on the video and audio data, and a test processor, configured to extract the unique marks from the recorded video stream and the recorded audio stream, and to verify if respective unique marks of simultaneous video frames and audio frames have been recorded by the recording unit simultaneously. Furthermore, the present invention provides a testing method, a computer program product, and a non-transitory computer readable data carrier.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: October 9, 2018
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Felix Aumer, Rajashekar Durai, Gerson Bacor, Chun Guan Tay, Fernando Schmitt, Christoph Nufer
  • Patent number: 9892503
    Abstract: A reticle that is within specifications is inspected to generate baseline candidate defects and their location and size. After using the reticle in photolithography, the reticle is inspected to generate current candidate defects and their location and size. An inspection report of filtered candidate defects and their images is generated so that these candidate defects include a first subset of the current candidate defects and their images and exclude a second subset of the current candidate defects and their images. Each of the first subset of candidate defects has a location and size that fails to match any baseline candidate defect's location and size, and each of the excluded second subset of candidate defects has a location and size that matches a baseline candidate defect's location and size.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: February 13, 2018
    Assignee: KLA-Tencor Corporation
    Inventors: Chun Guan, Yalin Xiong, Joseph M. Blecher, Robert A. Comstock, Mark J. Wihl
  • Patent number: 9723302
    Abstract: A measuring system for measuring video processing quality of a device under test includes a measuring device comprising transmission means set up for transmitting a video to the device under test. The device under test is set up for receiving the video and displaying it using a display included by the device under test. The video includes at least a first barcode to be displayed for a first duration. The measuring system includes a barcode reader set up for reading the first barcode from the display of the device under test. The measuring system is set up for determining the video processing quality of the device under test based upon measuring results of the barcode reader.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: August 1, 2017
    Assignee: ROHDE & SCHWARZ ASIA PTE., LTD
    Inventors: Chun Guan Tay, Rajashekar Durai
  • Publication number: 20170150142
    Abstract: The present invention provides a testing system for a video and audio reproduction system, the testing system comprising a data source, comprising video and audio data for reproduction by the video and audio reproduction system, the video and audio data comprising unique marks in every video frame and every audio frame, a recording unit, configured to record a video stream and an audio stream generated by the video and audio reproduction system based on the video and audio data, and a test processor, configured to extract the unique marks from the recorded video stream and the recorded audio stream, and to verify if respective unique marks of simultaneous video frames and audio frames have been recorded by the recording unit simultaneously. Furthermore, the present invention provides a testing method, a computer program product, and a non-transitory computer readable data carrier.
    Type: Application
    Filed: February 25, 2016
    Publication date: May 25, 2017
    Inventors: Felix Aumer, Rajashekar Durai, Gerson Bacor, Chun Guan Tay, Fernando Schmitt
  • Publication number: 20170053395
    Abstract: A reticle that is within specifications is inspected to generate baseline candidate defects and their location and size. After using the reticle in photolithography, the reticle is inspected to generate current candidate defects and their location and size. An inspection report of filtered candidate defects and their images is generated so that these candidate defects include a first subset of the current candidate defects and their images and exclude a second subset of the current candidate defects and their images. Each of the first subset of candidate defects has a location and size that fails to match any baseline candidate defect's location and size, and each of the excluded second subset of candidate defects has a location and size that matches a baseline candidate defect's location and size.
    Type: Application
    Filed: November 7, 2016
    Publication date: February 23, 2017
    Applicant: KLA-Tencor Corporation
    Inventors: Chun Guan, Yalin Xiong, Joseph M. Blecher, Robert A. Comstock, Mark J. Wihl
  • Patent number: 9518935
    Abstract: A reticle that is within specifications is inspected so as to generate a baseline event indicating a location and a size value for each unusual reticle feature. After using the reticle in photolithography, the reticle is inspected so as to generate a current event indicating a location and a size value for each unusual reticle feature. An inspection report of candidate defects and their images is generated so that these candidate defects include a first subset of the current events and their corresponding candidate defect images and exclude a second subset of the current events and their corresponding excluded images. Each of the first included events has a location and size value that fails to match any baseline event's location and size value, and each of the excluded second events has a location and size value that matches a baseline event's location and size value.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 13, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: Chun Guan, Yalin Xiong, Joseph M. Blecher, Robert A. Comstock, Mark J. Wihl
  • Publication number: 20160301924
    Abstract: A measuring system for measuring video processing quality of a device under test includes a measuring device comprising transmission means set up for transmitting a video to the device under test. The device under test is set up for receiving the video and displaying it using a display included by the device under test. The video includes at least a first barcode to be displayed for a first duration. The measuring system includes a barcode reader set up for reading the first barcode from the display of the device under test. The measuring system is set up for determining the video processing quality of the device under test based upon measuring results of the barcode reader.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 13, 2016
    Inventors: Chun Guan TAY, Rajashekar DURAI
  • Publication number: 20150029498
    Abstract: A reticle that is within specifications is inspected so as to generate a baseline event indicating a location and a size value for each unusual reticle feature. After using the reticle in photolithography, the reticle is inspected so as to generate a current event indicating a location and a size value for each unusual reticle feature. An inspection report of candidate defects and their images is generated so that these candidate defects include a first subset of the current events and their corresponding candidate defect images and exclude a second subset of the current events and their corresponding excluded images. Each of the first included events has a location and size value that fails to match any baseline event's location and size value, and each of the excluded second events has a location and size value that matches a baseline event's location and size value.
    Type: Application
    Filed: May 15, 2014
    Publication date: January 29, 2015
    Applicant: KLA-Tencor Corporation
    Inventors: Chun Guan, Yalin Xiong, Joseph M. Blecher, Robert A. Comstock, Mark J. Wihl
  • Patent number: 8914754
    Abstract: A semiconductor inspection apparatus identifies regions of a reticle or semiconductor wafer appropriate for cell-to-cell inspection by analyzing a semiconductor design database. Appropriate regions can be identified in a region map for use by offline inspection tools.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: December 16, 2014
    Assignee: KLA-Tencor Corporation
    Inventors: Carl Hess, John D. Miller, Shi Rui-Fang, Chun Guan
  • Publication number: 20130111417
    Abstract: A semiconductor inspection apparatus identifies regions of a reticle or semiconductor wafer appropriate for cell-to-cell inspection by analyzing a semiconductor design database. Appropriate regions can be identified in a region map for use by offline inspection tools.
    Type: Application
    Filed: April 23, 2012
    Publication date: May 2, 2013
    Applicant: KLA-TENCOR CORPORATION
    Inventors: Carl Hess, John D. Miller, Shi Rui-Fang, Chun Guan
  • Patent number: 7844079
    Abstract: A technique, associated system and program code, for retrieving depth information about at least one surface of an object, such as an anatomical feature. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the anatomical feature; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth information from the recovered patterns to produce a depth map/mapping thereof.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: November 30, 2010
    Assignee: University of Kentucky Research Foundation (UKRF)
    Inventors: Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
  • Publication number: 20090016572
    Abstract: A technique, associated system and program code, for retrieving depth information about at least one surface of an object, such as an anatomical feature. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the anatomical feature; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth information from the recovered patterns to produce a depth map/mapping thereof.
    Type: Application
    Filed: September 15, 2008
    Publication date: January 15, 2009
    Inventors: Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
  • Publication number: 20080279446
    Abstract: A technique, associated system and program code, for retrieving depth information about at least one surface of an object. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the object; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth information from the recovered patterns to produce a depth map/mapping thereof.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 13, 2008
    Inventors: Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
  • Patent number: 7440590
    Abstract: A technique, associated system and program code, for retrieving depth information about at least one surface of an object. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the object; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth information from the recovered patterns to produce a depth map/mapping thereof.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: October 21, 2008
    Assignee: University of Kentucky Research Foundation
    Inventors: Laurence G. Hassebrook, Daniel L. Lau, Chun Guan