Patents by Inventor Tzung-Ren Wang

Tzung-Ren Wang 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: 20240006397
    Abstract: A display panel includes a substrate composed of a plurality of pixels; and a plurality of integrated circuits (ICs) disposed on a top surface of the substrate, each IC including a plurality of IC pads and the substrate including a plurality of substrate pads corresponding to the IC pads and disposed on the top surface of the substrate. In one embodiment, the ICs are bonded on the substrate via the IC pads and the substrate pads, which are interconnected by laser as a heat source. In another embodiment, each IC is disposed above to cover up at least one pixel.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 4, 2024
    Inventors: Biing-Seng Wu, Tzung-Ren Wang
  • Publication number: 20230327654
    Abstract: A pulse-width modulation (PWM) circuit includes a partition circuit coupled to receive a PWM value representing a duty cycle of a PWM signal to be generated, and configured to accordingly generate a most-significant-bits (MSB) value representing higher-order bits of the PWM value and a least-significant-bits (LSB) value representing lower-order bits of the PWM value; a PWM generator coupled to receive the MSB value or a derivative thereof, and configured to accordingly generate a primary signal with a duty cycle corresponding to the MSB value; a delay circuit that generates a delay signal representing the primary signal with delay time determined according to the LSB value or a derivative thereof; and a combine circuit that generates the PWM signal according to the primary signal and the delay signal, by performing a logical operation on the primary signal and the delay signal.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Biing-Seng Wu, Tzung-Ren Wang, Han-Shui Hsueh
  • Publication number: 20230229231
    Abstract: A mixed reality display system includes a transparent display, through which users on both sides see each other; a plural pairs of shutter glasses worn by the users, each pair of shutter glasses being composed of a left glass and a right glass; and a controller that synchronizes the transparent display and the shutter glasses.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 20, 2023
    Inventors: Biing-Seng Wu, Tzung-Ren Wang
  • Patent number: 11670226
    Abstract: A micro-light-emitting diode (microLED) display panel includes a timing controller, and a plurality of drivers controlled by the timing controller and arranged in an order according to distance from the timing controller. Each driver includes a buffer that buffers a signal before being sent to a succeeding driver.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: June 6, 2023
    Assignees: Prilit Optronics, Inc., Himax Technologies Limited
    Inventors: Biing-Seng Wu, Tzung-Ren Wang, Hsin-Hung Chen
  • Patent number: 11508293
    Abstract: A display system includes a display panel that includes a plurality of micro-light-emitting diodes (microLEDs), the display panel being divided into a plurality of display blocks; and a plurality of drivers correspondingly driving the plurality of display blocks. Data signals of each driver are provided to a corresponding display block at different times within a horizontal scan period.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: November 22, 2022
    Assignee: Prilit Optronics, Inc.
    Inventors: Biing-Seng Wu, Tzung-Ren Wang
  • Patent number: 10978332
    Abstract: A vacuum suction apparatus includes a semiconductor substrate with a top portion having grooves and a bottom portion having through holes, wherein each said groove correspondingly connects with at least one said through hole, and the groove has a width greater than a width of the through hole; and a cover plate disposed on a top surface of the semiconductor substrate. At least one edge of the vacuum suction apparatus has a vacuum chamber, which connects with the grooves. In another embodiment, the cover plate is replaced with a vacuum cover disposed above the semiconductor substrate, wherein the vacuum cover and the semiconductor substrate construct a vacuum chamber.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 13, 2021
    Assignee: Prilit Optronics, Inc.
    Inventors: Biing-Seng Wu, Chao-Wen Wu, Tzung-Ren Wang
  • Publication number: 20180096878
    Abstract: A vacuum suction apparatus includes a semiconductor substrate with a top portion having grooves and a bottom portion having through holes, wherein each said groove correspondingly connects with at least one said through hole, and the groove has a width greater than a width of the through hole; and a cover plate disposed on a top surface of the semiconductor substrate. At least one edge of the vacuum suction apparatus has a vacuum chamber, which connects with the grooves. In another embodiment, the cover plate is replaced with a vacuum cover disposed above the semiconductor substrate, wherein the vacuum cover and the semiconductor substrate construct a vacuum chamber.
    Type: Application
    Filed: September 26, 2017
    Publication date: April 5, 2018
    Inventors: Biing-Seng Wu, Chao-Wen Wu, Tzung-Ren Wang
  • Patent number: 9704015
    Abstract: Fingerprint image processing method and device are provided, and the fingerprint image processing method includes following steps. A plurality of first fingerprint features are extracted from a fingerprint image by a first search algorithm. An inverse process is performed on the fingerprint image to obtain an inverse fingerprint image. A plurality of reference features are extracted from the inverse fingerprint image by the first search algorithm. A plurality of second fingerprint features are obtained from the fingerprint image based on coordinates of the reference features.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: July 11, 2017
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Tzung-Ren Wang
  • Publication number: 20170124380
    Abstract: Fingerprint image processing method and device are provided, and the fingerprint image processing method includes following steps. A plurality of first fingerprint features are extracted from a fingerprint image by a first search algorithm. An inverse process is performed on the fingerprint image to obtain an inverse fingerprint image. A plurality of reference features are extracted from the inverse fingerprint image by the first search algorithm. A plurality of second fingerprint features are obtained from the fingerprint image based on coordinates of the reference features.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 4, 2017
    Inventor: Tzung-Ren Wang
  • Patent number: 9420292
    Abstract: A content adaptive compression system includes a plurality of encoders being coupled to receive a portion of an image, and accordingly generating candidate compressed codes, respectively, the plurality of encoders being configured for encoding images of different contents. An error count unit is configured to determine an amount of error between the image and the candidate compressed code for each of the encoders. A mode decision unit is coupled to receive a plurality of the amount of error, the candidate compressed code associated with least amount of error being outputted as an adaptive compressed code for the image.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 16, 2016
    Assignees: NCKU Research and Development Foundation, Himax Technologies Limited
    Inventors: Ming-Der Shieh, Chun-Wei Chen, Der-Wei Yang, Chia-Cheng Lo, Tzung-Ren Wang
  • Publication number: 20160212395
    Abstract: A method of determining an optimal point in three-dimensional space includes obtaining a first vector and a second vector originating from a first and second imaging device respectively, and obtaining a third vector with minimum length perpendicular to both the first vector and the second vector. A candidate point vector along the third vector is reprojected onto a first and second image at a first and second reprojected point respectively, according to which the optimal point is determined.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 21, 2016
    Inventors: MING-DER SHIEH, Ching-Heng Su, TZUNG-REN WANG
  • Patent number: 9373162
    Abstract: An auto-contrast enhancement system includes a human visual system (HVS)-based local difference (LD) histogram unit configured to build a LD histogram with respect to intensity values; a histogram classifier configured to categorize histograms of input images based on distribution properties; and a histogram equalization (HE) unit configured to process the input image according to a result of the HVS-based LD histogram unit and the enhancement level determined in the histogram classifier.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: June 21, 2016
    Assignees: NCKU Research and Development Foundation, Himax Technologies Limited
    Inventors: Ming-Der Shieh, Der-Wei Yang, Yun Chen Chang, Tzung-Ren Wang
  • Publication number: 20160165231
    Abstract: A content adaptive compression system includes a plurality of encoders being coupled to receive a portion of an image, and accordingly generating candidate compressed codes, respectively, the plurality of encoders being configured for encoding images of different contents. An error count unit is configured to determine an amount of error between the image and the candidate compressed code for each of the encoders. A mode decision unit is coupled to receive a plurality of the amount of error, the candidate compressed code associated with least amount of error being outputted as an adaptive compressed code for the image.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 9, 2016
    Inventors: MING-DER SHIEH, Chun-Wei Chen, DER-WEI YANG, Chia-Cheng LO, TZUNG-REN WANG
  • Publication number: 20160104272
    Abstract: An auto-contrast enhancement system includes a human visual system (HVS)-based local difference (LD) histogram unit configured to build a LD histogram with respect to intensity values; a histogram classifier configured to categorize histograms of input images based on distribution properties; and a histogram equalization (HE) unit configured to process the input image according to a result of the HVS-based LD histogram unit and the enhancement level determined in the histogram classifier.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 14, 2016
    Inventors: MING-DER SHIEH, DER-WEI YANG, YUN CHEN CHANG, TZUNG-REN WANG
  • Publication number: 20160085312
    Abstract: A gesture recognition system includes a candidate node detection unit coupled to receive an input image in order to generate a candidate node; a posture recognition unit configured to recognize a posture according to the candidate node; a multiple hands tracking unit configured to track multiple hands by pairing between successive input images; and a gesture recognition unit configured to obtain motion accumulation amount according to tracking paths from the multiple hands tracking unit, thereby recognizing a gesture.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: MING-DER SHIEH, Jia-Ming Gan, DER-WEI YANG, TZUNG-REN WANG
  • Patent number: 9171373
    Abstract: A system of image stereo matching includes at least one stereo matching unit (SMU) each receives a first view and a second view of a view pair, according to which the SMU generates a first depth map for the first view. The system also includes a backward tracer operable to receive the first depth map, according to which a second depth map for the second view is derived.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: October 27, 2015
    Assignees: NCKU Research and Development Foundation, Himax Technologies Limited
    Inventors: Ming-Der Shieh, Der-Wei Yang, Li-Chia Chu, Tzung-Ren Wang
  • Patent number: 8982187
    Abstract: In some embodiments, a method of rendering a stereoscopic image based on a two-dimensional image frame and a depth map comprises generating a saliency map of the two-dimensional image frame, determining a region where is located an object of focus from the saliency map, modifying the depth map such that a range of depth values in the depth map that is associated the object of focus is redistributed toward a depth level of a display screen, and generating a virtual stereoscopic image frame based on the modified depth map and the two-dimensional image frame. In other embodiments, systems of rendering stereoscopic images are also described.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: March 17, 2015
    Assignee: Himax Technologies Limited
    Inventor: Tzung-Ren Wang
  • Patent number: 8817073
    Abstract: A 3D stereoscopic image processing system comprises a receiver unit and an image processing unit. The receiver unit is adapted to receive a pair of stereoscopic images. The image processing unit is adapted to compute a first depth map from the pair of stereoscopic images, determine extreme depth values from a window selected in the depth map, determine a filter map based on the extreme depth values, and compute a second depth map by combining the filter map with the first depth map. In other embodiments, a method of processing stereoscopic images is provided, comprising computing a first depth map from a pair of stereoscopic images, generating a filter map associated with the first depth map, and combining the first depth map with the filter map to derive a second depth map.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: August 26, 2014
    Assignee: Himax Technologies Limited
    Inventor: Tzung-Ren Wang
  • Publication number: 20140177927
    Abstract: A system of image stereo matching includes at least one stereo matching unit (SMU) each receives a first view and a second view of a view pair, according to which the SMU generates a first depth map for the first view. The system also includes a backward tracer operable to receive the first depth map, according to which a second depth map for the second view is derived.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicants: HIMAX TECHNOLOGIES LIMITED, NCKU RESEARCH AND DEVELOPMENT FOUNDATION
    Inventors: MING-DER SHIEH, DER-WEI YANG, Li-Chia Chu, TZUNG-REN WANG
  • Publication number: 20140177908
    Abstract: In a system of object detection, a color detector detects at least one image region in an input image having a color specifically pertinent to the object under detection, thereby obtaining an object width. A dynamic down-sampling unit adaptively performs down-sampling on the detected image region using a generated down-sampling factor according to the object width. An image feature generator receives the down-sampled image and accordingly generates image features for describing the object under detection, and a cascade of classifiers then operates on the image features.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicants: Himax Technologies Limited, NCKU Research and Development Foundation
    Inventors: Ming-Der SHIEH, Der-Wei YANG, Tzung-Ren WANG