Patents by Inventor Cheng Tu

Cheng Tu 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: 11218674
    Abstract: A projection device including a projection unit, an image capture device and a control unit is provided. The projection unit includes a light source. The projection unit is configured to project an image picture to a projection area. The image capture device is configured to obtain an image capture picture including the image picture in an image capture range. The image capture range is larger than the projection area. The control unit is coupled to the image capture device. The control unit is configured to determine, according to a picture variation value of the image capture picture, whether to adjust the brightness of the light source. In addition, a brightness adjusting method used for the projection device is also provided. According to the disclosure, the brightness of the light source of the projection device may be properly adjusted according to environmental factors.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Chi-Wei Lin, Chien-Chun Peng, Hsun-Cheng Tu
  • Publication number: 20210400065
    Abstract: A bot traffic detection system detects scripted network traffic. The bot traffic detection system may use a one-sided unsupervised machine learning technique to estimate distributions for human, non-scripted traffic (clean distributions). The clean distributions may be dynamically updated based on the latest traffic patterns. To estimate the clean distributions the bot traffic detection system may identify, for a certain subset of network traffic, feature values of the certain subset of network traffic that do not include bot traffic (clean buckets). Using clean traffic may provide more robust and stable behavior that can be tracked over time. Using the clean distributions, the bot traffic detection system may generate a rules table that indicates a likelihood that network traffic with a given combination of feature values is scripted network traffic. The bot traffic detection system may apply the rules table in real time to identify scripted network traffic.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 23, 2021
    Inventors: Cormac HERLEY, Fang TU, Cheng CAO, Jayadev PILLAI
  • Publication number: 20210377500
    Abstract: A method for generating a mask and a projection apparatus for performing the method are provided. The method includes: projecting a first pattern onto a projection surface, wherein the projection surface includes a non-planar region, and the first pattern includes multiple first straight lines; shooting a first image of the projection surface on which the first pattern is rendered; finding at least one first specific line segment in the first image, wherein each first specific line segment includes at least one first inflection point; delineating a first contour based on the at least one first inflection point in a case of determining that the at least one first inflection point in the first image is suitable for delineating the first contour; and generating a first mask pattern based on the first contour in a case of determining that the first contour matches a region contour of the non-planar region.
    Type: Application
    Filed: March 30, 2021
    Publication date: December 2, 2021
    Applicant: Coretronic Corporation
    Inventors: Chi-Wei Lin, Chien-Chun Peng, Hsun-Cheng Tu
  • Publication number: 20210377501
    Abstract: A projection system and a self-adaptive adjustment method are provided. The projection system includes a projection device, an image capturing device, and a processing device. The projection device sequentially projects sub-pattern arrays of a pattern array to a projection region of a projection surface. The image capturing device sequentially captures the sub-pattern arrays projected on the projection surface to output pattern images. The processing device analyzes the pattern images to obtain pattern coordinates and a pattern order of projected patterns in each pattern image. The processing device determines at least a part of the projected patterns to be effective patterns according to the pattern coordinates and the pattern order, and adjusts the projection device according to the effective patterns. The projection system and the self-adaptive adjustment method provide good projection quality.
    Type: Application
    Filed: April 22, 2021
    Publication date: December 2, 2021
    Applicant: Coretronic Corporation
    Inventors: Hsun-Cheng Tu, Chien-Chun Peng, Chi-Wei Lin
  • Patent number: 11146768
    Abstract: A projection system and a projection method are provided. The projection system includes a processing module, a projection module and a photographing module. The projection module is coupled to the processing module, and projects a first projection image including a first asymmetric graph. The photographing module is coupled to the processing module, and captures at least a part of the first projection image based on a photographing range, so as to output a first photographed image including at least one second asymmetric graph. The processing module analyzes the first photographed image to determine whether the at least one second asymmetric graph is consistent with a geometric configuration of the first asymmetric graph. The processing module determines an effective photographing area according to one of the at least one second asymmetric graph that is consistent with the geometric configuration of the first asymmetric graph in the first photographed image.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 12, 2021
    Assignee: Coretronic Corporation
    Inventors: Hsun-Cheng Tu, Chien-Chun Peng, Chi-Wei Lin
  • Publication number: 20210297643
    Abstract: A projection system and a positioning method capable of positioning a projected image are provided. The projection system includes a projection device, an image capturing device, and a determination module. The projection device projects a plurality of display grid points. The image capturing device captures images of the plurality of display grid points to obtain a plurality of display results corresponding to the plurality of display grid points. The determination module receives the plurality of display results. The determination module controls the projection device not to project at least one unrecognizable display grid point corresponding to the at least one unrecognizable display result when determining that the plurality of display results include the at least one unrecognizable display result. The invention is provided to improve the accuracy of matching or stitching of a projected image.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 23, 2021
    Applicant: Coretronic Corporation
    Inventors: Chien-Chun Peng, Hsun-Cheng Tu, Chi-Wei Lin
  • Publication number: 20210217926
    Abstract: A light-emitting apparatus comprises a board having a plurality of conductive channels penetrating thereof; a plurality of light emitting units for emitting different color lights, disposed on the board and electrically connected to the plurality of conductive channels; and an opaque layer arranged on the board for preventing the plurality of light emitting units from crosstalk, and comprising a plurality of holes for exposing and separating the plurality of light emitting units in a top view.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Min-Hsun HSIEH, Tzer-Perng CHEN, Jen-Chau WU, Yuh-Ren SHIEH, Chuan-Cheng TU
  • Patent number: 10985585
    Abstract: A charger management method to be implemented by a server includes steps of: with respect to each charger, in response to receipt from the charger in a non-charging state of a notification including a charger identifier (ID) of the charger, updating the state flag of one of charger information sets stored in the server and including the charger ID to a second value; and in response to receipt of a query including a target location from a user end electronic device, selecting, based on the charger information sets and the target location, at least one candidate charging station information set from multiple charging station information sets.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 20, 2021
    Inventors: Ping-Jui Hsieh, Chia-Cheng Tu, Te-Chuan Liu, Jen-Chiun Lin, Yuh-Rey Chen, Po-Yu Chuang
  • Patent number: 10978615
    Abstract: The present disclosure provides a light-emitting apparatus comprising a board having a plurality of first metal contacts and a plurality of second metal contacts on a top surface; a plurality of LEDs being bonded to the board, the each of the LEDs comprising a first cladding layer on the substrate, an active layer on the first cladding layer, a second cladding layer on the active layer, an upper surface on the second cladding layer, a first metal layer, and a second metal layer, wherein the first metal layer and the second metal layer are between the active layer and the board; an opaque layer between the adjacent LEDs and comprising a polymer mixed with a plurality of inorganic particles; and an encapsulating layer on the upper surfaces and opposite to the board, wherein the encapsulating layer does not cover a side wall of the active layer; and an underfill material between the board and the plurality of LEDs, wherein the underfill material surrounds each of the first metal layer and the second metal layer.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 13, 2021
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Tzer-Perng Chen, Jen-Chau Wu, Yuh-Ren Shieh, Chuan-Cheng Tu
  • Publication number: 20210058593
    Abstract: A projection device including a projection unit, an image capture device and a control unit is provided. The projection unit includes a light source. The projection unit is configured to project an image picture to a projection area. The image capture device is configured to obtain an image capture picture including the image picture in an image capture range. The image capture range is larger than the projection area. The control unit is coupled to the image capture device. The control unit is configured to determine, according to a picture variation value of the image capture picture, whether to adjust the brightness of the light source. In addition, a brightness adjusting method used for the projection device is also provided. According to the disclosure, the brightness of the light source of the projection device may be properly adjusted according to environmental factors.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 25, 2021
    Applicant: Coretronic Corporation
    Inventors: Chi-Wei Lin, Chien-Chun Peng, Hsun-Cheng Tu
  • Patent number: 10884470
    Abstract: A system for managing power supply devices includes a server including a database and a server end processing module. The server end processing module is configured to receive an alteration request from a user end electronic device and an alteration-confirmation signal from a service end electronic device, and send a confirmation response to the service end electronic device based on the received alteration request and alteration-confirmation signal in order for the service end electronic device to enable a target power supply device to update data stored therein.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Kwang Yang Motor Co., Ltd.
    Inventors: Chen-Sheng Lin, Chia-Cheng Tu, Jen-Chiun Lin, Po-Yu Chuang, Yuh-Rey Chen, Te-Chuan Liu
  • Patent number: 10837754
    Abstract: A wireless passive strain sensor is provided. The wireless passive strain sensor includes an outer coil holder, a reading inductance coil, a capacitance patch, an inner coil holder, and a sensing inductance coil. A shaft penetrates through the outer coil holder. The reading inductance coil is disposed on the outer coil holder. The capacitance patch is disposed on the shaft. The inner coil holder is disposed inside the outer coil holder. The inner coil holder is disposed on the shaft. The sensing inductance coil is disposed on the inner coil holder. The sensing inductance coil is electrically connected to the capacitance patch.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: November 17, 2020
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Wen-Syang Hsu, Sung-Yueh Wu, Cheng Tu, Chia-Min Chao
  • Publication number: 20200350884
    Abstract: A method includes depositing a first metal layer on a semiconductor substrate; etching the first metal layer to form a first electrode having a first lead; depositing a piezoelectric layer on the semiconductor substrate and first electrode; etching the piezoelectric layer to a shape of the gyrator to be formed within the circulator; depositing a second metal layer on the piezoelectric layer; etching the second metal layer to form a second electrode having a second lead, the second electrode being positioned opposite the first electrode, wherein the first lead and the second lead form an electrical port; depositing a magnetostrictive layer on the second electrode; etching the magnetostrictive layer to approximately the shape of the piezoelectric layer; depositing a third metal layer on the magnetostrictive layer; and etching the third metal layer to form a metal coil that has a gap on one side to define a magnetic port.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Songbin Gong, Ruochen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Publication number: 20200280706
    Abstract: A projection system and a projection method are provided. The projection system includes a processing module, a projection module and a photographing module. The projection module is coupled to the processing module, and projects a first projection image including a first asymmetric graph. The photographing module is coupled to the processing module, and captures at least a part of the first projection image based on a photographing range, so as to output a first photographed image including at least one second asymmetric graph. The processing module analyzes the first photographed image to determine whether the at least one second asymmetric graph is consistent with a geometric configuration of the first asymmetric graph. The processing module determines an effective photographing area according to one of the at least one second asymmetric graph that is consistent with the geometric configuration of the first asymmetric graph in the first photographed image.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Applicant: Coretronic Corporation
    Inventors: Hsun-Cheng Tu, Chien-Chun Peng, Chi-Wei Lin
  • Publication number: 20200244289
    Abstract: A data writing method, a memory control circuit unit and a memory storage device are provided. The method includes: executing a first programming operation to data according to a first RAID ECC rate, programming the data into at least a portion of a plurality of first physical programming units, and generating a first RAID ECC; and executing a second programming operation to the data programmed into at least the portion of the first physical programming units according to a second RAID ECC rate, programming the data into at least a portion of a plurality of second physical programming units, and generating a second RAID ECC, wherein the first RAID ECC rate is different from the second RAID ECC rate.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 30, 2020
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chia-Sheng Chou, Chia-Cheng Tu, Kuo-Ming Tseng, Yi-Liang Hu
  • Patent number: 10727804
    Abstract: An integrated circuit is a layered device, on a semiconductor substrate, which contains metal electrodes that sandwich a piezoelectric layer, followed by a magnetostrictive layer and a metal coil. The metal electrodes define an electrical port across which to receive an alternating current (AC) voltage, which is applied across the piezoelectric layer to cause a time-varying strain in the piezoelectric layer. The magnetostrictive layer is to translate the time-varying strain, received by way of a vibration mode from interaction with the piezoelectric layer, into a time-varying electromagnetic field. The metal coil, disposed on the magnetostrictive layer, includes a magnetic port at which to induce a current based on exposure to the time-varying electromagnetic field generated by the magnetostrictive layer.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 28, 2020
    Assignee: Board of Trustees of the University of Illinois
    Inventors: Songbin Gong, Ruochen Lu, Tomas Manzaneque Garcia, Cheng Tu, Daniel Shoemaker, Chengxi Zhao
  • Publication number: 20200227591
    Abstract: The present disclosure provides a light-emitting apparatus comprising a board having a plurality of first metal contacts and a plurality of second metal contacts on a top surface; a plurality of LEDs being bonded to the board, the each of the LEDs comprising a first cladding layer on the substrate, an active layer on the first cladding layer, a second cladding layer on the active layer, an upper surface on the second cladding layer, a first metal layer, and a second metal layer, wherein the first metal layer and the second metal layer are between the active layer and the board; an opaque layer between the adjacent LEDs and comprising a polymer mixed with a plurality of inorganic particles; and an encapsulating layer on the upper surfaces and opposite to the board, wherein the encapsulating layer does not cover a side wall of the active layer; and an underfill material between the board and the plurality of LEDs, wherein the underfill material surrounds each of the first metal layer and the second metal layer.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Min-Hsun HSIEH, Tzer-Perng CHEN, Jen-Chau WU, Yuh-Ren SHIEH, Chuan-Cheng TU
  • Patent number: 10713160
    Abstract: A data writing method, a memory control circuit unit and a memory storage device are provided. The method includes: executing a first programming operation to data according to a first RAID ECC rate, programming the data into at least a portion of a plurality of first physical programming units, and generating a first RAID ECC; and executing a second programming operation to the data programmed into at least the portion of the first physical programming units according to a second RAID ECC rate, programming the data into at least a portion of a plurality of second physical programming units, and generating a second RAID ECC, wherein the first RAID ECC rate is different from the second RAID ECC rate.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 14, 2020
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chia-Sheng Chou, Chia-Cheng Tu, Kuo-Ming Tseng, Yi-Liang Hu
  • Publication number: 20200213565
    Abstract: A projection system and a projection method are provided. The projection system includes a processing module, a projection module and a photographing module. The projection module projects a first projection image based on a projection scope. The photographing module captures a part of the first projection image based on a photographing scope, so as to obtain a first photographic image. The part of the first projection image includes a plurality of first positioning grid points. The processing module analyzes the first photographic image, so as to obtain a plurality of first grid point coordinates. The processing module calculates a plurality of preset grid point coordinates corresponding to a plurality of preset positioning grid points in the whole projection scope one by one according to the first grid point coordinates. The processing module determines a projection result in the projection scope according to the preset grid point coordinates.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Applicant: Coretronic Corporation
    Inventors: Chien-Chun Peng, Hsun-Cheng Tu
  • Patent number: 10594994
    Abstract: A projection system and a projection method are provided. A projector projects a correction image towards a projection screen. The correction image has a pattern, a portion of the pattern exceeds a frame of the projection screen, and the pattern includes strip regions. An image capturing device obtains a captured image towards the projection screen and transmits the captured image to a processor. The captured image has brightness information of the strip regions. The processor analyzes a brightness difference of the strip regions between the projection screen and the frame in the captured image, calculates a position of the frame according to the brightness difference, and performs calculations according to the position of the frame to obtain a coordinate conversion table. The projector performs a warping operation on the projected image according to the table and projects the warped projected image into the projection screen.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: March 17, 2020
    Assignee: Coretronic Corporation
    Inventors: Hsun-Cheng Tu, Chien-Chun Peng, Yung-Chiao Liu