Patents by Inventor Li-Wei CHANG

Li-Wei 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: 20220149519
    Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Li-Wei CHU, Ying-Chi SU, Yu-Kai CHEN, Wei-Yip LOH, Hung-Hsu CHEN, Chih-Wei CHANG, Ming-Hsing TSAI
  • Publication number: 20220150190
    Abstract: A method and system for recommending content using a chatbot are provided. The content recommendation method includes calling a chatbot to a chatroom based on a first user interaction with the chatroom; providing first content corresponding to a second user interaction with the chatroom while the chatbot is in the chatroom; and recommending second content related to the first content.
    Type: Application
    Filed: October 26, 2021
    Publication date: May 12, 2022
    Applicant: LINE CORPORATION
    Inventors: Li-Wen LIAO, Yun-RU Sun, Chan-Yuan Chang, Jun-Wei Wan
  • Publication number: 20220118317
    Abstract: A bag for storing tennis balls has an hermetic enclosure formed of flexible material, an opening larger than a tennis ball into the enclosure, the opening having a hermetic sealing zipper by which the opening may be opened and closed, and a flexible tubing from outside the enclosure through the flexible material, the flexible tubing having an open end adapted to engage an air pump, and a one-way valve adapted to admit air into the enclosure and to prevent air from exiting the enclosure through the tubing. Tennis balls placed into the bag are placed under pressure higher than the pressure inside a tennis ball by closing the opening by closing the hermetic sealing zipper, engaging an air pump to the open end of the flexible tubing, and operating the air pump until a predetermined pressure is established in the bag.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Inventor: Tony Li-Wei Chang
  • Patent number: 11187913
    Abstract: The invention discloses an X-type adjustment module, comprising a cover, a first frame, a second frame, a first light transmitting element, a second light transmitting element, a first adjustment member, and a second adjustment member. The first frame is pivotally connected to the cover. The second frame is pivotally connected to the first frame and intersects the first frame. The first light transmitting element is fixed in the first frame. The second light transmitting element is fixed in the second frame and intersects the first light transmitting element. The first adjustment member passes through the cover and abuts against the first frame. The second adjustment member passes through the cover and abuts against the second frame. A transmission path of a light beam is controlled by adjusting disposition angles of the first light transmitting element and the second light transmitting element to avoid excessive concentration of light energy.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: November 30, 2021
    Assignee: Coretronic Corporation
    Inventors: Li-Wei Chang, Chien-Chi Shen
  • Publication number: 20210312259
    Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for executing neural network training for dynamically predicting apparel wearability. For example, a method may include generating a training data set comprising one or more historical data attributes of previously shipped apparel, training a neural network based on the training data set to configure one or more trained models to output a metric for any pair of a unique user identifier and a unique apparel identifier, storing one or more trained model objects, collecting prediction data comprising at least one prediction pair including a unique user identifier and a unique apparel identifier, predicting one or more predictive wearability metrics indicative of propensity to wear, dynamically generating one or more match pairs, and determining a match wearability metric for each of the one or more match pairs based on the predicted one or more predictive wearability metrics.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Inventors: Li-Wei CHANG, Dongming JIANG, Georgiy GOLDENBERG, Krishnan VISHWANATH
  • Publication number: 20210264292
    Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for assigning wearable items in a subscription electronics transactions platform. For example, a method may include: generating a grid based on information regarding historically shipped wearable items, wherein the grid comprises at least a first cell and a second cell; determining an average percentage indicating how many wearable items have been used and an average predictive wearability metric for wearable items indicative of a propensity of a user to use the wearable items per number of wearable items shipped for each cell; generating a mapping configured to convert a predictive wearability metric to a squashed predictive wearability metric; and converting a first predictive wearability metric to a first squashed wearability metric based on the generated mapping.
    Type: Application
    Filed: April 6, 2021
    Publication date: August 26, 2021
    Inventors: Dongming JIANG, Li-Wei CHANG, Georgiy GOLDENBERG, Krishnan VISHWANATH
  • Patent number: 11068772
    Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for executing neural network training for dynamically predicting apparel wearability. For example, a method may include generating a training data set comprising one or more historical data attributes of previously shipped apparel, training a neural network based on the training data set to configure one or more trained models to output a metric for any pair of a unique user identifier and a unique apparel identifier, storing one or more trained model objects, collecting prediction data comprising at least one prediction pair including a unique user identifier and a unique apparel identifier, predicting one or more predictive wearability metrics indicative of propensity to wear, dynamically generating one or more match pairs, and determining a match wearability metric for each of the one or more match pairs based on the predicted one or more predictive wearability metrics.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 20, 2021
    Assignee: CaaStle, Inc.
    Inventors: Li-Wei Chang, Dongming Jiang, Georgiy Goldenberg, Krishnan Vishwanath
  • Patent number: 10997505
    Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for assigning wearable items in a subscription electronics transactions platform. For example, a method may include: generating a grid based on information regarding historically shipped wearable items, wherein the grid comprises at least a first cell and a second cell; determining an average percentage indicating how many wearable items have been used and an average predictive wearability metric for wearable items indicative of a propensity of a user to use the wearable items per number of wearable items shipped for each cell; generating a mapping configured to convert a predictive wearability metric to a squashed predictive wearability metric; and converting a first predictive wearability metric to a first squashed wearability metric based on the generated mapping.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: May 4, 2021
    Assignee: CaaStle, Inc.
    Inventors: Dongming Jiang, Li-Wei Chang, Georgiy Goldenberg, Krishnan Vishwanath
  • Patent number: 10921692
    Abstract: An optical mechanism includes a substrate, a supporting pad, an optical element and a fixed member. The substrate has an opening and a recess, the recess surrounds the opening and has a bottom surface. The supporting pad is disposed in the recess and has a convex curved portion, the convex curved portion protrudes away from the bottom surface of the recess, and a gap exists between the convex curved portion and the bottom surface. The optical element is disposed on the substrate, and the optical element covers the opening and abuts against the convex curved portion. The fixed member is fixed on the substrate and is adapted to press the optical element onto the substrate. The optical mechanism and the projection device of the invention can effectively prevent the optical element from being broken.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: February 16, 2021
    Assignee: Coretronic Corporation
    Inventors: Kuan Wei Pan, Li Wei Chang
  • Publication number: 20200265292
    Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for executing neural network training for dynamically predicting apparel wearability. For example, a method may include generating a training data set comprising one or more historical data attributes of previously shipped apparel, training a neural network based on the training data set to configure one or more trained models to output a metric for any pair of a unique user identifier and a unique apparel identifier, storing one or more trained model objects, collecting prediction data comprising at least one prediction pair including a unique user identifier and a unique apparel identifier, predicting one or more predictive wearability metrics indicative of propensity to wear, dynamically generating one or more match pairs, and determining a match wearability metric for each of the one or more match pairs based on the predicted one or more predictive wearability metrics.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Inventors: Li-Wei Chang, Dongming JIANG, Georgiy GOLDENBERG, Krishnan VISHWANATH
  • Publication number: 20200249551
    Abstract: An optical mechanism includes a substrate, a supporting pad, an optical element and a fixed member. The substrate has an opening and a recess, the recess surrounds the opening and has a bottom surface. The supporting pad is disposed in the recess and has a convex curved portion, the convex curved portion protrudes away from the bottom surface of the recess, and a gap exists between the convex curved portion and the bottom surface. The optical element is disposed on the substrate, and the optical element covers the opening and abuts against the convex curved portion. The fixed member is fixed on the substrate and is adapted to press the optical element onto the substrate. The optical mechanism and the projection device of the invention can effectively prevent the optical element from being broken.
    Type: Application
    Filed: January 22, 2020
    Publication date: August 6, 2020
    Inventors: KUAN WEI PAN, LI WEI CHANG
  • Patent number: 10609535
    Abstract: The present invention provides a blue-tooth communication system and broadcasting methods thereof. The broadcasting method includes: firstly, detecting N blue-tooth receivers in a blue-tooth range of a blue-tooth transmitter, wherein N is a positive integer; and broadcasting a data package by the blue-tooth transmitter in a first transmission timing window; then respectively receiving N acknowledgement packages from the blue-tooth receiver by the blue-tooth transmitter in a plurality of reception timing windows.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: March 31, 2020
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Li-Wei Chang, Chung-I Lee
  • Patent number: 10440543
    Abstract: A blue-tooth communication system and a broadcasting method therefor are provided. The broadcasting method includes: detecting N blue-tooth receivers in a blue-tooth range of a blue-tooth transmitter; broadcasting a data package during at least one transmitting timing window by the blue-tooth transmitter; and receiving N returned data packages which are respectively returned by the corresponding blue-tooth receivers by the blue-tooth transmitter during N receiving timing windows. At least one of the N returned data packages includes an acknowledge message which is recorded in a header field of the corresponding returned data package.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: October 8, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Li-Wei Chang
  • Publication number: 20190129189
    Abstract: The invention discloses an X-type adjustment module, comprising a cover, a first frame, a second frame, a first light transmitting element, a second light transmitting element, a first adjustment member, and a second adjustment member. The first frame is pivotally connected to the cover. The second frame is pivotally connected to the first frame and intersects the first frame. The first light transmitting element is fixed in the first frame. The second light transmitting element is fixed in the second frame and intersects the first light transmitting element. The first adjustment member passes through the cover and abuts against the first frame. The second adjustment member passes through the cover and abuts against the second frame. A transmission path of a light beam is controlled by adjusting disposition angles of the first light transmitting element and the second light transmitting element to avoid excessive concentration of light energy.
    Type: Application
    Filed: October 26, 2018
    Publication date: May 2, 2019
    Inventors: LI-WEI CHANG, CHIEN-CHI SHEN
  • Patent number: 9983735
    Abstract: A touch system is disclosed herein. The touch system includes detecting units and a control unit. The detecting units are disposed around a detecting area, and form a plurality of scan lines therebetween. The control unit is configured to detect first crossing points according to a transmission status of each of the scan lines, to delete ghost points of the first crossing points according to a first scan line having a first slope value of the scan lines to generate second crossing points, and to divide the second crossing points into groups to output touch points.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 29, 2018
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Li-Wei Chang, Yung-Chih Wu, Wei-Ting Chen
  • Patent number: 9906935
    Abstract: A Bluetooth low energy (BLE) beacon device and a BLE advertising method are provided. The BLE advertising method includes: enabling a broadcast action with different advertising packets simultaneously, wherein the advertising packets include connectable and unconnectable advertising packets; setting advertising time information of the advertising packets; setting advertising data and an advertising packet address code; and executing the broadcast action for the advertising packets in sequence according to the advertising time information and the type of each of the advertising packets.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: February 27, 2018
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Chung-I Lee, Hsin-Ling Chu, Li-Wei Chang
  • Publication number: 20170318413
    Abstract: A blue-tooth communication system and a broadcasting method therefor are provided. The broadcasting method includes: detecting N blue-tooth receivers in a blue-tooth range of a blue-tooth transmitter; broadcasting a data package during at least one transmitting timing window by the blue-tooth transmitter; and receiving N returned data packages which are respectively returned by the corresponding blue-tooth receivers by the blue-tooth transmitter during N receiving timing windows. At least one of the N returned data packages includes an acknowledge message which is recorded in a header field of the corresponding returned data package.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Applicant: Microchip Technology Incorporated
    Inventor: Li-Wei Chang
  • Patent number: 9712950
    Abstract: A blue-tooth communication system and a broadcasting method therefor are provided. The broadcasting method includes: detecting N blue-tooth receivers in a blue-tooth range of a blue-tooth transmitter; broadcasting a data package during at least one transmitting timing window by the blue-tooth transmitter; and receiving N returned data packages which are respectively returned by the corresponding blue-tooth receivers by the blue-tooth transmitter during N receiving timing windows. At least one of the N returned data packages includes an acknowledge message which is recorded in a header field of the corresponding returned data package.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 18, 2017
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Li-Wei Chang
  • Patent number: 9409693
    Abstract: A moisture-absorbable carton includes a carton housing, a plurality of cushions disposed in the carton housing, and at least one moisture-absorbable spacer disposed in the carton housing. The moisture-absorbable spacer and a part of the cushions surround an inner surface of the carton housing for forming an accommodation space, wherein the accommodation space is for stowing at least one protected object. The moisture-absorbable spacer comprises a paper casing and at least one drier bag disposed in the paper casing.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 9, 2016
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Li-Wei Chang, Pei-Lun Chien, Hsin-Le Chen
  • Publication number: 20160154491
    Abstract: A touch system is disclosed herein. The touch system includes detecting units and a control unit. The detecting units are disposed around a detecting area, and form a plurality of scan lines therebetween. The control unit is configured to detect first crossing points according to a transmission status of each of the scan lines, to delete ghost points of the first crossing points according to a first scan line having a first slope value of the scan lines to generate second crossing points, and to divide the second crossing points into groups to output touch points.
    Type: Application
    Filed: May 22, 2015
    Publication date: June 2, 2016
    Inventors: Li-Wei CHANG, Yung-Chih WU, Wei-Ting CHEN