Patents by Inventor Chih-Wei Tsai

Chih-Wei Tsai 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: 20230087397
    Abstract: A personnel tracking and disinfecting system is applied to a place and includes recognition devices, at least one disinfecting device, storage and central controller. The central controller is configured to: control the recognition devices to recognize the person in the place; determine the position of the person in the place by cooperating with the recognition devices; activate the disinfecting device in the main area to disinfect the person in the main area, generate a disinfecting record based on recognition result generated by the recognition device in the main area, and store the disinfecting record in the storage; and determine whether the person in the extended area has the disinfecting record based on recognition result generated by the recognition device in the extended area.
    Type: Application
    Filed: December 27, 2021
    Publication date: March 23, 2023
    Inventors: Chia-Jen CHENG, Chih-Wei TSAI, Chih-Hsien WANG
  • Publication number: 20210334376
    Abstract: An anti-virus chip includes a first connection terminal, a second connection terminal, a detection unit and a processing unit. The first connection terminal and the second connection terminal are respectively coupled to a connection port and a system circuit of an electronic device. The detection unit detects whether the connection port is connected to an external device via the first connection terminal. When the detection unit detects that the connection port is connected to the external device, the processing unit performs a virus-scan program on the external device to determine whether a virus exists in the external device. When determining that a virus does not exist in the external device, the processing unit establishes a first transmission path between the first connection terminal and the second connection terminal. When determining that a virus exists in the external device, the processing unit does not establish the first transmission path.
    Type: Application
    Filed: March 3, 2021
    Publication date: October 28, 2021
    Inventors: Ming-Che HUNG, Chia-Ching LU, Shih-Hsuan YEN, Chih-Wei TSAI
  • Patent number: 10978122
    Abstract: A memory includes (n?1) non-volatile cells, (n?1) bit lines and a current driving circuit. Each of the (n?1) non-volatile cells includes a first terminal and a second terminal. An ith bit line of the (n?1) bit lines is coupled to a first terminal of an ith non-volatile cell of the (n?1) non-volatile cells. The current driving circuit includes n first transistors coupled to the (n?1) non-volatile cells.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: April 13, 2021
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Yen Tseng, Yu-Tse Kuo, Chang-Hung Chen, Shu-Ru Wang, Ya-Lan Chiou, Chun-Hsien Huang, Chih-Wei Tsai, Hsin-Chih Yu, Yi-Ting Wu, Cheng-Tung Huang, Jen-Yu Wang, Jhen-Siang Wu, Po-Chun Yang, Yung-Ching Hsieh, Jian-Jhong Chen, Bo-Chang Li
  • Publication number: 20200395073
    Abstract: A ternary content addressable memory unit includes a first inverter, a second inverter, a third inverter, a fourth inverter, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor. The first inverter includes an input terminal, and an output terminal coupled to a first node. The second inverter includes an input terminal coupled to the first node and an output terminal coupled to the input terminal of the first inverter. The third inverter includes an input terminal coupled to a second node and an output terminal. The fourth inverter includes an input terminal coupled to the output terminal of the third inverter and an output terminal coupled to the second node.
    Type: Application
    Filed: July 4, 2019
    Publication date: December 17, 2020
    Inventors: Chun-Yen Tseng, Ching-Cheng Lung, Yu-Tse Kuo, Chun-Hsien Huang, Chih-Wei Tsai, Hsin-Chih Yu, Shu-Ru Wang
  • Patent number: 10861549
    Abstract: A ternary content addressable memory unit includes a first inverter, a second inverter, a third inverter, a fourth inverter, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor. The first inverter includes an input terminal, and an output terminal coupled to a first node. The second inverter includes an input terminal coupled to the first node and an output terminal coupled to the input terminal of the first inverter. The third inverter includes an input terminal coupled to a second node and an output terminal. The fourth inverter includes an input terminal coupled to the output terminal of the third inverter and an output terminal coupled to the second node.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: December 8, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Yen Tseng, Ching-Cheng Lung, Yu-Tse Kuo, Chun-Hsien Huang, Chih-Wei Tsai, Hsin-Chih Yu, Shu-Ru Wang
  • Patent number: 10762951
    Abstract: An SRAM device includes a memory cell and a keeper circuit. The memory cell is formed in an active area and coupled to a first bit line and a second bit line. The keeper circuit is formed in the active area and configured to charge the second bit line when the first bit line is at a first voltage level and the second bit line is at a second voltage level or charge the first bit line when the second bit line is at the first voltage level and the first bit line is at the second voltage level, wherein the second voltage level is higher than the first voltage level.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 1, 2020
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chih-Wei Tsai, Tsan-Tang Chen, Chung-Cheng Tsai, Yen-Hsueh Huang, Chang-Ting Lo, Chun-Yen Tseng, Yu-Tse Kuo
  • Patent number: 10640635
    Abstract: A resin composition and an application thereof are provided, wherein the resin composition includes a thermoplastic elastomer, a styrene-based resin, a processing oil, and a filler. Based on 100 wt % of the resin composition, the content of the thermoplastic elastomer is 20 wt % to 55 wt %, the content of the styrene-based resin is 25 wt % to 55 wt %, the content of the processing oil is 6 wt % to 18 wt %, and the content of the filler is 5 wt % to 20 wt %. A printing material made by the resin composition has good adhesion with a substrate.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 5, 2020
    Assignee: Chi Mei Corporation
    Inventors: Kuan-Lin Hsieh, Chih-Wei Tsai
  • Patent number: 10429206
    Abstract: A counting device and a pedometer device is described. The counting device includes: a piezoelectric sensor generating a voltage signal when pressed; a rectifier receiving the voltage signal and rectifying the voltage signal to produce a trigger signal; a non-volatile counter receiving the trigger signal, and including a plurality of non-volatile D flip-flops counting according to the trigger signal and storing count data; a processing module reading the count data and using the count data to generate a counting value; and a wireless communication module transmitting the counting value to an external device. The counting device is powered with electrical energy of the voltage signal generated by the piezoelectric sensor.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: October 1, 2019
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventors: Hsi-Jung Tsai, Cheng-Chih Wang, Chih-Wei Tsai
  • Publication number: 20190010321
    Abstract: A resin composition and an application thereof are provided, wherein the resin composition includes a thermoplastic elastomer, a styrene-based resin, a processing oil, and a filler. Based on 100 wt % of the resin composition, the content of the thermoplastic elastomer is 20 wt % to 55 wt %, the content of the styrene-based resin is 25 wt % to 55 wt %, the content of the processing oil is 6 wt % to 18 wt %, and the content of the filler is 5 wt % to 20 wt %. A printing material made by the resin composition has good adhesion with a substrate.
    Type: Application
    Filed: May 24, 2018
    Publication date: January 10, 2019
    Applicant: Chi Mei Corporation
    Inventors: Kuan-Lin Hsieh, Chih-Wei Tsai
  • Patent number: 10020049
    Abstract: The present invention provides a six transistor static random-access memory (6T-SRAM) cell, the 6T-SRAM cell includes a first inverter comprising a first pull-up transistor and a first pull-down transistor, and a first storage node, a second inverter comprising a second pull-up transistor, a second pull-down transistor, and a second storage node, wherein the first storage node is coupled to gates of the second pull-up transistor and the second pull-down transistor, a switch transistor configured to couple the second storage node to gates of the first pull-up transistor and the first pull-down transistor, and an access transistor coupled to gates of the first pull-up transistor and the first pull-down transistor.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: July 10, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Yen Tseng, Ching-Cheng Lung, Yu-Tse Kuo, Chun-Hsien Huang, Chih-Wei Tsai
  • Publication number: 20180190344
    Abstract: The present invention provides a six transistor static random-access memory (6T-SRAM) cell, the 6T-SRAM cell includes a first inverter comprising a first pull-up transistor and a first pull-down transistor, and a first storage node, a second inverter comprising a second pull-up transistor, a second pull-down transistor, and a second storage node, wherein the first storage node is coupled to gates of the second pull-up transistor and the second pull-down transistor, a switch transistor configured to couple the second storage node to gates of the first pull-up transistor and the first pull-down transistor, and an access transistor coupled to gates of the first pull-up transistor and the first pull-down transistor.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 5, 2018
    Inventors: Chun-Yen Tseng, Ching-Cheng Lung, Yu-Tse Kuo, Chun-Hsien Huang, Chih-Wei Tsai
  • Publication number: 20180058880
    Abstract: A counting device and a pedometer device is described. The counting device includes: a piezoelectric sensor generating a voltage signal when pressed; a rectifier receiving the voltage signal and rectifying the voltage signal to produce a trigger signal; a non-volatile counter receiving the trigger signal, and including a plurality of non-volatile D flip-flops counting according to the trigger signal and storing count data; a processing module reading the count data and using the count data to generate a counting value; and a wireless communication module transmitting the counting value to an external device. The counting device is powered with electrical energy of the voltage signal generated by the piezoelectric sensor.
    Type: Application
    Filed: August 8, 2017
    Publication date: March 1, 2018
    Inventors: HSI-JUNG TSAI, CHENG-CHIH WANG, CHIH-WEI TSAI
  • Publication number: 20180011227
    Abstract: The instant disclosure provides a focusing method and a focusing apparatus. The focusing apparatus includes a lens device, an image capture device, a focal length adjustment device, and a control device. The lens device includes a liquid lens module and an optical lens module. The optical lens module is disposed corresponding to the liquid lens module. The image capturing device is disposed corresponding to the lens device. The focal length adjustment device is disposed on the optical lens module or the image capture device to drive the optical lens module or the image capture device and change the focal length of the optical lens module. The control device electrically connects the lens device, the image capture device, and the focal length adjustment device to control the focal length of the liquid lens module and the optical lens module.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 11, 2018
    Inventor: CHIH-WEI TSAI
  • Publication number: 20170064184
    Abstract: A focusing system and focusing method are provided. The focusing method includes the steps of: adjusting a focal length of a liquid lens unit of an auxiliary lens module to scan a focus distance of the auxiliary lens module, wherein the auxiliary lens module includes a plurality of focus sections, wherein the focus sections are focally scanned by the liquid lens unit; analyzing a plurality of image information respectively corresponding to the focus sections to determine a preferred focus section in which a sharpest image is captured; transmitting an information of the preferred focus section in which the sharpest image is captured to a main lens module; and adjusting a focus of the main lens module according to the information of the preferred focus section so that the main lens module is automatically focused within the preferred focus section.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 2, 2017
    Inventor: CHIH-WEI TSAI
  • Publication number: 20170038504
    Abstract: The instant disclosure provides a close-up shots module which corresponds to an image capture module of an electronic device to capture an object image. The close-up shots module has a liquid lens unit and a control unit. The control unit is electrically connected to the liquid lens unit. Wherein the control unit on the basis of a signal from the image capture module adjusts the focal length of the liquid lens unit. The instant disclosure also provides a close-up shots system.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 9, 2017
    Inventor: CHIH-WEI TSAI
  • Patent number: 9507658
    Abstract: A data reading method, a memory storage device and a memory controlling circuit unit are provided. The method includes: receiving a first read command; setting a plurality of first read events in a multi trigger queue (MTQ) according to the first read command, wherein the first read events include a general read event and at least one cache read event; sending a first read command sequence according to at least one of the first read events and receiving first data from a rewritable non-volatile memory module; and if a decoding for the first data fails, resetting the MTQ, and sending at least one second read command sequence according to at least one second read event in the reset MTQ, wherein the at least one second read event includes at least one of the at least one cache reading event.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: November 29, 2016
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Hong-Lipp Ko, Chih-Wei Tsai, Kheng-Joo Tan
  • Patent number: 9485407
    Abstract: A method of capturing images includes the following steps of: providing a camera module including an image capture unit, a liquid lens unit, and an image process unit; capturing a clear image through the camera module; enlarging the camera's relative aperture to create a shallow depth-of-field; adjusting the focal plane of the liquid lens unit to analyze object depth information in the clear image; and adding or storing the depth information of the object to the clear image.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: November 1, 2016
    Assignee: LUSTROUS ELECTRO-OPTIC CO., LTD.
    Inventor: Chih-Wei Tsai
  • Patent number: 9449209
    Abstract: A 3D-structured pattern reading system, including: an object having a front face formed with a 3D-structured pattern for representing predetermined data; and a reading device including a camera unit and a liquid lens unit, wherein the liquid lens unit has a variable focal length controlled by the camera unit to scan the 3D-structured pattern to derive the predetermined data with the object being placed at a distance not exceeding a maximum limit of the variable focal length from the liquid lens unit.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 20, 2016
    Assignees: LUSTROUS ELECTRO-OPTICS LTD., LUSTROUS TECHNOLOGY LTD.
    Inventors: Chia-Chi Liu, Chih-Wei Tsai
  • Patent number: 9430691
    Abstract: A fingerprint reading system includes a camera module, a control module, and a signal processing module. The camera module has a detection unit, an image capture unit, a liquid lens unit, and an illumination unit. Control module is electrically connected to camera module for controlling the internal components of camera module. When the detection unit detects a start signal, the control module activates the image capture unit, liquid lens unit, and illumination unit. The liquid lens unit adjusts the focus distance across an entire scanning region and scans fingerprint. The image capture unit adjusts the focus distance across the entire scanning region through the liquid lens unit and scans fingerprint to capture multiple photos. The signal processing module selects the sharpest photo from the multiple photos to convert to a fingerprint image.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 30, 2016
    Assignee: LUSTROUS ELECTRO-OPTIC CO., LTD.
    Inventor: Chih-Wei Tsai
  • Publication number: 20160155696
    Abstract: A method for manufacturing vias in a glass substrate includes bonding, through a bonding layer, a first face of the glass substrate including a plurality of holes to a first face of a glass carrier. The bonding layer has a thickness t between the first face of the glass substrate and the first face of the glass carrier and extends into at least some of the plurality of holes to a depth h from the first face of the glass substrate. The method includes etching back the bonding layer to a depth d through the plurality of holes in the glass substrate. The depth d is less than the sum of the thickness t and the depth h. The method can include filling the plurality of holes with an electrically conductive material, and de-bonding the glass substrate from the bonding layer and the glass carrier.
    Type: Application
    Filed: February 2, 2016
    Publication date: June 2, 2016
    Inventors: Chih-Wei Tsai, Bor Kai Wang