Patents by Inventor Wei-Chen Wu

Wei-Chen Wu 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: 11100964
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 24, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • Publication number: 20210215918
    Abstract: A freeform surface off-axial three-mirror imaging system is provided. The freeform surface off-axial three-mirror imaging system comprises a primary mirror, a secondary mirror, and a compensating mirror. The primary mirror, the secondary mirror, and the compensating mirror are located adjacent and spaced away from each other. A surface shape of each of the primary mirror and the secondary mirror is a quadric surface. The primary mirror is used as an aperture stop. A surface shape of the compensating mirror is a freeform surface. A light emitted from a light source is reflected by the primary mirror, the secondary mirror, and the compensating mirror to form an image on an image plane.
    Type: Application
    Filed: August 21, 2020
    Publication date: July 15, 2021
    Inventors: JUN ZHU, Rui-rui Tang, WEI-CHEN WU, GUO-FAN JIN, SHOU-SHAN FAN
  • Publication number: 20210215924
    Abstract: A freeform surface optical telescope imaging system is provided. The freeform surface optical telescope imaging system comprises a primary mirror, a secondary mirror, a compensating minor, and a spherical mirror. The primary minor, the secondary minor, the compensating minor, and the spherical mirror are spaced from each other. A surface shape of each of the primary mirror and the secondary mirror is a quadric surface. The primary mirror is used as an aperture stop. A surface shape of the compensating mirror is a freeform surface. A surface shape of the spherical mirror is a spherical surface. A light emitted from a light source would be reflected by the primary mirror, the secondary minor, the compensating mirror, and the spherical mirror to form an image on an image plane.
    Type: Application
    Filed: August 21, 2020
    Publication date: July 15, 2021
    Inventors: JUN ZHU, Rui-rui Tang, WEI-CHEN WU, GUO-FAN JIN, SHOU-SHAN FAN
  • Patent number: 11025841
    Abstract: The present invention relates to a method for designing a freeform surface reflective imaging system, comprising: selecting an initial system, wherein an FOV of the initial system is X0×Y0; selecting an FOV sequence as [X0, Y0], [X1, Y1], [X2, Y2], . . . , [Xn, Yn], while the FOV of the system to be designed is Xn×Yn, and X0<X1<X2< . . . <Xn, Y0<Y1<Y2< . . . <Yn; using point-by-point methods to construct all freeform surfaces of the initial system in the FOV of X1×Y1; setting the system obtained in the last step as a second initial system for system construction in the FOV of X2×Y2; repeating the last step to execute system construction in the order of the FOV sequence until the final FOV Xn×Yn is obtained.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: June 1, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chen Wu, Jun Zhu, Guo-Fan Jin, Shou-Shan Fan
  • Publication number: 20210118125
    Abstract: A hot spot defect detecting method and a hot spot defect detecting system are provided. In the method, hot spots are extracted from a design of a semiconductor product to define a hot spot map comprising hot spot groups, wherein local patterns in a same context of the design yielding a same image content are defined as a same hot spot group. During runtime, defect images obtained by an inspection tool performing hot scans on a wafer manufactured with the design are acquired and the hot spot map is aligned to each defect image to locate the hot spot groups. The hot spot defects in each defect image are detected by dynamically mapping the hot spot groups located in each defect image to a plurality of threshold regions and respectively performing automatic thresholding on pixel values of the hot spots of each hot spot group in the corresponding threshold region.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 22, 2021
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chien-Huei Chen, Pei-Chao Su, Xiaomeng Chen, Chan-Ming Chang, Shih-Yung Chen, Hung-Yi Chung, Kuang-Shing Chen, Li-Jou Lee, Yung-Cheng Lin, Wei-Chen Wu, Shih-Chang Wang, Chien-An Lin
  • Publication number: 20210037199
    Abstract: The present invention relates to a method for designing a freeform surface reflective imaging system, comprising: selecting an initial system, wherein an FOV of the initial system is X0×Y0; selecting an FOV sequence as [X0, Y0], [X1, Y1], [X2, Y2], . . . , [Xn, Yn], while the FOV of the system to be designed is Xn×Yn, and X0<X1<X2< . . . <Xn, Y0<Y1<Y2< . . . <Yn; using point-by-point methods to construct all freeform surfaces of the initial system in the FOV of X1×Y1; setting the system obtained in the last step as a second initial system for system construction in the FOV of X2×Y2; repeating the last step to execute system construction in the order of the FOV sequence until the final FOV Xn×Yn is obtained.
    Type: Application
    Filed: June 24, 2020
    Publication date: February 4, 2021
    Inventors: WEI-CHEN WU, JUN ZHU, GUO-FAN JIN, SHOU-SHAN FAN
  • Publication number: 20210033469
    Abstract: The present invention relates to a freeform surface reflective infrared imaging system comprising a primary mirror, a secondary mirror, a tertiary mirror, and an infrared light detector. Each reflective surface of the primary mirror, the secondary mirror, and the tertiary mirror is an xy polynomial freeform surface. A field of view of the freeform surface reflective infrared imaging system is larger than or equal to 40°×30°. An F-number of the freeform surface reflective infrared imaging system is less than or equal to 1.39.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 4, 2021
    Inventors: WEI-CHEN WU, JUN ZHU, GUO-FAN JIN, SHOU-SHAN FAN
  • Patent number: 10872406
    Abstract: A hot spot defect detecting method and a hot spot defect detecting system are provided. In the method, hot spots are extracted from a design of a semiconductor product to define a hot spot map comprising hot spot groups, wherein local patterns in a same context of the design yielding a same image content are defined as a same hot spot group. During runtime, defect images obtained by an inspection tool performing hot scans on a wafer manufactured with the design are acquired and the hot spot map is aligned to each defect image to locate the hot spot groups. The hot spot defects in each defect image are detected by dynamically mapping the hot spot groups located in each defect image to a plurality of threshold regions and respectively performing automatic thresholding on pixel values of the hot spots of each hot spot group in the corresponding threshold region.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 22, 2020
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chien-Huei Chen, Pei-Chao Su, Xiaomeng Chen, Chan-Ming Chang, Shih-Yung Chen, Hung-Yi Chung, Kuang-Shing Chen, Li-Jou Lee, Yung-Cheng Lin, Wei-Chen Wu, Shih-Chang Wang, Chien-An Lin
  • Publication number: 20190318471
    Abstract: A hot spot defect detecting method and a hot spot defect detecting system are provided. In the method, hot spots are extracted from a design of a semiconductor product to define a hot spot map comprising hot spot groups, wherein local patterns in a same context of the design yielding a same image content are defined as a same hot spot group. During runtime, defect images obtained by an inspection tool performing hot scans on a wafer manufactured with the design are acquired and the hot spot map is aligned to each defect image to locate the hot spot groups. The hot spot defects in each defect image are detected by dynamically mapping the hot spot groups located in each defect image to a plurality of threshold regions and respectively performing automatic thresholding on pixel values of the hot spots of each hot spot group in the corresponding threshold region.
    Type: Application
    Filed: August 29, 2018
    Publication date: October 17, 2019
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chien-Huei Chen, Pei-Chao Su, Xiaomeng Chen, Chan-Ming Chang, Shih-Yung Chen, Hung-Yi Chung, Kuang-Shing Chen, Li-Jou Lee, Yung-Cheng Lin, Wei-Chen Wu, Shih-Chang Wang, Chien-An Lin
  • Patent number: 10143988
    Abstract: The disclosure provides methods of synthesizing non-spherical nanostructures. One embodiment has steps of providing a solution of nanoparticles (NPs) wherein each of the NPs comprises a non-spherical NP that includes gold and a surfactant coating covering the non-spherical NP; mixing the NPs and a pH modifier solution making a pH-modified solution of NPs having a pH within a predefined pH range; and adding a silica precursor solution to the solution of nanoparticles at a constant rate for at least one (1) minute to provide a homogeneous silica solution of NPs. Another embodiment has steps of providing a solution of NPs wherein each of the NPs comprises a non-spherical NP that includes gold and a surfactant coating covering the non-spherical NP; and adding a silica precursor solution to the solution of nanoparticles at a constant rate for at least one (1) minute to provide a homogeneous silica solution of NPs.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: December 4, 2018
    Assignee: North Carolina State University
    Inventors: Joseph B. Tracy, Wei-Chen Wu, Brian S. Chapman, Laurel R. Rowe
  • Publication number: 20170196742
    Abstract: A wheelchair power-assisted wheel is arranged on a wheelchair. The wheelchair power-assisted wheel includes a substrate axially connected with the wheelchair. A power-driven wheel is arranged on a lower surface of a front part of the substrate and touches the ground. A power provider is arranged on an upper surface of a back part of the substrate and electrically connected with the power-driven wheel and provides power to the power-driven wheel whereby the power-driven wheel moves against the ground. The present invention is convenient for a sitter to move on a rough road or to move uphill. The power-driven wheel of the wheelchair power-assisted wheel moves against the ground without idling, so as to improve driving efficiency, which is more helpful in moving the sitter.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 13, 2017
    Inventor: WEI-CHEN WU
  • Publication number: 20170189249
    Abstract: A wheelchair control system and a control method using the same is provided. Firstly, providing a wheelchair which has a back provided with a first sensor and at least one second sensor arranged above the first sensor. The first sensor and the second sensor are electrically connected with a control device. A sitter sits in the wheelchair to trigger the first sensor and the second sensor, whereby the control device controls the wheelchair to operate. When the first sensor and the second sensor are triggered or non-triggered, the control device controls the wheelchair to stop or operate. The present invention controls the wheelchair to operate by changing the posture of the sitter, improves the conventional wheelchair to move by another person, and provides an automatic wheelchair for a sitter with upper limbs that inconveniently move. The sitter only moves his back to control the wheelchair to operate.
    Type: Application
    Filed: March 4, 2016
    Publication date: July 6, 2017
    Inventor: WEI-CHEN WU
  • Publication number: 20160325257
    Abstract: The disclosure provides methods of synthesizing non-spherical nanostructures. One embodiment has steps of providing a solution of nanoparticles (NPs) wherein each of the NPs comprises a non-spherical NP that includes gold and a surfactant coating covering the non-spherical NP; mixing the NPs and a pH modifier solution making a pH-modified solution of NPs having a pH within a predefined pH range; and adding a silica precursor solution to the solution of nanoparticles at a constant rate for at least one (1) minute to provide a homogeneous silica solution of NPs. Another embodiment has steps of providing a solution of NPs wherein each of the NPs comprises a non-spherical NP that includes gold and a surfactant coating covering the non-spherical NP; and adding a silica precursor solution to the solution of nanoparticles at a constant rate for at least one (1) minute to provide a homogeneous silica solution of NPs.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 10, 2016
    Inventors: Joseph B. Tracy, Wei-Chen Wu, Brian S. Chapman, Laurel R. Rowe
  • Publication number: 20140252857
    Abstract: A smart home control system is provided. The smart home control system includes a first sensing unit, a control unit and a control center. The first sensing unit is electrically connected to a first electronic device. The first sensing unit senses a first state within a first region. The control unit is electrically connected to the first sensing unit. The control unit generates a sensing signal according to the first state. The control center is connected to a cloud system. The control center receives the sensing signal, and generates a control signal via the cloud system and transmits the control signal to the control unit. The control unit controls the first electronic device to be turned on or turned off according to the control signal.
    Type: Application
    Filed: February 20, 2014
    Publication date: September 11, 2014
    Applicant: ASUSTeK COMPUTER INC.
    Inventors: Wei-Chen WU, Li-Ru LAI
  • Patent number: 7560900
    Abstract: A rechargeable lithium battery protection device uses an external circuit to control charging or discharging a rechargeable lithium battery for preventing an overcharge or an overdischarge of the battery. The rechargeable lithium battery protection device includes a diagnostic circuit, a light coupling circuit, a balance circuit, and an identifier circuit. The battery diagnostic circuit checks the voltage of the chargeable battery and outputs a detect signal, and then the balance circuit determines whether or not the detect signal is an overcharge signal and discharges the battery. Meanwhile, the light coupling circuit adjusts an impedance of the light coupling circuit according to the detect signal for disconnecting the battery from the external circuit and the identifier circuit provides the position of a battery that sends out the signal.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: July 14, 2009
    Assignee: Amita Technologies Inc. Ltd.
    Inventors: Jing-Yih Cherng, Wei-Chen Wu, Steven Hou, Samual Chen
  • Publication number: 20070285062
    Abstract: A lithium-ion battery protection method and device controls an externally connected circuit to charge/discharge a rechargeable battery so as to prevent the rechargeable battery from over charging/discharging. The lithium-ion-ion battery protection device includes an abnormality detection circuit, a light coupling circuit, a balancing circuit, and a recognition circuit. The abnormality detection circuit is to detect the voltage of the lithium-ion-ion battery and output a detection signal. The battery continues to charge/discharge if the signal is normal, and terminate to charge/discharge if the signal is abnormal. Then, the balancing circuit determines whether the detection signal is an overcharged signal, and if yes, the rechargeable battery is discharged accordingly.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 13, 2007
    Inventors: Jing-Yih Cherng, Wei-Chen Wu, Steven Hou
  • Publication number: 20070152637
    Abstract: A rechargeable lithium battery protection device uses an external circuit to control charging or discharging a rechargeable lithium battery for preventing an overcharge or an overdischarge of the battery. The rechargeable lithium battery protection device includes a diagnostic circuit, a light coupling circuit, a balance circuit, and an identifier circuit. The battery diagnostic circuit checks the voltage of the chargeable battery and outputs a detect signal, and then the balance circuit determines whether or not the detect signal is an overcharge signal and discharges the battery. Meanwhile, the light coupling circuit adjusts an impedance of the light coupling circuit according to the detect signal for disconnecting the battery from the external circuit and the identifier circuit provides the position of a battery that sends out the signal.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Inventors: Jing-Yin Cherng, Wei-Chen Wu, Steven Hou, Samual Chen
  • Publication number: 20060232245
    Abstract: A protection device for a rechargeable battery connected between a main current source and a large amperage power source, the protection device includes: a first protection loop which has: a main current load and a battery (set) connected to a main circuit; and a thermocouple sensing switch connected to the battery (set) and the main circuit; a second protection loop which has: a protection circuit connected to the main circuit and checking voltage of the battery to output an activation signal; and a heater next to the thermocouple sensing switch. When the battery is in over-charged or over-discharged condition, the protection circuit outputs a control signal to turn on the semiconductor switch and the thermocouple sensing switch related to the heater.
    Type: Application
    Filed: April 15, 2005
    Publication date: October 19, 2006
    Inventors: Jing-Yih Cherng, Wei-Chen Wu, Chen-Chin Chang
  • Patent number: 6373152
    Abstract: An electricity storage device and a portable electric-powered tool. The device comprises at least a battery; at least a super capacitor, which has lower internal impedance, when fully charged, than that of the battery and connects the battery in parallel; and an output end for supplying the electricity. The super capacitor is the major power supply for the pulse current output; the battery is used for generating electricity to the super capacitor and is the secondary power supply for the pulse current output. The connection of the battery and the super capacitor does not need any converters or current-limiting resistors.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: April 16, 2002
    Assignee: Synergy Scientech Corp.
    Inventors: Pei-Jen Wang, Shun-Ming Huang, Wei-Chen Wu