Patents by Inventor Li-Wei Cheng

Li-Wei Cheng 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: 20240146091
    Abstract: A vehicle power management system and a power management method thereof are provided. The power management method includes: determining, by a microcontroller, whether or not a voltage of an ignition-off signal is less than a voltage threshold when the microcontroller receives the ignition-off signal; stopping a vehicle power supply from charging a backup battery, and using the vehicle power supply to charge a back-end load; activating a counter of the microcontroller; stopping the vehicle power supply from charging the back-end load, and using the backup battery to charge the back-end load when a counting time of the counter reaches a first time threshold; sending, by the microcontroller, the ignition-off signal to the back-end load when the counting time of the counter reaches a second time threshold; and stopping the backup battery from charging the back-end load when the counting time of the counter reaches a third time threshold.
    Type: Application
    Filed: April 17, 2023
    Publication date: May 2, 2024
    Inventors: MING-ZONG WU, CHUN-KAI CHANG, LI-WEI CHENG
  • Patent number: 11974410
    Abstract: Aspects discussed herein include an electronic device and an associated connector interface. The electronic device comprises an enclosure that defines an internal volume, a plurality of external surfaces, and a recess from an external surface of the plurality of external surfaces. The recess has circumferential slot(s) extending to the external surface and that receive flange(s) of an external connector. The electronic device further comprises a connector interface connected with one or more electronic components disposed in the internal volume. The connector interface comprises first conductor(s) that are exposed at the recess. While the flange(s) are received in the circumferential slot(s), rotation of the external connector causes the flange(s) to slide within the circumferential slot(s) into a retained position, in which second conductor(s) of the external connector, having a fixed disposition relative to the flange(s), are connected to the first conductor(s).
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: April 30, 2024
    Assignee: Samsara, Inc.
    Inventors: Jennifer Lin, Christian Almer, Somasundara Pandian, Li-Wei Cheng, David Gal
  • Patent number: 11973005
    Abstract: A method includes bonding a first package and a second package over a package component, adhering a first Thermal Interface Material (TIM) and a second TIM over the first package and the second package, respectively, dispensing an adhesive feature on the package component, and placing a heat sink over and contacting the adhesive feature. The heat sink includes a portion over the first TIM and the second TIM. The adhesive feature is then cured.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: April 30, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yu-Hsun Wang, Ping-Yin Hsieh, Pu Wang, Li-Hui Cheng, Szu-Wei Lu
  • Publication number: 20240115410
    Abstract: An assistive device structure for positioning and pressure relief is provided, including a first elastic layer and a second elastic layer, which are attached by using a high-frequency encapsulation process, sealing, bagging, thermoforming, or an integrally molding process. Each of the first and second elastic layers has a bottom surface and an arc surface disposed opposite to each other. The arc surface includes two protrusions and a recess formed there in between. The two protrusions have different heights. A hollow area is disposed in the recess of the first and second elastic layers. Based on such structure, the bottom surfaces of the first and second elastic layers are attached to form the proposed assistive device structure for a user to lean against and providing multiple positioning effects and pressure relief. More than four axial directions of supporting forces are generated to effectively enhance muscle relaxation and stress relief.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 11, 2024
    Inventors: SY-WEN HORNG, LONG-YING CHENG, CHI-WEI HUNG, HSIANG-JUNG HUNG, LI-CHE HUNG
  • Patent number: 11942403
    Abstract: In an embodiment, a package includes: an interposer having a first side; a first integrated circuit device attached to the first side of the interposer; a second integrated circuit device attached to the first side of the interposer; an underfill disposed beneath the first integrated circuit device and the second integrated circuit device; and an encapsulant disposed around the first integrated circuit device and the second integrated circuit device, a first portion of the encapsulant extending through the underfill, the first portion of the encapsulant physically disposed between the first integrated circuit device and the second integrated circuit device, the first portion of the encapsulant being planar with edges of the underfill and edges of the first and second integrated circuit devices.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: March 26, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Chien Pan, Li-Hui Cheng, Chin-Fu Kao, Szu-Wei Lu
  • Publication number: 20240079399
    Abstract: A package structure and methods of forming a package structure are provided. The package structure includes a first die, a second die, a wall structure and an encapsulant. The second die is electrically bonded to the first die. The wall structure is located aside the second die and on the first die. The wall structure is in contact with the first die and a hole is defined within the wall structure for accommodating an optical element. The encapsulant laterally encapsulates the second die and the wall structure.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Chien Pan, Chin-Fu Kao, Li-Hui Cheng, Szu-Wei Lu
  • Patent number: 11923259
    Abstract: A package structure includes a package substrate, a first semiconductor package and a second semiconductor package, an underfill material, a gap filling structure and a heat dissipation structure. The first semiconductor package and the second semiconductor package are electrically bonded to the package substrate. The underfill material is disposed to fill a first space between the first semiconductor package and the package substrate and a second space between the second semiconductor package and the package substrate. The gap filling structure is disposed over the package substrate and in a first gap laterally between the first semiconductor package and the second semiconductor package. The heat dissipation structure is disposed on the package substrate and attached to the first semiconductor package and the second semiconductor package through a thermal conductive layer.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: March 5, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Pu Wang, Li-Hui Cheng, Szu-Wei Lu, Tsung-Fu Tsai
  • Publication number: 20240048906
    Abstract: An acoustic echo cancellation (AEC) system includes a loudspeaker interface coupled to a loudspeaker, a microphone interface coupled to a microphone, and a processor executing a model. The model is arranged to predict and generate a spectral magnitude mask (SMM) through a neural network according to a first microphone signal output by the loudspeaker and a second microphone signal output by the microphone, wherein a noisy speech signal is a sum of a clean speech signal and a noise signal; the SMM is a ratio of a spectral magnitude of an estimated speech signal and a spectral magnitude of the noisy speech signal; a true mask is a ratio of a spectral magnitude of the clean speech signal and the spectral magnitude of the noisy speech signal; and a loss function of the model is a mean square error between the SMM and the true mask.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 8, 2024
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: BOZHONG LIU, Xiaoxi Yu, HANTAO HUANG, Chia-Hsin Yang, Li-Wei Cheng
  • Publication number: 20240048905
    Abstract: An acoustic echo cancellation (AEC) system includes an adaptive filter, a subtraction circuit, and a processor executing a model. The adaptive filter is arranged to generate an estimated echo signal according to a first microphone signal played by a loudspeaker. The subtraction circuit is arranged to subtract the estimated echo signal from a signal that is output from a microphone receiving both of a speech signal and an echo signal, to generate a second microphone signal, wherein the first microphone signal is not output from the microphone, and the echo signal is transmitted from the loudspeaker to the microphone. The model is arranged to perform short-time Fourier transform upon the first microphone signal and the second microphone signal, respectively, and generate an estimated speech signal through a neural network according to a first transformed microphone signal and a second transformed microphone signal.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 8, 2024
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: BOZHONG LIU, Xiaoxi Yu, HANTAO HUANG, Chia-Hsin Yang, Li-Wei Cheng
  • Publication number: 20240046944
    Abstract: The acoustic echo cancellation (AEC) system includes a loudspeaker interface coupled to a loudspeaker, a microphone interface coupled to a microphone, and a processor executing a model. The model predicts and generates a spectral magnitude mask (SMM) through a neural network according to a first microphone signal output by the loudspeaker and a second microphone signal output by the microphone, wherein a noisy speech signal is a sum of a clean speech signal and a noise signal; the SMM is a ratio of a spectral magnitude of an estimated speech signal and a spectral magnitude of the noisy speech signal; a true mask is a ratio of a spectral magnitude of the clean speech signal and the spectral magnitude of the noisy speech signal; and the model applies a power function to a loss function of the model according to the true mask and a magnitude of the true mask.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 8, 2024
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: BOZHONG LIU, Xiaoxi Yu, HANTAO HUANG, Chia-Hsin Yang, Li-Wei Cheng
  • Publication number: 20230316992
    Abstract: A display and a dehumidification method thereof are disclosed. The method includes the following. An interval time from a previous dehumidification process is calculated, and the interval time is compared with a threshold time. When the interval time exceeds the threshold time, a first reminder window is displayed for a user to choose whether to perform a dehumidification process when the dehumidification process or booting is executed automatically in a shutdown state. It is determined whether to limit a brightness of a display panel of the display according to a selecting operation with regard to the dehumidification process.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: ViewSonic International Corporation
    Inventors: Jia-Shin Tsai, Li wei Cheng, Shun-Chang Chen
  • Publication number: 20230282197
    Abstract: A device operates to perform acoustic echo cancellation. The device includes a speaker to output a far-end signal at the device, a microphone to receive at least a near-end signal and the far-end signal from the speaker to produce a microphone output, and an AI accelerator operative to perform neural network operations according to a first neural network model and a second neural network model to output an echo-suppressed signal. The device further includes a digital signal processing (DSP) unit. The DSP unit is operative to perform adaptive filtering to remove at least a portion of the far-end signal from the microphone output to generate a filtered near-end signal, and perform Fast Fourier Transform (FFT) and inverse FFT (IFFT) to generate input to the first neural network model and the second neural network model, respectively.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 7, 2023
    Inventors: Xiaoxi Yu, Hantao Huang, Ziang Yang, Chia Hsin Yang, Li-Wei Cheng
  • Patent number: 11464450
    Abstract: A fixed-sensor finger action detecting glove has a glove body, five covering sheets, five fixing bases, five sensors, and five fixing assemblies. A side of the glove body forms a hand back section and five finger back sections. The covering sheet is mounted on the finger back section and forms a passage. The fixing base is made from a flexible material, is mounted through the passage, and has two limiting walls. The sensor is located in the passage between the two limiting walls, preventing the sensor from deviating. The fixing assembly is mounted between an end of the sensor and an end of the finger back section, detachably connects the sensor and the finger back section, and prevents the sensor from moving back and forth. Thus, the fixed-sensor finger action detecting glove is capable of detecting actions of the fingers precisely.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 11, 2022
    Assignee: REHABOTICS MEDICAL TECHNOLOGY CORP.
    Inventors: Jian-Jia Huang, Shu-Wei Pu, Tsung-Fu Liu, Pin-Tseng Liu, Li-Wei Cheng
  • Patent number: 10784741
    Abstract: A cooling structure for rotary electric machine is provided. The cooling structure for rotary electric machine comprises a sleeve, a plurality of dividers, a plurality of first walls and a plurality of second walls. The sleeve comprises an annular surface of a first half annular surface and a second half annular surface. The dividers are configured on the annular surface of the sleeve in parallel to provide multiple channels. The first walls are configured on the first half annular surface and between multiple corresponding dividers to provide multiple first division regions. The second walls are configured on the second half annular surface and between multiple corresponding dividers to provide multiple first division regions wherein the first division regions are asymmetric to the second division regions.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 22, 2020
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Chen-An Li, Ruei-Bin Hsiao, Li-Wei Cheng
  • Publication number: 20200067374
    Abstract: A cooling structure for rotary electric machine is provided. The cooling structure for rotary electric machine comprises a sleeve and a plurality of dividers. The sleeve comprises an annular surface of a first half annular surface and a second half annular surface. The major dividers are configured on the annular surface of the sleeve in parallel to provide multiple major channels wherein each major divider comprises a major notch. The neighboring major dividers comprise two major notches configured on the first half annular surface and the second half annular surface respectively.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Chen-An LI, Ruei-Bin HSIAO, Li-Wei CHENG
  • Publication number: 20200067375
    Abstract: A cooling structure for rotary electric machine is provided. The cooling structure for rotary electric machine comprises a sleeve, a plurality of dividers, a plurality of first walls and a plurality of second walls. The sleeve comprises an annular surface of a first half annular surface and a second half annular surface. The dividers are configured on the annular surface of the sleeve in parallel to provide multiple channels. The first walls are configured on the first half annular surface and between multiple corresponding dividers to provide multiple first division regions. The second walls are configured on the second half annular surface and between multiple corresponding dividers to provide multiple first division regions wherein the first division regions are asymmetric to the second division regions.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Chen-An LI, Ruei-Bin HSIAO, Li-Wei CHENG
  • Publication number: 20190209086
    Abstract: A fixed-sensor finger action detecting glove has a glove body, five covering sheets, five fixing bases, five sensors, and five fixing assemblies. A side of the glove body forms a hand back section and five finger back sections. The covering sheet is mounted on the finger back section and forms a passage. The fixing base is made from a flexible material, is mounted through the passage, and has two limiting walls. The sensor is located in the passage between the two limiting walls, preventing the sensor from deviating. The fixing assembly is mounted between an end of the sensor and an end of the finger back section, detachably connects the sensor and the finger back section, and prevents the sensor from moving back and forth. Thus, the fixed-sensor finger action detecting glove is capable of detecting actions of the fingers precisely.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 11, 2019
    Applicant: REHABOTICS MEDICAL TECHNOLOGY CORP.
    Inventors: Jian-Jia HUANG, Shu-Wei PU, Tsung-Fu LIU, Pin-Tseng LIU, Li-Wei CHENG
  • Publication number: 20190044397
    Abstract: A stator for the rotary electric machine including an outer yoke, an inner yoke and a plurality of coils is provided. The inner yoke is coaxially held within the outer yoke, and includes a plurality of teeth and a plurality of slots. The teeth are extending from the center of the stator radially and alternately. The slots are configured between the neighboring teeth. The coils are wound on the teeth respectively to provide a gap between the neighboring coils wherein the gap comprises a gap area equal to or less than 20% of a slot area. Therefore, the stator for the rotary electric machine provides higher torque and the motor efficiency by increasing the coil area factor.
    Type: Application
    Filed: August 5, 2017
    Publication date: February 7, 2019
    Inventors: Tzer-Wei LAI, Kun-Mao HE, Li-Wei CHENG
  • Patent number: 9559736
    Abstract: An active noise control system and associated auto-selection method for modeling a secondary path for the active noise control system are provided. The method includes the steps of: receiving a reference signal; filtering the reference signal with a secondary-path estimation filter to obtain a filtered reference signal, wherein the secondary path estimation filter is determined from a plurality of candidate secondary-path estimation filters; filtering the reference signal with an adaptive filter to provide a compensation signal; sensing a residual noise signal at a listening position of the active noise control system; and adapting filter coefficients of the adaptive filter according to the residual noise signal and the filtered reference signal.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 31, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chao-Ling Hsu, Li-Wei Cheng, Chieh-Cheng Cheng, Yiou-Wen Cheng, Chih-Ping Lin
  • Patent number: D1019739
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: March 26, 2024
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Chen-Hsien Cheng, Li-Fang Chen, Ruei-Hong Hong, Ting-Wei Wu