Patents by Inventor Ling Lu

Ling Lu 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: 20250131940
    Abstract: A data-driven audio codec system that involves producing multiple compressed streams comprising encoded information (e.g., codeword indices) at different time scales (time intervals or frequency). This may allow for separation of different properties of speech, such as content and aspects of style (prosody), into the different compressed streams without explicitly enforcing it, i.e., in an unsupervised manner. Speech audio is encoded to produce a plurality of encoded streams comprising encoded information for the speech audio at different time scales. The plurality of encoded streams are decoded to generate output audio.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 24, 2025
    Inventors: Rafal Pilarczyk, Amir Salah Abdelsamie Abdelwahed, Hui-Ling Lu, Ivana Balic, Yusuf Ziya Isik, David Guoqing Zhang, Xuehong Mao, Samer Lutfi Hijazi
  • Publication number: 20250098187
    Abstract: A memory cell structure includes a transistor structure and a capacitor structure, where the capacitor structure includes a hydrogen absorption layer. The hydrogen absorption layer absorbs hydrogen, which prevents or reduces the likelihood of the hydrogen diffusing into an underlying metal-oxide channel of the transistor structure. In this way, the hydrogen absorption layer minimizes and/or reduces the likelihood of hydrogen contamination in the metal-oxide channel, which may enable a low current leakage to be achieved for the memory cell structure and reduces the likelihood of data corruption and/or failure of the memory cell structure, among other examples.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 20, 2025
    Inventors: Yu-Chien CHIU, Chen-Han CHOU, Ya-Yun CHENG, Ya-Chun CHANG, Wen-Ling LU, Yu-Kai CHANG, Pei-Chun LIAO, Chung-Wei WU
  • Publication number: 20250070768
    Abstract: A method controls the duty cycle distortion of clock signals. An electronic device obtains an input clock signal and generates a first output voltage and a second output voltage from the input clock signal. The first output voltage has a first direct current (DC) voltage level indicating, in real time, a first duty cycle length of high voltage duty cycles of the input clock signal. The second output voltage has a second DC voltage level indicating, in real time, a second duty cycle length of low voltage duty cycles of the input clock signal. The difference between the first and second DC voltage levels corresponds to the duty cycle distortion level of the input clock signal. A duty cycle control signal is generated based on the difference between the first and second DC voltage levels to control the high voltage duty cycles of the input clock signal.
    Type: Application
    Filed: November 5, 2024
    Publication date: February 27, 2025
    Inventors: YingFan LEE, Zhih-Ling LU, Andrew LEE, Xin JIN
  • Patent number: 12166490
    Abstract: A method controls duty cycle distortion of clock signals. An electronic device obtains an input clock signal having a first frequency and a sampling clock signal having a second frequency that is lower than the first frequency. The sampling clock signal has a random noise distribution. The sampling clock signal is applied to sample high voltage duty cycles and low voltage duty cycles of the input clock signal for a duration of time to obtain a sampling result. The electronic device determines a duty cycle distortion level of the input clock signal in the duration of time based on the sampling result. A duty cycle control signal is generated based on the duty cycle distortion level to control the high voltage duty cycles of the input clock signal.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: December 10, 2024
    Assignee: PARADE TECHNOLOGIES, LTD.
    Inventors: YingFan Lee, Zhih-Ling Lu, Andrew Lee, Xin Jin
  • Publication number: 20240404077
    Abstract: The present invention relates to unsupervised tracking technology, specifically an unsupervised tracking model training strategy based on contrastive loss. The method comprises: S1: forming a constrained SSCI module using the relation between objects within a video frame and between adjacent video frames; S2: setting features of different objects in each frame as negative samples, and similar adjacent frame objects as positive sample pairs, constructing contrastive loss; S3: constraining embedded features (E_t) by variable loss based on self-supervised contrastive loss. This invention provides a contrastive loss-based training strategy for unsupervised multi-object tracking, leveraging the prior that objects in a frame must be different to enhance object similarity, and using self-supervised learning to match similar objects in short-interval frames as positive samples to boost cross-frame feature expression.
    Type: Application
    Filed: May 30, 2024
    Publication date: December 5, 2024
    Applicant: CHONGQING UNIVERSITY OF TECHNOLOGY
    Inventors: Xin FENG, Ling LU, Yumei SHAN, Di MING, Fang YUE, Wu YANG, Jianwu LONG
  • Publication number: 20240297271
    Abstract: A light emitting diode epitaxial structure and a light emitting diode are provided. The light emitting diode epitaxial structure includes a substrate, and an N-type semiconductor layer, an intermediate layer, a multi-quantum well layer and a P-type semiconductor layer which are sequentially arranged on the substrate, wherein the intermediate layer is doped with a n-type impurity, and a doping concentration of the n-type impurity is ?4×1018 atoms/cm3. In a specific implementation of the present disclosure, the n-type impurity is Si, and the intermediate layer is a GaN layer doped with Si.
    Type: Application
    Filed: October 24, 2023
    Publication date: September 5, 2024
    Inventors: Tao Zhu, Changwei Song, Ling Lu
  • Patent number: 12048164
    Abstract: A memory array and an operation method of the memory array are provided. The memory array includes first and second ferroelectric memory devices formed along a gate electrode, a channel layer and a ferroelectric layer between the gate electrode and the channel layer. The ferroelectric memory devices include: a common source/drain electrode and two respective source/drain electrodes, separately in contact with a side of the channel layer opposite to the ferroelectric layer, wherein the common source/drain electrode is disposed between the respective source/drain electrodes; and first and second auxiliary gates, capacitively coupled to the channel layer, wherein the first auxiliary gate is located between the common source/drain electrode and one of the respective source/drain electrodes, and the second auxiliary gate is located between the common source/drain electrode and the other respective source/drain electrode.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: July 23, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Ling Lu, Chen-Jun Wu, Ya-Yun Cheng, Sheng-Chih Lai, Yi-Ching Liu, Yu-Ming Lin, Feng-Cheng Yang, Chung-Te Lin
  • Publication number: 20240223171
    Abstract: A method controls duty cycle distortion of clock signals. An electronic device obtains an input clock signal having a first frequency and a sampling clock signal having a second frequency that is lower than the first frequency. The sampling clock signal has a random noise distribution. The sampling clock signal is applied to sample high voltage duty cycles and low voltage duty cycles of the input clock signal for a duration of time to obtain a sampling result. The electronic device determines a duty cycle distortion level of the input clock signal in the duration of time based on the sampling result. A duty cycle control signal is generated based on the duty cycle distortion level to control the high voltage duty cycles of the input clock signal.
    Type: Application
    Filed: December 30, 2022
    Publication date: July 4, 2024
    Inventors: YingFan LEE, Zhih-Ling LU, Andrew LEE, Xin JIN
  • Patent number: 12003241
    Abstract: Controlling Duty Cycle Distortion with a Mixed-Signal Circuit A method controls the duty cycle distortion of clock signals. An electronic device obtains an input clock signal and generates a first output voltage and a second output voltage from the input clock signal. The first output voltage has a first direct current (DC) voltage level indicating, in real time, a first duty cycle length of high voltage duty cycles of the input clock signal. The second output voltage has a second DC voltage level indicating, in real time, a second duty cycle length of low voltage duty cycles of the input clock signal. The difference between the first and second DC voltage levels corresponds to the duty cycle distortion level of the input clock signal. A duty cycle control signal is generated based on the difference between the first and second DC voltage levels to control the high voltage duty cycles of the input clock signal.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: June 4, 2024
    Assignee: PARADE TECHNOLOGIES, LTD.
    Inventors: YingFan Lee, Zhih-Ling Lu, Andrew Lee, Xin Jin
  • Publication number: 20240113234
    Abstract: An integrated chip including a gate layer. An insulator layer is over the gate layer. A channel structure is over the insulator layer. A pair of source/drains are over the channel structure and laterally spaced apart by a dielectric layer. The channel structure includes a first channel layer between the insulator layer and the pair of source/drains, a second channel layer between the insulator layer and the dielectric layer, and a third channel layer between the second channel layer and the dielectric layer. The first channel layer, the second channel layer, and the third channel layer include different semiconductors.
    Type: Application
    Filed: January 4, 2023
    Publication date: April 4, 2024
    Inventors: Ya-Yun Cheng, Wen-Ling Lu, Yu-Chien Chiu, Chung-Wei Wu, Zhiqiang Wu
  • Publication number: 20240090230
    Abstract: A memory array and an operation method of the memory array are provided. The memory array includes first and second ferroelectric memory devices formed along a gate electrode, a channel layer and a ferroelectric layer between the gate electrode and the channel layer. The ferroelectric memory devices include: a common source/drain electrode and two respective source/drain electrodes, separately in contact with a side of the channel layer opposite to the ferroelectric layer, wherein the common source/drain electrode is disposed between the respective source/drain electrodes; and first and second auxiliary gates, capacitively coupled to the channel layer, wherein the first auxiliary gate is located between the common source/drain electrode and one of the respective source/drain electrodes, and the second auxiliary gate is located between the common source/drain electrode and the other respective source/drain electrode.
    Type: Application
    Filed: January 9, 2023
    Publication date: March 14, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Ling Lu, Chen-Jun Wu, Ya-Yun Cheng, Sheng-Chih Lai, Yi-Ching Liu, Yu-Ming Lin, Feng-Cheng Yang, Chung-Te Lin
  • Patent number: 11900677
    Abstract: Presented herein are systems and methods for generating a multi-view focused video stream. The methods involve obtaining at least one video stream of a first participant in an online video communication session between at least the first participant at a first endpoint and a second participant at a second endpoint; determining a bounding region of at least one element in the video stream; generating a focused video stream from the video stream that includes a focused view of the at least one element within the bounding region; and presenting the focused video stream on the second endpoint to at least the second participant.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: February 13, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Hui-Ling Lu, Raul Alejandro Casas
  • Publication number: 20230422513
    Abstract: Various embodiments of the present disclosure provide a memory device and methods of forming the same. In one embodiment, a memory device is provided. The memory device includes a gate electrode disposed in an insulating material layer, a ferroelectric dielectric layer disposed over the gate electrode, a metal oxide semiconductor layer disposed over the ferroelectric dielectric layer, a source feature disposed over the metal oxide semiconductor layer, wherein the source feature has a first dimension, and a source extension. The source extension includes a first portion disposed over the source feature, wherein the first portion has a second dimension that is greater than the first dimension. The source extension also includes a second portion extending downwardly from the first portion to an elevation that is lower than a top surface of the source feature.
    Type: Application
    Filed: June 25, 2022
    Publication date: December 28, 2023
    Inventors: Hung-Wei LI, Sai-Hooi YEONG, Chia-Ta YU, Chih-Yu CHANG, Wen-Ling LU, Yu-Chien CHIU, Ya-Yun CHENG, Mauricio MANFRINI, Yu-Ming LIN
  • Publication number: 20230413571
    Abstract: Various embodiments of the present disclosure provide a memory device and methods of forming the same. In one embodiment, a memory device is provided. The memory device includes a first oxide material having a first sidewall and a second sidewall, a first spacer layer in contact with the first sidewall of the first oxide material, the first spacer layer having a first conductivity type, a second spacer layer in contact with the second sidewall of the first oxide material, wherein the second spacer layer has the first conductivity type. The memory device also includes a channel layer having a second conductivity type that is opposite to the first conductivity type, wherein the channel layer is in contact with the first oxide material, the first spacer layer, and the second spacer layer. The memory device further includes a ferroelectric layer in contact with the channel layer.
    Type: Application
    Filed: June 15, 2022
    Publication date: December 21, 2023
    Inventors: Wen-Ling LU, Yu-Chien CHIU, Chih-Yu CHANG, Hung-Wei LI, Ya-Yun CHENG, Zhiqiang WU, Yu-Ming LIN, Mauricio MANFRINI
  • Publication number: 20230395450
    Abstract: A disclosed semiconductor structure may include an interposer, a first semiconductor die electrically coupled to the interposer, a packaging substrate electrically coupled to the interposer, and a capping layer covering one or more of a first surface of the first semiconductor die and a second surface of the packaging substrate. The capping layer may be formed over respective surfaces of each of the first semiconductor die and the packaging substrate. In certain embodiments, the capping layer may be formed only on the first surface of the first semiconductor die and not formed over the package substrate. In further embodiments, the semiconductor structure may include a second semiconductor die, such that the capping layer covers a surface of only one of the first semiconductor die and the second semiconductor die. The semiconductor structure may include a molding compound die frame that is partially or completely covered by the capping layer.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 7, 2023
    Inventors: Jing-Ye Juang, Hsien-Wei Chen, Chia-Ling Lu, Shin-Puu Jeng
  • Publication number: 20230335679
    Abstract: Provided are a light-emitting diode and a semiconductor device.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 19, 2023
    Inventors: Changwei Song, Licheng Huang, Yuan Guo, Wang Zhan, Chih-Ching Cheng, Ling Lu
  • Publication number: 20230274544
    Abstract: Presented herein are systems and methods for generating a multi-view focused video stream. The methods involve obtaining at least one video stream of a first participant in an online video communication session between at least the first participant at a first endpoint and a second participant at a second endpoint; determining a bounding region of at least one element in the video stream; generating a focused video stream from the video stream that includes a focused view of the at least one element within the bounding region; and presenting the focused video stream on the second endpoint to at least the second participant.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 31, 2023
    Inventors: Hui-Ling Lu, Raul Alejandro Casas
  • Publication number: 20230262986
    Abstract: A ferroelectric memory device includes a semiconductor structure, a stack structure disposed on the semiconductor structure and including multiple dielectric layers and multiple conductive layers that are alternatingly stacked, and multiple memory arrays extending through the stack structure. Each of the memory arrays includes two spaced-apart memory segments connecting to the stack structure, multiple spaced-apart channel portions each being connected to a corresponding one of the memory segments, and multiple pairs of source/bit lines that are spaced apart from each other. Each of the pairs of the source/bit lines is connected between corresponding two of the channel portions. The ferroelectric memory device further includes multiple carrier structures each being connected to one of the source/bit lines in a corresponding one of the pairs of the source/bit lines, and being separated from the other one of the source/bit lines in the corresponding one of the pairs of the source/bit lines.
    Type: Application
    Filed: February 11, 2022
    Publication date: August 17, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wen-Ling LU, Chia-En HUANG, Ya-Yun CHENG, Yi-Ching LIU, Huan-Sheng WEI, Chung-Wei WU
  • Patent number: 11715180
    Abstract: An apparatus including an interface and a processor. The interface may be configured to receive video frames generated by a plurality of capture devices. The processor may be configured to perform operations to detect objects in the video frames received from a first of the capture devices, determine depth information corresponding to the objects detected, determine blending lines in response to the depth information, perform video stitching operations on the video frames from the capture devices based on the blending lines and generate panoramic video frames in response to the video stitching operations. The blending lines may correspond to gaps in a field of view of the panoramic video frames. The blending lines may be determined to prevent the objects from being in the gaps in the field of view. The panoramic video frames may be generated to fit a size of a display.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: August 1, 2023
    Assignee: Ambarella International LP
    Inventors: I-Hsuan Chen, Hung-Ling Lu, Yen-Yu Chen
  • Patent number: D1049252
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: October 29, 2024
    Inventor: Ling Lu