Patents by Inventor Meng Fan

Meng Fan 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: 11967357
    Abstract: A memory unit with time domain edge delay accumulation for computing-in-memory applications is controlled by a first word line and a second word line. The memory unit includes at least one memory cell, at least one edge-delay cell multiplexor and at least one edge-delay cell. The at least one edge-delay cell includes a weight reader and a driver. The weight reader is configured to receive a weight and a multi-bit analog input voltage and generate a multi-bit voltage according to the weight and the multi-bit analog input voltage. The driver is connected to the weight reader and configured to receive an edge-input signal. The driver is configured to generate an edge-output signal having a delay time according to the edge-input signal and the multi-bit voltage. The delay time of the edge-output signal is positively correlated with the multi-bit analog input voltage multiplied by the weight.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 23, 2024
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Meng-Fan Chang, Ping-Chun Wu, Li-Yang Hong, Jin-Sheng Ren, Jian-Wei Su
  • Patent number: 11951862
    Abstract: A system for testing an assist function of electric vehicle wireless power transfer includes: a pit, a vehicle-assembly support platform, and an electromagnetic field strength measurement instrument. A ground-assembly support platform is arranged inside the pit, the vehicle-assembly support platform is arranged on an upper side of the ground-assembly support platform, and a to-be-tested member is arranged on an upper side of the ground-assembly support platform. A ground-assembly device coil is arranged on an upper surface of the ground-assembly support platform, a vehicle-assembly device coil is arranged inside the vehicle-assembly support platform, the ground-assembly device coil charges an entire vehicle, and the ground-assembly device coil further cooperates with the vehicle-assembly device coil to charge a vehicle component. A mechanical arm is arranged on ground of a test site, an interference member is arranged on a front end of the mechanical arm.
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: April 9, 2024
    Assignee: CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD.
    Inventors: Baoqiang Zhang, Fang Wang, Zhaohui Wang, Bin Fan, Xin Huang, Jianbo Wang, Yang Li, Yue Xu, Meng Zhang, Xiao Li
  • Patent number: 11942185
    Abstract: An Input/Output (I/O) circuit for a memory device is provided. The I/O circuit includes a charge integration circuit coupled to a bitline of the memory device. The charge integration circuit provides a sensing voltage based on a decrease of a voltage on the bitline. A comparator is coupled to the charge integration circuit. The comparator compares the sensing voltage with a reference voltage and provides an output voltage based on the comparison. A time-to-digital converter coupled to the comparator. The time-to-digital convertor converts a time associated with the output voltage to a digital value.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: March 26, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Je-Min Hung, Win-San Khwa, Meng-Fan Chang
  • Patent number: 11942178
    Abstract: A circuit includes a reference voltage node, first and second data lines, a sense amplifier, first and second switching devices coupled between the first and second data lines and first and second input terminals of the sense amplifier, third and fourth switching devices coupled between the first and second data lined and first and second nodes, fifth and sixth switching devices coupled between the first and second nodes and the reference voltage node, and first and second capacitive devices coupled between the first and second nodes and second and first input terminals. Each of the first through fourth switching devices is switched on and each of the fifth and sixth switching devices is switched off in a first operational mode, and each of the first through fourth switching devices is switched off and each of the fifth and sixth switching devices is switched on in a second operational mode.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: March 26, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jui-Jen Wu, Win-San Khwa, Jen-Chieh Liu, Meng-Fan Chang
  • Patent number: 11941323
    Abstract: A meme creation method and apparatus are provided, and relate to the terminal field, to enrich forms and content of memes, and improve user experience. The method includes: displaying a first interface, where the first interface includes a speech input button; receiving, in response to an operation of triggering the speech input button by a user, a speech input by the user; recognizing the speech in a preset manner, where recognition in the preset manner includes at least content recognition, and if the speech includes a target keyword, recommending a first image meme set to the user; obtaining, in response to an operation of selecting one image meme from the first image meme set by the user, a target meme based on the image meme selected by the user and the speech or semantics corresponding to the speech; and sending the target meme.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 26, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Meng Wang, Zhuo Wang, Fan Fan, Lelin Wang
  • Publication number: 20240092208
    Abstract: A system for testing an assist function of electric vehicle wireless power transfer includes: a pit, a vehicle-assembly support platform, and an electromagnetic field strength measurement instrument. A ground-assembly support platform is arranged inside the pit, the vehicle-assembly support platform is arranged on an upper side of the ground-assembly support platform, and a to-be-tested member is arranged on an upper side of the ground-assembly support platform. A ground-assembly device coil is arranged on an upper surface of the ground-assembly support platform, a vehicle-assembly device coil is arranged inside the vehicle-assembly support platform, the ground-assembly device coil charges an entire vehicle, and the ground-assembly device coil further cooperates with the vehicle-assembly device coil to charge a vehicle component. A mechanical arm is arranged on ground of a test site, an interference member is arranged on a front end of the mechanical arm.
    Type: Application
    Filed: July 31, 2023
    Publication date: March 21, 2024
    Applicant: CATARC NEW ENERGY VEHICLE TEST CENTER (TIANJIN) CO., LTD.
    Inventors: Baoqiang ZHANG, Fang WANG, Zhaohui WANG, Bin FAN, Xin HUANG, Jianbo WANG, Yang LI, Yue XU, Meng ZHANG, Xiao LI
  • Publication number: 20240096343
    Abstract: This application relates to the artificial intelligence (AI) field, and specifically, to a voice quality enhancement method and a related device. The method includes: after a PNR mode is enabled, obtaining a noisy voice signal and target voice-related data, where the noisy-carrying voice signal includes a voice signal of a target user and an interfering noise signal, and the target voice-related data indicates a voice feature of the target user; and performing noise reduction on the noisy voice signal based on the target voice-related data by using a trained voice noise reduction model to obtain a noise-reduced voice signal of the target user, where the voice noise reduction model is implemented based on a neural network. In embodiments of this application, voice of a target person can be enhanced, and interference can be suppressed.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Inventors: Shanyi WEI, Chao WU, Yan QIU, Meng LIAO, Fan FAN, Shiqiang PENG, Bin LI, Wenbin ZHAO, Jiang LI, Haiting LI, Xueyan HUANG
  • Publication number: 20240086155
    Abstract: A computation apparatus and a computation method with input swapping are provided. The computation apparatus includes a non-zero detection circuit, a swapper policy circuit, a swapper matrix circuit, and an adder tree. The non-zero detection circuit is configured to receive input vectors, inspect non-zero operands in the input vectors and generate a non-zero indicative signal indicating the non-zero operands. The swapper policy circuit is configured to receive and interpret the non-zero indicative signal, and generate multiplexer (MUX) selection signals for swapping the non-zero operands according to a set of swapping policies. The swapper matrix circuit is configured to receive the input vectors and the MUX selection signal, and perform swapping on operands in the input vectors according to the MUX selection signal. The adder tree is configured to receive the input vectors with the swapped operands and perform additions on the input vectors to output a computation result.
    Type: Application
    Filed: January 6, 2023
    Publication date: March 14, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Win-San Khwa, Yi-Lun Lu, Jui-Jen Wu, Meng-Fan Chang
  • Patent number: 11929115
    Abstract: A memory device and an operation method thereof are provided. The memory device includes memory cells, each having a static random access memory (SRAM) cell and a non-volatile memory cell. The SRAM cell is configured to store complementary data at first and second storage nodes. The non-volatile memory cell is configured to replicate and retain the complementary data before the SRAM cell loses power supply, and to rewrite the replicated data to the first and second storage nodes of the SRAM cell after the power supply of the SRAM cell is restored.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: March 12, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jer-Fu Wang, Hung-Li Chiang, Yi-Tse Hung, Tzu-Chiang Chen, Meng-Fan Chang
  • Publication number: 20240079080
    Abstract: A memory test circuit is provided. The memory test circuit is disposed in a memory array and including: a test array, including test cells out of memory cells of the memory array; a write multiplexer, configured to selectively output one of a test signal and a reference voltage based on a write measurement signal, wherein the test signal is output to write into at least one test cell and the reference voltage is output to a sense amplifier; and a read multiplexer, configured to selectively receive and output one of a readout signal corresponding to the test signal and an amplified signal based on a read measurement signal, wherein the readout signal is read from the at least one test cell and the amplified signal is obtained for a read margin evaluation from the sense amplifier by amplifying a voltage difference between the readout signal and the reference voltage.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Jen Wu, Jen-Chieh Liu, Yi-Lun Lu, Win-San Khwa, Meng-Fan Chang
  • Publication number: 20240079075
    Abstract: A memory test circuit is provided. The memory test circuit is disposed in a memory chip and electrically coupled to a memory macro of the memory chip. A high speed clock receives an input signal and an external clock signal. The input signal includes a plurality of test bits. A finite state machine controller provides a pattern type. A pattern generator generates and provides a test signal to at least one memory cell of the memory chip to write the test signal to the at least one memory cell based on the pattern type and the external clock signal. A test frequency of the test signal is determined based on the high speed clock. An output comparator outputs a comparison signal based on a difference between the test signal and a readout signal corresponding to the test signal read from the at least one memory cell.
    Type: Application
    Filed: January 12, 2023
    Publication date: March 7, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Jen Wu, Jen-Chieh Liu, Yi-Lun Lu, Win-San Khwa, Meng-Fan Chang
  • Patent number: 11922855
    Abstract: An information handling system includes a host processing system and a Liquid Crystal Display device. The host processing system includes a graphics processing unit (GPU) and the LCD device includes a memory device and a DisplayPort Configuration Data (DPCD) register. The host processing system 1) determines whether the first GPU supports a Dynamic Display Shifting (DDS) mode, 2) when the GPU does not support the DDS mode, provides a first indication to the LCD device that the GPU does not support the DDS mode, and 3) when the GPU supports the DDS mode, provides a second indication to the LCD device that the GPU supports the DDS mode. The LCD device retrieves a Panel Self Refresh (PSR) setting from the memory device and stores the PSR setting to the DPCD register in response to the first indication, and retrieves a DDS setting from the memory and stores the DDS setting to the DPCD register in response to the second indication.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: March 5, 2024
    Assignee: Dell Products L.P.
    Inventors: Chun-Yi Chang, Yi-Fan Wang, Meng-Feng Hung, No-Hua Chuang, Yu Sheng Chang
  • Patent number: 11915733
    Abstract: A circuit includes a sense amplifier, a first clamping circuit, a second clamping circuit, and a feedback circuit. The first clamping circuit includes first clamping branches coupled in parallel between the sense amplifier and a memory array. The second clamping circuit includes second clamping branches coupled in parallel between the sense amplifier and a reference array. The feedback circuit is configured to selectively enable or disable one or more of the first clamping branches or one or more of the second clamping branches in response to an output data outputted by the sense amplifier.
    Type: Grant
    Filed: January 17, 2022
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Win-San Khwa, Jui-Jen Wu, Jen-Chieh Liu, Meng-Fan Chang
  • Publication number: 20240055031
    Abstract: The disclosure provides a method for controlling a sense amplifier. The control device includes a latch circuit and a control circuit. The latch circuit receives a plurality of memory data signals from the sense amplifier, wherein the latch circuit respectively generates a plurality of reference data signals based on the plurality of memory data signals. The control circuit is coupled to the latch circuit, provides an enable signal to the sense amplifier in response to a pass gate signal of the sense amplifier, and stops providing the enable signal in response to at least one of the plurality of reference data signals, wherein the enable signal controls a sensing period of the sense amplifier.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 15, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Jen Wu, Jen-Chieh Liu, Yi-Lun Lu, Win-San Khwa, Meng-Fan Chang
  • Patent number: 11901004
    Abstract: A memory array, a memory structure and an operation method of a memory array are provided. The memory array includes memory cells, floating gate transistors, bit lines and word lines. The memory cells each comprise a capacitor and an electrically programmable non-volatile memory (NVM) serially connected to the capacitor, and further comprise a write transistor with a first source/drain terminal coupled to a common node of the capacitor and the electrically programmable NVM. The floating gate transistors respectively have a gate terminal electrically floated and coupled to the capacitors of a column of the memory cells. The bit lines respectively coupled to the electrically programmable NVMs of a row of the memory cells. The word lines respectively coupled to gate terminals of the write transistors in a row of the memory cells.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: February 13, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kerem Akarvardar, Win-San Khwa, Rawan Naous, Jin Cai, Meng-Fan Chang, Hon-Sum Philip Wong
  • Patent number: 11889032
    Abstract: An apparatus for acquiring an image includes an image sensor, a light compensator, and a light filter assembly. The image sensor is on a light output side of the light filter assembly, and is configured to generate and output a first image signal and a second image signal by a plurality of exposures. The first image signal is generated according to a first preset exposure and the second image signal is generated according to a second preset exposure, and they are two of the plurality of exposures. The light compensator includes a first light compensation apparatus, the first light compensation apparatus is configured to perform near-infrared light compensation, and the near-infrared light compensation is performed in at least part of an exposure period of the first preset exposure but is not performed in an exposure period of the second preset exposure.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: January 30, 2024
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventors: Meng Fan, Hai Yu, Shiliang Pu
  • Publication number: 20240021226
    Abstract: In some aspects of the present disclosure, a memory array structure is disclosed. In some embodiments, the memory array structure includes a word array. In some embodiments, the word array stores an N-bit word. In some embodiments, the word array includes a plurality of first memory structures and a plurality of second memory structures. In some embodiments, each first memory structure includes a first transistor and a first memory element. In some embodiments, each second memory structure includes a second transistor and a plurality of second memory elements, each second memory element includes a first end and a second end, the first end of each second memory element is coupled to a corresponding bit line, and the second end of each second memory element is coupled to a first end of the second transistor.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 18, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company Ltd.
    Inventors: Hung-Li Chiang, Jer-Fu Wang, Tzu-Chiang Chen, Meng-Fan Chang
  • Publication number: 20230420041
    Abstract: The sense amplifier circuit includes a differential amplifier, a first switch, and a second switch. The differential amplifier includes a first input node, a second input node, a first output node, and a second output node. The differential amplifier amplifies a voltage difference of the first output node and the second output node according to a first input voltage of the first input node and a second input voltage of the second input node. A control node of the first (second) switch is coupled to a control line, the first (second) switch is coupled to the first (second) input node, and the first (second) switch is coupled to the first (second) output node. The first (second) switch pre-charges the first (second) input node by a first (second) output voltage of the first (second) output node while the control line is received a select signal.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 28, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui-Jen Wu, Jen-Chieh Liu, Yi-Lun Lu, Win-San Khwa, Meng-Fan Chang
  • Publication number: 20230420013
    Abstract: A method of storing an input data of a data set into a memory storage having bit cells. The method includes determining a bit value of a characterization bit in the input data. The method also includes writing each of remaining bits in the input data into one of the bit cells as a first state if the characterization bit has a first value, and writing each of remaining bits in the input data into the bit cells as a second state if the characterization bit has a second value that is complement to the first value. In the method, either reading the bit cell with the first state consumes less energy than reading the bit cell with the second state or the bit cell with the first state has less retention errors than the bit cell with the second state.
    Type: Application
    Filed: May 18, 2022
    Publication date: December 28, 2023
    Inventors: Win-San KHWA, Jui-Jen WU, Jen-Chieh LIU, Meng-Fan CHANG
  • Patent number: 11854594
    Abstract: A data processing method, a data processing circuit, and a computing apparatus are provided. In the method, data is obtained. A first value of a bit of the data is switched into a second value according to data distribution and an accessing property of memory. The second value of the bit is stored in the memory in response to switching the bit.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltpd.
    Inventors: Hung-Li Chiang, Jer-Fu Wang, Tzu-Chiang Chen, Meng-Fan Chang