Patents by Inventor Hung-Sheng Chang

Hung-Sheng Chang 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: 10755618
    Abstract: Systems and methods are provided for differential sensing (DS), difference-differential sensing (DDS), correlated double sampling (CDS), correlated-correlated double sampling (CDS-CDS) and/or programmable capacitor matching to reduce display panel sensing noise. An electronic device may include one or more processors that generate image data according to sensing operations. The one or more processors may reference a sensing pattern as part of sensing operations. Applying test sensing signals based on the sensing pattern may help reduce error associated with sensing operations.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: August 25, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Shengkui Gao, Hyunwoo Nho, Chin-Wei Lin, Mohammad B. Vahid Far, Jie Won Ryu, Kingsuk Brahma, Junhua Tan, Sun-Il Chang, Shinya Ono, Jesse Aaron Richmond, Yafei Bi, Derek K. Shaeffer, Myungjoon Choi, Shiping Shen
  • Publication number: 20200264790
    Abstract: A memory device includes an array of composite memory units. At least one of the composite memory units comprises a first memory cell of a first type, a second memory cell of a second type, a first intra-unit data path connecting the first memory cell to the second memory cell, and a first data path control switch. The first data path control switch is responsive to a data transfer enable signal which enables data transfer between the first memory cell and the second memory cell through the first intra-unit data path.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 20, 2020
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Hung-Sheng CHANG, Han-Wen HU
  • Patent number: 10714009
    Abstract: A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventors: Chin-Wei Lin, Hung Sheng Lin, Shih Chang Chang, Shinya Ono
  • Publication number: 20200210102
    Abstract: A flash memory device and a controlling method are provided. The flash memory device includes a memory array, an in-place update module, an out-of-place update module and a latency-aware module. The in-place update module is used for performing a program procedure or a garbage collection procedure via a bit erase operation or a page erase operation on the memory array. The out-of-place update module is used for performing the program procedure or the garbage collection procedure via a block erase operation or a migration operation on the memory array. The latency-aware module is used for determining a relationship between a first overhead of the in-place update module and a second overhead of the out-of-place update module.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 2, 2020
    Inventors: Hung-Sheng CHANG, Hang-Ting LUE, Yuan-Hao CHANG
  • Publication number: 20200192971
    Abstract: A circuit for in-memory multiply-and-accumulate functions includes a plurality of NAND blocks. A NAND block includes an array of NAND strings, including B columns and S rows, and L levels of memory cells. W word lines are coupled to (B*S) memory cells in respective levels in the L levels. A source line is coupled to the (B*S) NAND strings in the block. String select line drivers supply voltages to connect NAND strings on multiple string select lines to corresponding bit lines simultaneously. Word line drivers are coupled to apply word line voltages to a word line or word lines in a selected level. A plurality of bit line drivers apply input data to the B bit lines simultaneously. A current sensing circuit is coupled to the source line.
    Type: Application
    Filed: July 10, 2019
    Publication date: June 18, 2020
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Hang-Ting LUE, Hung-Sheng CHANG, Yi-Ching LIU
  • Patent number: 10685883
    Abstract: A method of wafer dicing and a die are provided. The method includes the following processes. A wafer is provided, the wafer includes a plurality of die regions and a scribe region between the die regions. The scribe region includes a substrate, and a dielectric layer and a test structure on the substrate, the test structure is disposed in the dielectric layer. A first removal process is performed to remove the test structure and the dielectric layer around the test structure, so as to expose the substrate. The first removal process includes performing a plurality of etching cycles, and each etching cycle includes performing a first etching process to remove a portion of the test structure and performing a second etching process to remove a portion of the dielectric layer. A second removal process is performed to remove the substrate in the scribe region, so as to form a plurality of dies separated from each other.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: June 16, 2020
    Assignee: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Hung-Sheng Chen, Ching-Wei Chen, Shuo-Che Chang
  • Publication number: 20200180169
    Abstract: A brake release device and a robot manipulator employing the same are provided. The robot manipulator includes a housing and a brake element. The housing defines an inner space and has an opening, and the inner space is in communication with a space outside the housing through the opening. The brake element is disposed within the inner space. The robot manipulator stops or is allowed to actuate according to a position of the brake element. The brake release device is connected with the brake element. The brake release device is partially located in the inner space, and the brake release device partially penetrates through the opening and is exposed from the housing. When the part of the brake release device exposed from the housing is moved by an external force so as to drive the brake element to move synchronously, the robot manipulator is allowed to actuate.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 11, 2020
    Inventors: Chi-Huan Shao, Chih-Ming Hsu, Hung-Sheng Chang
  • Patent number: 10671296
    Abstract: Disclosed is a management system for managing a memory device having sub-chips each having a container area and a data area. A CPU selects a target sub-chip according to respective temperature of the sub-chips. When the CPU intends to access a first original data in one of the data areas, a hot date tracking device acquires a first original address of the first original data from the CPU. When the first original address is recorded in one of a plurality of tracking layers, the CPU is indicated to access a first copied data corresponding to the first original data in the container area of the target sub-chip according to a current tracking layer recording the first original address. When the first original address is not recorded in the tracking layers, the CPU accesses the first original data in the data area according to the first original address.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 2, 2020
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Hung-Sheng Chang, Hsiang-Pang Li, Yuan-Hao Chang, Tei-Wei Kuo
  • Patent number: 10672320
    Abstract: A display device may include a processor that may receive image data, such that the image data may include gray level data and display brightness value (DBV) data for a first pixel of a display. The processor may then determine a gain compensation factor associated with the first pixel based on a correction spatial map, a brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may then determine an offset compensation factor associated with the first pixel based on the correction spatial map, the brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may generate compensated gray level data by applying the gain compensation factor and the offset compensation factor to the gray level data and transmit the compensated gray level data to pixel driving circuitry associated with the first pixel.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 2, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Soojin Park, Bhadrinarayana L. Visweswaran, Chieh-Wei Chen, Anshi Liang, Marc Albrecht, Pierre-Yves Emelie, Sean C. Chang, Hyunwoo Nho, Mohammad Hajirostam, Myung-Je Cho, Shengkui Gao, Wei H. Yao, Yafei Bi
  • Publication number: 20200168507
    Abstract: A semiconductor structure includes a substrate including a first region and a second region, a first channel layer disposed in the first region and a second channel layer disposed in the second region, a first dielectric layer disposed on the first channel layer and a second dielectric layer disposed on the second channel layer, and a first gate electrode disposed on the first dielectric layer and a second gate electrode disposed on the second dielectric layer. The first channel layer in the first region includes Ge compound of a first Ge concentration, the second channel layer in the second region includes Ge compound of a second Ge concentration. The first Ge concentration in the first channel layer is greater than the second Ge concentration in the second channel layer.
    Type: Application
    Filed: April 2, 2019
    Publication date: May 28, 2020
    Inventors: I-MING CHANG, CHUNG-LIANG CHENG, HSIANG-PI CHANG, HUNG-CHANG SUN, YAO-SHENG HUANG, YU-WEI LU, FANG-WEI LEE, ZIWEI FANG, HUANG-LIN CHAO
  • Publication number: 20200165446
    Abstract: A thermosetting resin composition comprises a thermosetting polybutadiene resin, a thermosetting polyphenylene ether resin that is ended with styrene and acrylate in a weight ratio of 0.5-1.5 as reactive functional groups, a thermoplastic resin that serves to set desired heat resistance, flowability and filling performance, a compound cross-linking initiator composed of peroxides of different half-life temperatures to effectively improve its crosslink density during its thermal curing process; particularly the composition after cured has a low dielectric constant, a low dielectric dissipation factor, a high Tg, and high rigidity, and the prepreg made thereof is easy to cut.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Inventors: Te-Chao LIAO, Ying-Te HUANG, Hao-Sheng CHEN, Hung-Yi CHANG, Chia-Lin LIU
  • Publication number: 20200165501
    Abstract: A fluorocarbon resin composition is applicable to produce high-frequency circuit boards including a polytetrafluoroethylene resin; a fluorine-containing copolymer such as poly fluoroalkoxy and fluorinated ethylene propylene; low molecular-weight PTFE micro-powders and inorganic powders; in particular the temperature of pressing copper foil substrates is lowered from 350° C. to 250° C. via a lowering temperature rate of 1 to 4° C./min to improve the crystallinity of the fluorocarbon resin composition as well as improve the copper foil substrate with a high thermal conductivity and a wide range of dielectric constant.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Inventors: Te-Chao LIAO, Hao-Sheng CHEN, Chih-Kai CHANG, Hung-Yi CHANG
  • Publication number: 20200166644
    Abstract: A method for operating an electronic display includes receiving, using a controller, sensor data related to operational parameters of the electronic display based at least in part on illuminating a sense pixel of at least one row of pixels of the electronic display, wherein a first set of pixels below the at least one row of pixels renders a portion of a first image frame and a second set of pixels above the at least one row of pixels renders a portion of a second image frame. The method also includes adjusting, using the controller, image display on the electronic display based at least in part on the sensor data.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 28, 2020
    Inventors: Hung Sheng Lin, Hyunwoo Nho, Jie Won Ryu, Junhua Tan, Sun-Il Chang
  • Publication number: 20200165434
    Abstract: A fluorocarbon resin composition is applicable to produce a prepreg for use in making a high-frequency circuit board, including a polytetrafluoroethylene resin; a fluorine-containing copolymer of poly fluoroalkoxy or fluorinated ethylene propylene; inorganic powders and an impregnation additive such as hydroxyethyl cellulos; resulted in that the prepreg is capable of increasing a plurality of times for proceeding impregnation-coating, the surface defects prone to occur on a fluorocarbon prepreg during drying, baking and sintering after impregnation are therefore improved at the same time.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Inventors: Te-Chao LIAO, Ying-Te HUANG, Chih-Kai CHANG, Hung-Yi CHANG, Hao-Sheng CHEN, Chia-Lin LIU
  • Patent number: 10665157
    Abstract: Systems and methods reduce likelihood of hysteresis that reduces perceived image quality of a subsequent image frame by toggling the display pixels to relax the display pixels by overwriting previous image frame data. During non-emission periods of the pixels, the pixels may be pre-toggled or exercised to improve response time and accuracy of the pixel. Data for pixels being programmed may also be used to pre-toggle other pixels reducing overhead but increasing cross-talk. Since the amount of cross-talk is related to content of the pixels being pre-toggled, a line buffer may be used to store image data for the pixels being pre-toggled. This stored image data may be used to determine how much pre-compensation is to be applied to data for the pixels being programmed. In other words, an amount of compensation applied is based at least in part on the content (e.g., greyscale levels) of the image data.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: May 26, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Shengkui Gao, Yingying Tang, Sean C. Chang, Mohammad B. Vahid Far, Kasra M. Omid-Zohoor, Chumin Zhao, Jingyu Huang, Mohammad Ali Jangda, Hyunwoo Nho, Chaohao Wang, Marc J. DeVincentis, Marc Albrecht, Warren S. Rieutort-Louis
  • Patent number: 10643511
    Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Rui Zhang, Mohammad Hajirostam, Hung Sheng Lin, Mohammad B. Vahid Far, Sang Y. Youn, Zhen Zhang, Prashant Mandlik, Sun-Il Chang, Jie Won Ryu, Shengkui Gao, Hyunwoo Nho, Wei H. Yao, Yafei Bi, Yun Wang
  • Patent number: 10642083
    Abstract: Electronic devices and methods for compensating for temperature-dependent fluctuations in a display include receiving a temperature index may be received from a sensor and/or calculations that indicates a temperature of the system, a pixel, a panel, a grid of a panel, or a combination thereof. The temperature is used to predict a voltage change across an emissive element (VHILO), such as an organic light emitting diode (OLED). This predicted voltage change is then compensated for before emission.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Injae Hwang, Rui Zhang, Hung Sheng Lin, Hyunsoo Kim, Hyunwoo Nho, Jesse A. Richmond, Jie Won Ryu, Junhua Tan, Kingsuk Brahma, Shengkui Gao, Shiping Shen, Sun-Il Chang
  • Publication number: 20200135587
    Abstract: In a method of manufacturing a semiconductor device, a fin structure having a lower fin structure and an upper fin structure disposed over the lower fin structure is formed. The upper fin structure includes first semiconductor layers and second semiconductor layers alternately stacked. The first semiconductor layers are partially etched to reduce widths of the first semiconductor layers. An oxide layer is formed over the upper fin structure. A sacrificial gate structure is formed over the upper fin structure with the oxide layer. A source/drain epitaxial layer is formed over a source/drain region of the fin structure. The sacrificial gate structure is removed to form a gate space. The oxide layer is removed to expose the second semiconductor layers in the gate space. A gate structure is formed around the second semiconductor layers in the gate space.
    Type: Application
    Filed: May 30, 2019
    Publication date: April 30, 2020
    Inventors: Chao-Ching CHENG, I-Sheng CHEN, Hung-Li CHIANG, Tzu-Chiang CHEN, Kai-Tai CHANG
  • Publication number: 20200118486
    Abstract: An electronic device comprises an electronic display having an active area having a pixel. The electronic device also comprises processing circuitry configured to receive image data to send to the pixel and adjust the image data to generate corrected image data based at least in part on a stored correction value for the pixel. The processing circuitry also is configured to generate a test data to send to the pixel subsequent to sending corrected image data to the pixel, wherein the test data is selected based upon a comparison of at least one aspect of the corrected image data with a threshold value.
    Type: Application
    Filed: March 27, 2018
    Publication date: April 16, 2020
    Inventors: Hung Sheng Lin, Hyunwoo Nho, Sun-Il Chang, Junhua Tan, Jie Won Ryu, Shengkui Gao, Rui Zhang, Injae Hwang, Kingsuk Brahma, Jesse Aaron Richmond, Shiping Shen, Hyunsoo Kim
  • Publication number: 20200108513
    Abstract: A heat dissipating system of movable robot is provided. The heat dissipating system includes a movable robot and at least one wind resistance structure. The movable robot includes a housing, at least one airflow passage and plural first air holes. The housing defines an inner space, the airflow passage is disposed in the inner space, and the first air holes are disposed on the housing and are in communication with the airflow passage respectively. When the movable robot moves, an air current is generated accordingly. The air current partially flows into the airflow passage through the first air hole acted as an inlet, and the air current in the airflow passage is released from the first air hole acted as an outlet. The wind resistance structure is configured for guiding the air current into the first air hole acted as the inlet.
    Type: Application
    Filed: January 3, 2019
    Publication date: April 9, 2020
    Inventors: Chi-Huan Shao, Chi-Shun Chang, Hung-Sheng Chang