Patents Assigned to Nuvoton Technology Corporation
  • Patent number: 11698880
    Abstract: A system on chip including a first master circuit, a second master circuit, a routing circuit, a bridge control circuit, and a peripheral circuit is provided. The first master circuit provides a first command. The second master circuit provides a second command. The routing circuit receives the first command and the second command and provides an output command. The bridge control circuit receives the output command and stores an attribute setting value. In response to the routing circuit receiving the first command and the first command pointing to the peripheral circuit, the routing circuit uses the first command as the output command and the bridge control circuit determines whether attribute information of the output command matches the attribute setting value. In response to the attribute information of the output command matching the attribute setting value, the bridge control circuit provides the output command to the peripheral circuit.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: July 11, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Shun-Hsiung Chen
  • Publication number: 20230205434
    Abstract: A microcontroller and a memory control method for the microcontroller are provided. The microcontroller includes a memory array, multiple memory controllers, and multiple counting controllers. The memory array includes multiple memory segments. The counting controllers count based on a memory clock to generate count values, respectively. When a count value reaches a preset value, a counting controller corresponding to the count value controls a corresponding memory controller to enter a power saving mode. When receiving an operation command, the counting controller resets the count value and controls the corresponding memory controller to enter an operation mode.
    Type: Application
    Filed: October 19, 2022
    Publication date: June 29, 2023
    Applicant: Nuvoton Technology Corporation
    Inventor: I-Ching Chen
  • Publication number: 20230208331
    Abstract: A motor control device and a motor control method are provided. The motor control device includes a memory and a controller. During an initialization period, the controller drives a brushless DC motor to change a rotor position through a drive circuit for adjusting and obtaining a starting angle and a locked exciting current corresponding to the starting angle, and the controller stores starting-angle information corresponding to the starting angle and locked exciting-current information corresponding to the locked exciting current in the memory. After the initialization period ends, during a normal rotation period, the controller maintains the rotor position of the brushless DC motor at the starting angle with the locked exciting current through the drive circuit, until the controller activates the brushless DC motor through the drive circuit.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 29, 2023
    Applicant: Nuvoton Technology Corporation
    Inventor: Chia-Hung Hung
  • Patent number: 11680991
    Abstract: A voltage measurement device is a voltage measurement device including a plurality of voltage detection circuits which measure cell voltages of a plurality of cells connected in series. Each of the plurality of voltage detection circuits includes: a communication end information holding circuit which holds communication end information specifying, as at least one communication end position, at least one of the plurality of voltage detection circuits; and a communication control circuit which controls transfer for sending a communication command received from a preceding voltage detection circuit located at a preceding stage to a next voltage detection circuit located at a next stage, according to the communication end information.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: June 20, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Naohisa Hatani, Jiro Miyake
  • Patent number: 11683600
    Abstract: A solid-state imaging apparatus includes pixel cells arranged in a matrix. Each pixel cell includes: a first photodiode that accumulates a signal charge generated by photoelectric conversion; a second photodiode that functions as a first holder that holds a signal charge that overflows from the first photodiode; a second holder; and a first transfer transistor that transfers the signal charge held in the second photodiode to the second holder.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: June 20, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Hiroyuki Amikawa, Makoto Ikuma, Kazutoshi Onozawa
  • Patent number: 11674830
    Abstract: A sensor is provided and is disposed on a package body of an integrated circuit chip. The sensor includes a sensing element, a protective element, a cover, and at least two traces. The sensing element is disposed on the integrated circuit chip. The protective element is disposed on the integrated circuit chip and surrounds the sensing element. The cover is connected to the protective element. The at least two traces are electrically connected to the sensing element and to at least two pins of the integrated circuit chip.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 13, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Ming-Chih Tsai
  • Patent number: 11663335
    Abstract: An anti-virus chip includes a first connection terminal, a second connection terminal, a detection unit and a processing unit. The first connection terminal and the second connection terminal are respectively coupled to a connection port and a system circuit of an electronic device. The detection unit detects whether the connection port is connected to an external device via the first connection terminal. When the detection unit detects that the connection port is connected to the external device, the processing unit performs a virus-scan program on the external device to determine whether a virus exists in the external device. When determining that a virus does not exist in the external device, the processing unit establishes a first transmission path between the first connection terminal and the second connection terminal. When determining that a virus exists in the external device, the processing unit does not establish the first transmission path.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 30, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventors: Ming-Che Hung, Chia-Ching Lu, Shih-Hsuan Yen, Chih-Wei Tsai
  • Patent number: 11662372
    Abstract: A method for measuring an input capacitance of a pin of an electronic device includes, using a tester including Pin Electronics (PE), obtaining a first capacitance measurement while the pin is disconnected from the PE, and a second capacitance measurement while the pin is connected to the PE. The input capacitance of the pin is calculated from the first and second capacitance measurements.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: May 30, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Alain Bismuth
  • Patent number: 11663101
    Abstract: A semiconductor device includes a debug port, a first access port, a second access port, a first processing unit, a second processing unit, and an embedded emulator unit. The first access port is coupled to the debug port. The second access port is coupled to the debug port. The first processing unit is coupled to the first access port. The second processing unit is coupled to the second access port. The embedded emulator unit is coupled to the debug port, the first processing unit and the second processing unit. The first processing unit generates a debug instruction to access the embedded emulator unit, so that the embedded emulator unit generates a debug signal. The debug signal is output to the second processing unit through the debug port and the second access port, so as to perform a debug operation on the second processing unit.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: May 30, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Zong-Min Lin
  • Patent number: 11650945
    Abstract: A cascade extension device and a cascade system having the cascade extension device are provided. The cascade extension device includes a control module, a buffer module, a storage module, and a selecting output module. The cascade system includes a processor and a plurality of extension devices. The processor may simultaneously control the plurality of extension devices through judging the data packet received as a write command, a read command, or a bypass command by a plurality of extension devices.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: May 16, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventors: Ming-Hung Wu, Hao-Yang Chang, Fong-Jhu Wu, Ciao-Ling Lu
  • Patent number: 11652451
    Abstract: A power amplifier device includes: a first power supply terminal for inputting a first power supply voltage; a first transistor for power amplification that (i) includes a first gate to which a bias voltage is applied, and (ii) is supplied with power from the first power supply terminal; a second power supply terminal for inputting a second power supply voltage lower than the first power supply voltage; a second transistor for monitoring that (i) includes a second gate to which the bias voltage is applied, (ii) is supplied with power from the first power supply terminal or the second power supply terminal, and (iii) imitates an operation of the first transistor; and a bias circuit that is supplied with power from the second power supply terminal and generates and adjusts the bias voltage according to a drain current or a source current of the second transistor.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: May 16, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Takashi Saji, Kaname Motoyoshi, Shingo Matsuda
  • Patent number: 11646230
    Abstract: A chip singulation method includes, in stated order: forming a surface supporting layer on an upper surface of a wafer; thinning the wafer from the undersurface to reduce the thickness to at most 30 ?m; removing the surface supporting layer from the upper surface; forming a first metal layer and subsequently a second metal layer on the undersurface of the wafer; applying a dicing tape onto an undersurface of the second metal layer; applying, onto the upper surface of the wafer, a process of increasing hydrophilicity of a surface of the wafer; forming a water-soluble protective layer on the surface of the wafer; cutting the wafer, the first metal layer, and the second metal layer by irradiating a predetermined region of the upper surface of the wafer with a laser beam; and removing the water-soluble protective layer from the surface of the wafer using wash water.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: May 9, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Takeshi Harada, Hiroaki Ohta, Yoshihiro Matsushima
  • Patent number: 11636907
    Abstract: An Integrated Circuit (IC) includes a non-volatile memory (NVM) and secure power-up circuitry. The NVM is configured to store an operational state of the IC. The secure power-up circuitry is configured to (i) during a power-up sequence of the IC, perform a first readout of the operational state from the NVM while a supply voltage of the IC is within a first voltage range, (ii) if the operational state read from the NVM in the first readout is a state that permits access to a sensitive resource of the IC, verify that the supply voltage is within a second voltage range, more stringent than the first voltage range, and then perform a second readout of the operational state from the NVM, and (iii) initiate a responsive action in response to a discrepancy between the operational states read from the NVM in the first readout and in the second readout.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 25, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventors: Ziv Hershman, Yoel Hayon, Moshe Alon
  • Patent number: 11637176
    Abstract: Provided is a first vertical field effect transistor in which first source regions and first connection portions via which a first body region is connected to a first source electrode are disposed alternately and cyclically in a first direction in which first trenches extend. In a second direction orthogonal to the first direction, Lxm?Lxr?0.20 ?m holds true where Lxm denotes a distance between adjacent first trenches and Lxr denotes the inner width of a first trench. The lengths of the first connection portions are in a convergence region in which the on-resistance of the vertical field effect transistor at the time when a voltage having a specification value is applied to first gate conductors to supply current having a specification value does not decrease noticeably even when the lengths of the first connection portions are made much shorter.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: April 25, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Hironao Nakamura, Ryosuke Okawa, Tsubasa Inoue, Akira Kimura, Eiji Yasuda
  • Patent number: 11629827
    Abstract: An illumination device includes a first light source that emits first light having a first peak wavelength which is highest in intensity in a wavelength range from near-ultraviolet to green in an emission spectrum; a second light source that emits second light having a second peak wavelength which is highest in intensity in a wavelength range from near-ultraviolet to green in an emission spectrum, the second light illuminating a position identical to a position illuminated by the first light; and a detection device that detects whether an object is present at a given position, wherein the second peak wavelength is shorter than the first peak wavelength, and a luminous flux of the first light is decreased and a luminous flux of the second light is increased when the detection device detects that the object is present at the predetermined position.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: April 18, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Atsuhiro Hori, Kenji Nakashima, Yasutoshi Kawaguchi, Hidemi Takeishi, Masanori Michimori, Shigeo Hayashi
  • Patent number: 11630787
    Abstract: A bus system is provided. A memory device is electrically connected to a master device via a serial peripheral interface (SPI) bus. A plurality of slave devices are electrically connected to the master device via an enhanced SPI (eSPI) bus. Each of the slave devices has an alert handshake pin. The alert handshake pins of the slave devices are electrically connected together via an alert-handshake control line. The first slave device is electrically connected to the memory device via the SPI bus. After obtaining a program code from the memory device, the first slave device verifies the program code using a security code and controls the alert-handshake control line to unlock all the slave devices except for the first slave device via the alert handshake pin in response to the program code being verified. The unlocked slave devices communicate with the master device via the eSPI bus.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: April 18, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventors: Chih-Hung Huang, Kang-Fu Chiu, Hao-Yang Chang
  • Patent number: 11626399
    Abstract: Provided is a semiconductor device which is a facedown mounting, chip-size-package-type semiconductor device and includes: a transistor element including a first electrode, a second electrode, and a control electrode which controls a conduction state between the first electrode and the second electrode; a plurality of first resistor elements each including a first electrode and a second electrode, the first electrodes of the first resistor elements being electrically connected to the second electrode of the transistor element; one or more external resistance terminals to which the second electrodes of the plurality of first resistor elements are physically connected; a first external terminal electrically connected to the first electrode of the transistor element; and an external control terminal electrically connected to the control electrode.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: April 11, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Kazuma Yoshida, Ryosuke Okawa, Tsubasa Inoue
  • Patent number: 11622194
    Abstract: A recurrent neural network is employed in a loudspeaker system to compensate the distortion of the system based upon a source signal (content) and the sensing output of a sensing circuit (context). A frequency domain transform is selected to provide mapping between the source signal and a recorded signal; and enable reconstruction of desirable playback. Various sensing-related features and source-related features are derived to serve as the auxiliary information. A desirable content is therefore generated based upon the original content and the context.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: April 4, 2023
    Assignee: Nuvoton Technology Corporation
    Inventors: Powen Ru, Jin Hee Kim, Nathan Wong, Pratul Saini
  • Patent number: 11619365
    Abstract: A light source unit includes: a first light emission point from which a first beam is emitted; a second light emission point from which a second beam is emitted and which is disposed apart from the first light emission point in a second direction perpendicular to a first direction; a deflection element that deflects the first and/or second beam; and a first condensing optical element that focuses, on a light collection surface, the first and second beams. The first beam at the first light emission point overlaps the second beam at the second light emission point in a third direction, and on the light collection surface, the first and second beams overlap each other in the second direction and are separate from each other in the third direction.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: April 4, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Masahiko Nishimoto, Kazuhiko Yamanaka, Masayuki Hata
  • Patent number: 11615049
    Abstract: A programmable serial input-output controller is provided. A timer circuit performs a timing operation. An input pin is configured to receive an input signal from an external circuit. An output pin is configured to provide an output signal to the external circuit. In an output mode, the sequence controller provides an initial level to the output pin and controls the timer circuit to perform the timing operation. In response to a duration of the timer circuit performing the timing operation reaching first transmission time, the sequence controller inverts the level of the output pin and controls the timer circuit to re-perform the timing operation. In response to the duration of the timer circuit re-performing the timing operation reaching second transmission time, the sequence controller inverts the level of the output pin.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: March 28, 2023
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Cheng-Chih Wang