Patents by Inventor Min-Hung Hu

Min-Hung Hu 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: 20200209520
    Abstract: A driving mechanism is provided, including a fixed part, a movable part for holding an optical element, a driving assembly, and a positioning structure. The movable part is connected to the fixed part. The driving assembly is configured to drive the movable part to move relative to the fixed part. The positioning structure is formed on the movable part or the fixed part for positioning the optical element or at least one part of the driving assembly.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Kai-Jing FU, Chao-Chang HU, Min-Hsiu TSAI, Mao-Kuo HSU, Juei-Hung TSAI
  • Patent number: 10473531
    Abstract: A temperature sensor includes a plurality of temperature coefficient voltage generators, one or more converters and at least one variable voltage or current source. The temperature coefficient voltage generators are used for generating multiple temperature coefficient voltages. The converters, coupled to the temperature coefficient voltage generators, are used for converting the temperature coefficient voltages to digital values. The at least one variable voltage or current source, each coupled to at least one of the temperature coefficient voltage generators, includes a first variable voltage or current source for outputting a first voltage or current in a first time period, and outputting a second voltage or current in a second time period, wherein the second voltage or current is different from the first voltage or current such that there exists a shift between a first voltage-temperature curve in the first time period and a second voltage-temperature curve in the second time period.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: November 12, 2019
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Ying-Chieh Yen, Min-Hung Hu, Yuan-Te Chen, Cun-Kai Zhao, Chien-Chuan Huang
  • Publication number: 20190154209
    Abstract: This disclosure discloses a light-emitting bulb. The light-emitting bulb includes a cover, an electrical associated with the cover, a board arranged between the cover and the electrical connector, and a first light-emitting device disposed on the board. The first light-emitting device includes a carrier having a first side and a second side, a first electrode part disposed near the first side and extending to the second side, a bended part disposed near to the second side and spaced apart from the first electrode part, and a second electrode part extending from the bended part to the first side. No light-emitting diode unit is arranged on the second electrode part.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventors: Chiu-Lin YAO, Min-Hsun HSIEH, Been-Yu LIAW, Wei-Chiang HU, Po-Hung LAI, Chun-Hung LIU, Shih-An LIAO, Yu-His SUNG, Ming-Chi HSU
  • Publication number: 20190072435
    Abstract: A temperature sensor includes a plurality of temperature coefficient voltage generators, one or more converters and at least one variable voltage or current source. The temperature coefficient voltage generators are used for generating multiple temperature coefficient voltages. The converters, coupled to the temperature coefficient voltage generators, are used for converting the temperature coefficient voltages to digital values. The at least one variable voltage or current source, each coupled to at least one of the temperature coefficient voltage generators, includes a first variable voltage or current source for outputting a first voltage or current in a first time period, and outputting a second voltage or current in a second time period, wherein the second voltage or current is different from the first voltage or current such that there exists a shift between a first voltage-temperature curve in the first time period and a second voltage-temperature curve in the second time period.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Inventors: Ying-Chieh Yen, Min-Hung Hu, Yuan-Te Chen, Cun-Kai Zhao, Chien-Chuan Huang
  • Patent number: 10175267
    Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 8, 2019
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Hsi-Ming Chen, Chao-Wei Su, Ying-Chieh Yen
  • Patent number: 10038417
    Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: July 31, 2018
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Ping-Lin Liu, Pin-Han Su
  • Publication number: 20180188292
    Abstract: A current measurement circuit for measuring a current consumption of a circuit system includes a plurality of current measurement units and a current-to-voltage (I-V) converter. Each of the current measurement units includes an impedance unit and a voltage-to-current (V-I) converter. The impedance unit includes a first terminal and a second terminal. The V-I converter, coupled to the first terminal and the second terminal of the impedance unit, includes an output terminal and an operational transconductance amplifier (OTA). The plurality of output terminals of the plurality of V-I converters of the plurality of current measurement units are coupled to a first node. The I-V converter is coupled to the first node.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 5, 2018
    Inventors: Min-Hung Hu, Hsi-Ming Chen, Chao-Wei Su, Ying-Chieh Yen
  • Patent number: 9971370
    Abstract: A voltage regulator including a voltage amplifier, a first output-stage, an AC-pass filter, a current amplifier, a second output-stage and a gain circuit is provided. Output terminals of the first and the second output-stages jointly provide the output voltage of the voltage regulator. Two input terminals of the voltage amplifier respectively receive a reference voltage and the output voltage. An input terminal of the first output-stage is coupled to an output terminal of the voltage amplifier. Two input terminals of the current amplifier respectively receive a reference current and the AC component of the output voltage. An input terminal of the second output-stage is coupled to an output terminal of the current amplifier. An input terminal of the gain circuit is coupled to the output terminal of the voltage amplifier. An output terminal of the gain circuit is coupled to the input terminal of the second output-stage.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: May 15, 2018
    Assignee: Novatek Microelectronics Corp.
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu, Juin-Wei Huang, Pin-Han Su
  • Publication number: 20170373653
    Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 28, 2017
    Inventors: Min-Hung Hu, Ping-Lin Liu, Pin-Han Su
  • Publication number: 20170108883
    Abstract: A voltage regulator including a voltage amplifier, a first output-stage, an AC-pass filter, a current amplifier, a second output-stage and a gain circuit is provided. Output terminals of the first and the second output-stages jointly provide the output voltage of the voltage regulator. Two input terminals of the voltage amplifier respectively receive a reference voltage and the output voltage. An input terminal of the first output-stage is coupled to an output terminal of the voltage amplifier. Two input terminals of the current amplifier respectively receive a reference current and the AC component of the output voltage. An input terminal of the second output-stage is coupled to an output terminal of the current amplifier. An input terminal of the gain circuit is coupled to the output terminal of the voltage amplifier. An output terminal of the gain circuit is coupled to the input terminal of the second output-stage.
    Type: Application
    Filed: October 19, 2015
    Publication date: April 20, 2017
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu, Juin-Wei Huang, Pin-Han Su
  • Patent number: 9494959
    Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: November 15, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu, Chun-Wei Huang, Pin-Han Su
  • Patent number: 9471075
    Abstract: A compensation module for a voltage regulation device having a gain stage, an output stage and a miller compensation module includes a low-output-impedance non-inverting amplifier unit coupled to a gain output of the gain stage and an output-stage input of the output stage.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 18, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Pin-Han Su, Chun-Wei Huang, Chen-Tsung Wu, Chiu-Huang Huang
  • Patent number: 9459647
    Abstract: The present invention provides a bandgap reference circuit. The bandgap reference circuit includes a first bipolar junction transistor, a first resistor, for generating a proportional to absolute temperature current, a second resistor, for generating a complementary to absolute temperature current, a first operational amplifier, coupled with the first bipolar junction transistor and the first resistor, a second operational amplifier, coupled with the first bipolar junction transistor and the second resistor, and a zero temperature correlated current generator, for summing the proportional to absolute temperature current and the complementary to absolute temperature current, to generate a zero temperature correlated current.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 4, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Zhen-Guo Ding, Chen-Tsung Wu
  • Patent number: 9411354
    Abstract: A device of triggering and generating temperature coefficient current for generating a temperature coefficient current includes a positive temperature coefficient current generating unit, for generating a first positive temperature coefficient current, a negative temperature coefficient current generating unit, for generating a first negative temperature coefficient current, and a triggering unit, for triggering to generate the temperature coefficient current according to a triggering temperature and a current difference between the first positive temperature coefficient current and the first negative temperature coefficient current.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: August 9, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Chen-Tsung Wu
  • Patent number: 9389623
    Abstract: A voltage converting device with a self-reference feature for an electronic system includes a differential current generating module, implemented in a Complementary metal-oxide-semiconductor (CMOS) processing for generating a differential current pair according to a converting voltage; and a voltage converting module, coupled to the differential current generating module, a first supply voltage and a second supply voltage of the electronic system for generating the converting voltage according to the differential current pair, the first supply voltage and the second supply voltage.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 12, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Pin-Han Su, Chen-Tsung Wu, Chiu-Huang Huang, Chun-Wei Huang
  • Publication number: 20160011615
    Abstract: A current source for quickly adjusting an output current includes a constant current generation module, coupled to a control node, for generating a predefined current flowing through the control node in order to determine a voltage of the control node; a capacitor, coupled to an output terminal of the current source; a current variation detection module, coupled between the control node and the capacitor, for generating a variation on the voltage of the control node via the capacitor when the output terminal of the current source receives an instant current variation; and a trans-conductance amplifier, coupled between the control node and the output terminal, for changing a magnitude of the output current of the output terminal when the variation on the voltage of the control node is generated.
    Type: Application
    Filed: November 25, 2014
    Publication date: January 14, 2016
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu, Chun-Wei Huang, Pin-Han Su
  • Patent number: 9213349
    Abstract: The present invention discloses a bandgap reference circuit. The bandgap reference circuit includes an operational transconductance amplifier, and a reference generation circuit. The operational transconductance amplifier includes a self-biased operational transconductance amplifier, for utilizing an area difference between bipolar junction transistors of an input pair to generate a first positive temperature coefficient current to bias the input pair, and generating a positive temperature coefficient control voltage and a negative temperature coefficient control voltage; and a feedback voltage amplifier, for amplifying the negative temperature coefficient control voltage, and outputting a reference voltage to the input pair for feedback, to generate a first negative temperature coefficient current. The reference generation circuit generates a summation voltage or a summation current according to the positive temperature coefficient control voltage and the negative temperature coefficient control voltage.
    Type: Grant
    Filed: September 1, 2013
    Date of Patent: December 15, 2015
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu
  • Patent number: 9152157
    Abstract: A fast response current source capable of providing an output current is disclosed. The fast response current source includes a constant current generating block, a first feedback capacitor, a first current buffer and a first output current generating block. The constant current generating block provides a first constant current. The first current buffer generates a first buffering current to flow through the first feedback terminal, and changes a current value of the first buffering current in response to the current variation at the first feedback terminal when the voltage at the output terminal is varied. The first output current generating block generates a first output current to flow through the output terminal, and changes a current value of the first output current in response to the variation of the first buffering current when the voltage at the output terminal is varied.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 6, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Min-Hung Hu, Chiu-Huang Huang
  • Patent number: 9093895
    Abstract: A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: July 28, 2015
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu
  • Patent number: 9093896
    Abstract: A multi-power domain operational amplifier includes an input stage circuit, a power domain transforming circuit and an active load. The input stage circuit is configured to transform a set of input voltages into a set of input currents in a first power domain. The power domain transforming circuit is configured to transform the set of input currents into a set of output currents in a second power domain. The active load is configured to generate an output voltage according to the set of output currents. A common mode range of the output voltage is shifted as compared with a common mode range of the set of input voltages.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: July 28, 2015
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Min-Hung Hu, Chiu-Huang Huang, Chen-Tsung Wu