Patents by Inventor Jer-Hau Hsu

Jer-Hau Hsu 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: 11882637
    Abstract: An operation method of a proximity sensor comprises: controlling a light-emitting element by a processing circuit. Such control includes a plurality of light source on and light source off operations. An optical sensor receives light and outputs a sensing signal corresponding to the intensity of the light. The processing circuit computes the sensing signal to produce a sensing result. The plurality of light source on and light source off operations includes a group having two light sources on operations and two light sources off operations. The two light sources on operations in the group or the two light sources off operations in the group are performed consecutively. In this way, the ambient light components of the light source on and off operations may cancel out each other to reduce the ambient light components contained in the sensing results.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: January 23, 2024
    Assignee: Sensortek Technology Corp.
    Inventors: Meng-Yong Lin, Ming-Huang Liu, Jer-Hau Hsu, Cheng-Feng Liu
  • Patent number: 11509322
    Abstract: A light sensor circuit, which comprising a photodiode and a voltage follower. By setting the voltage follower to reduce the influence from the junction capacitance of the photodiode, a required time of a repeat integration module will not be influenced by the photodiode to efficiently keep the performance and the accuracy of the analog to digital converting device when the light sensor circuit is used to the analog to digital converting device in repeat operation.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 22, 2022
    Assignee: Sensortek Technology Corp.
    Inventors: Jer-Hau Hsu, Ming-Huang Liu, Kian-Fu Wong
  • Publication number: 20220312570
    Abstract: An operation method of a proximity sensor comprises: controlling a light-emitting element by a processing circuit. Such control includes a plurality of light source on and light source off operations. An optical sensor receives light and outputs a sensing signal corresponding to the intensity of the light. The processing circuit computes the sensing signal to produce a sensing result. The plurality of light source on and light source off operations includes a group having two light sources on operations and two light sources off operations. The two light sources on operations in the group or the two light sources off operations in the group are performed consecutively. In this way, the ambient light components of the light source on and off operations may cancel out each other to reduce the ambient light components contained in the sensing results.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 29, 2022
    Inventors: MENG-YONG LIN, MING-HUANG LIU, JER-HAU HSU, CHENG-FENG LIU
  • Publication number: 20210250035
    Abstract: A light sensor circuit, which comprising a photodiode and a voltage follower. By setting the voltage follower to reduce the influence from the junction capacitance of the photodiode, a required time of a repeat integration module will not be influenced by the photodiode to efficiently keep the performance and the accuracy of the analog to digital converting device when the light sensor circuit is used to the analog to digital converting device in repeat operation.
    Type: Application
    Filed: September 8, 2020
    Publication date: August 12, 2021
    Inventors: JER-HAU HSU, MING-HUANG LIU, KIAN-FU WONG
  • Patent number: 10985770
    Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: April 20, 2021
    Assignee: Sensortek Technology Corp.
    Inventors: Jer-Hau Hsu, Tsung-Han Wu, Kian-Fu Wong, Meng-Yong Lin
  • Publication number: 20200389177
    Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.
    Type: Application
    Filed: March 16, 2020
    Publication date: December 10, 2020
    Inventors: Jer-Hau HSU, Tsung-Han WU, Kian-Fu WONG, Meng-Yong LIN
  • Patent number: 10444329
    Abstract: A sensing module includes a first sensor, for sensing a light signal to generate a first sensing signal including a first crosstalk component related to a crosstalk signal in the light signal; a second sensor, for sensing the light signal to generate a second sensing signal including a second crosstalk component related to the crosstalk signal; and an arithmetic unit, for combining the first sensing signal and the second sensing signal according to a ratio between the first crosstalk component and the second crosstalk component, to generate an output signal; wherein a distance between the first sensor and a light source generating the light signal is different from a distance between the second sensor and the light source.
    Type: Grant
    Filed: January 14, 2018
    Date of Patent: October 15, 2019
    Assignee: SensorTek technology Corp.
    Inventors: Jer-Hau Hsu, Feng-Jung Hsu
  • Publication number: 20180203101
    Abstract: A sensing module includes a first sensor, for sensing a light signal to generate a first sensing signal including a first crosstalk component related to a crosstalk signal in the light signal; a second sensor, for sensing the light signal to generate a second sensing signal including a second crosstalk component related to the crosstalk signal; and an arithmetic unit, for combining the first sensing signal and the second sensing signal according to a ratio between the first crosstalk component and the second crosstalk component, to generate an output signal; wherein a distance between the first sensor and a light source generating the light signal is different from a distance between the second sensor and the light source.
    Type: Application
    Filed: January 14, 2018
    Publication date: July 19, 2018
    Inventors: Jer-Hau Hsu, Feng-Jung Hsu
  • Patent number: 9634682
    Abstract: An analog-to-digital module includes a sampling unit, for generating an output voltage between a positive output end and a negative output end according to a positive input voltage of a positive input end and a negative input voltage of a negative input end; a comparing unit, for generating a digital output signal according to magnitude relationship between the output voltage and a reference voltage; a variable current source, for generating a variable current according to the digital output signal at the negative input end in a first period according to a control signal; a measured current source, for generating a measured current at the negative input end; and an adjusting unit, for adjusting the output voltage according to the digital output signal in a second period according to the control signal; wherein the first period does not overlap the second period.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 25, 2017
    Assignee: SensorTek technology Corp.
    Inventors: Tso-Sheng Tsai, Jer-Hau Hsu, Wen-Cheng Chen, Ming-Huang Liu
  • Patent number: 8077528
    Abstract: A bit-line voltage generator is provided. The bit-line voltage generator includes a discharge enhanced bias source and a switch unit.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: December 13, 2011
    Assignee: Macronix International Co. Ltd.
    Inventors: Jer-Hau Hsu, Yung Feng Lin
  • Patent number: 7812754
    Abstract: A digital to analog converter (DAC) has a plurality of transistor-resistor units connected in a string. Each of the transistor-resistor units of the DAC has a pair of transistors that are turned on/off by a pair of complementary control signals. Since the two transistors of each transistor-resistor unit are positioned symmetrically, an equivalent resistance would be determined precisely according to received digital codes, such that an output voltage of the DAC could be adjusted precisely based on the equivalent resistance.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: October 12, 2010
    Assignee: MACRONIX International Co, Ltd.
    Inventors: Jer-Hau Hsu, Tien-Yen Wang, Hsin-Yi Ho
  • Publication number: 20100157694
    Abstract: A bit-line voltage generator is provided. The bit-line voltage generator includes a discharge enhanced bias source and a switch unit.
    Type: Application
    Filed: March 2, 2010
    Publication date: June 24, 2010
    Applicant: MACRONIX INTERNATIONAL CO. LTD.
    Inventors: Jer-Hau Hsu, Yung Feng Lin
  • Patent number: 7697350
    Abstract: A bit-line voltage generator is provided. The bit-line voltage generator includes a discharge enhanced bias source and a switch unit.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: April 13, 2010
    Assignee: Macronix International Co. Ltd
    Inventors: Jer-Hau Hsu, Yung Feng Lin
  • Publication number: 20100039304
    Abstract: A digital to analog converter (DAC) has a plurality of transistor-resistor units connected in a string. Each of the transistor-resistor units of the DAC has a pair of transistors that are turned on/off by a pair of complementary control signals. Since the two transistors of each transistor-resistor unit are positioned symmetrically, an equivalent resistance would be determined precisely according to received digital codes, such that an output voltage of the DAC could be adjusted precisely based on the equivalent resistance.
    Type: Application
    Filed: December 18, 2008
    Publication date: February 18, 2010
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Jer-Hau Hsu, Tien-Yen Wang, Hsin-Yi Ho
  • Patent number: 7586802
    Abstract: A memory is provided. The memory includes a memory cell, a clamp transistor, an inverter, a bit line, a pre-charge path and a detector and controller circuit. The memory is coupled to the clamp transistor. The clamp transistor has a first end, a second end and a control end. The inverter has an input end electrically connected to the second end of the clamp transistor and an output end electrically connected to the control end of the clamp transistor. The bit line is electrically connected to the second end of the clamp transistor and the input end of the inverter and has a bit-line voltage thereon. The pre-charge path is electrically connected to the first end of the clamp transistor through a node having a sensing voltage thereon.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: September 8, 2009
    Assignee: Macronix International Co. Ltd.
    Inventors: Jer-Hau Hsu, Fu-Nian Liang, Yufe-Feng Lin
  • Publication number: 20090201747
    Abstract: A memory is provided. The memory includes a memory cell, a clamp transistor, an inverter, a bit line, a pre-charge path and a detector and controller circuit. The memory is coupled to the clamp transistor. The clamp transistor has a first end, a second end and a control end. The inverter has an input end electrically connected to the second end of the clamp transistor and an output end electrically connected to the control end of the clamp transistor. The bit line is electrically connected to the second end of the clamp transistor and the input end of the inverter and has a bit-line voltage thereon. The pre-charge path is electrically connected to the first end of the clamp transistor through a node having a sensing voltage thereon.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 13, 2009
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Jer-Hau Hsu, Fu-Nian Liang, Yufe-Feng Lin
  • Publication number: 20090168554
    Abstract: A bit-line voltage generator is provided. The bit-line voltage generator includes a discharge enhanced bias source and a switch unit.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicant: MACRONIX INTERNATIONAL CO. LTD.
    Inventors: Jer-Hau Hsu, Yung Feng Lin