Patents by Inventor Heng-Chia Chang

Heng-Chia 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).

  • Publication number: 20210319844
    Abstract: A memory test method and apparatus, an electronic device, and a computer-readable storage medium are provided. The method includes: obtaining a test instruction; generating, in response to the test instruction, a test clock signal, a to-be-tested address and to-be-tested data; determining a to-be-tested memory from memories of a storage device, the storage device including a self-test circuit; writing the to-be-tested data into a storage unit corresponding to the to-be-tested address of the to-be-tested memory; reading output data from the storage unit corresponding to the to-be-tested address of the to-be-tested memory; and comparing the to-be-tested data and the output data to obtain a test result of the to-be-tested memory. The self-test circuit disposed in the storage device is used to implement a memory test process. Thus, the dependency on automatic test equipment is reduced, thereby improving test speed and reducing test cost.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 14, 2021
    Inventors: Chuanqi SHI, Heng-Chia CHANG, Li DING
  • Publication number: 20210030341
    Abstract: An implantable micro-biosensor a substrate, a first electrode, a second electrode, a third electrode, and a chemical reagent layer. The first electrode is disposed on the substrate and used as a counter electrode. The second electrode is disposed on the substrate and spaced apart from the first electrode. The third electrode is disposed on the substrate and used as a working electrode. The chemical reagent layer at least covers a sensing section of the third electrode so as to permit the third electrode to selectively cooperate with the first electrode or the first and second electrodes to measure a physiological signal in response to the physiological parameter of the analyte.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Chun-Mu Huang, Chieh-Hsing Chen, Heng-Chia Chang, Chi-Hao Chen, Chien-Chung Chen
  • Publication number: 20210030316
    Abstract: A method for manufacturing an implantable micro-biosensor includes the steps of: a) providing a substrate, b) forming on a first surface of the substrate a first working electrode which at least includes a first sensing section including a first conductive material, c) forming on the first surface of the substrate at least one second working electrode which at least includes a second sensing section disposed proximate to at least one side of the first sensing section, and d) forming a chemical reagent layer which at least covers the first conductive material of the first sensing section and which reacts with the analyte to produce a product.
    Type: Application
    Filed: August 3, 2020
    Publication date: February 4, 2021
    Inventors: Chun-Mu Huang, Chieh-Hsing Chen, Heng-Chia Chang, Chi-Hao Chen, Chien-Chung Chen
  • Publication number: 20210030342
    Abstract: The present invention provides a measuring method for prolonging a usage lifetime of a biosensor to measure a physiological signal representative of a physiological parameter associated with an analyte in a biofluid. The biosensor includes two working electrodes at least partially covered by a chemical reagent and two counter electrodes having silver and a silver halide, and each silver halide has an initial amount.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Chun-Mu Huang, Chieh-Hsing Chen, Heng-Chia Chang, Chi-Hao Chen, Chien-Chung Chen
  • Publication number: 20210030324
    Abstract: The present invention provides a micro biosensor for reducing a measurement interference when measuring a target analyte in the biofluid, including: a substrate; a first working electrode configured on the surface, and including a first sensing section; a second working electrode configured on the surface, and including a second sensing section which is configured adjacent to at least one side of the first sensing section; and a chemical reagent covered on at least a portion of the first sensing section for reacting with the target analyte to produce a resultant. When the first working electrode is driven by a first working voltage, the first sensing section measures a physiological signal with respect to the target analyte. When the second working electrode is driven by a second working voltage, the second conductive material can directly consume the interferant so as to continuously reduce the measurement inference of the physiological signal.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Chun-Mu Huang, Chieh-Hsing Chen, Heng-Chia Chang, Chi-Hao Chen, Pi-Hsuan Chen
  • Patent number: 9996134
    Abstract: A method to avoid over-rebooting of a power supply device comprises Step 1: receiving a power-good signal generated by a power supply device working normally; Step 2: checking whether the power-good signal is received; if no, demanding the power supply device to reboot; and Step 3: recording a count of rebootings of the power supply device; after the power supply device reboots, checking again whether the power-good signal is received; if yes, letting the power supply device keep on working and resetting the count of rebootings; if no, demanding the power supply device to reboot again, accumulating the count of rebootings, and checking whether the count of rebootings is greater than a limited count of rebootings; if yes, forbidding the power supply device to reboot. Thus is solved the problem that a power supply device whose abnormality cannot be removed by rebooting may damage the information device.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 12, 2018
    Assignee: ZIPPY TECHNOLOGY CORP.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Kuang-Lung Shih, Heng-Chia Chang
  • Patent number: 9966794
    Abstract: A power supply for a redundant power system includes a housing, a first circuit board, a second circuit board and a cooling fan. The first and second circuit boards are sequentially disposed in the housing. The length of the first circuit board is smaller than that of the second circuit board. Between the first and second circuit boards is a gap. The first and second circuit boards are each distributed with multiple electronic elements, and are connected by at least one electrical connecting line. The electronic elements form a power supply circuit, in which a bridge rectification module is disposed on the first circuit board and close to the gap. The cooling fan is at least connected to the first circuit board and a second circuit board to locate in the gap, and directly provides the bridge rectification module with a first cooling air current when activated.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: May 8, 2018
    Assignee: ZIPPY TECHNOLOGY CORP.
    Inventors: Chin-Wen Chou, Yung-Hsin Huang, Yu-Yuan Chang, Tzung-Han Lee, Heng-Chia Chang
  • Patent number: 9874589
    Abstract: An inrush current recording module is installed in a power supply unit. The power supply unit has a front-stage power circuit and a back-stage power circuit. The front-stage power circuit includes a first ground terminal, and the back-stage power circuit includes a second ground terminal. The inrush current recording module includes a series circuit and a detection recording unit. The series circuit is formed by a capacitor and a resistor, and includes two ends thereof respectively connected to the first ground terminal and the second ground terminal. The detection recording unit detects the resistor to generate a voltage signal, compares the voltage signal with a voltage determination level, starts timing an inspection period when the voltage signal is greater than the voltage determination level, and records whether a current inrush current is harmful or harmless according to whether a power output signal is obtained within the inspection period.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 23, 2018
    Assignee: ZIPPY TECHNOLOGY CORP.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Kuang-Lung Shih, Wen-Lung Li, Heng-Chia Chang
  • Publication number: 20170308139
    Abstract: A damage identification method for a redundant power supply system is disclosed. The redundant power supply system comprises a plurality of power supply devices and a control unit. In application of the method, the control unit respectively sends switching signals to the power supply devices to boot every power supply device. The control unit checks whether each of the power supply devices sends back a power state signal. If at least one power supply device does not sends back the power state signal, the control unit resends the switching signal to the power supply device to compulsorily reboot the power supply device, which does not output the power state signal. Thereby is solved the problem that the conventional technology cannot instantly exclude temporary abnormalities and causes the user to misjudge the failure of a power supply device.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 26, 2017
    Inventors: Tsun-Te SHIH, Yu-Yuan CHANG, Kuang-Lung SHIH, Heng-Chia CHANG
  • Publication number: 20170308140
    Abstract: A method to avoid over-rebooting of a power supply device comprises Step 1: receiving a power-good signal generated by a power supply device working normally; Step 2: checking whether the power-good signal is received; if no, demanding the power supply device to reboot; and Step 3: recording a count of rebootings of the power supply device; after the power supply device reboots, checking again whether the power-good signal is received; if yes, letting the power supply device keep on working and resetting the count of rebootings; if no, demanding the power supply device to reboot again, accumulating the count of rebootings, and checking whether the count of rebootings is greater than a limited count of rebootings; if yes, forbidding the power supply device to reboot. Thus is solved the problem that a power supply device whose abnormality cannot be removed by rebooting may damage the information device.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 26, 2017
    Inventors: Tsun-Te SHIH, Yu-Yuan CHANG, Kuang-Lung SHIH, Heng-Chia CHANG
  • Publication number: 20170138989
    Abstract: An inrush current recording module is installed in a power supply unit. The power supply unit has a front-stage power circuit and a back-stage power circuit. The front-stage power circuit includes a first ground terminal, and the back-stage power circuit includes a second ground terminal. The inrush current recording module includes a series circuit and a detection recording unit. The series circuit is formed by a capacitor and a resistor, and includes two ends thereof respectively connected to the first ground terminal and the second ground terminal. The detection recording unit detects the resistor to generate a voltage signal, compares the voltage signal with a voltage determination level, starts timing an inspection period when the voltage signal is greater than the voltage determination level, and records whether a current inrush current is harmful or harmless according to whether a power output signal is obtained within the inspection period.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Inventors: TSUN-TE SHIH, YU-YUAN CHANG, KUANG-LUNG SHIH, WEN-LUNG LI, HENG-CHIA CHANG
  • Publication number: 20160308500
    Abstract: A current mirror circuit for biasing a power amplifier includes a modified Wilson current mirror with a pair of first and second mirror transistors connected to a third transistor. The first mirror transistor is configured for operating in a saturation mode, with a gate voltage of the first mirror transistor being lower than a gate voltage of the power amplifier. The third transistor charges the power amplifier circuit during a positive half cycle of an input signal and the first mirror transistor discharges the power amplifier circuit during a negative half cycle of the input signal at different rates.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Sifen Luo, Zhan Xu, Changli Chen, Haitao Li, Heng-chia Chang, Narisi Wang, Jung Ho Yoon
  • Patent number: 9448605
    Abstract: A redundant power supply system providing rapid start of backup includes at least one primary power supply, at least one secondary power supply and a power integration panel. The secondary power supply includes a voltage regulation and energy saving element which has regulation potential after the secondary power supply being booted up. When the secondary power supply is triggered to shut down and the regulation potential is lower than a low voltage judgment criterion, it enters a standby working mode in which the secondary power supply is restarted for a transient working period to charge the voltage regulation and energy saving element. The power integration panel is electrically connected to the primary power supply and the secondary power supply, and inspects output status of the primary power supply and the secondary power supply in regular conditions to determine to boot up or shut down the secondary power supply.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: September 20, 2016
    Assignee: ZIPPY TECHNOLOGY CORP.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Heng-Chia Chang
  • Patent number: 9451721
    Abstract: A modular redundant power supply includes a casing, a power integration panel, a plurality of power supply modules and a power regulation module. The casing has an installation space defined into a first installation zone and a second installation zone. The power integration panel is located in the installation space. The power supply modules are installed on the first installation zone and connected to the power integration panel. Each power supply module outputs a duty power to the power integration panel after being started. The power regulation module gets the duty power from the power integration panel and regulates thereof to generate an auxiliary duty power output to the power integration panel so that the power integration panel can supply the duty power and the auxiliary duty power to an external device.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: September 20, 2016
    Assignee: ZIPPY TECHNOLOGY CORP.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Heng-Chia Chang, Chun-Lung Su
  • Patent number: 9401627
    Abstract: A redundant power supply system providing alternate standby includes at least one primary power supply, at least one secondary power supply and a power integration panel. Each primary power supply receives a first power ON/OFF signal and starts to output a primary duty power. Each secondary power supply receives a second power ON/OFF signal and starts to output a secondary duty power. The power integration panel is electrically connected to the primary power supply and the secondary power supply and has a standby mode to receive a power ON/OFF signal from a motherboard and output alternately at a selected time interval the first power ON/OFF signal to the primary power supply or the second power ON/OFF signal to the secondary power supply to make the primary power supply and the secondary power supply on standby alternately.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: July 26, 2016
    Assignee: Zippy Technology Corp.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Heng-Chia Chang
  • Publication number: 20160105057
    Abstract: A redundant power supply system providing alternate standby includes at least one primary power supply, at least one secondary power supply and a power integration panel. Each primary power supply receives a first power ON/OFF signal and starts to output a primary duty power. Each secondary power supply receives a second power ON/OFF signal and starts to output a secondary duty power. The power integration panel is electrically connected to the primary power supply and the secondary power supply and has a standby mode to receive a power ON/OFF signal from a motherboard and output alternately at a selected time interval the first power ON/OFF signal to the primary power supply or the second power ON/OFF signal to the secondary power supply to make the primary power supply and the secondary power supply on standby alternately.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 14, 2016
    Inventors: Tsun-Te SHIH, Yu-Yuan CHANG, Heng-Chia CHANG
  • Publication number: 20160062431
    Abstract: A redundant power supply system providing rapid start of backup includes at least one primary power supply, at least one secondary power supply and a power integration panel. The secondary power supply includes a voltage regulation and energy saving element which has regulation potential after the secondary power supply being booted up. When the secondary power supply is triggered to shut down and the regulation potential is lower than a low voltage judgment criterion, it enters a standby working mode in which the secondary power supply is restarted for a transient working period to charge the voltage regulation and energy saving element. The power integration panel is electrically connected to the primary power supply and the secondary power supply, and inspects output status of the primary power supply and the secondary power supply in regular conditions to determine to boot up or shut down the secondary power supply.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: Tsun-Te SHIH, Yu-Yuan CHANG, Heng-Chia CHANG
  • Publication number: 20150286274
    Abstract: A power supply device with reduced power consumption is electrically connected to a motherboard. The motherboard outputs a power-on signal or a power-off signal to the power supply device when being triggered. The power supply device includes a standby power supply module which modulates an external power to output a standby power. Upon receiving the power-on signal, the power supply device deactivates the standby power supply module, but activates a main power supply module to modulate the external power to output an operating power to the motherboard to replace the standby power. Upon receiving the power-off signal, the power supply device deactivates the main power supply module, but reactivates the standby power supply module so that the standby power supply module outputs the standby power to the motherboard.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: ZIPPY TECHNOLOGY CORP.
    Inventors: Tsun-Te SHIH, Yu-Yuan CHANG, Heng-Chia CHANG
  • Patent number: 8816532
    Abstract: A redundant power system aims to provide multiple main output power and multiple standby power to drive a plurality of loads operating in an operating mode or a standby mode. The redundant power system includes a plurality of power supplies and a back panel. Each power supply provides a main output power and a standby power. The back panel has a power bus path to converge the main output power. The power bus path is divided into multiple main power output paths each being controlled by a remote ON/OFF switch to determine whether to perform output, and multiple standby power output paths each has a conversion unit located thereon. The conversion unit converts the power in the power bus path and provides a simulated standby power to the loads in a normal.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: August 26, 2014
    Assignee: Zippy Technology Corporation
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Li-Wei Lu, Heng-Chia Chang, Jui-Hao Pan
  • Patent number: 8766759
    Abstract: A transformer comprises a circuit board, an iron core, a winding set and a plurality of magnetic conduction elements. The circuit board has a plurality of electric conduction holes connected via at least one power connection wire. The iron core is located on the circuit board and has a first winding section and a second winding section. The winding set is wound on the first winding section. Each magnetic conduction element has a connecting section located on the iron core and an input section and an output section inserted into the electric conduction holes. The output section of one magnetic conduction element is connected to the input section of another magnetic conduction element through the power connection wire, thereby the magnetic conduction elements and power connection wire form a magnetic conduction winding set which generates magnetic coupling with the winding set through the iron core.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: July 1, 2014
    Assignee: Zippy Technology Corp.
    Inventors: Tsun-Te Shih, Yu-Yuan Chang, Tzung-Han Lee, Heng-Chia Chang