Patents by Inventor Yi-Hua Lee

Yi-Hua Lee 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: 20250204680
    Abstract: A furniture assembly includes a plurality of segmental portions configured to be stackable one on top of another to form a complete furniture body. Each segmental portion includes at least one drawer, at least one interlocking mechanism, and at least one securing member for stabilizing the segmental portions and preventing unintended disassembly. The interlocking mechanism includes a locking bar slidably disposed on a side panel of the segmental portion, having a plurality of spaced protrusions distributed along a length of the locking bar, and a rotatable block having a first portion pivotably connected to the side panel of the segmental portion, a second portion engageable by a sliding mechanism of a respective drawer, and a third portion that is engageable with one of the protrusions. The locking bars of two adjacent segmental portions are connected by a detachable connector.
    Type: Application
    Filed: December 19, 2024
    Publication date: June 26, 2025
    Inventor: Yi Hua LEE
  • Patent number: 8749185
    Abstract: A ventilation apparatus with a two-section feedback compensation control and a method for operating the same are disclosed. The ventilation apparatus includes a power conversion unit, a driven circuit, a DC motor, a current-sensing unit, a voltage compensation unit, and a control unit. The power conversion unit receives and converts an AC power voltage into a DC power voltage. The driven circuit receives the DC power voltage and outputs a driven voltage. The DC motor is driven through the driven voltage. The current-sensing unit senses an output current of the DC motor. The control unit receives the output current to compare to a threshold current value, thus controlling the voltage compensation unit. Accordingly, the DC power voltage is adjusted to adjust the speed of the DC motor.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Yi-Hua Lee, Yueh-Shan Lin, Yan-Lin Chen, Chih-Hua Lin, Te-Chung Liu
  • Patent number: 8624441
    Abstract: A control circuit of a cycling switch for controlling an electronic equipment includes a switch loop, a first control loop and a second control loop. The switch loop generates a driving signal to drive the electronic equipment. The first control loop is electrically connected with the switch loop and the electronic equipment respectively, and generates a first control signal according to a variation of the driving signal. The second control loop is electrically connected with the first control loop and the electronic equipment respectively. The second control loop has a storage unit which charges and discharges according to the first control signal, so that the second control loop generates a second control signal. The second control signal is inputted to the first control loop and controls the electronic equipment. A control method applied to the control circuit of the cycling switch is also disclosed.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: January 7, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Te-Chung Liu, Yi-Hua Lee
  • Patent number: 8621924
    Abstract: A humidity sensing circuit with temperature compensation includes a wave producing module, a phase processing module, a sensing module and a detecting module. The wave producing module outputs a wave signal. The phase processing module outputs an oscillatory wave and an invert oscillatory wave according to the wave signal. The sensing module has a temperature sensor and a humidity sensor which are connected in series. The temperature sensor and the humidity sensor respectively receive the oscillatory wave and the invert oscillatory wave. The sensing module outputs a parameter signal according to the oscillatory wave and the invert oscillatory wave. The detecting module outputs a detection signal according to the parameter signal. Hence, the humidity sensing circuit with temperature compensation senses the temperature and humidity by the simple circuit design. Moreover, it is feasible for circuit design and application.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: January 7, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Te-Chung Liu, Yi-Hua Lee
  • Publication number: 20120299525
    Abstract: A ventilation apparatus with a two-section feedback compensation control and a method for operating the same are disclosed. The ventilation apparatus includes a power conversion trait (10), a driven circuit (20), a DC motor (30), a current-sensing unit (40), a voltage compensation unit (60), and a control unit (50). The power conversion unit (10) receives and converts an AC power voltage (Vac) into a DC power voltage (Vo). The driven circuit (20) receives the DC power voltage (Vo) and outputs a driven voltage. The DC motor (30) is driven through the driven voltage. The current-sensing unit (40) senses an output current of the DC motor (30). The control unit (50) receives the output current to compare to a threshold current value, thus controlling the voltage compensation unit (60). Accordingly, the DC power voltage (Vo) is adjusted to adjust the speed of the DC motor (30).
    Type: Application
    Filed: September 30, 2011
    Publication date: November 29, 2012
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Yi-Hua LEE, Yueh-Shan LIN, Yan-Lin CHEN, Chih-Hua LIN, Te-Chung LIU
  • Publication number: 20110148508
    Abstract: A control circuit of a cycling switch for controlling an electronic equipment includes a switch loop, a first control loop and a second control loop. The switch loop generates a driving signal to drive the electronic equipment. The first control loop is electrically connected with the switch loop and the electronic equipment respectively, and generates a first control signal according to a variation of the driving signal. The second control loop is electrically connected with the first control loop and the electronic equipment respectively. The second control loop has a storage unit which charges and discharges according to the first control signal, so that the second control loop generates a second control signal. The second control signal is inputted to the first control loop and controls the electronic equipment. A control method applied to the control circuit of the cycling switch is also disclosed.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Inventors: Te-Chung LIU, Yi-Hua Lee
  • Publication number: 20110138908
    Abstract: A humidity sensing circuit with temperature compensation includes a wave producing module, a phase processing module, a sensing module and a detecting module. The wave producing module outputs a wave signal. The phase processing module outputs an oscillatory wave and an invert oscillatory wave according to the wave signal. The sensing module has a temperature sensor and a humidity sensor which are connected in series. The temperature sensor and the humidity sensor respectively receive the oscillatory wave and the invert oscillatory wave. The sensing module outputs a parameter signal according to the oscillatory wave and the invert oscillatory wave. The detecting module outputs a detection signal according to the parameter signal. Hence, the humidity sensing circuit with temperature compensation senses the temperature and humidity by the simple circuit design. Moreover, it is feasible for circuit design and application.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 16, 2011
    Inventors: Te-Chung LIU, Yi-Hua Lee