Patents by Inventor Ching-Jung Tseng

Ching-Jung Tseng 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).

  • LED bulb, light emitting device control method, and light emitting device controller circuit with dimming function adjustable by AC signal
    Patent number: 8513894
    Abstract: The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: August 20, 2013
    Assignee: Richtek Technology Corporation, R.O.C.
    Inventors: Pei-Cheng Huang, Ching-Jung Tseng, Jing-Meng Liu
  • Multi-output switching regulator and control method therefor
    Patent number: 8106531
    Abstract: The present invention discloses a multi-output switching regulator, comprising: a single-input-multiple-output voltage converter converting an input voltage to a first output voltage at a first node and a second output voltage at a second node; an input capacitor connected with the input voltage at an input node; a first output capacitor having two ends, one of which is connected with the first node; and a second output capacitor having two ends, one of which is connected with the second node; wherein the other end of the first output capacitor is connected to ground, the input node or the second node, and the other end of the second output capacitor is connected to ground, the input node or the first node.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: January 31, 2012
    Assignee: Richtek Technology Corporation
    Inventors: Ching-Jung Tseng, Jui-Li Lan, Jing-Meng Liu
  • Multi-output Switching regulator and control method therefor
    Publication number: 20100164282
    Abstract: The present invention discloses a multi-output switching regulator, comprising: a single-input-multiple-output voltage converter converting an input voltage to a first output voltage at a first node and a second output voltage at a second node; an input capacitor connected with the input voltage at an input node; a first output capacitor having two ends, one of which is connected with the first node; and a second output capacitor having two ends, one of which is connected with the second node; wherein the other end of the first output capacitor is connected to ground, the input node or the second node, and the other end of the second output capacitor is connected to ground, the input node or the first node.
    Type: Application
    Filed: December 2, 2009
    Publication date: July 1, 2010
    Inventors: Ching-Jung Tseng, Jui-Li Lan, Jing-Meng Liu
  • Led bulb, light emitting device control method, and light emitting device controller circuit with dimming function adjustable by AC signal
    Publication number: 20100066266
    Abstract: The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 18, 2010
    Inventors: Pei-Cheng Huang, Ching-Jung Tseng, Jing-Meng Liu
  • Video cassette for a portable video game
    Patent number: D350951
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: September 27, 1994
    Inventor: Ching-Jung Tseng