Patents by Inventor GUAN-HONG CHOU

GUAN-HONG CHOU 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).

  • PULSE WIDTH MODULATION CIRCUIT
    Publication number: 20080258834
    Abstract: A pulse width modulation (PWM) circuit includes a turn on/off switch and a PWM controller. The first terminal of the turn on/off switch is coupled to a turn off voltage. The control terminal of the turn on/off switch receives a turn on/off signal to decide whether the circuit between the first terminal and the second terminal of the turn on/off switch is turned on or not. The PWM controller includes a PWM pin and a turn on/off device. The PWM pin is coupled to the second terminal of the turn on/off switch to output a PWM signal. The turn on/off device is coupled to the PWM pin to decide the turn on/off of the PWM controller according to a signal swing state of the PWM pin.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Applicant: WINBOND ELECTRONICS CORP.
    Inventors: CHEN-FAN TANG, CHENG-CHIH WANG, JONG-PING LEE, YI-CHE LIN, LIAN-CHENG TSAI, GUAN-HONG CHOU