Patents by Inventor Lao-To Yin

Lao-To Yin 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).

  • Electronic apparatus capable of using an external power source and a bus power source simultaneously
    Patent number: 6934863
    Abstract: An electronic apparatus capable of using an external power source and a power source from a bus, such as a universal serial bus (USB) power source, is disclosed. The external power source and the USB power source output a first and a second operating voltage to the electronic apparatus, respectively. The electronic apparatus includes a first group of devices operative at the first operating voltage, a second group of devices operative at the second operating voltage, and an input power control circuit. The input power control circuit is coupled to the first and second groups of devices, and is capable of being coupled to the external and the USB power sources. The input power control circuit is used for controlling the first and the second operating voltages in order to feed the first and second groups of devices with the first and the second operating voltages, respectively.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: August 23, 2005
    Assignee: BENQ Corporation
    Inventor: Lao-To Yin
  • Electronic apparatus capable of using an external power source and a bus power source simultaneously
    Publication number: 20030074588
    Abstract: An electronic apparatus capable of using an external power source and a power source from a bus, such as a universal serial bus (USB) power source, is disclosed. The external power source and the USB power source output a first and a second operating voltage to the electronic apparatus, respectively. The electronic apparatus includes a first group of devices operative at the first operating voltage, a second group of devices operative at the second operating voltage, and an input power control circuit. The input power control circuit is coupled to the first and second groups of devices, and is capable of being coupled to the external and the USB power sources. The input power control circuit is used for controlling the first and the second operating voltages in order to feed the first and second groups of devices with the first and the second operating voltages, respectively.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 17, 2003
    Inventor: Lao-To Yin