Patents by Inventor Yihjye Twu

Yihjye Twu 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).

  • USB device, an attached protective cover therefore including an antenna and a method of wirelessly transmitting data
    Patent number: 7777689
    Abstract: An attached protective cover of a USB device, a USB device and a method of wirelessly transmitting data. In one embodiment, the attached protective cover of a USB device includes a cap with an associated antenna and is configured to protect a USB plug of the USB device. Additionally, the cap includes a link configured to provide a physical connection between the cap and a body of the USB device and an electrical connection between the antenna and a wireless connection system included within the body.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: August 17, 2010
    Assignee: Agere Systems Inc.
    Inventors: Roger A. Fratti, Yihjye Twu
  • Comparator-based drivers for LCD displays and the like
    Patent number: 7561137
    Abstract: A comparator-based driver has a configurable inverter that inverts one of the comparator output signals for application to the gate of a driver transistor used to generate the driver output signal. The configurable inverter can be selectively configured to provide any one of at least two different inverter logic threshold levels. In one possible operational scenario, the configurable inverter is configured such that the inverter logic threshold level is equivalent to the comparator's differential common-mode voltage to provide relatively high driver symmetry. The configurable inverter is then configured to provide a different inverter logic threshold level that is greater than the comparator's differential common-mode voltage to inhibit chattering in the driver output signal.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: July 14, 2009
    Assignee: Agere Systems Inc.
    Inventors: Roger A. Fratti, Yihjye Twu
  • USB DEVICE, AN ATTACHED PROTECTIVE COVER THEREFORE INCLUDING AN ANTENNA AND A METHOD OF WIRELESSLY TRANSMITTING DATA
    Publication number: 20080136737
    Abstract: An attached protective cover of a USB device, a USB device and a method of wirelessly transmitting data. In one embodiment, the attached protective cover of a USB device includes a cap with an associated antenna and is configured to protect a USB plug of the USB device. Additionally, the cap includes a link configured to provide a physical connection between the cap and a body of the USB device and an electrical connection between the antenna and a wireless connection system included within the body.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 12, 2008
    Applicant: Agere Systems Inc.
    Inventors: Roger A. Fratti, Yihjye Twu
  • Comparator-based drivers for LCD displays and the like
    Publication number: 20060290635
    Abstract: A comparator-based driver has a configurable inverter that inverts one of the comparator output signals for application to the gate of a driver transistor used to generate the driver output signal. The configurable inverter can be selectively configured to provide any one of at least two different inverter logic threshold levels. In one possible operational scenario, the configurable inverter is configured such that the inverter logic threshold level is equivalent to the comparator's differential common-mode voltage to provide relatively high driver symmetry. The configurable inverter is then configured to provide a different inverter logic threshold level that is greater than the comparator's differential common-mode voltage to inhibit chattering in the driver output signal.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 28, 2006
    Inventors: Roger Fratti, Yihjye Twu