Patents by Inventor Carol Wu

Carol Wu 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).

  • Filtering audio signals from a combined microphone/speaker earpiece
    Patent number: 5949891
    Abstract: An audio processing system applies a filter to convert the audio signals generated by the microphone of a combined microphone/speaker earpiece into filtered audio signals, where the filter is designed to correct for distortions in the audio signals that result from the microphone being part of the combined earpiece.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: September 7, 1999
    Assignee: Intel Corporation
    Inventors: Larry Wagner, Carol Wu
  • Processing audio signals using a discrete state machine
    Patent number: 5592547
    Abstract: A level of transmit attenuation and a level of receive attenuation are generated using a discrete state machine of a controller. Local audio signals generated with a local microphone are attenuated with a transmit attenuator at the level of transmit attenuation for transmission to a remote node. Remote audio signals received from the remote node are attenuated with a receive attenuator at the level of receive attenuation for playback at a local speaker.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: January 7, 1997
    Assignee: Intel Corporation
    Inventors: Carol Wu, Seo P. Ng
  • Camera with attachment support
    Patent number: D552144
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: October 2, 2007
    Assignee: Logitech Europe S.A.
    Inventors: Andy Logan, Mark Martinez, Martin Wang, Carol Wu, Kenneth Ling
  • Camera with scroll wheel
    Patent number: D552649
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: October 9, 2007
    Assignee: Logitech Europe S.A.
    Inventors: Andy Logan, Mark Martinez, Martin Wang, Carol Wu, Kenneth Ling
  • Web cam with stand
    Patent number: D651229
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: December 27, 2011
    Assignee: Logitech Europe S.A.
    Inventors: Xiejun Tan, Carol Wu, Claire Chen
  • Web cam with stand
    Patent number: D651230
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: December 27, 2011
    Assignee: Logitech Europe S.A.
    Inventors: Xiejun Tan, Carol Wu, Claire Chen