Patents by Inventor Henry Liou

Henry Liou 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).

  • Publication number: 20050037777
    Abstract: A GPS-microphone, which is adapted for incorporating a communication system, includes a speaker-microphone set, a radio frequency transmitter communicatively networked with the communication system through radio frequency signals, and a GPS controller electrically connected with the radio frequency transmitter to encode positioning data into one or more RF positioning signals in form of audio signals wherein when the GPS controller is triggered, the radio frequency transmitter is activated to transmit RF positioning signals to the communication system.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 17, 2005
    Inventor: Henry Liou
  • Publication number: 20040164894
    Abstract: A GPS microphone, which is adapted for incorporating a communication system, includes a speaker-microphone set, a radio frequency transmitter communicatively networked with the communication system through radio frequency signals, and a GPS controller electrically connected with the radio frequency transmitter to encode positioning data into one or more RF positioning signals in form of audio signals wherein when the GPS controller is triggered, the radio frequency transmitter is activated to transmit RF positioning signals to the communication system.
    Type: Application
    Filed: May 12, 2003
    Publication date: August 26, 2004
    Inventor: Henry Liou
  • Publication number: 20040164893
    Abstract: A GPS microphone, which is adapted for incorporating a communication system, includes a speaker-microphone set, a radio frequency transmitter communicatively networked with the communication system through radio frequency signals, and a GPS controller electrically connected with the radio frequency transmitter to encode a positioning data into a RF positioning signal in form of audio signal wherein when the GPS controller is triggered, the radio frequency transmitter is activated to transmit RF positioning signal to the communication system.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventor: Henry Liou