Patents by Inventor Gan Yao

Gan Yao 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).

  • High sample rate doppler ultrasound system
    Patent number: 6409670
    Abstract: A method for receiving Doppler ultra sound signals at a high sample rate, at greater depths and from a large range gate size by increasing the length of time during which echoes can be received with respect to the time required to transmit the Doppler pulses that cause the echo signals to be created. According to a first embodiment of the invention, a Doppler pulse is transmitted for a time equal to the time required for an ultrasonic sound wave to travel from a transducer to a top of a range gate and back. Echo signals created in response to the long Doppler pulse are received for a time equal to the transmit time plus the time required for an ultrasonic sound wave to travel from the top of the range gate to a bottom of the range gate and back to the top of the range gate.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: June 25, 2002
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Lin Xin Yao, Gan Yao