Patents by Inventor Po Fat Chong

Po Fat Chong 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).

  • Patent number: 8409117
    Abstract: A wearable device (10) to assist with the movement of limbs (50, 51) connected at a joint (52), the device (50) comprising: a linear motion generating unit (20) to generate linear motion, the unit (20) having distal end portions operatively connected to the limbs (50, 51), whereby the linear motion generated by the unit (20) causes the limbs (50, 51) to move and pivot about the joint (52); a force measuring unit (30) to measure a change of force applied to the limbs or linear motion generating unit (20); and a displacement measuring unit (40) to measure the displacement of the linear motion generating unit (20) when linear motion is generated; wherein a predetermined distance of linear motion having a predetermined velocity is generated by the linear motion generating unit (20) to assist with the movement of the limbs (50, 51) based on the change of force measured by the force measuring unit (30) or the displacement measured by the displacement measuring unit (40).
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: April 2, 2013
    Assignee: The Hong Kong Polytechnic University
    Inventors: Ching-Hsiang Cheng, Po Fat Chong, King Sau Wong
  • Publication number: 20100069798
    Abstract: A wearable device (10) to assist with the movement of limbs (50, 51) connected at a joint (52), the device (50) comprising: a linear motion generating unit (20) to generate linear motion, the unit (20) having distal end portions operatively connected to the limbs (50, 51), whereby the linear motion generated by the unit (20) causes the limbs (50, 51) to move and pivot about the joint (52); a force measuring unit (30) to measure a change of force applied to the limbs or linear motion generating unit (20); and a displacement measuring unit (40) to measure the displacement of the linear motion generating unit (20) when linear motion is generated; wherein a predetermined distance of linear motion having a predetermined velocity is generated by the linear motion generating unit (20) to assist with the movement of the limbs (50, 51) based on the change of force measured by the force measuring unit (30) or the displacement measured by the displacement measuring unit (40).
    Type: Application
    Filed: September 15, 2008
    Publication date: March 18, 2010
    Inventors: Ching-Hsiang Cheng, Po Fat Chong, King Sau Wong