Patents by Inventor Chang-Tao Zhong

Chang-Tao Zhong 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).

  • Imaging device capable of retracting lens unit thereof and lens unit protecting method thereof
    Patent number: 7760451
    Abstract: An imaging device includes a housing, a lens unit, a detection unit, a central processing unit and a driving unit. The lens unit is configured for moving between a first position where the lens unit is received in the housing, and a second position where the lens unit extends from the housing. The detection unit is configured for detecting a current acceleration of the imaging device. The central processing unit is configured for receiving the current acceleration and generating a low driving voltage value if the current acceleration is smaller than a predetermined value and a high driving voltage value if the current acceleration is equal to or greater than the predetermined value. The driving unit is configured for receiving the generated driving voltage value from the central processing unit and retracting the lens unit from the second position to the first position based on the driving voltage.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: July 20, 2010
    Assignees: Premier Image Technology (China) Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Zhen Hou, Chang-Tao Zhong, An-Fei Fu
  • IMAGING DEVICE CAPABLE OF RETRACTING LENS UNIT THEREOF AND LENS UNIT PROTECTING METHOD THEREOF
    Publication number: 20090195889
    Abstract: An imaging device includes a housing, a lens unit, a detection unit, a central processing unit and a driving unit. The lens unit is configured for moving between a first position where the lens unit is received in the housing, and a second position where the lens unit extends from the housing. The detection unit is configured for detecting a current acceleration of the imaging device. The central processing unit is configured for receiving the current acceleration and generating a low driving voltage value if the current acceleration is smaller than a predetermined value and a high driving voltage value if the current acceleration is equal to or greater than the predetermined value. The driving unit is configured for receiving the generated driving voltage value from the central processing unit and retracting the lens unit from the second position to the first position based on the driving voltage.
    Type: Application
    Filed: August 25, 2008
    Publication date: August 6, 2009
    Applicants: PREMIER IMAGE TECHNOLOGY(CHINA) LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: ZHEN HOU, CHANG-TAO ZHONG, AN-FEI FU