Patents by Inventor Aigang Feng

Aigang Feng 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: 9405467
    Abstract: An adaptive guard band for a ramp load/unload device is disclosed to provide extended data storage. In illustrated embodiments, an adaptive guard band algorithm is configured to format one or more discs or media having a lower capacity device with the adaptive guard band and extended data zone utilizing capacity measurements. The algorithm formats the media to provide a track zero at a first cylinder if the capacity is at or above the threshold capacity and a second cylinder if the capacity is below the threshold capacity to provide the extended data storage zone. A size or width of the extended data zone is variable to provide additional capacity to meet the threshold capacity.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: August 2, 2016
    Assignee: Seagate Technology LLC
    Inventors: Aigang Feng, FongKheon Chong, MyintNgwe Maung, SienHuay Chong, James Joseph Touchton, Abhay T. Kataria, Haejung Lee, Taesik Kang
  • Patent number: 9099135
    Abstract: Methods including determining a distribution of a position error signal (PES) of a magnetoresistive head by obtaining PES data from a servo controller associated with the magnetoresistive head; determining an encroachment function of a storage disc; and determining a track density of the storage disc by considering both the PES distribution and the encroachment function.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: August 4, 2015
    Assignee: Seagate Technology LLC
    Inventors: HaoJi Bao, Aigang Feng, Myint Ngwe
  • Publication number: 20150121031
    Abstract: An adaptive guard band for a ramp load/unload device is disclosed to provide extended data storage. In illustrated embodiments, an adaptive guard band algorithm is configured to format one or more discs or media having a lower capacity device with the adaptive guard band and extended data zone utilizing capacity measurements. The algorithm formats the media to provide a track zero at a first cylinder if the capacity is at or above the threshold capacity and a second cylinder if the capacity is below the threshold capacity to provide the extended data storage zone. A size or width of the extended data zone is variable to provide additional capacity to meet the threshold capacity.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Inventors: Aigang Feng, FongKheon Chong, MyintNgwe Maung, SienHuay Chong, James Joseph Touchton, Abhay T. Kataria, Haejung Lee, Taesik Kang