Patents by Inventor Nelson Cheng

Nelson Cheng 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: 20240143723
    Abstract: An information handling system may include at least one processor, an input device, and a display device. The information handling system may be configured to: prior to booting an operating system, display a displayable identifier on the display device, wherein the displayable identifier encodes information indicative of a system identifier of the information handling system, a time, and an encrypted shared secret, and wherein the displayable identifier is usable by a mobile information handling system to determine an access password for the information handling system; and in response to receiving the access password at the input device, booting the operating system.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 2, 2024
    Applicant: Dell Products L.P.
    Inventors: Ganesh Kuppuswamy VISWANATHAN, Nelson CHENG, Volker NADOLSKI
  • Patent number: 11216552
    Abstract: An information handling system includes a basic input/output system that checks for a first-time password in NVRAM, and prompts a user for a password when the first-time password is present. A processor compares the password to the first-time password, deletes the first-time password from the NVRAM when the password matches the first-time password, and boots the information handling system when the password matches the first-time password.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: January 4, 2022
    Assignee: Dell Products L.P.
    Inventors: Wei G Liu, Nelson Cheng
  • Publication number: 20210110026
    Abstract: An information handling system includes a basic input/output system that checks for a first-time password in NVRAM, and prompts a user for a password when the first-time password is present. A processor compares the password to the first-time password, deletes the first-time password from the NVRAM when the password matches the first-time password, and boots the information handling system when the password matches the first-time password.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 15, 2021
    Inventors: Wei G Liu, Nelson Cheng
  • Publication number: 20180202110
    Abstract: The present invention relates to the chemical composition of an anti-corrosion mineral paper which consists mineral powders, anti-static agents, UV inhibitors, synergistic corrosion inhibitors and synthenic polymers binder.
    Type: Application
    Filed: July 31, 2015
    Publication date: July 19, 2018
    Inventor: Nelson CHENG KIT YEW
  • Patent number: 8169730
    Abstract: A hard disk drive (HDD) comprising a magnetic disk that includes a data storage surface and an external magnetic field parallel to the data storage surface for suppressing track interference.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 1, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
    Inventors: Nelson Cheng, Lakshmi Ramamoorthy, Kris Schouterden, Masayoshi Shimokoshi
  • Publication number: 20110149427
    Abstract: A hard disk drive (HDD) comprising a magnetic disk that includes a data storage surface and an external magnetic field parallel to the data storage surface for suppressing track interference.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Inventors: Nelson Cheng, Lakshmi Ramamoorthy, Kris Schouterden, Masayoshi Shimokoshi
  • Patent number: 7920359
    Abstract: Embodiments of the present invention achieve a high linear recording density and a high track recording density to thereby improve the areal recording density in a perpendicular magnetic recording apparatus having a magnetic head that includes a trailing shield and side shields around a main magnetic pole piece.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 5, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yohji Maruyama, Nelson Cheng, Hideki Zaitsu, Hisao Okamoto
  • Patent number: 7567400
    Abstract: An apparatus and method for improving the error rate of track information on a magnetic storage device is disclosed. One embodiment provides a counter for counting the number of writes to a first track on a magnetic storage device. In addition, a re-read and re-write initiator is provided for reading information from a second track adjacent to the first track and re-writing the information read from the second track back to said magnetic storage device when said counter reaches a pre-defined number of writes for the fist track.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: July 28, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventor: Nelson Cheng
  • Publication number: 20080180861
    Abstract: Embodiments of the present invention achieve a high linear recording density and a high track recording density to thereby improve the areal recording density in a perpendicular magnetic recording apparatus having a magnetic head that includes a trailing shield and side shields around a main magnetic pole piece.
    Type: Application
    Filed: January 31, 2008
    Publication date: July 31, 2008
    Inventors: Yohji Maruyama, Nelson Cheng, Hideki Zaitsu, Hisao Okamoto
  • Publication number: 20060245102
    Abstract: An apparatus and method for improving the error rate of track information on a magnetic storage device is disclosed. One embodiment provides a counter for counting the number of writes to a first track on a magnetic storage device. In addition, a re-read and re-write initiator is provided for reading information from a second track adjacent to the first track and re-writing the information read from the second track back to said magnetic storage device when said counter reaches a pre-defined number of writes for the fist track.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 2, 2006
    Inventor: Nelson Cheng
  • Patent number: 6697203
    Abstract: A method and apparatus for determining a lifetime for a medium to fail due to thermal decay of a magnetization pattern is provided. Different stress magnetic fields are applied to a write head for writing to a machine-readable medium resulting in a magnetic field on the medium. A time to failure, corresponding to each of the different stress magnetic fields, is determined, the time to failure being an amount of time for an amplitude of a signal on the medium to degrade beyond a predetermined failure criteria. A time to failure without a stress magnetic field is determined based on the corresponding times to failure determined for each of the different stress currents.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: February 24, 2004
    Assignee: Maxtor Corporation
    Inventors: Nelson Cheng, Bill Higgins, Hai Nguy, Steven Stupp, Steven Lambert
  • Patent number: 6445527
    Abstract: Multi-head disk drive system measures head resistances and selects lowest-resistance heads for track-servo operation during sleep mode, thereby substantially prolonging EM lifetime, improving field failure rate, unit production costs, and drive performance and yields.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: September 3, 2002
    Assignee: Maxtor Corporation
    Inventor: Nelson Cheng