Patents by Inventor Thomas Mittleholzer

Thomas Mittleholzer 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).

  • Magnetic tape recording in data format using an efficient reverse concatenated modulation code
    Patent number: 9183852
    Abstract: In one embodiment, a method for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code includes receiving a data stream comprising one or more data sets, separating each data set into a plurality of sub data sets, encoding each sub data set with a C2 encoding, encoding each C2-encoded sub data set with the modulation code, encoding each modulated sub data set with a C1 encoding, and simultaneously writing the encoded modulated sub data sets to data tracks of the magnetic tape. Other methods for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code are described according to various other embodiments.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: November 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Roy D. Cideciyan, Robert A. Hutchins, Thomas Mittleholzer, Sedat Oelcer
  • MAGNETIC TAPE RECORDING IN DATA FORMAT USING AN EFFICIENT REVERSE CONCATENATED MODULATION CODE
    Publication number: 20130326311
    Abstract: In one embodiment, a method for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code includes receiving a data stream comprising one or more data sets, separating each data set into a plurality of sub data sets, encoding each sub data set with a C2 encoding, encoding each C2-encoded sub data set with the modulation code, encoding each modulated sub data set with a C1 encoding, and simultaneously writing the encoded modulated sub data sets to data tracks of the magnetic tape. Other methods for writing data to a magnetic tape utilizing a rate-(232/234) reverse concatenated modulation code are described according to various other embodiments.
    Type: Application
    Filed: February 4, 2013
    Publication date: December 5, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roy D. Cideciyan, Robert A. Hutchins, Thomas Mittleholzer, Sedat Oelcer