Patents by Inventor Andreas Bandt

Andreas Bandt 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).

  • Semiconductor device including nonvolatile memory
    Patent number: 7983096
    Abstract: A semiconductor device includes a nonvolatile memory configured to store write data in a write-enabled state, a check circuit configured to enable the write data as data for comparison in response to an enabled-status indicating signal indicative of the write-enabled state and to output a result of comparison obtained by comparing data read from the nonvolatile memory with the enabled data for comparison, and a path configured to output the result of comparison output from the check circuit to outside the semiconductor device, wherein no path to output the data read from the nonvolatile memory to outside the semiconductor device is in existence.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 19, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Kenichiro Kuroki, Andreas Bandt
  • Semiconductor device including nonvolatile memory
    Patent number: 7961530
    Abstract: A semiconductor device includes a nonvolatile memory configured to store write data in a write-enabled state, a check circuit configured to enable the write data as data for comparison in response to an enabled-status indicating signal indicative of the write-enabled state and to output a result of comparison obtained by comparing data read from the nonvolatile memory with the enabled data for comparison, and a path configured to output the result of comparison output from the check circuit to outside the semiconductor device, wherein no path to output the data read from the nonvolatile memory to outside the semiconductor device is in existence.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: June 14, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Kenichiro Kuroki, Andreas Bandt
  • SEMICONDUCTOR DEVICE INCLUDING NONVOLATILE MEMORY
    Publication number: 20110134709
    Abstract: A semiconductor device includes a nonvolatile memory configured to store write data in a write-enabled state, a check circuit configured to enable the write data as data for comparison in response to an enabled-status indicating signal indicative of the write-enabled state and to output a result of comparison obtained by comparing data read from the nonvolatile memory with the enabled data for comparison, and a path configured to output the result of comparison output from the check circuit to outside the semiconductor device, wherein no path to output the data read from the nonvolatile memory to outside the semiconductor device is in existence.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 9, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Kenichiro KUROKI, Andreas BANDT
  • SEMICONDUCTOR DEVICE INCLUDING NONVOLATILE MEMORY
    Publication number: 20090316497
    Abstract: A semiconductor device includes a nonvolatile memory configured to store write data in a write-enabled state, a check circuit configured to enable the write data as data for comparison in response to an enabled-status indicating signal indicative of the write-enabled state and to output a result of comparison obtained by comparing data read from the nonvolatile memory with the enabled data for comparison, and a path configured to output the result of comparison output from the check circuit to outside the semiconductor device, wherein no path to output the data read from the nonvolatile memory to outside the semiconductor device is in existence.
    Type: Application
    Filed: April 16, 2009
    Publication date: December 24, 2009
    Applicant: FUJITSU MICROELECTRONICS LIMITED
    Inventors: Kenichiro KUROKI, Andreas BANDT