Data rewriting apparatus, control method, and recording medium
AssigneeSony Corporation
InventorsKenichi Iida, Mari Noguchi, Shuji Ohbayashi
Life of this patent
Estimating the term…
Abstract
A data rewriting apparatus, a control method, and a recording medium for rewriting the data stored in a nonvolatile memory limited in rewriting, provided in the apparatus, through the use of a program for executing an update supplied from a detachable recording medium and data used in updating.
Claims16
A data rewriting apparatus having a detachable recording medium which stores update data for updating data stored in the data rewriting apparatus, program data for transferring the update data to the data rewriting apparatus, and discrimination data for discriminating between recording of the update data and the program data, comprising:
- loading means for inserting the detachable recording medium into a main body of the apparatus;
- first memory means for reading and storing the program data for transferring the update data into the data rewriting apparatus recorded on the recording medium;
- detecting means for detecting the discrimination data from the detachable recording medium;
- second memory means provided inside the rewriting apparatus for storing the data to be updated;
- and
- control means for reading out the program data for transferring the update data into the data rewriting apparatus based upon the detected discrimination data from the detachable recording medium, storing the program data into the first memory means when the discriminating data is detected from the detachable recording medium by the detecting means, reading out the updated data recorded on the detachable recording medium based upon the program data stored in the first memory means, and updating the data stored in the second memory means in the data rewriting apparatus.
A control method of storing update data by transferring the update data into a data rewriting apparatus from a detachable recording medium storing update data for updating data stored in the data rewriting apparatus, and utilizing program data for transferring the update data to the data rewriting apparatus, and discrimination data for discriminating recording of the update data and program data, comprising the steps of:
- detecting the discrimination data from the detachable recording medium;
- reading out the program data from the detachable recording medium based upon the detected discrimination data when the discrimination data is detected from the detachable recording medium;
- and
- reading out the update data for updating the data stored in the data rewriting apparatus from the detachable recording medium based upon the program data being read out, and updating the data stored in the data rewriting apparatus with the update data being read out.
Dependencies are inferred from the claim text.