Recording and reproducing apparatus provided in each data block with a secret information number
AssigneeOlympus Optical Co., Ltd.
InventorToshio Horiguchi
Life of this patent
Estimating the term…
Abstract
An optical card apparatus including a recording device for recording in each of a plurality of data blocks in a card-like recording medium user data to be recorded along with data protecting information inhibiting the user data from being carelessly read out, and a reproducing device for reproducing the user data and data protecting information recorded in the recording medium. A data transfer controlling device for permitting the user data to be read out only in case the input secret information data coincide with the data protecting information recorded in the recording medium in the case of reproducing the user data with this reproducing device.
Claims19
An optical card recording and reproducing apparatus comprising:
- a card-like recording medium having a plurality of linear tracks on which are formed respectively an ID part in which discriminating information is recorded and a part which is discriminated by said discriminating information and in which user information is recorded/reproduced;
- a recording means for recording protecting information including a secret information data for inhibiting the reproduction of said user information except said protecting information recorded in each of a plurality of data sectors dividing the data part of the linear tracks of said card-like recording medium;
- a reproducing means for reproducing said user information recorded in said card-like recording medium and said protecting information;
- a secret information data inputting means for inputting said secret information data;
- a judging means for judging whether or not the secret information data input by said secret information data inputting means and the secret information data reproduced by said reproducing means coincide with each other;
- and
- an inhibiting means inhibiting the function of either displaying or transferring the reproduced user information reproduced by said reproducing means in case said judging means does not judge that the input secret information data and the reproduced secret information data coincide with each other.
A recording and reproducing apparatus comprising:
- a recording medium having a plurality of tracks on which are formed respectively an ID part in which discriminating information is recorded and a part which is discriminated by said discriminating information and in which user information is recorded/reproduced;
- a recording means for recording protecting information including secret information data for inhibiting the reproduction of said user information except said protecting information recorded in each of a plurality of data sectors dividing the data part of said recording medium;
- a reproducing means for reproducing said user information and protecting information recorded in said recording medium;
- a secret information data inputting means for inputting said secret information data;
- a judging means for judging whether or not the secret information data input by said secret information data inputting means and the secret information data reproduced by said reproducing means coincide with each other;
- and
- an inhibiting means inhibiting the function of either displaying or transferring the reproduced user information reproduced by said reproducing means in case said judging means does not judge that the reproduced secret information data and the input secret information data coincide with each other.
Dependencies are inferred from the claim text.