Recording device and method, reproducing device and method, and storage medium
First Claim
1. A recording apparatus comprising:
- input means for inputting encryption data; and
recording means for recording said encryption data which is inputted into a data area on a memory medium having the data area, a lead-in area, and a lead-out area and recording additional information corresponding to said encryption data into said lead-out area.
1 Assignment
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Accused Products
Abstract
Data areas AR1 and AR2, lead-in areas LIN1 and LIN2, and lead-out areas LOUT1 and LOUT2 are provided on a disc. For example, in case of encrypting and recording data into the data area AR2, copyright management information R2 and key information K2 are recorded into the lead-out area LOUT2. Only information in a Q channel of a subcode is recorded in the lead-out area and this area is filled with dummy data. A position of the lead-out is obtained from TOC information. The fact that a light spot has entered the lead-out area can be judged from the information in the Q channel. The copyright management information and key information are recorded by using the lead-out area. The lead-out area is not rewritten or accessed by an ordinary CD player, so that the copyright management information and the key information can be safely held.
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Citations
52 Claims
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1. A recording apparatus comprising:
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input means for inputting encryption data; and
recording means for recording said encryption data which is inputted into a data area on a memory medium having the data area, a lead-in area, and a lead-out area and recording additional information corresponding to said encryption data into said lead-out area. - View Dependent Claims (2, 3, 4)
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5. A recording apparatus comprising:
input means for inputting encryption data; and
recording means for recording said encryption data which is inputted into data areas on a memory medium having the plurality of data areas, a plurality of lead-in areas, and a plurality of lead-out areas and recording additional information corresponding to said encryption data into one of said plurality of lead-in areas or one of said plurality of lead-out areas.- View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A reproducing apparatus comprising:
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reading means for reading out said stored encryption data from a data area on a,memory medium having the data area, a lead-in area, and a lead-out area and reading out additional information stored in said lead-out area; and
reproducing means for reproducing said encryption data in accordance with said read-out additional information. - View Dependent Claims (21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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24. A reproducing apparatus comprising:
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reading means for reading out encryption data from one of a plurality of data areas on a memory medium having the plurality of data areas, a plurality of lead-in areas, and a plurality of lead-out areas and reading out additional information corresponding to said encryption data from one of said plurality of lead-in areas or one of said plurality of lead-out areas; and
reproducing means for reproducing said encryption data in accordance with said read-out additional information.
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39. A recording method comprising the steps of:
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inputting encryption data;
recording said encryption data which is inputted into a data area on a memory medium having the data area, a lead-in area, and a lead-out area; and
recording additional information corresponding to said encryption data into said lead-out area.
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40. A recording method comprising the steps of:
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inputting encryption data;
recording said encryption data which is inputted into data areas on a memory medium having the plurality of data areas, a plurality of lead-in areas, and a plurality of lead-out areas; and
recording additional information corresponding to said encryption data into one of said plurality of lead-in areas or one of said plurality of lead-out areas.
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41. A reproducing method comprising the steps of:
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reading out said stored encryption data from a data area on a memory medium having the data area, a lead-in area, and a lead-out area;
reading out additional information stored in said lead-out area; and
reproducing said encryption data in accordance with said read-out additional information. - View Dependent Claims (42, 43)
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44. A reproducing method comprising the steps of:
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reading out encryption data from one of a plurality of data areas on a memory medium having the plurality of data areas, a plurality of lead-in areas, and a plurality of lead-out areas;
reading out additional information corresponding to said encryption data from one of said plurality of lead-in areas or one of said plurality of lead-out areas; and
reproducing said encryption data in accordance with said read-out additional information. - View Dependent Claims (45, 46, 48, 49)
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47. A memory medium
which has a data area, a lead-in area, and a lead-out area and in which encryption data is recorded into said data area and additional information corresponding to said encryption data is recorded into said lead-out area.
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50. A memory medium
which has a plurality of data areas, a plurality of lead-in areas, and a plurality of lead-out areas and in which said encryption data which is inputted into said data areas is recorded and additional information corresponding to said encryption data is recorded into one of said plurality of lead-in areas or one of said plurality of lead-out areas.
Specification