Data transfer system, data transfer device, data recording device and data transfer method
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Abstract
It is an object to provide an efficient transfer of content data. In a case of transferring the content data from a data transfer device on a primary recording medium side to a data recording device to record the content data in a secondary recording medium, a data compression system and a bit rate that are conformable to the data recording device are compared with a data compression system and a bit rate of the content data to be sent, so that a required transfer processing is brought into realization according to a result of the comparison. For instance, when both the data compression systems are equal, and the bit rate of the content data is not more than the bit rate that is conformable to the data recording device, the content data is sent as it is in an encrypted compressed data state.
17 Citations
10 Claims
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1-7. -7. (canceled)
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8. A data recording device, comprising:
- reception means for receiving data sent from a data transfer device connected thereto;
secondary recording medium drive means for recording data in a secondary recording medium;
decrypting means for converting encrypted content data having been transferred from said data transfer device into a non-encrypted state; and
recording control means for allowing said secondary recording medium drive means to record compressed data already converted into the non-encrypted state by said decrypting means in said secondary recording medium after performing a required data addition processing on said compressed data in a case of the content data having been received in the encrypted compressed state from said data transfer device, while allowing said secondary recording medium drive means to record non-compressed data already converted into the non-encrypted state by said decrypting means in said secondary recording medium after performing a compression processing on said non-compressed data in a case of the content data having been received in the encrypted non-compressed data state from said data transfer device. - View Dependent Claims (9)
- reception means for receiving data sent from a data transfer device connected thereto;
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10. (Canceled).
Specification