-
公开(公告)号：AU4797699A
公开(公告)日：2000-02-14
申请号：AU4797699
申请日：1999-07-21
Applicant: PANASONIC IP CORP AMERICA
Inventor： TAGAWA KENJI , MINAMI MASATAKA , KOZUKA MASAYUKI
Abstract: A digital data recording apparatus for recording digital data on a recording medium, comprises: communication means (100) for receiving encrypted digital data via a digital network; decryption means (105) for decrypting the encrypted digital data that has been received by the communication means; encryption means (110) including a plurality of encryption units (111,112,113) that re-encrypt digital data that has been decrypted by the decryption means in encryption systems having different security levels; recording means (115) for recording digital data that has been re-encrypted by the encryption means on the recording medium; designation reception means (117) for receiving, from a user, an instruction regarding designation of one of the plurality of encryption units, the designation encryption unit being for re-encrypting the digital data that has been decrypted by the decryption means; and a controller (109) for controlling the decryption means, the encryption means and the designation reception means, characterised in that the controller has the designated encryption unit re-encrypt the digital data that has been decrypted by the decryption means.
-
公开(公告)号：AU6005899A
公开(公告)日：2000-04-26
申请号：AU6005899
申请日：1999-10-08
Applicant: PANASONIC IP CORP AMERICA
Inventor： YAMAMOTO MASAYA , NONOMURA TOMOYUKI , MINAMI MASATAKA , KOZUKA MASAYUKI
Abstract: A data processor, comprises an acquiring unit (11) for receiving a network signal Sn from a network (N) and acquiring delivered audio data Dau in which information such as copyright information is embedded, and a control unit (115) for acquiring information representing the electronic watermark method used when the information such as copyright information is embedded. The embedded information is extracted by using an appropriate electronic watermark method according to the acquired electronic watermark information, and thereby the delivered audio data Dau in which the embedded information is embedded by using a predetermined electronic watermark method is recorded on a recording medium. As a result, delivered audio data Dau which is suplied through a network (N) and in which information is embedded even by using any electronic watermark method can be properly reproduced according to the embedded information such as copywright information by a reproducing device, which is a household appliance.
-
Search Results
2
records
(took 0.026 seconds)
