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Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods

a technology of recording which is applied in the field of recording equipment, reproduction equipment, data processing equipment, recording and reproduction equipment and data transmission equipment and corresponding methods, and can solve problems such as unsatisfactory elimination of data, no concrete system of copyright protection, and overwriting the data that is recorded in the hdd

Inactive Publication Date: 2007-04-26
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a recording apparatus, a reproduction apparatus, and methods for protecting copyright in data that is recorded or copied. The invention takes into consideration the problem of copyright infringement in viewing a program with a delay relative to its original broadcast time. The invention solves this problem by encrypting data and controlling the recording and reproduction of the data. The encryption is done using a unique key or a copy permission key that is specific to the recording apparatus. The invention also provides a data processing apparatus for moving or copying data to another recording medium while protecting the copyright. The invention also includes a recording apparatus, recording apparatus, recording and decryption apparatus, and methods for protecting copyright in data that is recorded or copied. The technical effects of the invention include preventing copyright infringement and ensuring data security."

Problems solved by technology

How the copyright is protected, however, is not concretely determined in the case that AV data that requires copyright protection is recorded in and / or reproduced from a recording apparatus and / or reproduction apparatus.
How the copyright is protected, however, is not concretely determined in the case that the above described data that requires copyright protection is recorded in and / or reproduced from a recording apparatus and / or reproduction apparatus.
That is to say, there is a problem wherein there is no concrete system that protects the copyright in the case that AV data, document data or data such as computer programs are recorded in a recording apparatus and / or in the case that these types of data are reproduced in a reproduction apparatus.
However, the user of the HDD considers that overwriting the data that is recorded in the HDD or the elimination of the data is not desirable and, in some cases, the user considers it desirable to copy the data recorded in the HDD in another recording medium.
On the other hand, as described above, the copyright holder is negatively affected when the data recorded in the HDD is copied by ignoring the copyright.
That is to say, in the case that data, for which copyright protection is necessary, is recorded in a recording apparatus such as an HDD, there is a problem that the user cannot copy the data to another recording medium.
In a conventional recording and reproduction apparatus, however, a problem arises in that there is a risk that the recording of a program in the recording medium 2130 in order to implement a time shift reproduction causes an infringement of the copyright with respect to the program, when the copyright is taken into consideration as described above.
That is to say, a problem arises in that there is a risk that an infringement of the copyright with respect to a program, for which copyright protection is necessary, may be caused in the case that a time shift reproduction of the program is implemented.

Method used

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  • Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods
  • Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods
  • Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods

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first embodiment

[0401] (First Embodiment)

[0402] First, the first embodiment is described.

[0403]FIG. 1 shows a configuration of a hard disk apparatus 2 that is one embodiment of a recording apparatus and a reproduction apparatus of the present invention.

[0404] The hard disk apparatus 2 is connected to IEEE1394 bus 1 and, in addition, the IEEE1394 bus 1 is connected to a host system 3.

[0405] The IEEE1394 bus 1 is a high performance serial bus according to the IEEE standard as described in the IEEE1394-1995 for relaying transmissions of AV data or exchanges of commands.

[0406] A host system 3, which is provided with an I / F 16 that is an IEEE1394 interface, is an apparatus, for example an STB (set top box: satellite broadcast receiver) for moving data, for which copyright protection is necessary, in order to be recorded in a hard disk apparatus 2, to the IEEE1394 bus 1 and for receiving data, for which copyright protection is necessary, from the hard disk apparatus 2 via the IEEE1394 bus 1 and for r...

second embodiment

[0533] (Second Embodiment)

[0534] Next, the second embodiment is described.

[0535] In the present embodiment, the process of CCI is mainly described.

[0536]FIG. 1 shows a configuration of a hard disk apparatus 2 that is one embodiment of a recording apparatus and a reproduction apparatus of the present invention.

[0537] The configuration of the hard disk apparatus 2 of the present embodiment is the same as in the first embodiment.

[0538]FIG. 9 shows a format 41 of a magnetic disk medium 29 of a recording means 15. The left side on the paper corresponds to the inner periphery 45 of the disk of the magnetic disk medium 29 while the right side on the paper corresponds to the outer periphery 46 of the disk. The region of the inner periphery 45 side of the disk is system FAT 42 while the outer periphery 46 side of the disk is data 43.

[0539] The system FAT 42 is a system region that the user cannot access and is a region such as for file management information where the control means 14 u...

third embodiment

[0563] (Third Embodiment)

[0564] Next, the third embodiment is described.

[0565]FIG. 10 shows a configuration of a hard disk apparatus 47 that is one embodiment of a recording apparatus and a reproduction apparatus of the present invention.

[0566] The hard disk apparatus 47 of the present embodiment is provided with an I / F 48 in place of the I / F 4 of the first embodiment. In addition, a controller 51 of the present embodiment does not have the encryption means 11, the decryption means 12 and the device unique key 13.

[0567] The I / F 48 is an interface, which does not decrypt the encrypted AV data sent from the IEEE 1394 bus 1 and transfers it to the controller 51, and which transfers the encrypted AV data sent from the controller 51 to the IEEE 1394 bus 1 without change. Other parts are the same as of the I / F 4 of the first embodiment.

[0568] Next, the operation of the hard disk apparatus 47 of the present embodiment in the above configuration is described primarily in reference to th...

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Abstract

An encryptor is provided for encrypting AV data sent from an interface. A controller controls recording of the encrypted AV data by controlling a recorder for recording the encrypted AV data in a magnetic disk. The recorder is controlled by the controller so as to reproduce the data recorded on the disk. A decrypter decrypts the reproduced data that is sent to the interface.

Description

[0001] This Application is a Continuation of U.S. patent application Ser. No. 10 / 169,052, filed Nov. 4, 2002, which is a U.S. National Phase Application of PCT International Application PCT / JP00 / 09260, the Contents of which are Incorporated by Reference.TECHNICAL FIELD [0002] The present invention relates to a recording apparatus for recording data, a reproduction apparatus for reproducing data, a data processing apparatus for moving or copying data that is recorded in a recording medium into another apparatus, a recording and reproduction apparatus for recording and reproducing data that is moved in such a manner, a data transmission apparatus for transmitting a stream formed of a plurality of pieces of data and a recording apparatus as well as a recording and reproduction apparatus for reproducing, with a time shift, the contents that are broadcast via TV broadcasting, and corresponding methods or the like, so as to be viewed after being delayed a predetermined period of time. BAC...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/167G06F21/10G06F21/62G09C1/00G11B20/00G11B20/10G11B20/12H04N5/765H04N5/781H04N5/91H04N5/913H04N7/16H04N9/804H04N21/4147H04N21/426H04N21/433H04N21/436H04N21/4405H04N21/4623
CPCG11B20/00086G11B20/00188G11B20/0021G11B20/00246G11B20/00492G11B20/00666G11B20/0071G11B20/00746G11B20/00768G11B20/0084G11B20/10G11B20/12G11B2220/2516H04N5/765H04N5/781H04N5/85H04N5/913H04N7/163H04N7/1675H04N9/8042H04N21/4147H04N21/42661H04N21/4334H04N21/43622H04N21/4405H04N21/4623H04N2005/91307H04N2005/91321H04N2005/91328H04N2005/91364
Inventor YOSHIDA, SHUICHIOKADA, TAKANORIKUNO, YOSHIKIKOMENO, JYUN-ICHIKOUDO, TOSHIKAZUSHIMIZU, RYOSUKEKUBO, NORIAKI
Owner PANASONIC CORP
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