Appeal No. 2003-2149 Page 3
Application No. 09/498,379
The prior art references of record relied upon by the examiner in rejecting the
appealed claims are:
Obata et al. (Obata) 6,072,876 June 6, 2000
Mott et al. (Mott) 6,170,060 Jan. 2, 2001
Claims 57 to 62 stand rejected under 35 U.S.C. § 103 as being unpatentable
over Obata in view of Mott. The full basis for this rejection as set forth in the final
rejection (Paper No. 6, mailed November 15, 2002) is as follows:
As to claim 57, Obata teaches a method for secure distribution and access
to digital data, comprising (column 1 lines 8-25):
a) Providing an encryption key set having an encryption key and a
decryption key that can be divided into multiple parts, each parts of which
is associated with a component of a secure distribution system (column 2
lines 46-65 and column 4 lines 45-60 and column 14 lines 11-38);
b) Encrypting the digital data with the encryption key to produce
encryption digital data (column 4 lines 45-60 and column 14 lines 11-38);
c) Supplying the encrypted digital data along with a first part of the
decryption key that is associated with digital data (column 4 lines 45-60
and column 14 lines 11-38);
d) Supplying a second part of the decryption key (column 4 lines 45-60
and column 14 lines 11-38);
e) Combining the parts of the decryption keys and using the combined
decryption key to decrypt the encrypted digital data (column 13 lines 11-21
and Fig. 2).
Obata does not specifically teach applying the encryption key and
decryption key to a playback device. However, Mott teaches apply crypto
technology to a playback device (Fig. 2). It would have been obvious to one of
ordinary skill in the art at the time of the invention to allow the crypto method of
Obata to be applied to a playback device so that the data can be securely
transmitted from/to the playback device.
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