Appeal No. 95-3919
Application No. 07/907,934
135, 138 through 140, 143, 144, 147, 149, 169, 171, 172, 175,
177, 178, 180, 181, 201, 204 through 207, 210, 211 and 214,
and reverse the obviousness rejection of claims 111 through
131, 133, 134, 136, 137, 141, 142, 145, 146, 148, 150 through
168, 170, 173, 174, 176, 179, 182 through 200, 202, 203, 208,
209, 212, 213 and 215 through 218.
Katznelson discloses a system (Figure 1) that includes an
authorization and key distribution terminal 10 for controlling
and accounting for retrieval of data by a customer data
retrieval terminal 11 from a CD-ROM memory located at the
customer data retrieval terminal 11. The CD-ROM contains
encrypted data files, and before the customer data retrieval
terminal 11 can retrieve data therefrom, the authorization and
key distribution terminal 10 must first grant authorization to
the terminal 11 to retrieve data from an encrypted file. To
gain such authorization, a customer 11 files a file use
request signal 12 that identifies the desired file, and the ID
number of the requesting customer terminal. The request
signal is processed by the terminal 10 to determine whether
the customer terminal 11 is authorized to retrieve data from
the file identified in the file use request signal 12. Such a
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