EP1063833A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
System for filtering data utilizing electronic watermark
Assignee: Hitachi Ltd
•
Filing: 1999-08-25
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Granted: —
•
Expires: 2019-08-25
Abstract
Abstract A filtering device (60) for connecting an internal network (10) with an external network (20) has a determination unit (62) for determining whether a data transfer is enabled or disabled. When data is transferred between the two networks (10, 20), the determination unit (62) determines whether or not the data transfer satisfies conditions defined by the contents of an electronic watermark (64) included in the data. The data transfer is enabled when it satisfies the conditions. <IMAGE>
Inventors
- 👤 Takashi Nagayama
- 👤 Tohru Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:47
CPC Classifications
H; H04; H04L; H04L63/00; H04L63/02; H04L63/0227; H04L63/0245; G; G06; G06T; G06T1/00; G06T1/0021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
57 words
A filtering device (60) for connecting an internal
network (10) with an external network (20), comprising: means (62) operable when data is transferred
between the networks for determining whether the data
transfer is enabled or disabled by examining whether the data
transfer satisfies conditions defined by the contents of an
electronic watermark (64) included in the data.
Claim 2
Dependent Claim
45 words
A filtering device according to claim 1, wherein
said means (62) for determining uses an electronic watermark
(64) to determine whether a transfer is enabled or disabled
for data which has been filtered on the basis of a source
and a destination of the data.
Claim 3
Dependent Claim
65 words
A connection device (60) for use with an
information processing device for transferring transmission
data from an information processing device (30) to another
information processing device (50), comprising: means (61) for extracting electronic watermark
information (64) included in said data; and means (62) for determining whether a transfer of
said data to the other information processing device is
enabled or disabled by examining extracted information.
Claim 4
Dependent Claim
53 words
A connection device for use with an information
processing device according to claim 3, wherein: said means for determining whether a transfer of
data is enabled or disabled includes a table (63) having
fields for storing a data source (201), a destination (202),
and information (203) for comparison with extracted
electronic watermark information.
Claim 5
Dependent Claim
36 words
A connection device for use with an information
processing device according to claim 4, wherein said
connection device permits particular users to correct the
information for comparison with extracted electronic
watermark information, stored in said table.
Claim 6
Dependent Claim
96 words
A computer readable storage medium comprising: a function of extracting electronic watermark
information (64) from data transmitted from an information
processing device (30); a function of determining whether or not a transfer
of said data to another information processing device (50)
is enabled or disabled by examining extracted information;
and a function of transferring said data to the other
information processing device when the result of the
determination indicates that the transfer is enabled, or
blocking said data to the other information processing device
when the result of the determination indicates that the
transfer is disabled.
Claim 7
Independent Claim
89 words
A method of processing a transfer of data having
an electronic watermark (64), requested by an information
processing device (30), said method comprising the steps of: executing a data transfer to an information
processing device (50) existing on a different network (20)
from a network (10) on which said information processing
device (30) exists; and when certain data has not been transferred on the
basis of electronic watermark information during said
executed data transfer, displaying in said information
processing device that the transfer of the certain data has
failed.
Claim 8
Independent Claim
102 words
A method of processing data having an electronic
watermark (64) transferred to an information processing
device (50), wherein a transfer of said data is executed from
an information processing device (30) existing on a network
different (10) from a network (20) on which said information
processing device exists, said method comprising the steps
of: determining whether or not certain data has not
been transferred on the basis of electronic watermark
information during the executed data transfer; and displaying in said information processing device
that the transfer of the certain data has failed when
determining that the certain data has not been transferred.
Claim 9
Independent Claim
111 words
A method of processing a transfer of data requested
by an information processing device (30), said method
comprising the steps of: executing a transfer of the data to an information
processing device (50) existing on a network (20) different
from a network (10) on which said information processing
device exists, said transferred data including particular
information indicative of a portion of said data; determining whether or not certain data has not
been transferred on the basis of said particular information
during the executed data transfer; and displaying in said information processing device
that the transfer of the certain data has failed when
determining that the certain data has not been transferred.
Claim 10
Independent Claim
110 words
A method of processing data transferred to an
information processing device (50), wherein a transfer of
said data is executed from an information processing device
(30) existing on a network (10) different from a network (20)
on which said information processing device exists, said
transferred data including particular information
indicative of a portion of said data, said method comprising
the steps of: determining whether or not certain data has not
been transferred on the basis of said particular information
during the executed data transfer; and displaying in said information processing device
that the transfer of the certain data has failed when
determining that the certain data has not been transferred.
Claim 11
Dependent Claim
94 words
An information processing device (30) for
processing a request for a transfer of data having an
electronic watermark (64), comprising: means (30A) for executing a data transfer to an
information processing device (50) existing on a different
network (20) from a network (10) on which said information
processing device exists; and display means (30B) responsive to a determination
indicating that certain data has not been transferred on the
basis of electronic watermark information during the
executed data transfer, for displaying in said information
processing device that the transfer of the certain data has
failed.
Claim 12
Dependent Claim
102 words
An information processing device (30) for
processing a request for a transfer of data, comprising: means (30A) for executing a data transfer to an
information processing device (50) existing on a different
network (20) from a network (10) on which said information
processing device (30) exists, said transferred data
including particular information indicative of a portion of
said data; and means (30B) responsive to a determination
indicating that certain data has not been transferred on the
basis of said particular information during the executed data
transfer, for displaying in said information processing
device that the transfer of the certain data has failed.
Claim 13
Dependent Claim
95 words
An information processing device (50) for
receiving data having an electronic watermark (64)
transferred thereto, said data being transferred from an
information processing device (30) existing on a different
network (10) from a network (20) on which said information
processing device exists, said information processing device
comprising: means (50A) for inputting information indicating
that certain data has not been transferred in said
transferred data; and means (50B) for displaying in said information
processing device that the transfer of the certain data has
failed when the certain data has not been transferred in said
transferred data.
References Cited (Backward Citations)
No citation records indexed.
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