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US 6,636,967 B1Granted
Electronic-watermark control apparatus and method, information control apparatus and method, and storage medium capable of being read by a computer
AssigneeCanon Kabushiki Kaisha
InventorHiroki Koyano
Life of this patent
Estimating the term…
Abstract
An information control apparatus includes a superposition circuit for superposing a plurality of elements, each having electronic-watermark information, to provide a set of data, a determination circuit for determining, prior to superposition, a state of respective sets of electronic-watermark information after the superposition, and a notification circuit for notifying of the determined state.
Claims9
An information control apparatus comprising:
- superposition means for superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determination means for determining a region where electronic-watermark information is present within a data element;
- comparison means for comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between the compared regions;
- and
- notification means for outputting a notifying message based on the results of the comparison.
2 more elements
An information control method comprising the steps of:
- superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determining a region where electronic-watermark information is present within a data element;
- comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between compared regions;
- and
- outputting a notifying message based on the results of the comparison.
2 more elements
A computer readable memory storing a program, said program comprising the steps of:
- superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determining a region where electronic-watermark information is present within a data element;
- comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between compared regions;
- and
- outputting a notifying message based on the results of the comparison.
2 more elements
An information control apparatus comprising:
- superposition means for superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determination means for determining a region where electronic-watermark information is present within a data element;
- comparison means for comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between compared regions;
- and
- terminator means for terminating the process of superposing by said superposition means based on the result of the comparison.
2 more elements
An information control method comprising the steps of:
- superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determining a region where electronic-watermark information is present within a data element;
- comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between compared regions;
- and
- terminating the process of superposing in said superposing step based on the result of the comparison.
2 more elements
A computer readable memory storing a program, said program comprising the steps of:
- superposing a plurality of data elements to provide a set of data, each data element of the plurality of data elements being superposed including electronic-watermark information;
- determining a region where electronic-watermark information is present within a data element;
- comparing a region where electronic-watermark information is present within one of the plurality of data elements with a region where electronic-watermark information is present within another of the plurality of data elements and determining if there is an overlap between compared regions;
- and
- terminating the process of superposing in said superposing step based on the result of the comparison.
2 more elements
Dependencies are inferred from the claim text.