Electronic document viewing system
First Claim
Patent Images
1. A viewing apparatus comprising:
- an acquiring unit operable to acquire an electronic document file containing a first layer defined to present a document image and a second layer defined to cover at least part of the first layer;
a control unit operable to set a display mode of the second layer depending on a pattern of viewing the electronic document file; and
a display unit operable to display the first and second layers, the second layer being displayed in the display mode set by the control unit and overlaid on the first layer.
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Abstract
The present invention aims to provide an electronic document viewing system meeting the convenience of users, while ensuring the security of electronic documents. A viewing apparatus has an acquiring unit for receiving a first layer and a second layer from a creating apparatus. The first layer contains a document laid out therein, and the second layer is defined to cover at least part of the first layer. The viewing apparatus also has a control unit for setting a display mode of the second layer, and a display unit for displaying the electronic document file in accordance with the display mode set by the control unit.
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Citations
20 Claims
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1. A viewing apparatus comprising:
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an acquiring unit operable to acquire an electronic document file containing a first layer defined to present a document image and a second layer defined to cover at least part of the first layer;
a control unit operable to set a display mode of the second layer depending on a pattern of viewing the electronic document file; and
a display unit operable to display the first and second layers, the second layer being displayed in the display mode set by the control unit and overlaid on the first layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic document file creating apparatus for creating an electronic document file configured to be displayed in a different mode depending on a pattern in which the electronic document file is viewed, comprising:
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a storage unit operable to store a first layer defined to present a document image;
a second layer creating unit operable to create a second layer defined to cover at least part of the first layer;
a control information creating unit operable to create viewing control information for changing a display mode of the second layer depending on a viewing pattern; and
a creating unit operable to create an electronic document file containing the first layer, the second layer, and the viewing control information. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An electronic document file viewing system for supplying an electronic document file created by an electronic document file creating apparatus to a viewing apparatus that allows a user to view the electronic document file,
the electronic document file creating apparatus comprising: -
a storage unit operable to store a first layer defined to present a document image;
a second layer creating unit operable to create a second layer defined to cover at least part of the first layer;
a control information creating unit operable to create viewing control information for changing a display mode of the second layer depending on a viewing pattern; and
a creating unit operable to create an electronic document file containing the first layer, the second layer, and the viewing control information, and the viewing apparatus comprising;
an acquiring unit operable to acquire the electronic document file;
a control unit operable to set a display mode of the second layer depending on a pattern in which the electronic document file is viewed, as specified in the control information; and
a display unit operable to display the first and second layers, the second layer being displayed in the display mode set by the control unit and overlaid on the first layer.
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17. A viewing method for use by a viewing apparatus, comprising:
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an acquiring step of acquiring an electronic document file containing a first layer defined to present a document image and a second layer defined to cover at least part of the first layer;
a control step of setting a display mode of the second layer depending on a pattern of viewing the electronic document file; and
a display step of displaying the first and second layers, the second layer being displayed in the display mode set in the control step and overlaid on the first layer.
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18. A computer program for use by a viewing apparatus, comprising code operable to cause the viewing apparatus to perform:
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an acquiring step of acquiring an electronic document file containing a first layer defined to present a document image and a second layer defined to cover at least part of the first layer;
a control step of setting a display mode of the second layer depending on a pattern of viewing the electronic document file; and
a display step of displaying the first and second layers, the second layer being displayed in the display mode set in the control step and overlaid on the first layer.
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19. An electronic document file creating method for creating an electronic document file configured to be displayed in a different mode depending on a pattern in which the electronic document file is viewed, the electronic document file creating apparatus storing a first layer defined to present a document image, the method comprising:
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a second layer creating step of creating a second layer defined to cover at least part of the first layer;
a control information creating step of creating viewing control information for changing a display mode of the second layer depending on a viewing pattern; and
a creating step of crating an electronic document file containing the first layer, the second layer, and the viewing control information.
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20. A computer program for use by an electronic document file creating apparatus that creates an electronic document file configured to be displayed in a different mode depending on a pattern in which the electronic document file is viewed, the electronic document file creating apparatus storing a first layer defined to present a document image, the computer program comprising code operable to cause the electronic document file creating apparatus to perform:
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a second layer creating step of creating a second layer defined to cover at least part of the first layer;
a control information creating step of creating viewing control information for changing a display mode of the second layer depending on a viewing pattern; and
a creating step of crating an electronic document file containing the first layer, the second layer, and the viewing control information.
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Specification