Electronic paper and security system
First Claim
Patent Images
1. An electronic paper comprising:
- a main body that is provided with a display unit that displays an image;
a storage unit that stores the image data;
a controller that controls the display unit to display the image data stored in the storage unit;
a battery that supplies electric power to the display unit and the controller; and
a cartridge unit that is detachable from the main body and causes the image to be erased from the main body when detached from the main body.
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Accused Products
Abstract
An electronic paper includes: a main body that is provided with a display unit that displays an image; a storage unit that stores the image data; a controller that controls the display unit to display the image data stored in the storage unit; a battery that supplies electric power to the display unit and the controller; and an cartridge unit that is detachable from the main body and causes the image to be erased from the main body when detached from the main body.
18 Citations
12 Claims
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1. An electronic paper comprising:
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a main body that is provided with a display unit that displays an image;
a storage unit that stores the image data;
a controller that controls the display unit to display the image data stored in the storage unit;
a battery that supplies electric power to the display unit and the controller; and
a cartridge unit that is detachable from the main body and causes the image to be erased from the main body when detached from the main body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A security system comprising:
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a detection unit that detects a cartridge unit that is detached from a main body of an electronic paper; and
a gate control unit that monitors passage of a user of the electronic paper when the cartridge unit is detected by the detection unit. - View Dependent Claims (10, 11)
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12. A security system comprising:
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a reading unit that reads an identification information from a cartridge unit that is detached from a main body of an electronic paper, wherein the cartridge unit is provided with a recording unit that stores the identification information; and
a gate control unit that receives the identification information read by the reading unit and checks the identification information.
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Specification