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US 8,543,825 B2Granted
Method and apparatus for input of coded image data
AssigneeCanon Kabushiki Kaisha
InventorKazuomi Oishi
Life of this patent
Estimating the term…
Abstract
An image input device which includes a means for inputting image data, a memory for storing secret information and an operator for carrying out an operation by using the image data and the secret information.
Claims30
An image input apparatus comprising:
- an image data generating unit that generates image data;
- an interface unit that (a) transmits the image data to an external device and receives verification information from the external device,
- wherein the external device receives image data from the image input apparatus, converts the image data received from the image input apparatus into compressed image data, generates, using a secret key included in the external device and the compressed image data, the verification information, and transmits the verification information to the image input apparatus, and
- wherein the verification information is used to verify whether the image data is altered or not;
- and
- a memory that stores the image data and the verification information.
3 more elements
A method comprising:
- transmitting, to an external device, image data generated in an image input apparatus;
- receiving verification information from the external device,
- wherein the external device receives image data from the image input apparatus, converts the image data received from the image input apparatus into compressed image data, generates, using a secret key included in the external device and the compressed image data, the verification information, and transmits the verification information to the image input apparatus, and
- wherein the verification information is used to verify whether the image data is altered or not;
- and
- storing the image data and the verification information in a memory included in the input apparatus.
3 more elements
An image input apparatus comprising:
- an image data generating means for generating image data;
- an interface means for transmitting the image data to an external device and receiving verification information from the external device,
- wherein the external device receives image data from the image input apparatus, converts the image data received from the image input apparatus into compressed image data, generates, using a secret key included in the external device and the compressed image data, the verification information, and transmits the verification information to the image input apparatus, and
- wherein the verification information is used to verify whether the image data is altered or not;
- and
- a storing means for storing the image data and the verification information.
3 more elements
A method comprising:
- receiving, from an image input apparatus, image data generated in the image input apparatus;
- converting the image data received from the image input apparatus into compressed image data;
- generating, using a secret key included in an external device and the compressed image data, verification information which is used to verify whether the image data is altered or not, wherein the external device is capable of connecting to the image input apparatus;
- and
- transmitting the verification information to the image input apparatus,
- wherein the image input apparatus includes an interface unit that transmits the image data to external device and receives the verification information from the external device, and a memory that stores the image data and the verification information.
3 more elements
An external device which is capable of connecting to an image input apparatus, the external device comprising:
- a receiving unit that receives, from the image input apparatus, image data generated in the image input apparatus;
- a converting unit that converts the image data received from the image input apparatus into compressed image data;
- a generating unit that generates, using a secret key included in the external device and the compressed image data, verification information which is used to verify whether the image data is altered or not;
- and
- a transmitting unit that transmits the verification information to the image input apparatus,
- wherein the image input apparatus includes an interface unit that transmits the image data to the external device and receives the verification information from the external device, and a memory that stores the image data and the verification information.
3 more elements
Dependencies are inferred from the claim text.