Receiving apparatus, transmitting apparatus, and communication system which utilize a watermark insertion technique
AssigneeNEC Corporation
InventorShiro Fujihara
Life of this patent
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Abstract
In a communication system, a transmitting device transmits an image datum to which a specified datum is inserted as an electronic watermark by watermark insertion technique. The image datum represents an image. The specified datum represents a specified process for a receiving apparatus for receiving the image datum. In the receiving apparatus, a processing arrangement is responsive to the image datum and processes the specified datum to execute the specified process. A producing arrangement is responsive to the image data and produce the image.
Claims8
A receiving apparatus for use in reception of an image datum to which a specified datum is inserted as a watermark by a watermark insertion technique, said image datum representing an image, said specified datum comprising a specified code representing a specified process and processing content corresponding to said specified process to be executed at said receiving apparatus, said receiving apparatus comprising:
- storage means for storing a predetermined code and processing code corresponding to said predetermined code;
- receiving means for receiving said image datum;
- producing means connected to said receiving means and responsive to said image datum for producing said image;
- and
- processing means connected to said receiving means and responsive to said image datum for comparing said specified code and said predetermined code and processing said processing content of said specified datum via said processing code to execute said specified process if said specified code is coincident with said predetermined code.
A communication system comprising:
- a transmitting apparatus for transmitting an image datum to which a specified datum is inserted as a watermark by a watermark insertion technique, said image datum representing an image, said specified datum comprising a specified code representing a specified process and processing content corresponding to said specified process to be executed;
- and
- a receiving apparatus for use in reception of said image datum and execution of said specified process at said receiving apparatus, said receiving apparatus comprising:
- storage means for storing a predetermined code and processing code corresponding to said predetermined code;
- receiving means for receiving said image datum;
- producing means connected to said receiving means and responsive to said image datum for producing said image;
- and
- processing means connected to said receiving means and responsive to said image datum for comparing said specified code and said predetermined code and processing said processing content of said specified datum via said processing code to execute said specified process if said specified code is coincident with said predetermined code.
A transmitting apparatus for use in transmission of an image datum towards a receiving apparatus, said image datum representing an image, said transmitting apparatus comprising:
- an insertion circuit for inserting a specified datum as a watermark into said image datum by a digital watermark insertion technique, said specified datum comprising a specified code representing a specified process and processing content corresponding to said specified process to be executed at said receiving apparatus, said processing content of said specified datum to be processed via processing code corresponding to the specified code stored at said receiving apparatus;
- and
- transmission executing means connected to said insertion circuit for executing transmission of said image datum.
Dependencies are inferred from the claim text.