Contents data utilization system and method, and mobile communication terminal used for the same
First Claim
1. A contents data utilization system for downloading contents data via a communication network to store the contents data into an external memory of a mobile communication terminal, comprising:
- a card, which is removably inserted into said mobile communication terminal, for storing an identifier intrinsic to the user of said terminal;
at said mobile communication terminal, means for generating a cipher key using the identifier stored in said card in response to a download command; and
means for encoding said contents data with said cipher key and storing the encoded data into said external memory.
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Accused Products
Abstract
The object of the present invention is to provide a contents data utilization system in which the contents data is shared between a plurality of mobile communication terminals while the copyright is protected. When the contents data downloaded via a communication network is stored into an external memory of a mobile communication terminal, an SIM data processing unit generates a cipher key, using an IMSI that is an identifier stored in an SIM card inserted into the terminal 1. Using the cipher key, a contents data processing unit encodes the downloaded contents data, and stores it into an external memory. When the contents data is reproduced, the SIM data processing unit generates a cipher key, using the identifier stored in the SIM card, and decodes and reproduces the contents data stored in the external memory. Thereby, the contents data can be shared between a plurality of mobile communication terminals owned by the user having the SIM card.
43 Citations
17 Claims
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1. A contents data utilization system for downloading contents data via a communication network to store the contents data into an external memory of a mobile communication terminal, comprising:
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a card, which is removably inserted into said mobile communication terminal, for storing an identifier intrinsic to the user of said terminal;
at said mobile communication terminal, means for generating a cipher key using the identifier stored in said card in response to a download command; and
means for encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (2, 5)
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3. A contents data utilization system for downloading contents data via a communication network to store the contents data into an external memory of a mobile communication terminal, wherein said mobile communication terminal comprises;
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means for generating a cipher key based on biological information capable of identifying the user of said terminal in response to a download command; and
means for encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (4)
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6. A contents data utilization method of downloading contents data via a communication network to store the contents data into an external memory of a mobile communication terminal, comprising:
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at said mobile communication terminal, a step of generating a cipher key using an identifier intrinsic to the user stored in a removable card in response to a download command; and
a step of encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (7, 10)
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8. A contents data utilization method of downloading contents data via a communication network to store the contents data into an external memory of a mobile communication terminal, comprising:
- at said mobile communication terminal,
a step of generating a cipher key based on biological information capable of identifying the user of said terminal in response to a download command; and
a step of encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (9)
- at said mobile communication terminal,
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11. A mobile communication terminal which downloads contents data via a communication network to store the contents data into an external memory thereof, comprising:
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means for generating a cipher key using an identifier intrinsic to the user stored in a removable card in response to a download command; and
means for encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (12, 15)
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13. A mobile communication terminal which downloads contents data via a communication network to store the contents data into an external memory thereof, comprising:
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means for generating a cipher key based on biological information capable of identifying the user of said terminal in response to a download command; and
means for encoding said contents data with said cipher key and storing the encoded data into said external memory. - View Dependent Claims (14)
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16. A program for causing a computer to perform an operation of a mobile communication terminal which downloads contents data via a communication network to store the contents data into an external memory thereof, said program comprising:
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a process of generating a cipher key using an identifier intrinsic to the user stored in a removable card in response to a download command; and
a process of encoding said contents data with said cipher key and storing the encoded data into said external memory.
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17. A program for causing a computer to perform an operation of a mobile communication terminal which downloads contents data via a communication network to store the contents data into an external memory thereof, said program comprising:
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a process of generating a cipher key based on biological information capable of identifying the user of said terminal in response to a download command; and
a process of encoding said contents data with said cipher key and storing the encoded data into said external memory.
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Specification