Digital data storage system, recording devices therefor, and digital data storage method
First Claim
1. A digital data storage system comprising a first recording device and a second recording device, wherein said first recording device includes:
- a first hard disk recording unit for storing digital data; and
a first cooperation unit for working with said second recording device; and
wherein said second recording device includes;
a second hard disk recording unit for storing data stored on said first hard disk recording unit; and
a second cooperation unit for working with said first recording device.
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Accused Products
Abstract
An object of the present invention is to provide a digital data storage technique that allows copyrighted content to be copied from one device to another device without encrypting it in a manner conforming to copyright laws and various specifications. The secondary recording device associates each primary recording device with a different partition and accepts a hard disk processing request for a partition only from the primary recording device associated with it. The secondary recording device deletes a backup copy of copying-inhibited data after restoring it on the primary recording device. The primary recording device prohibits copying-inhibited data from being restored after moving it to a DVD. The primary recording device and the secondary recording device exchange program components to work with each other.
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Citations
20 Claims
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1. A digital data storage system comprising a first recording device and a second recording device,
wherein said first recording device includes: -
a first hard disk recording unit for storing digital data; and
a first cooperation unit for working with said second recording device; and
wherein said second recording device includes;
a second hard disk recording unit for storing data stored on said first hard disk recording unit; and
a second cooperation unit for working with said first recording device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A first recording device comprising:
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a first hard disk recording unit for storing digital data;
a first cooperation unit for working with a second recording device; and
a DVD drive;
wherein when said first recording device has moved copying-inhibited data stored on said first hard disk recording unit to said DVD drive, said first recording device does not permit said copying-inhibited data to be restored on said first hard disk recording unit from a backup copy of said copying-inhibited data stored on said second recording device. - View Dependent Claims (9, 10, 11)
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12. A second recording device comprising:
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a second hard disk recording unit for storing data stored on a first recording unit; and
a second cooperation unit for working with said first recording unit;
wherein said second hard disk recording unit accepts a hard disk processing request only from said first recording device. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method for storing digital data, performed by a first recording device and a second recording device in cooperation, said method comprising the steps, performed by said second recording device, of:
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storing a device ID of said first recording device and information indicating a storage area of said second recording device in association with each other;
upon receiving a processing request from said first recording device, determining whether said processing request is for said storage area associated with said device ID of said first recording device; and
if said processing request is not for said storage area associated with said device ID of said first recording device, rejecting said processing request.
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19. A method for storing digital data, performed by a first recording device and a second recording device in cooperation, said method comprising the steps of:
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storing a backup copy of digital data stored on said first recording device onto said second recording device;
allowing said second recording device to reject any request other than that received from said first recording device;
allowing said second recording device to reject any request other than a restore request received from said first recording device;
in response to said restore request from said first recording device, allowing said second recording device to restore said digital data on said first recording device from said backup copy; and
allowing said second recording device to delete said backup copy. - View Dependent Claims (20)
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Specification