Recording medium and apparatus for protecting copyrighted digital data
AssigneeSony Corporation
InventorsKoichi Sugiyama, Etsurou Sakamoto
Life of this patent
Estimating the term…
Abstract
Copying, dubbing or reproducing copyrighted digital data can be inhibited or restricted to properly protect a copyright. AV data recorded on a pre-recorded tape is output from a reproducing unit of a first digital VCR with protective information indicating whether the copy of the AV data is inhibited or not. The protective information is input with the A/V data to a second digital VCR. Copy permission information of a blank tape loaded in the second digital VCR is discriminated and the second digital VCR records the AV data supplied from the first digital VCR based on the protective information and the copy permission information.
Claims18
An apparatus for controlling usage of digital content data, comprising:
- a storage unit configured to store the digital content data;
- a determination processing unit configured to determine whether the digital content data stored by the storage unit is eligible for reproduction based on reproduction duration information;
- and
- a control processing unit configured to control reproduction of the digital content data based on the determination by the determination processing unit.
A method for controlling usage of digital content, comprising:
- storing digital content data in a storage unit;
- determining, at a determination processing unit, whether the digital content data stored by the storing is eligible for reproduction based on reproduction duration information;
- and
- controlling, using a control processing unit, reproduction of the digital content data based on the determination by the determining.
A non-transitory computer readable medium claim having stored thereon a program that when executed by a computer causes the computer to implement a method for controlling usage of digital content, comprising:
- storing digital content data in a storage unit;
- determining, at a determination processing unit, whether the digital content data stored by the storing is eligible for reproduction based on reproduction duration information;
- and
- controlling, using a control processing unit, reproduction of the digital content data based on the determination by the determining.
Dependencies are inferred from the claim text.