US 6,983,373 B2 | ||
Information processing apparatus, information processing system, information processing method, and storage medium therefor | ||
Yoji Furuya, Tokyo (Japan) | ||
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
Filed on Jul. 02, 2001, as Appl. No. 9/895,384. | ||
Claims priority of application No. 2000-202651 (JP), filed on Jul. 04, 2000. | ||
Prior Publication US 2002/0019813 A1, Feb. 14, 2002 | ||
Int. Cl. G06F 17/00 (2006.01) |
U.S. Cl. 713—193 | 48 Claims |
1. An information processing apparatus comprising:
encryption means, for encrypting a life counter for content data;
addition means, for adding said encrypted life counter to a content data file; and
transmission means, for externally transmitting, via a network, said content data file having said added life counter,
wherein, when the content data file is copied to a destination file, a value held by the life counter of the content data
file being copied is reduced by one half and the reduced value is copied to a life counter of the destination file.
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