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
OG exemplary drawing
 
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.