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Title:
DEVICE AND METHOD FOR PROVIDING INFORMATION AND PROGRAM STORAGE MEDIUM
Document Type and Number:
Japanese Patent JP2000347849
Kind Code:
A
Abstract:

To prevent stored data from being illegally read out and analyzed by receiving a prescribed program from an information processor, transmitting an enciphered program to the information processor and enciphering the received program.

A personal computer(PC) 1 converts data of musical sound received from Electrical Music Distribution(EMD) servers 4-1 to 4-3 to a prescribed compression system, enciphers and records these data through an enciphering system such as Data Encryption Standard(DES). The PC 1 stores enciphered and recorded contents through a Universal Serial Bus(USB) cable 7-1 (7-2) to a connected portable device 6-1 (6-2) together with data related to the contents and corresponding to the storage in the portable device 6-1 (6-2), the data of utilization conditions corresponding to the stored contents are updated.


Inventors:
Ishiguro, Ryuji
Kawakami, Tatsu
Tanabe, Mitsuru
Eomo, Yuichi
Kawahara, Hirokazu
Application Number:
JP2000000087987
Publication Date:
December 15, 2000
Filing Date:
March 28, 2000
Export Citation:
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Assignee:
SONY CORP
International Classes:
G06Q30/06; G06F9/06; G06F13/00; G06F15/00; G06F21/00; G06F21/10; G06F21/12; G06F21/14; G06F21/33; G06F21/44; G06Q50/00; G09C1/00; G10K15/02; H04L12/22; (IPC1-7): G06F9/06; G06F13/00; G06F15/00; G06F17/60; G09C1/00; G10K15/02; H04L12/22
Attorney, Agent or Firm:
稲本 義雄