Title:
データ処理装置
Document Type and Number:
Japanese Patent JP4617581
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a data processing device capable of holding secrecy of commands and data among programs when executing a plurality of programs. SOLUTION: A CPU 52 executes a plurality of application programs while accessing to a memory 53. A judging circuit 60 outputs a judgement result signal S60 determining that a switch circuit 61 is set to either of a connection condition and a non-connection condition to the switch circuit 61 based on signals S52a, S52b, and S52c. The switch circuit 61 becomes connection or non-connection condition based on the signal S60.
Inventors:
Kubono Fumio
Masahiro Sueyoshi
Masahiro Sueyoshi
Application Number:
JP2001042397A
Publication Date:
January 26, 2011
Filing Date:
February 19, 2001
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06F12/14; G06F21/10; G06F21/60; G06F21/62; G06K17/00
Domestic Patent References:
| JP57015499U | ||||
| JP1277993A | ||||
| JP6052054A | ||||
| JP10078919A | ||||
| JP2000172490A | ||||
| JP9091236A |
Foreign References:
| WO1997014999A1 |
Attorney, Agent or Firm:
Takahisa Sato