Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-09-19
2006-09-19
Kim, Hong (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S002000, C711S170000, C711S202000, C710S038000, C710S040000, C710S316000
Reexamination Certificate
active
07111133
ABSTRACT:
In a control apparatus for operating with program data, it is possible to alter the operation of a control circuit by rewriting the data of the program memory built in an LSI, with ease and at a low cost independently of the operation of the control circuit.For that purpose, the control apparatus includes a ROM, a SRAM, a means for writing data in the SRAM, a selection means for selecting the output from the ROM or the SRAM in accordance with the addresses supplied to the ROM and the SRAM, and a control means for outputting the addresses to the ROM and the SRAM and operating with the output from the selection means as program data.
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Aoki Dan
Ishikawa Yoshinori
Soma Masato
Tada Yukinobu
Hitachi , Ltd.
Kim Hong
McDermott Will & Emery LLP
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