Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-04-04
2006-04-04
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S543000, C365S227000
Reexamination Certificate
active
07023261
ABSTRACT:
A semiconductor memory device includes a voltage reduction circuit which reduces a power supply voltage and outputs an internal voltage, a nonvolatile memory connected to the internal voltage and a current consumption control circuit including a switch transistor and a resistor. In this case, the amount of electric current which the nonvolatile memory consumes and the amount of electric current which the resistor consumes are substantially the same. When the nonvolatile memory is in a non-operation state, the current consumption control circuit turns ON the switch transistor by a memory activation signal and consumes substantially the same amount of electric current as the amount of electric current which the nonvolatile memory consumes. When the nonvolatile memory is in an operation state, the current consumption control circuit turns OFF the switch transistor and stops electric current consumption by the resistor.
REFERENCES:
patent: 5202838 (1993-04-01), Inoue
patent: 5418353 (1995-05-01), Katayama et al.
patent: 5418358 (1995-05-01), Bruhnke et al.
patent: 5949279 (1999-09-01), Kwan
patent: 6343022 (2002-01-01), Naruse
patent: 6525362 (2003-02-01), Sadayuki
patent: 6768370 (2004-07-01), Takahashi et al.
patent: 6842053 (2005-01-01), Luo
patent: 04-032988 (1992-02-01), None
patent: 5-21738 (1993-01-01), None
patent: 10-285087 (1998-10-01), None
patent: 2001-101364 (2001-04-01), None
patent: P2002-150250 (2002-05-01), None
Mano Yoshitaka
Nakane George
Englund Terry L.
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
Wells Kenneth B.
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