Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2006-05-23
2006-05-23
Elms, Richard (Department: 2824)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S208000, C365S201000, C365S189080
Reexamination Certificate
active
07050347
ABSTRACT:
In a normal operation, an output of a differential amplifier for amplifying a difference between first and second bit cells is output as readout data. In a test mode, when a first control signal is set to be “H”, the output of the differential amplifier is fixed to be “H” and thus an output of the first bit cell is read out through gates.
REFERENCES:
patent: 4970691 (1990-11-01), Atsumi et al.
patent: 6434068 (2002-08-01), Harada et al.
patent: 2005/0052926 (2005-03-01), Agata et al.
patent: 3-120759 (1991-05-01), None
Agata Masashi
Kawasaki Toshiaki
Nishihara Ryuji
Shirahama Masanori
Elms Richard
Le Toan
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
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