Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2007-12-14
2009-02-10
Pham, Ly D (Department: 2827)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S189070, C365S189090, C365S233100, C327S037000, C327S065000, C327S124000
Reexamination Certificate
active
07489575
ABSTRACT:
Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first configuration to a second configuration, where the second configuration changes the polarity of the integrator circuit from the first configuration. The output signals of the integrator circuit are periodically compared, and based on the comparison, output signals having a voltage representative of a value are generated. The values of the output signals are then averaged over time to determine the data state.
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Dorsey & Whitney LLP
Micro)n Technology, Inc.
Pham Ly D
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