Static information storage and retrieval – Floating gate – Particular connection
Reexamination Certificate
2006-12-12
2006-12-12
Hur, J. H. (Department: 2824)
Static information storage and retrieval
Floating gate
Particular connection
C365S189050, C365S225700, C365S096000
Reexamination Certificate
active
07149114
ABSTRACT:
A latching circuit is provided that includes a latch, a storage element, and a selection circuit coupled between the latch and the storage element. The latch can receive true and complementary voltage values from, for example, a data bus and, if called upon, forward the latched value to the non-volatile storage element via the selection circuit. Control signals sent to the selection circuit allow the latched data to be written to or read from the storage element. Once programmed, the voltage values will remain in the latching circuit even after power is removed. If the latched data is not sent to the non-volatile storage element, the latching circuit essentially functions as a volatile latch, and the data will be lost if power is removed. The switching circuit thereby operates as a dual-purpose volatile and non-volatile latching circuit that can be embodied as an array of latching circuits that temporarily and/or permanently store true and complementary data signals.
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International Search Report, PCT/US2005/008154, mailed Jul. 1, 2005.
Jenne Fredrick B.
Maheshwari Sanjeev K.
Taheri Babak A.
Cypress Semiconductor Corp.
Daffer Kevin L.
Daffer McDaniel LLP
Hur J. H.
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