Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Reexamination Certificate
2005-05-26
2009-12-29
Lam, Tuan (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
C327S203000
Reexamination Certificate
active
07639056
ABSTRACT:
In a method and system for data retention, a data input is latched by a first latch. A second latch coupled to the first latch receives the data input for retention while the first latch is inoperative in a standby power mode. The first latch receives power from a first power line that is switched off during the standby power mode. The second latch receives power from a second power line. A controller receives a clock input and a retention signal and provides a clock output to the first latch and the second latch. A change in the retention signal is indicative of a transition to the standby power mode. The controller continues to hold the clock output at a predefined voltage level and the second latch continues to receive power from the second power line in the standby power mode, thereby retaining the data input.
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Gururajarao Sumanth Katte
Ko Uming
Mair Hugh T.
Scott David B.
Brady III Wade J.
Lam Tuan
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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