Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By phase
Reexamination Certificate
2007-06-13
2010-11-23
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By phase
Reexamination Certificate
active
07839179
ABSTRACT:
Methods and apparatus are disclosed, such as those involving a digital phase detector that includes a phase detection circuit configured to detect which one of two clock signals leads the other. One such phase detector includes a balancer configured to prepare the phase detection circuit for a phase detection. The phase detection circuit of one or more embodiments includes a cross-coupled latch configured to receive the two clock signals and generate a first latch output and a second latch output in response to the two clock signals. The aforementioned balancer is configured to substantially equalize the voltage levels of the first and second latch outputs before the phase detection circuit detects a phase difference between the two clock signals. For example, the balancer might pre-charge the outputs of the phase detection circuit to substantially the same voltage level before phase detection.
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Almo Khareem E
Donovan Lincoln
Knobbe Martens Olson & Bear LLP
Micro)n Technology, Inc.
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