Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Phase shift by less than period of input
Reexamination Certificate
2011-08-23
2011-08-23
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Phase shift by less than period of input
C327S003000, C327S033000, C327S254000, C327S255000, C365S189070, C365S233100
Reexamination Certificate
active
08004336
ABSTRACT:
A semiconductor memory device includes an edge detector configured to receive two pairs of complementary clocks to detect edges of the clocks, a comparator configured to compare output signals of the edge detector to detect whether clocks of the same pair have a phase difference of 180 degrees and detect whether clocks of different pairs have a phase difference of 90 degrees, a control signal generator configured to generate a control signal for controlling phases of the clocks according to an output signal of the comparator, and a phase corrector configured to correct phases of the clocks in response to the control signal.
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Kwon Dae-Han
Song Taek-Sang
Yoon Dae-Kun
Blakely & Sokoloff, Taylor & Zafman
Donovan Lincoln
Hynix / Semiconductor Inc.
Poos John W
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