Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2011-01-25
2011-01-25
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000
Reexamination Certificate
active
07876139
ABSTRACT:
A delay locked loop (DLL) of a semiconductor device has a relatively small area and low current consumption while having a function of correcting a duty ratio. The semiconductor device includes a split unit configured to receive and split a reference clock to output a first clock corresponding to a first edge of the reference clock and a second clock corresponding to a second edge, a voltage generation unit configured to generate a first voltage corresponding to a duty ratio of the first clock and a second voltage corresponding to a duty ratio of the second clock, a voltage comparison unit configured to compare levels of the first and second voltages with each other, and a clock delay unit configured to receive one of the first and second clocks to delay the received clock of which delay amount is determined in response to an output signal of the voltage comparison unit.
REFERENCES:
patent: 5945857 (1999-08-01), Havens
patent: 6963225 (2005-11-01), Whetsel
patent: 7161397 (2007-01-01), Lee et al.
patent: 7180346 (2007-02-01), Lee
patent: 7282977 (2007-10-01), Lee
patent: 7282978 (2007-10-01), Lee
patent: 7365583 (2008-04-01), Shin
patent: 7567103 (2009-07-01), Park et al.
patent: 7573308 (2009-08-01), Kim
patent: 7612591 (2009-11-01), Kim
patent: 7612593 (2009-11-01), Kim et al.
patent: 7629829 (2009-12-01), Lee
patent: 7649390 (2010-01-01), Shin
patent: 7701273 (2010-04-01), Choi
patent: 7733141 (2010-06-01), Oh
patent: 2007/0001726 (2007-01-01), Lee
patent: 2007/0013423 (2007-01-01), Lee
patent: 2007/0069781 (2007-03-01), Kim et al.
patent: 2007/0069782 (2007-03-01), Shin
patent: 2007/0080732 (2007-04-01), Cho
patent: 2008/0191757 (2008-08-01), Choi
patent: 2009/0058481 (2009-03-01), Kim et al.
patent: 2009/0115471 (2009-05-01), Choi
patent: 2009/0115475 (2009-05-01), Oh
patent: 2009/0278580 (2009-11-01), Kim
patent: 2010/0073053 (2010-03-01), Shin
patent: 2010/0194458 (2010-08-01), Oh
patent: 2010/0195423 (2010-08-01), Oh
patent: 2010/0201414 (2010-08-01), Oh
patent: 2002-042469 (2002-02-01), None
patent: 10-2003-0002130 (2003-01-01), None
patent: 10-0701423 (2007-03-01), None
patent: 10-2007-0046341 (2007-05-01), None
patent: 2007-0104727 (2007-10-01), None
patent: 1020090045569 (2009-05-01), None
Blakely Sokoloff Taylor and Zafman
Donovan Lincoln
Houston Adam D
Hynix / Semiconductor Inc.
LandOfFree
Semiconductor device and operating method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device and operating method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device and operating method thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2636524