Semiconductor device for detecting a phase of a clock

Details Semiconductor device for detecting a phase of a clock Semiconductor device for detecting a phase of a clock

2008-12-03

2010-11-16

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By phase

C327S007000, C327S144000, C327S145000, C327S162000, C327S163000, C365S189070, C365S233100, C365S233110, C365S233180, C365S233190

Reexamination Certificate

active

07834664

ABSTRACT:
A semiconductor, which includes a first phase detecting unit configured to detect a phase of a second clock on the basis of a phase of a first clock, and generate a first detection signal corresponding to a result of the detection, a second phase detecting unit configured to detect a phase of a delayed clock, which is generated by delaying the second clock by a predetermined time, on the basis of the phase of the first clock, and generate a second detection signal corresponding to a result of the detection, and a logic level determining unit configured to determine a logic level of a feedback output signal according to the first detection signal, the second detection signal and the feedback output signal.

REFERENCES:
patent: 6985401 (2006-01-01), Jang et al.
patent: 7123524 (2006-10-01), Han
patent: 7375565 (2008-05-01), Kwak
patent: 7542358 (2009-06-01), Jang
patent: 1019980082414 (1998-12-01), None
patent: 1020000061197 (2000-10-01), None
patent: 1020010064117 (2001-07-01), None
patent: 1020050089474 (2005-09-01), None
Notice of Preliminary Rejection issued from Korean Intellectual Property Office on Nov. 11, 2009.
Notice of Allowance issued from Korean Intellectual Property Office on Feb. 5, 2010.

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