Clock generator for semiconductor memory apparatus

Details Clock generator for semiconductor memory apparatus Clock generator for semiconductor memory apparatus

2008-08-05

2009-11-17

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000, C327S153000, C327S293000, C327S295000

Reexamination Certificate

active

07619454

ABSTRACT:
The clock generator for semiconductor memory apparatus which includes: a first divider configured to divide a frequency of a first internal clock generated by using an external clock; a first delay unit configured to delay an output of the first divider by first delay time; a second divider configured to divide a frequency of an output of the first delay unit; a second delay unit configured to delay the output of the second divider by second delay time; a phase comparator configured to compare a phase of the output of the first divider with a phase of the output of the second delay unit and output a result of the comparison; and a delay time setting unit configured to set the first delay time on the basis of the output of the phase comparator.

REFERENCES:
patent: 6269051 (2001-07-01), Funaba et al.
patent: 6384652 (2002-05-01), Shu
patent: 6433597 (2002-08-01), Jung
patent: 6492852 (2002-12-01), Fiscus
patent: 6593786 (2003-07-01), Jung
patent: 6853225 (2005-02-01), Lee
patent: 6859081 (2005-02-01), Hong et al.
patent: 6934215 (2005-08-01), Chung et al.
patent: 6963235 (2005-11-01), Lee
patent: 7227809 (2007-06-01), Kwak
patent: RE40205 (2008-04-01), Funaba et al.
patent: 7436230 (2008-10-01), Kim
patent: 2004/0066873 (2004-04-01), Cho et al.
patent: 2005/0242854 (2005-11-01), Kang et al.
patent: 2001-005554 (2001-01-01), None
patent: 2001-237680 (2001-08-01), None
patent: 1020040021478 (2004-03-01), None
patent: 1020040046323 (2004-06-01), None

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