Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2011-04-19
2011-04-19
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000
Reexamination Certificate
active
07928783
ABSTRACT:
A semiconductor integrated circuit includes a frequency determining unit configured to determine an operational speed of the semiconductor integrated circuit and to generate a frequency region signal; a duty cycle control unit configured to detect a duty cycle of a DLL clock and to generate a duty cycle control signal; a duty cycle correcting unit configured to generate a corrected clock by correcting a duty cycle of an input clock in response to the frequency region signal and in response to the duty cycle control signal; and a DLL (Delay Locked Loop) circuit configured to generate the DLL clock by controlling a phase of the corrected clock.
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Won-Joo Yun et al; “Coverage expandable current type code controlled DCC with TDC-based range selector”, IEICE Electronics Express, vol. 6, No. 5, 205-210.
Kim Ki Han
Lee Hyun Woo
Yun Won Joo
Donovan Lincoln
Houston Adam D
Hynix / Semiconductor Inc.
Ladas & Parry LLP
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