Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2007-04-17
2007-04-17
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S299000
Reexamination Certificate
active
10878142
ABSTRACT:
The disclosure is directed to an internal pulse generator outputting a signal with a constant pulse width nevertheless of a frequency of an input signal, including a first PMOS transistor, a PMOS second transistor and an NMOS transistor which are connected between a power supply voltage and a ground voltage in series, a latch and an inverter which are connected between an output terminal and a first node as a drain of the NMOS transistor, and a Y-time delay circuit connected between the output terminal and a second node that is a common gate of the PMOS and NMOS transistors.
REFERENCES:
patent: 4767947 (1988-08-01), Shah
patent: 5841306 (1998-11-01), Lim
patent: 6198327 (2001-03-01), Takahashi
patent: 6346823 (2002-02-01), Kim
patent: 6680637 (2004-01-01), Seo
Hynix / Semiconductor Inc.
Ladas & Parry LLP
Nguyen Hai L.
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