Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2001-07-10
2003-09-09
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S263000, C327S264000, C327S112000, C326S024000
Reexamination Certificate
active
06617903
ABSTRACT:
The present application claims priority under 35 U.S.C. §119 to Japanese Application No. 2000-208003 filed on Jul. 10, 2000, which is hereby incorporated by reference in its entirely for all purposes.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an integrated circuit. In particular, the invention relates to an inverter circuit.
2. Description of the Related Art
An inverter is sometimes used as a delay circuit in an integrated circuit. A conventional inverter includes one N channel MOSFET (NMOS) and a P channel MOSFET (PMOS), and an inputted signal is inverted by the inverter. A delay of signal is caused during this inverting operation.
However, the delay circuit, which is composed by conventional inverters, has to have a plurality of conventional inverters according to a delay time and a logic level of an outputted signal. Therefore, an area of the delay circuit becomes wide. It is difficult to reduce the area of the delay circuit by using conventional inverters.
SUMMARY OF THE INVENTION
An inverter circuit includes a first transistor connected between an input terminal and a gate of a second transistor, a second transistor connected between power supply voltage and an output terminal, a third transistor connected between an input terminal and a gate of a fourth transistor and a fourth transistor connected between a ground and the output terminal.
REFERENCES:
patent: 5672983 (1997-09-01), Yamamoto et al.
patent: 5717343 (1998-02-01), Kwong
Callahan Timothy P.
Luu An T.
Oki Electric Industry Co. Ltd.
Volentine & Francos, PLLC
LandOfFree
Inverter circuit having an improved slew rate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inverter circuit having an improved slew rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inverter circuit having an improved slew rate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3030220