Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Pulse shaping
Reexamination Certificate
2009-05-18
2010-12-14
Cho, James (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Pulse shaping
C326S027000
Reexamination Certificate
active
07852110
ABSTRACT:
An output buffer provided according to an aspect of the present invention is designed to generate an output signal with a slew rate that is substantially independent of the threshold voltage of transistors contained within. An output buffer provided according to another aspect of the present invention provides output signals with different slew rates depending on the magnitude of the load capacitance at the output node of the output buffer.
REFERENCES:
patent: 4906867 (1990-03-01), Petty
patent: 7245165 (2007-07-01), De Langen
patent: 7471111 (2008-12-01), Seth et al.
patent: 2009/0066381 (2009-03-01), Anderson et al.
“Design Guide for a Low Speed Buffer for the Universal Serial Bus”, Intel Corporation, Dec. 1996, pp. 1-35, Revision 1.1.
Ahmad B. Dowlatabadi, “A Robust, Load-Insensitive Pad Driver”, IEEE Journal of Solid State Circuits, pp. 660-665, Apr. 4, 2000, vol. 35.
E Garcia, P. Coll, and D. Auvergne, “Design of a Slew Rate Controlled Output Buffer”, ASIC Conference Year1998, pp. 147-150.
Soon-Kyun Shin, Seok-Min Jung, Jin-Ho Seo, Member, IEEE, Myeong-Lyong Ko, and Jae-Whui Kim, “A Slew-Rate Controlled Output Driver Using PLL as Compensation Circuit”, IEEE Journal of Solid State Circuits, Jul. 2003, pp. 1227-1233, vol. 38.
Gajendra P. Singh and Raoul B. Salem, “High-Voltage-Tolerant I/O Buffers with Low-Voltage CMOS Process”, IEEE Journal of Solid State Circuits, Nov. 1999, pp. 1512-1525, vol. 34.
Anne-Johan Annema et.al, “5.5V Tolerant I/O in a 2.5V 0.25um CMOS Technology”, IEEE Custom Integrated Circuits Conference, Year 2000, pp. 417-420.
Héctor Sánchez et.al, “A Versatile 3.3/2.5/1.8-V CMOS I/O Driver Built in a 0.2-μm, 3.5-nm Tox, 1.8-V CMOS Technology”, IEEE Solid State Circuits, Nov. 1999, pp. 1501-1511, vol. 34.
Seth Sumantra
Thomas Sneha Teresa
Brady III Wade James
Cho James
Neerings Ronald O.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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