Input buffer with selectable threshold and hysteresis option

Details Input buffer with selectable threshold and hysteresis option Input buffer with selectable threshold and hysteresis option

2006-04-04

2006-04-04

Chang, Daniel D. (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

C326S040000, C327S205000

Reexamination Certificate

active

07023238

ABSTRACT:
An input buffer is configurable for use as a standard buffer with a single switching threshold, selectable to be one of at least two different switching thresholds, or used as a Schmitt trigger circuit with hysteresis, which uses at least two switching thresholds from among the at least two different switching thresholds. The integrated circuit may be a programmable logic device (PLD) or field programmable gate array (FPGA), but in other embodiments, the integrated circuit may be other types of devices such a microprocessors, ASICs, or memories.

REFERENCES:
patent: 4539489 (1985-09-01), Vaughn
patent: 4563594 (1986-01-01), Koyama
patent: 4563595 (1986-01-01), Bose
patent: 4703201 (1987-10-01), McGrail
patent: 4719367 (1988-01-01), Denda
patent: 4783607 (1988-11-01), Hsieh
patent: 4786825 (1988-11-01), O'Shaughnessy et al.
patent: 4859873 (1989-08-01), O'Shaughnessy et al.
patent: 4883975 (1989-11-01), Enomoto et al.
patent: 5144167 (1992-09-01), McClintock
patent: 5155386 (1992-10-01), Abdi
patent: 5327020 (1994-07-01), Ikeda
patent: 5359243 (1994-10-01), Norman
patent: RE34808 (1994-12-01), Hsieh
patent: 5438292 (1995-08-01), Tadokoro
patent: 5489866 (1996-02-01), Diba
patent: 5874844 (1999-02-01), Shin
patent: 5886556 (1999-03-01), Ganger et al.
patent: 5945859 (1999-08-01), Pang
patent: 6060925 (2000-05-01), Chou
patent: 6091264 (2000-07-01), Kirsch et al.
patent: 6163166 (2000-12-01), Bielby et al.
patent: 6335649 (2002-01-01), Maeda
patent: 6340907 (2002-01-01), Aoki
patent: 6377108 (2002-04-01), Kennedy et al.
patent: 6433602 (2002-08-01), Lall et al.
patent: 6597224 (2003-07-01), Lin et al.
patent: 6624678 (2003-09-01), Boutaud et al.
patent: 6906568 (2005-06-01), Lin et al.

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