Electrical computers: arithmetic processing and calculating – Electrical analog calculating computer – Particular function performed
Reexamination Certificate
2004-02-02
2008-12-09
Mai, Tan V (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical analog calculating computer
Particular function performed
Reexamination Certificate
active
07464131
ABSTRACT:
A logical calculation circuit capable of storing data, and performing logical calculations with high reliability and high speeds are provided. The residual polarized state s′ of a load ferroelectric capacitor Cs′ is actively changed so that the residual polarized state s′ of a load ferroelectric capacitor Cs′ is opposite to the residual polarized state s of a storage ferroelectric capacitor Cs. In the case a reference potential is made c=0 in the calculation operation, even if the second data to be calculated x=1 is given to the storage ferroelectric capacitor Cs in the residual polarized state s (the first data to be calculated)=0, the ferroelectric capacitor Cs does not reverse in polarity. Even with combinations other than s=0 and x=1, the ferroelectric capacitor Cs does not reverse in polarity. Difference is great between a potential VA=VA(0) occurring at a coupling node when x=1 is given to the ferroelectric capacitor Cs of s=0 and a potential VA=VA(1) occurring at the coupling node when x=1 is given to the ferroelectric capacitor Cs of s=1.
REFERENCES:
patent: 5198706 (1993-03-01), Papaliolius
patent: 6141237 (2000-10-01), Eliason et al.
patent: 2005/0190597 (2005-09-01), Kato
patent: 2006/0067102 (2006-03-01), Yamada et al.
patent: 2006/0083049 (2006-04-01), Chandler et al.
patent: 2008/0151600 (2008-06-01), Fujimori
patent: 05-242667 (1993-09-01), None
patent: 2674775 (1997-07-01), None
patent: 2001-126469 (2001-05-01), None
patent: 2003-140883 (2003-05-01), None
Fujimori Yoshikazu
Hanyu Takahiro
Kameyama Michitaka
Kimura Hiromitsu
Nakamura Takashi
Hogan & Hartson LLP
Mai Tan V
Rohm & Co., Ltd.
LandOfFree
Logical calculation circuit, logical calculation device, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logical calculation circuit, logical calculation device, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logical calculation circuit, logical calculation device, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4040947