The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2023

Filed:

Apr. 20, 2022
Applicant:

Kepler Computing Inc., San Francisco, CA (US);

Inventors:

Amrita Mathuriya, Portland, OR (US);

Rafael Rios, Austin, TX (US);

Ikenna Odinaka, Durham, NC (US);

Darshak Doshi, Sunnyvale, CA (US);

Rajeev Kumar Dokania, Beaverton, OR (US);

Sasikanth Manipatruni, Portland, OR (US);

Assignee:

KEPLER COMPUTING INC., San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/23 (2006.01);
U.S. Cl.
CPC ...
H03K 19/23 (2013.01);
Abstract

A class of complex logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates. At least one input to an individual multi-input majority gate is a fixed input. Other inputs are driven to non-linear input capacitors on their respective first terminals. The second terminals of the non-linear input capacitors are coupled a summing node, which provides a majority function of the inputs. The summing node is coupled to a CMOS logic. Leakage through the capacitors is configured such that capacitors of a majority gate have substantially equal leakage, and this leakage has a I-V behavior which is symmetric. As such, reset device(s) on the summing node are not used. The non-linear charge response from the non-linear input capacitors results in output voltages close to or at rail-to-rail voltage levels, which reduces the high leakage problem faced from majority gates that use linear input capacitors.


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