US 11,797,829 B2
Product-sum operation device, neuromorphic device, and method for using product-sum operation device
Tatsuo Shibata, Tokyo (JP); and Tomoyuki Sasaki, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Appl. No. 16/759,080
Filed by TDK CORPORATION, Tokyo (JP)
PCT Filed Dec. 12, 2018, PCT No. PCT/JP2018/045725
§ 371(c)(1), (2) Date Apr. 24, 2020,
PCT Pub. No. WO2019/131141, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. 2017-254702 (JP), filed on Dec. 28, 2017.
Prior Publication US 2020/0327400 A1, Oct. 15, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. G06N 3/063 (2023.01); G06F 7/38 (2006.01); G06F 7/50 (2006.01); G06F 7/523 (2006.01); G06F 7/544 (2006.01)
CPC G06N 3/063 (2013.01) [G06F 7/383 (2013.01); G06F 7/50 (2013.01); G06F 7/523 (2013.01); G06F 7/5443 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A product-sum operation device comprising a product operator and a sum operator, wherein the product operator includes a plurality of product operation elements and at least one alternative element that, when any of the plurality of product operation elements has malfunctioned, is used instead of the malfunctioning product operation element,
the plurality of product operation elements and the alternative element are each a resistance change element,
the sum operator includes an output detector, and
the output detector is configured to detect a sum of outputs from a plurality of product operation elements connected to the same line when the alternative element is not used.