US 12,254,283 B2
Arithmetic devices for neural network
Choung Ki Song, Yongin-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Jan. 7, 2021, as Appl. No. 17/144,004.
Application 17/144,004 is a continuation in part of application No. 16/919,786, filed on Jul. 2, 2020, granted, now 11,915,125.
Claims priority of provisional application 62/959,593, filed on Jan. 10, 2020.
Claims priority of provisional application 62/959,574, filed on Jan. 10, 2020.
Claims priority of provisional application 62/958,609, filed on Jan. 8, 2020.
Claims priority of provisional application 62/958,614, filed on Jan. 8, 2020.
Claims priority of application No. 10-2019-0138114 (KR), filed on Oct. 31, 2019.
Prior Publication US 2021/0133546 A1, May 6, 2021
Int. Cl. G06F 7/544 (2006.01); G06N 3/063 (2023.01); G11C 8/10 (2006.01)
CPC G06F 7/5443 (2013.01) [G06N 3/063 (2013.01); G11C 8/10 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An arithmetic device comprising:
an activation function (AF) control circuit configured to generate a column address, a data selection signal, and an internal control signal based on an arithmetic result signal and an activation control signal during an activation operation;
a data storage circuit configured to output activation data from a memory cell array that is selected by the column address and a row address;
an output distribution signal generation circuit configured to generate an output distribution signal from the activation data based on the data selection signal and the internal control signal, and
an interpolation circuit configured to perform an interpolation operation based on the arithmetic result signal and the activation data when an activation function is applied to a multiplying-and-accumulating (MAC) arithmetic operation.