Patent ID: 11922240
Assignee: CEREMORPHIC, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A dot product generator comprising:
an analog charge bus comprising a plurality of analog charge lines;
a plurality of unit elements, each unit element having an A digital input and a B digital input, each unit element comprising:
a plurality of AND-groups, each AND-group comprising a plurality of AND gates, one for each digital bit of A or B inputs, each AND gate of an AND-group having one input coupled to each of the A digital input bits and the other input coupled to a unique one of the B digital input bits, an output of each AND gate of each AND-group coupled to an analog charge line through a charge transfer capacitor;
a charge summing unit comprising a plurality of binary-weighted charge summing capacitors, each charge summing capacitor having a first terminal coupled to a unique analog charge line, the charge summing capacitors having a second terminal connected together and to an input of an analog to digital converter
and where the largest value of a charge summing capacitor is smaller than ⅛th of an accumulated capacitance of charge transfer capacitors associated with AND gates coupled to an associated analog charge line.