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.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Aug. 21, 2020
Moffett Technologies Co., Limited, Central, HK;
Zhibin Xiao, Los Altos, CA (US);
Enxu Yan, Los Altos, CA (US);
Wei Wang, Los Altos, CA (US);
Yong Lu, Los Altos, CA (US);
MOFFETT TECHNOLOGIES CO., LIMITED, Central, HK;
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for hierarchical weight-sparse convolution processing are described. An exemplary method comprises: obtaining an input tensor and a plurality of filters at a convolution layer of a neural network; segmenting the input tensor into a plurality of sub-tensors and assigning the plurality of sub-tensors to a plurality of processors; generating, for each of the plurality of filters, a hierarchical bit representation of a plurality of non-zero weights in the filter, wherein the hierarchical bit representation comprises a plurality of bits indicating whether a sub-filter has at least one non-zero weight, and a plurality of key-value pairs corresponding to the plurality of non-zero weights in the filter; identifying, based on the hierarchical bit representation, one or more of the plurality of non-zero weights and corresponding input values from the assigned sub-tensor to perform multiply-and-accumulate (MAC) operations.