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USPTO Patent Grant: Spike Neural Network Circuit for Error Prevention

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Published March 24th, 2026
Detected March 25th, 2026
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Summary

The USPTO has granted a patent (US12585925B2) for a spike neural network circuit designed to prevent errors in charge calculation. The patent, assigned to Electronics and Telecommunications Research Institute, was filed on June 7, 2022, and is set to be granted on March 24, 2026.

What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12585925B2 to the Electronics and Telecommunications Research Institute for a novel synaptic circuit. This circuit incorporates a weight memory, a current-mode digital-to-analog converter (C-DAC), a parasitic capacitor correction circuit, and a pre-discharge circuit. The primary innovation is the prevention of charge calculation errors within spike neural networks by correcting parasitic capacitance generated by the C-DAC.

This patent grant is primarily an intellectual property notification and does not impose new regulatory obligations on businesses. However, companies involved in the development or manufacturing of AI hardware, particularly those utilizing neural network architectures or advanced semiconductor designs, may wish to review the patent's claims to understand potential intellectual property landscapes and avoid infringement. The patent is effective March 24, 2026.

Source document (simplified)

← USPTO Patent Grants

Sysnapse circuit for preventing errors in charge calculation and spike neural network circuit including the same

Grant US12585925B2 Kind: B2 Mar 24, 2026

Assignee

Electronics and Telecommunications Research Institute

Inventors

Kwang Il Oh, Tae Wook Kang, Hyuk Kim, Jae-Jin Lee

Abstract

Disclosed is a synaptic circuit including a weight memory that stores a weight value, a current-mode digital-to-analog converter (C-DAC) circuit that receives the weight value from the weight memory and supplies a current based on the weight value, a parasitic capacitor correction circuit that receives the weight value from the weight memory and to correct a value of parasitic capacitance generated by the C-DAC circuit based on the weight value, and a pre-discharge circuit that drains charges accumulated by the parasitic capacitance.

CPC Classifications

G06N 3/049 H03K 19/20

Filing Date

2022-06-07

Application No.

17834484

Claims

13

View original document →

Classification

Agency
USPTO
Published
March 24th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12585925B2

Who this affects

Applies to
Manufacturers Technology companies
Industry sector
3341 Computer & Electronics Manufacturing 5112 Software & Technology
Activity scope
Intellectual Property Management
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Artificial Intelligence Semiconductors

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