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.

Date of Patent:
Jul. 27, 2021

Filed:

Jun. 25, 2019
Applicant:

Western Digital Technologies, Inc., San Jose, CA (US);

Inventors:

Wen Ma, Milpitas, CA (US);

Pi-Feng Chiu, Milpitas, CA (US);

Minghai Qin, Milpitas, CA (US);

Won Ho Choi, San Jose, CA (US);

Martin Lueker-Boden, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/16 (2006.01); G11C 13/00 (2006.01); G06N 3/08 (2006.01); H03M 1/12 (2006.01); H03M 1/74 (2006.01);
U.S. Cl.
CPC ...
G06F 17/16 (2013.01); G06N 3/08 (2013.01); G11C 13/0002 (2013.01); H03M 1/12 (2013.01); H03M 1/74 (2013.01);
Abstract

An innovative low-bit-width device may include a first digital-to-analog converter (DAC), a second DAC, a plurality of non-volatile memory (NVM) weight arrays, one or more analog-to-digital converters (ADCs), and a neural circuit. The first DAC is configured to convert a digital input signal into an analog input signal. The second DAC is configured to convert a digital previous hidden state (PHS) signal into an analog PHS signal. NVM weight arrays are configured to compute vector matrix multiplication (VMM) arrays based on the analog input signal and the analog PHS signal. The NVM weight arrays are coupled to the first DAC and the second DAC. The one or more ADCs are coupled to the plurality of NVM weight arrays and are configured to convert the VMM arrays into digital VMM values. The neural circuit is configured to process the digital VMM values into a new hidden state.


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