Meanwhile, over at Weetbix:
US10650308 discussed STDP and ReRAM.
https://patents.justia.com/patent/10650308
Electronic neuromorphic system, synaptic circuit with resistive switching memory and method of performing spike-timing dependent plasticity
Patent number: 10650308
Abstract: A synaptic circuit performing spike-timing dependent plasticity STDP interposed between a pre-synaptic neuron and a post-synapse neuron includes a memristor having a variable resistance value configured to receive a first signal from the pre-synaptic neuron. The circuit has an intermediate unit connected in series with the memristor for receiving a second signal from the pre-synaptic neuron and provides an output signal to the post-synaptic neuron. The intermediate unit receives a retroaction signal generated from the post-synaptic neuron and the memristor modifies the resistance value based on a delay between two at least partially overlapped input pulses, a spike event of the first signal and a pulse of the retroaction signal, in order to induct a potentiated state STP or a depressed state STD at the memristor. An electronic neuromorphic system having synaptic circuits and a method of performing spike timing dependent plasticity STDP by a synaptic circuit are also provided.
Type: Grant
Filed: September 23, 2015
Date of Patent: May 12, 2020
Assignee: POLITECNICO DI MILANO
Inventors: Daniele Ielmini, Simone Balatti, Stefano Ambrogio, Zhongqiang Wang
Fairly narrow claim 1 based on memristor:
https://worldwide.espacenet.com/patent/search/family/058282521/publication/US10650308B2?q=us10650308Claim 1: A synaptic circuit performing spike-timing dependent plasticity (STDP) interposed between a pre-synaptic neuron and a post-synapse neuron and comprising:
a memristor having a variable resistance value (R) and being configured to receive a first signal (V TE) from the pre-synaptic neuron;
transistor structure connected in series with the memristor and being configured for receiving a second signal (V CG) from the pre-synaptic neuron and being configured for providing an output signal (I BE) to the post-synaptic neuron,
wherein the transistor structure is further configured to receive a retroaction signal (V FG) generated from the post-synaptic neuron, and
the memristor is configured to modify the resistance value (R) based on a delay (Δt) between two at least partially overlapped input pulses, a spike event (F E1) of the first signal (V TE) and a pulse (V FGMAX) of the retroaction signal (V FG), in order to induct a potentiated state (STP) upon a decreasing the resistance value (R) and a depressed state (STD) upon increasing the resistance value (R) at the memristor, and
wherein the transistor structure comprises a first transistor and a second transistor that are connected in parallel and are interposed between a first inner node and a second inner node of the transistor structure, the first transistor having a control terminal coupled to the pre-synaptic neuron for receiving the second signal (V CG) and the second transistor having a control terminal connected to the post-synaptic neuron for receiving the retroaction signal (V FG), and
wherein the memristor is a two terminals memristor interposed between the first input terminal and the first inner node.
- Forums
- ASX - By Stock
- BRN
- 2020 BRN Discussion
2020 BRN Discussion, page-4318
-
-
- There are more pages in this discussion • 24,996 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Featured News
Add BRN (ASX) to my watchlist
(20min delay)
|
|||||
Last
17.5¢ |
Change
0.005(2.94%) |
Mkt cap ! $343.4M |
Open | High | Low | Value | Volume |
16.5¢ | 18.5¢ | 16.5¢ | $1.865M | 10.58M |
Buyers (Bids)
No. | Vol. | Price($) |
---|---|---|
36 | 1001708 | 17.0¢ |
Sellers (Offers)
Price($) | Vol. | No. |
---|---|---|
17.5¢ | 167790 | 3 |
View Market Depth
No. | Vol. | Price($) |
---|---|---|
36 | 1001708 | 0.170 |
30 | 1715076 | 0.165 |
29 | 3371889 | 0.160 |
50 | 2308034 | 0.155 |
121 | 3674069 | 0.150 |
Price($) | Vol. | No. |
---|---|---|
0.175 | 167790 | 3 |
0.180 | 783725 | 9 |
0.185 | 1225940 | 19 |
0.190 | 815776 | 21 |
0.195 | 747794 | 13 |
Last trade - 16.10pm 13/09/2024 (20 minute delay) ? |
Featured News
BRN (ASX) Chart |
The Watchlist
LPM
LITHIUM PLUS MINERALS LTD.
Simon Kidston, Non--Executive Director
Simon Kidston
Non--Executive Director
SPONSORED BY The Market Online