Patent ID: 11861488
Assignee: HRL LABORATORIES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 1:
2. A neural circuit comprising:
a first neuron circuit comprising first and second resistively coupled relaxation oscillators, the first and second relaxation oscillators comprising respectively first and second passive load resistors in series with first and second locally-active current-controlled negative differential resistance devices, in series with first and second DC opposite voltage sources, in parallel with first and second grounded capacitors; wherein:
said first relaxation oscillator is coupled to an input node of the first neuron circuit by a first load capacitor and said first DC voltage source is a first, negative, voltage source; and
said second DC voltage source is a second, positive, voltage source; said second relaxation oscillator being also coupled to an output node of the first neuron circuit;
a second neuron circuit, comprising third and fourth resistively coupled relaxation oscillators, the third and fourth relaxation oscillators comprising respectively third and fourth passive load resistors in series with third and fourth locally-active current-controlled negative differential resistance devices, in series with third and fourth DC opposite voltage sources, in parallel with third and fourth grounded capacitors wherein:
said third relaxation oscillator is also coupled to an input node of the second neuron circuit by a third load capacitor and said third DC voltage source is a third, positive, voltage source; and
said fourth DC voltage source is a fourth, negative, voltage source; said fourth relaxation oscillator being coupled to an output node of the second neuron circuit;
the first and second neuron circuits being connected in series.