Spiking maxpooling neuron

A max-pooling layer comprising a max-pooling neuron, the max-pooling layer comprising:

• a first integrator circuit configured to filter a first input train from a first neuron of a previous layer and generate a first filtered input train;
• a second integrator circuit configured to filter a second input train from a second neuron of the previous layer and generate a second filtered input train;
• a comparator circuit configured to amplify a difference between the first filtered input train and the second filtered input train and generate an amplified differential signal;
• a Schmitt trigger circuit configured to generate a binary output signal based on the amplified differential signal;
• and
• a pair of switches comprising a first switch and a second switch, the pair of switches having a common first terminal coupled to an output node of the max-pooling neuron, the pair of switches having a common control terminal configured to receive the binary output signal of the Schmitt trigger circuit, a second terminal of the first switch coupled to the first input train, and a second terminal of the second switch coupled to the second input train.

A neural network, comprising:

• a first layer having a first neuron and a second neuron, the first neuron configured to provide a first input train, the second neuron configured to provide a second input train;
• and
• a max-pooling layer having a max-pooling neuron, the max-pooling neuron comprising:
• a first integrator circuit configured to filter the first input train and generate a first filtered input train,
• a second integrator circuit configured to filter the second input train and generate a second filtered input train,
• a comparator circuit configured to amplify a difference between the first filtered input train and the second filtered input train and generate an amplified differential signal,
• a Schmitt trigger circuit configured to generate a binary output signal based on the amplified differential signal, and
• a pair of switches comprising a first switch and a second switch, the pair of switches having a common first terminal coupled to an output node of the max-pooling neuron, the pair of switches having a common control terminal configured to receive the binary output signal of the Schmitt trigger circuit, a second terminal of the first switch coupled to the first input train, and a second terminal of the second switch coupled to the second input train.