Product-sum calculation device and product-sum calculation method
AssigneesSony Group Corporation, Sony Semiconductor Solutions Corporation
InventorsYusuke Shuto, Fumitaka Sugaya, Toshiyuki Kabayashi
Life of this patent
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Abstract
To provide a product-sum calculation device that includes a plurality of synapses including a transistor and having a variable resistance value, a plurality of input lines extending in a first direction and that propagates an input signal to each of the plurality of synapses, a plurality of output lines extending in a second direction orthogonal to the first direction, and that outputs a product-sum calculation result of the input signal from each of the plurality of synapses, and a charge and discharge control unit that controls an output state of the product-sum calculation result by controlling a charge and discharge state of the output line on the basis of a polarity of the transistor.
Claims14
A product-sum calculation device, comprising:
- a plurality of synapses including a transistor, wherein each of the plurality of synapses has a variable resistance value;
- a plurality of input lines that extends in a first direction, wherein the plurality of input lines is configured to propagate an input signal to each of the plurality of synapses;
- a plurality of output lines that extends in a second direction orthogonal to the first direction, wherein the plurality of output lines is configured to output a product-sum calculation result of the input signal from each of the plurality of synapses;
- and
- a charge and discharge control unit configured to:
- one of precharge or predischarge, prior to input of the input signal from the plurality of input lines, each of the plurality of output lines based on a polarity of the transistor, wherein each of the plurality of output lines is electrically connected to a drain of the transistor;
- control a charge and discharge state of each of the plurality of output lines based on the polarity of the transistor;
- and
- control, based on the input signal and the controlled charge and discharge state, an output state of the product-sum calculation result.
A product-sum calculation method, comprising:
- charging or discharging, based on a polarity of a transistor, an output line of a plurality of synapses including the transistor, wherein each of the plurality of the synapses has a variable resistance value;
- controlling a plurality of output lines to output_a product-sum calculation result, wherein the plurality of output lines includes the output line;
- one of precharging or predischarging, prior to input of an input signal from a plurality of input lines, each of the plurality of output lines based on the polarity of the transistor, wherein each of the plurality of output lines is electrically connected to a drain of the transistor;
- controlling discharge or charge of the charged or discharged output line based on the product-sum calculation result of the input signal input to the plurality of synapses;
- and
- controlling, based on the input signal and the controlled charge or discharge, an output state of the product-sum calculation result.
Dependencies are inferred from the claim text.