Multiply-accumulate device and multiply-accumulate method
AssigneeSony Group Corporation
InventorsYasushi Fujinami, Hiroyuki Yamagishi
Life of this patent
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Abstract
A multiply-accumulate device (10) includes: a comparison unit (18) that compares, with a threshold voltage, a voltage generated by an electric charge stored in a storage unit (14), and outputs an output signal at timing at which the voltage exceeds the threshold voltage; and a control circuit (110) that reduces, based on a predetermined set value, a charging current to the storage unit (14) from a plurality of input units (13) connected to the storage unit (14).
Claims13
A multiply-accumulate device comprising:
- a comparator configured to compare, with a threshold voltage, a voltage generated by an electric charge stored in a storage circuit, and to output an output signal at a timing at which the voltage exceeds the threshold voltage;
- and
- a control circuit configured to reduce, based on a predetermined set value, a charging current provided to the storage circuit from a plurality of inputs connected to the storage circuit,
- wherein the control circuit reduces the charging current by changing a number of the plurality of inputs which provide the charging current to the storage circuit.
A multiply-accumulate device comprising:
- a comparator configured to compare, with a threshold voltage, a voltage generated by an electric charge stored in a storage circuit, and to output an output signal at a timing at which the voltage exceeds the threshold voltage;
- and
- a control circuit configured to reduce, based on a predetermined set value, a charging current provided to the storage circuit from a plurality of inputs connected to the storage circuit,
- wherein the control circuit reduces the threshold voltage supplied to the comparator based on a value of the voltage of the storage circuit, and
- the control circuit reduces the threshold voltage so that the threshold voltage becomes equal to or higher than a maximum value of a voltage of the storage circuit at a first time when the output signal is output from the comparator.
A multiply-accumulate device comprising:
- a comparator configured to compare, with a threshold voltage, a voltage generated by an electric charge stored in a storage circuit, and to output an output signal at a timing at which the voltage exceeds the threshold voltage;
- a control circuit configured to reduce, based on a predetermined set value, a charging current provided to the storage circuit from a plurality of inputs connected to the storage circuit;
- a first clip circuit that clips a minimum value of the output signal to a first value;
- and
- a second clip circuit that clips a maximum value of the output signal to a second value.
A multiply-accumulate method comprising:
- comparing, with a threshold voltage, a voltage generated by an electric charge stored in a storage circuit, and to output an output signal at a timing at which the voltage exceeds the threshold voltage;
- and
- reducing, based on a predetermined set value, a charging current provided to the storage circuit from a plurality of inputs connected to the storage circuit,
- wherein reducing the charging current is performed by changing a number of the plurality of inputs which provide the charging current to the storage circuit.
Dependencies are inferred from the claim text.