JP6536765B1 - 積和演算器、ニューロモーフィックデバイス及び積和演算方法 - Google Patents
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Abstract
Description
Claims (8)
- 入力値に対応する第1入力信号に重みを乗算して第1出力信号を生成し、前記第1出力信号を出力する複数の第1積演算素子と、
前記第1入力信号の入力による複数の前記第1積演算素子各々の寄生容量への充電に起因する過渡応答後に定常状態となっている時点から、前記第1入力信号の入力による複数の前記第1積演算素子各々の前記寄生容量からの放電に起因する過渡応答が発生し始めた後の時点までの演算期間において、複数の前記第1積演算素子各々が出力した前記第1出力信号の総和を演算する和演算部と、
を備える積和演算器。 - 複数の前記第1積演算素子各々は、書き込み端子と、共通端子と、読み出し端子とを有する抵抗変化素子である、
請求項1に記載の積和演算器。 - 複数の前記第1積演算素子各々は、トンネル磁気抵抗効果素子である、
請求項1に記載の積和演算器。 - 正のバイアスの発生に使用される第2入力信号に重みを乗算して第2出力信号を生成し、前記第2出力信号を出力する少なくとも一つの第2積演算素子を更に備え、
前記和演算部は、複数の前記第1積演算素子各々が出力した前記第1出力信号及び少なくとも一つの前記第2積演算素子各々が出力した前記第2出力信号の総和を演算する、
請求項1から3のいずれか一つに記載の積和演算器。 - 第3入力信号が入力され、前記第3入力信号に基づいて第3出力信号を前記和演算部に出力する抵抗器を更に備え、
前記和演算部は、前記演算期間において、複数の前記第1積演算素子各々が出力した前記第1出力信号及び前記抵抗器が出力した前記第3出力信号の総和を演算する、
請求項1から3のいずれか一つに記載の積和演算器。 - 第2入力信号に重みを乗算して第2出力信号を生成し、前記第2出力信号を出力する少なくとも一つの第2積演算素子と、
第3入力信号が入力され、前記第3入力信号に基づいて第3出力信号を前記和演算部に出力する抵抗器と、
を更に備え、
前記和演算部は、前記演算期間において、複数の前記第1積演算素子各々が出力した前記第1出力信号、複数の前記第2積演算素子各々が出力した前記第2出力信号及び少なくとも一つの前記第2積演算素子各々が出力した前記第2出力信号の総和を演算する、
請求項1から3のいずれか一つに記載の積和演算器。 - 請求項1から請求項6のいずれか一つに記載の積和演算器を備えるニューロモーフィックデバイス。
- 請求項1から請求項6のいずれか一つに記載の積和演算器による積和演算方法であって、
複数の前記第1積演算素子各々が、前記第1入力信号に重みを乗算して前記第1出力信号を生成し、前記第1出力信号を出力する積演算工程と、
前記第1入力信号の入力による複数の前記第1積演算素子各々の前記寄生容量への充電に起因する過渡応答後に定常状態となっている時点から、前記第1入力信号の入力による複数の前記第1積演算素子各々の寄生容量からの放電に起因する過渡応答が発生し始めた後の時点までの前記演算期間において、前記和演算部が、複数の前記第1積演算素子各々が出力した前記第1出力信号の総和を演算する和演算工程と、
を含む積和演算方法。
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