JP7236534B2 - 非侵襲で装着可能な脳インターフェースシステム - Google Patents
非侵襲で装着可能な脳インターフェースシステム Download PDFInfo
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Description
具体的には、図9Aは1つ以上のスイッチを実装可能なnpnバイポーラ接合トランジスタを示し、図9Bは1つ以上のスイッチを実装可能なpnpバイポーラ接合トランジスタを示し、図9Cは1つ以上のスイッチを実装可能なn型MOSFET(nMOS)を示し、図9Dは1つ以上のスイッチを実装可能なp型MOSFET(pMOS)を示し、図9Eは1つ以上のスイッチを実装可能な伝送ゲートを示し、かつ、図9Fは1つ以上のスイッチを実装可能な方形波発生器とキャパシタを示す。
Claims (19)
- 使用者の頭部に装着されるように構成されるヘッドギアと、
該ヘッドギアに取り外し可能に取り付けられるように構成されて、各々が前記使用者の脳内の標的から反射された後の光の光子を検出するように構成される複数の光検出器を備える、独立した複数の光検出部と、
複数の配線によって前記光検出部の各々と通信可能に結合して前記光検出部を制御するように構成される主制御部と、
該主制御部と前記光検出部用の電源を備え、
前記主制御部は、前記電源からの電力を供する電力ケーブルに接続するように構成され
る入力電力ポートを備え、
前記複数の光検出部に含まれる光検出器は、単一光子アバランシェダイオード(SPAD)と、前記SPADが待機状態である間には、電源のバイアス電圧によって充電され、かつ、前記SPADが動作状態にされるときには、前記SPADにかかる電圧が前記SPADの破壊電圧よりも大きくなるように前記SPADの出力ノードへ前記バイアス電圧を供給するように構成されるキャパシタを有する、
非侵襲で装着可能な脳インターフェースシステム。 - 前記光を発生させるように構成される光源をさらに備える、請求項1に記載の脳インターフェースシステム。
- 前記光源は、前記光検出部の各々内に含まれる独立の光源を含む、請求項2に記載の脳インターフェースシステム。
- 前記光源は前記主制御部内に含まれる、請求項2に記載の脳インターフェースシステム。
- 前記ヘッドギアは複数の切り抜き部を備え、
前記光検出部は前記切り抜き部内で適合するように構成される、
請求項1に記載の脳インターフェースシステム。 - 前記複数の切り抜き部内に含まれる各切り抜き部は、前記ヘッドギア内に埋め込まれる剛性輪によって取り囲まれ、かつ、前記ヘッドギアへの前記光検出部の取り付けを容易にするように構成される、請求項5に記載の脳インターフェースシステム。
- 前記ヘッドギアは複数の突出部を有し、かつ、
前記光検出部は、前記突出部に取り付けられるように構成される、
請求項1に記載の脳インターフェースシステム。 - 前記突出部の各々は、前記ヘッドギアへの前記光検出部の取り付けを容易にするように構成される剛性輪を有する、請求項7に記載の脳インターフェースシステム。
- 前記配線の少なくとも一部は、前記光検出部から前記ヘッドギア内の前記主制御部へ貫通する、請求項1に記載の脳インターフェースシステム。
- 前記主制御部は、前記ヘッドギア内部に設けられる、請求項1に記載の脳インターフェースシステム。
- 前記主制御部は、前記使用者の頭部以外の場所に装着されるように構成される、請求項1に記載の脳インターフェースシステム。
- 前記電源は、前記使用者の頭部以外の場所に装着されるように構成される、請求項1に記載の脳インターフェースシステム。
- 前記電源は、前記使用者の肩又はウエストに装着されるように構成される、請求項1に記載の脳インターフェースシステム。
- 前記主制御部は、前記光の光子を検出するように前記光検出部の各々を駆動することによって前記光検出部を制御する、請求項1に記載の脳インターフェースシステム。
- 前記ヘッドギアは、キャップ、つばなし帽子、ヘルメット、又はヘッドバンドによって実装される、請求項1に記載の脳インターフェースシステム。
- 前記キャパシタは、前記電源から切り離されている間に、前記バイアス電圧を前記SPADの前記出力ノードに供給する、請求項1に記載の脳インターフェースシステム。
- 前記光検出器はさらに、前記SPADの入力ノードに接続され、かつ、前記入力ノードに逆バイアス電圧を供給するように構成されるさらなる電源と、スイッチ構成とを備え、
前記逆バイアス電圧は前記SPADの破壊電圧以下の大きさを有し、前記電源は、前記キャパシタと選択的に接続して前記キャパシタを前記バイアス電圧で充電し、前記バイアス電圧は、前記さらなる電源によって供給される前記逆バイアス電圧の大きさ未満の大きさを有する過剰バイアス電圧で、
前記スイッチ構成は、前記キャパシタが前記過剰バイアス電圧によって充電され、かつ、前記電源から切り離されている間に、前記キャパシタを前記SPADの出力ノードに接続することによって前記SPADを動作状態にするように構成され、
前記キャパシタが前記SPADの前記出力ノードに接続されるときには、前記キャパシタは、前記SPADにかかる電圧が前記破壊電圧よりも大きくなるように前記SPADの前記出力ノードへ前記過剰バイアス電圧を供給する、
請求項1に記載の脳インターフェースシステム。 - 前記キャパシタが前記SPADの出力ノードに接続され、
前記電源は、前記キャパシタと選択的に接続して前記キャパシタを前記バイアス電圧で充電し、前記バイアス電圧は前記SPADの破壊電圧以下の大きさを有し、
前記光検出器はさらに、前記バイアス電圧の大きさ未満の大きさを有する逆過剰バイアス電圧を供給するように構成されるさらなる電源と、前記キャパシタが前記バイアス電圧によって充電され、かつ、前記電源から切り離されている間に、前記さらなる電源を前記SPADの入力ノードに接続することによって前記SPADを動作状態にするように構成されるスイッチ構成を備える、
請求項1に記載の脳インターフェースシステム。 - 複数の切り抜き部を備え、使用者の頭部に装着されるように構成されるヘッドギアと、
該ヘッドギアに取り外し可能に取り付けられるように構成されて、かつ、前記切り抜き部の内部で適合するように構成されて、光を発生させる光源及び前記使用者の脳内の標的から反射された後の前記光の光子を検出するように構成される複数の光検出器を有する、独立した複数の光検出部と、
複数の配線によって前記光検出部の各々と通信可能に結合して前記光検出部を制御するように構成される主制御部と、
前記使用者の前記頭部以外の場所に装着され、前記主制御部と電力ケーブルよって接続して、前記主制御部と前記光検出部用の電力を供するように構成される電源とを備え、
前記複数の光検出部に含まれる光検出器は、単一光子アバランシェダイオード(SPAD)と、前記SPADが待機状態である間には、電源のバイアス電圧によって充電され、かつ、前記SPADが動作状態にされるときには、前記SPADにかかる電圧が前記SPADの破壊電圧よりも大きくなるように前記SPADの出力ノードへ前記バイアス電圧を供給するように構成されるキャパシタを有する、
非侵襲で装着可能な脳インターフェースシステム。
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