JP2023532186A - ユーザインタフェースを識別するシステム及び方法 - Google Patents
ユーザインタフェースを識別するシステム及び方法 Download PDFInfo
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- JP2023532186A JP2023532186A JP2022574845A JP2022574845A JP2023532186A JP 2023532186 A JP2023532186 A JP 2023532186A JP 2022574845 A JP2022574845 A JP 2022574845A JP 2022574845 A JP2022574845 A JP 2022574845A JP 2023532186 A JP2023532186 A JP 2023532186A
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Classifications
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Abstract
Description
本願は、2020年6月5日に出願された米国仮特許出願第63/035,497号の利益及び優先権を主張し、その全体が参照により本明細書に組み込まれるものとする。
ここで、*は、畳み込み関数を示し、y(t)は、音センサで測定された信号であり、S1(t)は、呼吸治療装置の流れ発生器内又はこれによって生成されるノイズ又は音などの音又はノイズ源であり、h1(t)は、ノイズ又は音源から音センサまでのシステムIRFである。インパルス応答関数(IRF)は、単位インパルス入力に対するシステム応答である。
ここで、Y(f)は、y(t)のフーリエ変換であり、S1(f)は、s1(t)のフーリエ変換であり、H1(f)は、h1(t)のフーリエ変換である。このような場合、時間領域における畳み込みは、周波数領域における乗算となる。
ここで、「τ」は、単位が秒で測定される、ケフレンシとして知られる実数値変数である。そのため、時間領域において畳み込みである効果が、スペクトルの対数において加法となり、ケプストラムにおいてもそのままである。
式中、ΔP・は、導管の特性である圧力損失である。圧力損失ΔP・は、総流量Qtの関数である。
換言すれば、第1の直交座標812及び第2の直交座標816を通過する二次曲線に対して、非ゼロ定数k1は1/140(約0.00714)であり、非ゼロ定数k2は11/70(約0.157)である。したがって、いくつかの実装形態では、圧力対流量曲線850は、式(21)として推定及び/又は定義することができる。
Claims (40)
- 呼吸治療システム内を流れる空気に関連するフローデータを受信するステップと、
前記呼吸治療システムに関連する音響データを受信するステップと、
受信された前記フローデータ及び受信された前記音響データを分析するステップと、
前記分析に少なくとも部分的に基づいて、ユーザインタフェースのマスクタイプを決定するステップとを含む、ユーザインタフェースを識別する方法。 - 前記ユーザインタフェースの決定された前記マスクタイプは、(i)フルフェイス、(ii)部分フェイス、(iii)鼻、又は(iv)鼻腔枕である、請求項1に記載の方法。
- 前記ユーザインタフェースの決定された前記マスクタイプは、マスクサイズを含む、請求項1~2に記載の方法。
- 前記マスクサイズは、特小、小、中、大、特大のいずれかである、請求項3に記載の方法。
- 前記ユーザインタフェースの決定された前記マスクタイプは、マスクスタイルを含む、請求項1~4に記載の方法。
- 前記マスクスタイルは、導管型、顔面装着型、又はその両方を含む、請求項5に記載の方法。
- 前記ユーザインタフェースの決定された前記マスクタイプは、前記ユーザインタフェースのマスクモデルを含む、請求項1~6に記載の方法。
- 前記ユーザインタフェースの決定された前記マスクタイプは、前記ユーザインタフェースのマスクメーカーを含む、請求項1~7に記載の方法。
- 分析された前記フローデータに少なくとも部分的に基づいて、前記ユーザインタフェースのフローベースのマスクタイプを決定するステップと、
分析された前記音響データに少なくとも部分的に基づいて、前記ユーザインタフェースの音響的マスクタイプを決定するステップと、をさらに含む、請求項1~8のいずれか一項に記載の方法。 - 前記ユーザインタフェースの前記マスクタイプを決定する前記ステップは、決定された前記フローベースのマスクタイプ及び決定された前記音響的マスクタイプに少なくとも部分的に基づいて前記マスクタイプを決定するステップを含む、請求項9に記載の方法。
- 前記フローベースのマスクタイプについて、複数のマスクタイプのそれぞれに対応する尤度を決定するステップをさらに含む、請求項9~10のいずれか一項に記載の方法。
- 前記音響的マスクタイプについて、複数のマスクタイプのそれぞれに対応する尤度を決定するステップをさらに含む、請求項9~11のいずれか一項に記載の方法。
- 前記フローベースのマスクタイプについて、受信された前記フローデータに関連するフロー信号品質を決定するステップをさらに含む、請求項9~12のいずれか一項に記載の方法。
- 前記フロー信号品質は、受信された前記フローデータ又は分析された前記フローデータに少なくとも部分的に基づいて決定される、請求項13に記載の方法。
- 前記音響的マスクタイプについて、受信された前記音響データに関連する音響信号品質を決定するステップをさらに含む、請求項9~14のいずれか一項に記載の方法。
- 前記音響信号品質は、受信された前記音響データ又は分析された前記音響データに少なくとも部分的に基づいて決定される、請求項15に記載の方法。
- 決定された前記フローベースのマスクタイプ及び決定された前記音響的マスクタイプに少なくとも部分的に基づいて、複数のマスクタイプのそれぞれについて重み付け尤度を生成するステップをさらに含む、請求項9~16のいずれか一項に記載の方法。
- 複数のマスクタイプのそれぞれについて重み付け尤度を生成する前記ステップは、さらに、受信された前記フローデータに関連するフロー信号品質及び/又は受信された前記音響データに関連する音響信号品質に少なくとも部分的に基づく、請求項17に記載の方法。
- 前記ユーザインタフェースの前記マスクタイプを決定する前記ステップは、重み付き尤度が最も高い前記複数のマスクタイプのうちの1つを、前記ユーザインタフェースの前記マスクタイプとして選択するステップを含む、請求項17~18のいずれか一項に記載の方法。
- 受信された前記フローデータに関連するフロー信号品質及び/又は受信された前記音響データに関連する音響信号品質に少なくとも部分的に基づいて、複数のマスクタイプのそれぞれについて前記重み付け尤度を修正するステップをさらに含む、請求項17~19のいずれか一項に記載の方法。
- 前記ユーザインタフェースの前記マスクタイプを決定する前記ステップは、修正された重み付き尤度が最も高い前記複数のマスクタイプのうちの1つを、前記ユーザインタフェースの前記マスクタイプとして選択するステップを含む、請求項11~20のいずれか一項に記載の方法。
- 前記音響データは、前記呼吸治療システムのマイクロフォンから受信される、請求項1~21のいずれか一項に記載の方法。
- 前記マイクロフォンが前記呼吸治療システムの外部にある、請求項22に記載の方法。
- 前記マイクロフォンは、スマートデバイス、スマートフォン、スマートスピーカー、又はそれらの任意の組み合わせに結合される、請求項23に記載の方法。
- 前記マイクロフォンは、(i)前記呼吸治療システムの呼吸治療装置の導管、(ii)前記呼吸治療システムの前記呼吸治療装置の回路基板、(iii)前記呼吸治療システムのコネクタ、(iv)前記呼吸治療システムの前記ユーザインタフェース、又は(v)前記呼吸治療システムのその他の構成要素に結合された一体型マイクロフォンである、請求項22~24のいずれか一項に記載の方法。
- 前記呼吸治療装置は、睡眠セッション中に前記ユーザインタフェースを介して前記ユーザの気道に加圧空気を供給するように構成される、請求項25に記載の方法。
- 前記呼吸治療装置は、前記導管を介して前記ユーザインタフェースに取り付けるように構成され、前記呼吸治療装置、前記ユーザインタフェース及び前記導管は、前記ユーザインタフェースが前記ユーザの顔に結合されたときに、供給された前記加圧空気が前記ユーザの前記気道に導かれるように、経路を形成する、請求項26に記載の方法。
- 分析された前記音響データは、ケプストラムデータ及び/又は音響スペクトルシグネチャを含む、請求項1~27のいずれか一項に記載の方法。
- 受信された前記音響データを分析する前記ステップは、ケプストラム解析、オートケプストラム解析、自己相関解析、スペクトル分析、又はそれらの任意の組み合わせを実行するステップを含む、請求項1~28のいずれか一項に記載の方法。
- 前記スペクトル分析は、スライディングウィンドウを使用した高速フーリエ変換(FFT)、スペクトログラム、短時間フーリエ変換(STFT)、ウェーブレットベースの解析、又はそれらの組み合わせを含む、請求項29に記載の方法。
- 受信された前記フローデータ及び受信された前記音響データを分析する前記ステップは、受信された前記フローデータ及び/又は受信された前記音響データを処理して複数の特徴を識別するステップを含む、請求項1~30のいずれか一項に記載の方法。
- 前記複数の特徴は、(i)スペクトルシグネチャ、(ii)周波数、(iii)振幅、(iv)ベースライン値に対する(i)~(iii)のいずれかの変化、又は(v)それらの組み合わせを含む、請求項31に記載の方法。
- 前記呼吸治療システム内を流れる前記空気の圧力を表す、前記呼吸治療システムに関連する圧力データを受信するステップをさらに含み、受信された前記フローデータ及び受信された前記音響データを分析する前記ステップは、
受信された前記圧力データの圧力値と受信された前記フローデータの流量値との比率をマッピングするステップであって、前記比率が圧力と流量との1つ以上の所定の比率にマッピングされ、各既知の比率が複数のタイプのマスクのうちの1つに対応するステップと、
前記マッピングがマスクタイプの特徴であるか否かを判定するステップと、を含む、請求項1~32のいずれか一項に記載の方法。 - 受信された前記フローデータ及び受信された前記音響データを分析する前記ステップは、
受信された前記圧力データの圧力値と受信された前記フローデータの流量値との比率をマッピングするステップであって、前記比率が圧力と流量との1つ以上の所定の比率にマッピングされ、各既知の比率が複数のタイプのマスクのうちの1つに対応するステップと、
前記マッピングがマスクタイプの特徴であるか否かを判定するステップと、を含む、請求項1~32のいずれか一項に記載の方法。 - 受信された前記フローデータ及び/又は受信された前記音響データに少なくとも部分的に基づいて、特定のユーザに対する決定された前記マスクタイプの適合性を推定するステップをさらに含む、請求項1~34のいずれか一項に記載の方法。
- 1つ以上のプロセッサを含む制御システムと、
機械可読命令を格納したメモリと、を含むシステムであって、
前記制御システムは、前記メモリに結合され、前記メモリ内の前記機械実行可能命令が前記制御システムの前記1つ以上のプロセッサの少なくとも1つによって実行されるときに、請求項1~35のいずれか一項に記載の方法が実施される、システム。 - 請求項1~35のいずれか一項に記載の方法を実行するように構成された1つ以上のプロセッサを含む制御システムを含む、ユーザインタフェースを識別するシステム。
- コンピュータによって実行されるときに、コンピュータに請求項1~35のいずれか一項に記載の方法を実施させる命令を含むコンピュータプログラムプロダクト。
- 前記コンピュータプログラムプロダクトは、非一時的なコンピュータ可読媒体である、請求項38に記載のコンピュータプログラムプロダクト。
- 個人の睡眠段階を決定するシステムであって、
個人に加圧空気を供給するように構成された呼吸治療システムと、
機械可読命令を記憶するメモリと、
前記機械可読命令を実行して、
呼吸治療システム内を流れる空気に関連するフローデータを受信し、
前記呼吸治療システムに関連する音響データを受信し、
受信された前記フローデータ及び受信された前記音響データを分析し、
前記分析に少なくとも部分的に基づいて、前記ユーザインタフェースのマスクタイプを決定するように構成された1つ以上のプロセッサを含む制御システムと、を含む、システム。
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