JP2013013319A - 受信アンテナインピーダンス変調を介した逆方向リンクシグナリング - Google Patents
受信アンテナインピーダンス変調を介した逆方向リンクシグナリング Download PDFInfo
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Abstract
【解決手段】結合モード領域内に配置された受信アンテナが共振周波数近くで共振する。受信アンテナは2つのアンテナ間の結合からエネルギーを抽出する。受信アンテナから送信アンテナにシグナリングすることは、第1の受信信号状態をシグナリングするために受信アンテナに対して第1の電力消費状態を発生させることと、第2の受信信号状態をシグナリングするために受信アンテナに対して第2の電力消費状態を発生させることとによって実行される。送信アンテナから受信アンテナにシグナリングすることは、第1の送信信号状態をシグナリングするために送信アンテナ上の共振周波数を使用可能にすることと、第2の送信信号状態をシグナリングするために送信アンテナ上の共振周波数を使用不可能にすることとによって実行される。
【選択図】図14A
Description
本出願は、
2008年6月11日に出願された「REVERSE LINK SIGNALING VIA RECEIVE ANTENNA IMPEDANCE MODULATION」と題する米国仮特許出願番号第61/060,735号と、
2008年6月11日に出願された「SIGNALING CHARGING IN WIRELESS POWER ENVIRONMENT」と題する米国仮特許出願番号第61/060,738号と、
2008年5月13日に出願された「ADAPTIVE TUNING MECHANISM FOR WIRELESS POWER TRANSFER」と題する米国仮特許出願番号第61/053,008号と、
2008年5月13日に出願された「EFFICIENT POWER MANAGEMENT SCHEME FOR WIRELESS POWER CHARGING SYSTEMS」と題する米国仮特許出願番号第61/053,010号と、
2008年6月11日に出願された「TRANSMIT POWER CONTROL FOR A WIRELESS CHARGING SYSTEM」と題する米国仮特許出願番号第61/060,741号と、
2008年5月13日に出願された「REPEATERS FOR ENHANCEMENT OF WIRELESS POWER TRANSFER」と題する米国仮特許出願番号第61/053,000号と、
2008年5月13日に出願された「WIRELESS POWER TRANSFER FOR APPLIANCES AND EQUIPMENTS」と題する米国仮特許出願番号第61/053,004号と、
2008年7月16日に出願された「WIRELESS POWER TRANSFER USING NEGATIVE RESISTANCE」と題する米国仮特許出願番号第61/081,332号と、
2008年5月13日に出願された「EMBEDDED RECEIVE ANTENNA FOR WIRELESS POWER TRANSFER」と題する米国仮特許出願番号第61/053,012号と、
2008年5月13日に出願された「PLANAR LARGE AREA WIRELESS CHARGING SYSTEM」と題する米国仮特許出願番号第61/053,015号と
の、米国特許法第119条(e)項に基づく優先権を主張する。
ヌル=送信コマンドなし
DD=デバイス番号
TT=デバイスタイプ
PP=要求される電力
rr=乱数
cc=チェックサム
NN=タイムスロットの開始、および
MM=タイムスロットの終了
表2の説明において、ヌルコマンドは、送信機が順方向リンク期間424中にメッセージングを送信しないことを意味する。行2において、送信機は新デバイス照会(NDQ)を送信する。受信デバイスが応答する場合、受信デバイスは、デバイス番号(デバイス番号が送信機によって割り当てられるまで、新しいデバイスでは0であるはずである)、電力要求、乱数、および受信応答中のすべてのデータビットのチェックサムとともに新デバイス応答(NDR)で応答する。
以下に、本願出願の当初の特許請求の範囲に記載された発明を付記する。
[C1] RF信号を発生するために、送信アンテナによって発生された近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路と
を備えるワイヤレス電力受信機。
[C2] 前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための前記整流器をさらに備える、C1に記載のワイヤレス電力受信機。
[C3] 前記RF信号に動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記RF信号の前記オン/オフキーイング変調を検出するための信号抽出器をさらに備える、C1に記載のワイヤレス電力受信機。
[C4] 前記スイッチング回路が、
前記受信アンテナと接地との間に動作可能に結合された第1のスイッチと、
前記受信アンテナと、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器との間に動作可能に結合された第2のスイッチと
を備える、C1に記載のワイヤレス電力受信機。
[C5] 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチとを備える、
C4に記載のワイヤレス電力受信機。
[C6] 前記第1の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチとを備える、
C4に記載のワイヤレス電力受信機。
[C7] 前記スイッチング回路が、
前記受信アンテナを、接地に結合されたキャパシタに選択的に結合するための第1のスイッチと、
前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記DC信号を、前記接地に結合されたダミー負荷に選択的に結合するための第2のスイッチと、
前記DC信号を前記受信デバイスに選択的に結合するための第3のスイッチと
を備える、C1に記載のワイヤレス電力受信機。
[C8] 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備える、
C7に記載のワイヤレス電力受信機。
[C9] 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチと開状態の前記第3のスイッチとを備える、
C7に記載のワイヤレス電力受信機。
[C10] 前記第1の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチと開状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備える、
C7に記載のワイヤレス電力受信機。
[C11] RF信号を発生するために、送信アンテナによって発生された近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記受信アンテナに動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記RF信号の前記オン/オフキーイング変調を検出するための信号抽出器と
を備えるワイヤレス電力受信機。
[C12] 前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路をさらに備える、C11に記載のワイヤレス電力受信機。
[C13] 前記スイッチング回路が、
前記受信アンテナと接地との間に動作可能に結合された第1のスイッチと、
前記受信アンテナと前記整流器との間に動作可能に結合された第2のスイッチと
を備える、C12に記載のワイヤレス電力受信機。
[C14] 前記スイッチング回路が、
前記受信アンテナを、接地に結合されたキャパシタに選択的に結合するための第1のスイッチと、
前記DC信号を、前記接地に結合されたダミー負荷に選択的に結合するための第2のスイッチと、
前記DC信号を前記受信デバイスに選択的に結合するための第3のスイッチと
を備える、C12に記載のワイヤレス電力受信機。
[C15] 受信アンテナに結合するための近距離場放射を発生させるための送信アンテナと、
増幅器に電力を供給するための電力信号をもつ増幅器であって、前記送信アンテナにRF信号を印加するための増幅器と、
前記増幅器に動作可能に結合され、前記電力信号を介して電流の変化を検出するための負荷感知回路であって、電流の前記変化に応答してデジタル信号を発生する負荷感知回路と
を備えるワイヤレス電力送信機。
[C16] 前記増幅器に動作可能に結合された送信変調信号をさらに備え、前記増幅器がさらに、前記送信変調信号が第1の状態であるときに前記送信アンテナに前記RF信号を印加し、前記送信変調信号が第2の状態であるときに前記送信アンテナにDC信号を印加するためのものである、C15に記載のワイヤレス電力送信機。
[C17] 前記負荷感知回路が、
電源と前記電力信号との間に直列に動作可能に結合されたセンス抵抗と、差動増幅器とを備え、前記差動増幅器が、
前記電源に結合された第1の入力と、
前記電力信号に結合された第2の入力と、
前記デジタル信号に結合された出力と
を備える、C15に記載のワイヤレス電力送信機。
[C18] 前記近距離場放射の結合モード領域内に配設されたワイヤレス電力受信機をさらに備え、前記ワイヤレス電力受信機が、
受信されたRF信号を発生するために、前記送信アンテナによって発生された前記近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合された整流器であって、前記受信されたRF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記受信アンテナに動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記受信されたRF信号の前記オン/オフキーイング変調を検出するための信号抽出器と
を備える、C15に記載のワイヤレス電力送信機。
[C19] 前記近距離場放射の結合モード領域内に配設されたワイヤレス電力受信機をさらに備え、前記ワイヤレス電力受信機が、
受信されたRF信号を発生するために、前記送信アンテナによって発生された前記近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路と
を備える、C15に記載のワイヤレス電力送信機。
[C20] 送信アンテナの近距離場内で結合モード領域を生成するために前記送信アンテナの共振周波数において電磁界を発生させることと、
実質的に前記共振周波数の近くで共振する受信アンテナを前記結合モード領域内に配設することと、
前記送信アンテナの前記近距離場への前記受信アンテナの結合からエネルギーを抽出することと、
第1の受信信号状態をシグナリングするために前記受信アンテナに対して第1の電力消費状態を発生させることと、
第2の受信信号状態をシグナリングするために前記受信アンテナに対して第2の電力消費状態を発生させることと
によって、前記受信アンテナから前記送信アンテナにシグナリングすることと
を備えるワイヤレス電力伝達の方法。
[C21] 前記第1の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数とは実質的に異なる周波数に同調させることによって、前記送信アンテナによる検出から前記受信アンテナをクローキングすることを備え、
前記第2の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数の実質的に近くに同調させることを備える、
C20に記載の方法。
[C22] 前記第1の電力消費状態を発生させることが、前記抽出されたエネルギーを動作電流の消費または蓄積のために受信デバイスに導くことを備え、
前記第2の電力消費状態を発生させることが、前記抽出されたエネルギーを、前記動作電流とは実質的に異なる電流をもつダミー負荷に導くことを備える、
C20に記載の方法。
[C23] 第1の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを可能にすることと、
第2の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを不可能にすることと
によって、前記送信アンテナから前記受信アンテナにシグナリングすることをさらに備える、C20に記載の方法。
[C24] 送信アンテナの近距離場内で結合モード領域を生成するために前記送信アンテナの共振周波数において電磁界を発生させるための手段と、
実質的に前記共振周波数の近くで共振する受信アンテナを用いて、前記結合モード領域内で前記共振周波数を受信するための手段と、
前記送信アンテナの前記近距離場への前記受信アンテナの結合からエネルギーを抽出するための手段と、
第1の受信信号状態をシグナリングするために前記受信アンテナに対して第1の電力消費状態を発生させることと、
第2の受信信号状態をシグナリングするために前記受信アンテナに対して第2の電力消費状態を発生させることと
によって、前記受信アンテナから前記送信アンテナにシグナリングするための手段と
を備えるワイヤレス電力伝達システム。
[C25] 前記第1の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数とは実質的に異なる周波数に同調させることによって、前記送信アンテナによる検出から前記受信アンテナをクローキングするための手段を備え、
前記第2の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数の実質的に近くに同調させるための手段を備える、
C24に記載のシステム。
[C26] 前記第1の電力消費状態を発生させることが、前記抽出されたエネルギーを動作電流の消費または蓄積のために受信デバイスに導くための手段を備え、
前記第2の電力消費状態を発生させることが、前記抽出されたエネルギーを、前記動作電流とは実質的に異なる電流をもつダミー負荷に導くための手段を備える、
C24に記載のシステム。
[C27] 第1の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを可能にすることと、
第2の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを不可能にすることと
によって、前記送信アンテナから前記受信アンテナにシグナリングするための手段をさらに備える、C24に記載のシステム。
Claims (27)
- RF信号を発生するために、送信アンテナによって発生された近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路と
を備えるワイヤレス電力受信機。 - 前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための前記整流器をさらに備える、請求項1に記載のワイヤレス電力受信機。
- 前記RF信号に動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記RF信号の前記オン/オフキーイング変調を検出するための信号抽出器をさらに備える、請求項1に記載のワイヤレス電力受信機。
- 前記スイッチング回路が、
前記受信アンテナと接地との間に動作可能に結合された第1のスイッチと、
前記受信アンテナと、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器との間に動作可能に結合された第2のスイッチと
を備える、請求項1に記載のワイヤレス電力受信機。 - 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチとを備える、
請求項4に記載のワイヤレス電力受信機。 - 前記第1の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチとを備える、
請求項4に記載のワイヤレス電力受信機。 - 前記スイッチング回路が、
前記受信アンテナを、接地に結合されたキャパシタに選択的に結合するための第1のスイッチと、
前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記DC信号を、前記接地に結合されたダミー負荷に選択的に結合するための第2のスイッチと、
前記DC信号を前記受信デバイスに選択的に結合するための第3のスイッチと
を備える、請求項1に記載のワイヤレス電力受信機。 - 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備える、
請求項7に記載のワイヤレス電力受信機。 - 前記第1の状態が、閉状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチと開状態の前記第3のスイッチとを備える、
請求項7に記載のワイヤレス電力受信機。 - 前記第1の状態が、開状態の前記第1のスイッチと閉状態の前記第2のスイッチと開状態の前記第3のスイッチとを備え、
前記第2の状態が、開状態の前記第1のスイッチと開状態の前記第2のスイッチと閉状態の前記第3のスイッチとを備える、
請求項7に記載のワイヤレス電力受信機。 - RF信号を発生するために、送信アンテナによって発生された近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合された整流器であって、前記RF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記受信アンテナに動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記RF信号の前記オン/オフキーイング変調を検出するための信号抽出器と
を備えるワイヤレス電力受信機。 - 前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路をさらに備える、請求項11に記載のワイヤレス電力受信機。
- 前記スイッチング回路が、
前記受信アンテナと接地との間に動作可能に結合された第1のスイッチと、
前記受信アンテナと前記整流器との間に動作可能に結合された第2のスイッチと
を備える、請求項12に記載のワイヤレス電力受信機。 - 前記スイッチング回路が、
前記受信アンテナを、接地に結合されたキャパシタに選択的に結合するための第1のスイッチと、
前記DC信号を、前記接地に結合されたダミー負荷に選択的に結合するための第2のスイッチと、
前記DC信号を前記受信デバイスに選択的に結合するための第3のスイッチと
を備える、請求項12に記載のワイヤレス電力受信機。 - 受信アンテナに結合するための近距離場放射を発生させるための送信アンテナと、
増幅器に電力を供給するための電力信号をもつ増幅器であって、前記送信アンテナにRF信号を印加するための増幅器と、
前記増幅器に動作可能に結合され、前記電力信号を介して電流の変化を検出するための負荷感知回路であって、電流の前記変化に応答してデジタル信号を発生する負荷感知回路と
を備えるワイヤレス電力送信機。 - 前記増幅器に動作可能に結合された送信変調信号をさらに備え、前記増幅器がさらに、前記送信変調信号が第1の状態であるときに前記送信アンテナに前記RF信号を印加し、前記送信変調信号が第2の状態であるときに前記送信アンテナにDC信号を印加するためのものである、請求項15に記載のワイヤレス電力送信機。
- 前記負荷感知回路が、
電源と前記電力信号との間に直列に動作可能に結合されたセンス抵抗と、差動増幅器とを備え、前記差動増幅器が、
前記電源に結合された第1の入力と、
前記電力信号に結合された第2の入力と、
前記デジタル信号に結合された出力と
を備える、請求項15に記載のワイヤレス電力送信機。 - 前記近距離場放射の結合モード領域内に配設されたワイヤレス電力受信機をさらに備え、前記ワイヤレス電力受信機が、
受信されたRF信号を発生するために、前記送信アンテナによって発生された前記近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合された整流器であって、前記受信されたRF信号を、受信デバイスに電力を供給するためのDC信号に変換するための整流器と、
前記受信アンテナに動作可能に結合された信号抽出器であって、オン/オフキーイング変調に応答して送信されたデジタル信号を抽出するために前記受信されたRF信号の前記オン/オフキーイング変調を検出するための信号抽出器と
を備える、請求項15に記載のワイヤレス電力送信機。 - 前記近距離場放射の結合モード領域内に配設されたワイヤレス電力受信機をさらに備え、前記ワイヤレス電力受信機が、
受信されたRF信号を発生するために、前記送信アンテナによって発生された前記近距離場放射を介して前記送信アンテナと結合するための受信アンテナと、
前記受信アンテナに動作可能に結合されたスイッチング回路であって、前記スイッチング回路が第1の状態であるときに前記近距離場放射との結合から前記受信アンテナをクローキングし、前記スイッチング回路が第2の状態であるときに前記受信アンテナが前記送信アンテナと結合することを可能にするためのスイッチング回路と
を備える、請求項15に記載のワイヤレス電力送信機。 - 送信アンテナの近距離場内で結合モード領域を生成するために前記送信アンテナの共振周波数において電磁界を発生させることと、
実質的に前記共振周波数の近くで共振する受信アンテナを前記結合モード領域内に配設することと、
前記送信アンテナの前記近距離場への前記受信アンテナの結合からエネルギーを抽出することと、
第1の受信信号状態をシグナリングするために前記受信アンテナに対して第1の電力消費状態を発生させることと、
第2の受信信号状態をシグナリングするために前記受信アンテナに対して第2の電力消費状態を発生させることと
によって、前記受信アンテナから前記送信アンテナにシグナリングすることと
を備えるワイヤレス電力伝達の方法。 - 前記第1の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数とは実質的に異なる周波数に同調させることによって、前記送信アンテナによる検出から前記受信アンテナをクローキングすることを備え、
前記第2の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数の実質的に近くに同調させることを備える、
請求項20に記載の方法。 - 前記第1の電力消費状態を発生させることが、前記抽出されたエネルギーを動作電流の消費または蓄積のために受信デバイスに導くことを備え、
前記第2の電力消費状態を発生させることが、前記抽出されたエネルギーを、前記動作電流とは実質的に異なる電流をもつダミー負荷に導くことを備える、
請求項20に記載の方法。 - 第1の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを可能にすることと、
第2の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを不可能にすることと
によって、前記送信アンテナから前記受信アンテナにシグナリングすることをさらに備える、請求項20に記載の方法。 - 送信アンテナの近距離場内で結合モード領域を生成するために前記送信アンテナの共振周波数において電磁界を発生させるための手段と、
実質的に前記共振周波数の近くで共振する受信アンテナを用いて、前記結合モード領域内で前記共振周波数を受信するための手段と、
前記送信アンテナの前記近距離場への前記受信アンテナの結合からエネルギーを抽出するための手段と、
第1の受信信号状態をシグナリングするために前記受信アンテナに対して第1の電力消費状態を発生させることと、
第2の受信信号状態をシグナリングするために前記受信アンテナに対して第2の電力消費状態を発生させることと
によって、前記受信アンテナから前記送信アンテナにシグナリングするための手段と
を備えるワイヤレス電力伝達システム。 - 前記第1の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数とは実質的に異なる周波数に同調させることによって、前記送信アンテナによる検出から前記受信アンテナをクローキングするための手段を備え、
前記第2の電力消費状態を発生させることが、前記受信アンテナの前記共振周波数を前記送信アンテナの前記共振周波数の実質的に近くに同調させるための手段を備える、
請求項24に記載のシステム。 - 前記第1の電力消費状態を発生させることが、前記抽出されたエネルギーを動作電流の消費または蓄積のために受信デバイスに導くための手段を備え、
前記第2の電力消費状態を発生させることが、前記抽出されたエネルギーを、前記動作電流とは実質的に異なる電流をもつダミー負荷に導くための手段を備える、
請求項24に記載のシステム。 - 第1の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを可能にすることと、
第2の送信信号状態をシグナリングするために、前記送信アンテナが前記共振周波数を発生させることを不可能にすることと
によって、前記送信アンテナから前記受信アンテナにシグナリングするための手段をさらに備える、請求項24に記載のシステム。
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