JP5279948B2 - アナログ−ディジタル変換器および方法,ならびにeegモニタリング・システム - Google Patents
アナログ−ディジタル変換器および方法,ならびにeegモニタリング・システム Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
- H03M3/478—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication
- H03M3/48—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting
- H03M3/486—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting by adapting the input gain
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/02—Delta modulation, i.e. one-bit differential modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M3/43—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/454—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
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Description
Claims (11)
- 並列構成にあるときに入力信号電圧によって充電され,かつ直列構成にあるときに放電されて出力信号電圧を送るように構成される少なくとも2つのキャパシタと,上記各構成において上記キャパシタ(複数)の上記充電および放電を制御する手段とを備え,入力端子に与えられる入力信号電圧を,上記入力信号電圧よりも大きい出力信号電圧に変圧する変圧器,
上記変圧器の下流に配置されており,与えられるバイアスによって動作点が制御される,入力信号に所定利得を適用する増幅器,
上記増幅器から出力される信号を積算する積分器,
上記積分器からの出力をディジタル化する比較器,
上記比較器からの出力が与えられる出力端子,および
上記比較器からの出力をフィードバック信号として上記増幅器の入力に戻すフィードバック・ループを備える,
アナログ−ディジタル変換器。 - EEGモニタリング・システムに用いられるものであることを特徴とする,
請求項1に記載のアナログ−ディジタル変換器。 - 上記変圧器はサンプリング・クロック発生器によって制御されることを特徴とする,請求項1に記載のアナログ−ディジタル変換器。
- 上記増幅器が単一の増幅半導体素子を備えていることを特徴とする,請求項1に記載のアナログ−ディジタル変換器。
- 上記増幅器が増幅素子としてバッファ・インバータを備えていることを特徴とする,請求項1に記載のアナログ−ディジタル変換器。
- アナログ信号をディジタル信号に変換する方法であって,
並列構成にあるときに入力信号電圧によって充電され,かつ直列構成にあるときに放電されて出力信号電圧を送るように構成される少なくとも2つのキャパシタと,上記各構成において上記キャパシタ(複数)の上記充電および放電を制御する手段を備える変圧器を用いて,入力信号電圧を上記入力信号電圧よりも大きい出力信号電圧に変圧するステップと,
上記出力信号電圧を,与えられるバイアスによって動作点が制御される増幅器を用いて増幅して増幅出力信号電圧を生成するステップと,
上記増幅出力信号電圧を積分器を用いて積算して積算増幅出力信号電圧を生成するステップと,
上記積算増幅出力信号電圧を比較器を用いてディジタル化してディジタル化積算増幅出力信号電圧を生成するステップと,
上記ディジタル化積算増幅出力信号電圧を上記出力信号電圧から減算し,上記増幅器に向かうディジタル出力ビットストリームを出力するステップを含む,
方法。 - EEGモニタリング・システムにおいて用いられる,
請求項6に記載の方法。 - 上記入力信号電圧をより高い出力信号電圧に変換するステップは,サンプリング・クロック発生器からの信号の第1のフェーズにおいて並列構成にある少なくとも2つのキャパシタを上記入力信号電圧の瞬時値に充電するステップと,上記サンプリング・クロック発生器からの信号の第2フェーズにおいて直列構成にある上記少なくとも2つのキャパシタを放電するステップを含み,これにより上記キャパシタ(複数)の結合放電電圧にキャパシタの数を乗算する,
請求項6に記載の方法。 - 上記増幅積算電圧をディジタル化するステップは,上記増幅積算電圧を所定電圧と比較するステップと,上記増幅積算電圧の値およびシステム・クロック発生器からの信号に応じた離散論理信号を生成するステップを含む,
請求項6に記載の方法。 - モニタされるべき人によって連続的に持ち運ばれるEEGモニタリング・システムであって,上記システムは,上記システムを持ち運ぶ人からの一または複数のEEG信号を測定するように構成される少なくとも一つの電極を備え,上記システムは上記EEG信号に基づいて上記EEG信号を解析して上記人における特定の生物学的発生現象を識別または予測するように構成される信号処理手段を備え,
上記システムは請求項1から5のいずれか一項に記載のアナログ−ディジタル変換器を備え,上記アナログ−ディジタル変換器が上記電極からのアナログEEG信号をディジタル信号に変換するように構成されていることを特徴とする,
EEGモニタリング・システム。 - 上記電極および上記アナログ−ディジタル変換器が,モニタされるべき上記人の皮膚を通して無線により電力供給を受けるように構成され,かつ上記皮膚を通して外部部分に向けて無線でディジタル化EEG信号を送信するようにさらに構成されている埋込可能部分に配置されている,
請求項10に記載のEEGモニタリング・システム。
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PCT/EP2009/055284 WO2010124738A1 (en) | 2009-04-30 | 2009-04-30 | Input converter for an eeg monitoring system, signal conversion method and monitoring system |
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US (1) | US8866661B2 (ja) |
EP (1) | EP2425639B1 (ja) |
JP (1) | JP5279948B2 (ja) |
KR (1) | KR101342855B1 (ja) |
CN (1) | CN102440006B (ja) |
AU (1) | AU2009345576B2 (ja) |
CA (1) | CA2759145C (ja) |
DK (1) | DK2425639T3 (ja) |
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AU2013380260B2 (en) | 2013-02-27 | 2016-09-29 | T&W Engineering A/S | Electrode and leakage current testing in an EEG monitor with an implantable part |
US20160213268A1 (en) * | 2013-09-09 | 2016-07-28 | Agency For Science, Technology And Research | Device for detecting a spike in one of a plurality of neural signals |
US10282875B2 (en) | 2015-12-11 | 2019-05-07 | International Business Machines Corporation | Graph-based analysis for bio-signal event sensing |
CN107137078A (zh) * | 2017-05-08 | 2017-09-08 | 京东方科技集团股份有限公司 | 脑电波检测装置及设备 |
US20190132683A1 (en) | 2017-10-31 | 2019-05-02 | Starkey Laboratories, Inc. | Hearing device including a sensor and a method of forming same |
EP3499914B1 (en) * | 2017-12-13 | 2020-10-21 | Oticon A/s | A hearing aid system |
KR102199878B1 (ko) * | 2019-01-10 | 2021-01-07 | 연세대학교 산학협력단 | 초정밀 고분해능 생체신호 측정장치 및 측정방법 |
KR102424344B1 (ko) * | 2020-09-04 | 2022-07-22 | 울산과학기술원 | 임피던스 부스팅하는 뇌전도 신호 증폭 장치 |
JP2022144245A (ja) * | 2021-03-18 | 2022-10-03 | キヤノン株式会社 | 光電変換装置、電子機器および基板 |
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CA2759145C (en) | 2015-07-07 |
AU2009345576A1 (en) | 2011-10-13 |
SG174873A1 (en) | 2011-11-28 |
CN102440006B (zh) | 2015-01-21 |
US8866661B2 (en) | 2014-10-21 |
JP2012525100A (ja) | 2012-10-18 |
KR101342855B1 (ko) | 2013-12-17 |
EP2425639B1 (en) | 2013-10-16 |
CN102440006A (zh) | 2012-05-02 |
US20120010522A1 (en) | 2012-01-12 |
KR20120014908A (ko) | 2012-02-20 |
WO2010124738A1 (en) | 2010-11-04 |
DK2425639T3 (da) | 2013-11-25 |
CA2759145A1 (en) | 2010-11-04 |
AU2009345576B2 (en) | 2013-05-30 |
EP2425639A1 (en) | 2012-03-07 |
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