JP3860795B2 - ローレベルとハイレベルとの間の振幅の交互変化によって(ask)変調される電圧を復調するための回路配置 - Google Patents
ローレベルとハイレベルとの間の振幅の交互変化によって(ask)変調される電圧を復調するための回路配置 Download PDFInfo
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- JP3860795B2 JP3860795B2 JP2002580477A JP2002580477A JP3860795B2 JP 3860795 B2 JP3860795 B2 JP 3860795B2 JP 2002580477 A JP2002580477 A JP 2002580477A JP 2002580477 A JP2002580477 A JP 2002580477A JP 3860795 B2 JP3860795 B2 JP 3860795B2
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- Prior art keywords
- circuit
- charging
- voltage
- circuit arrangement
- arrangement according
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transceivers (AREA)
- Near-Field Transmission Systems (AREA)
Description
V2 第2の入力ノード
C1 キャパシタ
C2 キャパシタ
I1 電流ソース
I2 電流ソース
D1 整流回路
D2 整流回路
Y 出力ノード
S1 分断デバイス(スイッチ)
Claims (7)
- ローレベルとハイレベルとの間の振幅の交互変化によって(ASK)変調された電圧を復調するための回路配置であって、
高周波数入力(LB、LA)の下流にある整流回路(D1、D2;N4、N5)と、
該整流回路(D1、D2;N4、N5)の出力(Y)と並列に接続される第1の充電回路(C1,il;C1、P1)および第2の充電回路(C2、i2;C2、P0)であって、各回路は、充電電圧(V1、V2)を生成する、第1の充電回路(C1,il;C1、P1)および第2の充電回路((C2、i2;C2、P0)と、
該充電電圧(V1、V2)と該整流回路(D1、D2;N4、N5)に対する入力電圧(UHF)との間に所定の割合が存在するときに、該充電電圧(V1、V2)を分断する分断デバイス(S1;N24、N25)と、
該充電電圧(V1、V2)の該割合から変調レベルを確かめるエバリュエーション回路と
を有する、回路配置。 - 前記充電回路は、フローティング電流ミラー回路(P1;P0)を有する、請求項1に記載の回路配置。
- 少なくとも1つの充電回路(C1、i1;C2、i2)の前記充電電圧(V1)は、変圧器(X%)を利用して変更される、請求項1に記載の回路配置。
- 前記第1および第2の充電回路(C1、i1;C2、i2)は、前記充電電圧(V1、V2)に対して所定の割合が存在するときに、ダイオード(D3;N11)を介して、互いに接続される、請求項1または2に記載の回路配置。
- 前記第2の充電回路は、該第2の充電回路によって提供される前記充電電圧(V2)を2つの異なる電圧(V2’、V2”)に変換する第1の分圧器(Y%)および第2の分圧器(Z%)を含む、請求項1〜4のいずれか一項に記載の回路配置。
- 前記第1および第2の充電回路は、異なる放電時間を有する、請求項1〜5のいずれか一項に記載の回路配置。
- 所定の程度の変調が識別された場合に充電電流増幅回路(P4、N1、N0、N2、P2)をオンにする転換装置(NA6)が設られている、請求項1〜6のいずれか一項に記載の回路配置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001116874 DE10116874A1 (de) | 2001-04-04 | 2001-04-04 | Schaltungsanordnung zur Demodulation in einer durch Wechsel der Amplitude zwischen einem niedrigen und einem hohen Pegel (ASK-) modulierten Spannung |
DE2001116747 DE10116747B4 (de) | 2001-04-04 | 2001-04-04 | Schaltungsanordnung zur Demodulation einer durch Wechsel der Amplitude zwischen einem niedrigen und einem hohen Pegel (ASK-) modulierten Spannung |
PCT/DE2002/000668 WO2002082634A2 (de) | 2001-04-04 | 2002-02-22 | Demoduliere für ämplitudenspungmodulierte (ask) signale |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004532564A JP2004532564A (ja) | 2004-10-21 |
JP3860795B2 true JP3860795B2 (ja) | 2006-12-20 |
Family
ID=26009003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002580477A Expired - Fee Related JP3860795B2 (ja) | 2001-04-04 | 2002-02-22 | ローレベルとハイレベルとの間の振幅の交互変化によって(ask)変調される電圧を復調するための回路配置 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6768373B2 (ja) |
EP (1) | EP1374514B1 (ja) |
JP (1) | JP3860795B2 (ja) |
KR (1) | KR100556222B1 (ja) |
CN (1) | CN1232085C (ja) |
AT (1) | ATE463111T1 (ja) |
BR (1) | BR0208564A (ja) |
DE (1) | DE50214314D1 (ja) |
MX (1) | MXPA03009074A (ja) |
RU (1) | RU2252492C1 (ja) |
TW (1) | TW569576B (ja) |
WO (1) | WO2002082634A2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7545892B2 (en) | 2002-08-22 | 2009-06-09 | Infineon Technologies Ag | Method and circuit for controlling the input signal for a contactless transponder |
WO2004021270A1 (de) * | 2002-08-22 | 2004-03-11 | Infineon Technologies Ag | Verfahren zum regeln des eingangssignals eines kontaktlos-transponders |
TWI228895B (en) * | 2002-10-10 | 2005-03-01 | Infineon Technologies Ag | Circuit arrangement for analog/digital conversion of a voltage which is (ASK) modulated by alternating the amplitude between a low and a high level |
FR2883434B1 (fr) * | 2005-03-21 | 2007-04-20 | Commissariat Energie Atomique | Methode et dispositif de demodulation a deux niveaux. |
KR20220041367A (ko) | 2020-09-25 | 2022-04-01 | 삼성전자주식회사 | 정전기 보호 회로, 및 이를 포함하는 반도체 장치 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2751148B1 (fr) * | 1996-07-12 | 1998-09-18 | Inside Technologies | Demodulateur d'un signal alternatif module en amplitude recu dans une bobine par induction electromagnetique |
ATE207224T1 (de) * | 1998-03-03 | 2001-11-15 | Infineon Technologies Ag | Datenträger zum kontaktlosen empfangen von amplitudenmodulierten signalen |
UA54622C2 (uk) * | 1998-11-05 | 2003-03-17 | Інфінеон Текнолоджіз Аг | Спосіб демодуляції імодульованої шляхом зміни амплітуди між низьким і високим рівнями напруги і демодулятор для його здійснення |
-
2002
- 2002-02-22 CN CNB028077997A patent/CN1232085C/zh not_active Expired - Fee Related
- 2002-02-22 WO PCT/DE2002/000668 patent/WO2002082634A2/de active Application Filing
- 2002-02-22 AT AT02714060T patent/ATE463111T1/de active
- 2002-02-22 BR BR0208564-0A patent/BR0208564A/pt not_active IP Right Cessation
- 2002-02-22 JP JP2002580477A patent/JP3860795B2/ja not_active Expired - Fee Related
- 2002-02-22 EP EP02714060A patent/EP1374514B1/de not_active Expired - Lifetime
- 2002-02-22 RU RU2003132169/09A patent/RU2252492C1/ru not_active IP Right Cessation
- 2002-02-22 DE DE50214314T patent/DE50214314D1/de not_active Expired - Lifetime
- 2002-02-22 MX MXPA03009074A patent/MXPA03009074A/es active IP Right Grant
- 2002-02-22 KR KR1020037012809A patent/KR100556222B1/ko not_active IP Right Cessation
- 2002-03-06 TW TW091104119A patent/TW569576B/zh not_active IP Right Cessation
-
2003
- 2003-10-06 US US10/680,384 patent/US6768373B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE463111T1 (de) | 2010-04-15 |
CN1232085C (zh) | 2005-12-14 |
US6768373B2 (en) | 2004-07-27 |
US20040066227A1 (en) | 2004-04-08 |
JP2004532564A (ja) | 2004-10-21 |
BR0208564A (pt) | 2004-03-30 |
CN1500332A (zh) | 2004-05-26 |
MXPA03009074A (es) | 2004-02-27 |
EP1374514A2 (de) | 2004-01-02 |
EP1374514B1 (de) | 2010-03-31 |
WO2002082634A3 (de) | 2003-04-10 |
TW569576B (en) | 2004-01-01 |
WO2002082634A2 (de) | 2002-10-17 |
KR100556222B1 (ko) | 2006-03-03 |
RU2252492C1 (ru) | 2005-05-20 |
DE50214314D1 (de) | 2010-05-12 |
KR20040008147A (ko) | 2004-01-28 |
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