KR100671093B1 - 복조기 회로 - Google Patents
복조기 회로 Download PDFInfo
- Publication number
- KR100671093B1 KR100671093B1 KR1020007010560A KR20007010560A KR100671093B1 KR 100671093 B1 KR100671093 B1 KR 100671093B1 KR 1020007010560 A KR1020007010560 A KR 1020007010560A KR 20007010560 A KR20007010560 A KR 20007010560A KR 100671093 B1 KR100671093 B1 KR 100671093B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- gyrator
- input
- frequency modulated
- multiplier
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/22—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of active elements with more than two electrodes to which two signals are applied derived from the signal to be demodulated and having a phase difference related to the frequency deviation, e.g. phase detector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
- H03D3/20—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements producing pulses whose amplitude or duration depends on phase difference
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
- H03D3/247—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop using a controlled phase shifter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Amplifiers (AREA)
Abstract
Description
주파수 변조된 입력 신호를 수신하기 위한 입력;
변조된 입력 신호를 수신하도록 접속되고, 입력 신호에 대하여 지연되고 위상-시프트되는 자이레이터 출력 신호를 발생시키도록 동작할 수 있는 자이레이터; 및
입력 신호 및 자이레이터 출력 신호를 수신하도록 접속되고, 이러한 수신 신호의 곱과 등가인 출력 신호를 발생시키도록 동작할 수 있는 승산기를 포함한다.
Claims (9)
- 삭제
- 주파수 변조 신호를 복조하기 위한 복조기 회로로서:주파수 변조 입력 신호를 수신하는 입력;변조된 입력 신호를 수신하도록 접속되며, 상기 입력 신호에 대하여 지연되고 위상-시프트된 자이레이터 출력 신호를 발생시키도록 동작될 수 있는 자이레이터; 및입력 신호 및 자이레이터 출력 신호를 수신하도록 접속되며, 이러한 수신 신호의 곱과 등가인 출력 신호를 발생시키도록 동작될 수 있는 승산기를 포함하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 2항에 있어서,상기 자이레이터는 저항성 소자와 용량성 소자를 통해 입력 신호를 수신하도록 접속되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 2항에 있어서,상기 입력 단자는 자이레이터의 입력에 접속되고, 상호컨덕턴스 소자, 저항성 소자 및 용량성 소자는 상기 입력 단자 및 제 2 입력 단자 사이에 서로 병렬로 접속되며, 상기 자이레이터 출력은 승산기, 및 자이레이터 출력과 제 2의 입력 단자 접지 사이에 접속된 용량성 소자에 접속되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 4항에 있어서,상기 제 2 입력 단자는 접지에 접속되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 3항 또는 제 4항에 있어서,상기 용량성 소자는 커패시터 장치에 의해 제공되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 3항 또는 제 4항에 있어서,상기 용량성 소자는 상기 자이레이터의 입력 커패시턴스에 의해 제공되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 제 2항 내지 5항 중 어느 한 항에 있어서,상기 승산기는 배타적 논리합 게이트 또는 NAND 게이트에 의해 제공되는 것을 특징으로 하는 주파수 변조 신호를 복조하기 위한 복조기 회로.
- 삭제
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9806206A GB2335810B (en) | 1998-03-24 | 1998-03-24 | Demodulator circuits |
GB9806206.0 | 1998-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010034638A KR20010034638A (ko) | 2001-04-25 |
KR100671093B1 true KR100671093B1 (ko) | 2007-01-17 |
Family
ID=10829098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007010560A KR100671093B1 (ko) | 1998-03-24 | 1999-03-19 | 복조기 회로 |
Country Status (14)
Country | Link |
---|---|
US (1) | US6335659B1 (ko) |
EP (1) | EP1064720B1 (ko) |
JP (1) | JP4260367B2 (ko) |
KR (1) | KR100671093B1 (ko) |
CN (1) | CN1294779A (ko) |
AT (1) | ATE212766T1 (ko) |
AU (1) | AU752635B2 (ko) |
BR (1) | BR9909046A (ko) |
DE (1) | DE69900844D1 (ko) |
EE (1) | EE200000556A (ko) |
ES (1) | ES2168008T3 (ko) |
GB (1) | GB2335810B (ko) |
HK (1) | HK1032159A1 (ko) |
WO (1) | WO1999049570A1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19958096B4 (de) * | 1999-12-02 | 2012-04-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Verfahren zum Entwerfen einer Filterschaltung |
US6404308B1 (en) * | 1999-12-23 | 2002-06-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Phase-compensated impedance converter |
GB0200094D0 (en) * | 2002-01-04 | 2002-02-20 | Koninkl Philips Electronics Nv | Balanced gyrator and devices including the balanced gyrator |
CN104185175A (zh) * | 2014-07-29 | 2014-12-03 | 捷开通讯科技(上海)有限公司 | 电子设备之间信息自动转发的系统与方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL169807C (nl) * | 1973-07-23 | 1982-08-16 | Philips Nv | Inrichting met een gyrator-resonantiekring. |
JPS5233460A (en) * | 1975-09-10 | 1977-03-14 | Sony Corp | Fm demodulator |
GB2139681B (en) | 1983-03-31 | 1986-06-11 | Hall And Company Limited G | Roller blinds |
US5372475A (en) * | 1990-08-10 | 1994-12-13 | Nippondenso Co., Ltd. | Fuel pump |
JP2707476B2 (ja) * | 1991-12-27 | 1998-01-28 | 東光株式会社 | Fm検波回路 |
US5371475A (en) * | 1993-06-03 | 1994-12-06 | Northern Telecom Limited | Low noise oscillators and tracking filters |
JPH07245546A (ja) * | 1994-03-03 | 1995-09-19 | Nippon Motorola Ltd | アクティブローパスフィルタ |
JP2825076B2 (ja) * | 1995-12-08 | 1998-11-18 | 日本電気株式会社 | ジャイレータ回路を用いた復調回路 |
JP3003600B2 (ja) * | 1996-11-20 | 2000-01-31 | 日本電気株式会社 | Fm復調回路 |
-
1998
- 1998-03-24 GB GB9806206A patent/GB2335810B/en not_active Revoked
-
1999
- 1999-03-19 DE DE69900844T patent/DE69900844D1/de not_active Expired - Lifetime
- 1999-03-19 AT AT99913280T patent/ATE212766T1/de not_active IP Right Cessation
- 1999-03-19 WO PCT/EP1999/001847 patent/WO1999049570A1/en active IP Right Grant
- 1999-03-19 BR BR9909046-5A patent/BR9909046A/pt not_active IP Right Cessation
- 1999-03-19 JP JP2000538429A patent/JP4260367B2/ja not_active Expired - Fee Related
- 1999-03-19 AU AU31465/99A patent/AU752635B2/en not_active Ceased
- 1999-03-19 KR KR1020007010560A patent/KR100671093B1/ko not_active IP Right Cessation
- 1999-03-19 CN CN99804412A patent/CN1294779A/zh active Pending
- 1999-03-19 EP EP99913280A patent/EP1064720B1/en not_active Expired - Lifetime
- 1999-03-19 EE EEP200000556A patent/EE200000556A/xx unknown
- 1999-03-19 ES ES99913280T patent/ES2168008T3/es not_active Expired - Lifetime
- 1999-03-23 US US09/274,327 patent/US6335659B1/en not_active Expired - Lifetime
-
2001
- 2001-04-19 HK HK01102786A patent/HK1032159A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2335810A (en) | 1999-09-29 |
GB9806206D0 (en) | 1998-05-20 |
EP1064720B1 (en) | 2002-01-30 |
JP2002508614A (ja) | 2002-03-19 |
ES2168008T3 (es) | 2002-05-16 |
HK1032159A1 (en) | 2001-07-06 |
CN1294779A (zh) | 2001-05-09 |
GB2335810B (en) | 2001-12-12 |
EP1064720A1 (en) | 2001-01-03 |
DE69900844D1 (de) | 2002-03-14 |
AU752635B2 (en) | 2002-09-26 |
BR9909046A (pt) | 2000-12-05 |
KR20010034638A (ko) | 2001-04-25 |
WO1999049570A1 (en) | 1999-09-30 |
ATE212766T1 (de) | 2002-02-15 |
AU3146599A (en) | 1999-10-18 |
US6335659B1 (en) | 2002-01-01 |
JP4260367B2 (ja) | 2009-04-30 |
EE200000556A (et) | 2002-04-15 |
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