KR840003935A - Fm 검파 회로 - Google Patents
Fm 검파 회로 Download PDFInfo
- Publication number
- KR840003935A KR840003935A KR1019830000799A KR830000799A KR840003935A KR 840003935 A KR840003935 A KR 840003935A KR 1019830000799 A KR1019830000799 A KR 1019830000799A KR 830000799 A KR830000799 A KR 830000799A KR 840003935 A KR840003935 A KR 840003935A
- Authority
- KR
- South Korea
- Prior art keywords
- secondary winding
- circuit
- winding
- detection circuit
- primary
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
-
- 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
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도 및 제3도는 본 발명에 관한 FM 검파 회로를 나타대는 도시도.
Claims (2)
- 4분 검파 방식의 FM 검파 회로가, 중간 주파 증폭단으로부터의 리미터 출력을 위상 시프트하여 승산 회로에 공급하는 이상 회로와 승산 회로를 포함하고, 이상 회로가 1차 권선과 1차 권선과 상호 유도 작용을 수반하여 결합된 2차 권선으로된 검파 코일과 2차 권선에 병렬로 접속된 동조하도록되어 1차권선의 극성을 2차 권선의 극성과 동일방향 혹은 역방항으로 하는 것에 의하여 FM 검파회로의 특성을 S자 곡선 혹은 역 S자 곡선으로 하는 것을 특징으로 하는 FM 검파 회로.
- 제1항에서. 이상 회로가 1차 권선과 2차 권선과 동조 콘덴서를 포함하고, 1차 권선의 일단 중간 주파 증폭단의 출력단에 접속되고, 1차 권선의 타단이 2차 권선의 일단에 접속되며, 2차 권선에 동조 콘덴서가병렬 접속되고, 또 2차권선과 이2차권선의 접속점이 기준 전압원에 접속되어 2차권선의 타단이 이승산화로 접속되어 있는 것을 특징으로 하는 FM 검파 회로.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP72248 | 1982-04-28 | ||
JP57072248A JPS58212205A (ja) | 1982-04-28 | 1982-04-28 | Fm検波回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840003935A true KR840003935A (ko) | 1984-10-04 |
KR900007029B1 KR900007029B1 (ko) | 1990-09-27 |
Family
ID=13483801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019830000799A KR900007029B1 (ko) | 1982-04-28 | 1983-02-26 | Fm 검파 회로 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS58212205A (ko) |
KR (1) | KR900007029B1 (ko) |
GB (1) | GB2122440B (ko) |
HK (1) | HK55487A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100709767B1 (ko) * | 2004-07-20 | 2007-04-19 | 알프스 덴키 가부시키가이샤 | Fsk검파회로 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5155786A (en) * | 1991-04-29 | 1992-10-13 | International Business Machines Corporation | Apparatus and a method for an optical fiber interface |
GB2263369A (en) * | 1992-01-20 | 1993-07-21 | Racal Res Ltd | Frequency discriminator |
EP0701750B1 (en) * | 1994-04-04 | 2002-10-09 | Motorola, Inc. | A wide bandwidth discriminator for use in a radio receiver |
JP3003600B2 (ja) * | 1996-11-20 | 2000-01-31 | 日本電気株式会社 | Fm復調回路 |
ES2142754B1 (es) * | 1998-04-17 | 2000-11-16 | Iglesias Angel Sa | Demodulador para señales moduladas en frecuencia de alta ganancia de demodulacion. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE711338A (ko) * | 1967-03-02 | 1968-07-01 | ||
JPS5846884B2 (ja) * | 1975-01-16 | 1983-10-19 | ソニー株式会社 | シユウハスウベンベツカイロ |
JPS5928084B2 (ja) * | 1975-04-24 | 1984-07-10 | ソニー株式会社 | 復調回路 |
JPS5328361A (en) * | 1976-08-27 | 1978-03-16 | Sony Corp | Quadratur e phase detection circuit |
-
1982
- 1982-04-28 JP JP57072248A patent/JPS58212205A/ja active Granted
-
1983
- 1983-02-26 KR KR1019830000799A patent/KR900007029B1/ko not_active IP Right Cessation
- 1983-04-18 GB GB08310400A patent/GB2122440B/en not_active Expired
-
1987
- 1987-07-30 HK HK554/87A patent/HK55487A/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100709767B1 (ko) * | 2004-07-20 | 2007-04-19 | 알프스 덴키 가부시키가이샤 | Fsk검파회로 |
Also Published As
Publication number | Publication date |
---|---|
JPS6330807B2 (ko) | 1988-06-21 |
KR900007029B1 (ko) | 1990-09-27 |
HK55487A (en) | 1987-08-07 |
JPS58212205A (ja) | 1983-12-09 |
GB8310400D0 (en) | 1983-05-25 |
GB2122440B (en) | 1986-02-26 |
GB2122440A (en) | 1984-01-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19980901 Year of fee payment: 9 |
|
LAPS | Lapse due to unpaid annual fee |