JPH0461920U - - Google Patents
Info
- Publication number
- JPH0461920U JPH0461920U JP10583290U JP10583290U JPH0461920U JP H0461920 U JPH0461920 U JP H0461920U JP 10583290 U JP10583290 U JP 10583290U JP 10583290 U JP10583290 U JP 10583290U JP H0461920 U JPH0461920 U JP H0461920U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- frequency modulated
- modulated wave
- wave signal
- limiter circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案のＦＭ検波回路の一実施例のブ
ロツク図、第２図は本考案のＦＭ検波回路の動作
説明用の信号の周波数配置図、第３図は本考案の
ＦＭ検波回路の動作説明用のＦＭ検波器の入出力
特性図、第４図は従来例回路のブロツク図である
。
１……アンテナ、２……チユーナ、３……映像
中間周波回路、４……音声中間周波回路、５，１
０……帯域通過濾波器、６，８……リミツタ、７
，１２……ＦＭ検波器、５，１０は帯域通過濾波
器、８，１１はリミツタ、９は増幅器。
Fig. 1 is a block diagram of an embodiment of the FM detection circuit of the present invention, Fig. 2 is a signal frequency allocation diagram for explaining the operation of the FM detection circuit of the present invention, and Fig. 3 is a diagram of the FM detection circuit of the present invention. FIG. 4 is an input/output characteristic diagram of an FM detector for explaining the operation, and is a block diagram of a conventional circuit. 1...Antenna, 2...Tuner, 3...Video intermediate frequency circuit, 4...Audio intermediate frequency circuit, 5,1
0... Bandpass filter, 6, 8... Limiter, 7
, 12...FM detector, 5 and 10 are band pass filters, 8 and 11 are limiters, and 9 is an amplifier.
Claims (1)
号をリミツタ回路に与える手段と、前記したリミ
ツタ回路の出力信号中からＦＭ検波の対象にされ
ている周波数被変調波信号がＮ逓倍（ただし、Ｎ
は２以上の自然数）されている状態の信号成分を
抽出する手段と、前記したＦＭ検波の対象にされ
ている周波数被変調波信号がＮ逓倍された信号成
分をＦＭ検波する手段とからなるＦＭ検波回路。 A means for providing a frequency modulated wave signal targeted for FM detection to a limiter circuit, and a means for supplying a frequency modulated wave signal targeted for FM detection from among the output signals of the limiter circuit described above is
is a natural number of 2 or more), and means for FM detecting a signal component obtained by multiplying the frequency modulated wave signal subjected to FM detection by N. Detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10583290U JPH0461920U (en) | 1990-10-08 | 1990-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10583290U JPH0461920U (en) | 1990-10-08 | 1990-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461920U true JPH0461920U (en) | 1992-05-27 |
Family
ID=31851675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10583290U Pending JPH0461920U (en) | 1990-10-08 | 1990-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461920U (en) |
-
1990
- 1990-10-08 JP JP10583290U patent/JPH0461920U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900017384A (en) | TV receiver | |
| SU976864A3 (en) | Amplitude-modulated stereophonic signal receiver | |
| JPS6258974U (en) | ||
| JPH0344924U (en) | ||
| JPS6040051Y2 (en) | TV audio multiplex signal demodulator | |
| JPS6133746Y2 (en) | ||
| JPH026671Y2 (en) | ||
| JPS6428017U (en) | ||
| JPH0295917U (en) | ||
| JPS6352356U (en) | ||
| JPS6359311B2 (en) | ||
| JPS54157018A (en) | Fm receiver | |
| JPS617140U (en) | FM receiver | |
| JPH03115423U (en) | ||
| JPS6221105Y2 (en) | ||
| JPH02137173U (en) | ||
| JPS63114573U (en) | ||
| JPH0247885U (en) | ||
| JPS6315683U (en) | ||
| JPS6014575U (en) | Audio detection circuit | |
| JPS6344582U (en) | ||
| JPS62158672U (en) | ||
| JPS6188326U (en) | ||
| JPS6217281U (en) | ||
| JPS58161361U (en) | video transmitter |