JPS62147968U - - Google Patents
Info
- Publication number
- JPS62147968U JPS62147968U JP3589186U JP3589186U JPS62147968U JP S62147968 U JPS62147968 U JP S62147968U JP 3589186 U JP3589186 U JP 3589186U JP 3589186 U JP3589186 U JP 3589186U JP S62147968 U JPS62147968 U JP S62147968U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- sif signal
- curve
- output
- 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 4
- 230000010354 integration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は実施例の回路ブロツク図、第２図は特
性図である。
４…ＦＭ検波回路、６…積分回路、Ｃ３…直流
カツトコンデンサ、７…電圧比較回路、１０…Ｓ
カーブ、１０ａ，１０ｂ…直線部分。
FIG. 1 is a circuit block diagram of the embodiment, and FIG. 2 is a characteristic diagram. 4... FM detection circuit, 6... Integrating circuit, C 3 ... DC cut capacitor, 7... Voltage comparison circuit, 10... S
Curve, 10a, 10b...straight line part.
Claims (1)
である第２ＳＩＦ信号に対して、Ｓカーブの中心
周波数ｆ０が前記ｆ１，ｆ２に対してｆ１＜ｆ０
＜ｆ２なる関係を有するとともに、前記ｆ１，ｆ
２が前記Ｓカーブの直線部分に位置する様設定さ
れたＦＭ検波回路と、前記ＦＭ検波回路出力を積
分する積分回路と、前記ＦＭ検波回路出力の直流
カツト手段と、前記積分回路出力を入力とする電
圧比較回路とよりなるＳＩＦ信号判別回路。 A first SIF signal whose center frequency is f 1 and f 2
For the second SIF signal, the center frequency f 0 of the S curve is f 1 < f 0 with respect to f 1 and f 2 .
<f 2 and the above f 1 , f
an FM detection circuit configured such that 2 is located on a straight line portion of the S curve; an integration circuit that integrates the output of the FM detection circuit; a DC cut means for the output of the FM detection circuit; An SIF signal discrimination circuit consisting of a voltage comparison circuit and a voltage comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3589186U JPS62147968U (en) | 1986-03-12 | 1986-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3589186U JPS62147968U (en) | 1986-03-12 | 1986-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147968U true JPS62147968U (en) | 1987-09-18 |
Family
ID=30845792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3589186U Pending JPS62147968U (en) | 1986-03-12 | 1986-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147968U (en) |
-
1986
- 1986-03-12 JP JP3589186U patent/JPS62147968U/ja active Pending