JPS6219829U - - Google Patents
Info
- Publication number
- JPS6219829U JPS6219829U JP10924785U JP10924785U JPS6219829U JP S6219829 U JPS6219829 U JP S6219829U JP 10924785 U JP10924785 U JP 10924785U JP 10924785 U JP10924785 U JP 10924785U JP S6219829 U JPS6219829 U JP S6219829U
- Authority
- JP
- Japan
- Prior art keywords
- detection signal
- pulse noise
- level detection
- noise removal
- stereo
- 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 11
- 230000035945 sensitivity Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Noise Elimination (AREA)
Description
第１図は、本考案によるＦＭステレオ受信機の
一実施例を示すブロツク図、第２図は、第１図に
示されたパルス性雑音除去回路５ｂの例を示すブ
ロツク図、第３図は第２図に示されたノイズ検出
回路５５及び感度設定回路６０ｂの例を示すブロ
ツク図、第４図は、本考案のＦＭステレオ受信機
の動作を説明する為の図、第５図は、従来のＦＭ
ステレオ受信機の例を示すブロツク図、第６図は
、第５図に示されたパルス性雑音除去回路５ａの
例を示すブロツク図、第７図は、第６図に示され
たノイズ検出回路５５及び感度設定回路６０ａの
例を示すブロツク図である。
主要部分の符号の説明、４……ＦＭ検波回路、
５ａ，５ｂ……パルス性雑音除去回路、７……ｆ
特コントロール回路、８……レベル検出回路、９
……レベル設定回路、５５……ノイズ検出回路、
６０ａ，６０ｂ……感度設定回路、６１……バツ
フアアンプ。
FIG. 1 is a block diagram showing an embodiment of the FM stereo receiver according to the present invention, FIG. 2 is a block diagram showing an example of the pulse noise removal circuit 5b shown in FIG. 1, and FIG. FIG. 2 is a block diagram showing an example of the noise detection circuit 55 and sensitivity setting circuit 60b, FIG. 4 is a diagram for explaining the operation of the FM stereo receiver of the present invention, and FIG. FM
FIG. 6 is a block diagram showing an example of a stereo receiver, FIG. 6 is a block diagram showing an example of the pulse noise removal circuit 5a shown in FIG. 5, and FIG. 7 is a block diagram showing an example of the noise detection circuit shown in FIG. 6. 55 and a sensitivity setting circuit 60a. Explanation of symbols of main parts, 4...FM detection circuit,
5a, 5b...Pulse noise removal circuit, 7...f
Special control circuit, 8...Level detection circuit, 9
... Level setting circuit, 55 ... Noise detection circuit,
60a, 60b...sensitivity setting circuit, 61...buffer amplifier.
Claims (1)
度に対応したレベルのレベル検出信号を出力する
受信レベル検出手段と、ＦＭ検波信号に含まれる
パルス性ノイズを抑制するパルス性雑音除去手段
と、前記パルス性雑音除去手段の出力を前記レベ
ル検出信号に応じた周波数レスポンスでステレオ
復調するＦＭステレオ復調手段とを有するＦＭス
テレオ受信機であつて、前記パルス性雑音除去手
段のノイズ検出感度が前記レベル検出信号に応じ
て変化することを特徴とするＦＭステレオ受信機
。 a reception level detection means for outputting a level detection signal at a level corresponding to the reception electric field strength when the reception electric field strength is below a predetermined value; a pulse noise removal means for suppressing pulse noise contained in the FM detection signal; FM stereo demodulation means for stereo demodulating the output of the pulse noise removal means with a frequency response according to the level detection signal, wherein the noise detection sensitivity of the pulse noise removal means is equal to the level detection signal. An FM stereo receiver characterized by changing depending on the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924785U JPS6219829U (en) | 1985-07-17 | 1985-07-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924785U JPS6219829U (en) | 1985-07-17 | 1985-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6219829U true JPS6219829U (en) | 1987-02-05 |
Family
ID=30987172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10924785U Pending JPS6219829U (en) | 1985-07-17 | 1985-07-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6449573U (en) * | 1987-09-21 | 1989-03-28 |
-
1985
- 1985-07-17 JP JP10924785U patent/JPS6219829U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6449573U (en) * | 1987-09-21 | 1989-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS621441U (en) | ||
| JPS6219829U (en) | ||
| JPS61146037U (en) | ||
| JPS6454432U (en) | ||
| JPS62155532U (en) | ||
| JPS6454442U (en) | ||
| JPS61179852U (en) | ||
| JPS6190347U (en) | ||
| JPH0353033U (en) | ||
| JPH0277925U (en) | ||
| JPH0293845U (en) | ||
| JPS62109579U (en) | ||
| JPS6085430U (en) | fm radio receiver | |
| JPS60160639U (en) | Radio receiver switching circuit | |
| JPS61131194U (en) | ||
| JPH0392835U (en) | ||
| JPS5988956U (en) | radio receiver | |
| JPS58135142U (en) | FM receiver | |
| JPH01132184U (en) | ||
| JPH0177039U (en) | ||
| JPS61206334U (en) | ||
| JPH0275841U (en) | ||
| JPS6381542U (en) | ||
| JPS61195646U (en) | ||
| JPS60167447U (en) | broadcast receiver |