JPH01138287U - - Google Patents
Info
- Publication number
- JPH01138287U JPH01138287U JP3151388U JP3151388U JPH01138287U JP H01138287 U JPH01138287 U JP H01138287U JP 3151388 U JP3151388 U JP 3151388U JP 3151388 U JP3151388 U JP 3151388U JP H01138287 U JPH01138287 U JP H01138287U
- Authority
- JP
- Japan
- Prior art keywords
- switch means
- radio receiver
- signal
- tape recorder
- section
- 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
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Noise Elimination (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Description
第１図は、本考案の一実施例のノイズリダクシ
ヨン回路を含むラジオ受信機付きテープレコーダ
の回路構成図である。
符号の説明、１……ラジオ受信機付きテープレ
コーダ、２……ラジオ受信機、４……フロントエ
ンド回路、５……ＩＦアンプ（増幅部）、６……
ＭＰＸアンプ（増幅部）、７……ＮＲスイツチ（
第１のスイツチ手段）、８……ＮＲスイツチ（第
２のスイツチ手段）、９，１０，１１……ＮＲス
イツチ、１３……バンドパスフイルタ、１４……
半固定ボリユーム、１５……増幅器、１６……テ
ープ再生ヘツド、１７……イコライザアンプ（減
算手段）、１８……出力増幅器、２０，２１……
切換スイツチ。
FIG. 1 is a circuit diagram of a tape recorder with a radio receiver including a noise reduction circuit according to an embodiment of the present invention. Explanation of symbols, 1...Tape recorder with radio receiver, 2...Radio receiver, 4...Front end circuit, 5...IF amplifier (amplification section), 6...
MPX amplifier (amplification section), 7...NR switch (
(first switch means), 8... NR switch (second switch means), 9, 10, 11... NR switch, 13... band pass filter, 14...
Semi-fixed volume, 15...Amplifier, 16...Tape playback head, 17...Equalizer amplifier (subtraction means), 18...Output amplifier, 20, 21...
Changeover switch.
Claims (1)
ジオ受信機の増幅部への受信信号の入力を停止す
る第１のスイツチ手段と、その第１のスイツチ手
段と連動して切り換わり上記増幅部の出力信号を
テープレコーダの再生部へ入力する第２のスイツ
チ手段と、その増幅部からの出力信号をテープの
再生信号から減算する減算手段とを具備したこと
を特徴とするラジオ受信機付きテープレコーダの
ノイズリダクシヨン回路。 In a tape recorder with a radio receiver, a first switch means for stopping input of a received signal to an amplifying section of the radio receiver, and a first switch means for switching in conjunction with the first switch means to input an output signal of the amplifying section to the tape recorder. Noise reduction for a tape recorder with a radio receiver, characterized in that it is equipped with a second switch means for inputting the signal to the playback section of the recorder, and a subtraction means for subtracting the output signal from the amplification section from the playback signal of the tape. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3151388U JPH01138287U (en) | 1988-03-09 | 1988-03-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3151388U JPH01138287U (en) | 1988-03-09 | 1988-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01138287U true JPH01138287U (en) | 1989-09-21 |
Family
ID=31257416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3151388U Pending JPH01138287U (en) | 1988-03-09 | 1988-03-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138287U (en) |
-
1988
- 1988-03-09 JP JP3151388U patent/JPH01138287U/ja active Pending
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