JPS6082760U - Sensitivity switching device for automatic music selection device - Google Patents
Sensitivity switching device for automatic music selection deviceInfo
- Publication number
- JPS6082760U JPS6082760U JP17704083U JP17704083U JPS6082760U JP S6082760 U JPS6082760 U JP S6082760U JP 17704083 U JP17704083 U JP 17704083U JP 17704083 U JP17704083 U JP 17704083U JP S6082760 U JPS6082760 U JP S6082760U
- Authority
- JP
- Japan
- Prior art keywords
- music selection
- sensitivity switching
- automatic music
- selection device
- sensitivity
- 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
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すブロック図、第２図は
無音溝部分を光学的に検出する方法を示す断面図、及び
第３図イ乃至二は本考案の説明に供する為の波形図であ
る。
主な図番の説明、２・・・・・・変換回路、３・・・・
・・増幅回路、４・・・・・・波形整形回路、５・・・
・・・サイズ検出回路、６・・・・・・ミューティング
回路、６ａ・・・・・・発振器、８・・・・・・パルス
検出回路、９・・・・・・アンド回路、１０・・・・・
・カウンタ、１１・・・・・・パルス数判定回路、１２
・・・・・・増幅率切換え回路。Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a sectional view showing a method for optically detecting a silent groove portion, and Figs. 3 A to 2 are diagrams for explaining the present invention. FIG. Explanation of main drawing numbers, 2... Conversion circuit, 3...
...Amplification circuit, 4...Waveform shaping circuit, 5...
... Size detection circuit, 6 ... Muting circuit, 6a ... Oscillator, 8 ... Pulse detection circuit, 9 ... AND circuit, 10.・・・・・・
・Counter, 11...Pulse number judgment circuit, 12
・・・・・・Amplification factor switching circuit.
Claims (1)
自動選曲を行う様にしたレコードプレーヤにおける自動
選曲装置の感度切換え装置であって、前記レコード盤の
導入溝以外の無音溝部分からの反射光の検出時に発生す
る信号の幅を検出する幅検出手段と、該幅検出手段の出
力信号に応じて、前記自動選曲装置の感度を切換える感
度切換え手段とを備える自動選曲装置の感度切換え装置
。A sensitivity switching device for an automatic song selection device in a record player that projects light onto the surface of a record and detects the reflected light to automatically select songs, the device comprising: Sensitivity switching of an automatic music selection device, comprising: width detection means for detecting the width of a signal generated when detecting reflected light; and sensitivity switching means for switching the sensitivity of the automatic music selection device according to the output signal of the width detection means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17704083U JPS6082760U (en) | 1983-11-15 | 1983-11-15 | Sensitivity switching device for automatic music selection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17704083U JPS6082760U (en) | 1983-11-15 | 1983-11-15 | Sensitivity switching device for automatic music selection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6082760U true JPS6082760U (en) | 1985-06-07 |
Family
ID=30384733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17704083U Pending JPS6082760U (en) | 1983-11-15 | 1983-11-15 | Sensitivity switching device for automatic music selection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082760U (en) |
-
1983
- 1983-11-15 JP JP17704083U patent/JPS6082760U/en active Pending
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