JPS60169766U - signal detection circuit - Google Patents
signal detection circuitInfo
- Publication number
- JPS60169766U JPS60169766U JP5724684U JP5724684U JPS60169766U JP S60169766 U JPS60169766 U JP S60169766U JP 5724684 U JP5724684 U JP 5724684U JP 5724684 U JP5724684 U JP 5724684U JP S60169766 U JPS60169766 U JP S60169766U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- detection circuit
- signal detection
- attenuation
- pass filter
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の信号検出回路を示す回路図、第２図及び
第３図は本考案に係る信号検出回路の実施例を示し、第
２図は回路図、第３図は波形図である。
１：ローパスフィルター、２：減衰部、３：比較部、１
１：検出センサーたる受光素子、１ｏ：発光素子。Fig. 1 is a circuit diagram showing a conventional signal detection circuit, Figs. 2 and 3 show an embodiment of the signal detection circuit according to the present invention, Fig. 2 is a circuit diagram, and Fig. 3 is a waveform diagram. . 1: Low pass filter, 2: Attenuation section, 3: Comparison section, 1
1: Light-receiving element as a detection sensor, 1o: Light-emitting element.
Claims (1)
ための信号検出回路であって、検出センサーからの出力
信号中の直流成分を取り出し基準信号とするためのロー
パスフィルターと、検出センサーからの検出信号を所定
量減衰させるための減衰部と、上記ローパスフィルター
からの基準信号と上記減衰部からの減衰信号とを入力と
する比較部とを備えていることを特徴とする信号検出回
路。A signal detection circuit for detecting the presence or absence of a blank portion of a recording signal on a recording medium, which includes a low-pass filter for extracting a DC component in an output signal from a detection sensor and using it as a reference signal, and a detection signal from the detection sensor. 1. A signal detection circuit comprising: an attenuation section for attenuating a signal by a predetermined amount; and a comparison section that receives as input a reference signal from the low-pass filter and an attenuation signal from the attenuation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5724684U JPS60169766U (en) | 1984-04-20 | 1984-04-20 | signal detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5724684U JPS60169766U (en) | 1984-04-20 | 1984-04-20 | signal detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60169766U true JPS60169766U (en) | 1985-11-11 |
Family
ID=30581589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5724684U Pending JPS60169766U (en) | 1984-04-20 | 1984-04-20 | signal detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60169766U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5665364A (en) * | 1979-10-31 | 1981-06-03 | Sony Corp | Detector for automatic music selection |
| JPS5635168B2 (en) * | 1973-03-01 | 1981-08-15 | ||
| JPS5888870A (en) * | 1981-11-23 | 1983-05-27 | Hiroyoshi Ogawa | Detecting circuit of record player of automatic music selection type |
-
1984
- 1984-04-20 JP JP5724684U patent/JPS60169766U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635168B2 (en) * | 1973-03-01 | 1981-08-15 | ||
| JPS5665364A (en) * | 1979-10-31 | 1981-06-03 | Sony Corp | Detector for automatic music selection |
| JPS5888870A (en) * | 1981-11-23 | 1983-05-27 | Hiroyoshi Ogawa | Detecting circuit of record player of automatic music selection type |
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