JPS5830962U - Disc record size detection device - Google Patents
Disc record size detection deviceInfo
- Publication number
- JPS5830962U JPS5830962U JP12557281U JP12557281U JPS5830962U JP S5830962 U JPS5830962 U JP S5830962U JP 12557281 U JP12557281 U JP 12557281U JP 12557281 U JP12557281 U JP 12557281U JP S5830962 U JPS5830962 U JP S5830962U
- Authority
- JP
- Japan
- Prior art keywords
- disc record
- tone arm
- detection device
- record
- position sensor
- 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ａは従来のセンサカートリッジの作用を示す図、
ｂ図はセンサカートリッジの受光素子出力の状態を示す
図、第２図および第３図はこの考案に係るディスクレコ
ードサイズ検出装置の要部を示す側面図および下面図、
第４図は第２図で用いる検出回路の概略を示す構成図、
第５図ｉ第４図の検出回路の具体例を示す回路結線図で
ある。
２４・・・・・・センサカートリッジ、２５・・・・・
・シャッタ、２６．２７・・・・・・センサ、２９・・
・・・・アンド回路、３０・・・・・・オア回路。FIG. 1a is a diagram showing the operation of a conventional sensor cartridge;
Figure b is a diagram showing the state of the output of the light receiving element of the sensor cartridge, Figures 2 and 3 are side and bottom views showing the main parts of the disc record size detection device according to this invention,
FIG. 4 is a block diagram schematically showing the detection circuit used in FIG. 2;
FIG. 5i is a circuit connection diagram showing a specific example of the detection circuit of FIG. 4. 24...Sensor cartridge, 25...
・Shutter, 26.27...Sensor, 29...
...AND circuit, 30...OR circuit.
Claims (1)
分を検出する発光素子および受光素子でなるレコードセ
ンサと、上記トーンアームの回動軸に固定され当該トー
ンアームの回動に連動する検出子あるいは位置センサと
、上記トーンアームに設けられるピックアップ機構の再
生針が各サイズのディスクレコード最外周部上にあるよ
うに設けられる位置センサあるいは検出子と、上記レコ
ードセンサの出力と位置センサの出力との論理積をとっ
てディスクレコードサイズに対応した検出パルスを発生
する検出回路とを具備してなることを特徴としたディス
クレコードサイズ検出装置。a record sensor that is attached to the tone arm and consists of a light emitting element and a light receiving element that detects a non-signal portion of a disc record, and a detector or position sensor that is fixed to the rotation axis of the tone arm and is linked to the rotation of the tone arm. , a position sensor or a detector provided so that the playback needle of the pickup mechanism provided on the tone arm is located on the outermost circumference of the disc record of each size, and the logical product of the output of the record sensor and the output of the position sensor. 1. A disc record size detection device comprising: a detection circuit that generates a detection pulse corresponding to the disc record size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12557281U JPS5830962U (en) | 1981-08-25 | 1981-08-25 | Disc record size detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12557281U JPS5830962U (en) | 1981-08-25 | 1981-08-25 | Disc record size detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5830962U true JPS5830962U (en) | 1983-02-28 |
Family
ID=29919413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12557281U Pending JPS5830962U (en) | 1981-08-25 | 1981-08-25 | Disc record size detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0224771U (en) * | 1988-08-03 | 1990-02-19 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564482A (en) * | 1979-06-26 | 1981-01-17 | Mitsubishi Electric Corp | Thermal head |
-
1981
- 1981-08-25 JP JP12557281U patent/JPS5830962U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564482A (en) * | 1979-06-26 | 1981-01-17 | Mitsubishi Electric Corp | Thermal head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0224771U (en) * | 1988-08-03 | 1990-02-19 |
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