JPH0449318U - - Google Patents
Info
- Publication number
- JPH0449318U JPH0449318U JP8916990U JP8916990U JPH0449318U JP H0449318 U JPH0449318 U JP H0449318U JP 8916990 U JP8916990 U JP 8916990U JP 8916990 U JP8916990 U JP 8916990U JP H0449318 U JPH0449318 U JP H0449318U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- recording medium
- read
- signal
- write
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図はこの考案に係る光デイスクプレーヤの
実施例を示すブロツク図である。
主な符号の説明、１……光デイスク、２……モ
ータ及びサーボ回路、３……光ピツクアツプ、４
……書込信号、５……Ａ／Ｄコンバータ、６……
エンコーダ、７……ＲＦアンプ及びピツクアツプ
ドライバ、８……デコーダ、９……再生信号、１
０……Ｄ／Ａコンバータ、１１……スイツチ、１
２……マイクロコンピユータ、１３……書込可否
識別手段。
FIG. 1 is a block diagram showing an embodiment of an optical disc player according to this invention. Explanation of main symbols, 1... Optical disk, 2... Motor and servo circuit, 3... Optical pickup, 4
...Write signal, 5...A/D converter, 6...
Encoder, 7...RF amplifier and pickup driver, 8...Decoder, 9...Reproduction signal, 1
0...D/A converter, 11...Switch, 1
2...Microcomputer, 13...Writability identification means.
Claims (1)
入力する入力回路と、記録媒体上に記録されたデ
ータを読み出す読出回路と、前記読出回路が読み
出した再生信号を外部機器に導くための出力回路
と、前記読出回路の再生信号若しくは入力回路の
書込信号を前記出力回路に選択的に導くスイツチ
手段と、記録媒体にデータを書き込むことができ
るか否かを識別する書込可否識別手段とを設け、
前記書込可否識別手段の識別結果に基づき前記ス
イツチ手段を制御するように構成したことを特徴
とする光デイスクプレーヤ。 An input circuit that inputs a write signal for writing data to a recording medium, a read circuit that reads data recorded on the recording medium, and an output circuit that guides the playback signal read by the read circuit to an external device. , further comprising a switch means for selectively guiding the reproduction signal of the readout circuit or the write signal of the input circuit to the output circuit, and a write permission identification means for identifying whether or not data can be written to the recording medium. ,
An optical disc player characterized in that the switch means is controlled based on the identification result of the write permission/impossibility identification means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8916990U JPH0449318U (en) | 1990-08-28 | 1990-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8916990U JPH0449318U (en) | 1990-08-28 | 1990-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0449318U true JPH0449318U (en) | 1992-04-27 |
Family
ID=31822966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8916990U Pending JPH0449318U (en) | 1990-08-28 | 1990-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449318U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS632170A (en) * | 1986-06-20 | 1988-01-07 | Matsushita Electric Ind Co Ltd | Information recording and reproducing device |
-
1990
- 1990-08-28 JP JP8916990U patent/JPH0449318U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS632170A (en) * | 1986-06-20 | 1988-01-07 | Matsushita Electric Ind Co Ltd | Information recording and reproducing device |
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