JPH0352828U - - Google Patents
Info
- Publication number
- JPH0352828U JPH0352828U JP11184889U JP11184889U JPH0352828U JP H0352828 U JPH0352828 U JP H0352828U JP 11184889 U JP11184889 U JP 11184889U JP 11184889 U JP11184889 U JP 11184889U JP H0352828 U JPH0352828 U JP H0352828U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- output
- head
- accessing
- measuring device
- 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 8
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
第１図は本考案実施例の構成を示すブロツク図
。第２図は本考案実施例の動作時のタイミングチ
ヤート。第３図はＣＮＲ測定信号書込み位置を示
す図。第４図はスチル時のジヤンプ位置を示す図
。第５図はＩＳＯフオーマツトを示す図。第６図
は従来例の構成を示す図。
１……光デイスク、２……ロータリエンコーダ
、３……スピンドルモータ、４……ヘツド、５…
…サーボコントロール回路、６……読出信号処理
回路、７……ジヤンプセクタ設定手段、８……コ
ンパレータ。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a timing chart during operation of the embodiment of the present invention. FIG. 3 is a diagram showing the CNR measurement signal writing position. FIG. 4 is a diagram showing the jump position during still operation. FIG. 5 is a diagram showing the ISO format. FIG. 6 is a diagram showing the configuration of a conventional example. 1... Optical disk, 2... Rotary encoder, 3... Spindle motor, 4... Head, 5...
... Servo control circuit, 6 ... Read signal processing circuit, 7 ... Jump sector setting means, 8 ... Comparator.
Claims (1)
させる駆動手段と、この駆動手段に実装された光
デイスクの記録トラツクをアクセスするヘツドと
、このヘツドの出力信号からその光デイスクの信
号雑音比を含む特性測定を行う回路手段とを備え
た光デイスクの測定装置において、 前記光デイスクのジヤンプセクタのアドレスを
設定する設定手段と、 この設定手段に設定されたアドレスと前記ヘツ
ドの出力に得られるセクタのアドレスとを比較し
前記測定を行う回路手段に一致出力を与える比較
回路、 を備えたことを特徴とする光デイスクの測定装置
。[Claims for Utility Model Registration] A drive means for holding an optical disk and rotationally driving the optical disk, a head mounted on the drive means for accessing the recording track of the optical disk, and a head for accessing the recording track of the optical disk from the output signal of the head. An optical disk measuring device comprising: circuit means for measuring characteristics including a signal-to-noise ratio of a disk; a setting means for setting an address of a jump sector of the optical disk; 1. An optical disk measuring device comprising: a comparison circuit that compares the output of the output with the obtained sector address and provides a matching output to the circuit means for performing the measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11184889U JPH0352828U (en) | 1989-09-25 | 1989-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11184889U JPH0352828U (en) | 1989-09-25 | 1989-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0352828U true JPH0352828U (en) | 1991-05-22 |
Family
ID=31660312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11184889U Pending JPH0352828U (en) | 1989-09-25 | 1989-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352828U (en) |
-
1989
- 1989-09-25 JP JP11184889U patent/JPH0352828U/ja active Pending
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