JPH0454063U - - Google Patents
Info
- Publication number
- JPH0454063U JPH0454063U JP9512990U JP9512990U JPH0454063U JP H0454063 U JPH0454063 U JP H0454063U JP 9512990 U JP9512990 U JP 9512990U JP 9512990 U JP9512990 U JP 9512990U JP H0454063 U JPH0454063 U JP H0454063U
- Authority
- JP
- Japan
- Prior art keywords
- atip
- signal
- decoder
- phase comparison
- synchronization signal
- 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.)
- Granted
Links
- 239000000284 extract Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、この考案によるスピンドルモータ制
御装置の一実施例を示す厚生図である。
１……デイスク、２……スピンドルモータ、３
……記録信号処理部、４……光変調器、５……光
ピツクアツプ、６……ＷＯＢＢＬＥ増幅器、７…
…位相比較器、８……ＡＴＩＰデコーダ、９……
ＦＶコンバータ、１０……電圧比較器、１１……
増幅器。
FIG. 1 is a welfare diagram showing an embodiment of a spindle motor control device according to this invention. 1...Disc, 2...Spindle motor, 3
...recording signal processing unit, 4...optical modulator, 5...optical pickup, 6...WOBBLE amplifier, 7...
...Phase comparator, 8...ATIP decoder, 9...
FV converter, 10... Voltage comparator, 11...
amplifier.
Claims (1)
るＷＯＢＢＬＥ信号からＡＴＩＰ（Ａｂｓｏｌｕ
ｔｅ Ｔｉｍｅ Ｉｎｐｒｏｇｒｏｏｖｅ）デー
タのＡＴＩＰ同期信号を生成するＡＴＩＰデコー
ダと、 記録信号のサブコード同期信号と前記ＡＴＩＰ
デコーダで得られるＡＴＩＰ同期信号の位相差を
出力する位相比較手段と、 前記位相比較手段の出力に基づいてスピンドル
モータを回転制御する制御手段と、 を備えて成ることを特徴とするスピンドルモータ
制御装置。 (2) ピツクアツプを介してデイスクから得られ
るＷＯＢＢＬＥ信号からＡＴＩＰ（ＡｂｓｏＩｕ
ｔｅ Ｔｉｍｅ Ｉｎｐｒｏｇｒｏｏｖｅ）デー
タのＡＴＩＰ同期信号を生成するＡＴＩＰデコー
ダと、 記録信号のサブコード同期信号と前記ＡＴＩＰ
デコーダで得られるＡＴＩＰ同期信号の位相差を
出力する位相比較手段と、 前記ＷＯＢＢＬＥ信号からＦＭ変調中心周波数
を取り出し、電圧信号として出力するＦＶコンバ
ータと、 前記位相比較手段からの出力対応の電圧信号と
前記ＦＶコンバータからの電圧信号との差信号に
基づいてスピンドルを回転制御する制御手段と、 を備えて成ることを特徴とするスピンドルモータ
制御装置。[Claims for Utility Model Registration] (1) ATIP (Absolute) from the WOBBLE signal obtained from the disk via pick-up
an ATIP decoder that generates an ATIP synchronization signal of the data; and a subcode synchronization signal of the recording signal and the ATIP decoder.
A spindle motor control device comprising: a phase comparison unit that outputs a phase difference between ATIP synchronization signals obtained by a decoder; and a control unit that controls rotation of a spindle motor based on the output of the phase comparison unit. . (2) ATIP (AbsoIu) from the WOBBLE signal obtained from the disk via pick-up.
an ATIP decoder that generates an ATIP synchronization signal of the data; and a subcode synchronization signal of the recording signal and the ATIP decoder.
A phase comparison means that outputs the phase difference of the ATIP synchronization signal obtained by the decoder, an FV converter that extracts the FM modulation center frequency from the WOBBLE signal and outputs it as a voltage signal, and a voltage signal corresponding to the output from the phase comparison means. A spindle motor control device comprising: control means for controlling rotation of a spindle based on a difference signal from a voltage signal from the FV converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095129U JP2514972Y2 (en) | 1990-09-12 | 1990-09-12 | Spindle motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095129U JP2514972Y2 (en) | 1990-09-12 | 1990-09-12 | Spindle motor controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0454063U true JPH0454063U (en) | 1992-05-08 |
| JP2514972Y2 JP2514972Y2 (en) | 1996-10-23 |
Family
ID=31833613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990095129U Expired - Lifetime JP2514972Y2 (en) | 1990-09-12 | 1990-09-12 | Spindle motor controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514972Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62170072A (en) * | 1986-01-21 | 1987-07-27 | Nippon Kogaku Kk <Nikon> | Reproducing device for discoid rotary recording medium |
| JPH01302575A (en) * | 1988-05-30 | 1989-12-06 | Sony Corp | Optical disk device |
-
1990
- 1990-09-12 JP JP1990095129U patent/JP2514972Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62170072A (en) * | 1986-01-21 | 1987-07-27 | Nippon Kogaku Kk <Nikon> | Reproducing device for discoid rotary recording medium |
| JPH01302575A (en) * | 1988-05-30 | 1989-12-06 | Sony Corp | Optical disk device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514972Y2 (en) | 1996-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |