JPH0246955U - - Google Patents
Info
- Publication number
- JPH0246955U JPH0246955U JP12246888U JP12246888U JPH0246955U JP H0246955 U JPH0246955 U JP H0246955U JP 12246888 U JP12246888 U JP 12246888U JP 12246888 U JP12246888 U JP 12246888U JP H0246955 U JPH0246955 U JP H0246955U
- Authority
- JP
- Japan
- Prior art keywords
- servo
- control circuit
- circuit
- data regarding
- data
- 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
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第1図は、本考案のデイスクプレーヤのブロツ
ク図、第2図は、同じく第2制御回路のフオーカ
スアウト検出に関する要部のプログラムのフロー
チヤートである。
2……デイスク、4……ピツクアツプ、7……
スピンドルサーボ回路、8……トラツキングサー
ボ回路、10……フイードサーボ回路、11……
フオーカスサーボ回路、13……第1制御回路、
18……第2制御回路。
FIG. 1 is a block diagram of the disc player of the present invention, and FIG. 2 is a flowchart of the main part of the program related to focus-out detection of the second control circuit. 2...Disk, 4...Pick up, 7...
Spindle servo circuit, 8... Tracking servo circuit, 10... Feed servo circuit, 11...
Focus servo circuit, 13...first control circuit,
18...Second control circuit.
Claims (1)
学的に記録情報信号を読み出すピツクアツプと、
該ピツクアツプ及びスピンドルモータのサーボ回
路と、該サーボ回路からの出力信号に基づきサー
ボ状態に関するデータを送出すると共に前記サー
ボ回路のサーボ制御を行なう第1制御回路と、該
第1制御回路にサーボ制御のコマンドデータを送
出すると共に前記第1制御回路からのサーボ状態
に関するデータに基づき各部を制御する第2制御
回路とを有し、該第2制御回路は前記第1制御回
路からのサーボ状態に関するデータの入力時、前
記サーボ回路の出力信号を検出し、前記データの
有効性を判断することを特徴とするデイスクプレ
ーヤ。 a pick-up that optically reads recorded information signals from a disk placed on a turntable;
a servo circuit for the pickup and spindle motor; a first control circuit that transmits data regarding the servo state based on an output signal from the servo circuit and performs servo control of the servo circuit; and a servo control circuit for the first control circuit. a second control circuit that sends command data and controls each section based on the data regarding the servo state from the first control circuit, and the second control circuit transmits the data regarding the servo state from the first control circuit. A disc player characterized in that the validity of the data is determined by detecting the output signal of the servo circuit at the time of input.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12246888U JPH0617212Y2 (en) | 1988-09-19 | 1988-09-19 | Disk player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12246888U JPH0617212Y2 (en) | 1988-09-19 | 1988-09-19 | Disk player |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0246955U true JPH0246955U (en) | 1990-03-30 |
JPH0617212Y2 JPH0617212Y2 (en) | 1994-05-02 |
Family
ID=31370430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12246888U Expired - Lifetime JPH0617212Y2 (en) | 1988-09-19 | 1988-09-19 | Disk player |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0617212Y2 (en) |
-
1988
- 1988-09-19 JP JP12246888U patent/JPH0617212Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0617212Y2 (en) | 1994-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0246955U (en) | ||
CA2031565A1 (en) | Optical disc apparatus | |
JPH03115959U (en) | ||
JPH01177459U (en) | ||
JPH0590669U (en) | Playback device | |
JPS63147081U (en) | ||
JPH0211555U (en) | ||
JPS60116615U (en) | Tracking feed control device | |
JPS609021U (en) | Optical disk player lens drive circuit | |
JPS59149230U (en) | Optical video disc player reading device | |
JPS6164622U (en) | ||
JPS63191418U (en) | ||
JPS61105988U (en) | ||
JPS61118160U (en) | ||
JPH0314799U (en) | ||
JPS6040070U (en) | Optical disc player device | |
JPH0394689U (en) | ||
JPS60116666U (en) | Tracking feed control device | |
JPS60159559U (en) | Disc record playback device | |
JPS60159558U (en) | Disc record playback device | |
JPS6442584U (en) | ||
JPH0310371U (en) | ||
JPH0175363U (en) | ||
JPH0284175U (en) | ||
JPH0159957U (en) |