JPS63191418U - - Google Patents

Info

Publication number
JPS63191418U
JPS63191418U JP7959087U JP7959087U JPS63191418U JP S63191418 U JPS63191418 U JP S63191418U JP 7959087 U JP7959087 U JP 7959087U JP 7959087 U JP7959087 U JP 7959087U JP S63191418 U JPS63191418 U JP S63191418U
Authority
JP
Japan
Prior art keywords
pick
slice level
track
circuit
track search
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
Application number
JP7959087U
Other languages
Japanese (ja)
Other versions
JP2558049Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987079590U priority Critical patent/JP2558049Y2/en
Publication of JPS63191418U publication Critical patent/JPS63191418U/ja
Application granted granted Critical
Publication of JP2558049Y2 publication Critical patent/JP2558049Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示すブロツク図、
第２図はスライスレベル出力線図、第３図は従来
のスライスレベル出力線図である。 １……ピツクアツプ、３……データスライサ、
５……サーボコントロールプロセツサ。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a slice level output diagram, and FIG. 3 is a conventional slice level output diagram. 1...Pickup, 3...Data slicer,
5... Servo control processor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピツクアツプからのＨＦ信号にスライスレベル
を設定してデジタル信号に変換する回路において
、ピツクアツプのトラツクサーチ時におけるトラ
ツクジヤンプ期間とデータリード期間とでスライ
スレベルを切換えるべくトラツクサーチ用サーボ
コントロールプロセツサ出力をデータスライサに
接続させたことを特徴とするコンパクトデイスク
のピツクアツプ出力回路。 In a circuit that sets a slice level for an HF signal from a pick-up and converts it into a digital signal, the track search servo control processor output is set to data in order to switch the slice level between the track jump period and the data read period during a pick-up track search. A pickup output circuit for a compact disk characterized by being connected to a slicer.
JP1987079590U 1987-05-26 1987-05-26 Compact Disc Pickup Output Circuit Expired - Lifetime JP2558049Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987079590U JP2558049Y2 (en) 1987-05-26 1987-05-26 Compact Disc Pickup Output Circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987079590U JP2558049Y2 (en) 1987-05-26 1987-05-26 Compact Disc Pickup Output Circuit

Publications (2)

Publication Number Publication Date
JPS63191418U true JPS63191418U (en) 1988-12-09
JP2558049Y2 JP2558049Y2 (en) 1997-12-17

Family

ID=30929595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987079590U Expired - Lifetime JP2558049Y2 (en) 1987-05-26 1987-05-26 Compact Disc Pickup Output Circuit

Country Status (1)

Country Link
JP (1) JP2558049Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143928A (en) * 1988-11-25 1990-06-01 Fujitsu Ltd System for detecting off-track of optical disk device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172567A (en) * 1986-01-24 1987-07-29 Toshiba Corp Disk reproducing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172567A (en) * 1986-01-24 1987-07-29 Toshiba Corp Disk reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143928A (en) * 1988-11-25 1990-06-01 Fujitsu Ltd System for detecting off-track of optical disk device

Also Published As

Publication number Publication date
JP2558049Y2 (en) 1997-12-17

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