JPS5936016U - PCM disk playback device - Google Patents

PCM disk playback device

Info

Publication number
JPS5936016U
JPS5936016U JP13268182U JP13268182U JPS5936016U JP S5936016 U JPS5936016 U JP S5936016U JP 13268182 U JP13268182 U JP 13268182U JP 13268182 U JP13268182 U JP 13268182U JP S5936016 U JPS5936016 U JP S5936016U
Authority
JP
Japan
Prior art keywords
pcm
disc
level
playback device
reproducing
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
JP13268182U
Other languages
Japanese (ja)
Other versions
JPH0316142Y2 (en
Inventor
宏 菅野
健 大西
雅之 石田
Original Assignee
三菱電機株式会社
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 by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP13268182U priority Critical patent/JPS5936016U/en
Publication of JPS5936016U publication Critical patent/JPS5936016U/en
Application granted granted Critical
Publication of JPH0316142Y2 publication Critical patent/JPH0316142Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図はこの考案の一実施例にょるＰＣＭディスク再生
装置のブロック図、第２図はレベルダウン回路Ｉの略配
線図、第３図はレベルダウン回路■の略配線図である。 図において、２・・・光ピツクアップ、４・・・フォー
カスサーボ回路、５・・・トラッキングサーボ回路、６
・・・ディスクサーボ回路、７・・・復調回路、８・・
・復号回路、９・・・Ｄ／Ａ変換回路、１１・・・シー
ケンコントロール回路、１２・・・操作ボタン、１３・
・・ジャンプパルス発生回路、１４・・・加算回路、１
５・・・レベルダウン回路■、１６・・・レベルダウン
回路■、１８・・・増幅器、１９，２０．２１・・・帰
還抵抗、２２・・・利得切替スイッチである。なお、図
中、同一符号は同一、又は相当部分を示す。FIG. 1 is a block diagram of a PCM disk reproducing apparatus according to an embodiment of the invention, FIG. 2 is a schematic wiring diagram of a level down circuit I, and FIG. 3 is a schematic wiring diagram of a level down circuit (2). In the figure, 2... optical pickup, 4... focus servo circuit, 5... tracking servo circuit, 6...
... Disk servo circuit, 7... Demodulation circuit, 8...
-Decoding circuit, 9...D/A conversion circuit, 11...Sequence control circuit, 12...Operation button, 13.
... Jump pulse generation circuit, 14 ... Addition circuit, 1
5... Level down circuit ■, 16... Level down circuit ■, 18... Amplifier, 19, 20. 21... Feedback resistor, 22... Gain changeover switch. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）デジタルオーデオ信号が同心円状またはスパイラ
ル状に記録されているディスク（盤）を再生する装置に
おいて、順方向あるいは逆方向の早送り時に、ディスク
の半径方向に一定の距離を移動させる手段と、ある一定
の時間、信号を再生する手段と、再生音のレベルを通常
の再生状態よりも小さくする手段を備えたことを特徴と
するＰＣＭディスク再生装置。(1) In a device for reproducing a disc (disc) on which digital audio signals are recorded concentrically or spirally, means for moving the disc a certain distance in the radial direction when fast forwarding in the forward or reverse direction; A PCM disk reproducing device characterized by comprising means for reproducing a signal for a certain period of time and means for reducing the level of reproduced sound to a level lower than that in a normal reproduction state. （２）デジタル演算回路またはアナログ演算回路により
、再生音のレベルを少さくすることを特徴とする実用新
案登録請求の範囲第１項記載のＰＣＭディスク再生装置
。(2) The PCM disk reproducing apparatus according to claim 1, which is a utility model, and is characterized in that the level of reproduced sound is reduced by a digital arithmetic circuit or an analog arithmetic circuit.
JP13268182U 1982-08-30 1982-08-30 PCM disk playback device Granted JPS5936016U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13268182U JPS5936016U (en) 1982-08-30 1982-08-30 PCM disk playback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13268182U JPS5936016U (en) 1982-08-30 1982-08-30 PCM disk playback device

Publications (2)

Publication Number Publication Date
JPS5936016U true JPS5936016U (en) 1984-03-06
JPH0316142Y2 JPH0316142Y2 (en) 1991-04-08

Family

ID=30299549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13268182U Granted JPS5936016U (en) 1982-08-30 1982-08-30 PCM disk playback device

Country Status (1)

Country Link
JP (1) JPS5936016U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150662U (en) * 1984-03-13 1985-10-07 パイオニア株式会社 Digital audio recording media playback device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105866A (en) * 1980-12-23 1982-07-01 Matsushita Electric Ind Co Ltd Pcm-audio disc playback device
JPS57110723U (en) * 1980-12-27 1982-07-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105866A (en) * 1980-12-23 1982-07-01 Matsushita Electric Ind Co Ltd Pcm-audio disc playback device
JPS57110723U (en) * 1980-12-27 1982-07-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150662U (en) * 1984-03-13 1985-10-07 パイオニア株式会社 Digital audio recording media playback device

Also Published As

Publication number Publication date
JPH0316142Y2 (en) 1991-04-08

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