JPH0371455U - - Google Patents
Info
- Publication number
- JPH0371455U JPH0371455U JP13251589U JP13251589U JPH0371455U JP H0371455 U JPH0371455 U JP H0371455U JP 13251589 U JP13251589 U JP 13251589U JP 13251589 U JP13251589 U JP 13251589U JP H0371455 U JPH0371455 U JP H0371455U
- Authority
- JP
- Japan
- Prior art keywords
- digital audio
- audio signal
- recorded
- reproduction
- reproduction speed
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims 8
- 238000001514 detection method Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図。第２図はこの考案の応用例を示すブロツ
ク図。
１……コンパクトデイスク、２……光ピツクア
ツプ、３……デイスク駆動機構、４……制御回路
、５……信号処理回路、６および６Ａ……デジタ
ルフイルタ、７および７Ａ……Ｄ／Ａ変換回路、
９……システムコントローラ、１２……コンパク
トデイスク再生装置、１３……デジタルＩ／Ｏ受
信回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of this invention. Figure 2 is a block diagram showing an example of application of this invention. 1...Compact disk, 2...Optical pickup, 3...Disk drive mechanism, 4...Control circuit, 5...Signal processing circuit, 6 and 6A...Digital filter, 7 and 7A...D/A conversion circuit ,
9...System controller, 12...Compact disk playback device, 13...Digital I/O receiving circuit.
Claims (1)
イオ信号の再生を規定の再生速度による再生と前
記規定の再生速度以外の再生速度による再生とに
切替指示手段による指示に伴つて選択可能に構成
されたデジタルオーデイオ再生装置において、前
記記録デジタルオーデイオ信号がエンフアシスさ
れているか否かを検出する検出手段と、前記記録
手段から読み出されて信号処理されたデジタルオ
ーデイオ信号を入力とし、かつ検出手段による検
出出力にともなつて選択的に入力デジタルオーデ
イオ信号をデイエンフアシスするデジタルフイル
タと、デジタルフイルタの出力をアナログ信号に
変換するＤ／Ａ変換手段とを備えたことを特徴と
するデジタルオーデイオ再生装置。 (2) 記録手段に記録された記録デジタルオーデ
イオ信号の再生を規定する再生速度以外の再生速
度によつて再生するデジタルオーデイオ再生装置
において、前記記録デジタルオーデイオ信号がエ
ンフアシスされているか否かを検出する検出手段
と、前記記録手段から読み出しかつ信号処理され
たデジタルオーデイオ信号を入力とし、かつ検出
手段による検出出力にともなつて選択的に入力デ
ジタルオーデイオ信号をデイエンフアシスするデ
ジタルフイルタと、デジタルフイルタの出力をア
ナログ信号に変換するＤ／Ａ変換手段とを備えた
ことを特徴とするデジタルオーデイオ再生装置。[Scope of Claim for Utility Model Registration] (1) In response to an instruction by an instruction means for switching the reproduction of a recorded digital audio signal recorded on a recording means between reproduction at a prescribed reproduction speed and reproduction at a reproduction speed other than the prescribed reproduction speed. In the digital audio playback device configured to be selectable, a detection means detects whether or not the recorded digital audio signal is emphasized, and a digital audio signal read from the recording means and subjected to signal processing is inputted. and a digital filter that selectively de-emphasizes an input digital audio signal in accordance with the detection output of the detection means, and a D/A conversion means that converts the output of the digital filter into an analog signal. Digital audio playback device. (2) In a digital audio reproducing device that reproduces a recorded digital audio signal recorded in a recording means at a reproduction speed other than a prescribed reproduction speed, detecting whether or not the recorded digital audio signal is emphasized. a detection means, a digital filter which receives as input the digital audio signal read out from the recording means and subjected to signal processing, and selectively de-emphasizes the input digital audio signal in accordance with the detection output of the detection means; and an output of the digital filter. A digital audio playback device comprising: D/A conversion means for converting into an analog signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989132515U JP2538606Y2 (en) | 1989-11-16 | 1989-11-16 | Digital audio player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989132515U JP2538606Y2 (en) | 1989-11-16 | 1989-11-16 | Digital audio player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0371455U true JPH0371455U (en) | 1991-07-19 |
| JP2538606Y2 JP2538606Y2 (en) | 1997-06-18 |
Family
ID=31679968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989132515U Expired - Fee Related JP2538606Y2 (en) | 1989-11-16 | 1989-11-16 | Digital audio player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538606Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224472A (en) * | 1985-07-25 | 1987-02-02 | Nec Home Electronics Ltd | Digital audio reproducing device |
| JPS62149070A (en) * | 1985-12-23 | 1987-07-03 | Pioneer Electronic Corp | Sound signal processing circuit |
-
1989
- 1989-11-16 JP JP1989132515U patent/JP2538606Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224472A (en) * | 1985-07-25 | 1987-02-02 | Nec Home Electronics Ltd | Digital audio reproducing device |
| JPS62149070A (en) * | 1985-12-23 | 1987-07-03 | Pioneer Electronic Corp | Sound signal processing circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538606Y2 (en) | 1997-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |