JPS6349660U - - Google Patents
Info
- Publication number
- JPS6349660U JPS6349660U JP14264986U JP14264986U JPS6349660U JP S6349660 U JPS6349660 U JP S6349660U JP 14264986 U JP14264986 U JP 14264986U JP 14264986 U JP14264986 U JP 14264986U JP S6349660 U JPS6349660 U JP S6349660U
- Authority
- JP
- Japan
- Prior art keywords
- envelope
- reproduced signal
- predetermined level
- comparison
- detection means
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案による装置の一実施例を示すブ
ロツク図、第２図は高速サーチ動作時の第１図中
の各部の波形を示すタイミングチヤート図、第３
図はＲ―ＤＡＴのトラツクフオーマツト及びブロ
ツクフオーマツトを示す説明図、第４図は高速サ
ーチ時の回転ヘツドの走行軌跡とトラツクの関係
を示す説明図、及び第５図は高速サーチ時の再生
信号を示す図である。
１９……スイツチ、２０……エンベロープ検波
器、２２……切替スイツチ、２５……コンパレー
タ、Ｖｒ……基準電圧。
FIG. 1 is a block diagram showing one embodiment of the device according to the present invention, FIG. 2 is a timing chart showing waveforms of various parts in FIG. 1 during high-speed search operation, and FIG.
The figure is an explanatory diagram showing the track format and block format of R-DAT, Figure 4 is an explanatory diagram showing the relationship between the travel trajectory of the rotary head and the track during high-speed search, and Figure 5 is an explanatory diagram showing the relationship between the track and track formats during high-speed search. It is a figure which shows a signal. 19... Switch, 20... Envelope detector, 22... Changeover switch, 25... Comparator, Vr... Reference voltage.
Claims (1)
エンベロープを取るエンベロープ検波手段と、 該エンベロープ検波手段の出力を所定レベルと
比較する比較手段と、 該比較手段による比較結果によりエンベロープ
が所定レベルに対して所定の関係にない期間再生
信号を処理できなくする手段とを備える、 ことを特徴とする回転ヘツド式デジタルオーデイ
オ再生装置。[Scope of Claim for Utility Model Registration] Envelope detection means for detecting the envelope of a reproduced signal from a rotating head during high-speed search operation; comparison means for comparing the output of the envelope detection means with a predetermined level; and a comparison result by the comparison means. 1. A rotary head type digital audio reproducing apparatus, comprising: means for disabling a reproduced signal during a period in which the envelope is not in a predetermined relationship with a predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14264986U JPS6349660U (en) | 1986-09-19 | 1986-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14264986U JPS6349660U (en) | 1986-09-19 | 1986-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6349660U true JPS6349660U (en) | 1988-04-04 |
Family
ID=31051579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14264986U Pending JPS6349660U (en) | 1986-09-19 | 1986-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6349660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07210949A (en) * | 1993-12-30 | 1995-08-11 | Samsung Electron Co Ltd | Variable-speed reproducing apparatus of digital vcr |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55157141A (en) * | 1979-05-28 | 1980-12-06 | Hitachi Ltd | Control word detecting circuit |
| JPS55157114A (en) * | 1979-05-23 | 1980-12-06 | Matsushita Electric Ind Co Ltd | Muting circuit |
| JPS59151313A (en) * | 1983-02-15 | 1984-08-29 | Toshiba Corp | Information recording system |
-
1986
- 1986-09-19 JP JP14264986U patent/JPS6349660U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55157114A (en) * | 1979-05-23 | 1980-12-06 | Matsushita Electric Ind Co Ltd | Muting circuit |
| JPS55157141A (en) * | 1979-05-28 | 1980-12-06 | Hitachi Ltd | Control word detecting circuit |
| JPS59151313A (en) * | 1983-02-15 | 1984-08-29 | Toshiba Corp | Information recording system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07210949A (en) * | 1993-12-30 | 1995-08-11 | Samsung Electron Co Ltd | Variable-speed reproducing apparatus of digital vcr |