JPS63142033U - - Google Patents
Info
- Publication number
- JPS63142033U JPS63142033U JP3194487U JP3194487U JPS63142033U JP S63142033 U JPS63142033 U JP S63142033U JP 3194487 U JP3194487 U JP 3194487U JP 3194487 U JP3194487 U JP 3194487U JP S63142033 U JPS63142033 U JP S63142033U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- speed detection
- rotary head
- speed
- magnetic recording
- 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 description 9
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案による一実施例を示すブロツク
構成図、第２図ａ，ｂは実施例における相対速度
検出回路ならびに速度検出回路の出力特性図、第
３図は従来例を示すブロツク構成図、第４図はＲ
―ＤＡＴの概略を説明するための図である。
１４…相対速度検出回路、１５…速度検出回路
。
FIG. 1 is a block configuration diagram showing an embodiment of the present invention, FIGS. 2a and b are output characteristic diagrams of the relative speed detection circuit and speed detection circuit in the embodiment, and FIG. 3 is a block configuration diagram showing a conventional example. , Figure 4 shows R
- It is a diagram for explaining the outline of DAT. 14... Relative speed detection circuit, 15... Speed detection circuit.
Claims (1)
記録媒体上に単位時間分毎に１本ずつ斜めのトラ
ツクを形成して記録するとともに、これを再生す
るようにした回転ヘツド式磁気記録再生装置にお
いて、 上記回転ヘツドにより再生された信号に基づい
て相対速度を検出する相対速度検出回路と、 上記回転ヘツドを回転駆動するドラムモータの
回転速度を検出する速度検出回路とを備え、 高速サーチ時に、上記相対速度検出回路と速度
検出回路の両出力に基づく演算出力によりドラム
モータの速度制御を行なうとともに、上記速度検
出回路の出力に基づく演算出力によりリールモー
タの速度制御を行なうようにしたことを特徴とす
る回転ヘツド式磁気記録再生装置。[Claims for Utility Model Registration] A rotary head type magnetic recording device that records an audio PCM signal on a magnetic recording medium by forming diagonal tracks one by one every unit time using a rotary head, and also reproduces the diagonal tracks. A recording/reproducing device, comprising: a relative speed detection circuit that detects a relative speed based on a signal reproduced by the rotary head; and a speed detection circuit that detects the rotational speed of a drum motor that rotationally drives the rotary head; During the search, the speed of the drum motor is controlled by a calculation output based on the outputs of both the relative speed detection circuit and the speed detection circuit, and the speed of the reel motor is controlled by the calculation output based on the output of the speed detection circuit. A rotating head type magnetic recording and reproducing device characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194487U JPS63142033U (en) | 1987-03-06 | 1987-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3194487U JPS63142033U (en) | 1987-03-06 | 1987-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63142033U true JPS63142033U (en) | 1988-09-19 |
Family
ID=30838150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3194487U Pending JPS63142033U (en) | 1987-03-06 | 1987-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63142033U (en) |
-
1987
- 1987-03-06 JP JP3194487U patent/JPS63142033U/ja active Pending