JPS646516U - - Google Patents
Info
- Publication number
- JPS646516U JPS646516U JP10145887U JP10145887U JPS646516U JP S646516 U JPS646516 U JP S646516U JP 10145887 U JP10145887 U JP 10145887U JP 10145887 U JP10145887 U JP 10145887U JP S646516 U JPS646516 U JP S646516U
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- rotary
- head
- rotational phase
- signal
- 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 4
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図及び第４図は夫々本考案装置の各実施例
を示すブロツク系統図、第２図及び第３図は夫々
本考案装置の要部の機構の一実施例を示す平面図
及び側面図、第５図は従来装置の一例を示すブロ
ツク系統図、第６図は回転検出パルスの波形図、
第７図は回転ドラムの位相角の説明図、第８図は
トラツクパターンと回転ヘツド位置との関係を説
明する図である。
１，２……回転ヘツド、３……回転ドラム、１
４……マグネツト、１５……磁気テープ、２４，
３８……フイルタ、２３，３７……スイツチング
回路、３５……記録信号入力端子。
1 and 4 are block system diagrams showing respective embodiments of the device of the present invention, and FIGS. 2 and 3 are plan views and side views, respectively, showing one embodiment of the main mechanism of the device of the present invention. , FIG. 5 is a block system diagram showing an example of a conventional device, FIG. 6 is a waveform diagram of rotation detection pulses,
FIG. 7 is a diagram for explaining the phase angle of the rotating drum, and FIG. 8 is a diagram for explaining the relationship between the track pattern and the position of the rotating head. 1, 2... Rotating head, 3... Rotating drum, 1
4...Magnet, 15...Magnetic tape, 24,
38... Filter, 23, 37... Switching circuit, 35... Recording signal input terminal.
Claims (1)
２個の回転ヘツドのうち、現に磁気テープ上を摺
動走査している一の回転ヘツドに情報信号を選択
的に供給して記録させるか、又は再生時に該一の
回転ヘツドからの再生信号を選択的に出力するス
イツチング回路をスイツチング制御するために、
前記回転体の回転位相を検出する検出装置であつ
て、 前記回転体の近傍で、かつ、該２個の回転ヘツ
ドの両方がいずれも該磁気テープに接触していな
い区間に離間配置された固定のマグネツトと、 前記回転ヘツドが該マグネツトの前方を通過す
る毎に該回転ヘツドから取り出される信号を前記
回転体の回転位相検出信号として周波数選択して
分離出力する分離手段とからなる回転位相検出装
置。[Claims for Utility Model Registration] Information signals are selected for one of the two rotating heads that are mounted and fixed opposite to each other on the rotating surface of a rotating body and that is currently slidingly scanning the magnetic tape. In order to control a switching circuit which selectively outputs a playback signal from the rotary head by supplying the same to the rotary head for recording or selectively outputs the playback signal from the one rotary head during playback,
A detection device for detecting the rotational phase of the rotary body, the fixed device being spaced apart from the rotary body in an area where neither of the two rotary heads is in contact with the magnetic tape. A rotational phase detection device comprising: a magnet; and separation means for frequency-selecting and separating and outputting a signal taken out from the rotating head as a rotational phase detection signal of the rotating body each time the rotating head passes in front of the magnet. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10145887U JPS646516U (en) | 1987-07-01 | 1987-07-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10145887U JPS646516U (en) | 1987-07-01 | 1987-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646516U true JPS646516U (en) | 1989-01-13 |
Family
ID=31330472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10145887U Pending JPS646516U (en) | 1987-07-01 | 1987-07-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646516U (en) |
-
1987
- 1987-07-01 JP JP10145887U patent/JPS646516U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS646516U (en) | ||
| JPS628775U (en) | ||
| JPH048708Y2 (en) | ||
| JP2519326Y2 (en) | Magnetic tape with frequency signal recorded | |
| JPH0614309Y2 (en) | Magnetic recording / reproducing device | |
| JPH0468831B2 (en) | ||
| JPH0552597B2 (en) | ||
| JPH0516666Y2 (en) | ||
| JPH0481201U (en) | ||
| JPH039422Y2 (en) | ||
| JPH01162128U (en) | ||
| JPS6352363U (en) | ||
| JPS6088667U (en) | video tape recorder | |
| JPS5472622A (en) | Rest/slow motion regenerative system | |
| JPS6399337U (en) | ||
| JPS6229646U (en) | ||
| JPS6347434U (en) | ||
| JPS6349625U (en) | ||
| JPS627614U (en) | ||
| JPH01159287U (en) | ||
| JPH0268302U (en) | ||
| JPS63129205U (en) | ||
| JPS62171047U (en) | ||
| JPS6453375A (en) | Tracking device | |
| JPS6349631U (en) |