JPS59135543U - Electronic editing VTR drum servo circuit - Google Patents
Electronic editing VTR drum servo circuitInfo
- Publication number
- JPS59135543U JPS59135543U JP2616183U JP2616183U JPS59135543U JP S59135543 U JPS59135543 U JP S59135543U JP 2616183 U JP2616183 U JP 2616183U JP 2616183 U JP2616183 U JP 2616183U JP S59135543 U JPS59135543 U JP S59135543U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase
- servo circuit
- servo
- vertical synchronization
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の電子編集ＶＴＲのドラムサーボ回路を示
すブロック線図、第２図はその説明に供するトラックパ
ターンを示すパターン図、第３図は第１図の説明に供す
る波形図、第４図及び第５図は第１図の説明に供するト
ラックパターンを示すパターン図、第６図は本考案によ
る電子編集ＶＴＲのドラムサーボ回路の一実施例を示す
ブロック線図、第７図はその説明に供する波形図である
。
１はテープ案内装置、２は回転上ドラム、３は固定下ド
ラム、４はドラムモータ、５は速度サーボ回路、６は第
１の位相サーボ回路、７は第２の位相サーボ回路、１０
は基準パルス発生回路である。FIG. 1 is a block diagram showing a drum servo circuit of a conventional electronic editing VTR, FIG. 2 is a pattern diagram showing a track pattern to explain the same, FIG. 3 is a waveform diagram to explain FIG. 1, and FIG. 5 and 5 are pattern diagrams showing track patterns for explaining FIG. 1, FIG. 6 is a block diagram showing an embodiment of the drum servo circuit of the electronic editing VTR according to the present invention, and FIG. 7 is an explanation thereof. FIG. 1 is a tape guide device, 2 is a rotating upper drum, 3 is a fixed lower drum, 4 is a drum motor, 5 is a speed servo circuit, 6 is a first phase servo circuit, 7 is a second phase servo circuit, 10
is a reference pulse generation circuit.
Claims (1)
号を形成する速度サーボ回路と、上記回転磁気ヘッドの
位相検出出力及び記録ビデオ信号の垂直同期信号を比較
して第１の位相サーボ信号を形成する第１の位相サーボ
回路と、アッセンブル編集再生時に上記記録ビデオ信号
の垂直同期信号及び再生ビデオ信号の垂直同期信号を比
較して第２の位相サーボ信号を形成する第２の位相サー
ボ回路とを有し、上記速度サーボ信号並びに上記第１及
び第２の位相サーボ信号の加算出力により上記ドラムモ
ータにサーボを掛ける様にした電子編集ＶＴＲのドラム
サーボ回路において、上記回転磁気ヘッドの位相検出出
力に対し所定位相関係を有する基準パルスを発生する基
準パルス発生回路を設け、アッセンブル編集記録時に上
記記録ビデオ信号の垂直同期信号及び上記基準パルス信
号を上記第２の位相サーボ回路に供給して比較して上記
第２の位相サーボ信号を形成するようにして成る電子編
集ＶＴＲのドラムサーボ回路。A speed servo circuit that forms a speed servo signal based on the speed detection output of the rotating magnetic head, and compares the phase detection output of the rotating magnetic head and the vertical synchronization signal of the recording video signal to form a first phase servo signal. a first phase servo circuit; and a second phase servo circuit that compares the vertical synchronization signal of the recorded video signal and the vertical synchronization signal of the reproduced video signal during assembly editing playback to form a second phase servo signal. In a drum servo circuit of an electronic editing VTR, in which the drum motor is servoed by the added output of the speed servo signal and the first and second phase servo signals, A reference pulse generation circuit that generates reference pulses having a predetermined phase relationship is provided, and the vertical synchronization signal of the recorded video signal and the reference pulse signal are supplied to the second phase servo circuit for comparison during assembly editing recording. A drum servo circuit for an electronic editing VTR configured to form a second phase servo signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2616183U JPS59135543U (en) | 1983-02-24 | 1983-02-24 | Electronic editing VTR drum servo circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2616183U JPS59135543U (en) | 1983-02-24 | 1983-02-24 | Electronic editing VTR drum servo circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59135543U true JPS59135543U (en) | 1984-09-10 |
| JPH0138761Y2 JPH0138761Y2 (en) | 1989-11-20 |
Family
ID=30157106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2616183U Granted JPS59135543U (en) | 1983-02-24 | 1983-02-24 | Electronic editing VTR drum servo circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59135543U (en) |
-
1983
- 1983-02-24 JP JP2616183U patent/JPS59135543U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0138761Y2 (en) | 1989-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5897737U (en) | magnetic recording and reproducing device | |
| JPS59185736U (en) | Video signal reproducing device | |
| JPS59135543U (en) | Electronic editing VTR drum servo circuit | |
| US5276560A (en) | Rotary magnetic type recording apparatus | |
| KR860007628A (en) | Record Mode Discrimination Switching Method | |
| JPS5843077U (en) | Head switching circuit | |
| JPS619976U (en) | FM audio recording VTR | |
| JPS6179840U (en) | ||
| JPS6085720U (en) | PCM tape dubbing equipment | |
| JPS6116702U (en) | Fixed head type digital magnetic recording and reproducing device | |
| JPS58173975U (en) | Magnetic tape running drive device for magnetic recording and reproducing equipment | |
| JPS6035368U (en) | Clock generator for recording/playback equipment | |
| JPS58127762U (en) | Tape travel control system for magnetic recording and reproducing equipment | |
| JPS59118149U (en) | video tape recorder | |
| JPS6080561U (en) | magnetic recording and reproducing device | |
| JPS603904U (en) | video tape recorder | |
| JPS5897793U (en) | magnetic recording and playback device | |
| JPS58191776U (en) | Video and audio signal recording and playback equipment | |
| JPS5843076U (en) | magnetic recording and reproducing device | |
| JPS6198238U (en) | ||
| JPS6179839U (en) | ||
| JPH056752B2 (en) | ||
| JPS6022071U (en) | Video tape recorder still playback device | |
| JPS62150716U (en) | ||
| JPS5922578U (en) | magnetic recording and reproducing device |