JPS6435530U - - Google Patents
Info
- Publication number
- JPS6435530U JPS6435530U JP12920187U JP12920187U JPS6435530U JP S6435530 U JPS6435530 U JP S6435530U JP 12920187 U JP12920187 U JP 12920187U JP 12920187 U JP12920187 U JP 12920187U JP S6435530 U JPS6435530 U JP S6435530U
- Authority
- JP
- Japan
- Prior art keywords
- video tape
- tape recorder
- output
- recording
- state
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
Landscapes
- Closed-Circuit Television Systems (AREA)
Description
第１図は本考案のビデオテープレコーダ装置の
一実施例を示す図、第２図は第１図の装置の動作
を説明する図、第３図は第１図中各ビデオテープ
レコーダに組み込まれているガイドドラムの構造
を示す図、第４図は記録用ヘツドが形成したトラ
ツクをモニタ用ヘツドが走査する状況を示す図で
ある。
１……第１のビデオテープレコーダ、２……第
２のビデオテープレコーダ、３，４……記録用ヘ
ツド、５，６……モニタ用ヘツド、７……ガイド
ドラム、８……磁気テープ、９……トラツク、１
０１，１０２……始動端子、１１１，１１２……
停止端子、１２１，１２２……ビデオ入力端子、
１３１，１３２……ビデオ出力端子、１５……ス
イツチ、１６〜１９……接点、２０，２１……接
片、２２……比較回路、２３……第１の遅延回路
、２４……第２の遅延回路。
FIG. 1 is a diagram showing an embodiment of the video tape recorder device of the present invention, FIG. 2 is a diagram explaining the operation of the device in FIG. 1, and FIG. FIG. 4 is a diagram showing the structure of the guide drum used in the recording apparatus, and FIG. 4 is a diagram showing a situation in which the monitoring head scans a track formed by the recording head. DESCRIPTION OF SYMBOLS 1...First video tape recorder, 2...Second video tape recorder, 3, 4...Recording head, 5, 6...Monitoring head, 7...Guide drum, 8...Magnetic tape, 9...Truck, 1
0 1 , 10 2 ... Starting terminal, 11 1 , 11 2 ...
Stop terminal, 12 1 , 12 2 ... video input terminal,
13 1 , 13 2 ... video output terminal, 15 ... switch, 16 to 19 ... contact, 20, 21 ... contact piece, 22 ... comparison circuit, 23 ... first delay circuit, 24 ... third 2 delay circuit.
Claims (1)
記録ヘツドが記録した信号を再生するモニタ用ヘ
ツド及び信号が入力すると記録動作を開始する始
動端子、信号が入力すると記録動作を停止する停
止端子を有する第１、第２のビデオテープレコー
ダと、 該第１のビデオテープレコーダの停止端子と該
第２のビデオテープレコーダの始動端子とに接続
される第１の状態と、該第１のビデオテープレコ
ーダの始動端子と該第２のビデオテープレコーダ
の停止端子とに接続される第２の状態との間で切
り換えられるスイツチと、 上記第１、第２のビデオテープレコーダのうち
一方のビデオテープレコーダを記録動作待機状態
とし、他方のビデオテープレコーダにより記録動
作を行なつているときに、上記モニタ用ヘツドの
再生出力のエンベロープを検波する回路と、 該検波回路の出力のレベルを基準レベルと比較
して上記出力のレベルが上記基準レベルより低く
なつたときに信号を出力する比較回路とよりなり
、 該比較回路の出力が上記スイツチを通して待機
状態のビデオテープレコーダの上記始動端子、記
録動作中のビデオテープレコーダの上記停止端子
に加えられ、待機状態のビデオテープレコーダが
記録動作を開始し、記録動作中のビデオテープレ
コーダが停止し、且つ該比較回路の出力により上
記スイツチが今までとは異なる第１又は第２の状
態に切り換えられる構成としてなるビデオテープ
レコーダ装置。[Claims for Utility Model Registration] A recording head that records signals on the tape, a monitor head that reproduces the signals recorded by the recording head, a start terminal that starts recording when a signal is input, and a recording head that starts recording when a signal is input. first and second video tape recorders having stop terminals for stopping operation; a first state connected to the stop terminal of the first video tape recorder and the start terminal of the second video tape recorder; , a switch connected to a start terminal of the first video tape recorder and a stop terminal of the second video tape recorder, the switch being switched between a second state; and the first and second video tape recorders. a circuit for detecting the envelope of the playback output of the monitor head when one of the video tape recorders is in a recording operation standby state and the other video tape recorder is performing a recording operation; and an output of the detection circuit. and a comparison circuit that compares the level of the output with a reference level and outputs a signal when the level of the output becomes lower than the reference level, and the output of the comparison circuit is passed through the switch to the output of the video tape recorder in the standby state. The start terminal is applied to the above-mentioned stop terminal of the video tape recorder in the recording operation, the video tape recorder in the standby state starts the recording operation, the video tape recorder in the recording operation stops, and the above-mentioned signal is applied by the output of the comparison circuit. A video tape recorder device having a configuration in which a switch can be switched to a first or second state different from the previous state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987129201U JPH0614267Y2 (en) | 1987-08-27 | 1987-08-27 | Video tape recorder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987129201U JPH0614267Y2 (en) | 1987-08-27 | 1987-08-27 | Video tape recorder device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6435530U true JPS6435530U (en) | 1989-03-03 |
| JPH0614267Y2 JPH0614267Y2 (en) | 1994-04-13 |
Family
ID=31383258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987129201U Expired - Lifetime JPH0614267Y2 (en) | 1987-08-27 | 1987-08-27 | Video tape recorder device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614267Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58140529U (en) * | 1982-03-11 | 1983-09-21 | 日本ビクター株式会社 | cassette tape recorder |
-
1987
- 1987-08-27 JP JP1987129201U patent/JPH0614267Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58140529U (en) * | 1982-03-11 | 1983-09-21 | 日本ビクター株式会社 | cassette tape recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0614267Y2 (en) | 1994-04-13 |
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