JPH02149101U - - Google Patents
Info
- Publication number
- JPH02149101U JPH02149101U JP5853489U JP5853489U JPH02149101U JP H02149101 U JPH02149101 U JP H02149101U JP 5853489 U JP5853489 U JP 5853489U JP 5853489 U JP5853489 U JP 5853489U JP H02149101 U JPH02149101 U JP H02149101U
- Authority
- JP
- Japan
- Prior art keywords
- audio
- signal
- carrier wave
- transmitted
- signals
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 9
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の多層記録ビデオテープレコー
ダの記録系の電気的構成を示すブロツク線図、第
２図は同装置の各部の信号波形図、第３図は従来
の多層記録ビデオテープレコーダの記録系の電気
的構成を示すブロツク線図である。
１…左音声入力端子、２…右音声入力端子、３
…映像信号入力端子、４…左切換スイツチ、５…
左信号発生回路、６…左ＦＭ変調器、７…左無音
期間検出回路、８…記録アンプ、９…右切換スイ
ツチ、１０…右信号発生回路、１１…右無音期間
検出回路、１２…右ＦＭ変調器、１３…音声専用
ヘツド、１４…映像信号処理回路、１５…映像専
用ヘツド、１６…磁気テープ。
Fig. 1 is a block diagram showing the electrical configuration of the recording system of the multilayer video tape recorder of the present invention, Fig. 2 is a signal waveform diagram of each part of the device, and Fig. 3 is a diagram of the conventional multilayer video tape recorder. FIG. 3 is a block diagram showing the electrical configuration of the recording system. 1...Left audio input terminal, 2...Right audio input terminal, 3
...Video signal input terminal, 4...Left selector switch, 5...
Left signal generation circuit, 6... Left FM modulator, 7... Left silent period detection circuit, 8... Recording amplifier, 9... Right selector switch, 10... Right signal generation circuit, 11... Right silent period detection circuit, 12... Right FM Modulator, 13... Head dedicated to audio, 14... Video signal processing circuit, 15... Head dedicated to video, 16... Magnetic tape.
Claims (1)
音声搬送波及び第２音声信号に従つてＦＭ変調さ
れた第２ＦＭ音声搬送波と、輝度信号系及び色信
号系に応じて適宜の処理がなされた映像信号とが
記録媒体の同一トラツク上に記録されるとともに
、この記録された第１ＦＭ音声搬送波及び第２Ｆ
Ｍ音声搬送波と映像信号との再生を行う多層記録
ビデオテープレコーダにおいて、 前記第１音声信号及び第２音声信号を前記記録
媒体に記録するとき、 第１及び第２音声信号の送出されていない期間
を検出する第１及び第２無音期間検出回路と、 可聴周波数以上の周波数の信号を発生する第１
及び第２信号発生回路と、 前記第１及び第２無音期間検出回路により検出
された第１及び第２音声信号の送出されていない
期間の間、第１及び第２音声信号に代わつて前記
第１及び第２信号発生回路により発生された信号
の送出を行う第１及び第２切換回路とを備え、 第１及び第２音声信号の送出されていない期間
の間は、前記第１及び第２信号発生回路により発
生された信号に従つてＦＭ変調された第１ＦＭ音
声搬送波及び第２ＦＭ音声搬送波を記録媒体の記
録トラツク上に記録するようになされたことを特
徴とする多層記録ビデオテープレコーダ。[Claims for Utility Model Registration] First FM modulated according to the first audio signal
A second FM audio carrier wave that is FM-modulated according to the audio carrier wave and the second audio signal, and a video signal that has been appropriately processed according to the luminance signal system and the color signal system are recorded on the same track of the recording medium. At the same time, this recorded first FM audio carrier wave and second FM audio carrier wave
In a multilayer video tape recorder that reproduces M audio carrier waves and video signals, when recording the first audio signal and the second audio signal on the recording medium, a period during which the first and second audio signals are not transmitted. first and second silent period detection circuits that detect
and a second signal generation circuit, and during a period in which the first and second audio signals detected by the first and second silent period detection circuits are not being transmitted, the second audio signal is transmitted in place of the first and second audio signals. and first and second switching circuits that transmit signals generated by the first and second signal generation circuits, and during a period when the first and second audio signals are not transmitted, the first and second switching circuits A multilayer video tape recorder, characterized in that it records a first FM audio carrier wave and a second FM audio carrier wave, which are FM modulated in accordance with a signal generated by a signal generating circuit, on a recording track of a recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5853489U JPH02149101U (en) | 1989-05-19 | 1989-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5853489U JPH02149101U (en) | 1989-05-19 | 1989-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02149101U true JPH02149101U (en) | 1990-12-19 |
Family
ID=31584232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5853489U Pending JPH02149101U (en) | 1989-05-19 | 1989-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149101U (en) |
-
1989
- 1989-05-19 JP JP5853489U patent/JPH02149101U/ja active Pending
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