JPH0195876U - - Google Patents
Info
- Publication number
- JPH0195876U JPH0195876U JP19310787U JP19310787U JPH0195876U JP H0195876 U JPH0195876 U JP H0195876U JP 19310787 U JP19310787 U JP 19310787U JP 19310787 U JP19310787 U JP 19310787U JP H0195876 U JPH0195876 U JP H0195876U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video camera
- transmitter
- generation circuit
- video
- 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
- 230000005236 sound signal Effects 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
Description
第１図はこの考案のビデオカメラの送信機のク
レーム対応図、第２図は、この考案の１実施例を
示す制御ブロツク図、第３図は、オーデイオ信号
と、これに重畳する信号との周波数スペクトラム
図、第４図Ａは第２図における制御部より出力さ
れる制御信号のタイムチヤート、第４図Ｂは、第
２図におけるＲＦモジユレータに入力されるオー
デイオ信号の波形を示す図、第５図は、この考案
の送信機に適した受信機を内蔵するビデオテープ
レコーダのブロツク図、第６図は、従来のビデオ
カメラと送信機とのブロツク図である。
１……カメラヘツド、２……ビデオエンコーダ
、３……同期信号発生回路、４……マイクロフオ
ン、５……マイクアンプ、６……２逓倍回路、７
……バンドパスフイルタ、８……加算器、９……
スイツチ、１０……ＲＦモジユレータ、１１……
ＲＦアンプ、１２……アンテナ、１３……制御部
、１４……録画スタート・停止スイツチ、１００
′……ビデオカメラ、２００′……送信機。
Fig. 1 is a diagram corresponding to claims of the video camera transmitter of this invention, Fig. 2 is a control block diagram showing one embodiment of this invention, and Fig. 3 is a diagram showing the relationship between an audio signal and a signal superimposed thereon. 4B is a diagram showing the waveform of the audio signal input to the RF modulator in FIG. FIG. 5 is a block diagram of a video tape recorder incorporating a receiver suitable for the transmitter of this invention, and FIG. 6 is a block diagram of a conventional video camera and transmitter. DESCRIPTION OF SYMBOLS 1...Camera head, 2...Video encoder, 3...Synchronization signal generation circuit, 4...Microphone, 5...Mic amplifier, 6...2 multiplication circuit, 7
...bandpass filter, 8...adder, 9...
Switch, 10...RF modulator, 11...
RF amplifier, 12...Antenna, 13...Control unit, 14...Recording start/stop switch, 100
'...Video camera, 200'...Transmitter.
Claims (1)
オン等からのオーデイオ信号とをＲＦテレビジヨ
ン信号に変調して送信するビデオカメラの送信機
において、所定の周波数の信号を作成する信号作
成回路と、信号作成回路で作成された信号を、該
ビデオカメラの動作モードに対応する所定のタイ
ミングでもつて、前記オーデイオ信号に重畳させ
る信号重畳手段とを備えたことを特徴とするビデ
オカメラの送信機。 In a video camera transmitter that modulates a video signal from a video camera and an audio signal from a microphone or the like into an RF television signal and transmits the signal, there is a signal generation circuit that generates a signal of a predetermined frequency, and a signal generation circuit. A transmitter for a video camera, comprising: signal superimposition means for superimposing the signal created by the above on the audio signal at a predetermined timing corresponding to the operation mode of the video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19310787U JPH0195876U (en) | 1987-12-16 | 1987-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19310787U JPH0195876U (en) | 1987-12-16 | 1987-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195876U true JPH0195876U (en) | 1989-06-26 |
Family
ID=31483925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19310787U Pending JPH0195876U (en) | 1987-12-16 | 1987-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195876U (en) |
-
1987
- 1987-12-16 JP JP19310787U patent/JPH0195876U/ja active Pending
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