JPS63184462U - - Google Patents
Info
- Publication number
- JPS63184462U JPS63184462U JP7297287U JP7297287U JPS63184462U JP S63184462 U JPS63184462 U JP S63184462U JP 7297287 U JP7297287 U JP 7297287U JP 7297287 U JP7297287 U JP 7297287U JP S63184462 U JPS63184462 U JP S63184462U
- Authority
- JP
- Japan
- Prior art keywords
- dolby
- discriminating
- head
- audio
- 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 3
- 238000010586 diagram Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の一実施例のブロツクダイアグ
ラムである。
１……バイアス発振回路、２……ローパスフイ
ルター、３……判別信号発生装置、４……判別信
号検出装置、５……ドルビー回路、６……ミユー
ト回路、７……映像検出回路。
FIG. 1 is a block diagram of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Bias oscillation circuit, 2...Low pass filter, 3...Discrimination signal generator, 4...Discrimination signal detection device, 5...Dolby circuit, 6...Mute circuit, 7...Video detection circuit.
Claims (1)
速度制御信号及び映像信号有無検出装置を有する
ＶＴＲ機器に於て、記録開始と終了時にドルビー
有無判別信号を音声消去ヘツドにより記録し、再
生時に音声録再ヘツドにて出力される信号の中か
ら判別信号を区別する回路を設けたことを特徴と
するドルビー使用有無判別回路。 In a VTR device that has a Dolby device, an audio erasing head, a recording/playback head, a speed control signal, and a video signal presence/absence detection device, the audio erasing head records a Dolby presence/absence determination signal at the start and end of recording, and the audio is replayed during playback. 1. A Dolby use/non-use discriminating circuit, comprising a circuit for discriminating a discriminating signal from signals output from a head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297287U JPS63184462U (en) | 1987-05-18 | 1987-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297287U JPS63184462U (en) | 1987-05-18 | 1987-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63184462U true JPS63184462U (en) | 1988-11-28 |
Family
ID=30916894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7297287U Pending JPS63184462U (en) | 1987-05-18 | 1987-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63184462U (en) |
-
1987
- 1987-05-18 JP JP7297287U patent/JPS63184462U/ja active Pending
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