JPS62168126U - - Google Patents
Info
- Publication number
- JPS62168126U JPS62168126U JP5655186U JP5655186U JPS62168126U JP S62168126 U JPS62168126 U JP S62168126U JP 5655186 U JP5655186 U JP 5655186U JP 5655186 U JP5655186 U JP 5655186U JP S62168126 U JPS62168126 U JP S62168126U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- start flag
- recording
- analog 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 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
第１図はこの考案のＤＡＴ記録再生装置におけ
るスタートフラグ信号自動記録装置のブロツク図
、第２図はこの考案の主要構成部分をマイクロコ
ンピユータにした場合のそのフローチヤートを示
す図、第３図は各回路部分の信号およびそのレベ
ルを示すものである。
１…増幅回路、２…ローパスフイルタ、３…Ａ
／Ｄ変換回路、４…信号処理回路、５…磁気ヘツ
ド、６…レベル検出回路、７…制御回路、８…ス
イツチング回路、９…スタートフラグ信号発生回
路、１０…磁気テープ、Ｓ２…ローパスフイルタ
の出力信号、Ｓ６…レベル検出回路の出力信号、
Ｓ９…スタートフラグ信号発生回路の出力信号（
スタートフラグ信号）。
Fig. 1 is a block diagram of the start flag signal automatic recording device in the DAT recording/reproducing device of this invention, Fig. 2 is a flowchart when the main component of this invention is a microcomputer, and Fig. 3 is It shows the signals of each circuit part and their levels. 1...Amplification circuit, 2...Low pass filter, 3...A
/D conversion circuit, 4...Signal processing circuit, 5...Magnetic head, 6...Level detection circuit, 7...Control circuit, 8...Switching circuit, 9...Start flag signal generation circuit, 10...Magnetic tape, S2 ...Low pass filter output signal of S6 ... level detection circuit output signal,
S9 ...Output signal of the start flag signal generation circuit (
start flag signal).
Claims (1)
回路で所定レベルに増幅されたアナログ信号の高
域周波数成分の除去を行なうローパスフイルタと
、このローパスフイルタを通過したアナログ信号
をデイジタル信号に変換するＡ／Ｄ変換回路と、
このＡ／Ｄ変換回路によつて変換されたデイジタ
ル信号とスタートフラグ信号などの信号処理回路
と、この信号処理回路によつて処理されたデイジ
タル信号が供給される磁気ヘツドとよりなるＤＡ
Ｔ記録再生装置におけるスタートフラグ信号自動
記録装置において、前記アナログ信号のレベルを
検出するレベル検出回路と、このレベル検出回路
によつて無信号などの所定レベル以下の信号を検
出したとき後述のスイツチング回路をオンにする
制御回路と、この制御回路によつてオン、オフ制
御されるスイツチング回路と、このスイツチング
回路のオンによつてスタートフラグ信号を発生し
てそれを前記信号処理回路に供給するスタートフ
ラグ信号発生回路を付加してなるＤＡＴ記録再生
装置におけるスタートフラグ信号自動記録装置。 An amplifier circuit that amplifies an analog signal, a low-pass filter that removes high frequency components of the analog signal amplified to a predetermined level by the amplifier circuit, and an A/C converter that converts the analog signal that has passed through the low-pass filter into a digital signal. D conversion circuit;
A DA consisting of a signal processing circuit for digital signals converted by this A/D conversion circuit, a start flag signal, etc., and a magnetic head to which the digital signals processed by this signal processing circuit are supplied.
A start flag signal automatic recording device in a T recording and reproducing device includes a level detection circuit that detects the level of the analog signal, and a switching circuit that will be described later when the level detection circuit detects a signal below a predetermined level such as no signal. a control circuit that turns on a switching circuit; a switching circuit that is turned on and off by this control circuit; and a start flag that generates a start flag signal when the switching circuit turns on and supplies it to the signal processing circuit. An automatic start flag signal recording device for a DAT recording and reproducing device, which is provided with a signal generation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5655186U JPS62168126U (en) | 1986-04-15 | 1986-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5655186U JPS62168126U (en) | 1986-04-15 | 1986-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62168126U true JPS62168126U (en) | 1987-10-24 |
Family
ID=30885459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5655186U Pending JPS62168126U (en) | 1986-04-15 | 1986-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168126U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60177459A (en) * | 1984-02-24 | 1985-09-11 | Hitachi Ltd | Pcm recorder of fixed head type |
-
1986
- 1986-04-15 JP JP5655186U patent/JPS62168126U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60177459A (en) * | 1984-02-24 | 1985-09-11 | Hitachi Ltd | Pcm recorder of fixed head type |
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