JPS6077035U - Recording speed discrimination circuit - Google Patents
Recording speed discrimination circuitInfo
- Publication number
- JPS6077035U JPS6077035U JP16994783U JP16994783U JPS6077035U JP S6077035 U JPS6077035 U JP S6077035U JP 16994783 U JP16994783 U JP 16994783U JP 16994783 U JP16994783 U JP 16994783U JP S6077035 U JPS6077035 U JP S6077035U
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- signal
- recording speed
- discrimination
- comparison section
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の判別回路の回路ブロック図、第２図、第
３図は異なる記録速度における第１図回路の要部波形図
、第４図、第５図は夫々異なる誤判別の状態を示す要部
波形図、第６図は本考案実施例の回路ブロック図、第７
図、第８図は第６図回路の異なる記録モードにおける要
部波形図、第９図は回路１主の要部波形図である。
主な図番の説明、８・・・比較部、５・・・カウンタ、
′９・・・判別保持部（Ｄ型フリップフロップ
）、１２・・・ＲＳフリップフロップ、１１・・・第２
パルス作成回路、１４・・・ＡＮＤゲート、１３・・・
ミュート手段。Figure 1 is a circuit block diagram of a conventional discrimination circuit, Figures 2 and 3 are waveform diagrams of the main parts of the circuit in Figure 1 at different recording speeds, and Figures 4 and 5 show different states of misjudgment. Figure 6 is a circuit block diagram of the embodiment of the present invention, Figure 7 is a waveform diagram of the main parts shown.
8 is a waveform diagram of the main part of the circuit shown in FIG. 6 in different recording modes, and FIG. 9 is a waveform diagram of the main part of the circuit 1. Explanation of main figure numbers, 8... Comparison section, 5... Counter,
'9... Discrimination holding unit (D type flip-flop), 12... RS flip-flop, 11... Second
Pulse creation circuit, 14...AND gate, 13...
Mute means.
Claims (1)
号に関連する信号にてリセットされるカウンタを含む比
較部と、該比較部からの出力を受けて記録速度の判別保
持を為す判別保持部と、テープ速度の低下に関連する制
御信号からテープ走行再開後の最初の再生コントロール
信号までの期間を指定するマスク信号の発生手段と、前
記制御信号とマスク信号に基づき前記判別保持部の状態
変化を禁止する手段と、前記制御信号に基づき前記比較
部を実質的な初期状態に設定する手段とを備え、前記最
初の再生コントロール信号から新たな判別動作を開始せ
しめることを特徴とする記録速度判別回路。a comparison section including a counter that receives a signal related to the FG double signal and is reset by a signal related to the playback control signal; a discrimination holding section that receives the output from the comparison section and discriminates and holds the recording speed; and a tape. generating means for a mask signal specifying a period from a control signal related to a speed reduction to a first playback control signal after resuming tape running; and prohibiting a change in the state of the discrimination holding section based on the control signal and the mask signal. and means for setting the comparison section to a substantially initial state based on the control signal, and starting a new discrimination operation from the first reproduction control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16994783U JPS6077035U (en) | 1983-10-31 | 1983-10-31 | Recording speed discrimination circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16994783U JPS6077035U (en) | 1983-10-31 | 1983-10-31 | Recording speed discrimination circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6077035U true JPS6077035U (en) | 1985-05-29 |
Family
ID=30371142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16994783U Pending JPS6077035U (en) | 1983-10-31 | 1983-10-31 | Recording speed discrimination circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077035U (en) |
-
1983
- 1983-10-31 JP JP16994783U patent/JPS6077035U/en active Pending
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