JPS5884682U - signal detection circuit - Google Patents
signal detection circuitInfo
- Publication number
- JPS5884682U JPS5884682U JP17974281U JP17974281U JPS5884682U JP S5884682 U JPS5884682 U JP S5884682U JP 17974281 U JP17974281 U JP 17974281U JP 17974281 U JP17974281 U JP 17974281U JP S5884682 U JPS5884682 U JP S5884682U
- Authority
- JP
- Japan
- Prior art keywords
- clock
- circuit
- signals
- signal
- generates
- 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
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、本考案の回路ブロック図、第２図はタイムチ
ャート図である。
１・・・・・・磁気テープ、２・・・・・・再生ヘッド
、３・・・・・・アンプ、４・・・・・・波形整形回路
、５．７．１１・・・・・・フリップ７０ツブ、６，１
５．１９・・・・・・モノマルチ、８・・・・・・クロ
ックパルス発生回路、９．１２・・・・・・アンドゲー
ト、１０．１３・・・・・・カウンタ、１４゜１８・・
・・・・比較一致回路、１６・・・・・・シフトレジス
タ、１７・・・・・・メモリ回路。FIG. 1 is a circuit block diagram of the present invention, and FIG. 2 is a time chart. 1... Magnetic tape, 2... Playback head, 3... Amplifier, 4... Waveform shaping circuit, 5.7.11...・Flip 70 knob, 6,1
5.19...Monomulti, 8...Clock pulse generation circuit, 9.12...And gate, 10.13...Counter, 14°18・・・
... Comparison match circuit, 16 ... Shift register, 17 ... Memory circuit.
Claims (1)
のにおいて、検出信号の最初の信号と２個目の信号の間
だけ反転するフリップフロップと前記フリップフロップ
の反転時間を計数するクロックパルスの発生回路と、前
記クロックパルスの数を計数するカウンタと、前記カウ
ンタで計数したクロックパルスと同じ数のクロックパル
スを検出したときに第２のクロックパルスを発生する比
較一致回路と、前記第２のクロックパルスをクロック信
号に利用して情報信号を転送するシフトレジスタと、検
出したい信号をメモリするメモリ回路と、前記シフトレ
ジスタと前記メモリ回路の信号とが一致したときに駆動
パルスを発生する第２の比較一致回路とを備え、再生時
に信号のサーチスピードが変わったときにも前記情報信
号を検出して、駆動パルスを発生することを特徴とした
信号検出回路。In an apparatus for reproducing and detecting information signals recorded on a magnetic tape, a flip-flop inverts only between the first and second detection signals, and generation of a clock pulse for counting the inversion time of the flip-flop. a circuit, a counter that counts the number of clock pulses, a comparison matching circuit that generates a second clock pulse when detecting the same number of clock pulses as the clock pulses counted by the counter, and a second clock pulse. A shift register that transfers information signals using pulses as clock signals, a memory circuit that stores a signal to be detected, and a second drive pulse that generates a drive pulse when the signals of the shift register and the memory circuit match. What is claimed is: 1. A signal detection circuit comprising: a comparison and coincidence circuit; the signal detection circuit detects the information signal and generates a drive pulse even when a signal search speed changes during reproduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17974281U JPS5884682U (en) | 1981-12-02 | 1981-12-02 | signal detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17974281U JPS5884682U (en) | 1981-12-02 | 1981-12-02 | signal detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5884682U true JPS5884682U (en) | 1983-06-08 |
Family
ID=29975710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17974281U Pending JPS5884682U (en) | 1981-12-02 | 1981-12-02 | signal detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884682U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194905A (en) * | 1974-12-04 | 1976-08-20 |
-
1981
- 1981-12-02 JP JP17974281U patent/JPS5884682U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194905A (en) * | 1974-12-04 | 1976-08-20 |
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