JPS603963U - Pulse train pattern matching device for reading signals from recording media - Google Patents
Pulse train pattern matching device for reading signals from recording mediaInfo
- Publication number
- JPS603963U JPS603963U JP9484583U JP9484583U JPS603963U JP S603963 U JPS603963 U JP S603963U JP 9484583 U JP9484583 U JP 9484583U JP 9484583 U JP9484583 U JP 9484583U JP S603963 U JPS603963 U JP S603963U
- Authority
- JP
- Japan
- Prior art keywords
- matching device
- pulse train
- pattern matching
- comparator
- output
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
- Moving Of The Head To Find And Align With The Track (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案に係るパルス列ノ”マターン照合装置
の一実施例を示す電気的ブロック図、第２図は同実施例
の動作例を示す要部信号波形図、第３図は同実施例の別
の動作例を示す要部信号波形図、である。
１・・・読み書きヘッド、２・・・増幅器、３・・・比
較器、４・・・同期発振器（ＰＬＬ）、５・・・サンプ
リングゲート回路、６・・・サンプリングパルス作成回
路、７・・・直列入力並列出力シフトレジスタ、８・・
・パターンＲＯＭ、９・・・出力ゲート。Fig. 1 is an electrical block diagram showing an embodiment of the pulse train pattern matching device according to this invention, Fig. 2 is a main signal waveform diagram showing an example of the operation of the same embodiment, and Fig. 3 is the same embodiment. 1 is a main part signal waveform diagram showing another operation example of 1. Read/write head, 2. Amplifier, 3. Comparator, 4. Synchronous oscillator (PLL), 5. Sampling gate circuit, 6... Sampling pulse generation circuit, 7... Series input parallel output shift register, 8...
・Pattern ROM, 9...Output gate.
Claims (1)
媒体から該基準信号を読み取る手段と、読み取られた信
号のピークレベルが所定基準レベル以上のときパルスを
出力する比較器と、比較器から出力されたパルス列デー
タを並列データに変換するシリアル／パラレル変換回路
と、変換された並列データを入力し、予め記憶したパタ
ーンデータと照合する記憶回路とを具えるパルス列パタ
ーン照合装置。 ２ 前記シリアル／パラレル変換回路は、前記比較器の
出力パルスに同期して特定間隔のクロックパルスを発振
する同期発振器と、前記比較器の出力パルス列を前記ク
ロックパルスに従って逐次入力しシフトする直列入力並
列出力型のシフトレジスタとを具える実用新案登録請求
の範囲第１項記載のパルス列パターン照合装置。[Claims for Utility Model Registration] 1. A means for reading a reference signal for inspection from a recording medium on which a test reference signal is written in a predetermined pattern, and outputting a pulse when the peak level of the read signal is equal to or higher than the predetermined reference level. a serial/parallel conversion circuit that converts the pulse string data output from the comparator into parallel data, and a storage circuit that inputs the converted parallel data and compares it with pre-stored pattern data. Pattern matching device. 2. The serial/parallel conversion circuit includes a synchronous oscillator that oscillates clock pulses at specific intervals in synchronization with the output pulses of the comparator, and a serial input/parallel converter that sequentially inputs and shifts the output pulse train of the comparator in accordance with the clock pulses. A pulse train pattern matching device according to claim 1, comprising an output type shift register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9484583U JPS603963U (en) | 1983-06-22 | 1983-06-22 | Pulse train pattern matching device for reading signals from recording media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9484583U JPS603963U (en) | 1983-06-22 | 1983-06-22 | Pulse train pattern matching device for reading signals from recording media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS603963U true JPS603963U (en) | 1985-01-12 |
Family
ID=30226809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9484583U Pending JPS603963U (en) | 1983-06-22 | 1983-06-22 | Pulse train pattern matching device for reading signals from recording media |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603963U (en) |
-
1983
- 1983-06-22 JP JP9484583U patent/JPS603963U/en active Pending
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