JPS5986013U - magnetic recording and reproducing device - Google Patents
magnetic recording and reproducing deviceInfo
- Publication number
- JPS5986013U JPS5986013U JP18342782U JP18342782U JPS5986013U JP S5986013 U JPS5986013 U JP S5986013U JP 18342782 U JP18342782 U JP 18342782U JP 18342782 U JP18342782 U JP 18342782U JP S5986013 U JPS5986013 U JP S5986013U
- Authority
- JP
- Japan
- Prior art keywords
- output
- pass filter
- magnetic recording
- frequency
- reproducing device
- 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
- Television Signal Processing For Recording (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図は従来の磁気記録再生装置における再生系の概略
ブロック図である。第２図はこの考案の一実施例の概略
ブロック図である。第３図は第２図の各部の波形図であ
る。
図において、８は自動振幅調整回路、９は高域フィルタ
、１０は位相補正回路、１１は低域フィルタ、１２は可
変利得増幅回路、１３は検波回路、１４は加算回路、１
５は制限増幅回路を示す。FIG. 1 is a schematic block diagram of a reproducing system in a conventional magnetic recording/reproducing apparatus. FIG. 2 is a schematic block diagram of an embodiment of this invention. FIG. 3 is a waveform diagram of each part of FIG. 2. In the figure, 8 is an automatic amplitude adjustment circuit, 9 is a high-pass filter, 10 is a phase correction circuit, 11 is a low-pass filter, 12 is a variable gain amplifier circuit, 13 is a detection circuit, 14 is an adder circuit, 1
5 indicates a limiting amplifier circuit.
Claims (1)
号を再生する磁気記録再生装置において、前記周波数変
調された再生信号の高域周波数成分をろ波して取出す高
域フィルタ手段、前記高域フィルタ手段出力の振幅を検
波する検波手段、 前記周波数変調された再生信号の低域周波数成分をろ波
して取出す低域フィルタ手段、前記低域フィルタ手段出
力を受け、前記検波子役出力！巳基づいてその利得を可
変する可変利得増幅手段、 前記低域フィルタ手段出力と前記可変利得増幅手段出力
を合成する合成手段、および前記合成手段の出力合成信
号のレベル変動を除去する制限手段を備えたことを特徴
とする、磁気記録再生装置。 （２）前記検波手段は、両波整流面路を含んで構成され
、それによって応答速度を向上させた、実用新案登録請
求の範囲第１項記載の磁気記録再生装置。[Claims for Utility Model Registration] To (1) In a magnetic recording and reproducing device that reproduces a frequency-modulated signal recorded on a recording medium, the high frequency component of the frequency-modulated reproduced signal is filtered. a high-pass filter means for extracting the output of the high-pass filter means; a detection means for detecting the amplitude of the output of the high-pass filter means; a low-pass filter means for filtering and extracting the low frequency component of the frequency-modulated reproduced signal; Receiving, said detection child output! variable gain amplifying means for varying the gain based on the output of the variable gain amplifying means; combining means for combining the output of the low-pass filter means and the output of the variable gain amplifying means; and limiting means for removing level fluctuations in the output composite signal of the combining means. A magnetic recording/reproducing device characterized by: (2) The magnetic recording and reproducing apparatus according to claim 1, wherein the detection means includes a dual-wave rectifying surface path, thereby improving response speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18342782U JPS5986013U (en) | 1982-12-01 | 1982-12-01 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18342782U JPS5986013U (en) | 1982-12-01 | 1982-12-01 | magnetic recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5986013U true JPS5986013U (en) | 1984-06-11 |
Family
ID=30396981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18342782U Pending JPS5986013U (en) | 1982-12-01 | 1982-12-01 | magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5986013U (en) |
-
1982
- 1982-12-01 JP JP18342782U patent/JPS5986013U/en active Pending
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