JPH0328558U - - Google Patents
Info
- Publication number
- JPH0328558U JPH0328558U JP8727589U JP8727589U JPH0328558U JP H0328558 U JPH0328558 U JP H0328558U JP 8727589 U JP8727589 U JP 8727589U JP 8727589 U JP8727589 U JP 8727589U JP H0328558 U JPH0328558 U JP H0328558U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- signal output
- voltage generation
- generation circuit
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 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図および第２図はそれぞれ本考案の一実施
例のブロツク図および各信号のタイミング図であ
る。
１……フロツピイデイスク装置、２……インタ
ーフエイス回路、３……ＦＤＤコントローラ、４
……増幅回路、５……平均ピーク電圧発生回路、
６……基準電圧発生回路、７……コンパレート回
路、８……アンド回路、９……リードデータ信号
、１０……リードアナログ信号、１１……増幅さ
れたリードアナログ信号、１２……平均ピーク電
圧、１３……基準電圧、１４……ウインド信号、
１５……ノイズ信号を除去したリードデータ信号
、１６……ノイズ信号。
1 and 2 are a block diagram and a timing diagram of each signal, respectively, of an embodiment of the present invention. 1... Floppy disk device, 2... Interface circuit, 3... FDD controller, 4
...Amplification circuit, 5...Average peak voltage generation circuit,
6... Reference voltage generation circuit, 7... Comparator circuit, 8... AND circuit, 9... Read data signal, 10... Read analog signal, 11... Amplified read analog signal, 12... Average peak Voltage, 13... Reference voltage, 14... Wind signal,
15... Read data signal from which noise signal has been removed, 16... Noise signal.
Claims (1)
エイス回路と、前記フロツピイデイスク装置から
出力されるリードアナログ信号を増幅する増幅回
路と、前記増幅回路より出力されるリードアナロ
グ信号のピーク値の平均電圧を出力する平均ピー
ク電圧発生回路と、前記平均ピーク電圧発生回路
より出力される平均ピーク電圧をもとに基準電圧
を出力する基準電圧発生回路と、前記増幅回路よ
り出力されるリードアナログ信号を前記基準電圧
発生回路から出力される基準電圧と比較するコン
パレート回路と、前記コンパレート回路より出力
されるウインド信号と前記インターフエイス回路
より出力されるリードデータ信号の論理積をとる
アンド回路とを含むことを特徴とするフロツピイ
デイスク装置のデータリード回路。 An interface circuit that connects the floppy disk device, an amplifier circuit that amplifies the read analog signal output from the floppy disk device, and an average voltage of the peak value of the read analog signal output from the amplifier circuit. an average peak voltage generation circuit to output, a reference voltage generation circuit to output a reference voltage based on the average peak voltage output from the average peak voltage generation circuit, and a read analog signal output from the amplifier circuit to the reference voltage generation circuit; It includes a comparator circuit that compares with a reference voltage output from the voltage generation circuit, and an AND circuit that takes a logical product of the window signal output from the comparator circuit and the read data signal output from the interface circuit. A data read circuit for a floppy disk device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8727589U JPH0328558U (en) | 1989-07-24 | 1989-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8727589U JPH0328558U (en) | 1989-07-24 | 1989-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0328558U true JPH0328558U (en) | 1991-03-22 |
Family
ID=31636927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8727589U Pending JPH0328558U (en) | 1989-07-24 | 1989-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328558U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60223072A (en) * | 1984-04-18 | 1985-11-07 | Hitachi Ltd | Magnetic data reproduction system |
-
1989
- 1989-07-24 JP JP8727589U patent/JPH0328558U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60223072A (en) * | 1984-04-18 | 1985-11-07 | Hitachi Ltd | Magnetic data reproduction system |
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