JPH01159267U - - Google Patents
Info
- Publication number
- JPH01159267U JPH01159267U JP5318788U JP5318788U JPH01159267U JP H01159267 U JPH01159267 U JP H01159267U JP 5318788 U JP5318788 U JP 5318788U JP 5318788 U JP5318788 U JP 5318788U JP H01159267 U JPH01159267 U JP H01159267U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- memory
- signal line
- hda
- defect information
- 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
- 230000007547 defect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
第１図は、本考案の磁気デイスク装置のヘツド
デイスク組立体の一実施例の構成を示す図、第２
図ａ，ｂは、第１図中の印刷配線板２の平面図及
び側面図、第３図は、本考案の磁気デイスク装置
とデイスク媒体欠陥を検出するテスタとの接続を
示す図である。
１……ヘツド・デイスク・アツセンブリ、２…
…印刷配線板、３……メモリーＩＣ、４……信号
線、５……書き込み読み出し用磁気ヘツド、６…
…デイスク媒体、７……磁気デイスク装置、８…
…メモリーＩＣ書き込み読み出し回路、９……書
き込み読み出し制御回路、１０……デイスク媒体
欠陥箇所判定テスタ、１０１……書き込み命令及
び書き込みデータ伝達信号線、１０２……読み出
し命令及び読み出しデータ伝達信号線、１０３…
…書き込み信号線、１０４……読み出し信号線、
１０５……メモリーＩＣ書き込み信号線、１０６
……メモリーＩＣ読み出し信号線。
FIG. 1 is a diagram showing the structure of an embodiment of a head disk assembly of a magnetic disk device of the present invention, and FIG.
Figures a and b are a plan view and a side view of the printed wiring board 2 in Figure 1, and Figure 3 is a diagram showing the connection between the magnetic disk device of the present invention and a tester for detecting disk medium defects. 1...Head disk assembly, 2...
...Printed wiring board, 3...Memory IC, 4...Signal line, 5...Magnetic head for writing and reading, 6...
...Disk medium, 7...Magnetic disk device, 8...
...Memory IC write/read circuit, 9...Write/read control circuit, 10...Disk medium defect location determination tester, 101...Write command and write data transmission signal line, 102...Read command and read data transmission signal line, 103 …
...Write signal line, 104...Read signal line,
105...Memory IC write signal line, 106
...Memory IC read signal line.
Claims (1)
立体（以降ＨＤＡと略す。）の内部に設けられ、
前記デイスク板上に必ず存在するデイスク面書き
込み読み出し不能領域を、デイスク媒体欠陥情報
として記憶するメモリーＩＣと、前記メモリーＩ
Ｃに前記デイスク媒体欠陥情報を書き込む手段と
、前記メモリーＩＣに記憶されている前記情報を
前記ＨＤＡ外部に送出する信号線とを有すること
を特徴とする磁気デイスク装置。 Provided inside a head disk assembly (hereinafter abbreviated as HDA) having a plurality of disk plates,
a memory IC for storing a disk surface write/read unreadable area that always exists on the disk board as disk medium defect information; and the memory IC.
A magnetic disk device comprising means for writing the disk medium defect information into the memory IC, and a signal line for transmitting the information stored in the memory IC to the outside of the HDA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5318788U JPH01159267U (en) | 1988-04-19 | 1988-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5318788U JPH01159267U (en) | 1988-04-19 | 1988-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159267U true JPH01159267U (en) | 1989-11-02 |
Family
ID=31279181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5318788U Pending JPH01159267U (en) | 1988-04-19 | 1988-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159267U (en) |
-
1988
- 1988-04-19 JP JP5318788U patent/JPH01159267U/ja active Pending
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