JPH0398764U - - Google Patents
Info
- Publication number
- JPH0398764U JPH0398764U JP521290U JP521290U JPH0398764U JP H0398764 U JPH0398764 U JP H0398764U JP 521290 U JP521290 U JP 521290U JP 521290 U JP521290 U JP 521290U JP H0398764 U JPH0398764 U JP H0398764U
- Authority
- JP
- Japan
- Prior art keywords
- section
- head
- signal
- discriminating
- detecting 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図は本考案によるヘツド位置検出装置の一
実施例の一部破断面を含む要部斜視図、第２図は
同ヘツド位置検出装置の検出部の要部平面図、第
３図は同ヘツド位置検出装置の一実施例の要部ブ
ロツク図、第４図は従来のヘツド位置検出装置の
概念を示す部分平面図である。
図中、１……光デイスク、２……ヘツド、３…
…発光部、４，２１……検出部、１１……基板、
１２……Ｃｄｓセル等の光導電部、１３……抵抗
体でなる電極、１４……電極、１５……Ｃｄｓセ
ル上の光跡、２２……Ａ／Ｄ変換部、２３……記
憶部、２４……判別部、２５……ヘツド駆動制御
部である。
FIG. 1 is a perspective view of a main part including a partially broken surface of an embodiment of a head position detecting device according to the present invention, FIG. 2 is a plan view of a main part of a detecting section of the same head position detecting device, and FIG. FIG. 4 is a block diagram of a main part of an embodiment of a head position detecting device. FIG. 4 is a partial plan view showing the concept of a conventional head position detecting device. In the figure, 1...optical disk, 2...head, 3...
...Light emitting section, 4,21...Detection section, 11...Substrate,
12... Photoconductive part of Cds cell etc., 13... Electrode made of resistor, 14... Electrode, 15... Light trace on Cds cell, 22... A/D conversion part, 23... Storage part, 24...Discrimination unit, 25...Head drive control unit.
Claims (1)
極の少なくとも一方を抵抗体とした検出部と、ヘ
ツドと共に動き前記検出部に向けて帯状の光を発
射する発光部と、検出部よりのアナログの信号を
デジタル信号に変換するＡ／Ｄ変換部と、前記デ
ジタル信号に対応する位置データを記憶する記憶
部と、Ａ／Ｄ変換部よりの信号を記憶部に記憶の
位置データと比較し、一致するデータを判別し出
力する判別部とでなり、判別部よりの信号に基づ
きヘツドを駆動制御するように構成したことを特
徴とするヘツド位置検出装置。 A detection section that forms a photoconductive section and has electrodes at both ends, with at least one of the electrodes being a resistor; a light emitting section that moves together with the head and emits a strip of light toward the detection section; an A/D converter that converts an analog signal into a digital signal, a storage that stores position data corresponding to the digital signal, and a signal from the A/D converter that is compared with the position data stored in the storage. 1. A head position detecting device comprising: a discriminating section for discriminating and outputting matching data; and a head position detecting device configured to drive and control the head based on a signal from the discriminating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP521290U JPH0398764U (en) | 1990-01-23 | 1990-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP521290U JPH0398764U (en) | 1990-01-23 | 1990-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0398764U true JPH0398764U (en) | 1991-10-15 |
Family
ID=31508928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP521290U Pending JPH0398764U (en) | 1990-01-23 | 1990-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0398764U (en) |
-
1990
- 1990-01-23 JP JP521290U patent/JPH0398764U/ja active Pending