JPH0398765U - - Google Patents
Info
- Publication number
- JPH0398765U JPH0398765U JP521390U JP521390U JPH0398765U JP H0398765 U JPH0398765 U JP H0398765U JP 521390 U JP521390 U JP 521390U JP 521390 U JP521390 U JP 521390U JP H0398765 U JPH0398765 U JP H0398765U
- Authority
- JP
- Japan
- Prior art keywords
- head
- section
- signal
- detection section
- digital signal
- 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 5
- 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セル等でなる光導電部、１３……
電極、１４……Ｃｄｓセル上の光跡、２２……論
理積処理部、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, and 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 section consisting of a Cds cell etc., 13...
Electrode, 14... Light trace on Cds cell, 22... Logical product processing section, 23... Storage section, 24... Discrimination section,
25...Head drive control section.
Claims (1)
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、検出部よりの信号
を論理積処理しデジタル信号を出力する論理積処
理部と、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、論理積処理部よりの信号を
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 consisting of a photoconductive section that forms an encoded pattern, a light emitting section that moves together with the head and emits a strip of light toward the detection section, and an AND operation that performs AND processing on the signals from the detection section and outputs a digital signal. A processing unit, a storage unit that stores position data corresponding to the digital signal, and a determination unit that compares the signal from the logical product processing unit with the position data stored in the storage unit, determines and outputs matching data. What is claimed is: 1. A head position detection device characterized in that the head is configured to drive and control the head based on a signal from a discriminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP521390U JPH0398765U (en) | 1990-01-23 | 1990-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP521390U JPH0398765U (en) | 1990-01-23 | 1990-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0398765U true JPH0398765U (en) | 1991-10-15 |
Family
ID=31508929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP521390U Pending JPH0398765U (en) | 1990-01-23 | 1990-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0398765U (en) |
-
1990
- 1990-01-23 JP JP521390U patent/JPH0398765U/ja active Pending
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