JPS6117269A - Disk device - Google Patents
Disk deviceInfo
- Publication number
- JPS6117269A JPS6117269A JP13852884A JP13852884A JPS6117269A JP S6117269 A JPS6117269 A JP S6117269A JP 13852884 A JP13852884 A JP 13852884A JP 13852884 A JP13852884 A JP 13852884A JP S6117269 A JPS6117269 A JP S6117269A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- light emitting
- emitting element
- signal
- head
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明はディスク装置に関し、特にヘッドの基準位置を
検出に用いる発光素子の電力供給にかかるディスク装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a disk device, and more particularly to a disk device that supplies power to a light emitting element used to detect a reference position of a head.
従来この種のディスク装置の多くは、第１図に示すよう
に発光素子１４と受光素子１５の間にヘッド１２と共に
移動するシャッタ１３が入ることによ）変化する受光素
子の出力信号によ）、ヘッドの基準位置全検出していた
。Conventionally, most of this type of disk device has a shutter 13 that moves together with the head 12 inserted between a light emitting element 14 and a light receiving element 15, as shown in FIG. , all reference positions of the head were detected.
このためこの従来のディスク装置は任意の時間にヘッド
の位置全検出するために発光素子１４に常に電力を供給
しておく必要がメク、消費電力が増大すると云う欠点が
あった。For this reason, this conventional disk device has the disadvantage that it is necessary to constantly supply power to the light emitting element 14 in order to detect the entire position of the head at any given time, which increases power consumption.
（発明の目的）
本発明は従来のディスク装置における欠点を除去すると
共にヘッドの位置情報検出をヘッドが移動動作を行なっ
た時のみ行ない１発光素子への電力消費を少なくしたデ
ィスク装置を提供することにある。(Object of the Invention) It is an object of the present invention to provide a disk device that eliminates the drawbacks of conventional disk devices and detects head position information only when the head moves, thereby reducing power consumption for one light emitting element. It is in.
（発明の構成）
本発明によれば、記録媒体に情報全書込み、読出しをす
るためのヘッドの位置全発光素子と受光素子により検出
する機構を有するディスク装置において、へ、ドを移動
させたときの信号によｊＤ 一定時間巾信号を得る遅延
回路と、この遅延回路の出力信号によシ発光素子への電
力供給全制御するドライバ回路と、前記発光素子に電力
が供給されている間に前記受光素子によシ検出されたヘ
ッドの位置情報をラッチするう、子回路とを含むディス
ク装置が得られる。(Structure of the Invention) According to the present invention, in a disk device having a mechanism for detecting the position of a head for writing and reading all information on a recording medium using all light-emitting elements and light-receiving elements, when the head is moved a delay circuit that obtains a constant time width signal jD according to a signal of jD; a driver circuit that completely controls the power supply to the light emitting element according to the output signal of this delay circuit; A disk device including a slave circuit for latching the head position information detected by the light receiving element is obtained.
（実施例） 次に本発明の実施例について図面を参照して説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第２図は本発明の一実施例を示す。第２図において、本
発明の一実施例は記録媒体に情報を書込み、読出しをす
るためのヘッドの位置を発光素子１０４と受光素子１０
５によフ検出する機構を有するディスク装置で、ヘッド
を移動させるときのパルス信号２０１によシ一定時間巾
のドライバ駆動信号２０２全発生させる遅延回路１０１
と、該出力信号２０２によち発光素子１０４への電力供
給を制御するドライバ回路１０２と、前記発光素子１０
４に電力が供給されている間に前記受光素子１０４によ
フ検出されたヘッドの位置情報をラッチするラッチ回路
とを含む。遅延回路１０１はへ、ド（図示せず）を移動
させるためのパルス信号２０１’ｉ受けて一定時間のド
ライバ駆動信号２０２を作る回路で、ドライバ回路１０
２は前記ドライバ駆動信号２０２によシ発光素子１０４
への供給電力２０３を制御する回路である。ラッチ回路
１０３は前記ドライバ駆動信号２０２によ９発光素子１
０４の発光タイミングを受け、発光素子が発光中に受光
素子１０５の検出信号２０４をう、チし、そのう、チ出
力信号２ｏｃｔｔ＝送出する回路でめる。このラッチ回
路１０３はたとえば、前記ドライバ駆動信号２０２を入
力し、前記遅延回路１０１より短かい遅延時間を持つ遅
延回路３０１と、該遅延回路３０１の遅延出力信号２０
５ｅ受けて受光素子の検出信号２０４をホールドするホ
ールド回路とによフ構成されている。FIG. 2 shows an embodiment of the invention. In FIG. 2, one embodiment of the present invention shows that the position of the head for writing and reading information on a recording medium is set between a light emitting element 104 and a light receiving element 10.
5, a delay circuit 101 generates a driver drive signal 202 having a constant time width in accordance with a pulse signal 201 used when moving the head.
, a driver circuit 102 that controls power supply to the light emitting element 104 by the output signal 202, and the light emitting element 10
4 includes a latch circuit that latches head position information detected by the light receiving element 104 while power is being supplied to the light receiving element 104. The delay circuit 101 is a circuit that receives a pulse signal 201'i for moving the driver (not shown) and generates a driver drive signal 202 for a certain period of time.
2 is a light emitting element 104 driven by the driver drive signal 202.
This is a circuit that controls power supply 203 to. The latch circuit 103 controls the 9 light emitting elements 1 according to the driver drive signal 202.
Upon receiving the light emission timing of 04, the light emitting element receives the detection signal 204 of the light receiving element 105 while emitting light, and the circuit sends out the output signal 2octt. For example, this latch circuit 103 inputs the driver drive signal 202 and includes a delay circuit 301 having a shorter delay time than the delay circuit 101, and a delayed output signal 20 of the delay circuit 301.
5e and a hold circuit for holding the detection signal 204 of the light receiving element.
第３図は本実施例におけるタイムチャートを示す。第３
図において１本笑施例に於ける各部の動作を説明すると
、パルス信号２０１により、遅延回路１０１が起動され
ドライバ駆動信号２０２を出力する。ドライバ回路１０
２はこれを受は発光素子１０４に供給電力２０３を出力
する。一方、ラッチ回路１０３の遅延回路３０１は前記
ドライバ駆動信号２０２の前縁を受は遅延出力信号２０
５七″’Ｈｉｇｈ”にして出力する。これを受けてホー
ルド回路３０２はホールド状態を抜は出す。遅延出力信
号２０５が′″Ｈｉｇｈ”で出力されている間にヘッド
が基準位置にくると、受光素子１０５はこれ全検出し検
出信号２０１ビＬ ｏ ｗ ”にして出力する。次に遅
延回路３０１は一定時間後その出力信号２０５’ｉ″’
Ｌｏｗ″にすると、ホールド回路３０２は再びホールド
状態となり、前記検出信号２０４のレベルをホールドし
、ラッチ出力信号２０６を保持する。その後遅延回路１
０１が一定時間経過したことにより、ドライバ駆動信号
２０２を１プにし、ドライバ回路１０２は発光素子１０
４への電力供給を停止する。FIG. 3 shows a time chart in this embodiment. Third
To explain the operation of each part in the one-wire embodiment shown in the figure, the delay circuit 101 is activated by a pulse signal 201 and outputs a driver drive signal 202. Driver circuit 10
2 receives this and outputs the supplied power 203 to the light emitting element 104. On the other hand, the delay circuit 301 of the latch circuit 103 receives the leading edge of the driver drive signal 202 and receives the delayed output signal 20.
57"'High" and output. In response to this, the hold circuit 302 releases the hold state. When the head comes to the reference position while the delayed output signal 205 is being output at ``High'', the light receiving element 105 detects all of this and outputs the detection signal 201 as ``Low''.Next, the delay circuit 301 is the output signal 205'i''' after a certain period of time
When set to ``Low'', the hold circuit 302 enters the hold state again, holds the level of the detection signal 204, and holds the latch output signal 206.Then, the delay circuit 1
01 has passed for a certain period of time, the driver drive signal 202 is set to 1, and the driver circuit 102 drives the light emitting element 10.
Stop power supply to 4.
（発明の効果）
本発明は以上説明したように発光素子に供給される電力
を制御することにょシ、消費電力を減少させる効果があ
る。(Effects of the Invention) As described above, the present invention has the effect of reducing power consumption by controlling the power supplied to the light emitting elements.
第１図はへ、ド基準位置の検出機構を示す図、第２図は
本発明の一実施例におけるディスク装置を示す図、第３
図は本発明δ実施例におけるタイムチャート金示す図で
ある。
−−−１１・・・・・・ディスク、１２・・・・・・ヘ
ッド、１３・・・・・・シャッタ、１４・・・・・・発
光素子、１５・・・・・・受光素子。
１０１．３０１・・・・・・遅延回路 １０２・・・・
・・ドライバ回路、１０３・・・・・・う、子回路、１
０４・・・・・・発光素子、１０５・・・・・・受光素
子、３０２・・・・・・ホールド回路、２０１・・・・
・・パルス信号、２０２・・・・・・ドライバ駆動信号
、２０３・・・・・・供給電力、２０４・・・・・・検
出信号、２０５・・・・・・遅延出力信号、２０６・・
・・・・ラッチ出力信号。
第 １ 閏 ハＯルズ信号 どθ
ｌ 。
第 ２ 閃
第３閏FIG. 1 is a diagram showing a detection mechanism for the standard position of the disk, FIG. 2 is a diagram showing a disk device in an embodiment of the present invention, and FIG.
The figure is a diagram showing a time chart in the δ embodiment of the present invention. ---11... Disc, 12... Head, 13... Shutter, 14... Light emitting element, 15... Light receiving element. 101.301...Delay circuit 102...
...Driver circuit, 103...U, child circuit, 1
04... Light emitting element, 105... Light receiving element, 302... Hold circuit, 201...
... Pulse signal, 202 ... Driver drive signal, 203 ... Supply power, 204 ... Detection signal, 205 ... Delayed output signal, 206 ...
...Latch output signal. 1st leap HaOls signal Doθ
l. 2nd flash 3rd leap
Claims (1)
位置を発光素子と受光素子により検出する機構を有する
ディスク装置に於て、ヘッドを移動させるときの信号に
より一定時間巾の信号を得る遅延回路と、この遅延回路
の出力信号により発光素子への電力供給を制御するドラ
イバ回路と、前記発光素子へ電力が供給されている間に
前記受光素子により検出されたヘッドの位置情報をラッ
チするラッチ回路とを含むことを特徴とするディスク装
置。A delay circuit that obtains a signal of a certain time width from a signal when moving the head in a disk device that has a mechanism for detecting the position of the head for writing and reading information on a recording medium using a light emitting element and a light receiving element. a driver circuit that controls power supply to the light emitting element using the output signal of the delay circuit; and a latch circuit that latches head position information detected by the light receiving element while power is being supplied to the light emitting element. A disk device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13852884A JPS6117269A (en) | 1984-07-04 | 1984-07-04 | Disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13852884A JPS6117269A (en) | 1984-07-04 | 1984-07-04 | Disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6117269A true JPS6117269A (en) | 1986-01-25 |
Family
ID=15224257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13852884A Pending JPS6117269A (en) | 1984-07-04 | 1984-07-04 | Disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117269A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238570A (en) * | 1985-08-13 | 1987-02-19 | Canon Electronics Inc | Disc driving device |
| JPH0478061A (en) * | 1990-07-12 | 1992-03-12 | Nec Corp | Floppy disk device |
-
1984
- 1984-07-04 JP JP13852884A patent/JPS6117269A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238570A (en) * | 1985-08-13 | 1987-02-19 | Canon Electronics Inc | Disc driving device |
| JPH0580075B2 (en) * | 1985-08-13 | 1993-11-05 | Canon Denshi Kk | |
| JPH0478061A (en) * | 1990-07-12 | 1992-03-12 | Nec Corp | Floppy disk device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6117269A (en) | Disk device | |
| JPS62218155A (en) | Led array head | |
| US4745275A (en) | Sensor circuit | |
| JPH0550489U (en) | Light emitting device | |
| JPH0237021B2 (en) | ||
| JP2584009B2 (en) | Floppy disk drive | |
| JP2546138B2 (en) | Disk drive | |
| JPH026550Y2 (en) | ||
| JPH0610504Y2 (en) | Photo detector | |
| KR900003583Y1 (en) | Circuit in camera | |
| JPH0756729B2 (en) | Disk drive | |
| JP2606529B2 (en) | Disk unit | |
| SU507894A1 (en) | Magnetic tape drive | |
| KR890001030Y1 (en) | Roel sensing circuit of vtr | |
| JPS6386585A (en) | Semiconductor laser output control equipment | |
| JPS61137247A (en) | Detecting mechanism of tape end | |
| JPH0335745B2 (en) | ||
| JPH01208733A (en) | Disk index detector for optical disk device | |
| JPH01279422A (en) | Recording circuit for optical disk | |
| JPS59119646U (en) | photoelectric switch | |
| JPS60108200U (en) | Stepping motor drive circuit | |
| JPS58162125U (en) | camera | |
| JPH0622067B2 (en) | Semiconductor laser drive device | |
| JPS6412025B2 (en) | ||
| JPS60142831U (en) | optical information processing device |