WO1986002480A1 - Systeme de commande de tete magnetique pour dispositifs de memoire auxiliaire externe - Google Patents

Systeme de commande de tete magnetique pour dispositifs de memoire auxiliaire externe Download PDF

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Publication number
WO1986002480A1
WO1986002480A1 PCT/JP1985/000570 JP8500570W WO8602480A1 WO 1986002480 A1 WO1986002480 A1 WO 1986002480A1 JP 8500570 W JP8500570 W JP 8500570W WO 8602480 A1 WO8602480 A1 WO 8602480A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic head
external auxiliary
program
auxiliary storage
storage device
Prior art date
Application number
PCT/JP1985/000570
Other languages
English (en)
Japanese (ja)
Inventor
Kunio Tanaka
Seiichi Hattori
Kunio Kanda
Original Assignee
Fanuc Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fanuc Ltd filed Critical Fanuc Ltd
Publication of WO1986002480A1 publication Critical patent/WO1986002480A1/fr

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Definitions

  • the present invention relates to a magnetic head control method for an external auxiliary storage device which is convenient for protecting a magnetic head of an external auxiliary storage device such as a magnetic storage device.
  • a magnetic storage device using a magnetic disk which is usually called a hard disk, has a program stored in a disk control unit when the power is turned on, and an arithmetic operation is performed. As the processing program progresses, the head on the disk is moved, and necessary data and the like are read out or written. As is well known, the magnetic head moves on the magnetic disk while maintaining a slight gap from its surface while being supported by the arm on the magnetic disk. Such a magnetic disk is extremely vulnerable to impact, and has conventionally been used as a non-recording area for the inner layer of the innermost recording area of the magnetic disk as a non-recording area. In this case, the magnetic head was moved to this shading zone before carrying the equipment.
  • the shibbing zone is the area on the magnetic disk where neither data is read nor written, and the magnetic head is the magnetic disk. Magnetic disk data will not be affected if the disk's shicking zone is eroded and slightly damaged. .
  • a magnetic The operation program for moving the head to the sitting zone is included in the system program stored in the disk control unit.
  • the action program to move to the zone was selected and executed.
  • the program data is correct and the disk control unit
  • the system programming was not possible because the data was not read correctly even if the data was read correctly.
  • the above-mentioned operation program included in the program also had a disadvantage that it was not able to operate.
  • a failure of this kind of software or a failure such as a data input / output mechanism actually occurs, It is necessary to carry the device while protecting the magnetic head using the zoning zone.
  • the invention was made to solve these disadvantages, and the magnetic head was controlled by a drive command based on a system program. If not, make sure to move the magnetic head to the shicking zone and protect the magnetic disk from the magnetic head of the external auxiliary storage device. Its purpose is to provide a driving system.
  • a shining zone formed inside the innermost recording area of the magnetic disk And a read-only memory (ROM) that stores a program for operating the magnetic head up to the shibbing zone.
  • ROM read-only memory
  • An operation switch for inputting a program read command to the ROM is provided, and the automatic finger supplied from the system program to the magnetic head is provided. Independently, the magnetic head is moved to the shibbing zone by the operation switch.
  • the operation in the system program is normally performed.
  • the finger 4 can be switched back to the manual mode of operation and the magnetic head can be moved to the disk's shibbing zone.
  • a complex failure occurs and it is not possible to generate such a drive command, for example, turning off the power once and then turning on the special operation switch
  • the program stored in the read-only memory (ROM) is called up, and the magnetic head is moved to the sitting zone. It can also be driven by
  • FIG. 1 is a block diagram showing an example of the invention *
  • FIG. 2 is a plan view showing a magnetic disk
  • FIG. 3 is a block diagram showing an example of a magnetic storage device.
  • FIG. 4 is a lock configuration diagram
  • FIG. 4 is a diagram illustrating the operation of the embodiment.
  • Figure 1 is an external auxiliary memory device and to hard disk instrumentation operational 3 ⁇ 4 painting Bei the location HDD Rishi scan tape profile ⁇ click configuration diagram of a beam
  • FIG. 2 FIG. 3 Ha chromatography 1 is a plan view of a disk * body and a diagram showing an example of a hard disk device HDD.
  • Reference numeral 1 denotes an arithmetic processing circuit MPU which is connected to a storage device such as a program memory RAM a or a data memory RAM b via a path line 3. Originally, it is read with HDD 2. The HDD 2 transmits and receives the bus line 3 and data and programs via the disk control unit HDC. Numeral 4 is a ROM storing a program for driving the magnetic head of the HDD 2 to the magnetic disk shining zone.
  • Reference numeral 5 denotes a keyboard KEY including an operation switch for inputting a program reading finger to the ROM 4 described above, via a data input unit D / I. Thus, various input signals are generated on the bus line 3.
  • the above HDD 2 has a plurality of disk-shaped magnetic disks (hard disks) 6 as shown in FIG.
  • the disk 6 is inserted into the center support hole 6a by the rotating hair moving part 7 which is rotationally controlled by the disk controlling part HDC as shown in Fig. 3.
  • the arm 9a supporting the magnetic head 8 moves linearly on the disk 6 by the track selection mechanism 9. Be done.
  • the surface of the disc 6 is divided into a recording area 6b in which a plurality of concentric tracks are formed, and a shading zone 6c in the innermost recording area. It has been done.
  • the shining zone 6c is a non-recording area that is not used for recording of the above-mentioned communication and the like, and is used when the HDD 2 is separated from the arithmetic processing system and carried.
  • the magnetic head 8 is clamped at a position 8 'shown in FIG. 3 so as not to damage the ai recording area 6b.
  • the system program can be selected by the command read out from the controller, or the key 5 can be switched from AUTO to MANUAL and the head can be selected. 8 can be given to HDD 2 with a drive command to move it to the seating zone 6c.
  • the program to read the program from ROM 4 can be input from the gear switch of the HSZ (HSZ). That is, in the processing system shown in FIG. 1, the HDD 2 connected as an external auxiliary storage device is a Program memory RAM a or disk control unit If the system does not operate according to the system program from the HDC, the ROM 4 to the magnetic head 8 The head movement command on the bus line 3 and drive it to the system zone 6c. Input to HDD 2 as a command independent of the drive command based on the system, and forcefully lock the magnetic head 8 that is positioned on the outermost track when% input. Move it to Bing Zone 6c
  • the command for moving the head 8 is generated, for example, as a pulse lip in the disc control unit HDC.
  • the track selection mechanism 9 of the HDD 2 operates. Although the balun motor to be operated is operated automatically, the introduction of the HSZ key switch causes the head to be reopened on another sales line. It may be connected to a line to execute the ROM 4 ZI command. At the time when the movement to the magnetic head & swing zone 6c is completed, a predetermined movement completion signal is output, and the operator disconnects the HDD 2 from the system. The operation is performed in a sluggish manner, and fault agility is performed.
  • the program reading finger of the ROM 4 was used to operate the HSZ gear switch when the power was turned on.
  • the operation was performed using the HSZ key switch.
  • startup timing cannot be extended only when the power is turned on.
  • the operation command based on the system program must be used before disconnecting from the system. The HSZ gas If the switch is operated in the manual mode, the head will be moved directly to the sitting zone.
  • the invention is suitable to be applied to all types of equipment used by microcomputers, but it is particularly suitable for numerical control devices and numerical control devices that are often carried around in factories. It is suitable for use in programmers for applications.

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Un système de commande d'une tête magnétique pour dispositifs de mémoire auxiliaire externe est pourvu d'une mémoire morte (ROM) dans laquelle est enregistré un programme pour conduire une tête magnétique (8) jusqu'à sa zone de destination, et d'un commutateur d'opération (touche HSZ) pour entrer des instructions de lecture de programme dans la mémoire morte. La tête magnétique (8) est conduite jusqu'à la zone de destination (6C) par le commutateur d'opération (touche HSZ) indépendamment d'instructions de conduite fournies par un programme du système à la tête magnétique (8).
PCT/JP1985/000570 1984-10-15 1985-10-14 Systeme de commande de tete magnetique pour dispositifs de memoire auxiliaire externe WO1986002480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP21596884A JPS6194284A (ja) 1984-10-15 1984-10-15 外部補助記憶装置の磁気ヘツド制御方式
JP59/215968 1984-10-15

Publications (1)

Publication Number Publication Date
WO1986002480A1 true WO1986002480A1 (fr) 1986-04-24

Family

ID=16681218

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1985/000570 WO1986002480A1 (fr) 1984-10-15 1985-10-14 Systeme de commande de tete magnetique pour dispositifs de memoire auxiliaire externe

Country Status (2)

Country Link
JP (1) JPS6194284A (fr)
WO (1) WO1986002480A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397118A2 (fr) * 1989-05-09 1990-11-14 Sanyo Electric Co., Ltd. Appareil de contrôle de disque et sa méthode de fonctionnement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6462863A (en) * 1987-09-03 1989-03-09 Alps Electric Co Ltd Method for controlling disk driving device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396806A (en) * 1977-02-04 1978-08-24 Hitachi Ltd Magnetic disc apparatus controller
JPS54116205A (en) * 1978-03-01 1979-09-10 Mitsubishi Electric Corp Magnetic disc driving apparatus
JPS57205870A (en) * 1981-06-15 1982-12-17 Matsushita Electric Ind Co Ltd Magnetic disc device
JPS60171682A (ja) * 1984-02-15 1985-09-05 Nec Corp デイスク・システムのリトラクト方式

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396806A (en) * 1977-02-04 1978-08-24 Hitachi Ltd Magnetic disc apparatus controller
JPS54116205A (en) * 1978-03-01 1979-09-10 Mitsubishi Electric Corp Magnetic disc driving apparatus
JPS57205870A (en) * 1981-06-15 1982-12-17 Matsushita Electric Ind Co Ltd Magnetic disc device
JPS60171682A (ja) * 1984-02-15 1985-09-05 Nec Corp デイスク・システムのリトラクト方式

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0397118A2 (fr) * 1989-05-09 1990-11-14 Sanyo Electric Co., Ltd. Appareil de contrôle de disque et sa méthode de fonctionnement
EP0397118A3 (fr) * 1989-05-09 1991-07-17 Sanyo Electric Co., Ltd. Appareil de contrôle de disque et sa méthode de fonctionnement
US5198942A (en) * 1989-05-09 1993-03-30 Sanyo Electric Co., Ltd. Disc drive control device with accessing and power control

Also Published As

Publication number Publication date
JPS6194284A (ja) 1986-05-13

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