JPS59154630A - Writing method of servo track - Google Patents

Abstract

PURPOSE:To eliminate the need for writing of a reference clock and attachment/ detachment of a clock generating head by providing an optical recording medium and a photodetecting means to a rotary shaft attachably and detachably and writing servo information in a magnetic recording medium rotated in synchronization with this signal. CONSTITUTION:The optical recording medium 14 on which a clock signal is recorded is fixed attachably and detachably to an end part of a rotary shaft 2A of a spindle mechanism 2 via a clamp 15, and when the medium 15 is rotated and a servo track is positioned, light shown in the arrow A is irradiated from a light source 16, reflected light shown in the arrow B from a recording face is received by the photodetector 17 and the clock signal is transmitted from the photodetector 17 to a receiving section 12. A recording section 13 transmits servo information D to a magnetic head 7B for servo in synchronization with the clock signal from the receiving section 12 so as to write the information to the servo track. After the end of writing, the optical recording medium 14 is removed and used for the next writing.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical field of the invention The present invention includes a magnetic disk 7 vortex having a servo surface to which servo information is to be inserted, and servo information clock signal generation. The media are fixedly attached to the rotating shaft of the same spindle mechanism, and the loading of servo information is related to the method of loading the servo track, which is loaded in synchronization with the clock signal.

(b) Prior art and problems This cannot be done using a ridge mechanism or a rotary actuator mechanism. For example, the rotating Actico R.

A case in which the control mechanism is used is constructed as shown in FIG. 1.

FIG. 1 is an explanatory diagram illustrating a method for writing servo tracks in a rotary disk device using a rotary actuator mechanism.

Flare AIA is transmitted through bearings IIA and IIB of the rotating shaft 2A of the spindle mechanism 2 that is rotationally driven.

It is rotatably supported by 1B. This rotating shaft 2
A hub 3 is fixed to A, and a spacer 4 is attached for the row of hub 3.
A plurality of sand bodies 5 are fixed at predetermined intervals. On the other hand, the rotation shaft 9AU bearing I of the actuator mechanism 9
It is rotatably supported by frames IA and IB via IC and IID, and is rotated by voice coil motor 10. Additionally, several members of the Acte-Yue Mechanism 9, 9
A magnetic head 7 is held at the tip of each side of B via a gimbal 8.

": When inserting 1 toeboard information into N-, write it in the high-precision V' relation for each of the bit direction and track pitch direction in the track. , it takes 111 minutes to record.

Therefore, it is written as 11th order in the bit direction. Door) 1 constant one nervous i5B and the 1005B
Reference clock surface 5 for recording the reference clock on a recording surface other than
A is set, and the clock generation Cλ air head 7A is extended from the frame IC via the arm 6 and the gimbal 8 so as to face the reference clock plane 5A.
71. By rotating and driving the spindle mechanism 2, θ
When the Ll attachment 5 reaches a predetermined rotational speed, the recorded reference clock 5A of the chronograph is picked up by the marine air head 7A and sent to the receiving section 12.
Ru. The receiving section 12 outputs the received clock F"r to the recording section 13.Synchronizing with this clock signal, the recording section 13 sends servo information to the servo head 7B (a3/air head 7B). , - for Leeho (a kihenodo 7 B K J
Knee)'(-!J-Ho side 5BK recorded.

On the other hand, the position 16' of the pair 1-7 in the track pitch direction is determined as follows. A prism (not shown) is fixed to the arm 913, a laser beam is irradiated, the laser beam reflected by the prism is measured by a laser length measuring device, and the voice coil motor 10 is rotated. The stone's and air head 7 are positioned for banquet movement.

Therefore, when the door body 5 rotates at a constant rotational speed on the rib surface i5B, the position of the magnetic conduction door is determined by the length measuring device, and the reference clock 4i' is determined.
This is done by recording -'i using the two-bore magnetic head 7B.

On top of this, the standard is "1" when plowing the bottle trunk.
For Δ15AK, it is necessary to record the clock g1 in advance. This record of Chrono Kui No. 84 is the standard for the servo 10 report, so the rotation speed of the deaf body 5 is accurately I
The rotational speed of the VF agency is desirable.

Therefore, 1,1I11 regular clock clock 141 [: record is used for clock generation, ・(Ki head 78 is used to insert the amount of iron, and it is used as a 1" 4 inch one.

I'm depressed, and it's like this: %% @
One of the shortcomings of Komiike II eyebrows 3j)
Furthermore, remove the clock generation magnetic head 7A for recording and reproducing clock signals! 4
'＜υRemoval also requires a lot of man-hours5.
)'! I have a problem with l-7ζ.

(C) The purpose of investigation is 1 spindle tl for the purpose of invention;
At Degawa Nohri jJ Tsuku Jogetsu is E (24)! j sanotta optical record 0 body 1: nke, tono) i's Q+":, record girl body", υ Tsume quasi By making j'l tsuku ji, 41-, remove the Ht1 point mentioned by jr, / Komono 31-
Stirring ((Surumono de Z).

(d) h' ~ Ekikou of the invention The purpose of the invention is to provide a V: loading method for such a two-boot truck, in which the rotation ψ of the spindle 4 is 1 to -ν (7 rotations N<~JI, 11 is equipped with a magnetic 61゛, recording body 11, an optical recording medium latched to the rotating shaft with a magnetic head for writing, and a magnetic head for writing.
The writing of the servo information is accomplished by the 4J-bot rack writing method, which is characterized in that the writing of the servo information is performed in synchronization with the number i of the light detection means.

(c) Examples of the invention The present invention will be explained in detail below with reference to FIG.

2nd Closing 11 A method of taming a Tuho truck according to the present invention 1'] The part showing the state side, . . .

At the end of the rotating shaft 2A of the spindle A mechanism 2, there is an optical recording object 'L4' on which a clock (g-bow) is recorded.
cM can be detached freely, and the recording surface of the 6 optical recording bodies 14 is attached to the optical L.
J style! 16 and a photodetector] 7, and the Chrono Kui No. 84 read out is sent to the communication section 12, and the servo signal is read in (2).
/C.

Therefore, when the medium 5 is rotated to a predetermined rotational speed tl and the position of the two-track track 71 is lowered to the same position as described above,
Light of arrow A is irradiated from the light beam 16, and the light of arrow B emitted by the recording surface is received by the photodetector 17. A clock signal is sent from the photodetector 17 to the receiving section 12. The recording section 13 is synchronized with the clock signal from the receiving section 12 and sends servo information to the servo head 7B, and the recording of the servo trunk is performed.

Further, after finishing cutting the servo trunk, the optical recording medium 14 is removed 7 and used for the next cutting process.

With this configuration, the recording of the servo trunk is performed using an optical head in which the optical recording head 14, the light source 16 for reading the recording surface 1 of the optical Renail medium, and the photodetector 17 are formed into one body. This can be done by attaching a conventional clock signal recording device, and also eliminates the need for the installation and removal of the clodge generating air crushing head 7A.

(f) Moving piece of the invention, as explained below, it was not invented, and the number of clock signals was high in the morning;
The recorded optical recording block 14 is attached to the rotation +11112 A, and is read back and forth by an optical head, and servo information is written on a predetermined servo surface 5B in synchronization with the read clock signal. It is something. This results in
According to the conventional standard, it is no longer necessary to omit the work of I-kook and the work of attaching and detaching the 4-chip head 7A for clock generation, reducing the number of man-hours. There is 1 point of hem used for inclusion, and the practical effect is a dog.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional servo trunk writing method, and FIG. 2 is a scatter diagram showing an embodiment of the servo trunk writing method according to the present invention. In the figure, IA, IB, IC1d frame, 2U spindle and mechanism, 2 people are rotating shafts, 3 is hub, 41d svezer, 5 is W body, 6th arm, 7 is magnetic head, 8 is gimbal, 9 is actuator Mechanism, 9A is rotation axis, 9B
is arm, 1 (H; t voice coil thousand, IIA,]
, IB, IIC, IID bearings, 12 is the receiving section,
13i1 recording section, 14 light recording demon body, 15 is clamp,
16 is a light source, and 17 is a photodetector. Close prayer for V-? 1

Claims (1)

[Claims] A magnetic recording medium fixed to a rotating shaft rotationally driven by a spindle mechanism, an optical aperture self-recording medium fixed to the rotating shaft 1 (removably It is equipped with a light detection means for reading recorded information on the body and a magnetic head for writing servo information onto a predetermined servo surface of the recording medium.
l. The servo-transmission method is characterized in that the recording of the servo signal is performed in synchronization with the signal of the light detection means.