JPH03214472A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To shorten seek time essentially by moving a pickup to a position with high probability to be moved next after prescribed time after moving finally with an instruction accompanying by the travel of the pickup from a host device. CONSTITUTION:An optical disk controller receives a command and starts up a timer 5 when judging that it includes a seek operation, and executes the command, and awaits the lapse of constant time. The controller, when receiving the command including the seek operation during that time, starts up the timer 5 again. When the constant time elapses without receiving the command including the seek operation after starting up the timer 5, the optical disk controller automatically seeks the pickup to a track with the highest frequency of seek in the past out of targeted tracks being accumulated and stored until then, then, awaits the next operation. In such a way, it is possible to shorten the seek time observing from the host device 7.

Description

[Detailed Description of the Invention] [Industry 1. Field of Application] The present invention is applicable to disk-shaped storage media 1, . This relates to an information recording+IF zl device for recording information on If 71.

[Background Art] In recent years, computers have become faster and have higher LTP performance, and along with this, there is a desire for faster speeds and higher performance of peripheral devices.

In particular, such as magnetic disk devices and optical disk devices.
Next storage is high {. , Reducing seek time and increasing data transfer speed while ensuring reliability, human capacity 1,! There is an urgent need to implement In order to respond to such requests,
Conventionally, recording, +If pickup has been changed to ◆Yla, and the rotation speed of the storage medium has been changed to 1. Countermeasures have been taken, such as making the trunk pitch and recording spatial frequency the same as each other.

However, especially in the case of optical disc devices, the recording ++tqt big amplifier is! 1. Although the fi surprise is planned,
Since the city fat is smaller than that for magnetic disk devices, it is currently difficult to shorten the seek time.

Hereinafter, with reference to the drawings, we will explain the following: 111 Information Recording of Conventional Example Seeking Cutter in Cattle Apparatus. Explain the order. FIG. 3 shows a schematic diagram of a general optical disk device as an information recording +1 generation device. In this figure, after starting, the optical disk controller first performs 1 in step (2I).
゜． It receives a seek, read, or write command as an instruction from a host device (eg, a host computer) along with an 11-standard logic block. Then step (22)
So, 1. If it is determined that the command from the Xun device includes a ``Nook'' command, the process proceeds to step (23). In step (23), the optical disk controller calculates the physical track number corresponding to the -1 logical block and the physical sector number in the trunk, and issues it to the optical disk drive along with a nook command in step (24). .

Upon receiving this command, the optical disk drive performs one step from the big amplifier position at that special point in step (25).
Calculate the distance to the position of the 1st trunk trunk by 11 and move the linear motor to the approximate position. Next, the position of the pink asop at that special point is detected, and the pickup is moved to the 11th mark toranok by jumping the required number of tracks using the stezop (26).

? Problems to be Solved by the Invention] However, as in the sub-examples described in 1.., the optical disk controller is 1.. When a seek operation is started after receiving a command from the optical disk drive, the average seek time will match the physical seek speed of the optical disk drive. Therefore, in conventional equipment, in order to achieve higher speeds, it is necessary to improve the physical performance of the drive.
However, there was a problem in that the development required an enormous amount of money and time, making it impossible to implement a practical solution.

The present invention has been made to solve these problems, and it is possible to improve the physical performance of an optical disk drive without improving the physical performance of a host computer. An eleventh object of the present invention is to provide an information recording device that can substantially shorten the seek time seen from the device.

[Means to solve the problem]

In order to achieve the 11 objectives as described in 1-, the invention includes a medium drive T stage that simultaneously rotates a disk-shaped storage medium, and a system that records information on the storage medium and records information on the same storage medium. 11. Picking up the 111th raw information, moving the data to a desired position on the storage medium, and determining the elapsed time after the seek is performed by the moving page. 11 time elapsed timer F. Step 1. The movement is such that the big knob is moved to a predetermined position without a command from the host device after a predetermined period of time has elapsed since the last movement of the big knob was performed by a command issued from the host device. It is characterized by having a movement control plate/stage for controlling the means.

Further, in the tree invention, the storage medium is divided into a plurality of concentric areas around its rotation center, and each area has a radius of 1°. A movement control stage f stores the number of times the pinoceanop has been moved in accordance with a command issued from the movement number storage unit, and the movement control stage f is configured to move the pinoceanop within the area that has been moved the most, which is stored in the movement number storage unit. , the big a, b can be moved after a predetermined period of time has elapsed, and in this case, the movement number storage section is ! ``.After a certain amount of time has elapsed since the end of the last command to move the pickup issued by the device, 1
・．． It may also be configured to store the number of times the pickup has been moved in accordance with a command issued by the device.

Historically, in the invention, in addition to the above-mentioned movement control means, (a) approximately the average distribution of the movement destinations of the pickup performed on the storage medium installed in the medium drive stage (0) A device that moves the pick anop to a specified position after a predetermined period of time has elapsed; 1
．． (c) In the continuous recorded area of the storage medium 1- mounted on the medium drive stage R, the pickup is moved after the lapse of 111. (2) a device that moves the pickup after a predetermined period of time has elapsed; (2) a storage medium 1- mounted on a medium drive stage; The pickup amplifier may be moved to approximately the center of the entire area that can be accessed from the device after a predetermined period of time has elapsed.

[For production]

The present invention has the configuration as described in section 16, and is controlled by the movement of the movement control plates and columns in steps 1, . In response to a command to move the +lif pickup issued from the device, the moving means
Since the pickup is controlled to be moved to a predetermined position after a predetermined period of time has elapsed since the last movement of the pickup, without any command from the device, the next command issued from the host device will move the pickup to the predetermined position. It is possible to move the position r to the position with the highest probability of movement, and the seek time seen from the 1-position device can be substantially shortened.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Figure 1 shows information record +1 related to this embodiment.
/I. This figure shows the general configuration of the device. In this figure, (1) is a disk-shaped storage medium, and (2) is a storage medium (1).
), (3) is a storage medium (1)
a pickup for recording information on the storage medium (1) as well as reproducing the information recorded on the storage medium (1); (4) a moving means for seeking the pickup (3) to a desired position on the storage medium (l); (5) is the total elapsed time after the seek execution by movement F stage (4) is 7! A timer (6) is a movement control means for controlling the movement means (4), and this movement control means (6) is, for example, a 1. A pink-up (3) is sent from the host device (7) after a predetermined period of time has elapsed after the last movement of the pickup (3) by 11 degrees according to a command to move the pickup (3) issued from the host device (7). The moving means (4) is controlled to move to a predetermined position without any command.

FIG. 2 shows the L order in the information recording +1 generation device according to this embodiment. In this figure, when the optical disk controller receives a command in step (II) and determines in step (I2) that the command includes a seek operation, it uses the steno knob {13} to
Perform a seek operation. In step (I4), the timer (
5), execute the command in step (l5), and wait for a certain period of time to elapse in step (1B).

In the meantime, when the next steno knob (17) receives a command that includes the nuku movable, it returns to the steno knob (!3) via the steno knob (+2), calls 1, and starts the timer (5).

After starting the timer (5), if a certain period of time elapses without receiving any commands including the
8), the optical disk controller selects the highest seek degree in the past among the II standard tracks that have been cumulatively stored up to that point. Automatically seek the 1'b's takanobu and wait. By doing this, 1.
．． It is possible to substantially shorten the search time as seen from the positioning device (7).

The general F order for disk access is the 1st place device (7
) issues an 11 read command for reading the medium management information 11'' continuously in time after issuing a user data write command. Therefore, the user data +'
After receiving a command with a seek operation from the 1-position device (7), a seek operation is performed without receiving the command.
1. During that time, 1.. In this case, the seek time from the point of view of the 1st device (7) is high. 2<.For this reason, after the seek
A timer is provided to prevent automatic seeking during a fixed period of time.

In the above embodiment, the 11-mark sector to be automatically sought was set as the track with the highest seek frequency in the past, but in the present invention, the storage medium is divided into a plurality of concentric areas around its rotation center, The number of times that each area has been moved is accumulated, and a number of movement storage section is provided, and the area that has been moved the most, stored in this number of movement storage section, is
As a one-mark truck, the bink anop (3) may be moved by the movement control means (6) after a predetermined period of time has elapsed.

In addition, the number of movements is stored in the movement count storage unit for the movement issued from the 1-th place device 1' after the end of the last command involving movement issued from the 1-th place device, and after a period of time I- has elapsed. Only the number of times the target has been moved by a command accompanied by this may be accumulated, and the area that has been moved the most may be set as the 11-mark track.

Historically, in the present invention, the 11-track truck of the storage medium (Ill-) is used to move the pick-up (3) via the moving means (4) after the lapse of a predetermined time by the moving 1, II stage (6). , can be set as follows.

(b) The storage medium (
The approximately equal position of the distribution of the destinations of the pickup (3) performed for 1) is assumed to be the II target track.

(Ex) With respect to the storage medium (+) attached to the medium drive stage (2), the position specified by the host device (7) is set as the 11th trunk.

(C) Particularly 1. In the case of an optical disc that can be written once and read multiple times, it is common for the recorded sectors to be consecutive, so the track that includes approximately the center of the consecutive recorded sectors. is an 11-mark track.

(Storage medium (1) attached to force medium drive r stage (2)
) The beginning of the user recording area is 11 marks Toranoku.

(n) Is it installed in the medium drive r stage (2)? 'Record 1' from the host device (7) of storage medium (+) l:
'I. ．． The toranok located approximately in the center of the 1f area is designated as the 11 mark track.

[Efficacy of invention Song Dynasty]

As is clear from Example 1- below, according to the present invention,
After a predetermined period of time has elapsed since the last movement according to a command issued by the host device to move the pickup, the pickup is moved to a position with a high probability of being moved next without a command from the device. Therefore, the nuke time seen from the host device can be substantially shortened.

4. I11. FIG. 1 is a schematic configuration diagram of an information recording device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the processing order of commands issued from a host device in the same device, and FIG. The figure is a flowchart showing the order of command processing F in the subordinate information recorder (11).

(1)...storage medium, (2)...medium driving means, (
3)...B,quaamp, (4)...Moving r stage, (5
)...Elapsed timer means, (6)...Movement control stage F,
(7)...Upper device.

ゝ　One（　l 1st figure 3 Figure 2 Third figure

Claims (6)

[Claims] (1) a medium drive means for rotating a disk-shaped storage medium;
A pickup for recording information on the storage medium and reproducing the information recorded on the storage medium, a moving means for seeking the pickup to a desired position on the storage medium, and after performing the seek by the moving means. elapsed timer means for measuring the elapsed time of the pickup; and a timer means for measuring the elapsed time of the pickup, and a timer means for moving the pickup without a command from the host device after a predetermined time has elapsed since the last movement of the pickup according to an instruction to move the pickup issued from a host device. An information recording/reproducing apparatus comprising: a movement control means for controlling the movement means so as to move the movement means to a predetermined position. (2) The storage medium is divided into a plurality of concentric areas around the center of rotation, and each area stores the number of times the pickup has been moved in response to a command issued by the host device that involves movement of the pickup. 2. The information recording and reproducing apparatus according to claim 1, further comprising: a movement control means that moves the pickup after a predetermined time period to an area that has been moved the most, which is stored in the movement number storage section. (3) The movement count storage unit stores the number of movements by a command issued by a higher-level device that causes a pickup to move after a certain amount of time has elapsed since the end of the last command issued by the higher-level device that caused a pickup to move. 3. The information recording and reproducing apparatus according to claim 2, wherein the information recording and reproducing apparatus is configured to store the number of times the information has been recorded. (4) The movement control means moves the pickup after a predetermined period of time to a substantially average position of a distribution of pick-up movement destinations performed on the storage medium mounted on the medium drive means. 1. The information recording and reproducing device according to 1. (5) The information according to claim 1, wherein the movement control means moves the pickup to a position specified in advance by the host device with respect to the storage medium attached to the medium drive means after a predetermined period of time has elapsed. Recording and playback device. (6) The movement control means moves, in a continuous recorded area on the storage medium mounted on the medium drive means, to approximately the center of the area portion containing the largest number of sectors included in this area;
The information recording and reproducing apparatus according to claim 1, wherein the pickup is moved after a predetermined period of time has elapsed. (7) The movement control means moves the pickup to approximately the center of the entire area accessible from the host device on the storage medium mounted on the medium drive means after a predetermined period of time has elapsed. The information recording and reproducing device according to item (1).