JPH1145445A - Information recording and reproducing device and method and transmission medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a device to perform a fine search with simplified constitution and at low cost. SOLUTION: When a fine search is commanded, a tracking drive kick pulse is generated from a tracking drive control part 35 and an operation for jumping an objective lens one by one track in the track direction is repeated to jump it by a prescribed number of tracks. A fine search speed is detected from a space between falling and rising edges of a traverse signal generated by zero- crossing a tracking error signal with a speed judging part 34. A tracing drive kick pulse of a polarity so that the fine search speed becomes constant is generated by a tracking drive control part 35. When a tracking drive kick pulse of the same polarity is continuously generated more than two times, a thread drive control part 39 is controlled by a tracking kick pulse counting part 51 to transfer a pickup in the disk radial direction (fine search direction).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus and method, and a transmission medium, and more particularly, to an information recording / reproducing apparatus capable of reliably searching for a desired track with a simple structure. Method and transmission medium.

[0002]

2. Description of the Related Art FIG. 11 shows a configuration example of a conventional optical disk device. The optical disk 2 has a spindle motor 1
Thus, the motor is rotated at a predetermined speed.
The pickup 3 irradiates a laser beam emitted from a built-in laser diode to the optical disc 2 via the objective lens 4 to record or reproduce information. The thread motor 6 transfers the pickup 3 along the thread guide rod 5 in the radial direction of the optical disk 2 via a gear 7.

The servo controller 8 includes a pickup 3
, A focus error signal, a tracking error signal, a traverse signal, and a center error signal are generated and output to the servo processor 9. The traverse signal is a signal generated by comparing the tracking error signal with a reference level (zero level), and the center error signal is a signal corresponding to a deviation of the objective lens 4 from the center position of the pickup 3.

[0004] After subjecting the focus error signal to predetermined processing, the servo processor 9 supplies the focus error signal to the pickup 3 via the focus drive 10 to drive the objective lens 4 in the focus direction and to perform the tracking error signal. After performing predetermined processing on the pickup 3, the pickup 3 is supplied to the pickup 3 via the tracking drive 11,
The objective lens 4 is driven in the tracking direction. further,
The servo processor 9 generates a sled drive signal in response to the center error signal, supplies the sled drive signal to the sled motor 6 via the sled drive 12, and drives the pickup 3 via the gear 7 to the sled guide. The optical disk 2 is transported along the rod 5 in the radial direction. The servo controller 8 also controls the spindle motor 1 and controls the rotation of the optical disk 2.

FIG. 12 shows a circuit configuration of the servo processor 9 mainly for tracking servo and thread servo. The tracking error signal is input to a low boost filter (LBF) 31, the low frequency band is emphasised compared with the high frequency band, and then output via an adder 32 and an amplifier 33. Speed determination unit 34
Detects the rising edge and the falling edge of the input traverse signal, determines the transfer speed of the pickup 3 from the interval between the edges, and outputs the determination result to the tracking drive control unit 35. The tracking drive control unit 35 generates a pulse for driving the pickup 3 in the disk outer circumferential direction or a pulse for driving the pickup 3 in the disk inner circumferential direction in accordance with the signal from the speed determining unit 34, and outputs the pulse to the adder 32. Output.

After the low-pass component of the center error signal is extracted by the low-pass filter 36, the low-frequency component is emphasized by the low-pass filter 37 as compared with the high-frequency component, and is supplied to the voltage determination unit 38. Voltage judgment unit 3
8 compares the level of the center error signal with a predetermined reference level, and compares the comparison result with the thread drive control unit 39.
Output to The thread drive control section 39 generates a thread drive kick pulse for driving the pickup 3 along the thread guide rod 5 in the outer circumferential direction or the inner circumferential direction of the optical disc 2 in response to the signal from the voltage determining section 38. , And output through an amplifier 40.

Next, an operation in the case of performing a fine search will be described with reference to a timing chart of FIG. The fine search refers to an operation of repeating the operation of jumping the pickup 3 in the outer circumferential direction or the inner circumferential direction one track at a time, moving the pickup 3 by a predetermined number (for example, 10 to 1000 tracks), and searching for a desired track. I do.

If a fine search for a predetermined number of outer tracks is instructed from, for example, a microcomputer (not shown), the tracking drive controller 35 moves the objective lens 4 toward the outer circumference of the disk by one.
In order to jump by the number of tracks, a tracking drive kick pulse is output as shown in FIG. In this case, it is assumed that the signal of positive polarity is a signal for moving the objective lens 4 toward the outer circumference of the optical disc 2, and the signal of negative polarity is a signal for transferring the objective lens 4 toward the inner circumference of the optical disc 2. Accordingly, in this case, a kick pulse having a positive polarity is output from the tracking drive control unit 35. This kick pulse is supplied to the adder 32 and the amplifier 33
Is supplied to the tracking drive 11 via the controller, and is further supplied to the pickup 3 from the tracking drive 11. As a result, the objective lens 4 of the pickup 3 jumps by one track in the outer circumferential direction. The same operation is continuously performed until a predetermined number of tracks are jumped.

In such a case, the tracking error signal output by the servo controller 8 changes in a sine wave shape every time a track jump is performed, as shown in FIG. The traverse signal generated by comparing the tracking error signal with the 0 level is a rectangular wave signal having a rising or falling edge at the zero cross point of the tracking error signal as shown in FIG. The speed determination unit 34 detects the rising edge and the falling edge of the traverse signal, and
An edge detection signal is generated as shown in FIG. Then, the speed determination unit 34 further measures the interval T between the edge detection signals, and determines whether the interval T is larger than a predetermined reference value set in advance. That is, the period (the speed of the fine search) is determined. Speed judgment unit 3
4, when the interval T is larger than the reference value (when the fine search speed is lower than the reference speed), for example, a signal of a positive polarity is output, and when the interval T is smaller than the reference value (the fine search speed is lower than the reference speed). If fast), output a signal of negative polarity.

[0010] The tracking drive control section 35 generates a tracking drive kick pulse based on the determination result from the speed determination section 34 in accordance with the direction of the fine search. In this case, since the direction of the fine search is the outer circumferential direction, as shown in FIG. 13D, if the signal from the speed determination unit 34 is a signal of a positive polarity, a tracking drive kick pulse of a positive polarity Is generated, and when the signal from the speed determination unit 34 is negative, a tracking drive kick pulse having a negative polarity is generated.

That is, when the fine search speed is lower than the reference speed, the tracking drive kick pulse causes the objective lens 4 to be kicked in the fine search direction (outer circumferential direction). On the other hand, when the fine search speed is lower than the reference speed, the tracking drive kick pulse in the inner circumferential direction is supplied to the objective lens 4. However, the objective lens 4 does not actually jump in the inner circumferential direction due to the tracking drive kick pulse in the inner circumferential direction, but continuously jumps in the fine search direction (outer circumferential direction). Therefore, a brake is added to the drive in that direction. As a result, the servo is operated so that the speed of the fine search becomes a predetermined reference speed set in advance.

By the way, when the position of the objective lens 4 is gradually shifted from the center toward the outer periphery in the pickup 3 while the pickup 3 is stopped on the thread guide rod 5, as shown in FIG. Thus, the center error signal increases, for example, in the positive direction. Voltage determining section 38 outputs a control signal to thread drive control section 39 when the level of the center error signal becomes higher than the reference level. At this time, the thread drive control unit 39, as shown in FIG.
Generates a thread drive kick pulse. The sled drive kick pulse is supplied to the sled motor 6 via the amplifier 40 and the sled drive 12. As a result, the thread motor 6 rotates, and the pickup 3 is transferred to the outer peripheral direction of the optical disk 2 via the gear 7.

The above operation is repeatedly executed,
When a predetermined number of track jumps have been performed, the fine search ends.

[0014]

By the way, in the conventional optical disk apparatus, a sensor is provided, and the position of the objective lens 4 in the pickup 3 is detected by the sensor. Is generated.

However, when the center error signal is generated by the sensor as described above, the configuration of the pickup 3 becomes complicated by the amount of the sensor, and the cost is increased.

Further, for example, it is conceivable to generate a center error signal from the offset value of the DC component of the tracking error signal. However, even if such a method is used, the signal from the servo controller 8 to the servo processor 9 is correspondingly generated. The number of wires and pins has increased,
It is disadvantageous in terms of cost.

The present invention has been made in view of such circumstances, and has a low cost without complicating the configuration.
This enables fine search to be realized.

[0018]

An information recording / reproducing apparatus according to claim 1, wherein a jump means for continuously jumping a head to an adjacent track of a disk, and a head which continuously jumps to an adjacent track of the disk. Speed control means for controlling the speed at which the head moves, and transfer means for transferring the head in the radial direction of the disk in accordance with the urging force of the support member of the head when the head continuously jumps to an adjacent track on the disk. And characterized in that:

According to a fourth aspect of the present invention, there is provided an information recording / reproducing method, wherein a jump step for causing a head to continuously jump to an adjacent track on a disk and a speed at which the head continuously jumps to an adjacent track on the disk are controlled. Speed control step, and when the head continuously jumps to an adjacent track on the disk, a transfer step of transferring the head in the radial direction of the disk in accordance with the biasing force of the support member of the head. And

The transmission medium according to claim 5, wherein the jump step causes the head to continuously jump to adjacent tracks on the disk, and the speed controls the speed at which the head continuously jumps to adjacent tracks on the disk. Transmitting a program comprising a control step and a transfer step of transferring the head in the radial direction of the disk in response to the biasing force of the support member of the head when the head continuously jumps to an adjacent track of the disk. It is characterized by.

In the information recording / reproducing apparatus according to the first aspect, the information recording / reproducing method according to the fourth aspect, and the transmission medium according to the fifth aspect, the head continuously jumps to an adjacent track on the disk. The head speed is controlled, and the head is moved in the radial direction of the disk in accordance with the urging force of the support member of the head.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. In order to clarify the correspondence between each means of the invention described in the claims and the following embodiments, each means is described. When the features of the present invention are described by adding the corresponding embodiment (however, an example) in parentheses after the parentheses, the result is as follows. However, of course, this description does not mean that each means is limited to those described.

The information recording / reproducing apparatus according to the first aspect includes a jump means (for example, steps S1 and S5 in FIG. 9) for causing the head (for example, the pickup 3 in FIG. 1) to continuously jump to an adjacent track on the disk. Speed control means for controlling the speed at which the head continuously jumps to an adjacent track on the disk (for example, step S in FIG. 9)
4) when the head continuously jumps to an adjacent track on the disk, the head is moved in the radial direction of the disk in accordance with the urging force of the support member of the head (for example, the suspension wire 65 in FIG. 3). (E.g., tracking kick pulse counting section 51 in FIG. 2).

FIG. 1 is a diagram showing an example of the configuration of an optical disk device to which the present invention is applied, and portions corresponding to FIG. 11 are denoted by the same reference numerals. The basic configuration of the servo system of this device is the same as that shown in FIG. 11, but in FIG.
In the configuration example, the center error signal is not used.

The RF signal output from the pickup 3 by reproducing the optical disk 2 is supplied to a demodulation circuit 21, binarized, error-corrected, and supplied to a sector address detection circuit 22. It has been done. The sector address detection circuit 22 extracts, from the supplied digital data, an address of a sector in which the digital data is recorded, that is, an address of a sector from which the pickup 3 is currently reading data, and extracts the sector address. In addition to outputting to the system controller 25, the digital data supplied from the demodulation circuit 21 is output to the signal processing circuit 23.

The signal processing circuit 23 performs predetermined processing (for example, decompression processing of compressed data) on the supplied digital data, and outputs the processed data to the data output circuit 24. It has been done.

When multiplexed data is recorded on the optical disk 2, the signal processing circuit 23 selects one of the multiplexed data according to a predetermined setting, and selects the selected data. The data address (sector address) is output to the system controller 25.

The data output circuit 24 is controlled by a system controller 25, and outputs data supplied from the signal processing circuit 23 to a circuit (not shown).

The system controller 25 responds to a sector address supplied from the sector address detection circuit 22 and a command from the user supplied from the input unit 26,
The servo controller 8 is controlled.

When a reproduction command is issued from the input unit 26, the system controller 25 controls the servo controller 8 to rotate the optical disk 2 at a predetermined speed via the spindle motor 1 and to output a signal output from the pickup 3. Then, a focus error signal and a tracking error signal are generated from and output to the servo processor 9. The servo processor 9 supplies the focus error signal and the tracking error signal to the pickup 3 via the focus drive 10 and the tracking drive 11, respectively. Thus, focus servo and tracking servo are performed.

A signal output by the pickup 3 by reproducing the optical disk 2 is supplied to a demodulation circuit 21, binarized, error-corrected, and then input to a sector address detection circuit 22, where a sector address is detected. . The system controller 25 detects the read position of the optical disk 2 from the sector detected by the sector address detection circuit 22,
The servo processor 9 is controlled so that the read position is at a predetermined position. In response to this control, the servo processor 9 controls the sled motor 6 via the sled drive 12 to move the pickup 3 to a predetermined track position on the optical disc 2. In addition, if necessary, a tracking drive kick pulse is generated and output to the pickup 3 via the tracking drive 11. As a result, the pickup 3 is arranged at a predetermined sector address, and reading is started from that position.

The reproduction data from the optical disk 2 is demodulated by a demodulation circuit 21 and then supplied to a signal processing circuit 23 via a sector address detection circuit 22. Signal processing circuit 2
3 performs a process such as a decompression process on the input signal and outputs the processed signal to the data output circuit 24. The data output circuit 24 outputs a signal input from the signal processing circuit 23 to a circuit (not shown).

The tracking servo and thread servo portions of the servo processor 9 are configured as shown in FIG. In FIG. 2, parts corresponding to those in FIG. 12 are denoted by the same reference numerals. As shown in FIG. 2, in the servo processor 9, the low pass filter 36, the low boost filter 37, and the voltage determination unit 38 in FIG. 12 are omitted, and a tracking kick pulse counting unit 51 is provided instead. . The tracking kick pulse counting section 51 counts the tracking drive kick pulses output from the tracking drive control section 35, and controls the thread drive control section 39 in accordance with the counting result.

Further, in this configuration example, in order to realize thread servo at the time of normal reproduction, a low-pass component of the tracking error signal output from the low boost filter 31 is extracted by the low pass filter 52, and the low boost filter 53 After the emphasis is made, the sled drive controller 39 is supplied. Other configurations are the same as those in FIG.

Next, the operation at the time of fine search will be described. Before that, the basic configuration of the pickup 3 and the basic operation at the time of fine search will be described. FIG. 3 shows a state where the objective lens 4 of the pickup 3 is located at the center of the main body 67. Body 67
Is moved by a thread motor 6 along a thread guide bar 5. A base 66 is fixed to the main body 67, and the base 66 is provided with four (only two are shown in FIG. 3) suspension wires 65.
The lens holding unit 61 is movably supported in a tracking direction (vertical direction in the figure) and a focus direction (a direction perpendicular to the paper surface in FIG. 3). Lens holder 61
The objective lens 4 is attached at a position away from the base 66, and the bobbin 6 is attached at a position near the base 66.
2 are installed. A focus coil 63 and a tracking coil 64 are wound around the bobbin 62. Magnets 68 and 69 are applied so that a magnetic field is applied to the focus coil 63 and the tracking coil 64.
Are fixed to the main body 67.

When a focus error signal is supplied to the focus coil 63, the objective lens 4 (lens holding unit 61)
Is driven in the focus direction (the direction perpendicular to the plane of FIG. 3). At this time, the suspension wire 65
In FIG. 3, it is bent in a direction perpendicular to the paper surface.

When a tracking error signal having a positive polarity, for example, is supplied to the tracking coil 64, the signal shown in FIG.
As shown in (5), the objective lens 4 (the lens holding portion 61) moves in the outer peripheral direction. At this time, the suspension wire 6
5 is bent upward in the figure. Similarly, when a tracking error signal having a negative polarity is supplied to the tracking coil 64, the objective lens 4 (the lens holding portion 61) moves in the inner circumferential direction as shown in FIG. At this time, the suspension wire 65 is bent downward in the figure.

As a result, as shown in FIG. 4, when the objective lens 4 is moving in the outer circumferential direction, the suspension wire 65 applies an urging force to return the objective lens 4 in the inner circumferential direction. . Conversely, as shown in FIG.
When the objective lens 4 is moving in the inner circumferential direction, the suspension wire 65 moves the objective lens 4 relative to the objective lens 4.
An urging force for returning in the outer peripheral direction is applied. On the other hand, as shown in FIG. 3, when the objective lens 4 is located at the center of the main body 67, no urging force is generated by the suspension wire 65 in the outer circumferential direction or the inner circumferential direction.

Therefore, when the fine search is executed at a predetermined speed, when the objective lens 4 is located at the center of the main body 67 as shown in FIG. 3, as shown in FIG. A tracking kick pulse for jumping in the search direction and a brake pulse for jumping in the direction opposite to the search direction are generated alternately.

On the other hand, for example, as shown in FIG.
When the position of the objective lens 4 is shifted from the center of the main body 67 in the outer peripheral direction as a result of the fine search in the outer peripheral direction, the suspension wire 65 acts as a braking force in the fine search direction, so that the braking force is applied. A tracking kick pulse is not required to perform this operation. As shown in FIG. 7, as the tracking kick pulse, a kick pulse for jumping the objective lens 4 in the fine search direction (outer peripheral direction) is continuously generated.

Similarly, as shown in FIG. 5, when the objective lens 4 is shifted in the inner circumferential direction with respect to the main body 67 as a result of the fine search in the inner circumferential direction, the suspension wire 65 moves the objective lens 4 out of the outer circumferential direction. In this case, the tracking drive kick pulse for braking is not required, and the tracking drive kick pulse is continuously generated in the fine search direction (inner circumferential direction) as shown in FIG. Is generated.

In the embodiment of the present invention, by utilizing the above principle, when the tracking drive kick pulse has the same polarity a plurality of times successively, the objective lens 4 is moved to the position shown in FIG. Alternatively, as shown in FIG. 5, a sled drive kick pulse is generated assuming that the main body 67 is shifted in the outer circumferential direction or the inner circumferential direction.

Next, the operation at the time of fine search will be described with reference to the flowchart of FIG. 9 and the timing chart of FIG.

When a fine search is instructed from the system controller 25, the tracking drive control unit 35
Generates a tracking drive kick pulse having a polarity in the fine search direction in step S1. For example, assuming that a fine search is commanded in the outer circumferential direction, a tracking drive kick pulse having a positive polarity is generated as shown in FIG. The kick pulse is supplied to the tracking coil 64 of the pickup 3 via the adder 32, the amplifier 33, and the tracking drive 11. As a result, the objective lens 4 jumps by one track on the optical disc 2 to a track on the outer peripheral side.

When the above jump operations are sequentially repeated, the tracking error signal changes in a sine wave shape each time the objective lens 4 jumps the track, as shown in FIG. The servo controller 8 compares this tracking error signal with a zero level,
A traverse signal as shown in FIG. This traverse signal is a rectangular signal having a rising edge and a falling edge at the zero cross point of the tracking error signal.

In step S2, the speed judging section 34 detects a rising edge and a falling edge of the traverse signal, and generates an edge detection signal as shown in FIG. In step S2, when an edge is detected by the speed determination unit 34, in step S3, the system controller 25 jumps to whether or not the target track has been reached, that is, jumps by a predetermined number of tracks set in advance. It is determined whether or not the target track has been reached yet, and the process proceeds to step S4.
In step S4, the speed determination unit 34 compares the interval T between the edge detection signals with a predetermined reference value, and outputs a result of the comparison to the tracking drive control unit 35. When a signal indicating that the interval T is longer than the reference value (the fine search speed is lower than the reference speed) is input from the speed determination unit 34 to the tracking drive control unit 35, in step S1, the fine search direction (now In the case of, a tracking drive kick pulse in the outer circumferential direction) is generated. On the other hand, if the signal from the speed determination unit 34 indicates that the interval T between the edge detection signals is shorter than the reference value (the fine search speed is faster than the reference speed), in step S5, the tracking drive control unit 35 is
Generates a brake pulse.

The above operation is repeatedly executed until it is determined in step S3 that the target track has been reached (until it is determined that a predetermined number of track jumps have been performed).

As a result of performing the above fine search, as shown in FIG. 4, when the objective lens 4 is shifted from the center of the main body 67 toward the outer periphery, the tracking output from the tracking drive control unit 35 is output. As the drive kick pulse (FIG. 10D), pulses of the same polarity are continuously generated. The tracking kick pulse counting section 51 outputs a control signal to the sled drive control section 39 when the tracking drive kick pulse of the same polarity continues two or more times,
Generates a thread drive kick pulse (FIG. 10E) in response to this control signal. This sled drive kick pulse is applied to the
2 and is supplied to the sled motor 6. Thereby, the thread motor 6 is rotated, and the main body 67 of the pickup 3 is transferred to the outer peripheral direction of the optical disk 2 via the gear 7.

As described above, the operation in which the objective lens 4 is jumped in the outer peripheral direction one track at a time is repeated.
When the objective lens 4 is shifted from the center of the main body 67 in the outer peripheral direction as shown in FIG. 4 even after the jump, the main body 67 is transferred in the outer peripheral direction. Therefore, fine search can be performed smoothly.

The above operation is similarly performed when the fine search direction is the inner circumferential direction. In this case, as shown in FIG. 5, when the objective lens 4 moves from the center of the main body 67 in the inner circumferential direction after the jump, a thread drive kick pulse is generated,
The main body 67 is transferred in the inner circumferential direction.

As described above, in the case of the embodiment of the present invention, a change in the polarity of the tracking kick pulse is detected based on the biasing force of the suspension wire 65, and a thread drive kick pulse is generated. Therefore, the configuration can be simplified and the cost can be reduced.

The thread drive control section 39 operates as described above at the time of fine search.
During normal reproduction, the low boost filter 31, the low pass filter 52, and the low boost filter 53
The sled motor 6 is driven by the low frequency component of the tracking error signal input through the.

In the above description, the case where information is reproduced is taken as an example. However, the present invention can be applied to the case where information is optically recorded.

Transmission media for transmitting a program for performing the above-described processing to a user include a magnetic disk and a CD-R.
In addition to recording media such as OMs and solid-state memories, communication media such as networks and satellites can be used.

[0055]

As described above, according to the information recording / reproducing apparatus according to the first aspect, the information recording / reproducing method according to the fourth aspect, and the transmission medium according to the fifth aspect, the head is adjacent to the disk. Since the head is controlled in the radial direction of the disk in response to the urging force of the head support member while controlling the speed of continuous jumping to the track, a simple configuration and low cost device Thus, a fine search can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of an optical disk device to which the present invention has been applied.

FIG. 2 is a block diagram showing an example of the internal configuration of a servo processor 9 in FIG.

FIG. 3 is a diagram showing a configuration of a pickup 3 of FIG. 1;

FIG. 4 is a diagram showing a configuration of a pickup 3 of FIG. 1;

FIG. 5 is a diagram showing a configuration of a pickup 3 of FIG. 1;

6 is a diagram illustrating a tracking drive kick pulse corresponding to the pickup of FIG.

7 is a diagram illustrating a tracking drive kick pulse corresponding to the pickup 3 of FIG.

8 is a diagram illustrating a tracking drive kick pulse corresponding to the pickup 3 of FIG.

FIG. 9 is a flowchart illustrating a fine search process in the configuration example of FIG. 1;

FIG. 10 is a timing chart for explaining the operation at the time of the fine search in FIG. 1;

FIG. 11 is a diagram illustrating a configuration example of a conventional optical disc device.

FIG. 12 is a diagram showing an example of the internal configuration of a servo processor 9 in FIG. 11;

13 is a timing chart illustrating an operation at the time of fine search in the configuration example of FIG. 11;

[Explanation of symbols]

1 spindle motor, 2 optical disk, 3 pickup, 4 objective lens, 5 thread guide rod, 6 thread motor, 8 servo controller, 9 servo processor, 31 low boost filter, 32 adder, 34 speed judgment unit, 35
Tracking drive control section, 39 thread drive control section, 51 tracking kick pulse counting section, 61 lens holding section, 63 focus coil, 64 tracking coil, 65 suspension wire, 67 body, 68, 69 magnet

Claims (5)

[Claims] 1. An information recording / reproducing apparatus for recording / reproducing information on / from a disk using a head supported by a support member so as to be displaceable at least in a tracking direction, wherein the head is mounted on an adjacent track of the disk. Jump means for continuously jumping; speed control means for controlling the speed at which the head continuously jumps to an adjacent track on the disk; and the head continuously jumps to an adjacent track on the disk. An information recording / reproducing apparatus comprising: a transfer unit that transfers the head in a radial direction of the disk in accordance with a biasing force of the support member of the head. 2. The apparatus according to claim 1, wherein the transfer means transfers the head in a radial direction of the disk based on a polarity of a pulse which causes the jump means to continuously jump the head. Information recording and reproducing device. 3. The transfer means, when the jump means generates pulses of the same polarity consecutively a plurality of times as pulses for continuously jumping the head, in a radial direction of the disk, The information recording / reproducing apparatus according to claim 2, wherein the head is moved in the same direction as the direction of the jump. 4. An information recording / reproducing method for recording / reproducing information on / from a disk using a head supported by a support member so as to be displaceable at least in a tracking direction, wherein the head is mounted on an adjacent track of the disk. A jump step of continuously jumping; a speed control step of controlling a speed at which the head continuously jumps to an adjacent track of the disk; and the head jumping continuously to an adjacent track of the disk. Transferring the head in the radial direction of the disk in response to the urging force of the support member of the head. 5. A transmission medium for transmitting a program used for an information recording / reproducing apparatus for recording / reproducing information on / from a disk by using a head supported by a support member so as to be displaceable at least in a tracking direction, A jump step for causing a head to continuously jump to an adjacent track on the disk; a speed control step for controlling a speed at which the head continuously jumps to an adjacent track on the disk; and Transferring the head in the radial direction of the disk in response to the urging force of the support member of the head when continuously jumping to an adjacent track. Transmission medium.