JP2000076793A - Recording medium driving device and method, information recording and reproducing system and method, and provided medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable recording and reproducing AV data in/from a hard disk drive with a real time. SOLUTION: A CPU 14 of a host 20 accesses a HDD 40 through a host interface bus 18, and makes a disk 35 record or reproduce AV data continuously. Thermal calibration, patrol seek, alternation sector processing as non-normality operation performed by the HDD 40 without accompanying record or reproduction is controlled by not the CPU 28 of the HDD 40 but the CPU 14 of the host 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium driving apparatus and method, an information recording / reproducing system and method, and a providing medium, and more particularly to a recording medium driving apparatus for recording or reproducing real-time continuous data such as a moving image. The present invention relates to a method, an information recording / reproducing system and method, and a providing medium.

[0002]

2. Description of the Related Art HDDs (H
ard Disc Drive) has been improving its areal recording density by about 60% annually from around 1990 to the present due to advances in magnetic head technology and signal processing technology. After the year 2000, it is thought that 10GB to 20GB of data can be recorded on one 3.5-inch diameter disc, and it has multiple discs
One HDD will have a recording capacity of 100GB or more. Therefore, DV (digital video) (transfer rate = 29 Mbps) and MPEG2 (Moving Picture Experts Group)
Phase 2) By using high-efficiency digital video compression technology such as (transfer rate = 15Mbps), it is possible to record or play back multiple channels of video information simultaneously on the HDD. Practical application becomes possible.

However, since the HDD has been developed as a primary storage device of a computer, technical improvements have been made in the direction of randomly and quickly accessing so-called discrete text data with high reliability. Therefore, the operation of the HDD is discrete on the time axis. That is,
Commands such as recording and playback supplied from the host to the HDD are:
The operations are performed one by one as independent discrete operations, and there is no guarantee (real-time performance) that the recording operation or the reproducing operation is completed within a predetermined time.

[0004]

The main factors that hinder this real-time performance are as follows: (1) re-execution (retry) of data recording / reproduction, (2) automatic replacement of defective sectors, (3) ) Patrol seek for defect status diagnosis and the like, and (4) thermal calibration for a head positioning control system. While (1) and (2) are operations associated with normal data recording / reproduction, (3) and (4) interrupt normal operations and operate the HDD for a relatively long time (eg, 1 second). Since this is an unsteady operation that is executed with data recording / reproduction stopped, this is a great obstacle to guaranteeing real-time performance. Each is briefly described below.

[0005] The re-execution (retry) of the data recording / reproduction of (1) means that when a defect is found during the data recording or reproduction operation, the same operation is executed again. Recording / reproduction of data in the HDD is performed in short data sector units (for example, 512-byte units) corresponding to packets in communication technology.

During recording of one data sector, for example, HD
If it is detected that the positional deviation of the head from the data track exceeds the allowable amount due to a mechanical shock or the like externally applied to D, the recording operation is stopped. Then, after the head position shift is returned to the normal state and the sector is returned immediately below the head due to the rotation of the disk, the data recording operation is executed again (write retry) for the data sector. Therefore, when a write retry occurs, the continuous data recording operation is temporarily interrupted, and the disk rotation waiting time (for example, when the rotation speed is 90 Hz, 11 m
Since s) is required, real-time performance is hindered.

When one data sector is reproduced, an error exceeding the correction capability of the error correction code (ECC) added to the sector occurs, and if it is determined that the data cannot be corrected, the disk is rotated. Thus, the read operation of the logical sector is executed again (read retry) after waiting for the sector to come back immediately below the head. In this case also, the continuous data reproduction operation is temporarily interrupted, and a disk rotation waiting time is required, which hinders real-time performance. Furthermore, if it is determined that the correction is not possible even after the read retry is performed once, the second read retry is executed.
If the error is not a soft error due to a random cause such as noise, but a hard error due to a definite cause such as a scratch on the magnetic film of the disk, for example, even if the read retry is performed 10 times or more, the data cannot be read correctly. , A dead time of 100 ms or more is required, which is a fatal obstacle to securing real-time performance.

In the automatic replacement process of the defective sector (2),
There are two types of processing, an initial defect replacement process performed when the HDD is shipped from the factory, and a secondary defect replacement process performed by the HDD during use by the user. In the initial defect replacement process, a hard error due to an initial defect existing in the magnetic film of the disk from the beginning is inspected at the time of shipment from the factory, the number of the sector where it exists is stored in the semiconductor memory etc. in the HDD, and the HDD is used. Sometimes, by replacing the initial defective sector with a spare sector provided in another dedicated area on the disk, data reliability is assured as if there is no initial defect from the perspective of the host controlling the HDD. It is a technique to do. The secondary defect replacement process is a method of performing a similar replacement process for a secondary defect such as a scratch on a magnetic film of a disk caused by a user after the user starts using the HDD.

Both of these two types of replacement processing involve moving the head to a physically distant place on the disk surface. If the defective sector and the spare sector exist on different tracks, the replacement process requires a seek operation to move the head to a different track. Further, even if both exist on the same track, a disk rotation waiting time is required. Therefore, the HDD automatically interposes a dead time that the host does not expect as the original data recording / reproducing operation, which is an obstacle to real-time continuous data recording / reproducing such as a moving image.

[0010] Further, in connection with the secondary defect, before the HDD recognizes the occurrence of the secondary defect by the patrol seek or the like described in the following (3) and starts the replacement process, the hard error due to the defect is erroneously detected. There is also a problem that the number of read retries is increased due to being regarded as a soft error.

In the patrol seek of (3), each track on the disk is sequentially sought while the HDD is being used.
In this method, the error status of each data sector is inspected and diagnosed periodically (for example, every 30 minutes), and when a hard error that cannot be read correctly even by read retry is detected, it is diagnosed that a secondary defect has occurred. Patrol seek is also used to prevent the frequency of occurrence of scratches on the disk surface due to the head being on the same track for a long time, and to average the position of the head on the disk surface. It may also be implemented to improve mechanical reliability.

In the patrol seek, the HDD is automatically executed after the recording / reproducing operation is once completed. Therefore, once started, the recording or reproducing operation cannot be performed for a relatively long time exceeding several hundred ms. Therefore, recording and reproduction of real-time continuous data such as moving images was a major obstacle.

The thermal calibration of (4)
This is performed for a head positioning control system that positions the head on a recording track. In the head positioning control system,
Detects head position information from the servo area written on the disk, controls the rotating voice coil motor (VCM) to move the head arm, and moves (seeks) the head onto the target recording track, accurately Is controlled to follow (track). The shorter the seek time is, the better the tracking error is. For this purpose, it is necessary to know in advance the value of the torque constant of the VCM to be controlled and the distribution of its rotation direction before the control operation.

The flexible cable connecting the head on the rotating arm to the amplifier circuit on the drive chassis applies an external force (flexible external force) to the head positioning control system. It is necessary to know before the control operation. Therefore, when the power is turned on, the HDD itself usually measures deviations of the control target parameters such as the torque constant and the flexible external force from the design values. Furthermore, these parameters are susceptible to temperature changes during operation of the HDD. For example, since the electrical resistance of a VCM coil changes with temperature, its torque constant also changes with temperature. Also, the flexible external force and the like may change due to a temperature change.

If the parameters of the controlled object change during the operation, the open loop gain of the servo system changes and the response characteristic changes, so that the establishment time after seek is lengthened, or the external force of the flexible external force during tracking is increased. There is a problem that a residual error remains in the correction and the positioning accuracy is deteriorated. As a countermeasure, thermal calibration is performed. This is because, after the HDD is powered on, at regular time intervals (for example, one hour), after a normal recording or reproduction operation is once completed, a special time period (for example, one second) is given and a normal recording / reproduction operation command is issued. The re-measurement of the above-mentioned control target parameter is not performed. Therefore, this was a major obstacle to recording and reproducing real-time continuous data such as moving images.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and while maintaining the reliability required for an HDD, the real-time performance required for continuous recording or reproduction of moving images by non-stationary operation. Is not impaired.

[0017]

According to a first aspect of the present invention, there is provided a recording medium driving apparatus comprising: a recording / reproducing means for recording or reproducing information on or from a recording medium; and a non-stationary operation which does not involve recording or reproducing information. An execution unit that executes under the control of the information processing apparatus.

According to a seventh aspect of the present invention, in the recording medium driving method, a recording / reproducing step of recording / reproducing information on / from a recording medium and an unsteady operation without recording / reproducing information are performed under the control of the information processing apparatus. And an execution step executed by

[0019] The providing medium according to claim 8 is a recording / reproducing step of recording or reproducing information on or from a recording medium;
A computer-readable program for executing a process including an execution step of performing an unsteady operation without recording or reproducing information under the control of an information processing apparatus is provided.

According to a ninth aspect of the present invention, there is provided an information processing apparatus for transmitting and receiving information to and from a recording medium driving device to record or reproduce, and controlling an unsteady operation of the recording medium driving device without recording or reproducing information. And control means for performing the operation.

According to a tenth aspect of the present invention, there is provided an information processing method, comprising: a transmitting / receiving step of transmitting / receiving information to be recorded / reproduced to / from a recording medium driving device; and a non-stationary operation of the recording medium driving device which does not involve recording or reproducing information. And a controlling step.

According to the eleventh aspect of the present invention, there is provided the providing medium, wherein the providing / receiving step of sending / receiving information to be recorded / reproduced to / from the recording medium driving device and the non-stationary operation of the recording medium driving device which does not involve recording / reproducing information are controlled. A computer-readable program for executing a process including a control step is provided.

According to a twelfth aspect of the present invention, in the information recording / reproducing system, the recording medium driving device includes a recording / reproducing means for recording / reproducing information on / from the recording medium, and an unsteady operation without recording / reproducing information. Executing means for executing based on control from the information processing apparatus, the information processing apparatus compresses information, and supplies information to the recording / reproducing means;
An information expanding means for expanding compressed information supplied from the recording and reproducing means, and a control means for controlling an unsteady operation of the recording medium driving device without recording or reproducing the information. .

The information recording / reproducing method according to claim 14 is
The information recording / reproducing method of the recording medium driving device executes a recording / reproducing step of recording / reproducing information on / from a recording medium and an unsteady operation without recording / reproducing information based on control from the information processing device. An information compression step of compressing information and supplying the compressed information to the recording / reproduction step;
The method is characterized by including an information decompression step of decompressing the information compressed in the recording and reproduction step, and a control step of controlling an unsteady operation of the recording medium driving device without recording or reproducing the information.

According to a fifteenth aspect of the present invention, a recording medium driving device includes a recording / reproducing step of recording / reproducing information on / from a recording medium and a non-stationary operation without recording / reproducing information. Causing the information processing apparatus to execute a process including an execution step executed based on control from the apparatus, compressing the information, supplying the information to the recording / reproducing step, and expanding the information compressed in the recording / reproducing step. The present invention provides a computer-readable program for executing a process including an information decompression step for performing an information decompression step and a control step for controlling an unsteady operation of the recording medium driving device without recording or reproducing information.

A recording medium driving device according to claim 16 is
A recording / reproducing means for recording or reproducing information on or from a recording medium, and when an error occurs in a seek or recording or reproducing operation, based on the number of re-executions or the maximum number of executable times managed by the information processing apparatus. , Seek, or executing means for re-executing the recording or reproducing operation.

According to a twentieth aspect of the recording medium driving method,
A recording / reproducing step of recording or reproducing information on or from a recording medium, and a seek or, when an error occurs in the recording or reproducing operation, based on the number of re-executions or the maximum number of executable times managed by the information processing apparatus. , Seek, or an execution step of re-executing a recording or reproducing operation.

The providing medium according to the present invention is managed by an information processing apparatus when a recording / reproducing step for recording or reproducing information on or from a recording medium and an error occurs in a seek operation or a recording or reproducing operation. A computer-readable program for executing a process including a seek or an execution step of re-executing a recording or reproducing operation based on the number of times of re-execution or the maximum number of executable times.

In the information processing apparatus according to the present invention, an error occurs in a transfer means for transmitting and receiving information to be recorded or reproduced with the recording medium driving apparatus, and in an operation of seeking or recording or reproduction in the recording medium driving apparatus. In this case, the recording medium driving apparatus further includes a control unit that controls the number of times of seeking or re-execution of recording or reproduction or the maximum number of executable times.

In the information processing method according to the present invention, an error occurs in a step of transmitting and receiving information to be recorded or reproduced with the recording medium driving device, and an error occurs in a seek or recording or reproduction operation in the recording medium driving device. In this case, the method includes a control step of controlling the number of times of re-execution or the maximum number of re-executions of seek or recording or reproduction of the recording medium driving device.

According to a twenty-fourth aspect of the present invention, in the present invention, there is provided a transmitting / receiving step for transmitting / receiving information to be recorded / reproduced to / from a recording medium driving device, and when an error occurs in a seek or recording / reproducing operation in the recording medium driving device. A computer readable program for executing a process including a control step of controlling the number of re-executions or the maximum number of re-executions of recording or reproduction of a recording medium driving device.

In the information recording / reproducing system according to the twenty-fifth aspect, the recording medium driving device has an error in a recording / reproducing means for recording or reproducing information on or from a recording medium, and an error has occurred in a seek operation or a recording or reproducing operation. In the case, based on the number of times of re-execution or the maximum number of executable times managed by the information processing device, based on the seek, or execution means for re-executing the operation of recording or reproduction, the information processing device compresses the information, An error has occurred in the information compression means to be supplied to the recording and reproduction means, the information decompression means for expanding the compressed information supplied from the recording and reproduction means, and the seek or recording or reproduction operation in the recording medium drive. Control means for controlling the number of re-executions or the maximum number of re-executions of seek or recording or reproduction of the recording medium driving device. And wherein the door.

An information recording / reproducing method according to claim 27,
An information recording / reproducing method of a recording medium driving device includes a recording / reproducing step of recording or reproducing information on or from a recording medium, and a seek / reproducing operation managed by the information processing device when an error occurs in a recording or reproducing operation. An execution step of re-executing a seek operation or a recording or reproduction operation based on the number of times of execution or the maximum number of executable times. The information recording / reproducing method of the information processing apparatus compresses information and supplies the information to the recording / reproducing step. Information compression step,
An information decompression step for decompressing the compressed information supplied from the recording / reproduction step, and a seek in the recording medium drive, or a seek or recording of the recording medium drive if an error occurs in the recording or reproduction operation. Or a control step of controlling the number of re-executions of reproduction or the maximum number of executable times.

According to the present invention, there is provided a recording medium, comprising: a recording / reproducing step of recording / reproducing information on / from a recording medium; and a seek operation or a recording / reproducing operation. Based on the number of times of re-execution or the maximum number of executable times managed by the information processing apparatus, a process including a seek or an execution step of re-executing a recording or reproducing operation is executed, and the information processing apparatus compresses information. The information compression step supplied to the recording / reproducing step, the information decompression step for decompressing the compressed information supplied from the recording / reproducing step, and an error in seek or recording or reproduction operation in the recording medium drive. If this occurs, the number of seeks of the recording medium drive or the number of re-executions or maximum Wherein the computer to execute a process including the Gosuru control step provides a program readable.

The recording medium driving device according to claim 29,
A recording / reproducing unit for recording or reproducing information on or from a recording medium, and a process of replacing a defective data recording area on the recording medium with a non-defective data recording area under the control of the information processing apparatus. Means.

A recording medium driving method according to claim 33,
A recording / reproducing step of recording or reproducing information on or from a recording medium, and a process of replacing a data recording area having a defect on the recording medium with a data recording area having no defect,
And an execution step executed under the management of the information processing apparatus.

According to a thirty-fourth aspect, the present invention provides a recording medium, comprising: a recording / reproducing step of recording or reproducing information on or from a recording medium; and a data recording area having a defect on the recording medium.
A computer readable program for executing a process including an execution step of executing a process of replacing a data recording area with no defect under the control of an information processing apparatus is provided.

According to a thirty-fifth aspect of the present invention, there is provided an information processing apparatus comprising: a transmitting / receiving means for transmitting / receiving information to be recorded / reproduced to / from a recording medium driving device; and a data recording area having a defect on a recording medium of the recording medium driving device. And control means for controlling a process of replacing the data recording area with a data recording area having no data.

According to a thirty-sixth aspect of the present invention, there is provided an information processing method, comprising: a step of transmitting and receiving information to be recorded or reproduced to and from a recording medium driving device; And a control step of controlling a process of replacing the data recording area with a data recording area having no data.

According to a thirty-seventh aspect of the present invention, in the providing medium, a transmitting / receiving step of transmitting / receiving information to be recorded / reproduced to / from the recording medium driving device and a defective data recording area on the recording medium of the recording medium driving device are performed. And a control step of controlling a process of replacing a data recording area with a non-data recording area.

The information recording / reproducing system according to claim 38, wherein the recording medium driving device includes a recording / reproducing means for recording or reproducing information on or from the recording medium, and a data recording area having a defect on the recording medium. Execution means for executing a process of replacing a data recording area with no data under the control of the information processing apparatus, wherein the information processing apparatus compresses information and supplies the information to the recording / reproduction means; Information expanding means for expanding the compressed information supplied from the control means, and control means for controlling a process of replacing a defective data recording area on a recording medium of the recording medium driving device with a defect-free data recording area. And characterized in that:

The information recording / reproducing method according to claim 40,
The information recording / reproducing method of the recording medium driving device includes a recording / reproducing step of recording / reproducing information on / from a recording medium and a process of replacing a data recording area having a defect on the recording medium with a data recording area having no defect. Including an execution step performed under the control of the information processing apparatus, the information recording and reproducing method of the information processing apparatus, the information compression step of compressing the information to supply to the recording and reproducing step, supplied from the recording and reproducing step, An information decompression step of decompressing the compressed information; and a control step of controlling a process of replacing a defective data recording area on the recording medium of the recording medium driving device with a defect-free data recording area. Features.

According to a 41st aspect of the present invention, there is provided a recording medium, comprising: a recording / reproducing step of recording / reproducing information on / from a recording medium; and a data recording area having a defect on the recording medium. An information compression step of causing the information processing apparatus to perform processing including an execution step of executing the processing for replacing the data recording area under the management of the information processing apparatus, compressing the information, and supplying the information to the recording / reproducing step; An information decompression step of decompressing the compressed information supplied from the reproduction step and a process of replacing a defective data recording area on the recording medium of the recording medium drive with a defect-free data recording area are controlled. A computer-readable program for executing a process including a control step is provided.

In the recording medium driving apparatus according to the first aspect, the recording medium driving method according to the seventh aspect, and the providing medium according to the eighth aspect, the non-stationary operation that does not involve recording or reproducing of information is performed by: It is executed under the control of the information processing device.

[0045] The information processing apparatus according to claim 9, wherein
In the information processing method according to the first aspect and the providing medium according to the eleventh aspect, the non-stationary operation of the recording medium driving device that does not involve recording or reproducing information is controlled.

In the information recording / reproducing system according to the twelfth aspect, the information recording / reproducing method according to the fourteenth aspect, and the providing medium according to the fifteenth aspect, the recording / reproduction of the information by the recording medium driving device is not involved. The unsteady operation is controlled by the information processing device.

A recording medium driving device according to claim 16, a recording medium driving method according to claim 20, and a recording medium driving method according to claim 21.
In the provision medium described in the above, when an error occurs in the seek or recording or reproduction operation, the seek or the recording or reproduction operation is performed based on the number of re-executions or the maximum executable number managed by the information processing device. The operation is performed again.

In the information processing apparatus described in claim 22, the information processing method described in claim 23, and the providing medium described in claim 24, the seek or the recording or reproducing operation in the recording medium driving device has an error. Occurs, the number of seeks or re-executions of recording or reproduction or the maximum number of executable times is controlled.

In the information recording / reproducing system according to the twenty-fifth aspect, the information recording / reproducing method according to the twenty-seventh aspect, and the providing medium according to the twenty-eighth aspect, the recording medium driving device can perform seek or recording or reproducing. The information processing apparatus controls the number of seeks or the number of re-executions of recording or reproduction or the maximum number of executable times when an error occurs in the operation.

A recording medium driving device according to claim 29, a recording medium driving method according to claim 33, and claim 34.
In the providing medium described in (1), a process of replacing a defective data recording area on the recording medium with a non-defective data recording area is executed under the control of the information processing apparatus.

In the information processing apparatus according to claim 35, the information processing method according to claim 36, and the providing medium according to claim 37, a data recording area having a defect on the recording medium of the recording medium driving device. Is replaced with a data recording area having no defect.

In the information recording / reproducing system according to claim 38, the information recording / reproducing method according to claim 40, and the providing medium according to claim 41, data having a defect on the recording medium of the recording medium driving device is provided. The process of replacing the recording area with a data recording area having no defect is controlled by the information processing device.

[0053]

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 recording medium driving device according to the first aspect of the present invention includes a recording / reproducing means (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1). And an execution unit (for example, the CPU 28 in FIG. 1) for executing the unsteady operation without recording or reproducing the information under the control of the information processing apparatus (for example, the host 20 in FIG. 1).

According to a ninth aspect of the present invention, there is provided an information processing apparatus comprising: a recording medium driving device (for example, the HDD 40 in FIG. 1); and a transmitting / receiving means (for example, the memory control circuit 5 in FIG. 1) for transmitting and receiving information to be recorded or reproduced. And a control unit (for example, the CPU 14 in FIG. 1) for controlling an unsteady operation of the recording medium driving device without recording or reproducing information.

In the information recording / reproducing system according to the twelfth aspect, the recording medium driving device (for example, the HDD 40 in FIG. 1)
A recording / reproducing unit (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1) and an unsteady operation without recording or reproducing information are performed by an information processing apparatus. Execution means (for example, the host 20 shown in FIG. 1) that executes based on control from the host (for example, FIG. 1)
CPU 28), the information processing apparatus compresses the information,
Information compression means (for example, the image information compressor 3 in FIG. 1) for supplying to the recording / reproducing means;
Information decompression means for decompressing compressed information (for example,
It is characterized by comprising an image information decompressor 9 in FIG. 1 and control means (for example, the CPU 14 in FIG. 1) for controlling an unsteady operation of the recording medium driving device without recording or reproducing information.

A recording medium driving device according to claim 16 is
A recording / reproducing unit (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1) is used. An execution unit (for example, the CP of FIG. 1) that re-executes a seek operation or a recording or reproducing operation based on the number of re-executions or the maximum number of executable times managed by a processing device (for example, the host 20 of FIG. 1).
U28).

In the information recording / reproducing system according to the twenty-fifth aspect, the recording medium driving device (for example, the HDD 40 in FIG. 1)
A recording / reproducing unit (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1) is used. An execution unit (for example, the CP of FIG. 1) that re-executes a seek operation or a recording or reproducing operation based on the number of re-executions or the maximum number of executable times managed by a processing device (for example, the host 20 of FIG. 1).
U28), the information processing apparatus compresses the information and supplies the information to the recording / reproducing means (for example, the image information compressor 3 in FIG. 1), and the compressed information supplied from the recording / reproducing means. Information decompressing means (for example, the image information decompressor 9 in FIG. 1) for decompressing information stored therein, and seek in the recording medium driving device, or seek of the recording medium driving device when an error occurs in the recording or reproducing operation, or A control unit (for example, CPU 14 in FIG. 1) for controlling the number of re-executions or the maximum number of re-executions of recording or reproduction is provided.

A recording medium drive according to claim 29 is
A recording / reproducing unit (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1) and a data recording area having a defect on the recording medium An execution unit (for example, the CPU 28 in FIG. 1) that executes processing for replacing the recording area under the control of the information processing apparatus (for example, the host 20 in FIG. 1) is provided.

An information processing apparatus according to a thirty-fifth aspect includes a recording medium driving device (for example, the HDD 40 in FIG. 1) and a transmitting / receiving means (for example, the memory control circuit 5 in FIG. 1) for transmitting and receiving information to be recorded or reproduced. A control means (for example, CPU 14 in FIG. 1) for controlling a process of replacing a defective data recording area on a recording medium (for example, the disk 35 in FIG. 1) of the recording medium driving device with a defect-free data recording area. And characterized in that:

In the information recording / reproducing system according to claim 38, the recording medium driving device (for example, the HDD 40 in FIG. 1)
A recording / reproducing unit (for example, the head 25 in FIG. 1) for recording or reproducing information on or from a recording medium (for example, the disk 35 in FIG. 1) and a data recording area having a defect on the recording medium An execution unit (for example, the CPU 28 in FIG. 1) for executing the process of replacing the recording area under the control of the information processing device (for example, the host 20 in FIG. 1), the information processing device compresses the information, An information compression means (for example, the image information compressor 3 in FIG. 1) for supplying the recording and reproduction means, and an information decompression means (for example, the image information in FIG. 1) for expanding the compressed information supplied from the recording and reproduction means Decompressor 9) and control means for controlling a process of replacing a defective data recording area on the recording medium of the recording medium driving device with a defect-free data recording area (for example, the CPU of FIG. 1).
14).

Hereinafter, an information recording / reproducing system to which the present invention is applied will be described. In the following example, a fixed HDD will be described as a typical example. However, it is needless to say that the present invention can be applied to a removable HDD in which a disk is replaceable or another magnetic disk device.

FIG. 1 shows a configuration example of a digital image disk recorder as an information recording / reproducing system to which the present invention is applied. The AV encoder 1-1 of the first channel (Ch. 1) converts the input image signal into, for example, MPEG
Information compressor 3 that compresses (encodes) the audio signal in accordance with the MPEG method, audio information compressor 4 that compresses (encodes) the corresponding audio signal input in the MPEG format, and combines the outputs of the image information compressor 3 and the audio information compressor 4 Multiplexer (MU
X) 2. Similarly to the first channel AV encoder 1-1, the second channel (Ch.2) AV encoder 1-2 is provided. Although not shown, this AV encoder 1-2 is also provided with the first channel AV encoder 1-2. It has an image information compressor for compressing the image signal of the second channel, an audio information compressor for compressing the audio signal of the second channel, and a multiplexer for multiplexing the compressed signals.

The signal output from the AV encoder 1-1 or the AV encoder 1-2 is input to the memory control circuit 5. The memory control circuit 5 is also configured to receive compressed video and audio data of the third channel (Ch. 3) already compressed by a device (not shown).

The memory control circuit 5 includes a host memory 12
The host memory 12 stores at least data for one cluster as a unit to be recorded or reproduced on a magnetic disk 35 (hereinafter, simply referred to as a disk 35) as a hard disk. Has been made. The memory control circuit 5 includes the AV encoder 1
-1, 1-2, or the compressed video and audio data input in an already compressed state is supplied to the host memory 12 and stored therein, and then the AV-interface (I / F) ) 17 to the HDD 40 via the host interface bus 18. Further, the memory control circuit 5 temporarily stores the reproduction data input from the HDD 40 via the host interface bus 18 and the AV interface 17 in the host memory 12 and then reads out the data as appropriate, and reads out the data appropriately.
1, 6-2, or directly to a device (not shown).

The AV decoder 6-1 of the first channel
A demultiplexer (DE) that separates video data and audio data from the compressed video audio data input from the memory control circuit 5 and outputs them to the interpolation circuit 8 and the interpolation circuit 10, respectively.
MUX) 7. The interpolation circuit 8 interpolates an error of the compressed video data input from the demultiplexer 7 and outputs the error to the image information decompressor 9. The image information decompressor 9
The decompression process corresponding to the image information compressor 3 is performed, and the decompressed image signal is output to a device (not shown). The interpolation circuit 10 interpolates an error in the audio data input from the demultiplexer 7 and outputs the error to the audio information expander 11. The acoustic information decompressor 11 includes the acoustic information compressor 4
The audio information input in a method corresponding to the above is expanded and output to a device (not shown).

Although not shown, the AV decoder 6-2 also
Like the AV decoder 6-1, it includes a demultiplexer, an interpolation circuit, an image information expander, and an audio information expander.

In this example, one HDD 40 is connected to the host 20 via the host interface bus 18 so that compressed video / audio data of three channels can be simultaneously recorded or reproduced. As the host interface bus 18, for example, ANSI (American National Stan
dards Institute)
e Electronics) standard (ATA (AT Attachment) standard) is used. The operation of the entire disc recorder is
The firmware is managed by ROM16
And the RAM 15 is used as a work area of the CPU 14. As a user interface mechanism for giving an operation instruction from the user to the disk recorder and for notifying the user of the operation status from the disk recorder, a switch, a remote controller, a keyboard, a liquid crystal display device and the like (not shown) are provided. Is CP
U14 manages it.

The recording or reproduction instruction of the HDD 40 is issued by the CPU 1.
4 is performed by causing the AV-I / F 17 to issue a Write instruction or a Read instruction defined in the extended IDE standard via the CPU bus 13. The CPU 14 transfers data between the host 20 and the HDD 40 by the memory control circuit 5 and the AV-I /
This is executed by instructing F17.

The HDD 40 has a hard disk controller (HDC) 21. The HDC 21 temporarily records the data input via the host interface bus 18 in the buffer memory 22 and then reads out the data as appropriate. In addition to supplying the data to the recording channel signal processing circuit 23 and temporarily storing the reproduction data supplied from the reproduction channel signal processing circuit 27 in the buffer memory 22, this is read out as appropriate and output via the host interface bus 18. Has been made.

The recording channel signal processing circuit 23 modulates the input data by a predetermined modulation method,
4, a magnetic head (hereinafter simply referred to as a head)
25 to be recorded on a disk 35.

The head 25 reproduces data recorded on the disk 35 and outputs the data to the reproduction channel signal processing circuit 27 via the amplifier 26. The reproduction channel signal processing circuit 27 demodulates the input data by a method corresponding to that in the recording channel signal processing circuit 23 and outputs the data to the HDC 21.

The CPU 28 controls the HDC 2 via the CPU bus 29.
1, the reproduction channel signal processing circuit 27, the recording channel signal processing circuit 23, and the like.
The servo DSP (digital signal processor) 30 generates a servo signal based on the reproduction data input from the reproduction channel signal processing circuit 27 and outputs the servo signal to the voice coil motor (VCM) 32 via the amplifier 31. ing. The VCM 32 moves (seeks) the head 25 in the radial direction of the disk 35 in response to the input signal.
Then, the head 25 is positioned on a predetermined track of the disk 35.

The spindle motor (SPM) controller 33 includes:
A control signal is generated based on the FG signal and PG signal output from the spindle motor (SPM) 34, and the spindle motor 3
4 is rotated at a predetermined speed.

FIG. 2 shows a hierarchical structure of firmware stored in the ROM 16 and executed by the CPU 14. The lower first layer includes a user I / F section for inputting and outputting to and from the user interface mechanism, an MPEG2 encoder / decoder operation management section,
Instruct the memory control circuit 5 to send the AV
A host memory management unit that writes and reads data streams and clusters, and an HDD device driver are provided. The upper second layer is provided with system management software that manages the first layer and controls the operation of the entire disc recorder. The functions of the system management software include the functions required for the digital video disk recorder, such as instructing and managing the recording and playback operations of each channel, and grasping and managing the operating status of each hardware resource such as the HDD 40 and the host memory 12. Of these, all that are not included in the first layer are included.

First, the flow of signals during recording in the entire digital moving picture disk recorder will be described. In the first channel (Ch.1), an analog image signal (for example, NTSC signal) input from the outside is digitized by the image information compressor 3 and then the data rate is compressed to about 1/5. . Image information compression methods include DV and MPEG
2 and the like have been put into practical use, and the amount of information is compressed by performing discrete cosine transform, inter-frame motion detection, requantization, two-dimensional Huffman coding, and the like on the original digital video information. Analog audio signals input simultaneously from the outside are also digitized by the audio information compressor 4 and the data rate is compressed. The compressed video information and audio information are multiplexed by the MUX 2 to form an AV data stream. In this case, MPEG is used as the video information compression method.
The data rate of the AV data stream is 8Mb using two methods
Let it / s.

This AV data stream is temporarily recorded in the host memory 12 via the memory control circuit 5 once.
The CPU 14 issues an instruction to the memory control circuit 5 according to the host memory management unit of the firmware, and
A cluster, which is a set of data to be recorded on the HDD 40, is read out from the HDD, sent to the HDD 40 via the host interface bus 18 via the AV-I / F 17, and recorded.

FIG. 3 shows a relationship between a cluster and a GOP (Group of Picture) defined in an MPEG2 data stream. In the example of FIG. 3, a cluster is a set of data obtained by dividing a GOP into four. The GOP consists of 15 frames of images, and one frame is equivalent to 1/30 second.
One GOP is equivalent to 0.5 seconds, and the data amount is 4 Mbit. Therefore, the data amount of one cluster obtained by dividing it into eight is 1 Mbit, and the sector size of the HDD 40 is 512 Byt.
e (4096 bits), which corresponds to a data amount of about 256 sectors. That is, each time the HDD 40 receives a recording command from the host 20, the HDD 40 continuously records the AV data stream in about 256 sectors.

The operation of the HDD 40 at the time of recording is as described below. For simplicity, a case where only one data stream of Ch. 1 is recorded as shown in FIG. 4 will be described as an example.

The CPU 14 controls the HDD 4 so that one cluster to be recorded is recorded as a data block of a predetermined length from a predetermined logical block address of the HDD 40.
Send command to 0. The HDC 21 inside the HDD 40 receives this command and converts the logical block address into a physical address (disk surface number, track number, sector number, etc.) inside the HDD 40 in cooperation with the CPU 28. Subsequently, data for one cluster (for example, data for 256 sectors) sent from the host memory 12 is received by the HDC 21 via the host interface bus 18 and temporarily stored in the buffer memory 22.

The HDC 21 transfers this data to the logical data sector set on the track of the HDD 40 (512 bytes).
Before and after that, a data sector is formed by adding a preamble pattern or an error correction code for synchronizing bits at the time of reading, and is sent out to the recording channel signal processing circuit 23 in synchronization with the disk rotation. The recording channel signal processing circuit 23 performs channel coding on the data sector, and converts the data sector into a binary sequence suitable for the characteristics of the magnetic recording channel including the head 25 and the disk 35. This binary sequence is converted by the amplifier 24
The recording is correlated with the rectangular recording current waveform and recorded by the head 25 as a magnetization reversal pattern on the magnetic disk 35.

Here, since it is necessary to position the head 25 in advance on the target track to be recorded,
The servo DSP 30 having received the target track number from the CPU 21 and the CPU 28 receives the track number on the disk surface from the reproduction channel signal processing circuit 27, and
5 is moved to the physical address to perform positioning. In the above example, as shown in FIG. 4, the time available for recording one cluster is 125 ms, but the time required for the seek, rotation waiting operation (S1), and recording operation (W1) of the HDD 40 is:
Although it depends on the speed performance of the HDD, it is about 30 ms, and the remaining time is the remaining time (E).

Next, the flow of signals during reproduction will be described.

First, the system management software specifies the name of the AV data stream to be reproduced according to the input information from the user I / F section of the firmware, and specifies the name of the HDD on which each cluster constituting the stream is recorded. The logical block address is obtained, and the HDD device driver issues a read command defined on the host interface bus 18 (for example, IDE-I / F) to read the cluster. At the same time, the host memory management unit causes the host memory 12 to reserve a storage area for reconfiguring the cluster through the memory control circuit 5.

The read command issued on the IDE-I / F is given to the CPU 28 via the HDC 21 of the HDD 40. The CPU 28 assigns the logical block address of the cluster to the physical address of the disk 35 (disk surface number,
Track number, sector number, etc.)
0 to move the head 25 to that physical address,
Start reading data. That is, disk 3
The magnetization reversal pattern recorded on 5 is read out by the head 25, amplified by the amplifier 26, and bit-synchronized by the reproduction channel signal processing circuit 27.
It is detected as a binary data sequence, decoded as an inverse transform of channel coding performed at the time of recording, and reproduced as a data sector.

The data sector is sent to the HDC 21 and, after error correction decoding, sequentially stored as logical data in units of 512 bytes in the buffer memory 22, via the host interface bus 18 and the memory control circuit 5. The data is sequentially transferred to the host memory 12 to form one cluster. When the reading of one cluster is completed, the reading of the subsequent cluster is similarly commanded, and the HDD 40
Then, the data sector group is read, and a subsequent cluster is formed on the host memory 12. The formed cluster is
Sequentially read out, and as an AV data stream, for example C
This is given to the AV decoder 6-1 for h.1.

This AV data stream is separated by the demultiplexer 7 into video data and audio data. When an error exists in the video data, the video data is passed through an interpolation circuit 8 for interpolating the data before and after the video data.
Thus, the image data is expanded into ordinary digital image information. This image information is converted into an NTSC analog video signal by a D / A converter or the like, and is provided to an external monitor or the like.

The signal flow for recording and reproducing compressed image data for only Ch. 1 has been described above. The second channel (Ch. 2) and the third channel (Ch. 3) have been described. When recording or reproducing a plurality of data streams including the data of (1), the following is performed.

FIG. 5 shows an example of a timing chart when the Ch.1 data stream is recorded and the Ch.2 data stream is reproduced at the same time. Only one cluster can be recorded or reproduced on the HDD 40 at a time. Therefore, when processing these two-channel clusters,
Recording or reproduction is performed alternately. For example, to access the area where the cluster (k, 1) of Ch. 1 is to be recorded,
Performs seek and rotation wait (S1) and records cluster (k, 1) (W
1) do. Next, seek and rotation wait (S2) are performed with the idle time (E) interposed to reproduce the Ch.2 cluster. This seek operation is necessary because the clusters of these different channels usually exist on tracks of completely different radii on the disk surface. Next, the cluster (k, 1) is reproduced (R2). Thereafter, these series of operations are repeated. In the example of FIG. 5, even if two channels are simultaneously recorded / reproduced on one HDD 40, the spare time (E) remains.

FIG. 6 shows three channels (Ch.1, Ch.2, C
Here is an example of a timing chart when h.3) is recorded simultaneously. From the host 20, the Ch.1 AV encoder 1-
1 generated data stream and Ch.2 encoder 1
3 and the data stream of the input of Ch. 3 are temporarily stored in the host memory 12 via the memory control circuit 5. Each of these three data streams is divided into clusters, and the HDDs are alternately operated by a Write instruction on the host interface bus 18.
Recorded at 40. The HDD 40 records only the cluster of one channel at a time, and proceeds with the recording of three channels alternately, as in the case of the two-channel simultaneous operation of FIG.

In this case, as shown in FIG.
Is busy with seek and recording operations, and the free time (E) is very short. In this way, the disk recorder is
When recording or reproducing at the same time with the maximum number of channels permitted by the speed performance, it is difficult to secure a long free time.

As can be seen from the above description of the operation of the disk recorder, the operation status of the HDD 40 changes depending on the number of channels handled by the disk recorder at that time. That is, in the example of the recorder capable of simultaneous recording / reproduction of up to three channels, the HDD 40 has only a small spare time when the three channels are operated at the same time. Exists. Further, in an actual use situation, the disk recorder does not always operate at the maximum possible number of channels, and the number of operating channels is always reduced, or there is a case where the disk recorder enters a pause state in which recording / reproduction is not performed at all. Since the system management software of the disk recorder knows the operation status of the disk recorder, such as the number of operation channels, it can also know the status of the idle time of the HDD 40.

Therefore, according to the present invention, in the disk recorder, the HDD 40 has an idle time or an idle time.
Also, paying attention to the fact that the system management software on the host 20 side grasps the status of the idle time, the HDD 40 operates the four types of unsteady operations ((( The host 20 controls so that the unsteady processes (1) to (4)) can be executed as much as possible.

For this reason, the host interface bus 18
In the above, a command instructing execution by the host 20 is provided for each non-stationary operation. Or host 2
0 is provided with a command for periodically asking for an execution request of an operation such as thermal calibration or patrol seek. With these commands, the host 20 and the HDD 40 can communicate with each other with respect to the execution of the non-stationary operation, and the non-stationary operation necessary for maintaining and managing the reliability of the HDD 40 is performed as long as the operation status of the disk recorder permits. , Can be executed under the control of the host 20.

The following describes an example of processing in the case where the host 20 manages execution of the above four types of unsteady operations.

First, the HDD 40 performs a self-diagnosis process (thermal calibration) for responding to a temperature change.
First case when executing according to the instruction issued by host 20
An example of the operation will be described.

FIG. 7 shows a configuration of a newly defined thermal calibration command 120 issued by the host 20 when executing the thermal calibration. The command identification code (for example, 80h) indicating the thermal calibration operation is specified in the Command register 106, and the maximum allowable execution time information of the command 120 and the thermal calibration continuation specification bit are specified in, for example, the Features register 100. Of course, these pieces of information can be separately sent to the HDD 40 as data.

The maximum allowable execution time information is the command 1
20 is the maximum time allowed to perform
The CPU 28 in the HDD 40 receiving the command 120
Even if the thermal calibration operation does not end, when the maximum allowable time has elapsed, the thermal calibration process is interrupted and the execution of the command is ended. The thermal calibration continuation bit is set when such interrupted thermal calibration processing is continued. When the bit is reset, the thermal calibration processing is performed from the beginning.

The HDD 21 and the CPU 28 in the HDD 40
When the command 120 is received from the PU 14, the thermal calibration process is performed as follows according to the flowchart shown in FIG.

The CPU 28 instructs the servo DSP 30 to start and continue the thermal calibration process in accordance with the thermal calibration continuation designation information designated by the Features register 100 of the command 120. Further, the CPU 28 starts measuring the processing time of the command 120. When the continuation is specified, the CPU 28 and the servo DSP 30 take out the information necessary for restarting the thermal calibration process, which is saved in the respective memories at the end of the previous thermal calibration command, and perform the thermal calibration process. Resume. If the continuation is not specified, a new thermal calibration process is started (step S
1).

Next, the CPU 28 checks whether the processing time of the command 120 (measurement started in step S1) does not exceed the maximum allowable execution time specified in the Features register 100 of the command 120. If the processing time exceeds the maximum allowable execution time, control is transferred to step S5, and if not, control is transferred to step S3 (step S2).

The command processing time corresponds to the command 120
If it does not exceed the maximum allowable execution time specified in the Features register 100, the CPU 28
It is checked whether 0 has completed the thermal calibration process. If the processing has been completed, the process proceeds to step S4. If not, the process returns to step S2 (step S3).

The command processing corresponds to the Fe of the command 120.
If the processing has been completed within the maximum allowable execution time specified in the atures register 100, the CPU 28 transmits status information indicating that the thermal calibration processing has been completed to the host 20, and ends the execution of the command 120 (step S4).

If the command processing does not end within the allowable time specified by the command 120, the CPU
Reference numeral 28 instructs the servo DSP 30 to interrupt the thermal calibration process, transmits status information indicating that the thermal calibration has been interrupted to the host 20 to the host 20, and terminates the execution of the command 120 (step S28). S5). The servo DSP 30 instructed to suspend the thermal calibration process saves information necessary for restarting the thermal calibration in a memory inside the servo DSP 30.

At the end of the command 120, the CPU 28
The host 20 is also notified of logical block address information indicating the current position of the head 25 on the disk 35.

By performing the above processing, the thermal calibration processing, which conventionally required a long time, can be performed.
The process is divided into a plurality of processes so that the processes can be performed within the idle time of the host 20, and each of the divided processes can be completed within the allowable time specified by the host 20.
Therefore, when the host 20 supplies and records continuous AV data to the HDD 40, the HDD 40 performs thermal calibration, and the AV data cannot be recorded, that is, It is prevented that the real-time property is impaired.

When the HDD 40 notifies the host 20 of the status and the logical block address information, for example, a format having a configuration as shown in FIG. 9 can be used. This format is defined in ATA.

The thermal calibration process performed by the CPU 14 of the host 20 using the thermal calibration command 120 defined as above is shown in FIG.
The flowchart shown in FIG.

The CPU 14 measures the operation time since the start of the HDD 40, and a predetermined time (for example, 30 minutes) has elapsed since the previous thermal calibration was executed, and a new thermal calibration process is performed. It is determined whether it is timing. In addition, as described below, even when the thermal calibration command executed immediately before is interrupted, it is the timing for performing the thermal calibration process, so it is determined whether or not it is the timing (step S11). If it is determined that it is time to execute the thermal calibration process, the CPU 14 determines whether there is enough free time for the HDD 40 to execute the thermal calibration process (step S12). If it is determined in step S11 that the thermal calibration is not to be performed, or if it is determined in step S12 that there is not enough free time to perform the thermal calibration process, the CPU 14 performs a normal AV stream data transfer process ( Step S13). That is, in this case, the HDD
AV data is recorded or reproduced with respect to 40.

The CPU 14 has a flag (referred to as a TC flag) indicating the processing status of the thermal calibration process in the RAM 15. For example, if the TC flag is set, the process is interrupted halfway by the thermal calibration command 120 issued immediately before (step S17). If the TC flag is reset, the process ends. (Step S1
8). If the TC flag is set, the CPU 14
The thermal calibration command 120 is issued by setting the continuation bit of the features register 100 and designating the idle time as the maximum allowable execution time. If the TC flag has been reset, the CPU 14 resets the continuation bit of the Features register 100, and issues the thermal calibration command 120 with the idle time designated as the maximum allowable execution time (step S14).

Since the command 120 issued in step S14 ends at the latest within the maximum allowable time specified in the Features register 100, the CPU 14 waits for the end (step S15). As described above, when the processing ends, the HDD 40 sends the end status information of the thermal calibration operation. CPU
In accordance with this information, the CPU 14 determines whether the thermal calibration process has been completed (step S16). If the process has been completed, the TC flag in the RAM 15 is reset (step S18). If interrupted, a TC flag is set (step S17). As described above, when the thermal calibration command is issued next time, the TC flag is referred to in step S14 in order to determine whether to continue or newly execute the thermal calibration process.

A second operation example when the HDD 40 executes a self-diagnosis process (thermal calibration) for responding to a temperature change in accordance with a command issued by the host 20 will be described.

In the first example, the HDD 40 measures the thermal calibration processing time and stops the processing. In the second example, the measurement of the processing time and the stop of the processing are also performed by the host 20, and the other configurations are the same as those in the first example.

FIG. 11 shows a newly defined thermal calibration start command 1 for this second example.
21 shows the configuration of the second embodiment. The command identification code (for example, 80h) indicating the start of the thermal calibration operation is
The command 12 specified in the Command register 106
One thermal calibration continuation designation bit is designated in the Features register 100, for example. The thermal calibration continuation bit has the same meaning as the same bit of the command 120.

The HDD 21 and the CPU 28 in the HDD 40
When the command 121 is received, the thermal calibration start processing is performed as follows according to the flowchart shown in FIG.

The CPU 28 instructs the servo DSP 30 to start and continue the thermal calibration process in accordance with the thermal calibration continuation designation information designated by the Features register 100 of the command 121. When the continuation is specified, the CPU 28 and the servo DSP 30 take out the information necessary for restarting the thermal calibration process, which is saved in the respective memories at the end of the previous thermal calibration command, and perform the thermal calibration process. Resume. If continuation is not specified, a new thermal calibration process is started (step S31).

The thermal calibration process is started,
Alternatively, when the command 121 is restarted, the execution of the command 121 ends. The execution of the command ends, but the thermal calibration process is continued.

FIG. 13 shows a thermal calibration end command 1 newly defined for the second operation example.
22 is shown. The command identification code (for example, 81h) indicating the end of the thermal calibration operation is
It is specified in the Command register 106.

The HDD 21 and the CPU 28 in the HDD 40 are:
When the command 122 is received, the thermal calibration end processing is performed as follows according to the flowchart shown in FIG.

The CPU 28 checks whether the servo DSP 30 has completed the thermal calibration process. If the processing has been completed, the process proceeds to step S42, and if not, the process proceeds to step S43 (step S41).

When the servo DSP 30 has completed the thermal calibration processing, the CPU 28 transmits status information indicating that the thermal calibration processing has been completed to the host 20, and terminates the execution of the command 122 (step S42). If the servo DSP 30 has not completed the thermal calibration process, the CPU 2
8 instructs the servo DSP 30 to interrupt the thermal calibration process, transmits status information indicating that the thermal calibration has been interrupted to the host 20, and ends the execution of the command 122 (step S43). The servo DSP 30 instructed to interrupt the thermal calibration process sends information necessary for restarting the thermal calibration to the servo DSP 3.
0 Save to internal memory. At the end of the command 122, the host 20 is also notified of logical block address information indicating the current position of the head 25 on the disk 35.

The CPU 14 of the host 20 executes the thermal calibration start command 12 as defined above.
When the thermal calibration process is performed using the command 1 and the thermal calibration end command 122, the process proceeds according to the flowchart shown in FIG. Steps S51 to S53 in FIG.
The processes of 57 to S59 are the same as the processes of steps S11 to S13 and steps S16 to S18 in FIG. Also, the processing of steps S54 to S56 is the same as the processing of steps S14 and S15 in FIG.
In the example of FIG. 15, since the start and the end of the thermal calibration process are individually instructed from the host 20, it is determined in step S <b> 52 that the HDD 40 has enough time to execute the thermal calibration process. , The CPU 14 determines in step S54 that R
The calibration start command 121 is issued according to the TC flag in the AM 15. In step S55, the CPU 14 starts measuring the processing time, and when the processing time reaches a predetermined time set in advance, the CPU 14 proceeds to step S5.
Proceed to step 6 and complete the thermal calibration end command 1
Issue 22.

As described above, when the HDD 40 completes the thermal calibration process, it sends it to the host 2.
0 is notified. Therefore, the CPU 14 of the host 20 determines in step S57 whether or not the thermal calibration process has been completed in response to the notification from the HDD 40, and if completed, in step S58, the RAM 1
The TC flag in the RAM 15 is set, and if not completed, the TC flag in the RAM 15 is reset in step S59.

The other operations are the same as those in FIG.

Next, an example of the operation in the case where the HDD 40 executes a self-diagnosis process (patrol seek) for investigating defects at various points on the disk surface as needed according to a command issued by the host 20 will be described.

FIG. 16 shows Pa newly defined for this purpose.
The trol Seek (patrol seek) command 130 is shown. A command identification code (for example, 82h) indicating the Patrol Seek operation is specified in the Command register 106, and the Patrol Seek start logical block address is set to Secto.
r Number register 102, Cylinder Low register 10
3. Cylinder High register 104 and Device / He
The lower 4 bits of the ad register 105 are specified. Also,
The maximum allowable execution time of the command 130 is, for example, Feat.
ures register 100. This information can be sent to the HDD 40 as other data. The maximum permissible execution time information is the permissible time for the execution of the command 130, and the HDD 4 that has received the command 130
After the maximum allowable time has elapsed since the start of execution of the Patrol Seek command, the CPU 28 within 0 stops the execution of the patrol Seek command and notifies the host 20 of the position information of the head 25 at the end.

The HDC 21 and the CPU 28 in the HDD 40 are:
When the command 130 is received, Patrol Seek processing is performed as follows according to the flowchart shown in FIG.

The CPU 28 determines whether the P
Patrol Seek is started from the atrol Seek start position to start collecting defect information, and at the same time, start measuring the processing time of the command 130 (step S71).

Subsequently, the CPU 28 executes the command
Processing time of the command 130 in the Features register 10
Check whether the maximum allowable execution time specified by 0 has been exceeded. If the processing time has reached the maximum allowable execution time, the control is moved to step S73.
The Patrol Seek process is continued until it reaches (Step S
72).

The command processing time corresponds to the command 130
If the maximum permissible execution time specified by the Features register 100 has been reached, the CPU 28 immediately ends the Patrol Seek processing, collects the defective sector information and the head 25 at the end.
Is notified to the host 20 in a predetermined format (FIG. 9) (step S73).

By performing the above-described processing, Patrol can be performed from an arbitrary position on the disk 35 for a designated time.
Seek processing can be performed.

The CPU 14 of the host 20 uses the Patrol Seek command 130 defined as described above to
When the ek process is performed, the process proceeds as follows according to the flowchart shown in FIG.

The CPU 14 determines whether or not there is an idle time (E in FIGS. 4 to 6) for performing Patrol Seek based on the operation status of the disk recorder, that is, the number of operation channels, the cluster size, and the like (step S81). Patrol S
If there is enough time to execute the eek process, the CPU 14
Specifies the idle time in the Features register 100 and
trol Seek command 130 is issued (step S8)
2). When it is determined that there is no free time (when it is determined that it is time to perform the transfer processing of the AV stream data), the data transfer processing is prioritized (step S85). After issuing the Patrol Seek command 130 in step S82, the CPU 14 waits for the HDD 40 to finish executing the command 130 (step S83). Command 13
Upon completion of the execution of 0, the defect information sent from the HDD 40 is stored in the RAM 15 for replacement processing of a defective sector described later (step S84).

The HDD 40 performs a self-diagnosis process (patrol seek) for checking the disk surface for defects at any time.
Second case of executing according to the instruction issued by host 20
An example of the operation will be described.

In the first example, the actual processing time of the Patrol Seek is measured and the processing is stopped by the HDD 40.
In the second example, the host 20 measures the processing time and stops the processing, and the rest is the same as the first example.

Similarly to the relationship between the first and second examples in the example of the thermal calibration processing, the Patrol Seek processing also includes two processing start and end commands.
Two new commands are defined.

FIG. 19 shows a newly defined Patrol Seek.
This shows the configuration of the start command 131. That is, the command 131 includes the Patrol Seek start address, P
Command identification code 83 indicating atrol Seek start command
h is described. HDC 21 and CPU in HDD 40
FIG. 20 is a flowchart showing the operation when the command 28 receives the command 131. That is, step S9
1, the HDDC 21 of the HDD 40 and the CPU 28
The ek process is started, and the processing time measurement process is started. This operation is basically the same as that in FIG.

FIG. 21 shows a newly defined Patrol Seek.
It shows the configuration of the end command 132. In the command 132, a command identification code 84h indicating the end of Patrol Seek is described. The operation when the HDC 21 and the CPU 28 in the HDD 40 receive the command 132 is shown in the flowchart of FIG. That is, in step S101, the HDD 21 and the CPU 28 of the HDD 40
Terminates execution of the atrol Seek command. Then, the host 20 is notified of the position of the head 25 at the end point.

The CPU 14 of the host 20 transmits the Patrol Seek start command 131 and the Patrol Seek start command 131 defined as described above.
FIG. 23 shows a flowchart when the Patrol Seek process is performed using the end command 132. In this example, the CPU 14 issues a Patrol Seek start command 131 in step S113, and starts a processing time measurement process in step S114. Then, when the processing time reaches a preset time, in step S115, the CPU 14 issues a Patrol Seek end command 132. Other processes are the same as those in FIG.

Next, a first operation example in the case where the allowable number of re-reads when an error exists in the reproduced data is specified from the host 20 will be described.

FIG. 24 shows a new setting for this purpose.
It shows the configuration of an AV mode setting command 160, and this command 160 is a command for setting an operation mode in writing and reading of AV stream data.
A command identification code (for example, 85h) that specifies the AV mode setting operation is specified in the Command register 106. The data (parameter) 161 sent from the CPU 14 of the host 20 to the HDD 40 as the data (parameter) of the command 160 is configured as shown in FIG. 25, and defines the operation mode when reading and writing AV stream data. Various parameters to be included. In the data 161, the number of retries permitted for one command during reproduction and recording is specified. For example, in the example of FIG. 25, the allowable number of read retries is specified in byte 0 of data 161 and the allowable number of write retries is specified in byte 1 of data 161. In FIG. 25, irrelevant parameters are not shown.

The HDC 21 and the CPU 28 in the HDD 40 are:
When the command 160 and the parameter 161 are received, the setting operation of the number of retries is performed as follows according to the flowchart shown in FIG. Operation parameter 161
Contains parameters for the AV mode operation in addition to the number of retries, but these processes are not shown in FIG.

The CPU 28 changes the value of the variable storing the maximum number of retries for reading and writing in the RAM area inside the CPU to the value specified by the parameter 161 of the command 160 (step S121). Thereafter, the CPU 28 executes the write or read command using the value of the variable as the allowable number of retries in reading and writing.

By performing the above processing, the host 2
By designating the allowable number of retries per command from 0, the host 20 can control an increase in the execution time per command.

The CPU 14 of the host 20 uses the AV mode setting command 160 defined as
In the case where AV stream data is transferred between 0 and 0, FIG.
The process proceeds as follows according to the flowchart shown in FIG.

The CPU 14 of the host 20 determines the number of retries for recording and reproducing data of a predetermined number of channels within a predetermined time in consideration of the current number of channels, idle time, cluster size, and the like (step S141). ). For example, FIG. 4 shows a case in which 256 sectors of data are written in 0.125 seconds because recording is performed on only one channel, and the vacant time E is large. Can be increased. FIG. 6 shows the case of simultaneous recording of three channels, and the vacant time E is clearly smaller than in the case of FIG. In such a case, the CPU 14 determines to reduce the number of retries.

Next, the CPU 14 of the host 20 issues a command 160 to set the maximum number of retries for the HDD 40 (step S142). Each time the execution environment changes, such as the number of recording / playback channels, idle time, and cluster size, the CPU 14 executes steps S141 and S142.
Is repeated to set the optimum number of retries (step S143).

A second operation example in which the host 20 indicates the allowable number of re-reads when an error exists in the reproduced data will be described.

FIG. 28 is a diagram showing an AV that is newly defined for this purpose.
The structure of the stream read command 162 is shown.
When an AV stream data transfer is performed by executing a read or write command, an allowable value of the number of retries that is valid only for the command is specified using, for example, the Feature register 100. In the command 162, similar to the ATA standard read command, the Sector Count register 10
1, the number of read sectors is stored in the Sector Number register 1
02, the reading start logical block address is specified in the lower 4 bits of the cylinder low register 103, the cylinder high register 104, and the device / head register 105. In the command 162, the command identification code (for example, 86h) indicating the AV stream data read processing is Co.
It is specified in the mmand register 106.

The HDC 21 and the CPU 28 in the HDD 40
When the command 162 is received, the reading of the AV stream data is performed as follows according to the flowchart shown in FIG.

The CPU 28 temporarily saves the value of the variable storing the maximum number of read retries in another area in the RAM area inside the CPU (step S151). Then, while the area on the disk 35 specified by the command 162 is accessed in the next step S153, the value of the variable storing the maximum number of read retries is changed to the retry specified by the Features register 100 of the command 162. The value is changed to the value of the allowable number (step S152), and the reading process is executed (step S153). Upon completion of the reading process, the value of the maximum number of retries temporarily saved in step S151 is restored (step S154).

By performing the above processing, the host 2
By designating the allowable number of retries for each command from 0, the CPU 14 of the host 20 can more finely control the command execution time. Command 1 in FIG.
It is possible to efficiently change the number of times of retry temporarily without using 60.

The CPU 14 of the host 20 uses the AV stream read command 162 defined as above to
When transferring AV stream data to and from the HDD 40, the process proceeds as follows according to the flowchart shown in FIG.

In the same manner as in the first operation example, the CPU 14 of the host 20 considers the current number of channels, the idle time, the cluster size, etc. within a predetermined time (for example, 0.1 in FIG. 6).
At 25 seconds), the number of retries for recording and reproducing data of a predetermined number of channels is determined, and a command 160 is issued (step S161). In step S161,
When the command 160 is issued with the number of retries specified assuming the worst case in which retries occur in all commands, if no retry actually occurs,
The free time increases as the end of the predetermined time approaches. Then, it is determined whether or not the idle time has changed (step S162). If the idle time has changed, the AV stream data read command 16 issued at the end of the predetermined time is determined.
In 2, the number of retries can be temporarily increased to reduce the read error occurrence probability (step S16).
3). When there is no change in the idle time (step S16)
2) The command 162 is issued without changing the number of retries (step S164).

A description will be given of a third operation example in the case where the host 20 indicates the allowable number of re-reads when an error exists in the reproduced data.

In the third example, as in the first and second operation examples, the number of retries is specified using the AV mode setting command 160 and the data 161.
Using 62, the number of retries is temporarily changed for each command. In the third operation example, in addition to these, a retry status sense command 163 shown in FIG. 31 is newly defined. In the command 163, a command identification code (for example, 87
h) is specified in the Command register 106. The command 163 is a status information 1 shown in FIG. 32 indicating how long a delay time caused by retry of data or seek has occurred in the immediately preceding read or write command.
Report as 64. In the status information 164,
As the delay time information due to the retry, for example, the delay due to the seek retry and the delay amount due to the data retry are described in units of seconds or in units of one round of the disk 35.

The HDC 21 and the CPU 28 in the HDD 40 are:
When the command 163 is received, the report of the delay information caused by the retry by the read or write command executed immediately before is advanced as follows according to the flowchart shown in FIG.

The CPU 28 measures the delay time generated during the execution of the command in the read / write command processing (for example, step S163 or S164 in FIG. 30) and stores it in a built-in memory. When receiving the command 163, the CPU 28 sets the delay time to the status information 1
It is notified to the CPU 14 of the host 20 as 64 (step S171). By performing the above processing, the host 2
By issuing the command 163 from 0, the CPU 14 of the host 20 can grasp the delay time information due to the retry that has actually occurred, and can finely control the allowable number of retries in the subsequent commands.

The CPU 14 of the host 20 uses the AV read / write command 163 defined as above to
When the AV stream data is transferred to and from the HDD 40, the process proceeds as follows according to the flowchart shown in FIG.

As in the first and second operation examples, the CPU 14 of the host 20 takes the current number of channels, idle time, cluster size, etc. into account within a predetermined time (for example, 0.125 seconds in FIG. 4). ) Determines the number of retries for recording and reproducing data of a predetermined number of channels, issues a command 160, and sets the maximum number of retries (step S1).
81). Next, the CPU 14 issues a command 162,
The data is read (step S182), and subsequently, a command 163 is issued, and the command 162 is read.
To obtain the delay information generated during the execution of (Step S18)
3). When the status information 164 corresponding to the command 163 is obtained from the HDD 40, the idle time is recalculated based on the delay information (step S184). The recalculated idle time is referred to when the number of retries is determined when the next command 162 is issued.

Next, an operation example in the case where the host 20 instructs execution of a process of replacing a defective data recording area on a recording medium with a non-defective data recording area will be described. Here, the command will be described first, and the operation will be described later.

FIGS. 35 and 36 show the configuration of the newly defined physical address information sense command 170 (command identification code 88h) and the physical address data 171 sent from the HDD 40 as the execution result. . When the command 170 is sent from the CPU 14 to the HDD 40, the Sector Number register 102, the cylinder low
The disk 35 of the sector having the logical block address indicated by the lower 4 bits of the register 103, the cylinder high register 104, and the device / head register 105.
The above physical position information (for example, the track number, head number, sector number, and zone number in FIG. 36) is returned from the CPU 28 to the host 20 using the physical address data 171.

The HDD 21 and the CPU 28 in the HDD 40
When the command 170 is received from the CPU 14 of the host 20, the conversion from the logical block address to the physical address is performed, and the result is notified to the host 20 in the format of the physical address data 171.

By performing the above processing, the HDD 40
Can notify the host 20 of the physical location information of an arbitrary sector.

FIG. 37 shows a newly defined unused spare sector information length command 172 (command identification code 89).
h) shows the configuration. HDC 21 in HDD 40 and
The CPU 28 sends the command 17 from the CPU 14 of the host 20.
When receiving the number 2, the number of sectors to be sent from the HDD 40 is returned to the host 20 in response to the unused replacement sector information command 173 (FIG. 38) described below.

By performing the above-described processing, it becomes possible to notify the host 20 of the length of the used replacement sector information sent to the host 20 by the command 173 in advance.

FIG. 38 shows a newly defined unused replacement sector information command 173 (command identification code 90).
h) shows the configuration. HDC 21 in HDD 40 and
The CPU 28 sends the command 17 from the CPU 14 of the host 20.
3 is received, the unused spare sector area information (the number of sectors is already
To the host 20 in a predetermined format.
Notify. The replacement sector area information includes physical location information.

By performing the above processing, the host 2
0 can be notified of unused replacement sector information.

FIG. 39 shows the structure of a newly defined replacement sector processing command 174 (command identification code 8ah). This command 174 has a parameter 175 shown in FIG. 40. The parameter 175 includes logical block address information of a replacement sector (defective sector) and
Contains the physical block address information of the replacement sector. HDD4
When receiving the command 174 and the parameter 175 from the host 20, the HDC 21 and the CPU 28 in 0 assign the defective sector specified by the parameter 175 to an unused replacement sector also specified by the parameter 175. By performing the above processing, the host 20 can perform the replacement sector processing.

FIG. 41 shows a newly defined defective sector list length command 176 (command identification code 8bh).
Is shown. HDC 21 and CPU in HDD 40
When the command 176 is received from the host 20, the defective sector replaced by the command 174 up to that point, the defective sector automatically detected by the HDD 40, and the corresponding The host 20 is notified of the length of the position information list. By performing the processing described above, it is possible to notify the host 20 in advance of the length of the information that the HDD 40 notifies the host 20 in response to the defective sector list command (FIG. 42) described below. Become.

FIG. 42 shows the configuration of a newly defined defective sector list command 177 (command identification code 8ch). HDC 21 and CPU 2 in HDD 40
8, upon receiving the command 177 from the host 20, notifies the host 20 of the defective sector replaced up to that point and the physical location information list of the corresponding replacement sector in a predetermined format. By performing the processing described above, it becomes possible to notify the host 20 of a list of replacement sectors corresponding to defective sectors.

When the CPU 14 of the host 20 performs the replacement sector process using the commands 170 to 177 defined as described above, the process proceeds as follows according to the flowchart shown in FIG. CPU 14 of host 20
Issues a command 174 and a parameter 175, for example, when the power of the disk recorder is turned on, receives notification of the position of the defective sector and the corresponding replacement sector from the HDD 40, and grasps it (step S191). Also, the CPU 14 of the host 20 issues commands 172 and 173 when the disk recorder is started, for example,
The notification of the unused replacement sector area is received from the HDD 40, and the notification is grasped (step S192). Also, CPU1
4 receives a report of a growth defect (secondary defect) sector from the HDD 40 by patrol seek or the like (step S1).
93). The CPU 14 determines the presence or absence of another defect in the same track and, if there is a defect, the position of the replacement sector from the unused spare sector processing area that has been grasped in advance for the found growth defective sector. In consideration of this, a sector having the least delay when accessing is selected as a replacement sector. Then, the CPU 14 issues a command 174 to make the unused sector a replacement sector for the defective sector (step S194). Further, the CPU 14 updates the defective sector and unused replacement sector information in the built-in memory (step S195).

Next, an example in which the HDD 40 executes the above-described four types of unsteady operations by asking the host 20 for permission to execute the operations will be described.

FIG. 44 is a diagram newly defined for this purpose.
It shows the configuration of the non-stationary operation request sense command 180 (command identification code 8dh). HDC 21 in HDD 40
Also, when receiving the command 180 from the CPU 14, the CPU 28 executes the thermal calibration process, Patr
ol Set a bit in status information corresponding to a process requested to be executed at the time of receiving command 180 (a process determined to be required to be executed by CPU 28) among the unsteady processes of the Seek process and the alternate sector process. Then, the host 20 is notified.

By performing the above processing, the HDD 40
Can notify the CPU 14 of the host 20 of the non-stationary operation request.

The CPU 14 of the host 20 executes the command 180
Is issued to the HDD 40 and the notification of the status information corresponding thereto is received, and among the unsteady operations of the HDD 40, the execution requests from the HDD 40 for the three operations of the thermal calibration, the Patrol Seek, and the replacement sector processing are detected. Can be.

In the above-described example of the non-stationary operation in which all of the operations are executed in accordance with the instructions of the host 20, the start judgment of the execution of the three operations is all determined only by the host 20. In the example in which the execution permission is requested, the request from the HDD 40 (in response to the command 180 from the host 20, the HDD 4
Only when the status information is notified from 0), the CPU 14 checks the idle time to determine the start of the operation. The processing after determining that the operation has started is the same as in the case described above.

In the above, a magnetic disk (hard disk) has been described as an example of a recording medium. However, the present invention can be applied to recording media other than magnetic disks, such as optical disks and magneto-optical disks. .

In this specification, the system is defined as:
It is assumed that the overall device includes a plurality of devices.

In order to provide a user with a computer program for performing the above-described processing, the computer program may be provided by recording it on a recording medium such as a magnetic disk, a CD-ROM, or a solid-state memory, and may be provided on a communication medium such as a network or a satellite. Can be provided by recording on a predetermined recording medium what is transmitted via the.

[0181]

According to the recording medium driving apparatus according to the first aspect, the recording medium driving method according to the seventh aspect, and the providing medium according to the eighth aspect, the non-stationary state that does not involve recording or reproducing of information is provided. Since the operation is executed under the control of the information processing apparatus, it is possible to realize a recording medium driving apparatus that guarantees real-time performance.

An information processing apparatus according to claim 9, claim 1.
According to the information processing method described in Item No. 0 and the providing medium described in Item 11, the non-stationary operation of the recording medium driving device that does not involve recording or reproducing information is controlled.
Real-time performance can be ensured.

According to the information recording / reproducing system of the twelfth aspect, the information recording / reproducing method of the fourteenth aspect, and the providing medium of the fifteenth aspect, recording or reproducing of information by the recording medium driving device is performed. Since the non-stationary operation that is not accompanied is controlled by the information processing device, it is possible to realize a system that ensures real-time performance.

A recording medium driving apparatus according to claim 16, a recording medium driving method according to claim 20, and a recording medium driving method according to claim 21.
According to the provision medium described in the paragraph, when an error occurs in the seek or the recording or reproduction operation, the seek or the recording or reproduction is performed based on the number of re-executions or the maximum executable number managed by the information processing apparatus. Since the above operation is re-executed, it is possible to realize a recording medium driving device in which real-time performance is ensured.

According to the information processing device described in claim 22, the information processing method described in claim 23, and the providing medium described in claim 24, the seek in the recording medium driving device
Or if an error occurs in the recording or playback operation,
Since the number of seeks or the number of re-executions of recording or reproduction or the maximum number of possible executions is controlled, real-time performance can be ensured.

According to the information recording / reproducing system according to claim 25, the information recording / reproducing method according to claim 27, and the providing medium according to claim 28, seek, recording, or reproducing in a recording medium driving device. If an error occurs in the operation, the number of seeks or the number of re-executions of recording or reproduction or the maximum number of executable times is controlled by the information processing device, so that a system ensuring real-time performance can be realized. .

A recording medium driving apparatus according to claim 29, a recording medium driving method according to claim 33, and claim 34.
According to the provision medium described in (1), the process of replacing a defective data recording area on a recording medium with a non-defective data recording area is performed under the control of the information processing apparatus. Can be realized.

According to the information processing apparatus of claim 35, the information processing method of claim 36, and the providing medium of claim 37, data recording having a defect on the recording medium of the recording medium drive device Since the process of replacing the area with a data recording area having no defect is controlled, real-time performance can be ensured.

According to the information recording / reproducing system described in claim 38, the information recording / reproducing method described in claim 40, and the providing medium described in claim 41, the defect on the recording medium of the recording medium driving device can be eliminated. Since the processing for replacing the data recording area with the data recording area having no defect is controlled by the information processing device, it is possible to realize a system ensuring real-time performance.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a digital image disk recorder to which the present invention has been applied.

FIG. 2 is a diagram illustrating a software configuration of a CPU 14 of a host 20 in FIG.

FIG. 3 shows a cluster, which is a data unit for recording / reproduction, and MP
FIG. 9 is a diagram illustrating a GOP relationship in EG2.

FIG. 4 shows an HD for recording one AV data stream.
6 is a timing chart showing the operation of D.

FIG. 5 is a timing chart showing the operation of the HDD when recording / reproducing a plurality of AV data streams simultaneously.

FIG. 6 is a timing chart showing the operation of the HDD when recording / reproducing three AV data streams simultaneously.

FIG. 7 is a diagram showing a format of a thermal calibration command.

FIG. 8 is a flowchart illustrating a thermal calibration command process of the HDD 40 of FIG. 1;

9 is a diagram showing a format in which the CPU 28 of FIG. 1 notifies the CPU 14 of information.

FIG. 10 is a flowchart illustrating a thermal calibration process of the host 20 of FIG. 1;

FIG. 11 is a diagram showing a format of a thermal calibration start command.

FIG. 12 is a flowchart illustrating a thermal calibration start command process of the HDD 40 of FIG. 1;

FIG. 13 is a diagram showing a format of a thermal calibration end command.

FIG. 14 is a flowchart illustrating processing of a thermal calibration end command of the HDD 40 of FIG. 1;

FIG. 15 is a flowchart illustrating a thermal calibration process of the host 20 of FIG. 1;

FIG. 16 is a diagram showing a format of a Patrol Seek command.

FIG. 17 is a flowchart illustrating a Patrol Seek command process of the HDD 40 in FIG. 1;

FIG. 18 is a flowchart illustrating a Patrol Seek process of the host 20 of FIG. 1;

FIG. 19 is a diagram showing a format of a Patrol Seek start command.

20 is a flowchart illustrating processing of a Patrol Seek start command of the HDD 40 in FIG.

FIG. 21 is a diagram illustrating a format of a Patrol Seek end command.

FIG. 22 is a flowchart illustrating processing of a Patrol Seek end command of the HDD 40 of FIG. 1;

23 is a flowchart illustrating a Patrol Seek process of the host 20 in FIG.

FIG. 24 is a diagram showing a format of an AV mode setting command.

FIG. 25 is a diagram showing a format of an AV mode setting parameter.

FIG. 26 is a flowchart illustrating an AV mode setting command process of the HDD 40 of FIG. 1;

FIG. 27 is a flowchart illustrating a retry count designation process of the host 20 of FIG. 1;

FIG. 28 is a diagram showing a format of an AV stream read command.

FIG. 29 is a flowchart illustrating processing of an AV mode setting command of the HDD 40 of FIG. 1;

FIG. 30 is a flowchart illustrating a retry count designation process of the host 20 in FIG. 1;

FIG. 31 is a diagram showing a format of a retry status sense command.

FIG. 32 is a diagram showing a format of status information.

FIG. 33 is a flowchart illustrating an AV mode setting command process of the HDD 40 of FIG. 1;

FIG. 34 is a flowchart illustrating a retry count designation process of the host 20 in FIG. 1;

FIG. 35 is a diagram showing a format of a physical address information sense command.

FIG. 36 is a diagram showing a format of physical address information data.

FIG. 37 is a diagram showing a format of an unused replacement sector information length command.

FIG. 38 is a diagram showing a format of an unused replacement sector information command.

FIG. 39 is a diagram showing a format of a replacement sector processing command.

FIG. 40 is a diagram showing a format of a parameter.

FIG. 41 is a diagram showing a format of a defective sector list length command.

FIG. 42 is a diagram showing a format of a defective sector list command.

FIG. 43 is a flowchart for explaining a defective sector replacement process of the host 20 of FIG. 1;

FIG. 44 is a diagram showing a format of a non-stationary operation request sense command.

[Explanation of symbols]

1-1, 1-2 AV encoder, 6-1, 6-2 AV
Decoder, 14 CPU, 20 host, 21 hard disk controller, 22 buffer memory,
23 recording channel signal processing circuit, 25 head, 27 reproduction channel signal processing circuit, 28 CP
U, 30 Servo DSP, 35 Disk, 40 Hard Disk Drive

Claims (41)

[Claims] 1. An information processing apparatus, connected to an information processing apparatus, for recording continuous image information or acoustic information supplied from the information processing apparatus on a built-in recording medium, and processing the information reproduced from the recording medium for the information processing. In a recording medium driving device that outputs to an apparatus, a recording / reproducing unit that records or reproduces the information on or from the recording medium, and a non-stationary operation that does not involve recording or reproducing the information, A recording medium driving device comprising: an execution unit that executes the recording medium. 2. The recording medium driving device according to claim 1, wherein the execution unit executes the non-stationary operation in response to a command issued by the information processing device. 3. The recording medium driving device according to claim 1, wherein the execution unit executes the unsteady operation by requesting permission from the information processing device. 4. The recording medium drive according to claim 1, wherein the unsteady operation includes a self-diagnosis process for responding to a temperature change. 5. The recording medium driving device according to claim 1, wherein the unsteady operation includes a self-diagnosis process for checking a defect of the recording medium at any time. 6. The recording medium driving device according to claim 1, wherein the recording medium is a removable recording medium. 7. An information processing apparatus connected to an information processing apparatus, which records continuous image information or audio information supplied from the information processing apparatus on a built-in recording medium, and reproduces the information reproduced from the recording medium. A recording / reproducing step of recording / reproducing the information on / from the recording medium; and a non-stationary operation without recording / reproducing the information, the information processing comprising: And an execution step executed under the control of the apparatus. 8. An image processing apparatus, connected to an information processing apparatus, records continuous image information or audio information supplied from the information processing apparatus on a built-in recording medium, and reproduces the information reproduced from the recording medium. A recording / reproducing step of recording / reproducing the information on / from the recording medium in a recording medium driving device that outputs to the device, and performing an unsteady operation without recording or reproducing the information under the control of the information processing device. A providing medium for providing a computer-readable program for causing a computer to execute a process including an execution step to be executed. 9. An information processing apparatus connected to a recording medium driving apparatus for recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving apparatus. An information processing apparatus comprising: a transmitting / receiving unit that transmits and receives the information to be reproduced; and a control unit that controls an unsteady operation of the recording medium driving device that does not involve recording or reproducing the information. 10. An information processing method for an information processing device connected to a recording medium driving device and recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving device. An information processing step of transmitting and receiving the information to be recorded or reproduced with a driving device; and a control step of controlling an unsteady operation of the recording medium driving device without recording or reproducing the information. Method. 11. An information processing device connected to a recording medium driving device for recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving device, wherein the recording medium driving device and the recording device Or a computer readable program for executing a process including a step of transmitting and receiving the information to be reproduced, and a step of controlling an unsteady operation of the recording medium driving device without recording or reproducing the information. A providing medium characterized by being provided. 12. An information processing device, connected to the information processing device, and continuously image information or audio information supplied from the information processing device are recorded on a built-in recording medium and reproduced from the recording medium. An information recording / reproducing system comprising: a recording medium driving device that outputs the information to the information processing device; wherein the recording medium driving device records or reproduces the information on or from the recording medium; Executing means for performing an unsteady operation that does not involve recording or reproduction of the information based on control from the information processing apparatus, wherein the information processing apparatus compresses the information and supplies the information to the recording and reproduction means. Compression means; information decompression means for decompressing the compressed information supplied from the recording / reproduction means; Information recording and reproducing system, characterized in that it comprises a control means for controlling the recording or without play unsteady operation. 13. The information recording / reproducing system according to claim 12, wherein said recording / reproducing means simultaneously records or reproduces the information on a plurality of channels. 14. An information processing apparatus, connected to the information processing apparatus, and continuously image information or audio information supplied from the information processing apparatus are recorded on a built-in recording medium and reproduced from the recording medium. An information recording / reproducing method for an information recording / reproducing system, comprising: a recording medium driving device that outputs the information to the information processing device; wherein the information recording / reproducing method of the recording medium driving device records the information on the recording medium. Or a recording / reproducing step of reproducing, and an execution step of executing a non-stationary operation without recording or reproducing the information based on control from the information processing apparatus. An information compression step of compressing the information and supplying the information to the recording / reproducing step; and the information compressed in the recording / reproducing step. An information recording / reproducing method, comprising: an information decompressing step of decompressing the information; and a control step of controlling an unsteady operation of the recording medium driving device without recording or reproducing the information. 15. An information processing apparatus, connected to the information processing apparatus and recording continuous image information or acoustic information supplied from the information processing apparatus on a built-in recording medium and reproducing the information from the recording medium. An information recording / reproducing system including a recording medium driving device that outputs the information to the information processing device; a recording / reproducing step of recording or reproducing the information on or from the recording medium in the recording medium driving device; Executing an unsteady operation that does not involve recording or reproduction of the information processing device under the control of the information processing device. An information compression step of supplying the information to the storage medium; an information expansion step of expanding the information compressed in the recording and reproduction step; Providing medium characterized by providing a device wherein the information recording or control step and can read a computer to execute processing including a program for controlling the non-steady operation without regeneration of. 16. An information processing apparatus, connected to an information processing apparatus, for recording continuous image information or acoustic information supplied from the information processing apparatus on a built-in recording medium, and for reproducing the information reproduced from the recording medium. In a recording medium driving device for outputting to a device, a recording / reproducing means for recording or reproducing the information on / from the recording medium; and a seek / management unit which is managed by the information processing device when an error occurs in a recording or reproducing operation. The seek, based on the number of re-executions
A recording medium driving device comprising: an execution unit that re-executes a recording or reproducing operation. 17. When an error occurs in the seek or the recording or reproduction operation, the execution means re-executes the seek or the recording or reproduction operation in response to a command issued by the information processing device. 17. The recording medium driving device according to claim 16, wherein the driving is performed. 18. When an error occurs in the seek operation or the recording or reproducing operation, the execution unit performs the seek operation based on the number of times the information processing apparatus has been permitted or the maximum number of executable operations. 17. The recording medium driving device according to claim 16, wherein the recording or reproducing operation is performed again. 19. The recording medium drive according to claim 16, wherein the recording medium is a removable recording medium. 20. A computer which is connected to an information processing device and records continuous image information or audio information supplied from the information processing device on a built-in recording medium, and reproduces the information reproduced from the recording medium. In a recording medium driving method of a recording medium driving device for outputting to a device, a recording / reproducing step of recording or reproducing the information on or from the recording medium; and The seek, based on the number of re-executions or the maximum number of executables managed by the processing device,
Or an execution step of re-executing the recording or reproducing operation. 21. Connected to an information processing device, and records continuous image information or audio information supplied from the information processing device on a built-in recording medium, and records the information reproduced from the recording medium on the information processing device. A recording / reproducing step of recording / reproducing the information on / from the recording medium in a recording medium driving device for outputting to the device; and a seek operation or a management operation performed by the information processing device when an error occurs in the recording / reproducing operation. The seek, based on the number of re-executions
Or a computer-readable program for executing a process including an execution step of re-executing a recording or reproducing operation. 22. An information processing apparatus connected to a recording medium driving apparatus for recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving apparatus. Or a transmitting / receiving means for transmitting and receiving the information to be reproduced, and a seek in the recording medium driving device, or when an error occurs in a recording or reproducing operation, the seek of the recording medium driving device, or re-execution of recording or reproduction. Control means for controlling the number of times of execution or the maximum number of executable times. 23. An information processing method of an information processing apparatus connected to a recording medium driving device and recording or reproducing continuous image information or acoustic information on a recording medium built in the recording medium driving device. A transmitting and receiving step of transmitting and receiving the information to be recorded or reproduced with a driving device; and a seek in the recording medium driving device, or when an error occurs in a recording or reproducing operation, the seek of the recording medium driving device, or a recording or reproducing operation. A control step of controlling the number of re-executions of reproduction or the maximum number of executable times. 24. An information processing device connected to a recording medium driving device for recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving device. Or a step of transmitting and receiving the information to be reproduced, and, when an error occurs in a seek or a recording or reproducing operation in the recording medium driving device, re-executing the seek or recording or reproduction of the recording medium driving device. Providing a computer-readable program for executing a process including a control step of controlling the number of times or the maximum number of executable times. 25. An information processing apparatus and connected to the information processing apparatus, wherein continuous image information or audio information supplied from the information processing apparatus is recorded on a built-in recording medium and reproduced from the recording medium. An information recording / reproducing system comprising: a recording medium driving device that outputs the information to the information processing device; wherein the recording medium driving device records or reproduces the information on or from the recording medium; Or, if an error occurs in the recording or reproduction operation, based on the number of re-executions or the maximum number of executable times managed by the information processing device, the seek,
Or an execution unit for re-executing a recording or reproduction operation, wherein the information processing apparatus compresses the information and supplies the information to the recording / reproduction unit; and a compression unit supplied from the recording / reproduction unit. Information decompression means for decompressing the information being read, and when an error occurs in a seek or recording or reproduction operation in the recording medium driving device, re-executes the seek or recording or reproduction in the recording medium driving device. Control means for controlling the number of times or the maximum number of executable times. 26. The information recording / reproducing system according to claim 25, wherein said recording / reproducing means simultaneously records or reproduces the information on a plurality of channels. 27. An information processing apparatus, and continuous image information or audio information supplied from the information processing apparatus connected to the information processing apparatus are recorded on a built-in recording medium and reproduced from the recording medium. An information recording / reproducing method for an information recording / reproducing system, comprising: a recording medium driving device that outputs the information to the information processing device; wherein the information recording / reproducing method of the recording medium driving device records the information on the recording medium. Or a recording / reproducing step for reproducing, and if an error occurs in a seek or recording or reproducing operation, the seek is performed based on the number of re-executions or the maximum number of executable times managed by the information processing apparatus.
Or an execution step of re-executing a recording or reproduction operation, wherein the information recording / reproducing method of the information processing apparatus comprises: an information compression step of compressing the information and supplying the information to the recording / reproduction step; An information decompression step of decompressing the supplied compressed information; and seeking or recording or reproduction of the recording medium driving device when an error occurs in the seek or recording or reproduction operation of the recording medium driving device. Or a control step of controlling the number of re-executions of reproduction or the maximum number of executable times. 28. An information processing device, connected to the information processing device and recording continuous image information or audio information supplied from the information processing device on a built-in recording medium and reproducing the information from the recording medium. An information recording / reproducing system including a recording medium driving device that outputs the information to the information processing device; a recording / reproducing step of recording or reproducing the information on or from the recording medium in the recording medium driving device; Or, if an error occurs in the recording or reproduction operation, based on the number of re-executions or the maximum number of executable times managed by the information processing device, the seek,
Or causing the information processing apparatus to execute a process including an execution step of re-executing a recording or reproduction operation, compressing the information, and supplying the information to the recording / reproduction step; and supplying the information from the recording / reproduction step. The information expansion step of expanding the compressed information, and seek in the recording medium driving device, or if an error occurs in the recording or reproduction operation, the seek of the recording medium driving device, or recording or A providing medium for providing a computer-readable program for performing a process including a control step of controlling the number of re-executions of reproduction or the maximum number of executable times. 29. Connected to an information processing apparatus and records continuous image information or acoustic information supplied from the information processing apparatus on a built-in recording medium, and reproduces the information reproduced from the recording medium. In a recording medium driving device that outputs to the device, a recording / reproducing unit that records or reproduces the information on or from the recording medium, and a data recording area having a defect on the recording medium,
A recording medium driving device comprising: an execution unit that executes a process of replacing a data recording area with no defect under the control of the information processing apparatus. 30. The recording medium driving device according to claim 29, wherein the execution unit executes the replacement process in response to a command issued by the information processing device. 31. The recording medium driving device according to claim 29, wherein the execution unit executes the replacement process by requesting permission from the information processing device. 32. The recording medium driving device according to claim 29, wherein the recording medium is a removable recording medium. 33. A computer which is connected to an information processing apparatus and records continuous image information or audio information supplied from the information processing apparatus on a built-in recording medium and reproduces the information reproduced from the recording medium. In a recording medium driving method of a recording medium driving device for outputting to a device, a recording / reproducing step of recording or reproducing the information on / from the recording medium, and a data recording area having a defect on the recording medium,
Executing a process of replacing a data recording area with a defect-free data recording area under the control of the information processing apparatus. 34. Connected to an information processing apparatus, and records continuous image information or audio information supplied from the information processing apparatus on a built-in recording medium, and reproduces the information reproduced from the recording medium. A recording medium driving device that outputs to the device, a recording / reproducing step of recording or reproducing the information on or from the recording medium, and a data recording area having a defect on the recording medium,
A providing medium for providing a computer readable program for executing a process including an execution step of executing a process of replacing a data recording area with no defect under the control of the information processing apparatus. 35. An information processing apparatus which is connected to a recording medium driving device and records or reproduces continuous image information or acoustic information on or from a recording medium built in the recording medium driving device. Or a transfer unit for transferring the information to be reproduced, and a control unit for controlling a process of replacing a defective data recording area on the recording medium of the recording medium driving device with a defect-free data recording area. An information processing apparatus characterized by the above-mentioned. 36. An information processing method for an information processing apparatus connected to a recording medium driving device and recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving device. A transmitting / receiving step of transmitting / receiving the information to be recorded or reproduced to / from a driving device; and a control for controlling a process of replacing a defective data recording region on the recording medium of the recording medium driving device with a defect-free data recording region. And an information processing method. 37. An information processing apparatus connected to a recording medium driving device for recording or reproducing continuous image information or acoustic information on or from a recording medium built in the recording medium driving device, And a control step of controlling a process of replacing a defective data recording area on the recording medium of the recording medium driving device with a non-defective data recording area. A providing medium for providing a computer readable program for executing a process. 38. An information processing apparatus and connected to the information processing apparatus, wherein continuous image information or audio information supplied from the information processing apparatus is recorded on a built-in recording medium and reproduced from the recording medium. An information recording / reproducing system including a recording medium driving device that outputs the information to the information processing device, wherein the recording medium driving device records or reproduces the information on or from the recording medium; A defective data recording area on the medium
Executing means for executing a process of replacing the data recording area with a defect-free data recording area under the control of the information processing apparatus; wherein the information processing apparatus compresses the information and supplies the information to the recording / reproducing means. Information decompression means for decompressing the compressed information supplied from the recording / reproduction means; and a defect-free data recording area on the recording medium of the recording medium driving device. An information recording / reproducing system, comprising: control means for controlling a process of replacing the information. 39. The information recording / reproducing system according to claim 38, wherein said recording / reproducing means simultaneously records or reproduces the information on a plurality of channels. 40. An information processing device, connected to the information processing device and recording continuous image information or audio information supplied from the information processing device on a built-in recording medium and reproducing the information from the recording medium. An information recording / reproducing method for an information recording / reproducing system, comprising: a recording medium driving device that outputs the information to the information processing device; wherein the information recording / reproducing method of the recording medium driving device records the information on the recording medium. Or a recording / reproducing step for reproducing, and a data recording area having a defect on the recording medium,
An execution step of executing a process of replacing the data recording area with a defect-free data recording area under the control of the information processing apparatus. The information recording / reproducing method of the information processing apparatus includes: An information compression step of supplying; an information expansion step of expanding the compressed information supplied from the recording / reproducing step; and a data recording area having a defect on the recording medium of the recording medium driving device. A control step of controlling a process of replacing the data recording area with a data recording area having no data. 41. An information processing device, connected to the information processing device, and recording continuous image information or audio information supplied from the information processing device on a built-in recording medium and reproducing the information from the recording medium. An information recording / reproducing system comprising: a recording medium driving device that outputs the information to the information processing device; a recording / reproducing step of recording or reproducing the information on or from the recording medium in the recording medium driving device; A defective data recording area on the medium
Causing the information processing apparatus to execute processing for replacing the data recording area with a defect-free data recording area under the control of the information processing apparatus, compressing the information, and supplying the information to the recording / reproducing step. Information compressing step, an information expanding step of expanding the compressed information supplied from the recording / reproducing step, and a data recording area having a defect on the recording medium of the recording medium driving device. Providing a computer-readable program for executing a process including a control step of controlling a process of replacing a data recording area with another data recording area.