JPH07111035A - Device for recording/reproducing information - Google Patents

Abstract

PURPOSE:To improve the processing of the specific data while securing the reliability of the data in a control area by controlling information recording/ reproducing operation according to a command from a host controller and selecting an optional mode among plural operation modes whose operation procedure are stored. CONSTITUTION:A device control part 6 constituting an optical disk recording/ reproducing device is provided with a CPU 21 for executing a program stored in a ROM 23 and a RAM 22 for operating the CPU 21, and these are used as a data buffer performing the error correction of the data/the generation of error correction information. Further, a disk motor 3, a recording/reproducing optical head control part 4 and an operation mode switch 9 are connected to a control signal input/output part 24 beforehand, and the switch 9 is decided according to the control program stored in the ROM 23 by the CPU 21, and the read is executed by the CPU 21. After the operation, starting operation is continued as usual, and when the command is issued from the host device 8, either of recording, recording confirmation and a reproduction command is executed through an interface part 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus, and more particularly to an information recording / reproducing apparatus for recording / reproducing information on / from a disc-shaped recording medium or a card-shaped recording medium, while using this as a data storage means. Specific information processing performed by
For example, an operation mode and an operation thereof for the operation system (hereinafter, referred to as an OS), which is a basic program for controlling the image information processing program and the host controller, to match the operation requested to the information recording / reproducing apparatus. It is related to mode setting.

[0002]

2. Description of the Related Art In recent years, optical discs have a high recording density, a long life of the medium because they can be recorded and reproduced in a non-contact manner, and random access is much faster than a medium such as a tape. CD (Compact Disk) that digitally records the sound as, a VLP that records the video and sound of a movie, an image file as a recording and reproducing device,
Many proposals such as data files and document files have been made. In particular, a data file device using an optical disc (hereinafter referred to as an optical disc recording / reproducing device) is a UNI
X, MS-DOS, etc. as a large-capacity information portable medium based on a large number of OSs by a specific computer maker or a control program called a device driver that provides the OS with a connection function with an optical disk recording / reproducing apparatus, It is used as an alternative to a fixed magnetic disk called a hard disk.

In such an application, the relationship between the OS or device driver for controlling the host controller and the conventional information recording / reproducing apparatus will be described with reference to the drawings. FIG. 3 is a conceptual diagram showing a usage pattern of an optical disc which is an information recording medium. Actually, a track is provided in a concentric circle shape or a spiral shape, and an area is physically separated by information such as an address indicating a track position and a sector. Further, although the area is logically divided by the address and the sector, the area division is shown in an address map form as shown in the figure for easy understanding. As shown in FIG. 6, file management information including both a file name used for recording / reproducing data management at the time of recording / reproducing data and recording position information indicating in which block on the optical disk the data is recorded Area (hereinafter referred to as the management area) and a data recording area indicated by the data recording position indicated in the file management information (hereinafter referred to as the data area)
The area of the optical disc is divided into at least two areas.
The former is an optical disk area used exclusively by the OS or device driver for recognizing the recording / reproducing data as a file, and the latter specializes in specific processing that operates under the control of the OS in the host controller. This is an optical disc area for recording / reproducing processing data handled by an application, which is a program for doing so.

Usually, the OS or the device driver for controlling the host controller issues a recording / confirmation command instead of a simple recording in the recording-related command for the optical disk in order to give the highest priority to the reliability of the recording / reproducing data. Or, even if a recording command is issued inside the optical disk recording / reproducing apparatus, the internal operation is often a recording / confirming operation.
This is a measure in consideration of the fact that dust and dirt are easily attached to the recording medium of an optical disc unlike a fixed magnetic disc, and the reliability of recording and reproduction is not constant. After that, the recorded block is reproduced again, the data before recording is compared with the reproduced data reproduced from the optical disc, and the coincidence of data before and after recording is confirmed. Further, for the same reason, it is general to use a command (hereinafter referred to as a replacement command) accompanied by an error recovery processing operation and a replacement processing operation for each of the recording, recording / confirmation, and reproduction commands. The error recovery operation is to immediately confirm the reproduction of the recorded information and, when an error occurs, perform an inverse operation when the redundant code is added from the redundant code added to the recorded information itself, remove the error, and remove the recorded information. It is a function to determine whether or not it can be restored. Further, the replacement processing operation means that when it is determined that the restoration is impossible in the error recovery operation, or when the information such as the address and the sector cannot be normally read and the area is determined to be unusable.
This is a function to re-record and confirm only the above-mentioned non-recoverable part in a specific location other than the current information recording location in the data recording area. During playback, the normal information recording area was played or replaced. Reproduce the parts continuously, and combine them again to ensure that the original recorded information is recorded and reproduced.
Although it takes time, the operation that emphasizes the reliability of recorded information is performed.

An example of a conventional optical disk recording / reproducing apparatus will be described below with reference to the drawings.

FIG. 7 shows an example of a block diagram of a conventional optical disk recording / reproducing apparatus. In FIG. 7, reference numeral 71 is an optical disk, 72 is a recording / reproducing optical head, 73 is a disk motor, 74 is a recording / reproducing optical head controller, 75 is a signal processor, 76 is a device controller, and 77 is information exchange with a host controller. An interface unit 78 for performing the above is a high-order control device, and the standard that defines the connection relationship (hereinafter referred to as an interface) such as the arrangement of signal lines and the signal form between the interface unit 77 and the high-order control device 78 is SCSI. −
2 (ANSI X3.131-199X standard) is shown as an example.

The operation of the optical disk recording / reproducing apparatus configured as described above will be described below. The optical disk recording / reproducing apparatus uses the SC interface 77 in FIG.
The command and data from the host controller transferred through the SI interface are received, and the command is interpreted by the device controller 76. In each of the commands “record”, “record / confirm”, and “play”, the “operation code” indicating each operation, the “logical block address” indicating the start position of the area to be operated on the optical disk, and the optical disk It has information about the "transfer length" indicating the number of consecutive logical blocks to be operated above. For example, a combination of commands such as “command = record, logical block address = 3000, transfer length = 20” is transferred to the recording / reproducing apparatus via the interface section 77, and decoded by the apparatus control section 76. Then, the optical disk recording / reproducing apparatus, based on the interpreted command from the higher-order controller, converts the data for the number of logical blocks indicated by the "transfer length" from the position indicated by the "logical block address" on the optical disk into the "operation code". It is executed as the operation indicated by and the execution result is reported to the host controller. In this case, the recording information is received by the interface 77, the device control unit 76 and the signal processing unit 75 through communication, and the signal processing unit 75 performs arithmetic processing to add a redundant code for recovery in the event of an error, and the memory Store on top. The recording / reproducing optical head 72 accesses the designated address 3000, and enters the recording standby state. At the time when the above two operations are completed, the optical head 72 starts recording information and records all information. By the way, the execution result is reported to the host controller, and the next operation command is awaited.

FIG. 8 is an operation explanatory view for explaining the operation when the command from the host controller of the conventional optical disk recording / reproducing apparatus is for recording, recording / confirming and reproducing. Instructions from the upper-level control device are explained in each case, "whether the error recovery processing operation and the replacement processing operation are involved", "whether an error occurs during the execution of the operation or there is a defective block to be replaced". I decided to. At this time, if the command from the host controller in step 81 of FIG. 8 is any one of recording, recording / confirmation, and reproduction commands accompanied by the error recovery processing operation and the replacement processing operation, recording, recording / recording / recording in step 84 is performed. Start execution of either confirmation or reproduction command processing. Step 8
In step 5, the occurrence of an error during execution of the operation and the presence or absence of a defective block to be replaced are checked. If there is no error or a bad block, the command processing ends normally. If there is an error or a bad block, step 8
The error recovery process and the replacement process of 6 are performed. If the result is confirmed in step 87 and the error is recovered, or if the replacement process is correctly performed, the process ends normally. Conversely, if it is determined that the error recovery process or the replacement process fails in step 87, the process ends abnormally. The execution result is reported to the host controller.

At step 81, if the command from the host controller is one of recording, recording / confirmation and reproduction without error recovery processing operation and replacement processing operation, at step 82 recording, recording / confirmation, Execution of any command processing of reproduction is started. In step 83, the occurrence of an error during the execution of the operation and the presence or absence of a defective block to be replaced are inspected. If there is no occurrence of the error or the defective block, the process normally ends, and an error occurs during the execution of the operation.
Even if there is a defective block to be replaced, error recovery processing and replacement processing are not performed, so the processing ends normally, but the reliability of the recorded and reproduced data is not guaranteed. In either case, normal termination is reported to the host controller.

[0010]

However, in the above-mentioned configuration of the conventional optical disk recording / reproducing apparatus, the optical disk recording / reproducing apparatus operates only in accordance with the recording / reproducing command from the host controller, so that which area on the optical disk is However, the recording / reproducing operation was executed according to the recording / reproducing command from the host controller.

On the other hand, among the applications operating in the host controller, it takes time to record and reproduce the processed data in the optical disk device, and if a delay occurs, the application itself cannot operate normally. In some cases, the reliability of itself is not very important. In other words, it is important that no delay occurs in the recording / reproducing process of data, and if the recording / reproducing data can be handled as a file by the OS, the reliability of the data itself does not have to be so high. . That is, the data in the management area requires reliability of the recording / reproducing process, and the data in the data area requires no delay in the recording / reproducing process. As such applications, for example, an image information processing system is known. In such an application for a specific purpose, the host controller itself divides the recording / reproducing command into a management area and a data area, "whether an error recovery processing operation and a replacement processing operation are performed", and when recording, "record, Issuing by switching "Whether recording / confirmation is used" enables the conventional optical disk recording / reproducing apparatus that operates according to the recording / reproducing command from the host controller to record / reproduce the processed data according to the application. In reality, there is no host controller that does this because the burden on the host controller becomes very heavy.

Therefore, when the conventional optical disk recording / reproducing apparatus is used as the recording / reproducing apparatus for the application for the specific purpose as described above, the reliability of the recording / reproducing process of the data in the management area and the data in the data area There is a problem in that it is impossible to realize both of the delay in the recording / reproducing process.

The present invention solves the above-mentioned conventional problems. In the management area on the optical disk, each operation of recording / confirmation and reproduction command accompanied by error recovery processing operation and replacement processing operation is executed, and data on the optical disk is executed. It is an object of the present invention to provide an information recording / reproducing apparatus having an operation mode in which each operation of a recording / reproducing command without an error recovery processing operation and a replacement processing operation is executed in a region.

[0014]

In order to achieve this object, an information recording / reproducing apparatus of the present invention is connected to a host control apparatus and is used in an information recording / reproducing apparatus for recording / reproducing information on / from an information recording medium. A plurality of operation modes that store an operation procedure for controlling the information recording / reproducing operation according to a command from the device, a selection unit that selects one operation mode from the plurality of operation modes, and a command from the host controller The operation of the information recording / reproducing apparatus is controlled by the operation mode selected by the selecting means, and a part of the information recording / reproducing operation in the operation mode is performed according to the position of the information recording medium area or the attribute. It has a configuration that changes everything. In addition to the above configuration,
An arbitrary device having a first device switch and a state reading unit for the first device switch, wherein the selecting unit operates according to the state of the first device switch and is selected from the plurality of operation modes. As one of the operation modes, the operation mode in which the information recording / reproducing operation is switched according to the position or attribute of the information recording medium area accessible by the host controller even if the command from the host controller is the same. And a second device switch and a state reading means for the second device switch.

[0015]

With this configuration, the state of the first device switch is read, and the operation mode selection means operates according to the state or a specific command from the host controller, and the information is recorded according to the command from the host controller. An arbitrary operation mode is selected from among a plurality of operation modes in which operation procedures for controlling the reproduction operation are stored. Then, the operation of the information recording / reproducing apparatus is controlled by the selected operation mode in accordance with a command from the host controller, and a part of the information recording / reproducing operation in the operation mode is performed according to the position or the attribute of the information recording medium area. Or change everything. As one of the operation modes, whether the command from the host controller is a recording or recording / confirmation command accompanied by the error recovery processing operation and the replacement processing operation, or the error recovery processing operation and the replacement processing operation are involved. Even if there is no recording or recording / confirmation command, the recording / confirmation command operation accompanied by the error recovery processing operation and the replacement processing operation is executed in the specific information recording medium area, and the area other than the specific information recording medium area is executed. In the information recording medium area, the operation of the recording command without the error recovery processing operation and the replacement processing operation is executed. Even if the command from the host controller is a reproduction command accompanied by an error recovery processing operation and a replacement processing operation, or a reproduction command not accompanied by an error recovery processing operation and a replacement processing operation, a specific information recording medium area Executes the operation of the reproduction command accompanied by the error recovery processing operation and the replacement processing operation, and executes the operation of the reproduction command not accompanied by the error recovery processing operation and the replacement processing operation in the information recording medium area other than the specific information recording medium area. To do. Thus, in the management area on the information recording medium, recording / confirmation with error recovery processing operation and replacement processing operation,
It is possible to execute each operation of the reproduction command, and to execute each operation of the recording and reproduction commands without error recovery processing operation and replacement processing operation in the data area on the information recording medium, depending on the nature of the information to be recorded and reproduced. It is possible to quickly determine and execute the above operation without receiving an instruction from the host controller.

Further, with the same configuration, it is possible to set a specific information recording medium area by a command from the host controller.

Furthermore, a second device switch is added to the above configuration, and a plurality of specific information recording medium areas can be set depending on the state of the second device switch.

Further, in a device having no host control device, for example, a video recording device or a device for both video recording and data recording, the operation is determined by key input by an operator instead of a command from an external device. Since there is a mode, by operating the above operation in conjunction with key input,
Similar functions can be realized.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an optical disk recording / reproducing apparatus according to the first embodiment of the present invention. FIG. 1 shows an example of a general configuration of an optical disc recording / reproducing apparatus which is an information recording / reproducing apparatus. In FIG. 1, reference numeral 1 is an optical disk which is a medium on which data can be recorded and reproduced, 2 is a recording / reproducing optical head which only performs recording and reproduction or reproduction with information on the optical disk as a signal, 3 is a disk motor for rotating the optical disk, and 4 is A recording / reproducing optical head controller 5 for performing any one or any combination or all of focus control, tracking control, and tilt control of the recording / reproducing optical head modulates data to be recorded on the optical disc into a recording signal, or A signal processing unit that demodulates a signal reproduced from an optical disc into reproduction data, 6 is a device control unit that performs system control of the entire optical disc recording / reproducing device, and 7 is an interface unit that provides an interface for connecting to a host control device. As SCSI
An interface, 8 is a higher-level control device also having a SCSI interface, 9 is an operation mode switch for selecting an operation mode, and the operation mode switch 9 is a rotary switch, a jumper switch or a DIP switch composed of jumper wires, or a device. It is also possible to use a method such as an eject switch for ejecting a disc that originally exists in a certain mode in a specific mode to perform software processing.

The operation of the optical disk recording / reproducing apparatus configured as described above will be described with reference to FIGS. 1, 2 and 3.

FIG. 2 illustrates the internal structure of the device control section 6 in this embodiment. 21 is a CPU that executes the programs stored in the ROM 23, and 22 is a CP
A RAM, which is a memory used by U for its operation, is also used as a data buffer for performing error correction of data / generation of error correction information, and the like. 24 is a disk motor 3, a recording / reproducing optical head control unit 4, and an operation. A control signal input / output unit to which the mode switch 9 is connected. FIG. 3 is an optical disk area layout diagram for explaining the layout of the management area and the data area when the OS of the host controller in this embodiment uses MS-DOS and uses an optical disk as a partition in one volume.

The CPU 21 in FIG. 2 reads the setting of the operation mode switch 9 by the control signal input / output unit 24 in the RAM 22 in accordance with the optical disc recording / reproducing apparatus control program stored in the ROM 23, when the apparatus is powered on. Remember. The operation mode switch 9 is valid (ON state)
If so, the value m + 1 of the logical block address in FIG. 3 is set as the head value of the data area. This is because, as can be seen from FIG. 3, the management area is arranged in an area smaller than this value, and the data area is arranged in an area larger than this value. Actually, this value is stored in the ROM 23 in advance, and the CPU 21 reads and executes the value. Further, by having a plurality of values stored in advance in the ROM 23, it is possible to deal with the case where there are two or more volumes of the optical disk in the same manner.

After this operation, the normal optical disk recording / reproducing apparatus startup processing operation is continued. And the host controller 8
Interface command 7
Command is either a record, record / confirm, or play command, and the command's "logical block address"
If is a management area on the optical disk, each operation of recording / confirmation and reproduction command accompanied by error recovery processing operation and replacement processing operation is executed. Also, commands are recorded, recorded / confirmed,
If any of the playback commands and the "logical block address" of the command is a data area on the optical disc, recording without error recovery processing operation and replacement processing operation,
Executes each operation of the playback command. As described above, in the management area, a recording / confirmation and reproduction command with error recovery processing operation and replacement processing operation, which is a processing method capable of maximizing the reliability of recorded information, is executed, and in the data area, a recording / reproduction response is executed. Even if the command includes an error recovery process operation and a replacement process, if the operation mode switch 9 is "ON", the command of the host control device is ignored to improve the reliability of the data. By performing the fastest operation even at a slight cost, it is possible to provide a device that can be used even in a field where the limitation due to the processing speed in the past could not be used.

FIG. 4 shows recording, recording / confirmation of a command from the host controller of the optical disk recording / reproducing apparatus in this embodiment.
FIG. 8 is an operation explanatory diagram with a flowchart for explaining an operation in the case of reproduction. Here, the operation mode switch 9 shown in FIG.
Is in the "ON" state, and the command from the host controller "whether to record or replay the management area" or "whether an error occurs during execution of the operation or there is a defective block to be replaced". Will be explained separately for each case. At this time,
In step 41 of FIG. 4, if the command from the host controller is one of recording, recording / confirmation and reproduction targeting the management area, in step 44 either recording / confirmation or reproduction command processing is performed. Start executing. In step 45, the occurrence of an error during execution of the operation and the presence or absence of a defective block to be replaced are inspected. If there is no error or a bad block, the command processing ends normally. If an error occurs or a defective block exists, the error recovery process or replacement process of step 46 is performed. The result is step 47.
If the error is recovered and the replacement process is performed correctly, the process ends normally, and if it is determined that the error recovery process or the replacement process fails in step 47, the process ends abnormally.
In either case, the execution result is reported to the host controller.

At step 41, if the command from the host controller is one of recording, recording / confirmation, and reproduction of the data area that does not cover the management area, then at step 42 either recording or reproduction is commanded. Start executing the process. In step 43, the occurrence of an error during execution of the operation and the presence / absence of a defective block to be replaced are inspected. If there is no error or a defective block, the process normally ends. Even if an error occurs during execution of the operation or if there is a defective block to be replaced, error recovery processing or replacement processing is not performed, so the processing ends normally, but the reliability of the recorded and reproduced data is not guaranteed. In either case, normal termination is reported to the host controller.

In the above example, the function for confirming the error occurrence during the recording process is inserted in 43 for the time being, but this function may be omitted because it ends without actually performing the process. A function of only informing the operator of the error occurrence may be used.

An optical disk recording / reproducing apparatus according to the second embodiment of the present invention will be described below. The second embodiment has the same configuration as the first embodiment of the present invention shown in FIG. 1 and performs the same operation, but the device control section 6 has an interface section 7
In the case where the command from the host controller 8 which is interpreted via the command is a specific command for area setting, the value of the management area and the value of the data area are changed to read values from the ROM 23 based on the command and individually. Or simultaneously, it can be set to the value transferred from the host controller.

An optical disk recording / reproducing apparatus according to a third embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 is a block diagram of an optical disk recording / reproducing apparatus according to the third embodiment of the present invention. FIG. 5 shows an example of a general configuration of an optical disc recording / reproducing apparatus which is an information recording / reproducing apparatus. In FIG. 5, reference numeral 51 is an optical disk which is a medium capable of recording and reproducing data, 52 is an optical head which records and reproduces information on the optical disk as a signal, 53 is a disk motor which rotates the optical disk,
Reference numeral 54 denotes a recording / reproducing optical head controller for performing any one or arbitrary combination or all of focus control, tracking control, and tilt control of the recording / reproducing optical head, and 55 modulates data to be recorded on the optical disc into a recording signal, Alternatively, a signal processing unit that demodulates a signal reproduced from the optical disc into reproduction data, 56 is a device control unit that performs system control of the entire information recording / reproducing device, and 57 is an interface unit that provides an interface for connecting to a host control device. As an example, a SCSI interface is provided, 58 is a host controller similarly provided with a SCSI interface, 59 is an operation mode switch for selecting an operation mode, and operation mode switch 59 is a rotary switch, a jumper switch or a dip switch composed of jumper wires. Ji, may be other switching functions, such as processing software manner. Reference numeral 60 denotes a device switch for switching and setting the set values of the management area and the data area. In this embodiment, the values of the management area and the data area are set according to the type of the OS that controls the host controller. It is called a corresponding OS selection switch that switches values. This is because the amount of data required in the management area of the optical disc differs depending on the type of OS that controls the host controller
It corresponds to the change of the position on the optical disk. In this embodiment, 60-1 MS-DOS,
UNIX 60-2, Macintosh 60-3
Corresponds to the OS. The corresponding OS selection switch 60 may be a rotary switch, a jumper switch or a DIP switch configured by jumper wires, or other switching functions such as software processing.

The operation of the optical disk recording / reproducing apparatus configured as described above will be described with reference to FIGS. 5 and 6.

FIG. 6 illustrates the internal structure of the device controller 56 in this embodiment. 61 is a CPU for executing the programs stored in the ROM 63, and 62 is a C
A RAM, which is a memory used by the PU for its operation, is also used as a data buffer for performing error correction of data / generation of error correction information, and the like. Reference numeral 64 denotes a disk motor 53, a recording / reproducing optical head controller 54, and an operation. A control signal input / output unit to which the mode switch 59 is connected.

The CPU 61 uses the optical disc recording / reproducing apparatus control program stored in the ROM 63 to set the operation mode switch 59 and the corresponding OS selection switch 6
The setting of 0 is read by the control signal input / output unit 64 when the power of the apparatus is turned on, and the operation mode switch 59 is enabled (O
In the N state), the value of the management area and the value of the data area are set in the ROM 63 based on the setting of the corresponding OS selection switch 60.
Read from and set. Further, the read result is stored in the RAM 62. After this operation, the normal startup processing operation of the optical disk recording / reproducing apparatus is continued. Then, it waits for a command from the host controller 58, and if there is a command, interprets it via the interface unit 57, and the command is either a recording, recording / confirmation, or reproduction command, and the "logical block address" of the command. If is a management area on the optical disk, each operation of recording / confirmation and reproduction command accompanied by error recovery processing operation and replacement processing operation is executed. Also, the command is recorded,
If either the recording / confirmation or reproduction command and the "logical block address" of the command is the data area on the optical disc, the recording and reproduction commands without error recovery processing operation and replacement processing operation are executed. Run.

In all of the above explanations, the operation mode switch 9 or 59 is recognized to record, record / confirm, reproduce,
From multiple operation modes such as playback / alternation, operation mode switch and recording / playback area position or attributes "management area", "data area" according to command operation in management area, error recovery operation in data area, replacement Although it was explained that the operation without processing is performed, a large amount of data is continuously received at a relatively fast speed from a specialized device such as audio or video signal recording device, artificial satellite or underground exploration device. In the device used only for recording, the operation mode switch is not particularly necessary, and the operation of the present invention may be always performed. Even in this case, allowing the setting to be changed by the host controller is effective in expanding the range of use and application. Furthermore, in the management area,
Although it has been explained that the operation mode is determined by the command of the host controller, it is not possible to configure the error recovery processing operation and the replacement processing to be always executed regardless of the state of the operation mode switch and the command of the host controller. This is an effective means for always ensuring the reliability of.

Further, in the present video recording equipment for home use such as a video tape recorder, the use is more specialized, and in most cases, the above-mentioned upper controller is not connected, and in the future. In the above-mentioned device by digital recording, reliability-oriented recording including error recovery processing and replacement processing is performed in the management area for recording the position and attribute of the recorded information, and recording speed and response emphasis in the actual data area of the video and the like. It may be configured such that the recording mode and the reproduction mode in which the replacement processing of No. 1 is not performed are performed. However, even in specialized equipment such as this example, it is important to perform recording that places importance on reliability in the data area, as it is important to expand the range of application, so as in other examples. It is useful to realize the operation mode switching function with a switch or the like.

Further, in the above example, the method of deciding the occurrence of an error at the time of recording the data area to the characteristics of the medium or the device is used. However, the recording area is designated in advance, the error occurrence rate is confirmed, and the error occurrence probability is determined. High sectors or tracks can be recorded at a management area so that they are not used, or special marks are recorded on sectors or tracks with a high error occurrence rate. It is also possible to achieve both the recording operation and the reliability of the recording signal to some extent.

In the embodiment of the present invention, the information recording / reproducing apparatus using the optical disk has been described, but the present invention is not limited to this, and a disk-shaped magnetic recording medium having a similar shape,
It is obvious that the invention can be applied to a device having a similar function using another type of information recording medium such as a card or a tape.

Further, when recording the data area in which the recorded data is not confirmed at the time of recording, error correction (ECC) is performed.
It is also possible to enhance and record the data to improve the reliability of the data.

Alternatively, the area to be used in the application is previously instructed to the information recording / reproducing apparatus from the host controller, the defective sector of the area to be used is detected prior to the use in the application, and the area is not recorded. It is also possible to control.

[0040]

As described above, according to the present invention, in the information recording / reproducing apparatus which is connected to the host controller and records / reproduces information on / from the information recording medium, the operation mode switch is recognized,
Depending on the position of the operation mode switch and the recording / reproducing area or the attributes “management area” and “data area” among multiple operation modes such as recording, recording / confirmation, reproduction, and reproduction / alternation, the management area operates according to the command. Configured to perform recording and playback operations that emphasize data reliability, error recovery operations in the data area, and recording and playback operations that emphasize speed-up of processing without replacement processing, or operation modes for specialized equipment. By configuring so as to realize the above functions by omitting switches, the reliability of the recording / playback data required by the OS controlling the host controller or the device driver is ensured, and the application running on the host controller requires A plurality of data recording / reproducing processes that have no delay in data processing and that have excellent recording / reproducing characteristics during actual use. Those that can realize an information recording and reproducing apparatus having a recording / reproducing operation mode.

The information recording / reproducing apparatus provided by the present invention can prevent a delay from occurring during data recording / reproducing in an application such as an image processing system which requires a very large amount of data processing and requires a high processing speed. Since the reliability of the file information managed by is secured, it is possible to exert a very large effect in expanding the range of use of the optical disk recording / reproducing apparatus.

[Brief description of drawings]

FIG. 1 is a block diagram of an optical disk recording / reproducing apparatus according to first and second embodiments of the present invention.

FIG. 2 is a detailed view of a device control unit according to the first and second embodiments of the present invention.

[Fig. 3] Area map of optical disk

FIG. 4 is an operation explanatory diagram when a command from the host controller in the first and second embodiments of the present invention is recording, recording / confirming, and reproducing.

FIG. 5 is a block diagram of an optical disk recording / reproducing apparatus according to a third embodiment of the present invention.

FIG. 6 is a detailed diagram of an apparatus control unit according to a third embodiment of the present invention.

FIG. 7 is a block diagram of a conventional optical disc recording / reproducing apparatus.

FIG. 8 is an operation explanatory diagram when a command from a host controller in the conventional optical disc recording / reproducing apparatus is for recording, recording / confirming, and reproducing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 optical disk 2 recording / reproducing optical head 3 disk motor 4 recording / reproducing optical head controller 5 signal processor 6 device controller 7 interface 8 host controller 9 operation mode switch 21 CPU 22 RAM 23 ROM 24 control signal input / output unit 51 optical disk 52 recording / reproducing optical head 53 disk motor 54 recording / reproducing optical head control unit 55 signal processing unit 56 device control unit 57 interface unit 58 upper control device 59 operation mode switch 60 OS selection switch 60-1 MS-DOS switch 60-2 UNIX switch 60-3 Macintosh OS switch 61 CPU 62 RAM 63 ROM 64 Control signal input / output unit 71 Optical disc 72 Recording / reproducing optical head 73 Disc motor 74 Recording / reproducing optical head control unit 75 Signal processing unit 7 Device control unit 77 interface unit 78 the upper level control unit

Claims (10)

[Claims] 1. An information recording / reproducing apparatus which is connected to a host controller and records / reproduces information on / from an information recording medium, wherein a first device switch, a state reading means of the first device switch, and a host controller. The plurality of operation modes storing the operation procedure for controlling the information recording / reproducing operation in accordance with the command, and selecting means for selecting one operation mode from the plurality of operation modes. Depending on the state, the selection means operates, and as one of the arbitrary operation modes selected from the plurality of operation modes, the host controller can access even if the command from the host controller is the same. An information recording / reproducing apparatus having an operation mode for switching and accessing the information recording / reproducing operation according to the position or attribute of the information recording medium area. 2. An information recording / reproducing apparatus, which is connected to a host controller and records / reproduces information on / from an information recording medium, stores a plurality of operation procedures for controlling information recording / reproducing operation according to a command from the host controller. It has an operation mode and a selection means for selecting one operation mode from the plurality of operation modes, and operates the selection means in response to a command from the host controller to control the operation of the information recording / reproducing apparatus and to An information recording / reproducing apparatus characterized in that an information recording / reproducing operation is switched according to a position or an attribute of a recording medium area. 3. An information recording / reproducing apparatus, which is connected to a host controller and records / reproduces information on / from an information recording medium, stores an operation procedure for controlling an information recording / reproducing operation according to a command from the host controller. And controlling the operation of the information recording / reproducing apparatus according to the operation mode in accordance with a command from the host controller, and performing a part of the information recording / reproducing operation according to the operation mode according to the position of the information recording medium area or the attribute. An information recording / reproducing apparatus characterized by being changed. 4. As one of arbitrary operation modes selected from the plurality of operation modes, regardless of whether or not an error recovery processing operation and a replacement processing operation are performed in a recording command from a host controller. , A recording command operation with an error recovery processing operation and a replacement processing operation in the first information recording medium area, and a recording command operation without an error recovery processing operation and a replacement processing operation in the second information recording medium area 4. The information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus has an operation mode for executing. 5. As one of the arbitrary operation modes selected from the plurality of operation modes, regardless of whether or not an error recovery processing operation and a replacement processing operation are performed in a reproduction command from a host controller. , A reproduction command having an error recovery processing operation and a replacement processing operation in the first information recording medium area, and a reproduction command having no error recovery processing operation and a replacement processing operation in the second information recording medium area The information recording / reproducing apparatus according to any one of claims 1 to 4, wherein the information recording / reproducing apparatus has an operation mode for performing the operation of. 6. The information recording / reproducing apparatus according to claim 1, wherein the first information recording medium area can be set by a command from a host controller. 7. In addition to the above configuration, a second device switch,
A second device switch status reading means, and a first operation mode of the second operation mode depending on a state of the second device switch.
The information recording / reproducing apparatus according to any one of claims 1 to 5, wherein the information recording medium area can be set. 8. The information recording / reproducing apparatus according to claim 1, wherein the selecting means for selecting the operation mode can be set by a command from a host controller. 9. An information recording / reproducing apparatus for recording / reproducing information on / from an information recording medium, having an operation mode storing an operation procedure for controlling an information recording / reproducing operation according to a key command from an operator, The operation of the information recording / reproducing apparatus is controlled in accordance with the operation mode in accordance with a command from, and a part of the information recording / reproducing operation in the operation mode is changed according to the position or the attribute of the information recording medium area. Information recording / reproducing apparatus. 10. The information recording / reproducing apparatus is provided with a mode changeover switch, the operation of the information recording / reproducing apparatus is controlled according to the operation mode according to a command from an operator, and the information recording medium is changed according to the state of the mode changeover switch. An information recording / reproducing apparatus, characterized in that a part of the information recording / reproducing operation according to the operation mode is changed according to the position of the area or the attribute.