JP2006309813A - Reproduction method of optical disk device, and optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproduction method of an optical disk device and an optical disk device which can obtain optimum rotation speed in DVD-VIDEO reproduction and DVD data reproduction, while in a method for detecting a specific command while an optical disk is loaded in an optical disk device and controlling the rotation speed at DVD reproduction, a certain operating system issues a specific command in booting the operating system, and even DVD-ROM may be set in a speed limit mode. <P>SOLUTION: After the optical disk is loaded in an optical disk device and started and the operating system is started, the optical disk device detects a specific command received after the laspe of predetermined period and determines the rotation speed of the optical disk according to the content of the information of the optical disk. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk information reproducing method for reproducing data recorded on a medium such as a disk device used as an external storage device such as a computer or a disk device for video reproduction, a disk device, and an electronic apparatus equipped with the disk device. Is.

If the data is read by rotating the disk at high speed to reproduce the digital data information of digital audio data or video data recorded on optical disk media, magneto-optical disk, hard disk media, etc., wind noise or high-speed rotation due to high-speed rotation Noise and power consumption due to the vibration of the noise increase and become a problem. For example, when reproducing information recorded on a DVD according to a user request, in reproducing music and video, the rotation speed is reduced with emphasis on noise reduction and power saving, and data reading recorded on the DVD (ripping) It is necessary to perform high-speed rotation by high-speed reading. Several methods are adopted as a method for discriminating DVD-VIDEO. For example, as in (Patent Document 1), the transfer rate is measured based on the ATAPI command sent from the host computer, and the rotation speed of the disc is determined according to the transfer rate, or the DVD-Video is scrambled data. Is recorded, and a method of determining the rotation speed of the disc by recognizing DVD-Video using this CSS authentication (Patent Document 2), Report key among ATAPI commands issued from application software for DVD playback There is a method of determining a rotation speed by recognizing DVD-Video using a command. Each has its characteristics, and the playback speed is determined by any one or combination of the models and models. In reproducing DVD-VIDEO, it is desirable to reproduce at a lower speed than DVD-ROM with emphasis on quietness and power saving in order to enjoy video and audio.
Japanese Patent Laid-Open No. 2002-008316 JP 2002-367276 A

  However, when an optical disk is mounted on the optical disk apparatus and a method of controlling the rotation speed during DVD playback by adopting the above-described method based on the ATAPI Report Key command is adopted, some operating systems (OS) For example, in Windows (registered trademark) 2000, Windows (registered trademark) Xp, etc., a report key that is a specific command is issued regardless of the state of the drive when the OS is started, and the DVD-ROM is set to the speed limit mode. There was a problem that the data transfer speed of ROM was not achieved.

  In addition, when rotation control of the DVD-VIDEO playback mode is performed by a CSS authentication method, a commercially available press disc usually requires CSS authentication, but a user-created DVD-VIDEO requires Since there is no such CSS authentication information, the rotational speed cannot be controlled by this method.

  An object of the present invention is to improve the performance of DVD information by determining DVD-Video playback and DVD-ROM data transfer.

  According to the optical disk reproducing apparatus of the present invention, the optical disk reproducing apparatus includes an interface connected to a host computer and connects the host computer and the optical disk apparatus, and reproduces information on the optical disk by application software in the host computer. Rotation means for rotating the optical disk at a plurality of rotation speeds, means for receiving a reproduction command from the host computer via the interface, means for selecting the rotation speed by the reception command (specific command), Means for discriminating the type of information on the optical disc, the optical disc is loaded into the optical disc device, start-up is started, and after the OS is started, the received command received after a predetermined period and the information content of the optical disc The rotational speed of the optical disc An optical disc reproducing apparatus characterized by determining the rotation speed before issuing a read command from the host computer, while avoiding the influence of the reproduction command at the time of startup from the host computer The playback operation process becomes easier.

  According to the optical disk reproducing apparatus of the present invention, a data disk such as a DVD-ROM reproduces at the maximum rotational speed, and the data reproduction of the DVD-VIDEO has less noise and less vibration. Can be.

  The invention described in claim 1 is an optical disk reproducing apparatus that includes an interface connected to a host computer and connects the host computer and the optical disk apparatus, and reproduces information on the optical disk by application software in the host computer. Rotating means for rotating at a rotational speed, means for receiving a reproduction command from the host computer via the interface, means for selecting the rotational speed by the received command, and means for discriminating the type of information on the optical disk. An optical disk reproducing apparatus characterized in that an optical disk is mounted on an optical disk apparatus, and after a predetermined period has elapsed after the host computer is started, the rotational speed of the optical disk is determined based on the received reception command and the information content of the optical disk. , Host computer With avoiding the influence of the play command startup from data, before issuing a read command from the host computer can determine the rotational speed, it is easy playback operation process from the host computer.

  According to a second aspect of the present invention, in the first aspect of the present invention, the optical disk is rotated based on a specific command received after the optical disk is loaded into the optical disk apparatus and started to start and preparation for the optical disk information acquisition operation from the OS is completed. 2. The optical disk reproducing apparatus according to claim 1, wherein the speed is determined, and the specific command can be reliably acquired.

  The invention described in claim 3 is the optical disk reproducing apparatus according to claim 1 or 2, wherein the optical disk is a DVD player, and reads information on a DVD disk medium and rotates based on the information. The speed can be controlled.

  The invention according to claim 4 is the optical disk reproducing apparatus according to claim 3, wherein the specific command is a report key command of the ATAPI interface, and the disc information such as a region code in the DVD-VIDEO format. The rotation speed of the playback mode of the DVD-VIDEO can be determined based on a Report Key command that is a command for acquiring the DVD.

  According to the fifth aspect of the present invention, when the optical disk is determined to be a DVD-ROM, the maximum rotation speed is set from among the rotation speeds. 5. The optical disk reproducing apparatus according to claim 1, wherein the rotational speed is such that the noise can be reduced at the time of reproducing data from a DVD-ROM at the highest speed. -VIDEO data can reduce vibration and noise during playback.

  The invention described in claim 6 is an optical disk reproducing method for reproducing information from an optical disk in response to a command from a host computer. The optical disk is mounted on an optical disk device, the host computer is activated, and the OS of the host computer is activated. The optical disk information acquisition operation preparation from the OS is completed, and after the acquisition operation preparation is completed, the rotation speed of the optical disk is determined based on a specific command received by the optical disk apparatus, and the optical disk information is reproduced. According to this method, it is possible to determine the rotational speed before issuing a read command from the host computer, while avoiding the influence of the playback command at the time of startup from the host computer. The playback operation process becomes easier.

  According to a seventh aspect of the present invention, in the optical disk reproducing method according to the sixth aspect, the optical disk is a DVD, and the specific command is a report key of an ATAPI interface issued so as to acquire information on the DVD. Thus, the rotation speed of the DVD-VIDEO playback mode can be determined based on the Report Key command which is a command for acquiring disc information such as a region code in the DVD-VIDEO format.

  According to the eighth aspect of the present invention, when the optical disk is determined to be a DVD-ROM, the maximum rotation speed is set from among the rotation speeds. 8. The optical disk reproducing method according to claim 7, wherein when the optical disk is determined to be a DVD-ROM, a maximum rotational speed is set from among the rotational speeds. 5. An optical disc reproducing apparatus according to claim 1, wherein when the disc is determined to be a DVD-VIDEO disc, the rotation speed is set such that data reproduction is not hindered and rotation noise can be reduced. In the DVD-ROM data reproduction, the reproduction speed is the highest, and in the DVD-VIDEO disc, vibration and noise can be reduced during reproduction.

  The invention according to claim 9 is a method of reproducing an optical disk device, wherein the optical disk device performs a CSS authentication operation if the CSS authentication operation based on the optical disk information is necessary after the optical disk information is acquired. If successful, the DVD-VIDEO is determined, and if the CSS authentication operation based on the optical disk information is not required or the CSS authentication operation fails, the reception status of the Report Key command from the host computer is confirmed, and If the Report Key command has been detected or the Report Key command has been detected and the optical disc is determined to be a recording disc, the playback method of the optical disc apparatus that determines DVD-VIDEO can be used for video and audio of a commercially available DVD-VIDEO press version. When playing, CS The authentication information may be a small reproducing method of performing an original to the speed limit noise. In addition, since the DVD-VIDEO created by the user does not have CSS authentication information, the disk speed cannot be limited by CSS authentication. Therefore, the rotation speed can be limited in the reception state of the Report Key issued by the application. DVD-VIDEO can also be a reproducing method with less noise. Further, in the DVD-ROM, since it is possible to determine the rotation speed at a high speed, the performance can be improved.

  The invention according to claim 10 is a method of reproducing an optical disk device, wherein the optical disk device performs a CSS authentication operation if the CSS authentication operation based on the optical disk information is necessary after obtaining the optical disk information, and the CSS authentication operation is successful. If the CSS authentication operation is unsuccessful, it is determined whether the optical disk is a recording system disk, the reception state of the Report Key command from the host computer is detected, and the Report Key command is received. Is a DVD-VIDEO discriminating method, and if there is no Report Key command received, it is discriminated as a DVD-ROM. This is a playback method of an optical disc apparatus, which is created by the user not only for a press version DVD-VIDEO but also for a recording type optical disc. DVD-VIDEO can be detected It so, it is speed limited by the reception state of the Report Key Canada, may also DVD-VIDEO user and less regeneration method of noise. Further, in the DVD-ROM, since it is possible to determine the rotation speed at a high speed, the performance can be improved.

  According to the eleventh aspect of the present invention, there is provided a rotating means for rotating the optical disk at a plurality of rotational speeds, an interface connected to the host computer, a means for receiving a reproduction command from the host computer via the interface, and a rotation by the reception / reproducing command. An optical disc apparatus having means for selecting a speed, means for discriminating the type of information on an optical disc, and a function for detecting a CSS authentication operation with a host computer, and receiving a report key command from the CSS authentication and the host computer The optical disk apparatus is characterized in that the DVD-VIDEO is determined by the status and the rotation speed is controlled. The DVD-VIDEO is determined by the CSS authentication and the report key command reception status from the host computer, and the rotation speed is determined by the data. Rotating without hindering playback An optical disc apparatus characterized by having a rotational speed capable of reducing the noise of the sound. In the DVD-VIDEO playback, an optical disc that can be reproduced with low noise and a DVD-ROM can be rotated at a high speed. Equipment can be provided.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described in detail.

  FIG. 1 is a block diagram showing a configuration of an optical disc apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the optical disc apparatus 1 includes a pick-up module 12, a spindle motor 13, a feed motor 14, a servo module 15, a signal control unit 16, a CPU 17, a main memory 18, a buffer memory 19, and an interface 110. Yes.

  Then, it is connected to the host computer 111, and the data input from the host computer 111 and recorded on the optical disk 11 is output to the host computer 111.

  The pickup module 12 which is an optical pickup means has a laser light emitting element (not shown), and performs reproduction by irradiating a laser beam when reading data from the optical disk 11. The spindle motor 13 rotates the optical disc 11.

  A feed motor 14 that is a moving means of the optical pickup moves the pickup module 12 toward and away from the spindle motor 13. The servo module 15 is a rotational speed control means for controlling the movement control of the feed motor 14 and the rotational speed of the spindle motor 13. The interface 110 transmits and receives data signals with the host computer 111. The CPU 17 includes a main memory 18, and controls the servo module 15, the signal processing 16, the interface 110 with the host computer 111, and the recording address calculation means by a program (firmware) recorded in the main memory 18. The buffer memory 19 is a prefetching buffer that temporarily stores data for the optical disk 11.

  Application software that runs on a host computer such as playback software issues a read command to read data from a certain position on the medium, and causes the optical disc apparatus to work. This command is a command signal for causing the optical disk drive device to perform a specific operation, and a command that application software instructs the optical disk drive is called an ATAPI (ATA Packet Interface) command.

  FIG. 2 is a diagram showing a command issued by the application software according to the first embodiment of the present invention and a transfer state reproduced by the optical disc apparatus.

  As shown in FIG. 2, when reproducing a series of data as shown in FIG. 2 (a), the whole data is not reproduced with one reproduction command, but as shown in FIG. 2 (b). The data is divided and transferred in units of playback commands. This data is divided into fine data of 2K to 64KB. The host computer 111 receives the transferred reproduction data.

  The command data passes through the IDE cable 112 connecting the host computer 111 and the optical disc apparatus 1 and is received by the ATAPI interface (controller) 110 on the drive side. Thereafter, the firmware stored in the main memory 18 retrieves the command data from the ATAPI controller 110, analyzes it, and executes the instruction. The application side issues commands from the host computer 111, and the hardware receives data reception.

  The host computer 111 continues to send ATAPI commands in order to monitor the state of the optical disc apparatus 1. The optical disk device 1 stores the type of the optical disk 11 and the state of the optical disk device 1 and responds to a request from the host computer 111 side.

  Hereinafter, embodiments of the present invention will be described with reference to a flowchart of a processing procedure.

  FIG. 3 is a diagram showing a flow up to the reproduction of the optical disc by the application software according to the first embodiment of the present invention.

  The host computer 111 is activated (S301), a BOOT activation sequence is started (S302), and the activation drive is confirmed by the BIOS (S303). If the start drive is set to CD before the HDD, a command is issued to the optical disc apparatus 1 (S304), and it is determined whether BOOT is possible. Thereafter, the OS is started (S305), a report key, which is a specific command, is issued in order to acquire disk information (S306), and preparations for reading information on the optical disk 1 are completed (S307). Thereafter, application software for reproducing the disc information is loaded on the host computer 111 (S308), a read command is issued to the optical disc apparatus 1 so as to reproduce the disc information, and the information is reproduced (S309).

  Normally, a report key of a specific command is issued after the OS is started. However, when the optical disk 1 is inserted and a CD drive is designated as the BIOS startup drive, the host computer reads the READ in (S304). The command is issued. Therefore, in the embodiment of the present invention, the time from the start of the host computer until the issuance of the specific command after the predetermined time elapses is such that the command is not included in the speed limit condition.

  FIG. 4 is a diagram showing DVD-VIDEO playback control according to the first embodiment of the present invention.

  The host computer is activated (S401), and it is determined whether or not a predetermined time has elapsed (S402). When the predetermined time has elapsed, a specific command is received (S403) and the specific command is executed (S404). The predetermined time may be set to the time from the completion of the BOOT sequence until the OS is started, and may be set by determining the CPU clock, or may be set by a model in which the optical disk device is mounted. .

  Next, it is determined whether or not the acquisition of the disc information from the host computer 111 is started (S405). When the acquisition is started, whether or not the disc is DVD-VIDEO is determined based on the reception status of the report key, which is a specific command. If the specific command is received, the DVD-VIDEO playback speed is set (S407). If the DVD-ROM is reading data, the data playback speed is set (S408), and the command detection pattern is terminated (S408). S409).

  FIG. 5 is a diagram showing a data read procedure according to the first embodiment of the present invention.

  Next, when a data read request is started (S501), it is determined whether or not the DVD-VIDEO playback speed is specified (S502). If the DVD-VIDEO playback speed is set, DVD-VIDEO playback is set. The speed is set (S504). If the DVD-VIDEO playback speed is not set, the data playback speed is set (S503), the data reading is executed (S505), and the data reading is terminated (S506).

(Embodiment 2)
The second embodiment of the present invention will be described in detail below. In addition, the overlapping part regarding the same structure and processing part as Embodiment 1 shall not be described repeatedly.

  FIG. 6 is a diagram showing a command pattern detection procedure according to the second embodiment of the present invention.

  The host computer is activated (S601), the OS is activated (S602), and disk information acquisition is started (S603).

  The disk information acquisition operation is started, and a read command is issued in the operation of reading the file allocation information (S604). With the issue of the read command, reception of the Report Key command, which is a specific command, is started (S605). When the acquisition is started, it is determined whether the disc is a DVD medium (S606), and the specific command has been received. For example, the video playback rotational speed is set (S607), and if it is a DVD-ROM, the data playback rotational speed is set (S608), and the command detection pattern is terminated (S609).

(Embodiment 3)
Hereinafter, Embodiment 3 of the present invention will be described in detail. In addition, the overlapping part regarding the same structure and processing part as Embodiment 1, 2 will not be described repeatedly.

  FIG. 7 is a diagram showing a DVD determination method according to Embodiment 3 of the present invention.

  In the determination of a DVD-VIDEO of a press version such as a commercially available DVD-VIDEO, the optical disc apparatus can shorten the determination time by using CSS authentication with the host computer. In general, the press version DVD-VIDEO makes a DVD-VIDEO judgment by CSS authentication operation with a host computer, and the user-created DVD-VIDEO makes a recording system. In response to a specific command received from the host computer, it is determined whether or not the DVD-VIDEO is used, the rotation speed of the hot-cut disk is set, and the playback speed is set.

  When the determination of the DVD is started (S701), the optical disc apparatus acquires disc information (S702), determines whether or not a CSS authentication operation with the host computer has been performed (S703), and performs a CSS authentication operation with the host computer. If there is, the DVD-VIDEO playback speed is set (S706).

  If the CSS authentication operation with the host computer is not performed, or if the CSS authentication with the host computer fails, it is determined whether or not a specific command is received from the host computer (S704), and if the specific command is received. Then, it is determined whether or not the disc is a recording disc (S705). If the disc is a recording disc, the DVD-VIDEO playback speed is set (S706). If the disc is not a recording disc, the data playback speed is set (S707).

  If there is no CSS authentication operation with the host computer and no specific command is received from the host computer, it is determined as DVD data, the rotation speed is set to the data reproduction speed (S707), and the determination is terminated (S708). .

  Further, the order of the CSS authentication with the host computer and the determination of receiving a specific command from the host computer may be reversed.

  FIG. 8 is a diagram showing another DVD determination method according to Embodiment 3 of the present invention.

  When the DVD determination is started (S801), the disc information is acquired (S802), it is determined whether a specific command is received from the host computer (S803), and if the specific command is received from the host computer, the optical disc Is a recording disk (S804), and if it is a recording disk, the rotation speed of the optical disk is set to the DVD-VIDEO playback speed (S807). If the optical disk is not a recording disk, it is determined whether or not a CSS authentication operation with the host computer has been performed (S805). If a CSS authentication operation with the host computer has been performed, the rotation speed of the optical disk is set to the DVD-VIDEO playback speed ( S807).

  If the specific command is not received from the host computer and the CSS authentication operation with the host computer is not performed, the data reproduction speed is set (S806).

  In this way, in DVD-VIDEO playback, it can be determined that the disc is a DVD-VIDEO disc, and the rotational speed is such that data reproduction is not hindered and the rotational noise can be reduced. Can be accessed.

  Regarding the reception of the report key, which is the specific command of the third embodiment, it is preferable to use the playback method based on the determination of DVD-VIDEO by the specific command described in the first embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a disk reproducing apparatus equipped with a disk apparatus that reads and reproduces information recorded on a disk, for example, a reproducing apparatus having a rotating recording medium such as an optical disk apparatus, a magneto-optical disk apparatus, and a hard disk apparatus. .

1 is a block diagram showing the configuration of an optical disc apparatus according to Embodiment 1 of the present invention. The figure which showed the transfer state which the command which the application software concerning Embodiment 1 of this invention issues, and the optical disk apparatus reproduce | regenerate The figure which showed the flow until the reproduction | regeneration of an optical disk by the application software concerning Embodiment 1 of this invention The figure which shows the reproduction control of DVD-VIDEO concerning Embodiment 1 of this invention. The figure which showed the procedure of the data reading concerning Embodiment 1 of this invention The figure which showed the procedure of the command pattern detection concerning Embodiment 2 of this invention The figure which showed the judgment method of DVD concerning Embodiment 3 of this invention The figure which showed the determination method of another DVD concerning Embodiment 3 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk apparatus 11 Optical disk 12 Pickup module 13 Spindle motor 14 Feed motor 15 Servo module 16 Signal control part 17 CPU
18 Main memory 19 Buffer memory 110 Interface 111 Host computer 112 IDE cable

Claims (11)

An interface connected to a host computer and connecting the host computer and the optical disc device;
An optical disk reproducing device for reproducing information on an optical disk,
Rotating means for rotating the optical disc at a plurality of rotational speeds;
Means for receiving a playback command from the host computer via the interface;
Means for selecting the rotational speed by a received command;
Means for discriminating the type of information on the optical disc,
An optical disk reproducing apparatus, wherein an optical disk is mounted on the optical disk apparatus, and the rotation speed of the optical disk is determined based on the received reception command and the information content of the optical disk after a predetermined period after starting the host computer. The optical disk rotation speed of the optical disk is determined based on a specific command received after the optical disk is mounted in the optical disk apparatus and started to start, and preparation for an optical disk information acquisition operation from the OS is completed. Optical disk playback device. 3. The optical disk playback apparatus according to claim 1, wherein the optical disk is a DVD playback. 4. The optical disk reproducing apparatus according to claim 3, wherein the specific command is a report key command of an ATAPI interface. When the optical disc is determined to be a DVD-ROM, the maximum rotation speed is set from the rotation speeds,
5. The optical disc reproducing apparatus according to claim 1, wherein when the disc is determined to be a DVD-VIDEO disc, the rotation speed is set so as not to interfere with data reproduction and to reduce the rotational noise. An optical disc reproducing method for reproducing information from an optical disc by a command from a host computer,
An optical disc is mounted in the optical disc device,
The host computer boots and the host computer OS boots,
Preparation for obtaining optical disk information from the OS is completed,
Determine the rotation speed of the optical disk based on the specific command received by the optical disk device after the acquisition operation preparation is completed,
An optical disc reproducing method for reproducing information on an optical disc. 7. The optical disc reproducing method according to claim 6, wherein the optical disc is a DVD, and the specific command is a report key of an ATAPI interface issued so as to acquire information on the DVD. When the optical disk is determined to be a DVD-ROM, the maximum rotation speed is set from among the rotation speeds, and when it is determined to be a DVD-VIDEO disk, data reproduction is not hindered and rotation noise can be reduced. 8. The optical disk reproducing method according to claim 7, wherein the rotation speed is set. A method for reproducing an optical disk device, comprising:
The optical disc apparatus, after obtaining optical disc information,
If a CSS authentication operation based on the optical disc information is necessary, a CSS authentication operation is performed,
If the CSS authentication operation is successful, the DVD-VIDEO is determined,
If the CSS authentication operation based on the optical disc information is not required or the CSS authentication operation fails, check the reception status of the Report Key command from the host computer,
A method of reproducing an optical disk apparatus, comprising: detecting a report key command from the host computer or detecting the report key command and determining that the optical disk is a recording disk, and determining that the optical disk apparatus is a DVD-VIDEO. A method for reproducing an optical disk device, comprising:
The optical disc apparatus, after obtaining optical disc information,
If a CSS authentication operation based on the optical disc information is necessary, a CSS authentication operation is performed.
If the CSS authentication operation is successful, the DVD-VIDEO is determined,
If the CSS authentication operation is unsuccessful, it is determined whether the optical disc is a recording-type disc, and a reception state of a Report Key command from the host computer is detected,
If the Report Key command is received, it is determined as DVD-VIDEO,
A method of reproducing an optical disc apparatus, wherein a DVD-ROM is determined if no report key command is received. Rotating means for rotating the optical disc at a plurality of rotational speeds;
An interface connected to the host computer;
Means for receiving a playback command from the host computer via the interface;
Means for selecting the rotational speed by the reception reproduction command;
Means for determining the type of information on the optical disc;
An optical disc apparatus having a CSS authentication operation detection function with a host computer,
In the CSS authentication and the report key command reception state from the host computer,
An optical disc apparatus characterized by determining DVD-VIDEO and controlling a rotation speed.

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