JP2002230886A - Method of evaluating optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently make evaluation test for a reproducing function of an optical disk device. SOLUTION: This method has memory means for collecting and storing the navigation information based on the authoring set at an optical disk together with time information, control means for displaying the navigation information stored together with the time information in the memory means in accordance with the time information in reproducing the optical disk and selecting means for selecting the reproducing function of the optical disk device controlled by the control means based on the time information in reproducing the optical disk and evaluates the reproducing function of the optical disk device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evaluation method for an optical disk apparatus for reproducing video information and the like recorded on an optical disk such as a DVD (digital video disk).

[0002]

2. Description of the Related Art DVDs on which video information such as movie software is recorded (hereinafter referred to as DVD software) are prohibited from viewing program titles and chapters and children under a certain age based on the DVD standard. Authoring (structure) such as parental control and time information is determined, and a simple branch structure or a complicated branch structure is set.

Therefore, when developing an optical disk device,
By referring to an instruction manual or a pamphlet attached to the DVD software and estimating the authoring set in the DVD software, it is evaluated whether or not the reproduction function of the optical disk device operates normally. An evaluation test of the reproduction function of the optical disk device requires reproduction of about 400 to 700 test DVD software, and particularly important points in authoring, namely, screen branching, angle switching, audio switching, and the like. At present, it is necessary to evaluate whether or not reproduction can be accurately performed, and in order to perform the evaluation, a great deal of time and labor is required, and at the present time, an oversight mistake occurs.

The prior art is disclosed in, for example, Japanese Patent Application Laid-Open No. 62-10 / 1987.
As described in Japanese Patent No. 3853, when the test-specific medium mounted on the test target device is an unused medium, the information of the writable track on the medium is read,
Inside track of writable track, middle track,
An outer track is divided into three, and several tracks are selected from each of the three divided tracks. If the medium is already used, the inner track, the intermediate track, Only a few unused tracks are selected from the outer tracks and the selected tracks and information indicating that the medium is a test-only medium are registered in the volume management information storage area on the medium, and In some cases, a writing test is performed using a track.

Further, as described in Japanese Patent Application Laid-Open No. 2000-163849, in a reproducing apparatus for information digitally stored in an optical recording medium, which can evaluate a reproducing process of a recording medium such as a DVD. A non-volatile memory controlled by a control circuit capable of selecting or controlling the display or playback of video or audio information, recording and recording the time sequence of navigation parameters during playback of a record carrier such as a DVD. Some navigation parameters can be used to analyze the operation of a user of a device disposed in an information system of a shopping center or a public facility, and to investigate a failure of the device, for example.

[0006]

However, in the former of the prior art described above, a write test of the apparatus could be performed by using an unused track of a recording medium, but a DVD was not used.
It has not been possible to evaluate whether or not the reproduction function of the optical disk device normally operates with respect to a complicated branch structure set in software.

In the latter case of the prior art, information recorded in the non-volatile memory can be reproduced to analyze a user operation and investigate a failure of a recording medium. It is not possible to evaluate whether or not the playback function of the optical disk device normally operates with respect to the complicated branch structure set in the DVD software by playing the test DVD software.

[0008] The present invention has been made in view of the above points, and in order to evaluate the quality of the reproduction function of an optical disk device, an evaluation test of the reproduction function of the optical disk device, which requires a great deal of time and labor, is performed efficiently. It is intended to be able to be performed in a targeted manner. In particular, an evaluation as to whether or not the authoring points set in the DVD software, which are problems in the evaluation test of the reproduction function of the optical disk device, ie, screen branching, angle switching, audio switching, parental level selection, etc., can be accurately reproduced. Is to be performed efficiently.

[0009]

In order to achieve the above object, according to the present invention, there is provided a storage means for collecting and storing navigation information based on an authoring set on an optical disk together with time information, and time information upon reproduction of the optical disk. Control means for displaying the navigation information stored together with the time information in the storage means, and selection means for selecting the reproduction function of the optical disk device, which is controlled by the control means based on the time information during the reproduction of the optical disk. Is provided.

[0010] By these means, it is possible to efficiently perform an evaluation test as to whether or not the reproduction function of the optical disk device operates normally. Particularly, it is possible to efficiently evaluate the quality of the reproduction function at the authoring point. it can.

Further, even if the operator does not operate the keys of the remote controller at the authoring point, the reproduction function of the optical disk device can be selected by transmitting the same signal as the transmission signal from the remote controller. Therefore, omission of a selection operation of a reproduction function of the optical disk device can be eliminated.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a commander device in an evaluation method of an optical disk device according to an embodiment of the present invention, and FIG. 2 uses a commander device in an evaluation method of an optical disk device according to an embodiment of the present invention. FIG. 3 is a flowchart showing an operation of collecting navigation information, FIG. 3 is a block diagram showing a configuration in an evaluation method of the optical disk device according to the embodiment of the present invention, and FIG. 4 is a block diagram of the optical disk device according to the embodiment of the present invention. It is a flowchart which shows operation | movement of the evaluation in an evaluation method.

First, a description will be given based on a block diagram showing a configuration of a commander device in an evaluation method of an optical disk device according to an embodiment of the present invention shown in FIG.

Video information recorded on a test optical disk 2 such as a DVD is optically read by an optical pickup 3. The test optical disk 2 includes a spindle motor 4
, And is rotationally controlled by the spindle servo of the servo circuit 5. Optical pickup 3
Are controlled by the focus servo and the pickup servo of the servo circuit 5.

The video information optically read by the optical pickup 3 is sent to a digital signal processing unit 6,
The analog signal is converted to a digital signal, demodulated, and errors in the demodulated reproduced signal are corrected. And
The error-corrected reproduction signal is sent to a decoder / DA conversion unit 7, where it is separated into a video signal and an audio signal, decoded respectively, and is subjected to DA (digital-to-analog) conversion. Is output as

The control signal for controlling the system, the control signal decoded by the decoder / DA converter 7 and the time information among the reproduced signals error-corrected by the digital signal processor 6 control the entire system. Central processing unit (CP
U) 8.

The remote controller 11 and the key input unit 1
2 is provided with a plurality of keys (not shown) for operating the commander device. The signal transmitted from remote control device 11 is received by remote control receiving unit 10, and the received signal is transmitted to CPU 8. The CPU 8 receives commands from the remote control device 11 and the key input unit 12, controls the servo circuit 5, the digital signal processing unit 6, and the decoder / DA conversion unit 7 to operate the commander device.

During reproduction of the test optical disc, the operator operates the remote control device 11 or the key input unit at the authoring points set on the test optical disc 2, that is, at the screen branching, angle switching, audio switching, parental level selection, and the like. When the key operation of 12 is performed, a signal of the key operation is sent to the CPU 8 and stored in the storage device 9 together with time information as navigation information. In the storage device 9,
Navigation information based on the authoring set for each optical disk under test is stored.

The external input terminal 13 is a terminal for receiving a video signal from an optical disk device (not shown), and outputs a time signal to the storage device 9 based on time information of the video signal input to the external input terminal 13. The navigation information stored together with the information is output while being superimposed on the video signal and displayed on a screen of a display device (not shown).

The remote control signal transmission section 14 is for transmitting a remote control signal to the optical disk device, and is stored in the storage device 9 together with the time information based on the time information of the video signal from the external input terminal 13. By transmitting a remote control signal for selecting a reproduction function according to the navigation information, the optical disk device can be operated.

Next, an explanation will be given based on a flowchart of FIG. 2 showing an operation of collecting navigation information using a commander device in the evaluation method of the optical disk device according to the embodiment of the present invention.

When the reproduction of the optical disk under test is started, the process proceeds from step S1 to step S2, where the video information recorded on the optical disk under test is reproduced and displayed on the screen of the display device.

In step S3, it is determined whether or not the reproduction function is selected by the key operation of the remote control device or the key input unit at the authoring point set on the test optical disk, and the reproduction function is selected by the key operation. In this case, the process proceeds to step S4, and if the reproduction function is not selected by a key operation, the process proceeds to step S5.

In step S4, the key operation for which the reproduction function is selected is stored in the storage device together with time information as navigation information, and the flow advances to step S5.

In step S5, it is determined whether or not the reproduction of the test optical disk has been completed.
, The collection of the navigation information at the authoring point set on the test optical disk is ended, and if the reproduction is not ended, the process returns to step S3, and the steps from step S3 to step S5 are repeated.

When there are a plurality of test optical discs, the test optical discs are exchanged, and steps S1 to S6 are repeated to collect navigation information based on the authoring set for each test optical disc.

When there are a plurality of test optical disks, it is preferable to store a disk management number and the like together with navigation information in order to distinguish the test optical disks.

Next, a description will be given based on a block diagram showing the configuration of the evaluation system of the optical disk device according to the embodiment of the present invention shown in FIG.

The test optical disk 2 is set in the optical disk device 21 for evaluating the reproduction function and reproduced. The video information recorded on the test optical disk 2 is optically read by an optical pickup (not shown) of the optical disk device 21 and subjected to signal processing in the same manner as the optical disk reproducing method described with reference to FIG. / Sound signal is sent to the external input terminal 13 of the commander device 1.

The navigation information stored together with the time information in the storage device 9 of the commander device 1 is read based on the time information of the video / audio signal input from the external input terminal 13, and the read navigation information is read. Is superimposed on the video signal and output, and displayed on the screen of the display device 30.

An operator who evaluates the reproduction function of the optical disk device 21 operates the keys of the remote control device 22 according to the navigation information displayed on the screen of the display device 30 to select the reproduction function, and the selected reproduction function functions. Whether or not the playback function can be evaluated,
It is possible to efficiently evaluate the authoring points, which are particularly problematic in the evaluation test of the reproduction function of the optical disk device, that is, the reproduction functions such as screen branching, angle switching, audio switching, and parental level selection.

Also, based on the time information of the video signal from the external input terminal 13, a remote control signal for selecting a reproduction function is transmitted according to the navigation information stored in the storage device 9 together with the time information. 14 may be transmitted to the optical disk device 21 to select the reproduction function of the optical disk device 21.

In this case, even if the operator does not operate the key of the remote controller at the authoring point, the same signal as the transmission signal from the remote controller 22 is transmitted from the remote controller signal transmitter 14 of the commander device 1. It is possible to eliminate omission of the selection operation of the reproduction function 21.

Next, a description will be given based on a flowchart of FIG. 4 showing an evaluation operation in the evaluation method of the optical disk device according to the embodiment of the present invention.

When the test optical disc is set in the optical disc apparatus for evaluating the reproduction function and the reproduction is started, the process proceeds from step S11 to step S12, where the video signal recorded on the test optical disc is reproduced, and the video signal is transmitted to the commander device. A signal is sent and displayed on the screen of the display device.

In step S13, it is determined based on the time information of the video signal sent from the optical disk device whether or not the current point is an authoring point. If the current point is an authoring point, the process proceeds to step S14. Proceed to S19.

In step S14, based on the time information of the video signal sent from the optical disk device, navigation information collected from the test optical disk and stored together with the time information is read from the storage device of the commander device.
The read navigation information is displayed on the screen of the display device, and the process proceeds to step S15.

In step S15, the reproduction function of the optical disk device is selected, and the flow advances to step S16. The selection of the reproduction function of the optical disk device is executed by a signal from the remote control signal transmission unit of the commander device or a signal from the remote control device of the optical disk device.

In step S16, it is determined whether or not the reproduction function has been operated normally. If the reproduction function has been operated normally, the process proceeds to step S17. If the reproduction function has not been operated normally, step S18 is performed. Proceed to.

In step S17, it is recorded that the reproduction function has been operated normally, and the flow advances to step S19.

At step S18, a defect that the reproduction function did not operate normally is recorded, and the process proceeds to step S19.

In step S19, it is determined whether or not the reproduction of the test optical disk has been completed.
20 to end the evaluation of the optical disk device, and if the reproduction is not ended, the process returns to step S13 and returns to step S13.
Steps S13 to S19 are repeated.

When there are a plurality of test optical discs, the test optical discs are exchanged, and steps S11 to S20 are repeated to perform an evaluation test of the reproduction function of the optical disc apparatus.

[0044]

As described above, according to the evaluation method of the optical disk apparatus according to the present invention, navigation information based on the authoring set on the optical disk is collected and stored together with time information, and the information is reproduced when the optical disk is reproduced. The navigation information stored together with the time information is displayed based on the time information, and the reproduction function of the optical disk device can be selected according to the displayed navigation information based on the time information at the time of reproducing the optical disk. As a result, an evaluation test of the reproduction function of the optical disc device can be efficiently performed, and omission of key operation by the operator at the authoring point can be eliminated.

According to a first aspect of the present invention, there is provided an evaluation method for an optical disk apparatus, wherein navigation information based on authoring set on an optical disk is collected and stored together with time information, and the time information is determined based on time information at the time of reproducing the optical disk. And display the navigation information stored therein together with the optical disc device so that the reproduction function of the optical disc device is selectively controlled in accordance with the navigation information based on the time information at the time of reproduction of the optical disc, and the quality of the reproduction function of the optical disc device is determined. I have.

According to a second aspect of the present invention, there is provided an evaluation method for an optical disk apparatus, wherein navigation information based on the authoring set on the optical disk is collected and stored together with time information, and the time information is collected based on the time information at the time of reproducing the optical disk. The navigation information stored together with the information is displayed, and the reproduction function of the optical disk device is selected in accordance with the displayed navigation information, and the quality of the reproduction function of the optical disk device is determined.

According to a third aspect of the present invention, the evaluation method of the optical disk device is such that the reproduction function of the optical disk device is selectively controlled according to the navigation information displayed based on the time information at the time of reproducing the optical disk. Is judged whether the reproduction function is good or not.

According to a fourth aspect of the present invention, there is provided an evaluation method for an optical disk device, wherein a remote controller selects and evaluates a reproduction function of the optical disk device in accordance with navigation information displayed based on time information during reproduction of the optical disk. ing.

According to a fifth aspect of the present invention, there is provided an evaluation method for an optical disk device, wherein navigation information such as branching of a screen, angle switching, audio switching, and parental level selection based on the authoring set on the optical disk is displayed. ing.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a commander device in an evaluation method of an optical disk device according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of collecting navigation information using a commander device in an evaluation method of an optical disk device according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration in an evaluation method of the optical disk device according to the embodiment of the present invention.

FIG. 4 is a flowchart showing an evaluation operation in an evaluation method of the optical disk device according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 Commander device 2 Test optical disk 3 Optical pickup 4 Spindle motor 5 Servo circuit 6 Digital signal processing unit 7 Decoder / DA conversion unit 8 CPU (central processing unit) 9 Storage device 10 Remote control receiving unit 11, 22 Remote control device 12 Key input unit DESCRIPTION OF SYMBOLS 13 External input terminal 14 Remote control signal transmission part 21 Optical disk device 30 Display device

Claims (5)

[Claims] 1. Screen branching, angle switching, audio switching, and image switching based on authoring set on an optical disc.
Storage means for collecting and storing navigation information such as parental level selection together with time information; and control means for displaying the navigation information stored together with time information in the storage means based on time information during reproduction of the optical disc. And selecting means for selecting a reproduction function of the optical disk device, which is controlled by the control means based on time information at the time of reproducing the optical disk. The optical disk device is selected by the selecting means according to the navigation information displayed by the control means. An evaluation method for an optical disk device, wherein the reproduction function is selected to determine whether the reproduction function of the optical disk device is good or not. 2. A storage means for collecting and storing navigation information based on the authoring set on the optical disk together with time information, and a time information stored in the storage means based on time information at the time of reproducing the optical disk. A control unit for displaying the navigation information; and a selection unit for selecting a reproduction function of the optical disc device. The reproduction unit of the optical disc device is selected by the selection unit according to the navigation information displayed by the control unit. An evaluation method for an optical disk device, wherein the quality of a reproduction function of the device is determined. 3. An evaluation method for an optical disk device according to claim 2, wherein said selection means is controlled by said control means based on time information at the time of reproducing the optical disk. 4. An evaluation method for an optical disk device according to claim 2, wherein said selection means is a remote control device of the optical disk device. 5. The navigation information according to claim 2, wherein the navigation information is information such as screen branching, angle switching, audio switching, parental level selection, etc. based on the authoring set on the optical disc. 5. An evaluation method for an optical disk device according to claim 4.