JP2001285772A - Image reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device for preventing unrequired vibration and noise due to the continuous operation of a motor and the wear of the motor and a semiconductor laser and immediately displaying the image of a linking destination. SOLUTION: A control part 7 judges whether or not an image being reproduced at present is an infinite still image, and when it is the infinite still image, acquires the still image of the linking destination of the infinite still image by a read part beforehand, stores it in a temporary storage part, and when the linking destination is selected by operation input, performs control so as to read and display the still image stored beforehand. Further, in the case that the reproduction of the same infinite still image is continued for prescribed time or longer, the driving means (motor) of the read part and a light emitting means (semiconductor laser) are stopped and a processing for reading and storing the still image of the linking destination beforehand is performed. Thus, a display processing in the case that the linking destination of the infinite still image is selected is quickly performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reproducing apparatus, and more particularly to an image reproducing apparatus which can immediately display a linked image when a still image is displayed for a predetermined time or more.

[0002]

2. Description of the Related Art A DVD video player 100 as a conventional image reproducing apparatus will be described with reference to a hardware configuration shown in FIG. The DVD video player 100 includes a drive unit & servo processing unit 101, an input console 10
2, signal processing unit 103, video / audio decoding processing unit 105,
Video encoding unit 107, D / A conversion processing unit 109, CPU
111, a memory 113, and a semiconductor laser 115.

Drive unit & servo processing unit 101
Has a motor 1011 and a semiconductor laser 1013. Drive unit & servo processing unit 101
The DVD video 200 is rotated by a motor 1011, and the DVD video 200 is irradiated with a semiconductor laser to acquire a digital signal from the DVD video 200.

[0004] The input console 102 is used by a user to enter a DV format.
The D video player 100 has buttons and the like for inputting operations to the player 100. The signal processing unit 103 performs processing on the obtained digital signal. Video /
The audio decoding processing unit 105 outputs, among the acquired digital signals,
The video signal is subjected to MPEG2 decoding processing, the audio signal is subjected to decoding processing suitable for the audio format, and subpicture signals such as subtitles are subjected to subpicture decoding processing.

[0005] The video encoder 107 converts the digital video signal decoded by the video / audio decoder 105 into an analog video signal. D / A conversion processing unit 109
Converts the audio signal decoded by the video / audio decoding processing unit 105 into an analog audio signal. The CPU 111 centrally controls the operation of each unit.

Next, FIG. 8 shows an example of an image reproduced by the DVD video player 100. The image shown in FIG. 8 is an infinite still image in menu display. Infinite still images have a button B2 for the user
01, B203, and B205 in many cases.

The user can perform a desired operation (for example, reproduction of a title, setting of a subtitle language, etc.) by selecting an intended button using a controller or the like.

[0008]

The above-mentioned DVD video player 100 has the following problems. In the infinite still image, the infinite still image is continuously displayed until the user makes a selection. At this time,
Even if there is no selection from the user and the infinite still image is displayed for a long time, the drive unit (particularly, the motor 1011 and the semiconductor laser 101
3) keeps working.

However, if there is no selection from the user and an infinite still image is simply displayed, there is no need to read data from the DVD video 200. Therefore, there is a problem that unnecessary vibration and noise are generated as the motor 1011 continues to operate.
There is also a problem that the motor 1011 and the semiconductor laser 1013 are consumed more than necessary.

Further, when a button displayed in the infinite still image is selected, data on the linked image linked to the button is obtained after the selection, so that when displaying the linked image, There is a problem that it takes time.

Therefore, the image display apparatus according to the present invention prevents unnecessary vibration and noise due to the continued operation of the motor, consumption of the motor and the semiconductor laser, and displays the linked image immediately. It is an object of the present invention to provide an image display device capable of performing the following.

[0012]

According to the image reproducing apparatus of the present invention, it is determined whether or not the image being reproduced is a still image. If the image is a still image, the link of the still image is determined. The preceding still image is previously acquired by the reading unit and temporarily stored, and when a link destination is selected by an operation input, the previously stored still image is read and displayed.

Therefore, the display processing when the link destination of the still image is selected can be quickly performed.

[0014] In the image reproducing apparatus according to a second aspect, the control unit includes:
If the playback of the same still image continues for more than a predetermined time,
The driving unit of the reading unit is stopped, and a still image at the link destination is read and stored in advance.

Therefore, when the same still image display continues, the driving means is stopped to reduce the load on the driving means, and when the link destination is selected thereafter, the previously stored still image is displayed. Is displayed, quick processing can be performed.

In the image reproducing apparatus according to a third aspect, the control unit includes:
If the playback of the same still image continues for more than a predetermined time,
In addition to stopping the light emission of the light emitting unit of the reading unit, a process of reading and storing a linked still image in advance is performed.

Accordingly, when the same still image is displayed continuously, the light emission of the light emitting means is stopped to reduce the load on the light emitting means, and when the link destination is subsequently selected, the light is stored in advance. By displaying a still image,
Rapid processing can be performed.

According to the image reproducing apparatus of the present invention, the still image is an infinite still image. Therefore, when the same infinite still image display continues, the driving unit is stopped, so that the load on the driving unit can be particularly reduced.

Further, when the same infinite still image display continues, the light emission of the light emitting means is stopped, so that the load on the light emitting means can be particularly reduced.

In the image reproducing apparatus according to a fifth aspect, when the still images have a hierarchical structure, the control unit performs a process of reading and storing the still images up to a predetermined plurality of layers in advance.

Therefore, since the still images of a plurality of levels are stored, the display processing of the still images can be performed quickly even if the return time from the stop state of the driving means / light emitting means is long.

According to the image reproducing method of the present invention, it is determined whether or not the currently reproduced image is an operation waiting image. If the image is an operation waiting image, a linked image of the operation waiting image is read in advance. Obtained by the department and temporarily stored,
When a link destination is selected by an operation input, a still image stored in advance is read and displayed.

Therefore, the display processing when the link destination of the operation waiting image is selected can be quickly performed.

"Still image" means an image displaying the same screen for a certain period of time. In the embodiment, an infinite still image and a finite still image correspond to this.

"Moving image" means an image that is not a still image. Images other than the infinite still image and the finite still image correspond to this.

An "operation waiting image" is an image that can receive an operation from a user, and means an image on which the next processing is performed for the first time after an operation from the user. Or a moving image. In the embodiment, an infinite still image and a finite still image correspond to this.

Here, the correspondence between each component of the claim and each component of the embodiment will be described. The reading section is in the drive unit & servo processing section 101, the operation input section is in the input console 102, the control section is in the CPU 111, the temporary storage section is in the memory 113, and the driving means is the motor 1011.
The light emitting means corresponds to the semiconductor laser 1013, respectively.

Further, the control unit executes each step shown in the flowcharts of FIGS.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] Overall Configuration of Image Reproducing Apparatus FIG. 1 shows the overall configuration of an image reproducing apparatus 1 according to the present invention. The image reproducing device 1 includes a reading unit 3, an operation input unit 5,
Control unit 7, temporary storage unit 9, driving unit 11, light emitting unit 1
3.

The reading section 3 reads out image information recorded on a recording medium. The operation input unit 5 receives an operation input of the operator. The control unit 7 controls the reproduction of the image information read by the reading unit 3 according to the operation input from the operation input unit 5, and outputs an image signal to the display 17.

The control section 7 determines whether or not the currently reproduced image is a still image. If the image is a still image, the reading section obtains a still image linked to the still image by the reading section in advance. It is stored in a temporary storage unit, and when a link destination is selected by an operation input, a still image stored in advance is read and controlled to be displayed.

Further, when the reproduction of the same still image has continued for a predetermined time or more, the control unit 7 stops the driving unit 11 of the reading unit and reads and stores the linked still image in advance. .

Further, when the reproduction of the same still image has continued for a predetermined time or more, the control unit 7 stops the light emission of the light emitting means 13 of the reading unit and reads and stores the linked still image in advance. I do.

Thus, the display processing when the link destination of the still image is selected can be quickly performed.

2. DVD video player DVD which is one embodiment of the image reproducing apparatus 1 according to the present invention
(Digital Versatile Disc) The video player 21 will be described below.

2.1. Hardware Configuration of DVD Video Player The hardware configuration of the DVD video player 21 which is an embodiment of the image reproducing apparatus according to the present invention is the same as that of the conventional DVD video player 100 shown in FIG. However, the control operation performed by the CPU 111 on each unit when an infinite still image is reproduced is different.

Note that there is a "finite still image" as a concept corresponding to the "infinite still image". An infinite still image means that there is no user operation (button selection, etc.)
A still image that displays the same screen all the time. on the other hand,
The “finite still image” refers to a still image that automatically performs a predetermined operation after displaying the same screen for a certain period of time.

Further, in this embodiment, when the "infinite still image" and the "finite still image" are displayed, that is, when the image related to the menu is displayed, the "infinite still image" is displayed. It does not matter whether the image is displayed or an “infinite still image” is displayed when the image related to the title is displayed.

2.2. Flowchart The difference between the control operations will be described with reference to the flowcharts shown in FIGS. The CPU 111 determines whether or not the image currently being reproduced is an infinite still image (S
1).

2.2.1. Infinite Still Image Judgment Whether or not the image currently being reproduced is an infinite still image is determined by the following procedure. The data obtained from the DVD video includes data indicating whether or not the currently reproduced image is an infinite still image.

Here, the data structure of the DVD video will be briefly described with reference to FIG. 4A. A DVD video has an area for recording data relating to data capacity (volume) and file structure and an area (DVD video zone) for recording data relating to video reproduction. The data recorded in this DVD video zone consists of one video manager and one
Or, it is roughly divided into a plurality of video title sets.

The video manager (VMG) is navigation information (VMGI: Vid) for managing the entire disc.
eo ManaGer Information) and menu presentation data for the entire disc (VMGM_VOBS: Vide
o OBject Set for Video ManaGer Menu).

On the other hand, a video title set (VTS: Video
Title Set) is navigation information (VTSI: Video Title Set Information) for managing titles, and menu presentation data for titles (VTSM_VOBS: Video OBject Set for Video Title Set M).
enu), title presentation data (VTSTT_V
OBS: Video OBject Set for Video Title Set Title),
And so on.

The presentation data refers to video and audio data to be reproduced. On the other hand, navigation information refers to data for managing and controlling presentation data.

A part of the VMGI, specifically, the video manager menu PGCI unit table (VMGM_PGCI_UT: V
ideo ManaGer Menu ProGram Chain Information Unit T
In the “able”, program chain information (PGCI: ProGram Chain Information) for the VMG menu is recorded. Also, a part of the VTSI, specifically, the video title set menu PGCI unit table (VTSM_PGCI_UT: Video
Title Set Menu ProGram Chain Information Unit Tab
In le), the PGCI for the VTS menu is recorded.

Note that the VMG menu is a menu for the entire Disc. The VTS menu is a menu for a title belonging to the VTS. The PGCI includes the order of reproducing cells in the VOBS, cell addresses, and the like.

FIG. 4B shows the data structure of the PGCI. There are three types of still images: PGC stills, cell stills, and VOBU stills. Among them, PGC stills and cell stills have two types: “finite still” and “infinite still”.
There are different types of still images. Information on whether or not the PGC still is an infinite still image exists in program chain general information (PGC_GI: PGC General Information). Information on whether or not a cell still is an infinite still image is stored in a cell playback information table (C_PBIT: Cell Playback Information).
Table). Information about VOBU stills is also described in C_PBIT.

As described above, it is determined whether or not the currently reproduced image is an infinite still image based on the information on whether or not the image is “infinite still” recorded in PGC_GI and C_PBIT.

When it is determined that the image is not an infinite still image, a normal reproduction operation is performed as in the case of the conventional DVD video player.

If it is determined that the image is an infinite still image, the internal timer starts counting (S3: FIG. 2).
reference). The reason why the internal timer starts counting is to measure the time during which no operation is performed by the user, that is, the time during which the infinite still image is continuously reproduced.

2.2.2 Flowchart (1) It is determined whether or not an operation has been performed by the user (S5). If there is no operation, it is determined whether or not a predetermined time has elapsed as shown in FIG. 3 (S21). . If the time during which there is no operation from the user does not exceed the predetermined time, it is further determined whether or not there is an operation from the user (S5: see FIG. 2).

Returning to step S21 in FIG. 3, when the time during which no operation is performed by the user has been longer than a predetermined time, that is, when the reproduction of the same infinite still image has continued for a predetermined time or more, the internal timer is counted. Is stopped (S2
3). Then, it is determined whether or not all the information on the buttons (hereinafter referred to as button information) present in the infinite still image displayed on the screen is currently read, that is, whether or not there is any button from which the button information has not been read. A determination is made (S25). If there is a button that has not been read, button information about the button is acquired.

2.2.3 Acquisition of Button Information Button information includes the number, color, arrangement, display time, button execution command, and the like of buttons. The button execution command is a command for determining an operation after button determination.
For example, for the “next menu” button, a command “jump to a designated menu (corresponding to the next menu)” corresponds to the button execution command.

Such button information exists in the playback control information packet (PCI_PKT: Play Control Information_PacKeT) of the navigation pack (NV_PCK) (see FIG. 5). Here, the position where the PCI_PKT exists will be described with reference to FIG.

VOBs such as VMGM_VOBS, VTSM_VOBS, and VTSTT_VOBS (Video Object Set: Video OBject Se
t) is one or more VOBs (video object: Video
OBject). The VOB is composed of one or more cells (C: Cell). Furthermore, C
Is composed of one or a plurality of VOBUs (Video Object Units). further,
VOBU includes one or more NV_PCK, A_PCK (Audio Pack: Audio PaCK), V_PCK (Video Pack: Video PaCK), SP
_PCK (Sub Picture Pack). Furthermore, NV_PCK is PCI_PKT and DSI_PKT
(Data Search Information Packet: Data Search Information
PacKeT).

By obtaining the PCI_PKT existing at such a position, button information can be obtained.

2.2.4 Flowchart (2) Returning to step S25 in FIG. 3, if there is acquired button information, a button execution command is extracted from the acquired button information and its contents are analyzed (S27). Analyzed button execution command is "jump to menu"
If the command is a branch command for a menu such as
The data existing at the jump destination address is read.

Then, the acquired data is stored in a predetermined location in the memory 113 (S33). Here, FIG. 6 shows a data structure of an image related to a menu stored in the memory 113.

The memory 113 stores a menu ID, video information, PGCI, and presentation data as information on an infinite still image. Generally, a menu ID is data representing a function of a stored menu image.
There are six menu IDs: title menu, root menu, audio menu, sub-picture menu, angle menu, and PTT menu.

The video attribute is data required for displaying an image. The attribute is NTSC, PAL, or 4: 3.
The data indicates whether the video is a standard video or a 16: 9 wide video. Note that the presentation data indicates image data for displaying an image related to a menu, and the PGCI is data for reproducing the acquired presentation data.

The data relating to the infinite still image is stored in the memory 1 in association with the button serving as the link source.
13 is stored.

Returning to step S25 in FIG. 3, it is determined whether or not there is a button for which the link destination information has not been read yet.
Judge again.

When the button information has been read for all the buttons, a button read flag indicating that the button information has been read for all the buttons is stored in the memory 11.
3 is set at a predetermined location (S35). Then, the rotation of the disk is stopped (S37). At the same time, the emission of the semiconductor laser is stopped. Thus, unnecessary vibration and noise can be prevented, and unnecessary consumption of the semiconductor laser and the like can be prevented.

After the rotation of the disk is stopped, the presence or absence of a user operation is monitored (S39). If there is an operation from the user, the rotation of the disk and the emission of the semiconductor laser are restarted (S41). At the same time, the internal timer starts counting (S43).

Returning to step S5 in FIG. 2, if there is an operation from the user, the internal timer is cleared once (S7). It is determined whether or not the user has performed a determination operation on the button (S9). If there is no determination operation for the button, it is determined whether a predetermined time has elapsed (S
11). If the predetermined time has elapsed, the process returns to step S3, and the internal timer starts counting again.

If there is a decision operation on the button, the counting of the internal timer is stopped (S13). Then, it is determined whether or not the button reading flag is set (S15). If the button reading flag has been set, data on an infinite still image that is read in advance and recorded in the memory 113 is acquired (S1).
7). Thereby, the display processing when the link destination of the infinite still image is selected can be quickly performed.

If the button reading flag is not set, it means that the data at the link destination of the button, that is, the data relating to the menu image corresponding to the button has not been read. Therefore, the button information of the corresponding button is obtained and analyzed. Then, a predetermined operation is executed based on the button execution command of the button (S19).

[Other Embodiments] In the first embodiment, when an infinite still image has been displayed for a certain period of time or more, the linked image is read. However, the predetermined operation may be performed even when the finite still image is displayed for a certain period of time.

In the above-described embodiment, when the infinite still image is displayed for a certain period of time or more, the operation of reading the linked image is performed. Such an operation may be performed only when the infinite still image is related to a menu. In general, many infinity still screens are related to menus. Therefore, when an infinite still image related to menus is displayed for a certain period of time or more, a predetermined operation is performed, so that the processing of the CPU 111 is performed more efficiently. be able to.

Whether or not the infinite still screen is related to a menu is determined as follows. In the playback control of a DVD video, whether the currently played image is an image related to a menu or an image related to a title is written in a status.
Therefore, by acquiring the current status, it can be determined whether or not the currently reproduced image is related to the menu.

Further, the present invention may be applied only when an infinite still image relating to a title is displayed for a certain period of time or more.

In the first embodiment, when an infinite still image has been displayed for a certain period of time or more, an image relating to a menu at a link destination is read. But,
Even if the linked image is not related to a menu, for example, related to a title, it may be read.

When a moving image in a title image is stored in the memory 113, only the first part of the moving image is stored because the memory capacity is limited. At this time, the data stored in the memory 113 is
In order to clarify which part of the moving image is stored, an address at the end of the stored moving image or a time stamp at that time is simultaneously stored.

In the above-described embodiment, when the link destination corresponding to the button is data related to a menu, the data is stored in the memory 113. However, we also analyzed the data on the menu,
You may make it acquire only the data regarding an infinite still image. Note that data on a finite still image may also be obtained.

In the first embodiment described above,
Only data related to the menu corresponding to the button displayed on the currently displayed infinite still image is obtained. However, the link destination of the button existing in the acquired menu data may be further acquired. In this case, the data relating to the stored menu is further analyzed to obtain the link destination. As described above, when the currently displayed infinite still image, which is a still image, has a hierarchical structure, a still image and a moving image up to a desired hierarchy may be acquired. In this case, up to which hierarchical level the menu image is acquired is determined by the memory capacity or the like.

Further, in the above-described embodiment, when acquiring a link destination, still images and moving images up to a desired layer are acquired. However, there is a case where a link destination of a certain hierarchy does not have a still image / moving image and a button execution command indicating a next jump destination is written.

In this case, the final link destination is obtained by continuously analyzing the button execution command until the user actually reaches the layer where the data relating to the still image / moving image is recorded. Is also good.

Further, in the first embodiment, the rotation of the disk is stopped and the emission of the laser beam is stopped. However, only the rotation of the disk may be stopped. Alternatively, only emission of laser light may be stopped.

Further, in the first embodiment, information on the menu image corresponding to the button is stored in the memory 113. However, the menu-related data stored in the memory 113 may be ordered, and the data having the highest rank may be stored in the memory 113.

For example, data relating to each menu is stored in the following order. 1) title menu, 2) root menu, 3) PTT menu, 4) audio menu, 5) sub-picture menu, 6) angle menu. Generally, the title menu and the root menu are the main menu of the disc, and the PTT menu is a menu for selecting a chapter. Since these menu images are often selected based on the empirical rules so far, by ranking the menu images in this way, the memory capacity can be effectively utilized. The order of the menu images is not limited to the illustrated one, but may be any one that can effectively utilize the memory capacity.

Further, in the first embodiment described above, a DVD video is exemplified as a recording medium, but the present invention is not limited to this as long as it has a still image. For example, a recording medium such as a video CD may be used.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an image reproducing apparatus according to the present invention.

FIG. 2 is a flowchart showing an operation of a CPU 111 of the DVD video player 21 which is an embodiment of the image reproducing device according to the present invention.

FIG. 3 is a flowchart showing an operation of a CPU 111 of the DVD video player 21 which is an embodiment of the image reproducing apparatus according to the present invention.

FIG. 4A is a diagram showing a data structure of a DVD video 200.

FIG. 4B is a diagram showing a data structure of PGCI.

FIG. 5 is a diagram showing a data structure of VOBS.

FIG. 6 is a diagram showing a data structure of a memory 113.

FIG. 7 is a diagram showing a hardware configuration of the DVD video player 100.

FIG. 8 is a diagram showing an example of a menu image displayed by the DVD video player 100.

[Explanation of symbols]

 1 Image playback device 3 Reading unit 5 Operation input unit 7 Control unit 9 Temporary storage unit 11 Drive Means 13 ····· Light emitting means 15 ····· Recording medium

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Susumu Takemura 2-1 Nishinmachi, Neyagawa-shi, Osaka F-term (reference) in Onkyo Corporation 5C052 AA01 AA16 AA20 AC02 BB01 BC10 CC10 5C053 FA07 FA24 FA27 HA22 HA40 KA03 KA08 KA24 LA06 5D066 CA07 CA20

Claims (7)

[Claims] A reading unit that reads image information recorded on a recording medium; an operation input unit that receives an operation input of an operator; and an image input unit that reads the image information read by the reading unit in accordance with an operation input from the operation input unit. A control unit for controlling reproduction and outputting an image signal to a display device.The control unit determines whether or not the currently reproduced image is a still image, If so, the still image of the link destination of the still image is acquired in advance by the reading unit and stored in the temporary storage unit. When the link destination is selected by an operation input, the still image stored in advance is read and displayed. Controlling the image reproduction to be performed. 2. The image reproducing apparatus according to claim 1, wherein the control unit is configured to: when the reproduction of the same still image continues for a predetermined time or more,
A method of stopping a driving unit of a reading unit and performing a process of reading and storing a linked still image in advance. 3. The image reproducing apparatus according to claim 1, wherein the control unit is configured to: when reproduction of the same still image continues for a predetermined time or more,
A method of stopping light emission of a light emitting unit of a reading unit, and performing a process of reading and storing a still image of a link destination in advance. 4. The image reproducing apparatus according to claim 2, wherein said still image is an infinite still image. 5. The image reproducing apparatus according to claim 1, wherein the control unit reads in advance still images up to a predetermined plurality of layers when the still images have a hierarchical structure. , A process of storing. 6. The image reproducing apparatus according to claim 1, wherein the control unit also reads and stores a moving image linked to a still image in advance. 7. An image reproducing method for reading image information recorded on a recording medium, controlling reproduction of the image information read from the recording medium in accordance with an operation input by an operator, and displaying an image. It is determined whether or not the image is an operation waiting image. If the image is an operation waiting image, a still image of a link destination of the operation waiting image is acquired in advance by a reading unit and temporarily stored, and the link is input by an operation input. An image reproducing method characterized by reading out and displaying a still image stored in advance when the previous selection is performed.