JP2001052470A - Device and method for navigating key operation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide key operation navigation device and method capable of clearly displaying keys whose operation is valid at the present point of time and giving the instruction of an efficient key operation to a user. SOLUTION: In a reproducing system for reproducing an optical disk 11 for which the key operation by a remote controller 12 is controlled to be valid or invalid corresponding to management information recorded in the optical disk 11, a navigation image 34 for imitating the key arrangement of the remote controller 12 is displayed and the key whose operation is valid is highlighted in the displayed navigation image 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing system for reproducing a recording medium, such as an optical disk such as a DVD, capable of executing various operation functions by an interactive key operation, and more particularly to various reproducing systems. The present invention relates to an improvement in a key operation navigation device and method for guiding a user to a key operation for executing an operation function.

[0002]

2. Description of the Related Art As is well known, in recent years, not only audio data but also video data can be compressed and recorded on an optical disk having a diameter of 12 cm, for example, the same as an audio CD (Compact Disk). I have. As this kind of optical disk, for example, a CD-ROM (Read Only Memory)
Are widely used in a wide range of fields from education to information.

In recent years, an optical disk having the same shape as a CD has a main video data amount corresponding to about two hours of a movie,
A DVD-ROM or the like in which eight types of audio data and 32 types of sub-picture data representing subtitles and the like are recorded has been developed. At present, MPEG (Moving Picture Experts Group) 2 standardized internationally for video data
AC (Audio Comprehension) for audio data
ssion) -3, a DVD standard employing a compression method has also been proposed.

This DVD standard uses MPEG2 as a video compression system according to the MPEG2 system layer, and uses AC-3 and MPE as audio compression systems.
It supports the G format, and further adds sub-picture data obtained by run-length compression of bitmap data for subtitles, and control data (navigation pack) for special playback such as fast forward and fast reverse. ing.

In the DVD standard, sub-picture data such as movie subtitle information and bilingual audio data are packed as SP (Sub Picture) packs and audio packs, respectively. Lingual playback is supported.

[0006]

As described above, the DVD
In the playback system that plays it, the user
It is formatted so that various operation functions can be realized by performing interactive key operations.

By the way, in the case of a DVD, predetermined operation functions, for example, pause,
The so-called UOP (User Option) prohibition, which restricts operation functions such as skip or fast-forward, is made possible by management information recorded on the disc.

However, in the conventional reproducing system,
When the user actually operates the key and the operation function is not executed or a message indicating that the operation function is prohibited is displayed, it is confirmed that the operation function is restricted for the first time. I have come to know
There is a problem that it is very inconvenient for the user.

Therefore, the present invention has been made in view of the above circumstances, and it is possible to clearly display the keys that are currently effective in operation and to give the user an efficient key operation instruction. It is an object of the present invention to provide a very good key operation navigation device and method.

[0010]

A key operation navigation device according to the present invention reproduces a recording medium, and enables or disables a key operation by a remote controller according to management information recorded on the recording medium. It is intended for controlled playback systems. A navigation means for displaying a navigation image imitating the key arrangement of the remote controller and highlighting a key whose operation is valid in the displayed navigation image is provided.

In the key operation navigation method according to the present invention, a navigation image simulating a key arrangement of a remote controller is displayed on the object.
In this displayed navigation image, a key whose operation is valid is highlighted.

According to the above configuration and method, a navigation image imitating the key arrangement of the remote controller is displayed, and the keys for which operation is effective are highlighted in the displayed navigation image. Thus, it is possible to clearly display the keys whose operation is effective at the present time, and to give an instruction of an efficient key operation to the user.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. The playback device for the optical disk 11 shown in FIG. 1 includes a remote controller 12 for receiving a user's operation, a remote controller receiving unit 13 for receiving the operation status of the remote controller 12, and a user's operation on the playback device body side. The key input unit 14 and the operation results of the user and the optical disc 1
1, which notifies the user of the reproduction status and the like, and includes a panel display section 15 provided in the main body of the reproduction apparatus and / or the remote controller 12.

Other external devices include a monitor unit 1
6 and speaker units 17 and 18 are provided. The illustrated speaker units 17 and 18 are of a two-channel stereo. However, in the case of performing multi-channel reproduction, a necessary number of speaker systems and their driving amplifier circuits are separately prepared.

The key input unit 14, panel display unit 15, remote controller 12, and monitor unit 16 constitute a visual user interface. Monitor 16
Is used not only as a playback video monitor for DVD video and audio discs with still images, but also for OSD
(On Screen Display).

The monitor section 16 includes a direct-view CR.
It is not limited to a T (Cathode Ray Tube) display, a liquid crystal display, a plasma display and the like.
A video projector that projects various images including information (a menu screen, a still image of the situation of a recording site, or the like) may be used.

The operation information from the remote controller 12 is transmitted via a remote controller receiving unit 13 to the MP of a system control unit 19 for controlling the operation of the entire reproducing apparatus.
U [Microprocessing Unit or CPU (Central Proc
essing Unit)]. The system control unit 19 also includes a ROM 21 storing a control program executed by the MPU 20 and the like.

The operation information from the key input unit 14 is
20 is notified directly. By the MPU 20, the operation status (various setting states, DVD disk playback information, and the like) of the playback device corresponding to the operation information of the user is appropriately displayed on the panel display unit 15.

The MPU 20 has a RAM (Random Access).
Memory) 22 and a memory I / F (Inter / Face) 23 are connected. The input / output control of the RAM 22 is performed via the memory I / F 23.

The MPU 20 uses the RAM 22 as a work area, and based on various processing programs stored in the ROM 21, a disk drive unit 24, a system processor unit 25, a video decoder unit 26, an audio decoder unit 27, a sub-picture decoder unit 28 and D / A (Digi
(tal / Analogue) The operation of the conversion & reproduction processing unit 29 is controlled.

The disk drive section 24 drives the optical disk 11 set in a disk tray (not shown) of the reproducing apparatus main body, and also drives the optical disk 11 from the optical disk 11 to record data (audio data including audio / music information, etc.). If it is recorded in the video information /
Main video data / video data including still image information, and sub video data including subtitle information / menu information).

The read data undergoes signal processing such as demodulation and error correction in the disk drive unit 24, and is sent to the system processor unit 25 as a data stream in a pack format.

The system processor 25 determines the types of various packets included in the data reproduced from the optical disk 11, and delivers the data in the packets to the corresponding decoders 26, 27 and 28. It has a packet transfer processing unit (not shown).

This packet transfer processing section divides the pack format data string from the disk drive section 24 for each type of pack (navigation pack, video pack, sub-picture pack, audio pack and real-time information pack). Each of the separated packs has transfer time data and an ID (Identifie) indicating the type of data.
r) Data is recorded.

The system processor 25 refers to the transfer time data and the ID data, and converts the video pack, the sub-picture pack and the video pack into a video decoder 26, a sub-picture decoder 28 and an audio decoder 27, respectively. Transfer to The audio pack or the real-time information pack corresponding to the silent cell is sent to the audio decoder unit 27.

The system processor unit 25 stores the control data in the navigation pack in the memory I / F 23
Via the RAM 22. The MPU 20 refers to the transferred control data in the RAM 22 and controls a reproducing operation of each unit of the reproducing apparatus main body.

The video decoder unit 26 controls the MPE in the video pack transferred from the system processor unit 25.
The G-encoded video data is decoded to generate video data before compression.

The sub-picture decoder 28 decodes the run-length compressed sub-picture data in the sub-picture pack transferred from the system processor 25, and generates bitmap sub-picture data before compression. The sub-picture decoder 28 performs a highlight process (in the case of DVD video) on the decoded sub-picture data in addition to the sub-picture decoder for decoding the sub-picture data from the system processor 25. A highlight processing unit (not shown) is provided.

The sub-picture decoder 28 expands pixel data (including emphasized pixels, pattern pixels, background pixels, etc.) in units of predetermined bits (2 bits) that have been run-length compressed in accordance with a predetermined rule. This is to restore a bitmap image.

The above-mentioned highlight processing unit (not shown)
The corresponding highlight processing is performed in accordance with the XY coordinate values, color codes, and highlight color / contrast values indicating the rectangular area in which highlight information (for example, menu selection items) supplied from the MPU 20 is displayed. is there.

In the highlighting process, the user can use the visual user interface on the monitor 16 to specify a specific item (such as the type of audio language to be reproduced or the type of language to be used for reproduced subtitles). An operator that selects an item, or an operator that selects a specific item such as the sampling frequency, the number of quantization bits, or the number of playback channels of the playback sound)
Can be used as a means for easily recognizing.

When the color and contrast of each pixel of the decoded sub-picture data are changed in accordance with the highlight information, the changed sub-picture data is sent to an image combining section (not shown) in the video processor section 30. Supplied. In the image synthesizing unit, the decoded image data and the sub-video data after the highlight processing are synthesized, and the synthesized image is displayed on the monitor unit 16.

The above-mentioned RAM 22 stores a sub-picture menu,
A menu table for storing start addresses of an audio menu, an angle menu, a chapter (program) menu, and the like is included. The highlighting process is used to emphasize specific portions of these menus.

The audio decoder unit 27 decodes audio data in the audio pack transferred from the system processor unit 25 and generates monaural, two-channel stereo or multi-channel stereo audio data. The audio data in the audio pack is compressed and encoded (MPEG, AC-3).
), The decoding process is also executed inside the audio decoder unit 27.

The video data (usually a moving picture signal) decoded by the video decoder 26 and the sub-picture decoder 2
The sub-picture data decoded in step 8 (usually subtitle or menu bitmap data) is transferred to the video processor 30. In the video processor section 30, the video data and the sub-video data are mixed at a predetermined ratio, and the final analog video signal (composite video signal, separate signal S or component signal Y
/ Cr / Cb) and output to the monitor unit 16.

When the video data decoded by the video decoder section 26 is a main part of a movie on a DVD video disk, the sub-video data is usually subtitles in a language selected by the user, and the main part of the movie with subtitles is displayed on a monitor. Performed in part 16.

When the video data decoded by the video decoder section 26 is a menu portion of a movie, the sub-video data is usually characters constituting a menu and user selection operators (highlighted appropriately). In this case, the background (still image or moving image) of the menu is displayed on the monitor unit 16 by the video data, and the operator whose display changes according to the selection operation of the user by the sub-video data is displayed on the background image. They are displayed overlapping.

On the other hand, when the video data decoded by the video decoder unit 26 is a still picture of a DVD audio disc, the sub-video data is, for example, a commentary text in a language selected by the user. Is displayed on the monitor 16.

The video processor section 30 includes an OSD section for generating display data of an on-screen display. Operation information from the remote controller 12 or the like is processed by the MPU 20, and the processing result is
It is sent from U20 to the OSD section of the video processor section 30. The OSD section generates image data corresponding to the processing result from the MPU 20 and sends it to the monitor section 16 in the form of an analog video signal.

In other words, the video processor section 30 includes the video decoder section 26 and the sub-picture decoder section 2.
It can be said that the digital signal output from 8 is converted into an analog signal and multiplexed.

The video processor unit 30 is connected to a frame memory unit 31. The frame memory unit 31 is used for multiplexing the image of the video data and the image of the sub-video data, and is divided into n (for example, four).
Also used for multi-screen display.

When a chapter search or the like is performed, the frame memory section 31 fixes a part of the video from the video decoder section 26 as a still picture, and displays this still picture until the reproduction of the target chapter starts. Can be used when sending to

Furthermore, when the display corresponding to the operation result of the user is performed on the on-screen display, the frame memory unit 31 can be used when multiplexing the OSD display with the video data. it can.

The audio data decoded by the audio decoder unit 27 is converted into a digital to analog (DAC) signal.
(Converter) & output circuit 32. This DAC
The audio data (digital) from the audio decoder unit 27 is converted into a corresponding analog audio signal by the & output circuit 32, and is appropriately amplified.
7 and 18.

The video processor section 30, the frame memory section 31, and the DAC & output circuit 32 constitute a D / A conversion & reproduction processing section 29. The system processor unit 25, video decoder unit 26, audio decoder unit 27, and sub-picture decoder unit 28 each have an STC (System Time Clock) for knowing operation timing.
lock) and a register (not shown) for temporarily storing commands and information from the MPU 20.

The features of the present invention in the reproducing apparatus having the above configuration will be described below. That is, the key input unit 14 or the remote controller 12 is provided with a navigation key (not shown). When this navigation key is operated, the MPU 20 enters the navigation mode.

In the navigation mode, an image simulating the key arrangement of the remote controller 12 is displayed on the screen of the monitor unit 16 by OSD on the screen of the monitor unit 16, and the key portion currently operated is highlighted. Will be done. As a result, the user can clearly recognize the key whose operation is valid at the present time, and can quickly know which operation function can be executed.

Here, the navigation mode includes a button selection mode, a reproduction system mode, an audio / sub-picture selection mode,
The mode is divided into six modes: an angle selection mode, a menu calling mode, and a special reproduction mode. Each time a navigation key is operated, the mode is cyclically switched to seven states obtained by adding the end of the navigation mode to the six modes. .

FIG. 2 is a flowchart illustrating such a mode switching operation. First, when started (Step S11), the MPU 20 executes Step S1.
In step 2, it is determined whether or not the navigation key has been operated. If it is determined that the operation has been performed (YES), it is determined in step S13 whether or not this is the seventh operation. When it is determined that the operation is the seventh operation (YES),
The MPU 20 ends the navigation mode (Step S14).

If it is determined in step S13 that the operation is not the seventh operation (NO), the MPU 20 determines in step S15 whether the operation is the sixth operation. If it is determined that the operation is the sixth operation (YES),
After setting the special reproduction mode in step S16, the MPU 20 returns to the process in step S12 and waits for the operation of the next navigation key.

If it is determined in step S15 that the operation is not the sixth operation (NO), the MPU 20 determines in step S17 whether the operation is the fifth operation. When it is determined that the operation is the fifth operation (YE
S), after setting the menu calling mode in step S18, the MPU 20 returns to the process in step S12 and waits for the operation of the next navigation key.

If it is determined in step S17 that the operation is not the fifth operation (NO), the MPU 20 determines in step S19 whether the operation is the fourth operation. If it is determined that the operation is the fourth operation (YES),
After setting the angle selection mode in step S20, the MPU 20 returns to the process in step S12, and waits for the operation of the next navigation key.

Further, if it is determined in step S19 that the operation is not the fourth operation (NO), the MPU 20 determines in step S21 whether the operation is the third operation. If it is determined that the operation is the third operation (YE
S), after setting the audio / sub-picture selection mode in step S22, the MPU 20 returns to the process in step S12 and waits for the operation of the next navigation key.

If it is determined in step S21 that the operation is not the third operation (NO), the MPU 20 determines in step S23 whether the operation is the second operation. If it is determined that the operation is the second operation (YES),
After setting the reproduction mode in step S24, the MPU 20 returns to the process in step S12 and waits for the operation of the next navigation key.

If it is determined in step S23 that the operation is not the second operation (NO), the MPU 20 determines in step S25 whether or not the operation is the first operation. If it is determined that the operation is the first operation (YE
S), after setting the button selection mode in step S26, the MPU 20 returns to the process in step S12 and waits for the operation of the next navigation key.

Here, the six modes will be described. First, when the button selection mode is set, a navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed on the screen 33 of the monitor 16 as shown in FIG.

In this case, the navigation image 34 is designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this button selection mode, the target keys are an up-movement key 35, a down-movement key 36, a left-movement key 37, a right-movement key 38, an enter (decision) key 39, [1]- 10 keys 40a to [9]
40i. These keys 35 to 39, 40a to 4
The portion of the key which is currently valid for the operation among 0i is highlighted.

In FIG. 3, three buttons 1 are arranged horizontally on the screen 33.
Button 3 is displayed, and an example is shown in which any one of the buttons is selected and determined. In this case, the effective key is
Leftward movement key 37, rightward movement key 38, enter (decision) key 39, 10 keys 40 from [1] to [3]
The portions a to 40c are highlighted.

This is accomplished by selecting buttons 1 to 3 with the leftward movement key 37 and rightward movement key 38 and deciding with the enter (decision) key 39, and the ten keys 40a to 40a.
c means that there is a method of directly inputting and determining the numbers of the buttons 1 to 3. Selected button 1-3 button
Is highlighted on the screen 33.

For example, when the end button 1 is selected, by stopping the highlight of the leftward movement key 37, it is possible to indicate that there is no more option leftward.

Also, when a plurality of buttons are randomly arranged on the screen 33 and it is difficult to visually determine which direction movement keys 35 to 38 should be operated, it is necessary to select the button at this time. The up / down / left / right direction movement keys 35 indicate which direction can be moved from the current button and which direction movement key should be operated to reach the target button.
It can be easily recognized by checking the presence or absence of the highlights of .about.38.

Further, on the screen 33, in addition to the buttons displayed in colors that can be seen by the user, such as the buttons 1 to 3, there are also buttons that are displayed in a transparent color, that is, invisible to the user. is there. This button is designed so that a new image can be viewed by operating the button, for example, according to the provider's intention, and the fact may be described in a disc manual or the like. However, if you do not read the manual, you will never know its existence.

The presence of such a transparent button can be determined by checking the presence / absence of the highlight keys 35-38.
It can be easily recognized. For example, when a transparent button is present below the button 2 in the drawing, in a state where the button 2 is selected, in addition to the left movement key 37 and the right movement key 38, the down movement key 36 is also highlighted. By doing so, the presence of the transparent button can be recognized.

In the button selection mode, the navigation pack N of the management information recorded on the optical disc 11
This can be realized by referring to the highlight general information HL_GI in the highlight information HLI included in the reproduction control information PCI in V_PCK and the button information table BTNIT. The operation of the ten keys 40a to 40i becomes valid when the number NSL_BTN_Ns of the number selection buttons in the highlight general information HL_GI is valid, that is, when the number is other than zero.

Next, when the reproduction system mode is set, FIG.
As shown in FIG. 7, a navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed on the screen 33 of the monitor unit 16 by OSD. The navigation image 34 is also designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this reproduction system mode, the target keys are a reproduction (PLAY) key 41, a stop (STOP) key 42, a skip-up (SKIP UP) key 43,
Skip down (SKIP DOWN) key 44, pause (PAUSE) key 45, forward slow (SLO)
A W) key 46 and a reverse slow (SLOW) key 47;

When the skip (SKIP UP) key 43 and the skip down (SKIP DOWN) key 44 are selectively operated while the playback (PLAY) key 41 is being operated, the forward skip and the forward skip are performed. A backward skip is performed. Then, of these keys 41 to 47, the part of the key whose operation is currently valid is highlighted.

As described above, the conventional reproducing system has a problem that it is impossible to know whether or not the operation function is UOP prohibited unless the user actually operates the key. However, by highlighting the key portion of the navigation image 34 whose operation is valid at the present time, it becomes possible for the user to easily recognize which operation function can be executed.

The playback system mode is a mode in which the video manager information V out of the management information recorded on the optical disc 11 is used.
Title search pointer TT_ for title in MGI
SRP (title unit), video manager information VMG
I The video manager menu program chain information unit table VMGM_PGCI_UT contained in the video manager menu program chain information VMGM_PGCI contained in the program chain general information PGC_GI (in PGC units), the video title set information VTSI contained in the video title set information VTSI Unit table VTSM_PGCI
_UT included in video title set menu program chain information VTSM_PGCI, program chain general information PGC_GI (in PGC units), video title set program chain information table VTS
_PGCIT included in the program chain information PGCI in the program chain general information PGC_GI (P
GC unit), and user operation control information UOP_CTL (flag indicating whether or not the operation is permitted) included in the reproduction control information PCI (VOBU unit) in the navigation pack NV_PCK.

Next, when the audio / sub-picture selection mode is set, a navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed on the screen 33 of the monitor 16 as shown in FIG. Is displayed. The navigation image 34 is also designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this audio / sub-picture selection mode, the target keys are a subtitle (SUBTITLE) key 48,
An audio (AUDIO) key 49. Then, of these keys 48 and 49, the key portion whose operation is currently effective is highlighted.

For example, a subtitle (SUBTITLE) key 4
When the subtitle 8 is highlighted, the user recognizes that there are a plurality of types of subtitle (sub-picture) information that can be switched, and when the subtitle (SUBTITLE) key 48 is not highlighted, the subtitle The user recognizes that (sub-picture) information does not exist, only one kind exists, or a plurality of kinds exist but cannot be switched.

When the audio (AUDIO) key 49 is highlighted, the user recognizes that a plurality of types of audio information exist and can be switched, and the audio (AUDIO) key 49 is highlighted.
If the (UDIO) key 49 is not highlighted,
Whether there is no audio information or only one type exists
The user recognizes that a plurality of types exist but cannot be switched.

In the DVD format, up to eight types of audio information and up to 32 types of sub-picture information can be recorded, and the user can select and reproduce a desired audio or subtitle from among them. The current playback system is inconvenient for the user without operating the voice key or subtitle key, and it is difficult to determine whether the voice or subtitle can be switched. By highlighting the subtitle (SUBTITLE) key 48 and the audio (AUDIO) key 49 in which the operation is currently effective, the user can easily recognize whether or not the switching can be performed.

In the audio / sub-picture selection mode, among the management information recorded on the optical disk 11, the video manager information management table VMGI_MAT and the video title set information VT in the video manager information VMGI.
Video title set information management table VT in SI
SI_MAT (these are attribute information of audio / sub-picture information included in video information, that is, information indicating how many types of audio / sub-picture information are present and what recording data format is used), video manager information VMGI Of the video manager menu program chain information VMGM_PGCI included in the video manager menu program chain information unit table VMGM_PGCI_UT in FIG.
, The video title set menu program chain information VTSM_PGC included in the video title set menu program chain information unit table VTSM_PGCI_UT in the video title set information VTSI.
Program chain general information PGC_GI in I, video title set program chain information table V
Program chain information PGC in TS_PGCIT
Program chain general information PGC_GI included in I
, Refer to the stream validity flag (a flag indicating which of the audio and sub-pictures described in the video title set information management table VTSI_MAT is actually permitted to be reproduced). Can be realized by:

Next, when the mode is set to the angle selection mode, as shown in FIG.
A navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed by OSD. The navigation image 34 is also designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this angle selection mode, the target key is an angle (ANGLE) key 50.
When the angle (ANGLE) key 50 is highlighted, the user recognizes that a plurality of angles exist and can be switched, and the angle (ANGL) key 50 is highlighted.
E) When the key 50 is not highlighted, the user recognizes that there is no angle, only one type exists, or that a plurality of types exist but cannot be switched.

In the DVD format, video information shot at various angles can be recorded, called a multi-angle function, and the user can select and reproduce a desired angle. The current playback system is inconvenient for the user without knowing whether or not the angle can be switched unless the angle key is operated, but it is inconvenient for the user.
By highlighting the 0 part, it becomes possible for the user to easily recognize whether or not the switching can be performed.

This angle selection mode is used for the optical disc 1
1 of the cell playback information table C_PBIT included in the program title information pointer TT_SRP in the video manager information VMGI and the program chain information PGCI in the video title set program chain information table VTS_PGCIT among the management information recorded in the first information. This can be realized by referring to the inside cell block type (a flag indicating whether or not the video information being reproduced is at an angle).

Next, when the menu call mode is set, as shown in FIG.
A navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed by OSD. The navigation image 34 is also designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this menu calling mode, the target keys are a title (TITLE) key 51 and a menu (MENU) key 52. Then, of these keys 51 and 52, the part of the key whose operation is valid at the present time is highlighted, so that the user can recognize which key 51 or 52 is usable.

This menu calling mode is the same as that of the optical disc 1
1, the video manager menu program chain information unit table information VMGM_PG in the video manager information VMGI of the management information recorded in
This can be realized by referring to the menu ID of CI_UTI, video title set menu program chain information unit table information VTSM_PGCI_UTI in video title set information VTSI.

Next, when the special reproduction mode is set, a navigation image 34 simulating the shape and key arrangement of the remote controller 12 is displayed on the screen 33 of the monitor section 16 by OSD as shown in FIG. . The navigation image 34 is also designed to be displayed only in a transparent color or a frame line and to be displayed thinly so as not to obstruct the viewing of the image of the broadcast program displayed on the screen 33, for example.

In this special reproduction mode, the target keys are a random (RANDOM) key 53, a repeat (REPEAT) key 54, and an AB repeat (A-BR) key.
(PT) key 55 and a memory (MEMORY) key 56. Then, of these keys 53 to 56, the part of the key whose operation is valid at the present time is highlighted, so that the user can recognize which operation function can be executed.

In the above description, a navigation image 34 simulating the entire shape and key arrangement of the remote controller 12 is displayed on the screen 33 of the monitor unit 16 in the six modes by OSD. However, the present invention is not limited to this. For example, as shown by a dotted line in FIG. 9, navigation images A to F of only target key portions may be selectively displayed in each mode.

In the above-described button selection mode, the presence of the transparent button is also made known to the user by highlighting the up / down / left / right direction moving keys 35 to 38. For example, the key input unit 14 or the remote controller 12
A key (not shown) is provided for permitting or disallowing the notification of the presence of the transparent button, and when the user sets this key to the permission state, the presence / absence of the transparent button is determined by a key 35 Directed by the highlights of ~ 38,
When the user sets this key to be rejected, the presence of the transparent button may not be indicated by highlighting the up / down / left / right direction keys 35-38.

Further, a pointer key (not shown) is provided in the key input unit 14 or the remote controller 12, and when this pointer key is operated, an OSD is displayed on the screen 33 of the monitor unit 16 as shown in FIG. It is also possible to display the pointer P over the navigation image 34 displayed on the screen and move the pointer P with the up / down / left / right direction moving keys 35 to 38 to select / determine the key.

In this way, the user can operate the remote controller 12 with the up / down / left / right movement keys 35-3.
Only the key 8 and the enter (decision) key 39 are required, and the key operation can be performed without keeping an eye on the screen.

The present invention is not limited to the above-described embodiment, but can be implemented with various modifications without departing from the scope of the invention.

[0091]

As described in detail above, according to the present invention,
It is possible to provide an extremely good key operation navigation device and method capable of clearly displaying a key whose operation is effective at the present time and giving an instruction of an efficient key operation to a user.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a key operation navigation device and method according to the present invention, and is a block diagram showing an optical disk reproducing device.

FIG. 2 is a flowchart shown to explain a navigation mode switching operation in the embodiment.

FIG. 3 is an exemplary view for explaining a button selection mode in the embodiment.

FIG. 4 is an exemplary view for explaining a reproduction mode in the embodiment.

FIG. 5 is an exemplary view for explaining an audio / sub-picture selection mode in the embodiment;

FIG. 6 is an exemplary view for explaining an angle selection mode in the embodiment;

FIG. 7 is an exemplary view for explaining a menu call mode in the embodiment.

FIG. 8 is a view for explaining a special reproduction mode in the embodiment.

FIG. 9 is a view for explaining a modification of the embodiment.

FIG. 10 is a view for explaining another modification example of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Optical disk, 12 ... Remote controller, 13 ... Remote controller receiving part, 14 ... Key input part, 15 ... Panel display part, 16 ... Monitor part, 17, 18 ... Speaker part, 19 ... System control part, 20 ... MPU, 21: ROM, 22: RAM, 23: memory I / F, 24: disk drive unit, 25: system processor unit, 26: video decoder unit, 27: audio decoder unit, 28: sub-picture decoder unit, 29: D / A conversion & playback processing unit, 30: video processor unit, 31: frame memory unit, 32: DAC & output circuit, 33: screen, 34: navigation image, 35: upward moving key, 36: downward moving key, 37 ... Left movement key, 38 Right movement key, 39 Enter key, 40a-40i 1 0 key, 41 ... Play (PLAY) key, 42 ... Stop (STOP) key, 43 ... Skip up (SKIP UP) key, 44 ... Skip down (SKIP DOWN) key, 45 ... Pause (PAUSE) key, 46 ... Forward slow (SLOW) key, 47 ... reverse slow (SLOW) key, 48 ... subtitle (SUBTITLE) key, 49 ... audio (AUDIO) key, 50 ... angle (ANGLE) key, 51 ... title (TITLE) key, 52: MENU key, 53: RANDOM key, 54: REPEAT key, 55: AB repeat (AB RPT) key, 56: MEMORY key.

Claims (5)

[Claims] 1. A reproducing system for reproducing a recording medium, wherein a key operation of a remote controller is controlled to be enabled or disabled according to management information recorded on the recording medium. A key operation navigation device comprising: a navigation unit that displays a simulated navigation image and highlights a key whose operation is valid in the displayed navigation image. 2. A button selection mode for highlighting an effective key from among keys required to select and determine a key displayed as an image based on information recorded on the recording medium. A reproduction system mode for highlighting a key whose operation is effective from among keys required for a reproduction operation of the recording medium, and a key required for selecting and determining the type of audio or sub-picture recorded on the recording medium. And an audio / sub-video selection mode for highlighting a key for which an operation is valid, and a key for which an operation is valid among keys required for selecting and determining the type of an angle recorded on the recording medium. An angle selection mode for writing, and a key whose operation is valid among keys required for displaying a menu or a title of information recorded on the recording medium. A menu call mode for highlighting, and a special playback mode for highlighting a key whose operation is valid among the keys required for the special playback operation of the recording medium, and each mode is selectively switched. The key operation navigation device according to claim 1. 3. The key operation navigation device according to claim 2, wherein each mode of said navigation means is cyclically switched every time a navigation key is operated. 4. The key operation navigation device according to claim 2, wherein the navigation means displays a navigation image simulating the arrangement of only a target key in each mode each time the mode is switched. 5. A reproducing system for reproducing a recording medium, wherein a key operation by a remote controller is controlled to be enabled or disabled according to management information recorded on the recording medium. A key operation navigation method comprising displaying a simulated navigation image and highlighting a key whose operation is effective in the displayed navigation image.