JP3917579B2 - Electronic device and highlight display control method - Google Patents

Description

  The present invention relates to an electronic apparatus using highlight information defined in the DVD standard, and a display control method for the highlight information.

In recent years, DVD (Digital Versatile Disk) which is a large-capacity storage medium has been actively developed. In addition to audio information and video information, sub-video information can be stored on a DVD. There is a button as a content displayed on the screen based on the sub-picture information. The button is a rectangular area on the screen that can be selected by the user. In general, a button is defined by a combination of video, sub-picture and highlight information. The description of the highlight information is shown in the following patent document (see Patent Document 1).
JP-A-9-282848 (Page 10, FIGS. 6 to 8)

  Usually, a plurality of highlight information is stored on the disc. A highlight based on one highlight information among a plurality of highlight information is displayed on the screen. However, the following problems have been associated with highlights displayed on the screen.

  The highlight end time currently displayed on the screen is equal to the next highlight start time displayed on the screen, or the next highlight start time displayed on the screen is better. If the content of early is stored on the disc, the device that plays this disc will start control of the next highlight displayed on the screen after the highlight control currently displayed on the screen ends. As a result of the transition, there is a problem in that the highlight that is currently being displayed on the screen is terminated, and at the same time, the next highlight that is displayed on the screen is not started, causing a delay.

  Therefore, the present invention has been made in view of the problems related to highlight display control including the above-described problems, and an object thereof is to provide an electronic device that appropriately performs highlight display control.

  In order to achieve the above object, in the invention according to claim 1, the first highlight information and the second highlight display start having the first highlight display start time and the first highlight display end time. Reading means for reading the first highlight information and the second highlight information from the storage medium storing the second highlight information having the time and the second highlight display end time, and read by the reading means A holding means for holding the first highlight information and the second highlight information, and a time before the first highlight display end time based on the second highlight information held by the holding means. And setting means for setting the second highlight information, and the second highlight information at the second highlight display start time based on the second highlight information set by the setting means. Characterized by comprising a display start means for starting the site display.

  In the invention according to claim 2, the first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, and the second highlight display. The first highlight information and the first highlight information from the storage medium storing the second highlight information having a light display end time and a value meaning that there is no button number selected at the second highlight display start time. Reading means for reading the second highlight information, holding means for holding the first highlight information and the second highlight information read by the reading means, and second highlight information held by the holding means. Accordingly, setting means for setting the second highlight information at a time before the first highlight display end time, and the second highlight set by the setting means. Based on the information, the display highlighting means for starting the second highlight display at the second highlight display start time, and the first highlight is made at a time before the first highlight display end time. Setting means for setting the changed button number value as the value of the number of the button to be subjected to the second highlight based on the second highlight information. It is characterized by comprising.

  In the invention according to claim 5, the highlight information having the highlight display start time, the highlight display end time, and the button selection end time having the same value as the highlight display end time is stored in the storage medium. Read means for reading the write information, and change means for changing the value of the highlight display end time to a value meaning that there is no end time based on the highlight information read by the read means. Features.

  In the invention according to claim 9, the first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, and the second highlight display. A step of reading the first highlight information and the second highlight information from the storage medium storing the second highlight information having the light display end time, and the read first highlight information and second A step of holding the highlight information, a step of setting the second highlight information at a time before the first highlight display end time based on the held second highlight information, And a step of starting the second highlight display at the second highlight display start time based on the set second highlight information.

  In the invention according to claim 10, the first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, and the second highlight display. The first highlight information and the first highlight information from the storage medium storing the second highlight information having a light display end time and a value meaning that there is no button number selected at the second highlight display start time. The second highlight information, the step of holding the read first highlight information and the second highlight information, and the first highlight based on the held second highlight information. The step of setting the second highlight information at a time before the display end time, and the second highlight information at the second highlight display start time based on the set second highlight information. If the value of the number of the button on which the first highlight is made is changed at the time before starting the first highlight display and the time before the first highlight display end time, the value of the changed button number Is set to the value of the number of the button on which the second highlight is made based on the second highlight information.

  According to a thirteenth aspect of the present invention, the highlight information having the highlight display start time, the highlight display end time, and the button selection end time that is the same value as the highlight display end time is stored in the storage medium. A step of reading the write information, and a step of changing the value of the highlight display end time to a value meaning that there is no end time based on the read highlight information.

  According to the present invention, it is possible to appropriately perform highlight display.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a disc recording / reproducing apparatus according to the first embodiment of the present invention.

  The disc recording / reproducing apparatus 1 includes an AV unit 1a, a system control unit 1b, and an input / output unit 1c. Furthermore, the AV unit 1a includes a disk drive 3, a stream buffer area 4, a stream decoder 5, a video decoder 6, a display control unit 7, a sub-picture decoder 8, a display device 9, an audio decoder 10, a DAC 11, and a speaker 12. .

  An optical disk 2 that is a storage medium is set in a disk drive 3. The disk drive 3 rotates the optical disk 2 and performs data read / write / erase operations on the optical disk 2.

  Data read by the disk drive 3 is stored in the stream buffer area 4. The stream data buffered in the stream buffer area 4 is output to the stream decoder 5.

  The stream decoder 5 divides the stream data into three types of packs: a video pack composed of video data, a sub-picture pack composed of sub-picture data, and an audio pack composed of audio data. The video pack is transferred to the video decoder 6, the sub-picture pack is transferred to the sub-picture decoder 8, and the audio pack is transferred to the audio decoder 10 by referring to the transfer time and the ID indicating the data type.

  The video decoder 6 decodes the video data transferred from the stream decoder 5 and transfers the data generated by the decoding process to the display control unit 7. The sub video decoder 8 decodes the sub video data transferred from the stream decoder 5 and transfers the data generated by the decoding process to the display control unit 7. Further, the sub-picture decoder 8 has a function of setting a plurality of highlights in advance.

  The display control unit 7 converts the digital signals output from the video decoder 6 and the sub-picture decoder 8 into analog signals and performs multiplexing. The display device 9 belongs to the input / output unit 1 c and generates an analog signal output from the display control device 7.

  The audio decoder 10 decodes the audio data transferred from the stream decoder 5 and transfers the data generated by the decoding process to the digital-analog converter (DAC) 11.

  The DAC 11 converts the digital signal output from the audio decoder 10 into an analog signal. The speaker 12 belongs to the input / output unit 1c and reproduces an analog signal output from the DAC 11.

  The system control unit 1 b includes a navigation manager 13, a presentation engine 14, and a buffer area 15.

  The navigation manager 13 reads navigation data (DSI, PCI, etc. described later) stored in the stream buffer area 3. This navigation data is data that defines conditions for determining the playback method of the player. In addition to the conditions for determining the player playback method defined in the navigation data, the player playback method can be determined by user operation. When the navigation manager 13 reads the navigation data, the navigation manager 13 sets a method for the presentation engine 14 described later to decode and reproduce the presentation data.

  The presentation engine 14 controls the disk drive 3, the stream buffer area 4, the stream decoder 5, the video decoder 6, the sub-picture decoder 8, the display control unit 7, and the audio decoder 9. The presentation engine 14 reproduces the presentation data stored on the optical disc 1 in accordance with a reproduction instruction issued from the navigation manager 13. Further, the presentation engine 14 controls the sub-picture decoder 8 based on highlight information (described in detail later) provided from the navigation manager 13, and also performs highlight time control, highlight display state management, and interruption. Make a notification. Highlight information provided from the navigation manager 13 can be stored in a buffer area 15 connected to the presentation engine 14.

  The input / output unit 1 c includes a display device 9, a speaker 12, a key input unit 16, and a panel display unit 17.

  The key input unit 16 is used when the user issues a predetermined instruction to the disc recording / reproducing apparatus 1. The panel display unit 17 displays various information when the optical disc 1 is reproduced, for example.

  FIG. 2 is a diagram showing a pack structure of data stored on the optical disc.

  Hereinafter, a hierarchical structure of information included in the video object set VOBS (Video Object Set) 100 will be described. Each CELL 102 includes one or more video object units (VOBU) 103. Each VOBU is composed of a collection of a video pack (V_PCK), a sub-picture pack (SP_PCK), and an audio pack (A_PCK) with the navigation pack (NV_PCK) 104 as the head. These packs are a minimum unit when performing data transfer processing. The minimum unit for performing logical processing is a cell unit.

  An identification number is assigned to the VOB, and the VOB can be specified by this identification number. A normal video stream is composed of a plurality of cells, but a menu video stream may be composed of one cell. Each cell is given an identification number as in the case of VOB.

  The navigation pack 104 includes a pack header, a reproduction control information / presentation information (PCI) packet 105, and a data search information (DSI) packet. The PCI packet is composed of a packet header and PCI data, and the DSI packet is composed of a packet header and DSI data.

  The PCI packet 105 includes a packet header, a substream ID, and PCI data 106. The PCI data 106 is navigation data for changing display contents or reproduction contents (presentation contents) in synchronization with the reproduction state of video data in the VOBU.

  FIG. 3 is a diagram showing the contents of PCI data.

  The PCI data 106 includes general PCI information (PCI_GI), non-seamless playback angle information (NSML_AGLI), highlight information (HLI) 107, and recording information (RECI). The highlight information 107 includes highlight general information (HL_GI) 108, a button / color information table (BTN_COLOR) 109, and a button information table (BTTNIT) 110.

  FIG. 4 is a diagram showing the contents of highlight general information.

  The highlight general information 108 is information related to highlight information as a whole. The HLI_SS 201 describes the state of the HLI. In HLI_S_PTM 202, a highlight start time at which the HLI 107 becomes valid is written. The HLI_E_PTM 203 describes the highlight end time when the HLI becomes invalid. BTN_SL_E_PTM 204 describes the end time of the button selection valid period in the HLI (hereinafter referred to as button selection end time). In the FOSL_BTNN 205, a button number that is forcibly selected at the time indicated by the HLI_S_PTM 202 is recorded. If there is no forcedly selected button number, zero is recorded in FOSL_BTNN 205.

  In FOAC_BTNN 206, a button number forcibly selected at the time indicated by BTN_SL_E_PTM 204 is recorded. If there is no button number forcibly selected, zero is recorded in BTN_SL_E_PTM 204. When the button number selected at the time indicated by the BTN_SL_E_PTM 204 is forcibly determined, 63 is recorded in the BTN_SL_E_PTM 204.

  FIG. 5 shows the contents of the button / color information table.

  The button / color information table 109 includes three button / color information (BTN_COLI), that is, BTN_COLI # 1, BTN_COLI # 2, and BTN_COLI # 3. Button color numbers (BTN_COLN) # 1 to # 3 are assigned in the description order of BTN_COLI.

  BTN_COLI is composed of selected color information (SL_COLI) 311 and determined color information (AC_COLI) 312. SL_COLI 311 describes the color and contrast displayed when the button is selected. In the selected state, the user can move the button from the highlighted button to another button. AC_COL 312 describes the color and contrast displayed when the button is in the determined state. In the decision state, the user cannot move the button from the highlighted button to another button.

  FIG. 6 shows the contents of the button information table.

  The BTNIT 110 is composed of 36 pieces of button information (BTNI). The BTNIT 110 can be used as a 1 group mode consisting of 36 BTNI, a 2 group mode consisting of 18 BTNI, or a 3 group mode consisting of 12 BTNI. The button number (BTNN) is assigned from 1 for each button group in the description order of BTNI.

  The BTNI 401 includes button position information (BTN_POSI) 411, adjacent button position information (AJBTN_POSI) 412, and a button command (BTN_CMD) 413. BTN_POSI 411 describes button color information used for buttons, a display rectangular area, and a button determination mode. AJBTN_POSI 412 describes the button numbers of the buttons arranged vertically and horizontally. BTN_CMD 413 describes a command to be executed when a button is determined.

  FIG. 7 is a flowchart showing an embodiment of control by the navigation manager according to the present invention.

  When the NV_PCK 104 is accumulated in the stream buffer area 4 (Yes in step S101), the navigation manager 13 reads the NV_PCK 104 accumulated in the stream buffer area 4 (step S102). The HLI 107 in the read NV_PCK 104 is analyzed (step S103). After analyzing the HLI 107, desired highlight information (color, position, time, etc.) is set in the presentation engine 14 (step S104). After highlight information is set in the presentation engine 14, the navigation manager 13 waits for three types of interrupts notified from the presentation engine 14. Next, three types of interrupt notification will be described with reference to FIGS.

  FIG. 8 is a flowchart for explaining the first interrupt notification. The first interrupt notification is an interrupt notification generated at the end of the button determination process performed by the user operating the key input unit 16, for example. When the first interrupt notification is generated (step S105 Yes), the navigation manager 13 executes BTN_CMD 413 and the like performed after the button is determined (step S106).

  FIG. 9 is a flowchart for explaining the second interrupt notification. The second interrupt notification is an interrupt notification indicating that the end time BTN_SL_E_PTM of the button selection valid period is reached. When the second interrupt notification is generated (step S107 Yes), the navigation manager 13 executes BTN_CMD 413 and the like performed after the button is determined (step S108).

  FIG. 10 is a flowchart for explaining the third interrupt notification. The third interrupt notification is an interrupt notification indicating that the highlight end time HLI_E_PTM is reached. When the third interrupt notification is generated (step S109 Yes), the navigation manager 13 recognizes that the currently controlled highlight has ended in the presentation engine 14, and controls the next displayed highlight. Processing is performed (step S110).

  After the navigation manager 13 sets the desired highlight information in the presentation engine 14, a new button determination process (button reset) is performed based on, for example, an operation of the key input unit 16 by the user (step S111 Yes). The navigation manager 13 resets the highlight information for the presentation engine 14 (step S112). Next, the control performed by the presentation engine 14 will be described.

  FIG. 11 is a flowchart showing an embodiment of control by the presentation engine according to the present invention.

  The presentation engine 14 waits for the highlight information to be set by the navigation manager 13. When highlight information is set by the navigation manager 13 (step S201 Yes), the presentation engine 14 sets the highlight information in the sub-picture decoder 8 (step S202). The presentation engine 14 sets highlight information in the sub-picture decoder 8, and then performs time management of the highlight (step S203). The presentation engine 14 notifies the navigation manager 13 of three types of interrupts. Next, three types of interrupts notified to the navigation manager 13 will be described with reference to FIGS.

  FIG. 12 is a flowchart for explaining a first interrupt notified to the navigation manager. The first interrupt notification is when the highlight information is set by the navigation manager 13 (step S112 in FIG. 12) (Yes in step S204), and the corresponding button is highlighted in the determined color based on the highlight information. This notification is given to the navigation manager 13 (step S205).

  FIG. 13 is a flowchart for explaining the second interrupt notified to the navigation manager. In the second interrupt notification, the presentation engine 14 performs time management of highlight information to determine whether or not the button selection valid period end time BTN_SL_E_PTM is reached, and determines that the end time is BTN_SL_E_PTM. In this case (step S206 Yes), the notification is made to the navigation manager 13 (step S207).

  FIG. 14 is a flowchart for explaining a third interrupt notified to the navigation manager. The third interrupt notification is performed by the presentation engine 14 performing time management of highlight information to determine whether or not the highlight end time is HLI_E_PTM, and when it is determined that the end time is HLI_E_PTM (step The notification is made to the navigation manager 13 (Yes in S208) (step S209). Next, setting of a plurality of highlight information by the navigation manager 13 will be described.

  FIG. 15 is a diagram showing timing when the navigation manager sets a plurality of highlight information in the presentation engine.

  As shown in FIG. 15, the display end time of the first highlight displayed in advance and the display start time of the second highlight displayed after displaying the first highlight are the same time (t4). A case will be described in comparison with a conventional example.

  First highlight information is set in the presentation engine 14 at time t1. The first highlight information includes information at time t2 as the first HLI_S_PTM and information at time t4 as the first HLI_E_PTM. The second highlight information includes information at time t4 as the second HLI_S_PTM and information at time t6 as the second HLI_E_PTM.

  In the present invention, the navigation manager 13 sets the first highlight information in the presentation engine 14, and sets the second highlight information at a time before the time t4 when the first highlight ends. The second highlight information is stored in a buffer area 15 that can be read from the presentation engine 14, for example. Therefore, conventionally, the display of the first highlight can be terminated and the second highlight information can be set at the subsequent time (t5 in FIG. 15). A readable buffer area 15 is provided, and the second highlight information is stored in the buffer area 15 before time t4. Next, a timing at which a plurality of highlights are displayed using a plurality of set highlight information will be described.

  FIG. 16 is a diagram showing the timing at which highlight display starts and ends using a plurality of highlight information set in the presentation engine 14.

  Conventionally, since it was possible to set the second highlight information at the time after the display of the first highlight (t5 in FIG. 15), the end time of the display of the first highlight and the The display start time of the highlight of No. 2 did not match, and after the display of the first highlight was finished, there was a non-display time period until the display of the second highlight was started. However, as described with reference to FIG. 15, by providing the buffer area 15 that can be read from the presentation engine 14, at a time (t <b> 3 in FIG. 15) before the time when the first highlight display ends. By setting the second highlight information, after the display of the first highlight is terminated at time t4, the second highlight is displayed at time t4 without causing a non-display time period. It is possible to start. Next, regarding the setting of a plurality of highlight information by the navigation manager 13, a case where the FOSL_BTNN of the highlight displayed next to the currently displayed highlight is 0 will be described.

  FIG. 17 shows the timing when the navigation manager 13 sets a plurality of highlight information in the presentation engine 14 and the like, and shows the display contents of the button when the button number is not changed before the second highlight is displayed. FIG.

  First highlight information is set in the presentation engine 14 at time t1. The first highlight information includes information at time t2 as the first HLI_S_PTM and information at time t4 as the first HLI_E_PTM. Further, the second highlight information includes information of time t4 as the second HLI_S_PTM, time t5 as the second HLI_E_PTM, and zero as the FOSL_BTNN.

  In the present invention, as described with reference to FIGS. 15 and 16, the navigation manager 13 sets the first highlight information in the presentation engine 14 at the time t1, and from the time t4 when the first highlight ends. The second highlight information is set at the previous time t3 (see the setting timing in FIG. 17). The second highlight information is stored in a buffer area 15 that can be read from the presentation engine 14, for example. Therefore, after displaying the first highlight at time t4, it is possible to start displaying the second highlight at time t4 without causing a non-display time zone (FIG. 17). See display timing).

  Since the second highlight information is set to zero as FOSL_BTNN, the button number is not forcibly selected when the second highlight display is started. Therefore, when the second highlight information is set in the presentation engine 14 by the navigation manager 13, a button number (button n) similar to the button number (button n) set in the first highlight display is set. To do.

  If the setting of the button number is not changed by, for example, the user's operation by the time t4 when the second highlight display is started, the buttons set in the first highlight display after the time t4 Button numbers similar to the numbers are used (see the display content of FIG. 17). Next, a case where the first button number is changed before the second highlight is displayed will be described.

  FIG. 18 shows the timing when the navigation manager 13 sets a plurality of highlight information in the presentation engine 14 and the like, and shows the display contents of the button when the button number is changed before the second highlight is displayed. FIG.

  If the button number setting is changed from the button n to the button N by the user's operation, for example, at the time t6 by the time t4 when the second highlight display is started, the navigation manager 13 The button number set in the highlight display is changed from the button n to the button N (see the setting timing in FIG. 18). Since the button number set in the first highlight display is changed from the button n to the button N by the time t4 when the second highlight display is started, the second highlight is performed after the time t4. Is displayed, the button number N changed in the first highlight display is displayed (see the display timing in FIG. 18).

  In the case where the button number set in the second highlight display is not changed from the button n to the button N as the button number is changed from the button n to the button N by the operation of the user or the like, the first number is changed. After the highlight display is finished, there is a problem that the button n set in the second highlight display is displayed, and then the button N whose setting has been changed is displayed. However, when the button number is changed from the button n to the button N by the operation of the user or the like, the button number set for the second highlight display is changed from the button n to the button N, whereby the first When the display of the highlight button N is finished and the display of the second highlight is started, the button N can be displayed without displaying the button n.

  FIG. 19 is a first diagram illustrating highlight information setting timing and display contents when the value of the button selection end time is not 0xFFFFFFFF and is the same time as the highlight display end time.

  In the DVD standard, when there is a Jump or Link command in a button command, branching is performed along with the button command execution, and a video stream is displayed. Here, a processing procedure until the branch destination video stream is displayed will be described. In response to the user's selection operation, the button transitions to the selected state and the selected color is displayed. Next, in response to the user's determination operation, the button shifts to the determination state. The decision color is displayed and the button command is executed. The decision color is displayed until the branch destination video stream is displayed, and then the branch destination video stream is displayed.

  When the value of the button selection end time is not 0xFFFFFFFF (0xFFFFFFFF indicates that there is no end time) and is the same time as the highlight display end time, for example, responding to the user's decision operation at the button selection end time When the button shifts to the determination state, the button selection end time and the highlight display end time are the same time, so the determined color displayed is not displayed until the video stream is displayed. Alternatively, even if the determined color is displayed, the state is displayed for a moment.

  In order to solve the problem that the determined color described above is not displayed, the presentation engine 14 of the disc recording / reproducing apparatus according to the present invention changes the highlight end time to 0xFFFFFFFF (no end time), and the sub-picture decoder 8 Set the highlight.

  Since the presentation engine 14 changes the highlight end time to 0xFFFFFFFF, the button selection end time does not match the highlight end time, so the button shifts to the determined state at the button selection end time and the video stream is displayed. In the meantime, the determined color can be displayed.

  FIG. 20 is a second diagram illustrating highlight information setting timing and display contents when the value of the button selection end time is not 0xFFFFFFFF and is the same time as the highlight display end time.

  In the DVD standard, when there is no Jump or Link command in the button command, the branch associated with the button command execution is not performed, and the determined color is displayed until the end of the valid period of the subpicture (highlight display end time).

  As described in FIG. 19, when the button selection end time value is not 0xFFFFFFFF and is the same time as the highlight display end time, the button command is executed by responding to the user's determination operation at the button selection end time, for example. Then, since the button selection end time and the highlight display end time are the same time, the determination color is not displayed. Alternatively, even if the determined color is displayed, the state is displayed for a moment.

  In order to solve the problem that the determined color is not displayed as described above, the presentation engine 14 of the disc recording / reproducing apparatus according to the present invention changes the highlight end time to 0xFFFFFFFF, and sets the highlight setting to the sub-picture decoder 8. Do. Further, the presentation engine 14 sets the sub-picture decoder 8 to finish displaying the determined color at the button selection end time.

  By setting so that the display of the determined color is ended at the button selection end time, it is possible to end the display of the determined color displayed in response to the button command being executed at the button selection end time.

  FIG. 21 is a diagram showing a configuration of a disc recording / reproducing apparatus according to the second embodiment of the present invention.

  A configuration different from the configuration of the disc recording / reproducing apparatus 1 according to the first embodiment described with reference to FIG. 1 will be described. In the disc recording / reproducing apparatus 1 according to the first embodiment, the navigation manager 13 reads the navigation data stored in the stream buffer area 3. However, in the disc recording / reproducing apparatus 1A according to the second embodiment, the presentation engine is used. 14A reads the navigation data stored in the stream buffer area 3A.

  In the disc recording / reproducing apparatus 1 according to the first embodiment described with reference to FIG. 1, the navigation manager 13 sends navigation data to the presentation engine 14, so that the presentation engine 14 starts the highlight display start time. Get highlight information. On the other hand, in the disc recording / reproducing apparatus 1A according to the second embodiment, the presentation engine 14A reads navigation data from the stream buffer 3A. Accordingly, the presentation engine 14A does not need to obtain highlight information such as the highlight display start time from the navigation manager 13A, and performs the control based on the highlight information as described above to the extent that button number data is obtained. It becomes possible.

  The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

The figure which shows the structure of the disc recording / reproducing apparatus concerning one Embodiment of this invention. The figure which shows the pack structure of the data memorize | stored in the optical disk. The figure which showed the content of PCI data. The figure which showed the content of highlight general information. The figure which showed the content of the button color information table. The figure which showed the content of the button information table. The flowchart which shows one Example of the control by the navigation manager concerning this invention. The flowchart explaining the 1st interruption notification. The flowchart explaining the 2nd interruption notification. The flowchart explaining a 3rd interruption notification. The flowchart which shows one Example of control by the presentation engine which concerns on this invention. The flowchart explaining the 1st interruption notified to a navigation manager. The flowchart explaining the 2nd interruption notified to a navigation manager. The flowchart explaining the 3rd interruption notified to a navigation manager. The figure which shows the timing which a navigation manager sets several highlight information to a presentation engine. The figure which shows the timing at which the display start and completion | finish of a highlight are performed using the some highlight information set to a presentation engine. The figure which shows the display content of the button when a navigation manager shows the timing etc. which set several highlight information to a presentation engine, etc., and does not change a button number before a 2nd highlight is displayed. The figure which shows the display content of the button in case a navigation manager changes a button number before the 2nd highlight is displayed while showing the timing etc. which set several highlight information to a presentation engine. The 1st figure which shows the highlight information setting timing and display content in case the value of button selection end time is not 0xFFFFFFFF, and is also the same time as highlight display end time. The 2nd figure which shows the highlight information setting timing and display content in case the value of button selection end time is not 0xFFFFFFFF, and is also the same time as highlight display end time. The figure which shows the structure of the disc recording / reproducing apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disc recording / reproducing apparatus, 1a ... AV part, 1b ... System control part,
1c ... input / output unit, 2 ... optical disc, 3 ... disc drive,
4 ... stream buffer area, 5 ... stream decoder,
6 ... Video decoder, 7 ... Display control unit, 8 ... Sub-picture decoder,
9 ... display device, 10 ... audio decoder, 11 ... DAC, 12 ... speaker,
13 ... Navigation Manager, 14 ... Presentation Engine,
15 ... buffer area, 16 ... key input section, 17 ... panel display section,

Claims (18)

First highlight information having a first highlight display start time and a first highlight display end time, and a second highlight information having a second highlight display start time and a second highlight display end time. Reading means for reading the first highlight information and the second highlight information from a storage medium in which highlight information is stored;
Holding means for holding the first highlight information and the second highlight information read by the reading means;
Setting means for setting the second highlight information at a time prior to the first highlight display end time based on the second highlight information held by the holding means;
Display start means for starting the second highlight display at the second highlight display start time based on the second highlight information set by the setting means;
An electronic apparatus comprising: The first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, the second highlight display end time, and the second highlight display. The first highlight information and the second highlight information are read from a storage medium storing second highlight information having a value indicating that there is no button number selected at the light display start time. Reading means;
Holding means for holding the first highlight information and the second highlight information read by the reading means;
Setting means for setting the second highlight information at a time prior to the first highlight display end time based on the second highlight information held by the holding means;
Display start means for starting the second highlight display at the second highlight display start time based on the second highlight information set by the setting means;
If the value of the button number to which the first highlight is made is changed at a time before the first highlight display end time, the changed button number value is changed to the second highlight value. Setting means for setting as the value of the number of the button on which the second highlight is made based on the light information;
An electronic apparatus comprising: A navigation manager for reading the first highlight information and the second highlight information read by the reading means;
The holding means is
3. The electronic apparatus according to claim 1, further comprising means for holding the first highlight information and the second highlight information read by the navigation manager. A presentation engine for reading the first highlight information and the second highlight information read by the reading means;
The holding means is
3. The electronic apparatus according to claim 1, further comprising means for holding the first highlight information and the second highlight information read by the presentation engine. Reading means for reading the highlight information from a storage medium storing highlight information having highlight display start time, highlight display end time, and button selection end time that is the same value as the highlight display end time;
Based on the highlight information read by the reading means, changing means for changing the value of the highlight display end time to a value meaning that there is no end time;
An electronic apparatus comprising: When the button command is a button command that does not have a Jump or Link command,
When the button command is executed at a time prior to the highlight display end time included in the highlight information read by the reading means, a display of a determined color displayed by executing the button command Display ending means for ending at the highlight display end time;
The electronic apparatus according to claim 5, further comprising: A navigation manager for reading the highlight information read by the reading means;
The holding means is
6. The electronic apparatus according to claim 5, further comprising means for holding the highlight information read by the navigation manager. A presentation engine for reading the highlight information read by the reading means;
The holding means is
6. The electronic apparatus according to claim 5, further comprising means for holding the highlight information read by the presentation engine. First highlight information having a first highlight display start time and a first highlight display end time, and a second highlight information having a second highlight display start time and a second highlight display end time. Reading the first highlight information and the second highlight information from a storage medium in which highlight information is stored;
Holding the read first highlight information and second highlight information;
Setting the second highlight information at a time prior to the first highlight display end time based on the held second highlight information;
Starting the second highlight display at the second highlight display start time based on the set second highlight information;
A highlight display control method comprising: The first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, the second highlight display end time, and the second highlight display. The first highlight information and the second highlight information are read from a storage medium storing second highlight information having a value indicating that there is no button number selected at the light display start time. Steps,
Holding the read first highlight information and second highlight information;
Setting the second highlight information at a time prior to the first highlight display end time based on the held second highlight information;
Starting the second highlight display at the second highlight display start time based on the set second highlight information;
If the value of the button number to which the first highlight is made is changed at a time before the first highlight display end time, the changed button number value is changed to the second highlight value. A highlight display control method comprising a step of setting a value of a button number to be second highlighted based on light information. The step of reading includes
A navigation manager reading the read first highlight information and the second highlight information;
The holding step includes
11. The highlight display control method according to claim 9, further comprising a step of holding the first highlight information and the second highlight information read by the navigation manager. The step of reading includes
A presentation engine reading the read first highlight information and the second highlight information;
The holding step includes
11. The highlight display control method according to claim 9, further comprising a step of holding the first highlight information and the second highlight information read by the presentation engine. A step of reading the highlight information from a storage medium storing highlight information having a highlight display start time, a highlight display end time, and a button selection end time that is the same value as the highlight display end time;
Changing the value of the highlight display end time to a value meaning that there is no end time based on the read highlight information;
A highlight display control method comprising: When the button command is a button command that does not have a Jump or Link command,
When the button command is executed at a time before the highlight display end time included in the read highlight information, the display of the determined color displayed by the button command is executed. A display end step to end at the light display end time;
The highlight display control method according to claim 13, further comprising: The step of reading includes
A navigation manager reading the read highlight information;
The holding step includes
14. The highlight display control method according to claim 13, further comprising a step of holding the highlight information read by the navigation manager. The step of reading includes
A presentation engine reading the read highlight information;
The holding step includes
14. The highlight display control method according to claim 13, further comprising a step of holding the highlight information read by the presentation engine. First highlight information having a first highlight display start time and a first highlight display end time, and a second highlight information having a second highlight display start time and a second highlight display end time. Reading means for reading the first highlight information and the second highlight information from a storage medium in which highlight information is stored;
Holding means for holding the first highlight information and the second highlight information read by the reading means;
Setting means for setting the second highlight information in the sub-picture decoder at a time prior to the first highlight display end time based on the second highlight information held by the holding means. When,
Display start means for starting the second highlight display at the second highlight display start time based on the second highlight information set in the sub-picture decoder by the setting means;
An electronic apparatus comprising: The first highlight information having the first highlight display start time and the first highlight display end time, the second highlight display start time, the second highlight display end time, and the second highlight display. The first highlight information and the second highlight information are read from a storage medium storing second highlight information having a value indicating that there is no button number selected at the light display start time. Reading means;
Holding means for holding the first highlight information and the second highlight information read by the reading means;
Setting means for setting the second highlight information in the sub-picture decoder at a time prior to the first highlight display end time based on the second highlight information held by the holding means. When,
Display start means for starting the second highlight display at the second highlight display start time based on the second highlight information set in the sub-picture decoder by the setting means;
If the value of the button number to which the first highlight is made is changed at a time before the first highlight display end time, the changed button number value is changed to the second highlight value. Setting means for setting as the value of the number of the button on which the second highlight is made based on the light information;
An electronic apparatus comprising:

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