WO2006035858A1

WO2006035858A1 - Recording medium reproducing device

Info

Publication number: WO2006035858A1
Application number: PCT/JP2005/017929
Authority: WO
Inventors: Masaaki Tomoda
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2004-09-30
Filing date: 2005-09-29
Publication date: 2006-04-06
Also published as: JP2006099898A

Abstract

When a particular play list is displayed on a display unit (119) of an optical disc reproducing device, a display data switching unit (118) outputs local display data appropriate for the display device stored in the local display data storage unit (117) to the display unit (119) instead of the display data extracted from the reproduction management data. Thus, even when the number of digits of the display area of the display unit device is small, the play list name may be displayed without performing scroll.

Description

Specification

Recording medium playback device

Technical field

The present invention relates to a recording medium playback apparatus that reads specific data from a recording medium on which a plurality of data is recorded in accordance with playback management data and performs playback processing. Background art

[0002] In recent years, for example, MP3 (Mpeg Audio Layer-3) format has been compressed and saved to the hard disk of a personal computer (hereinafter referred to as a personal computer). In order to select and play back, playback management data called a playlist is used. Here, a playlist is a list of song names, and is a list of audio data file names to be played in order of playback.

[0003] When playing back audio data on a personal computer, a list of multiple playlist names and song names described in each playlist is displayed on the monitor screen. By selecting a specific playlist, the desired audio data can be found and reproduced relatively easily.

[0004] On the other hand, in small audio equipment such as portable CD players and audio players using semiconductor memory, in general, since the display device is small, the advantage of a playlist with a small display area can be fully exhibited. There are many things that cannot be done.

[0005] For example, the number of characters that can be displayed in the display area of the display device is limited. For this reason, in order to display a playlist having a large number of characters, a scroll display method is often employed. However, in the scroll display, it may take a long time to recognize the final character of the displayed playlist name, and there is a problem that it is misunderstood to try to read it quickly.

[0006] In order to solve this problem, the display device is provided with a function for displaying characters of multiple sizes, and when the number of characters to be displayed is large, the size of the characters is reduced to display many characters. A method has been proposed for improving the character recognizability (see Patent Document 1). Patent Document 1: Japanese Patent Laid-Open No. 08-79364

Disclosure of the invention

Problems to be solved by the invention

However, for example, in a portable audio device using a liquid crystal as a display device of a remote controller (hereinafter referred to as a liquid crystal remote controller), the display area is usually extremely narrow. For this reason, there is a problem that the visibility deteriorates when the character size is reduced. In addition, providing the display device with a function to display multiple character sizes also contributed to a cost increase.

[0008] An object of the present invention is to provide a recording medium playback device capable of improving the recognizability of a playlist for a user at an increased cost in a device having a display area of an extremely narrow display device such as a liquid crystal remote controller of a portable audio device. It is to provide.

Means for solving the problem

In order to achieve the above object, a first recording medium playback device of the present invention provides:

Recording medium reproducing apparatus for performing reproduction processing by reading specific reproduction data among the reproduction data from the recording medium on which at least one reproduction management data including display data and at least one reproduction data are recorded according to the reproduction management data A reproduction management data storage means for storing reproduction management data read from the recording medium;

Display data extraction means for extracting display data from the reproduction management data stored in the reproduction management data storage means;

Local display data storage means for storing local display data;

Display data switching means for determining whether to switch the display data extracted by the display data extraction means to local display data stored in the local display data storage means, and outputting either one of the data as display data;

Display means for displaying the display data output from the display data switching means.

[0010] In the first recording medium reproducing device of the present invention, when the display data extraction means extracts the display data ID, the display data switching means The replacement means stores the data to be output to the display unit from the display data extracted by the display data extraction means to the local display data corresponding to the prescribed ID stored in the local display data storage means! It is preferable to switch.

Similarly, when the number of characters of the display data extracted by the display data extraction unit exceeds a predetermined number of characters, the display data switching unit converts the data to be output to the display unit into the display data extraction unit. Preferably, the display data extracted by the means is switched to the local display data stored in the local display data storage means.

Similarly, when the character string of the display data extracted by the display data extracting means includes a predetermined character string, the display data switching means outputs the data output to the display unit to the display It is preferable to switch from the display data extracted by the data extraction means to the local display data stored in the local display data storage means.

[0013] In addition, the second recording medium playback device of the present invention includes at least one playback management data including display data and a recording medium on which at least one playback data is recorded, out of the playback data according to the playback management data. A recording medium playback apparatus that reads specific playback data and performs playback processing.

A reproduction management data storage means for storing reproduction management data read from the recording medium;

Display data demultiplexing means for extracting at least two display data from the reproduction management data stored in the reproduction management data storage means;

Display data selection means for outputting one of at least two display data extracted by the display data demultiplexing means;

The display data selection means includes display means for displaying the output display data.

[0014] In the second recording medium playback device of the present invention, at least two display data included in the playback management data are multiplexed in a predetermined order, and the display data selection The means includes at least two displays extracted by the display data demultiplexing means. It is preferable to output the optimum display data to the display means in accordance with the data multiplexing order.

Similarly, at least two pieces of display data included in the reproduction management data each include a display ID, and the display data selection unit is connected to the display unit according to the display ID of the display data extracted by the display data demultiplexing unit. It is preferable to output optimal display data.

[0015] In addition, the third recording medium playback device of the present invention includes at least one playback management data including display data and a recording medium on which at least one playback data is recorded, out of the playback data according to the playback management data. A recording medium playback apparatus that reads specific playback data and performs playback processing.

Partial position specifying means for specifying the partial position of the display data extracted by the display data extracting means;

Display data force extracted by the display data extraction means for extracting a part of the display data designated by the partial position designation means, and display output from the display data partial extraction means And display means for displaying data.

The invention's effect

[0016] According to the first recording medium playback device of the present invention, the display data extracted from the playback management data force is compared with the local display data stored in advance in the device. If the local display data is most suitable for the display device, it is determined whether it is optimal for the display device. Playback management data power Controlling the local display data to be displayed on the display device instead of the extracted display data prevents cost increase. The recognizability of the playlist to the user can be improved.

[0017] Further, according to the second recording medium reproducing device of the present invention, the reproduction management data force extracted is reproduced. By determining which display data is optimal for the display device from the number of display data, and controlling the display to display the optimal display data on the display device, the recognizability of the playlist to the user who increases cost is improved. Can be improved.

[0018] Further, according to the third recording medium reproducing device of the present invention, the display data force partial display data is obtained by designating a specific partial position in the display data in the display data extracted from the reproduction management data. By extracting and controlling the partial display data to be displayed on the display device, it is possible to improve the recognizability of the playlist to the user without increasing the cost.

Brief Description of Drawings

FIG. 1 is a block diagram showing a configuration of an optical disk reproducing device according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram showing a configuration of a display data switching unit in the first embodiment.

FIG. 3 is a diagram showing an example of the data structure of reproduction management data (playlist).

[FIG. 4] FIG. 4 is a diagram showing a tree structure of the reproduction management data (playlist) in FIG.

FIG. 5 is a diagram for explaining an up / down operation by a playlist.

[FIG. 6] FIG. 6 is a diagram showing a state in which the playlist name in FIG. 1 is selected!

FIG. 7 is a flowchart showing the operation of the optical disc playback apparatus in the first embodiment.

[FIG. 8] FIG. 8 is a diagram showing how the playlist name in FIG. 1 is selected!

FIG. 9 is a diagram showing a state in which the playlist name in FIG. 1 is scrolled and displayed.

FIG. 10 is a flowchart showing the operation of the display data switching unit in the first embodiment of the present invention.

FIG. 11 is a diagram showing an example of the data structure of local display data in the first embodiment.

FIG. 12 shows a configuration of a display data switching unit in the second embodiment of the present invention. It is a block diagram.

FIG. 13 is a flowchart showing the operation of the display data switching unit in the second embodiment.

FIG. 14 is a block diagram showing a configuration of a display data switching unit in the third embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the display data switching unit in the third embodiment.

FIG. 16 is a block diagram showing a configuration of an optical disk reproducing device according to Embodiment 4 of the present invention.

FIG. 17 is a block diagram showing a configuration of a display data selection unit in the fourth embodiment.

FIG. 18 is a diagram showing an example of a data structure of reproduction management data (playlist) in the fourth embodiment.

FIG. 19 is a flowchart showing the operation of the optical disc playback apparatus in the fourth embodiment.

FIG. 20 is a flowchart showing the operation of the display data selection unit in the fourth embodiment.

FIG. 21 is a block diagram showing a configuration of a display data selection unit in the fifth embodiment of the present invention.

FIG. 22 is a flowchart showing the operation of the display data selection unit in the fifth embodiment.

FIG. 23 is a block diagram showing a configuration of an optical disk reproducing device according to Embodiment 6 of the present invention.

FIG. 24 is a flowchart showing the operation of the optical disc playback apparatus in the sixth embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In each of the following embodiments, an optical disk playback device is used as the recording medium playback device. The case will be described.

(Embodiment 1)

FIG. 1 is a block diagram showing a configuration of the optical disc reproducing apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a block diagram showing a configuration of a display data switching unit in FIG.

In FIG. 1, an optical disc playback apparatus 100 includes a playback data reading control unit 111, a signal processing unit 112, a system control unit 113, a playback management data reading control unit 114, a playback management data storage unit 115, and a display data extraction unit 116. A local display data storage unit 117, a display data switching unit 118, and a display unit 119.

[0022] It should be noted that the optical pickup means for reproducing the audio data recorded on the optical disk 110, the spindle motor means for driving the optical disk 110, the means for driving and controlling them, etc. are known as optical disk reproducing devices. The description is omitted because it is not related to the subject of the present invention. The same applies to all the following embodiments.

FIG. 2 shows a configuration of the display data switching unit 118. The force display data switching unit 118 includes a playlist ID extraction unit 201 and a switching unit 202.

[0024] Before explaining the operation of the optical disc playback apparatus shown in FIG. 1 and FIG. 2, the data structure of the playback management data constituting the playlist and the use of the playlist will be described. I will explain.

FIG. 3 shows an example of the data structure of the reproduction management data, and FIG. 4 shows the tree structure of the reproduction management data shown in FIG.

[0026] As shown in FIG. 3 and FIG. 4, the playback management data 300 representing a playlist has names “A LL OF DISCI” (D401 in FIG. 4), “ALL OF DISC2”, (D402), “ Includes four playlists: ALL OF DISC3 (same D403) and "MYBEST" (same D404) Each playlist has a playlist ID, playlist name, and playback when this playlist is selected The file name (D411 to D414) of the music data to be recorded and the recording position of the music data on the recording medium (optical disk in this example) are described.

[0027] As shown in Fig. 3, the playlist ID includes a pre-defined ID (0x0 1 to 0χ03 here) and a user ID (0x10 here) that the user can use freely. ,name is" Three playlists, “ALL OF DISCI”, “ALL OF DISC2,...”, “ALL OF DISC3” are described as the default ID, and only “MYBEST” is described as the user ID. Here, the file name and recording position can be linked from other data that is not necessarily described in the playback management data.

FIG. 5 shows a configuration of a main part of the optical disc playback apparatus 100 that plays back audio data based on the playback management data (playlist) of FIG. 0 includes a display unit 119 and a system control unit 113. The system control unit 113 is provided with an activation key 5001, a playlist UP key 502, a reproduction key 503, and a playlist DOWN key 504. The audio data selected based on the playlist is reproduced by the headphones 505.

The optical disc playback apparatus 100 obtains playback management data recorded on the optical disc 110 that is a recording medium by pressing an activation key 501 and displays a playlist on the display unit 119. When the user presses the playlist UP key 502 or the playlist DOWN key 504, the optical disc playback apparatus 100 receives an instruction to select playback management data, and sequentially displays the playlist display as shown in D611 to D614 in FIG. change. Further, when the playback key 503 is pressed, the system control unit 113 receives an instruction to acquire playback data, and is displayed on the display unit 119 at that time to play back the audio data corresponding to the playlist, and the headphones 505 Listen to the music you want.

Next, the operation of the optical disc playback apparatus 100 in FIG. 1 will be described with reference to the flowchart in FIG.

When the reproduction control data acquisition instruction is given to the system control unit 113 by pressing the key shown in FIG. 5, the system control unit 113 reproduces the reproduction management data reading control unit 1 14. A management data acquisition request is made (step S701), and it is determined whether or not reproduction management data has not been acquired (S702). If not acquired, all reproduction management data is read from the optical disk 110 (S703).

[0032] The read reproduction management data is stored in the reproduction management data storage unit 115 (S704), and the display data extraction unit 116 extracts, for example, display data included in the first reproduction management data (S705). This display data is displayed in part 119 (S707). When an instruction to select reproduction management data is received (S 701), the system control unit 113 requests the reproduction management data storage unit 115 to select reproduction management data. For example, if the display data extraction unit 116 indicates an instruction indicating “next” as the reproduction management data selection instruction, the display data included in the second reproduction management data is extracted, and the display unit 119 extracts the display data. Displayed (S707).

[0034] When the reproduction data acquisition instruction is given (S701), the reproduction data reading control unit 111 displays the reproduction data recording position corresponding to the reproduction management data currently displayed from the reproduction management data storage unit 115. Is obtained (S708), the corresponding reproduction data is read from the optical disc 110 (S709), and the signal processing unit 112 performs signal processing to reproduce the reproduction data (S710).

FIG. 8 shows a state where the playlist name of FIG. 3 is selected by pressing the playlist UP key or the playlist DOWN key. FIG. 9 shows a state where the playlist name of FIG. 3 is scrolled.

As shown in FIG. 8, the display unit 119 is a display device having a display area of 6 characters as an example. On the other hand, as shown in Fig. 3, some playlist names have a string length of 6 characters or more. When such a playlist name is displayed on the display unit 119, as shown in D804 of FIG. 8, since the string length of “MYBEST” is within 6 characters, all the strings of “MYBEST” are displayed. However, "ALL OF DISCI", "ALL OF DISC2", and "ALL OF DISC3" are all displayed as the same 6-character string "ALL OF" as shown in D801 to D803. Indistinguishable. Therefore, as shown in D901 to D907 in Fig. 9, it is possible to use the method of scrolling one character at a time and displaying the last character of the display data. Since it takes time to finish the scroll display, the desired playlist If you look for a quick, never good, no way.

Next, feature points of the present embodiment will be described mainly with reference to the block diagrams of FIGS. 1 and 2 and the flowcharts of FIGS. 7 and 10.

As shown in FIG. 1, the optical disc playback apparatus 100 converts the display data extracted by the display data extraction unit 116 from the display data switching unit 118 to the local display data stored in the local display data storage unit 117. Switch to output. Display data switching As shown in FIG. 2, the playlist ID extraction unit 201 extracts the playlist ID of the display data from which the playback management data force has also been extracted (S 1001 in FIG. 10), and the playlist HD is assigned the specified ID (see FIG. 2). 3 (Ox01 to Ox03 in FIG. 3) (S1002), and if it is the specified ID, the local display data corresponding to the playlist ID is acquired from the local display data storage unit 117 (S711).

[0039] FIGS. 11A and 11B show the data structure of local display data. As shown in FIG. 11 (a), the local display data 1101 is display data within 6 characters corresponding to each of the specified IDs, and corresponds to the request from the playlist ID extraction unit 201. The local display data is provided to the display data switching unit 118. The local display data 1101 is, for example, a character string that matches the display capability of the display unit 119 when it is determined as a fixed playlist name in the playlist standard of the specified ID shown in FIG. , It was generated in advance and stored in correspondence with the specified ID. Alternatively, the user may arbitrarily rewrite local data regardless of standardization.

Then, playlist ID extraction unit 201 makes a switching request to switching unit 202, and switching unit 202 acquires from display data extracted by display data extraction unit 116 from local display data storage unit 117. The local display data is switched and output (S712 in Fig. 7).

[0041] As described above, in this embodiment, the display data switching unit 118 determines whether the playlist ID of the display data extracted from the reproduction management data is the specified ID power. The local display data corresponding to the playlist ID is acquired from the display data storage unit 117, and the local display with a small number of digits acquired from the local display data storage unit 117 is extracted from the display data extracted by the display data extraction unit 116. Switch to data and output to display section 119. Thereby, even if the number of display digits in the display area is small, the playlist can be displayed without scrolling.

[0042] (Embodiment 2)

FIG. 12 is a block diagram showing the configuration of the display data switching unit in Embodiment 2 of the present invention, and FIG. 13 is a flowchart showing the operation of the display data switching unit. Shown in Figure 12 As described above, the display data switching unit 118 includes a display data character number calculation unit 1201 and a switching unit 1202.

[0043] Except for the configuration of FIG. 12 and the flowchart of FIG. 13, the configuration and operation of the optical disc playback apparatus are the same as the configuration of the first embodiment shown in FIG. 1 and FIG. The description will focus on the differences from the first embodiment.

The feature points of the present embodiment will be described mainly with reference to the block diagrams of FIGS. 1 and 12 and the flowcharts of FIGS. 7 and 13.

As shown in FIG. 1, the optical disc playback apparatus 100 converts the display data extracted by the display data extraction unit 116 from the display data switching unit 118 to the local display data stored in the local display data storage unit 117. Switch to output. In the display data switching unit 118, as shown in FIG. 12, the display data character number calculation unit 1201 calculates the number of characters in the display data by extracting the playlist ID of the display data extracted from the reproduction management data power (FIG. 13). S1301), determine whether the number of characters exceeds the number of characters that can be displayed in the display device display area (assuming six characters in FIG. 13) (S1302). Local display data corresponding to the list ID is acquired (S711 in Fig. 7).

[0046] As shown in Fig. 11 (a), the local display data 1101 is display data of up to six characters corresponding to each playlist ID, and the local display data storage means 117 is When there is a request from the display data character number calculation unit 1201, the corresponding local display data is provided to the display data switching unit 118. The local display data 1101, for example, is defined as a fixed playlist name in the playlist name power playlist standard of the specified ID in FIG. 3, and a character string that matches the display capability of the display unit 119 is used. It is generated and memorized for each specified ID. Or let the user arbitrarily rewrite the local data regardless of the standard.

[0047] Then, the display data character number calculation unit 1201 issues a switching request to the switching unit 1202, and the switching unit 1202 acquires from the display data extracted by the display data extraction unit 116 from the local display data storage unit 117. Switch to the local display data and output (S712). As described above, in the present embodiment, the display data character number calculation unit 1201 calculates the number of characters in the display data by extracting the playlist ID of the display data extracted from the reproduction management data capability, and the number of characters is the display device. The display data switching unit 118 obtains local display data corresponding to the playlist ID from the local display data storage unit 117 if it exceeds the number of displayable characters in the display area. Display data character number calculation unit 1201 issues a switching request to switching unit 1202, and switching unit 1202 obtains local display data obtained from local display data storage unit 117 from the display data extracted by display data extraction unit 116. To output. Thereby, even if the number of display digits is small, the playlist can be displayed without scrolling.

[Embodiment 3]

FIG. 14 is a block diagram showing the configuration of the display data switching unit 118 according to Embodiment 3 of the present invention, and FIG. 15 is a flowchart showing the operation of the display data switching unit. As shown in FIG. 14, the display data switching unit 118 includes a specified character string comparison unit 1401 and a switching unit 1402.

[0050] Except for the configuration of FIG. 14 and the flowchart of FIG. 13, the configuration and operation of the optical disc playback apparatus are the same as the configuration of the first embodiment shown in FIG. 1 and FIG. The description will focus on the differences from the first embodiment.

[0051] The features of the present embodiment will be described with reference mainly to the block diagrams of FIGS. 1 and 14 and the flowcharts of FIGS. 7 and 15.

As shown in FIG. 1, in the display data switching unit 118, the optical disc playback apparatus 100 converts the display data extracted by the display data extraction unit 116 to the local display data stored in the local display data storage unit 117. Switch to output. In the display data switching unit 118, as shown in FIG. 14, the specified character string comparison unit 1401 determines whether the display data from which the reproduction management data has been extracted includes the specified character string (S150 1 in FIG. 15). If included, the verbal display data corresponding to the specified character string is acquired from the local display data storage unit 117 (S711 in FIG. 7).

[0053] As shown in FIG. 11 (b), the local display data 1102 is display data of up to six characters corresponding to each specified character string, and a request from the specified character string comparison unit 1401. When it is received, the corresponding local display data is provided to the display data switching unit 118. For example, the local display data 1102 is matched to the display capability of the display unit 119 when it is determined as a fixed playlist name in the playlist standard regardless of the presence of the playlist name regulation ID in FIG. A character string is generated and stored in advance in association with a specified character string. Or the user can arbitrarily rewrite local data regardless of standardization!

Then, the specified character string comparison unit 1401 makes a switching request to the switching unit 1402, and the switching unit 1402 uses the low-power display data storage unit 117 from the display data extracted by the display data extraction unit 116. Switch to the local display data acquired from (S712 in Fig. 7).

As described above, in the present embodiment, the specified character string comparison unit 1401 determines whether or not the display data from which the reproduction management data has been extracted includes the specified character string, and if so, the display data switching unit. 118 obtains local display data corresponding to the specified character string from the local display data storage unit 117. The specified character string comparison unit 1401 issues a switching request to the switching unit 1402, and the switching unit 1402 obtains the local display data acquired from the local display data storage unit 117 from the display data extracted by the display data extraction unit 116. To output. As a result, even if the number of display digits is small, it is possible to display the playlist without scrolling.

[Embodiment 4]

FIG. 16 is a block diagram showing the configuration of the optical disk playback apparatus in Embodiment 4 of the present invention, FIG. 17 is a block diagram showing the configuration of the display data selection unit in FIG. 16, and FIG. 18 is the data of playback management data (playlist) FIG. 19 and FIG. 20 showing the structure are flowcharts showing the operation of the optical disc reproducing apparatus of FIG. 16 and FIG.

As shown in FIG. 16, the optical disc playback apparatus 1600 includes a playback data reading control unit 111, a signal processing unit 112, a system control unit 113, a playback management data reading control unit 114, a playback management data storage unit 115, and a display. A data demultiplexing unit 1601, a display data selection unit 1602, and a display unit 119 are included. Further, as shown in FIG. 17, the display data selection unit 1602 includes a selection unit 1701. In FIG. 16, parts having the same functions as those in FIG. 1 are denoted by the same reference numerals. Similarly, in FIG. 18, steps that perform the same operations as those in FIG. 7 are denoted by the same reference numerals.

First, the basic operation of the optical disc playback apparatus 1600 will be described with reference to the block diagram of FIG. 16 and the flowchart of FIG. In response to an instruction to acquire playback management data (S 701 in FIG. 19), the optical disk playback device 1600 makes a playback management data acquisition request to the playback management data read control unit 114 by the system control unit 113, and plays back the playback management data. Is not acquired (S702). If not acquired, all reproduction management data is read from the optical disc 110 (S703), and the read reproduction management data is stored in the reproduction management data storage unit 115 (S704). The display data demultiplexing unit 1601 demultiplexes, for example, the display data group included in the first reproduction management data (S 1901), and the display data selection unit 1602 One display data is selected (S 1902), and this display data is displayed by the display unit 119 (S1903).

[0060] When a reproduction management data selection instruction is issued (S701), the system control unit 113 requests the reproduction management data storage unit 115 to select reproduction management data !, and the display data demultiplexing unit 1601. For example, if the reproduction management data selection instruction indicates “next”, the display data group included in the second reproduction management data is extracted, and the display data selection unit 1602 also includes at least the intermediate power of the plurality of display data. One display data is selected (S 1902), and this display data is displayed by the display unit 119 (S 1903).

[0061] When the reproduction data acquisition instruction is given (S701), the reproduction data reading control unit 111 displays the reproduction data recording position corresponding to the reproduction management data currently displayed from the reproduction management data storage unit 115. Is obtained (S708), the corresponding reproduction data is read from the optical disc 110 (S709), and the signal processing unit 112 performs signal processing to reproduce the reproduction data (S710).

Next, feature points of the present embodiment will be described mainly with reference to the block diagrams of FIGS. 16 and 17, the explanatory view of FIG. 18, and the flowcharts of FIGS.

FIG. 18 is a diagram showing an example of the data structure of reproduction management data (playlist). As shown in FIG. 18 (a), playback management data (playlist) 1801 includes a plurality of playlists. Have a playlist name. (In this example, “ALL OF DISCI” and “DISCI”.) In the example shown in Fig. 18 (a), the playback management data includes two playlist names for one playlist, and when this playlist is selected. The file name of the music data to be played and the recording position of the music data on the optical disc 110 are described.The two playlist names are multiplexed in a predetermined order, and the device using them After the multiplexed data is separated, the optimal playlist name is selected by managing the multiplexing order.

As shown in FIG. 16, the optical disc playback apparatus 1600 selects at least one display data from the display data group separated by the display data demultiplexing unit 1601 in the display data selection unit 1602. Output. In the display data selection unit 1602, as shown in FIG. 17, the selection unit 1701 selects and outputs the optimum display data corresponding to the display capability of the display device from the separated display data group (FIG. 19). S1902).

[0065] As shown in FIG. 18 (a), the first playlist name indicates all the character strings of the playlist name in advance, and the second playlist name is a simplified character string of up to six characters of the playlist name in advance. If the number of characters displayed on the display unit 119 is 6, the display data selection unit 1 602 selects the second playlist name so that the playlist can be viewed without scrolling the display. It becomes possible to increase the sex.

[0066] As described above, in this embodiment, the reproduction management data (playlist) has a plurality of playlist names for one playlist, and the plurality of playlist names are multiplexed in a predetermined order. Has been. After the optical disc playback apparatus 1600 separates the multiplexed playlist names and manages the multiplexing order, the selection unit 1701 of the display data selection unit 1602 selects the separated display data group from the separated display data group. Select and output the optimal display data according to the display capability of the display device. As a result, the playlist can be displayed without scrolling even if the number of display digits is small.

[Embodiment 5]

FIG. 21 is a block diagram showing the configuration of the display data selection unit in the fifth embodiment of the present invention, and FIG. 22 is a flowchart showing the operation of the display data selection unit 1602. As shown in FIG. 21, the display data selection unit 1602 includes a first display ID extraction unit 2101 and a second display ID extraction. A section 2102, an Nth display ID extraction section 2103, and a selection section 2104.

[0068] Except for the configuration of FIG. 21 and the flowchart of FIG. 22, the configuration and operation of the optical disc playback apparatus are the same as the configuration / operation of Embodiment 4 shown in FIG. 16 and FIG. The following description will focus on differences from the fourth embodiment.

[0069] The feature points of the present embodiment will be described mainly with reference to the block diagrams of FIGS. 16 and 21, the explanatory diagram of FIG. 18, and the flowcharts of FIGS.

FIG. 18 (b) shows an example in which the reproduction management data (playlist) 1802 further includes a display ID defined in advance for each playlist name. In the example of Fig. 18 (b), the first playlist name includes the display ID "Oxl l" and the character string "ALL OF DISCI", and the second playlist name is the display ID "0xl2" and the character string "ALL" Includes OF DISC2 ". The device using this playlist can select the optimal playlist name by selecting the display ID. Here, the file name and recording position can be linked from other data that is not necessarily described in the playback management data.

As shown in FIG. 16, the optical disc playback apparatus 1600 selects and outputs at least one display data in the display data group separated by the display data demultiplexing unit 1601 in the display data selection unit 1602 . In the display data selection unit 1602, as shown in FIG. 21, in the first display ID extraction unit 2101, the second display ID extraction unit 2102 and the Nth display ID extraction unit 2103, the first display data, the second display data The display ID is extracted from each of the display data and the Nth display data, and the selection unit 2104 selects and outputs the optimum display data according to the display capability of the display device from the separated display data group. (S1902 in Fig. 19).

[0072] As shown in FIG. 18 (b), the playlist name with the display ID = 0xl l indicates the entire character string of the playlist name, and the playlist name with the display ID = 0x12 is the six characters of the playlist name in advance. If the display unit 119 displays 6 characters, the display data selection unit 1602 can select the second playlist name to display no scrolling. It becomes possible to improve the visibility of the playlist.

Thus, in this embodiment, one playlist has a plurality of playlist names, and each playlist name includes a display ID together with display data. Such a data structure After the display management data (playlist) is separated by the display data demultiplexing unit 1601, the display data selection unit selects the optimum playlist name according to the display capability of the display device based on the display ID. As a result, even if the number of display digits is small, the playlist can be displayed without scrolling.

[0074] (Embodiment 6)

FIG. 23 is a block diagram showing the configuration of the optical disc playback apparatus according to Embodiment 6 of the present invention, and FIG. 24 is a flowchart showing the operation of the optical disc playback apparatus of FIG.

As shown in FIG. 23, the optical disc playback apparatus 2300 includes a playback data reading control unit 111, a signal processing unit 112, a system control unit 113, a playback management data reading control unit 114, a playback management data storage unit 115, and a display. A data extraction unit 2301, a display data partial extraction unit 2302, a partial position designation unit 2303 and a display unit 119 are included.

It should be noted that parts having the same functions as those in the configuration of the optical disc playback apparatus described in FIG. 1 are denoted by the same reference numerals, and the same operations as those in the flowchart of the first embodiment described in FIG. 7 are performed. Steps are denoted by the same reference numerals.

The operation of the optical disk control apparatus configured as described above will be described with reference to the block diagram of FIG. 23 and the flowchart of FIG. First, the basic operation of the optical disc playback apparatus 2300 will be described with reference to FIG.

As shown in FIG. 23, in the optical disc playback apparatus 2300, in response to an instruction to acquire playback management data (S701 in FIG. 24), the system control unit 113 performs playback management for the playback management data read control unit 114. A request for data acquisition is made to determine whether playback management data has not been acquired (S702). If not acquired, all reproduction management data is read from the optical disk 110 (S703). The read reproduction management data is stored in the reproduction management data storage unit 115 (S704), the display data extraction unit 2301 extracts display data included in the first reproduction management data (S705), and the display unit 119 Display data is displayed (S2401).

Then, when an instruction to select reproduction management data is given (S701), the system control unit 113 requests the reproduction management data storage unit 115 to select reproduction management data. For example, if the playback management data selection instruction indicates “next” by the display data extraction unit 2301, the display data included in the second playback management data is extracted, and this display unit 119 Display data is displayed (S2402).

[0080] When the reproduction data acquisition instruction is given (S701), the reproduction data reading control unit 111 displays the reproduction data recording position corresponding to the reproduction management data currently displayed from the reproduction management data storage unit 115. Is obtained (S708), the corresponding reproduction data is read from the optical disc 110 (S709), and the signal processing unit 112 performs signal processing to reproduce the reproduction data (S710).

Next, feature points of the present embodiment will be described. As shown in FIG. 23, the optical disk reproducing device 2300 extracts and outputs only a part of the display data extracted by the display data extracting unit 2301 in the display data partial extracting unit 2302. In the display data partial extraction unit 2302, for example, when the last 6 characters are specified in the partial position specification unit 2303, only the last 6 characters of the playlist name extracted by the display data extraction unit 2301 are extracted and output. . In the case of the playlist name “ALL OF DISCI” in FIG. 3 described above, it becomes “DDISCl” (the mouth is a blank character). By outputting this 6-character display data to the display unit 119, it is possible to improve the visibility of the playlist without scrolling the display for the playlist name having a keyword at the end.

As described above, in the present embodiment, the display data partial extraction unit 2302 extracts and outputs only a part of the display data extracted by the display data extraction unit 2301. In the display data partial extraction unit 2302, for example, when the last 6 characters are specified in the partial position designation unit 2303, only the last 6 characters of the playlist name are extracted and output. As a result, an optimum playlist name can be selected for a playlist name having a keyword at the end, and the playlist can be displayed without scrolling even if the number of display digits is small.

In Embodiment 6 described above, the same effect can be obtained even if several characters in the middle of the description are specified with the display data partial designation being the last six characters.

Further, in all the embodiments of the present invention described above, the recording medium of the recording medium reproducing apparatus has been described as an optical disk. However, the present invention is not limited to this, and is not limited to an optical disk such as a magnetic disk or a semiconductor recording medium. Since it can be applied to recording media and data reading devices other than optical disk playback devices, they are not excluded. Only the playback device Needless to say, it may be an apparatus including a function capable of recording on a recording medium.

[0085] Further, in all embodiments of the present invention, the force given by pressing a key provided in the system control unit for giving instructions such as reproduction management data acquisition is not limited to this. An instruction may be given by voice using a recognition device.

Industrial applicability

[0086] According to the present invention, the display area of a display device is particularly narrow, and in a portable recording medium playback device, the display visibility can be improved, and the device can be reduced in size and cost. In order to contribute, it has high industrial applicability.

Claims

The scope of the claims

[1] Recording in which specific reproduction data is read from the reproduction data according to the reproduction management data from at least one reproduction management data including display data and a recording medium on which at least one reproduction data is recorded. A medium reproduction device, a reproduction management data storage means for storing reproduction management data read from the recording medium;

Local display data storage means for storing local display data;

And a display means for displaying the display data output from the display data switching means.

[2] When the ID of the display data extracted by the display data extracting means is a predetermined ID, the display data switching means uses the display data extracting means to output the data to be output to the display unit. The recording medium reproducing device according to claim 1, wherein the display data is switched from the extracted display data to the local display data corresponding to the specified ID stored in the local display data storage means.

[3] When the number of characters of the display data extracted by the display data extraction unit exceeds a predetermined number of characters, the display data switching unit extracts the data to be output to the display unit by the display data extraction unit The recording medium playback device according to claim 1, wherein display data is switched to local display data stored in the local display data storage means.

[4] When the character string of the display data extracted by the display data extracting means includes a predetermined character string, the display data switching means outputs the data to be output to the display unit to the display data extracting means. 2. The extracted display data is switched to local display data stored in the local display data storage means. Recording medium playback device.

[5] Recording for performing reproduction processing by reading specific reproduction data among the reproduction data from a recording medium on which at least one reproduction management data including display data and at least one reproduction data are recorded according to the reproduction management data A medium reproduction device, a reproduction management data storage means for storing reproduction management data read from the recording medium;

A recording medium reproducing apparatus comprising display means for displaying the output display data.

[6] At least two display data included in the reproduction management data are multiplexed in a predetermined order, and the display data selection means is at least two displays extracted by the display data demultiplexing means. 6. The recording medium reproducing apparatus according to claim 5, wherein optimal display data is output to the display means according to a data multiplexing order.

[7] At least two pieces of display data included in the reproduction management data each include a display ID, and the display data selection unit performs the display unit according to the display ID of the display data extracted by the display data demultiplexing unit. 6. The recording medium playback device according to claim 5, which outputs optimum display data.

[8] Recording in which specific reproduction data is read out from the reproduction data according to the reproduction management data from at least one reproduction management data including display data and a recording medium on which the at least one reproduction data is recorded. A medium reproduction apparatus, a reproduction management data storage means for storing reproduction management data read from the recording medium;

A partial position that specifies the partial position of the display data extracted by the display data extraction means Designation means;

Display data force extracted by the display data extracting means for extracting a part of the display data designated by the partial position designating means, and the display output from the display data partial extracting means A recording medium playback device comprising: display means for displaying data.