JP2003271155A - Data supplying device, data reproducing device and data reception system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate timing deviation resulting from data throughput between a data supplying device and a data reproducing device. <P>SOLUTION: When a download command for file data is made, the reproduction terminal device of a transmission destination first transmits CPU throughput data to the data supplying device 100. The data supplying device 100 reads corresponding addition or subtraction time data from a conversion table included in a CPU 104 in response to the transmission and sends the addition or subtraction time data to a link preparing part 102. The link preparing part 102 adds or subtracts the addition or subtraction time Δt to/from each start time in a link table of a corresponding file to generate a new link table. The link table is replaced with a link table in the file. Thereafter, the file is transmitted to the reproduction terminal device 200. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a data supply device,
The present invention relates to a data reproducing device and a data receiving system, and is particularly suitable for use in a device and a system for synchronously reproducing content data such as music data and text data such as lyrics attached thereto.

[0002]

2. Description of the Related Art With the rapid spread of the Internet, various content data can be easily stored in a personal computer (hereinafter referred to as "personal computer"). Further, by using predetermined software, it becomes possible to edit the accumulated content data or link additional data related to the content.

For example, when music contents are downloaded to a personal computer, text data and image data such as lyrics and background images can be linked to the music contents. Furthermore, if a mobile terminal device such as a mobile phone device is connected to a personal computer, these music contents,
A file including text data and image data can be downloaded to the mobile terminal device. This allows the user to view the file data edited by himself / herself at any time and anywhere.

[0004]

In the above case, the file data is created on the personal computer, but the file data is reproduced on the portable terminal device. However,
CPU (Central-P) installed in a personal computer
The processing capacity of the processor-unit) is usually higher than that of the CPU mounted in the mobile terminal device. Such a difference in processing capability causes a time difference between the reproduction output timing of text data and the like on the personal computer and the reproduction output timing of these data on the portable terminal device. For this reason, for example, lyrics are displayed with a delay during reproduction on the mobile terminal device, resulting in a sense of discomfort to the user.

Therefore, the present invention provides a data supply device, a data reproduction device, and a data reception system which eliminate such inconveniences and can always reproduce and output additional data such as text data and video data at a desired timing. is there.

[0006]

In view of the above problems, the present invention has the following features.

According to a first aspect of the present invention, main data to be continuously reproduced, additional data composed of a plurality of blocks and added to the main data, and reproduction of each block with respect to a reproduction time axis of the main data. In a data supply device that supplies link data that defines timing,
It is characterized by further comprising timing changing means for uniformly changing the reproduction timing for all the blocks at predetermined time intervals.

According to a second aspect of the present invention, in the data supply apparatus according to the first aspect, the timing changing means includes addition key operation means and subtraction key operation means, and the addition operation is performed. When the key operation means is operated, a predetermined time is uniformly added to the reproduction timings of all the blocks, and when the subtraction key operation means is operated, the predetermined time is uniformly added to the reproduction timings of all the blocks. It is characterized by subtraction.

According to a third aspect of the present invention, main data to be continuously reproduced, additional data composed of a plurality of blocks and added to the main data, and reproduction of each block with respect to a reproduction time axis of the main data. A data reproducing apparatus for reproducing file data including link data defining timing, characterized by further comprising a timing changing means for uniformly changing the reproducing timing for all the blocks at predetermined time intervals.

According to a fourth aspect of the present invention, in the data reproducing apparatus according to the second aspect, the timing changing means includes addition key operation means and subtraction key operation means, and the addition operation is performed. When the key operation means is operated, a predetermined time is uniformly added to the reproduction timings of all the blocks, and when the subtraction key operation means is operated, the predetermined time is uniformly subtracted from the reproduction timings of all the blocks. It is characterized by

According to a fifth aspect of the present invention, main data continuously reproduced, additional data composed of a plurality of blocks and added to the main data, and reproduction of each block with respect to a reproduction time axis of the main data. A data supply device that supplies file data including link data that defines the timing, a data reproduction device that reproduces the file data supplied from the data supply device, and a data supply device between the data supply device and the data reproduction device. A data receiving system including a data transmitting / receiving unit for transmitting / receiving data, wherein the data supply device includes a timing changing unit that uniformly changes a reproduction timing of the block for each of the blocks at predetermined time intervals. Processing capacity comparison means for comparing the processing capacity data of the above and the processing capacity data of the data reproducing apparatus With the door, the data reproduction apparatus,
And a processing capacity data transmitting means for transmitting processing capacity data indicating its own data processing capacity, and at the time of transmitting the file data, the data reproducing apparatus transmits to the data supply apparatus by the processing capacity data transmitting means, The data supply device compares the transmitted processing capacity data with its own processing capacity data, and changes the reproduction timing by the timing changing means for a time corresponding to the comparison result to generate new link data. The generated link data, the main data and the additional data are transmitted to the data reproducing device as a file.

According to a sixth aspect of the present invention, in the data receiving system according to the fifth aspect, the data supply device sets a difference between its own processing capacity and the processing capacity of the data reproducing device to a time on the reproduction time axis. It has a conversion table to convert,
It is characterized in that the reproduction timing is changed by a predetermined time according to the conversion table.

In each of the above claims, the "main data" is, for example, music content data and the like, and the "additional data" is, for example, text data and video data for displaying lyrics and background images. The "data supply device" is, for example, a personal computer or a home server installed in a home or a computer system or a server computer installed in a content provider. The “data reproducing device” is, for example, a mobile terminal device such as a mobile phone device or a stationary reproducing system. Further, the "data transmitting / receiving means" is, for example, a communication interface connecting the personal computer and the mobile terminal device or a wireless communication network connecting the content distribution server and the mobile terminal device.

The features of the present invention will be more apparent from the following description of the embodiments.

However, the following embodiment is merely one embodiment of the present invention, and the meanings of the terms of the present invention and each constituent element are limited to those described in the following embodiment. Not something.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

First, FIG. 1 shows the configuration of a data supply apparatus according to an embodiment. The data supply device 100 includes an input unit 1
01, a link creating unit 102, a music reproducing unit 103,
CPU 104, display driver 105, display 106, and music content database 107
The file storage 108, the communication driver 109, and the communication interface 110.

The input unit 101 is equipped with, for example, a keyboard and a mouse, and is used for inputting texts and commands. The input section 101 includes a + button 101a and a-button for changing the reproduction timing of the text block.
Button 101b is arranged. Link creation unit 102
Generates a link table that defines the reproduction start timing of the text block with respect to the reproduction time axis of the music content.

The music reproducing section 103 reproduces the compressed and encoded music contents to generate an audio signal. The music reproducing unit 103 includes a data decoding unit 103a that expands and decodes the compression-coded music content, and a DA conversion unit 103b that converts the decoded music content into an analog audio signal.

The CPU 104 processes various data according to a built-in program and controls each unit. The display driver 105, under the control of the CPU 104, a screen for linking text to music content,
The display 106 is controlled to display a screen or the like for confirming synchronization between music reproduction and text display. The display 106 displays a predetermined screen under the control of the display driver 105.

The music content database 107 stores music contents by dividing them into files. The music content is compression coded by a predetermined compression method. The file storage unit 108 stores file data generated by linking text data with music content. Such file data includes a music content and text data, as well as a link table of the text data generated by the link creation unit 102.

The communication driver 109 controls communication with the reproduction terminal device. The communication interface 110 is an interface for communicating with the playback terminal device. The communication interface 110 is connected to the reproduction terminal device via, for example, a communication cable.

Next, the operation of the data supply device 100 will be described.

When linking the lyrics text to a predetermined music content, the user first divides the lyrics text into blocks (for example, lyrics phrases) and inputs the lyrics text from the input unit 101. Such text is
The display 10 is sequentially displayed while being divided into blocks.
6 is displayed.

When the input of the lyrics text is completed, the user inputs a reproduction command of the music content corresponding to the lyrics text from the input unit 101. In response to the reproduction instruction, the music content is read from the music content database 107 and reproduced and output by the music reproduction unit 103.

When music reproduction is started, the user operates the input unit 101 while listening to the reproduced music and links the text block to the music content.
That is, the text block is designated at the timing when the text block is to be reproduced and output. This allows
The text block is linked to the reproduction time on the music reproduction time axis. The link creation is performed by the link creation unit 102. The link creating unit 102 sequentially stores the linking, that is, the reproduction time of each text block on the reproduction time axis on the table. As a result, the link table is generated.

When the reproduction of the music contents is completed and the linking of the text blocks is completed, the music contents, the text data and the link creating section 1 are completed.
The link table created in 02 is stored in one file and stored in the file storage unit 108.

Linking of the text blocks will be described with reference to FIG. In the figure, t1, t2, ...
tn is the elapsed time from the start of playing the music content. Block 1, block 2, ..., Block n are each of the above text blocks. After the music content is reproduced and output, when the block 1 is designated as described above at time t1, the reproduction output time of the block 1 on the reproduction time axis is set to t1. Similarly, block 2,
When block 3, ..., Block n are sequentially designated, the reproduction output time of each block is set to t2, t3 ,. Then, each block and its start time are associated with each other on the link table. Then, the link table is generated.

Returning to FIG. 1, when transmitting file data to the reproduction terminal device, the user operates the input unit 101 to specify predetermined file data. Then, when a command to send the file data is input, the file data is read from the file storage unit 108 and sent to the playback terminal device via the communication driver 109 and the communication interface 110. As a result, the file data is downloaded to the reproduction terminal device.

The user can reproduce the music content and display the lyrics text on the reproduction terminal device by the download. However, when the processing capacity of the CPU built in the reproduction terminal apparatus side differs from the processing capacity of the data supply apparatus 100 at each stage, the reproduction output of each text block is delayed or progressed, so that the user specifies The lyrics text may not be displayed at the timing when you do.

In such a case, the user is the data supply device 1
On the 00 side, after reading the file data,
The input unit 101 is operated to rewrite the link table in the file. That is, by operating the + button 101a or-button 101b arranged on the input unit 101,
The playback timing for all text blocks in the link table is uniformly advanced or delayed for a predetermined time.

For example, the + button 101a and the-button 1
Each 01b is assigned 0.1 seconds, and +
When the button 101a is operated once, the reproduction timings of all text blocks are uniformly advanced by 0.1 seconds. When the-button 101a is operated once, the reproduction timings of all text blocks are uniformly delayed by 0.1 seconds.

Such delay and progress are made by uniformly adding or subtracting the set time Δt (0.1 seconds in the above case) to the start times t1, t2, ..., Tn in the link table shown in FIG. Done. For example, the + button is k
When operated, the start time on the link table is t1.
+ K · Δt, t2 + k · Δt, ..., Tn + k · Δt.

The new link table thus generated is stored in a new file together with the music content and text data. Then, it is transmitted / downloaded to the reproduction terminal device according to the user's instruction. The user plays the re-downloaded file data and confirms whether the output timing of the music content and the lyrics text is synchronized. If the data is not properly synchronized, the data supply device 100
Change the playback timing of the text block in. Changing the playback timing and re-downloading,
The process is repeated until the reproduction timing desired by the user is reached.

As described above, the reproduction shift of the text block due to the difference in the CPU power is corrected. Since the correction operation is performed on the side of the data supply device 100 as described above, it is repeated until the reproduction shift is corrected. You have to repeat the download. Such re-download operation may be troublesome for the user. If the reproduction terminal device can make such correction, it will be easier for the user.

FIG. 3 is a diagram showing the structure of a reproduction terminal device 200 having the above-mentioned reproduction deviation correcting function.

The reproduction terminal device 200 includes an input unit 201,
Link correction unit 202, music reproduction unit 203, CPU2
04, a display driver 205, a display 206, a memory interface 207, a memory card 208, a communication driver 209, and a communication interface 210.

The input unit 201 is provided with an operation panel such as a numeric keypad, and is used when inputting a predetermined command. The input section 201 is provided with a + button 201a and a-button 201b for changing the reproduction timing of the text block. The link correction unit 202 changes the link table that defines the reproduction start timing of the text block with respect to the reproduction time axis of the music content.

The music reproducing section 203 reproduces the compressed and encoded music content to generate an audio signal. The music reproducing unit 203 includes a data decoding unit 203a that expands and decodes the compression-coded music content, and a DA conversion unit 203b that converts the decoded music content into an analog audio signal.

The CPU 204 processes various data according to a built-in program and controls each unit. The display driver 205 controls the display 206 under the control of the CPU 204 so as to display a lyrics text screen or the like synchronized with the music content. Display 20
6 displays a predetermined screen under the control of the display driver 205.

The memory interface 207 is an interface for controlling the input / output of data with respect to the memory card 208. The memory card 208 divides the file data transmitted from the data supply device 100 into files and stores the files.

The communication driver 209 controls communication with the data supply device 100. Communication interface 21
Reference numeral 0 is an interface for communicating with the data supply device 100.

Next, the operation of the data supply device 100 will be described.

First, the user selects a predetermined file from the files stored in the memory card 208 and inputs a reproduction command. When the reproduction command is input, the file is read from the memory card 208 via the memory interface 207. Of these, the music content is supplied to the music reproducing unit 203, reproduced here as an audio signal, and then output from the speaker. Further, the text data is sequentially reproduced at the timing according to the link table and then displayed on the display via the display driver 205. This allows the user to listen to music and lyrics at the same time.

When synchronization between the text display and the music reproduction is deviated during such reproduction, the user operates the input unit 201 to correct the desynchronization. That is, the + button 201a or − arranged on the input unit 201
The button 201b is operated to uniformly advance or delay the reproduction timing for all text blocks in the link table by a predetermined time.

As in the case of the data supply device 100,
The + button 201a and the-button 201b have 0.
When 1 second is assigned, the + button 201a
When is operated once, the reproduction timing of all text blocks is uniformly advanced by 0.1 seconds, and when the-button 201a is operated once, the reproduction timing of all text blocks is uniformly 0.1 seconds. Be delayed. The delay and progress are similar to those in the case of the data supply device 100, and the start times t1 and t in the link table shown in FIG.
It is performed by uniformly adding or subtracting the set time Δt (0.1 seconds in the above case) to 2, ..., Tn. Then, the reproduction timing of the text block is adjusted. Such adjustment is repeated until the user determines that the synchronization between the music reproduction and the text display is good.

The reproduction after the adjustment is performed according to the newly created link table. Then, when the reproduction of the file ends, the link table stored in the file is replaced with the newly generated link table. Accordingly, when the file is reproduced next time, the reproduction display of the text data is performed according to the link table adjusted as described above.

By the way, if the reproducing terminal device shown in FIG. 3 is used, the reproducing timing can be arbitrarily adjusted on the reproducing terminal device side, which is simpler than that in the case of FIG. However, it is more convenient for the user that the synchronization adjustment is automatically performed on the device side without performing a separate operation.

4 and 5 show the configurations of the data supply device 100 and the reproduction terminal device 200 capable of automatically adjusting the reproduction timing of the text data. In the figure, the same parts as those in FIGS. 1 and 3 are designated by the same reference numerals and the description thereof will be omitted.

The data supply device 100 shown in FIG.
A conversion table is built in 04. The conversion table stores the performance data of the reproduction terminal device side CPU and the addition or subtraction time data for the link table in association with each other. On the other hand, the reproduction terminal device 200 of FIG.
Stores the performance data of the CPU in the CPU 204.

FIG. 6 shows the flow of file data download processing when these data supply device 100 and reproduction terminal device 200 are used.

When the user inputs a file data download command, the data supply device 100 first issues a communication start request to the reproduction terminal device 200. In response to this, the reproduction terminal device 200 returns a communication response request to the data supply device 100. Next, the data supply device 10
0 issues a CPU performance data transmission request to the reproduction terminal device 200. In response to this, the playback terminal device 200
The performance data stored in the CPU 204 is read out and transmitted to the data supply device 100.

In response to the transmission of the transmission data, the data supply apparatus 100 reads out the corresponding addition or subtraction time data from the conversion table built in the CPU 104 and transmits it to the link creating section 102. Link creator 10
2 adds or subtracts the addition or subtraction time Δt to each start time in the link table of the file to generate a new link table, and transmits this to the CPU 104. The CPU 104 replaces the link table with the link table in the file to generate a new file and sends it to the communication driver 109. The communication driver 109 transmits such a file to the playback terminal device 200 via the communication interface 110. Then, the file data in which the synchronization deviation due to the performance difference between both CPUs is corrected is transmitted / downloaded to the reproduction terminal device 200.

Although various embodiments according to the present invention have been described above, it goes without saying that the present invention is not limited to such embodiments and various modifications can be made. For example, in the above embodiment, the additional data is the text data for the lyrics text, but other than this, image data for the background image may be included. Further, although the main data is music content, it may be replaced with moving picture content such as a movie. Furthermore, in the above-described embodiment, the data supply device 100 and the reproduction terminal device 200 are connected by a communication cable, but instead of this, they may be connected by wireless communication or the Internet.

In addition, the embodiment of the present invention can be appropriately modified in various ways within the scope of the technical idea of the present invention.

[0056]

As described above, according to the present invention, the deviation of the reproduction timing of the additional data caused by the data processing capability between the data supply device and the data reproduction device can be adjusted appropriately by the timing changing means. Further, such adjustment is realized by a simple process of uniformly changing the reproduction timing in the link data for a predetermined time by the changing means. Further, such adjustment processing is achieved by a simple operation such as operating the addition key means or the subtraction key operation means, or
This is achieved by automatically adding or subtracting a predetermined time based on the difference in the data processing capabilities.

As described above, according to the present invention, the display deviation of the additional data can be corrected by a simple operation,
Therefore, it is possible to simultaneously improve the convenience of the user and eliminate the discomfort caused by the output deviation of the additional data.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a data supply device according to an embodiment.

FIG. 2 is a diagram showing a link table generating operation according to the embodiment.

FIG. 3 is a diagram showing a configuration of a reproduction terminal device according to an embodiment.

FIG. 4 is a diagram showing a configuration of a data supply device according to another embodiment.

FIG. 5 is a diagram showing a configuration of a reproduction terminal device according to another embodiment.

FIG. 6 is a diagram showing a flow of download processing according to another embodiment.

[Explanation of symbols]

102 Link creation department 104 CPU 108 file storage 109 Communication driver 110 communication interface 202 Link correction section 204 CPU 207 memory interface 208 memory card 209 Communication driver 210 communication interface

Claims (6)

[Claims] 1. A link for defining main data to be continuously reproduced, additional data composed of a plurality of blocks and added to the main data, and a reproduction timing of each block with respect to a reproduction time axis of the main data. A data supply device for supplying data and a data supply device, comprising: timing changing means for uniformly changing the reproduction timing for all the blocks at predetermined time intervals. 2. The timing changing means according to claim 1, wherein the timing changing means includes addition key operation means and subtraction key operation means, and when the addition key operation means is operated, all the blocks are operated. A predetermined time is uniformly added to the reproduction timing of the block and the key operation means for subtraction is operated to uniformly subtract the predetermined time from the reproduction timing of all the blocks. . 3. A main data that is continuously reproduced, additional data that is composed of a plurality of blocks and is added to the main data, and a link that defines the reproduction timing of each block with respect to the reproduction time axis of the main data. In a data reproducing apparatus for reproducing file data including data, the data reproducing apparatus further comprises a timing changing unit for uniformly changing the reproducing timing for all the blocks at predetermined time intervals. 4. The timing changing means according to claim 2, wherein the timing changing means includes addition key operation means and subtraction key operation means, and when the addition key operation means is operated, all of the blocks are processed. A data reproducing apparatus, wherein a predetermined time is uniformly added to the reproduction timing, and when the subtraction key operating means is operated, the predetermined time is uniformly subtracted from the reproduction timings of all the blocks. 5. A main data that is continuously reproduced, additional data that is composed of a plurality of blocks and is added to the main data, and a link that defines the reproduction timing of each block with respect to the reproduction time axis of the main data. Data supplying device for supplying file data including data, a data reproducing device for reproducing file data supplied from the data supplying device, and data for transmitting and receiving data between the data supplying device and the data reproducing device A data receiving system having a transmitting / receiving means, wherein the data supply device uniformly changes the reproduction timing of the block at predetermined time intervals for all the blocks, and its own processing capacity data. A processing capacity comparing means for comparing the processing capacity data of the data reproducing device, The data reproducing apparatus includes a processing capacity data transmitting unit that transmits processing capacity data indicating its own data processing capacity, and the data reproducing apparatus uses the processing capacity data transmitting unit to transmit the data when the file data is transmitted. The data supply device compares the transmitted processing capacity data with its own processing capacity data, and changes the reproduction timing by the timing changing means for a time corresponding to the comparison result, and newly updates the reproduction timing. A data receiving system, wherein the link data is generated, and the generated link data, the main data, and the additional data are transmitted as a file to the data reproducing device. 6. The data supply device according to claim 5, comprising a conversion table for converting a difference between its own processing capacity and the processing capacity of the data reproducing device into time on the reproduction time axis, and according to the conversion table. A data receiving system, wherein the reproduction timing is changed by a predetermined time.