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Caption MP3 player having caption display function and method of reproducing caption MP3 data

A technology for MP3 players and subtitles, applied in digital recording/reproduction, analog recording/reproduction, data representation error detection/correction, etc., can solve problems such as monophonic output only, signal noise, and interfering character signal characters , to achieve the effect of rapid retrieval and section movement, prevention of sound quality degradation, and easy retrieval and section movement

Inactive Publication Date: 2006-01-11
EASY SOFTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned subtitle tape method converts the character data of the digital signal into an analog signal and stores it on a magnetic tape, and some problems arise when reproducing the data. These problems are: the character signal interferes with the audio signal to generate noise; and the audio signal interferes with the character data. The signal thus produces a character error; in addition, because the character data is stored on one track of the tape, stereo audio information cannot be output, only mono
When using signal synthesis to achieve stereo output, because it is impossible to completely separate the synthesized signal, signal loss occurs when analyzing the signal
Moreover, since the two signals interfere with each other, when the audio signal is reproduced, both signals will generate noise

Method used

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  • Caption MP3 player having caption display function and method of reproducing caption MP3 data
  • Caption MP3 player having caption display function and method of reproducing caption MP3 data
  • Caption MP3 player having caption display function and method of reproducing caption MP3 data

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no. 1 example

[0032] Next, the subtitle MP3 data format of the first embodiment of the present invention will be described.

[0033] FIG. 2 shows the subtitle MP3 data format of an embodiment of the present invention. The subtitle MP3 information of the present invention is composed of audio information 20 and subtitle information 22 . Audio information 20 has a standard MP3 file format including header, CRC, audio data and ancillary data. The header is located in a 32-bit fixed segment, and the layer and sampling frequency, and other frame information are stored in this segment. As an option, there is no CRC depending on the header. Audio data is compressed data, and its length depends on the type of data. Auxiliary data is a user-defined area, including additional information, and the size is not fixed.

[0034] Each subtitle information 22 includes a start sync code 1 , reproduction number data 2 , and information data 8 . Those shown in FIG. 2 are just an example, and are not neces...

no. 2 example

[0057] The subtitle MP3 data format 50 of the second embodiment of the present invention is as Figure 4 As shown, a plurality of subtitle MP3 files 50a, 50b, . . . are included. Each subtitle MP3 file has audio information 52 and subtitle information 54 . Audio information 52 includes standard MPEG audio files as in the first embodiment.

[0058] exist Figure 4 In , subtitle information 54 is appended after audio information 52 . Different from this, it is also possible to make the subtitle information 54 be located before the audio information 52, but when considering the versatility of the MP3 file reproduction software, it is best to use Figure 4 structure shown.

[0059] exist Figure 4 In, a subtitle MP3 file (for example, 50a) includes an audio information 52a and a subtitle information 54a. However, this representation is only for simplifying the figure. In fact, most subtitle MP3 files include a plurality of audio information and a plurality of subtitle inform...

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Abstract

A caption MP3 player having a caption display function of displaying caption information in synchronism with corresponding audio information when the audio information is outputted on stereo, a caption MP3 data format and a method of reproducing the caption MP3 data are provided. The caption MP3 player includes a storage section to which the audio information and the corresponding caption information are inputted and stored therein, a signal separation section for separating the audio information and the caption information provided from the storage section, a control section for controlling storage and output of the information through the storage section and controlling the audio and caption information separated by the signal separation section to be synchronized with each other, and a caption output section for outputting the caption information synchronized with the audio information that corresponds to the caption information and is outputted from the audio output section.

Description

field of invention [0001] The present invention relates to the subtitle MP3 player with subtitle display function, the subtitle MP3 data format and the method for reproducing the subtitle MP3 data, in particular, relate to such a subtitle MP3 player, which has the function of outputting stereo audio information and being able to communicate with The corresponding audio information synchronizes the function of displaying subtitle information on a display, and relates to MP3 player data formats and methods of reproducing subtitle MP3 data. Background technique [0002] Generally, MP3 refers to the third generation of MPEG (Moving Picture Experts Group), which belongs to the audio technology in the field of MPEG. MP3 is an audio file format that uses audio data encoding technology to compress existing data without degrading the sound quality. Such MP3 files generally have a recording format of AAU (hereinafter referred to as "audio decoding unit"). In other words, the MP3 fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/04G11B20/10G10K15/02G10K15/04G11B27/10H03M13/09
CPCH03M13/09G11B20/10
Inventor 鲁英薰
Owner EASY SOFTEC
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