TWI270821B - Portable audio playing apparatus with simultaneous lyric display system and the display method - Google Patents

Abstract

The present invention provides a simultaneous lyric display system on a portable audio playing apparatus and the display method, which comprises a storage module stored with lyric document; a row adjusting module for adjusting the lyric information display in the lyric document for adapting the lyric information on the monitor, a simultaneous display module, which in real-time monitors the time for currently played audio document, and conduct simultaneous display based on the time mark corresponding to the time and the adjustment result from the row adjustment module, so as to automatically and simultaneously display lyric information on the monitor while playing the song.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lyrics synchronous display system and method thereof, and more particularly to a lyrics synchronous display system for a portable audio playback device and a display method thereof. [Prior Art] At present, digital audio products represented by Μ P 3 m a η are increasingly presented to consumers. The portable MP3 player is popular among users for its stylish and dazzling appearance, compact and lightweight body, diversified functions and full compatibility with the new life of the Internet era.

Portable audio playback devices can automatically download songs and playlists, and whenever the portable device is connected to a personal computer, the content can be updated in a timely manner. This allows users to listen to songs anytime, anywhere.

There are various brands of portable devices on the market today, for example, ΜΡ 3 players, all with their hardware specifications, formats and service websites to provide audio file downloads and automatic system updates. With the development of MP3 technology, there are also many software products that help users manage MP3 functions. For many users, the simultaneous display of lyrics function provides great convenience for users to view lyrics. Users can enjoy songs while enjoying Browse the lyrics content and follow the songs you play to sing. You can also implement the Karaoke function. This is what most music lovers expect, and it is also a development direction for portable audio playback devices. Usually when playing MP3 on a personal computer, the lyrics file is separated from the MP3 file and the basic principle of the function is to play Μ Ρ 3

Page 5 1270821 V. Description of the invention (2) When the song is used, some methods are used to obtain the lyrics text of the lyrics set in advance in a special format to realize the lyrics while playing the song. The most popular lyric file format on the computer is the LRC lyrics format. This LRC lyric is a plain text-based lyrics-specific format that contains time stamps of the form n [ MM : SS ] π. Because it is based on a plain text format, it can be easily edited on a computer. For the portable device, the synchronous lyric display function combines the text content such as lyrics with the audio file, and completes all operations by one download. However, since the size of the LCD of the portable MP3 player is small, and the number of bytes per line is set by the LCD or MP3 player manufacturer, when the sentence displaying the word is too long, the remaining words are Will be transferred to the next line, so when you need to display the lyrics synchronously, the sentences are usually not displayed neatly. Some Μ P 3 players have very small display fonts so that sentences under one time label can be displayed on the same line, but this is not good for the user. However, the above problem can be solved by the user editing the lyrics file by using the editing tool before the lyrics are downloaded from the PC to the portable device, but the user must learn to use the editing tool, and the creator manually edits using the lyric editing tool, and each All MP3 files need to be revised one by one, so a lot of work needs to be done. Therefore, there is a need for a system and method for automatically editing synchronized lyrics, which directly displays the synchronized lyrics in L C D according to the time stamp line by line without manual setting by the user.

1270821 V. SUMMARY OF THE INVENTION (3) In view of the above, the present invention provides a lyrics synchronization display system for a portable audio playback device and a display method thereof, which can automatically adjust lyrics for synchronization. Display without any manual settings by the user. Therefore, in order to achieve the above object, the present invention provides a lyrics synchronization display system for a portable audio playback device, which can simultaneously display lyric information in a display screen while playing a song, including: a storage module for storing and audio a lyric file corresponding to the file; a line adjustment module, which adjusts the lyric information display in the lyric file, so that the lyric information is adapted to the display screen, and includes a sentence length calculation unit that reads the lyric file according to the lyric file The time tag sequence calculates the number of bytes of the sentence under the time tag; a line length determining unit that determines the specified line length of the display; and a row interrupt setting unit that compares the number of bytes of the sentence with the specified line length When the number of the tuple is equal to the specified row length, a row of interrupt tags is set at the byte to display the remaining bytes on the next row; a synchronous display module monitors the currently played current in real time. The time of the audio file, and according to the time label corresponding to the time, according to the adjustment result of the adjustment module of the line Line sync display. In addition, the present invention provides a lyrics synchronous display method for a portable audio playback device, which can simultaneously display lyric information in a display screen while playing a song, first storing a lyric file corresponding to the audio file, reading the lyric file, and The time tag order of the lyrics file,

1270821 V. Description of invention (4) Calculate the number of bytes of the sentence under the time label, determine the length of the specified line, and adjust the display format according to the length of the specified line, compare the number of bytes of the sentence with the specified line Length, then when the number of bytes is equal to the specified line length, a row of interrupt tags is set at the byte to display the remaining bytes on the next line, and the time of the currently played audio file is monitored instantly. And according to the time label corresponding to the time, the synchronization result is displayed according to the adjustment result. The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention. [Embodiment] The features and implementations of the present invention will be described in detail with reference to the preferred embodiments. The lyrics are usually displayed in one or two lines on the big screen. This is more common in the karaoke function. It is also accompanied by video playback during song playback. In order to facilitate the user to view the image, usually only a few lines of text are played. . However, for a portable device, it is inconvenient to display only one line or only a few lines, because the screen is small and generally does not have a video display function. For a smaller screen, the full-screen display of the lyrics is easier to view, thereby Enables users to view continuous lyrics on a smaller screen while listening to songs without interruption. And for the user of the portable device, the full-screen display lyrics can provide a larger viewing range, allowing the user to capture each word in the sentence in time, and the user can also determine the specific display state by setting parameters.

1270821 V. INSTRUCTION DESCRIPTION (5) The present invention adjusts the display of the synchronized words so that the sentences can automatically adjust the lyrics according to the order of the time stamps. For PC users, most lyrics sync displays need to fit the monitor screen. Is the monitor screen specification normal? 1 4, 1 5, 1 7 and 2 1 inch, the standard length of a sentence is displayed as 1 0~2 0 Chinese characters or 4 0~5 0 English words. In general, sentences are displayed based on the song time associated with the display size. The creator should place a complete sentence under a time stamp in a separate line whenever possible. For portable devices, the shape of LCDs manufactured by different manufacturers is not the same. For example, the display screen of Μ P 3 player includes specifications of 42mm, 34mm, 36mm, 18mm, etc. Each LCD has its own Its own rules enable words and Chinese characters to be displayed optimally on the screen. The length of the displayed sentence is usually managed and arranged by the LCD driver according to the font size and the layout designed by the manufacturer. For example, if the LCD is 8 0*64 and the font is 1 2 * 1 2, the line is allowed to include 6 Words. It can also be said that each row is allowed to display data of 6 bytes. If the length of the sentence is greater than 6 bytes, the remaining single time needs to be displayed in the next line. First, the system of the present invention is described in FIG. 1 , which is a module architecture diagram of a lyrics synchronization display system of the portable audio playback device of the present invention. The system includes: (1) a storage module 1 1 0, which is used for storing an audio file and a corresponding lyric file. The lyric file includes information such as a song name, an album, and a singer name in addition to the lyrics corresponding to the song. (2) line adjustment module 1 2 0, which adjusts the current display lyrics, so that

Page 9 1270821 V. Description of the invention (6) Displaying the lyrics adapted to the display screen, comprising: a sentence length calculation unit 1 2 1 , which reads the lyrics file, and calculates the length of the displayed sentence according to the time label order of the lyrics file; Determining the unit 1 2 2, according to the size of the display screen, determining the specified line length of the display; the line interruption setting unit 1 2 3, the real-time ratio of the sentence length and the specified line length, when the sentence length is greater than the prescribed line In the case of a length, a row of interrupt tags is set at the end of the current line to display the remaining bytes in synchronization with the lyrics on the next line. The row interrupt setting unit 1 2 3 simultaneously measures whether the last byte of each row after the adjustment is a null tuple, and if it is a non-vacancy tuple, sets a row of interrupt tags at the empty tuple before the last byte. Used to display the complete word at the end of the line. (3) The page adjustment module 1 6 0 is used for displaying the lyrics in full screen synchronously, and updating the screen display by page, including a display line number calculation unit, a prescribed line determination unit and a page interruption setting unit (not shown) Show). The display line number calculation unit is configured to accumulate the current line number of the current page lyrics, and the specified line number determining unit determines the specified number of lines per page according to the size of the display screen, and the page interruption setting unit, the real-time comparison The current number of rows and the specified number of rows per page, when the current number of rows is equal to the specified number of rows, a page interrupt tag is set in the current row. (4) A decoding module 1404 that decodes the audio file to produce a decoded output. Audio sound (6; (5) audio generation module 150, which converts the decoded output into an analogy to achieve the playback of the song. The synchronous display module 130, while the song is playing,

Page 10 1270821 V. Invention Description (7) Monitor the time of playing the song, and display the corresponding lyrics according to the adjustment of the line adjustment module 1 2 0 and the page adjustment module 1 60 according to the time label corresponding to the time. . Please refer to FIG. 2 for the overall flow chart of the present invention. First, the lyric file corresponding to the audio file is stored (step 2 1 0), and the lyric file may further include related information of the song name, album, and artist name. Then reading the lyric file, and calculating the number of bytes of the sentence under the time stamp according to the time tag sequence of the lyric file (step 2 2 0 ), determining the specified line length of the display (step 2 3 0 ), and then according to The specified line length, the display format is adjusted (step 2 4 0 ), the system monitors the time of the currently played audio file in real time, and according to the time label corresponding to the time, performs synchronous display according to the adjustment result (step 2 5 0 ) . Please refer to "Figure 3", which is a flow chart for adjusting the display format according to the specified line length. First, the number of bytes of the sentence is compared with the length of the specified line (step 2 4 1 ). When the number of bytes is equal to the specified line length, a row of interrupt tags is set at the byte for the remaining The byte is displayed on the next line (step 2 4 2 ). The above process further includes detecting whether the last byte of each row after adjustment is a null tuple. If it is a non-vacancy tuple, setting a row of interrupt tags at the empty tuple before the last byte, so that the word is not The line breaks the label and the complete word is displayed at the end of the line. Please refer to "Fig. 4", which is a process of updating the display page according to the number of lines specified on the display page, first calculating the current page display line number (step 410), and determining the number of prescribed lines that can be displayed per page (step 4 2 0) ,immediate

Page 11 1270821 V. Description of Invention (8) Compared with the current page display line number and the specified number of lines (step 4 3 0 ), when the current line number is equal to the specified line number, a page is set in the current line The interrupt tag is used to display the remaining lines in the next page (step 44 0 ). Hereinafter, the present invention will be described in detail by taking a portable MP3 player to simultaneously display lyrics as an example. In this embodiment, the synchronous display of the songs of the MP3 songs is realized by using the standard LRC file. The user only needs to keep the names of the MP3 song files and the LRC lyrics files in the same folder and store them in the same folder, so that the lyrics can be synchronously displayed. This allows users to take advantage of the rich L R C lyrics on the Internet without having to write and debug them themselves. The lyrics downloaded by the user from the Internet are as shown in "Picture 5", and each lyric includes a time stamp 10 displayed in synchronization with the song. "Figure 6" is the LCD size of the portable device according to the embodiment of the present invention. The display format is preset by the manufacturer and stored in the MP3 processor, so that the line adjustment module and the page adjustment module can read. Take the length of the sentence and the number of lines. Please refer to "Figure 7", which is a schematic diagram of the format adjustment of the synchronized lyrics. The row adjustment module calculates the length of the sentence under each time label 10, and when the number of bytes is equal to the specified line length, sets a row of interrupt labels 1 0 0, and detects whether the last byte of each line after adjustment is A vacancy tuple, if it is a non-vacancy tuple, sets a row of interrupt tags at the vacancy tuple before the last byte, thereby avoiding interruption of the word setting, so that the word is not interrupted by the line break label. The complete word is displayed at the end of the line.

Page 12 1270821 V. Description of the invention (9) The page adjustment module calculates the number of lines allowed to be displayed per page. In this embodiment, the number of lines allowed per page is 7, as shown in "Figure 8", the system is first. At the time label 10, a page initialization label is set, and the number of lines corresponding to the first time label 10 is marked as the first line, and the system accumulates the number of lines, and each time a time label or a line interrupt label is encountered, Count one line, when the number of lines reaches 7, set a page interrupt label 3 0, then the screen is updated, converted to the next page display (as shown in Figure 9), and the number of lines is reset to 1, starting from the new The number of rows is accumulated. Please refer to "FIG. 10", which is a flow chart of the adjustment of the embodiment of the present invention. First, the synchronous lyrics file is read (step 1 0 1 0 ), and the synchronous display module reads the first time label (step 1 0 1 1 ), and calculates the number of bytes of the sentence under the label (step 1 0 1 2 ) And then comparing the number of bytes to a specified line length (number of bytes) (step 1 0 1 3 ), if the number of bytes of the sentence is greater than the specified line length, detecting the last bit of the sentence a tuple (step 1 0 1 4), if the last byte is a null tuple (step 1 0 1 5), then a row interrupt label is set in the last byte (step 1 0 1 7), If the last byte is not a null tuple, then a preceding empty tuple is read (step 1 0 1 6) and a row break label is set at the empty tuple. The program then proceeds to process the sentence under the next time stamp (step 1 0 1 9) until all sentences have been processed. If it is the last time label (step 1 0 1 8), the entire process ends. Please refer to "FIG. 1 1", which is a page adjustment flowchart of the embodiment of the present invention. First, the current line number is initialized, and the first time label is read.

Page 13 1270821 V. Invention Description (ίο) (Step 1 11 0 ), and set the first page interrupt tag (step 1 1 1 1 ) at the first time stamp, setting the first time label The number of rows is 1 (step 1 1 1 2 ), detecting the row break in the first time tag sentence (step 1 1 1 3 ), if there is a row break (step 1 1 1 4 ), then the current row number Add 1 (step 1 1 1 5 ); if there is no line break, read the next time label (step 1 1 1 6 ), if there is no next time label (step 1 1 2 0 ), exit the program, If there is a next time stamp, add 1 to the current number of rows (step 1 1 1 5 ), accumulate the number of rows in this way, and then compare the current number of rows with the specified number of rows per page (step 1 1) 1 7) If the current number of lines is equal to the specified number of lines per page, a page interrupt tag is set in the current line (step 1 1 1 8). At the same time, the current number of lines is reset to 1 (step 1 1 1 9 ), and the next time label is processed until the end of the file reaches the end of the file to complete the processing of the entire lyric file. Please refer to "Fig. 1 2" for the flow chart of starting the synchronous display function of the present invention. First, an MP3 file is read from the MP3 player (step 1 2 1 0), and the display module displays the default data on the screen (step 1211). Start playing the song (step 1 2 1 2), the system receives the synchronous display lyrics request input by the user (step 1213), and synchronously displays the lyrics in the screen (step 1 2 1 4), and the system immediately determines whether there is an end display. Request (step 1 2 1 5 ), if there is no request to end the display, continue to display the lyrics synchronously (step 1 2 1 4 ) until the last time label (step 1 2 1 6 ), the lyrics display of the track ends, if When the request to end the display is received, the lyrics display is stopped.

Page 14 1270821 V. INSTRUCTION DESCRIPTION (11) The lyrics synchronization display system and the display method thereof of the portable audio playback device disclosed in the present invention can automatically adjust the lyrics for simultaneous display without any manual setting by the user. While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

Page 15 1270821 Brief Description of the Drawings Figure 1 is a block diagram of the module of the present invention; Figure 2 is a general flow chart of the present invention; Figure 3 is a flow chart of the line adjustment; Figure 4 is a flow chart of the page update 5 is a schematic diagram of an unprocessed lyrics format; FIG. 6 is a schematic diagram of an LCD size of a portable device according to an embodiment of the present invention; FIG. 7 is a schematic diagram of a synchronous lyric display format adjustment; FIG. 8 is a schematic diagram of an embodiment of the present invention; FIG. 9 is a schematic diagram of full-screen synchronous display of lyrics according to an embodiment of the present invention; FIG. 1 is a flow chart of adjustment of an embodiment of the present invention; FIG. 1 is a page adjustment of an embodiment of the present invention; Flowchart; and Figure 12 is a flow chart for starting the synchronous display function. [schema description]

Page 16 110· • Storage module 120· • Line adjustment module 121 • • sentence length calculation unit 122 • • Line length determination unit 123 • • Line interruption setting unit 130 • Synchronous display module 140 • • Decoding module 150·•Audio generation module 160· •Page adjustment module 10 ·•Time tag 100·•Line break tag 1270821 Schematic description 30...Page break tag Step 2 1 0...Save the lyric file corresponding to the audio file Step 2 2 0: reading the lyric file, and calculating the number of bytes of the sentence under the time stamp according to the time tag sequence of the lyric file. Step 2 3 0...determining the specified line length of the display Step 2 4 0... according to the specified line length Adjust the display format Step 2 5 0... Instantly monitor the time of the currently played audio file, and according to the time label corresponding to the time, perform synchronous display according to the adjustment result. Step 2 4 1... Compare the byte of the sentence Number and the specified line length step 2 4 2... When the number of bytes is equal to the specified line length, A row of interrupt tags is set at the byte to display the remaining bytes on the next line. Step 41 0... Calculate the current page display line number Step 4 2 0... Determine the number of specified lines that can be displayed per page Step 4 3 0 ...immediately display the number of rows and the specified number of rows for the current page. Step 44 0... When the current number of rows is equal to the specified number of rows, a page interrupt tab is set in the current row to place the remaining rows on the next page. Step 1 0 1 0...Read Synchronization Lyrics File Step 1 0 1 1...Read the first time label Step 1 0 1 2...calculate the number of bytes in the sentence under the label Step 1 0 1 3...Bit Number of groups> Specify the length of the line? Step 1 0 1 4...Detect the last byte

Page 17 1270821 Simple description of the steps Step 1 0 1 5... Vacancies? Step 1 0 1 6...Read a blank tuple in front of it Step 1 0 1 7...Set a line interrupt label Step 1 0 1 8... Last time label? Step 1 0 1 9...Process the sentence under the next time stamp Step 1 1 1 0...Read the first time label Step 1 1 1 1...Set the first page break label at the first time label Step 1 1 1 2...Set the number of lines of the first time stamp to 1 Step 1 1 1 3...Detect line break Step 1 1 1 4... Is there a line break? Step 1 1 1 5... Current line number plus 1 Step 1 Π 6... Read next time label Step 1 1 1 7... Current line number = Number of lines per page? Step 1 11 8...Set a page interrupt tag Step 1 1 1 9...Reset the current line number to 1 Step 1 1 2 0...There is no next time label? Step 1 21 0...Read an MP3 file Step 1 2 1 1...Display default data in the screen Step 1 2 1 2...Play song Step 1 2 1 3...Receive the user input sync display lyrics request Step 1 2 1 4... Synchronizing the lyrics Step 1 2 1 5... Is there a request to end the display? Step 1 2 1 6... Last time label?

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Claims (1)

1270821 VI. Patent Application Scope 1. A lyrics synchronous display system for a portable audio playback device can automatically display lyric information in a display screen while playing a song. The system includes: a storage module for The lyric file corresponding to the audio file is stored; a line adjustment module that adjusts the lyric information display in the lyric file to adapt the lyric information to the display screen, comprising: a sentence length calculation unit that reads the lyric file, Calculating the number of bytes of the sentence under the time label according to the time tag sequence of the lyric file; a line length determining unit that determines the specified line length of the display; and a row interrupt setting unit that compares the number of bytes of the sentence with The specified line length, when the number of bytes is equal to the specified line length, a row of interrupt tags is set at the byte to display the remaining bits on the next line; and a synchronous display module, in real time Monitor the time of the currently playing audio file, and follow the line according to the time stamp corresponding to the time. Adjustment result the whole module to synchronize the display. 2. The lyrics synchronization display system of the portable audio playback device according to claim 1, wherein the line interrupt setting unit further comprises detecting whether the last byte of each line after adjustment is a vacancy tuple, if not A vacancy tuple sets a row of interrupt tags at the vacancy tuple before the last byte. Page 19 1270821 VI. Application Patent Range 3. The lyrics synchronous display system of the portable audio playback device as described in claim 1 of the patent application, further comprising a page adjustment module for updating the screen when the lyrics are displayed in full screen. The display page includes: a display line number calculation unit for accumulating the current page display line number; a specified line number determination unit that determines a specified number of lines that can be displayed per page; and a page interrupt setting unit, the comparison The current page displays the number of rows and the specified number of rows. When the current number of rows is equal to the specified number of rows, a page interrupt tag is set in the current row to display the remaining rows in the next page. 4. A lyrics synchronization display system for a portable audio playback device as claimed in claim 1, wherein the lyric information further includes a song name, an album, and a singer name. 5. A lyrics synchronous display method for a portable audio playback device, which can automatically display lyric information in a display screen while playing a song, including: storing a lyric file corresponding to the audio file; reading the lyric file, and according to the The time tag sequence of the lyrics file, calculating the number of bytes of the sentence under the time tag; determining the specified line length of the display; adjusting the display format according to the specified line length, including: comparing the number of bytes of the sentence with the rule The length of the line; and when the number of bytes is equal to the length of the specified line, the bit is Page 20 1270821 VI. Set a line of interrupt tags at the application scope group to display the remaining bytes on the next line; and monitor the time of the currently played audio file, and according to the time corresponding to the a temple The label is displayed synchronously according to the result of the adjustment. 6. The lyrics synchronization display method of the portable audio playback device according to claim 5, wherein the method further comprises: determining whether the last byte of each line after adjustment is a vacancy tuple, and if it is a non-vacancy tuple, A row of interrupt tags is placed at the empty tuples before the last byte. 7. The lyrics synchronization display method of the portable audio playback device according to claim 5, further comprising the step of updating the display page according to the number of lines specified on the display page, comprising: calculating the number of lines displayed on the current page; determining each The number of lines that can be displayed on the page; the ratio of the number of lines displayed on the current page to the specified number of lines; and when the current number of lines is equal to the specified number of lines, a page interrupt flag is set in the current line for the remaining The line is displayed on the next page. 8. The lyrics synchronous display method of the portable audio playback device according to claim 5, wherein the lyric information further includes a song name, an album, and a singer name. Page 21