CN101299845A - Method for sound-recording FM on mobile terminal into MP3 file and mobile terminal - Google Patents

Abstract

The invention relates to a mobile terminal, particularly to a method for recording the FM into the MP3 file on the mobile terminal and a mobile terminal, including: A. controlling to open the receiving function of FM IC through BB IC; B. controlling the judgement module stored in the NOR FLASH through BB IC and judging whether the mobile terminal opens the FM recording function, if true, switching to step C; otherwise switching to step D; C. recording the radio content of FM into the MP3 file through the multimedia processor DSP, and stores in T FLASH; D. continuing the FM receiving. The mobile terminal includes BB IC, NOR Flash with the judgement module, a multimedia processor DSP and T Flash. The invention realizes the function to record the received content by FM on the mobile terminal into the MP3 files and store, which is convenient for the user to listen to the FM recording when in requirement.

Description

FM records into the method and the portable terminal of mp3 file on a kind of portable terminal

Affiliated technical field

The present invention relates to portable terminal, particularly a kind of frequency modulation (frequencymodulation is hereinafter to be referred as FM) of realizing in mobile phone is recorded into the method and the portable terminal of MP3 (English full name is MPEG Audio Layer3) file.

Background technology

Because the portability of mobile phone, a lot of people listen to the FM program by mobile phone in the life, but busier sometimes, have no time to listen to.For fear of missing the FM program of oneself liking, the FM electrical transcription of listening on the mobile phone also can be preserved, so just can listen to the time marquis of free time.Also sometimes in the program that uppick oneself enjoys a lot, can record it and preserve, can appreciate repeatedly later on.

Tonequality is good, compression ratio is high because the mp3 file form has, be easy to broadcast, and present most of mobile phone is all supported the MP3 playing function.With the mp3 file that records, can play on the mobile phone that MP3 plays supporting, also can copy by transfer of data, on having the mobile phone, MP3 player, PC of MP3 playing function, other plays.So under file of on the mobile phone FM being recorded into MP3 format and preservation is a very practical function.

Summary of the invention

For realizing above-mentioned utility function, the invention provides method and portable terminal that a kind of mobile terminal FM is recorded into mp3 file, realized the function that the content that FM on the portable terminal receives is recorded into the MP3 format file and preserved.

For solving the problems of the technologies described above, technical scheme of the present invention comprises following several steps:

FM records into the method for mp3 file on a kind of portable terminal, it is characterized in that this method may further comprise the steps: (as Fig. 1)

A opens FM IC receiving function by BB IC control;

B judges by the judge module of BB IC control store in NOR Flash whether described portable terminal has opened the FM sound-recording function, if change step C; If not, change step D;

C records into the MP3 format file by multimedia processor DSP with FM radio reception content, and is kept among the T Flash;

D continues FM and receives.

FM records into the method for mp3 file on the described portable terminal, it is characterized in that described step C further comprises:

The LINE IN interface of C1 multimedia processor DSP receives the audio analog signals of FM IC;

C2 multimedia processor DSP converts the simulated audio signal that receives digital signal to and puts into its inner FIFO by its inner ADC;

The MP3 encoder of C3 multimedia processor DSP takes out digital signal and carries out the MP3 coding in FIFO;

C4 multimedia processor DSP is saved in encoded data among the T Flash;

C5 repeats C1 to the C4 process, up to the end coding, and generates mp3 file.

FM records into the method for mp3 file on the described portable terminal, it is characterized in that further comprising behind the described step C5:

The described judge module of C6 judges that whether T flash has idle memory space to be used for preserving MP3 recording file among the step C5, if having, changes step C8; If do not have, change step C7;

The C7 computer program is closed the sound-recording function of multimedia processor DSP automatically, changes step D;

C8 is kept at the mp3 file of being recorded among the described T flash.

FM records into the method for mp3 file on the described portable terminal, it is characterized in that further comprising behind the described step D:

Step e is closed the FM receiving function of described portable terminal by BB IC control.

A kind ofly be used to implement the portable terminal of method as mentioned above, as shown in Figure 2, it comprises BB IC, FM IC, has among the NOR Flash of judge module, multimedia processor DSP and the T Flash; Wherein:

This FM IC is used for opening reception or closing FM according to the control of BB IC;

This NOR Flash with judge module is used to judge whether the FM function is opened and judged whether TFlash has idle space, and then selects whether to carry out the FM recording and whether preserve the MP3 recording file;

This multimedia processor DSP is used to receive the audio frequency of FM IC and converts MP3 format to, and mp3 file is stored in T Flash;

This BB IC is used to move the computer program of control aforesaid operations flow process.

By technique scheme, the invention has the beneficial effects as follows:

1, the portable terminal user may miss the FM radio reception content of oneself liking in busier; Perhaps run into the FM content that enjoys a lot, wish to preserve, convenient appreciation more later on.At this moment FM radio reception content being recorded into mp3 file also preserves to get up just can satisfy this demand.Mp3 file has advantages such as tonequality is good, file is little, broadcast is convenient.

2, the present invention accepts the FM voice data by the FM chip, carries out the MP3 coding then, records into the audio file of MP3 format.Like this FM radio reception content on the portable terminal is recorded into mp3 file and also preserved, make things convenient for the user in needs, to listen to the FM recording.

Description of drawings

Fig. 1 is the flow chart of the inventive method.

Fig. 2 is the structural representation of product of the present invention.

Fig. 3 is the flow chart of MP3 coding among the inventive method embodiment one.

Fig. 4 is the structural representation of product embodiments one of the present invention.

Fig. 5 is the structural representation of product embodiments two of the present invention.

Embodiment

Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.

Embodiment one:

The hardware connection layout of the platform motherboard of present embodiment satisfies the requirement of Fig. 4, and present embodiment FM IC selects for use: RDA5800C, and BB IC selects SC6600D for use, and DSP IC selects AIT706 for use, and NORFLASH IC selects K5L2731CAM for use, and T Flash selects SanDisk 512M for use.

The method of implementing the FM recording by said structure comprises following several steps:

1 user opens the FM receiving function by the menu or the shortcut of operating mobile terminal;

2 judge modules that are stored among the K5L2731CAM judge whether described portable terminal has opened the FM sound-recording function, if change step 3; If not, change step 9;

3 beginnings are recorded into the MP3 format file to FM radio reception content;

3.1-3.5 be the detailed step that computer program is realized in the step 3, as Fig. 3:

3.1AIT706LINE the IN interface receives the audio analog signals of FM RDA5800C.

3.2 the simulated audio signal that receives is converted to digital signal and puts into the inner FIFO of AIT706 by the inner ADC of AIT706.

3.3AIT706MP3 encoder takes out digital signal and carries out the MP3 coding in FIFO.

3.4 encoded data is saved in the T Flash card.

3.1 to 3.4 processes of repetition are up to finishing coding.

3.5AIT706MP3 end-of-encode generates mp3 file.

3.1-3.5 flow chart see accompanying drawing 3;

4 described judge modules judge that whether T-flash has idle memory space to be used for preserving MP3 recording file in the step 3, if having, changes step 4.2; If do not have, change step 4.1;

4.1 computer program is closed the sound-recording function of AIT706 automatically, changes step 9;

4.2 sound-recording function continues, and changes step 5;

5 finish this recording;

Whether 6 described portable terminal prompting users need to preserve the mp3 file of being recorded, if the user selects "Yes", change step 7; If the user selects "No", change step 9;

7 mp3 files of being recorded are kept among the described mobile terminal memory T flash;

Whether 8 described portable terminal prompting users continue recording, if the user selects "Yes", change step 4; If the user selects "No", change step 9;

9 continue to listen to FM;

The FM receiving function that 10 users close described portable terminal by the menu or the shortcut of operating mobile terminal.

Embodiment two:

See also Fig. 5, FM IC selects for use among this embodiment: RDA5800C, and BB IC selects SC6600D for use, and DSP IC selects AIT706 for use, and NOR FLASH IC selects K5L2731CAM for use, and T Flash selects SanDisk 512M for use.Wherein:

This RDA5800C is used for opening reception or closing FM according to the control of SC6600D;

This K5L2731CAM with judge module is used to judge whether the FM function is opened and judged whether SanDisk 512M has idle space, and then selects whether to carry out the FM recording and whether preserve the MP3 recording file;

AIT706 is used to receive the audio frequency of RDA5800C and converts MP3 format to, and mp3 file is stored among the SanDisk 512M;

This SC6600D is used to move the computer program of control aforesaid operations flow process.

The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.

Claims (5)

1, FM records into the method for mp3 file on a kind of portable terminal, it is characterized in that this method may further comprise the steps:

A opens FM IC receiving function by BB IC control;

B judges by the judge module of BB IC control store in NOR Flash whether described portable terminal has opened the FM sound-recording function, if change step C; If not, change step D;

C records into the MP3 format file by multimedia processor DSP with FM radio reception content, and is kept among the T Flash;

D continues FM and receives.

2, FM records into the method for mp3 file on the portable terminal according to claim 1, it is characterized in that described step C further comprises:

The LINE IN interface of C1 multimedia processor DSP receives the audio analog signals of FM IC;

C2 multimedia processor DSP converts the simulated audio signal that receives digital signal to and puts into its inner FIFO by its inner ADC;

The MP3 encoder of C3 multimedia processor DSP takes out digital signal and carries out the MP3 coding in FIFO;

C4 multimedia processor DSP is saved in encoded data among the T Flash;

C5 repeats C1 to the C4 process, up to the end coding, and generates mp3 file.

3, FM records into the method for mp3 file on the portable terminal according to claim 2, it is characterized in that further comprising behind the described step C5:

The described judge module of C6 judges that whether T flash has idle memory space to be used for preserving MP3 recording file among the step C5, if having, changes step C8; If do not have, change step C7;

The C7 computer program is closed the sound-recording function of multimedia processor DSP automatically, changes step D;

C8 is kept at the mp3 file of being recorded among the described T flash.

4, record into the method for mp3 file according to FM on claim 1 or the 2 or 3 described portable terminals, it is characterized in that further comprising behind the described step D:

Step e is closed the FM receiving function of described portable terminal by BB IC control.

5, a kind of portable terminal that is used to implement as method as described in claim 1 or 2 or 3 or 4 is characterized in that it comprises BB IC, FM IC, has NOR Flash, multimedia processor DSP and the T Flash of judge module; Wherein:

This FM IC is used for opening reception or closing FM according to the control of BB IC;

This NOR Flash with judge module is used to judge whether the FM function is opened and judged whether TFlash has idle space, and then selects whether to carry out the FM recording and whether preserve the MP3 recording file;

This multimedia processor DSP is used to receive the audio frequency of FM IC and converts MP3 format to, and mp3 file is stored among the T Flash;

This BB IC is used to move the computer program of control aforesaid operations flow process.

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