CN102340598A - Mobile terminal with broadcast music capturing function and music capturing method thereof - Google Patents
Mobile terminal with broadcast music capturing function and music capturing method thereof Download PDFInfo
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- CN102340598A CN102340598A CN201110298644XA CN201110298644A CN102340598A CN 102340598 A CN102340598 A CN 102340598A CN 201110298644X A CN201110298644X A CN 201110298644XA CN 201110298644 A CN201110298644 A CN 201110298644A CN 102340598 A CN102340598 A CN 102340598A
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Abstract
The invention discloses a mobile terminal with a broadcast music capturing function and a music capturing method thereof. The mobile terminal comprises a housing, a mainboard, a microprocessing controller, an ROM (Read Only Memory), an RAM (Random Access Memory), a horn, a broadcast antenna and a frequency modulation broadcast chip, wherein the microprocessing controller, the ROM, the RAM, the horn and the frequency modulation broadcast chip are arranged on the mainboard, the ROM, the RAM and the horn are connected with the microprocessing controller through a circuit; and the input end of the frequency modulation broadcast chip is connected with the broadcast antenna, the frequency modulation broadcast chip is provided with a first output end and a second output end, the first output end is connected with the horn, the second output end is connected with the input end of an analog-to-digital conversion circuit, and the output end of the analog-to-digital conversion is connected with the RAM. A user can download music by using the mobile terminal, and realizes the purpose of repeatedly licensing the interesting music.
Description
Technical field
The present invention relates to the telecommunications field, relate in particular to a kind of implementation method that has the portable terminal of broadcast music capture function and from broadcasting, catch music.
Background technology
Portable terminal of the prior art much all has the function that receives FM broadcasting; The mode of its realization is for being provided with a FM radio machine chip on cell phone mainboard; Like grace intelligence Pu semiconductor (NXP) model is the FM radio machine chip of TEA5767; Core section laboratory (Silicon Labs) model is the whole CMOS FM radio machine chip of Si470x, and sharp enlightening section model is the broadcast receiver chip of RDA5800 or RDA5802.The portable terminal that has the function that receives FM broadcasting; The user can directly receive FM broadcasting with mobile phone, on the working road, when perhaps having a rest in the travelling way; Can take out mobile phone at any time listens to; Need not the extra FM broadcasting equipment that carries, therefore, this portable terminal provides great convenience to the user again.But common this mobile phone all has a defective, when the user converses with mobile phone, can't broadcast listening, and tend to miss some and like or important programme content.
In order to solve this defective; Patent Office of Intellectual Property in China office discloses a kind of FM receiver section directory broadcasting method and mobile phone based on mobile phone on 01 05th, 2011; Its publication number is 101937692A, and application number is 201010236945.5, and the applying date is 2010-07-23; This method comprises: A, start and FM receiver is in running order, and mobile phone gets into holding state; B, when need are conversed, get into corresponding talking state according to operation, FM receiver continues to receive real-time FM broadcasting program simultaneously, and real-time FM broadcasting program data is stored automatically; Behind C, the end of conversation, the real-time FM broadcasting program data of storage is play as required.This invention can be implemented in the function that can store radio programs in the conversation automatically, lets the user can not miss the partial programme content because of conversation, provides users with the convenient.But; Generally, the user downloads broadcasted content, only needs to download musical portions wherein; And other language and noise section need not to download; Foregoing invention can not be made screening to programme content, can not musical portions and language and noise section be made a distinction, and can't satisfy the purpose of user's down-load music part.
Summary of the invention
The purpose of this invention is to provide a kind of portable terminal and this portable terminal and from FM broadcasting, carry out the method that music is caught with broadcast music capture function.
Portable terminal with broadcast music capture function provided by the present invention comprises housing, mainboard, microprocessor controller, ROM, RAM, loudspeaker, broadcast antenna and FM broadcasting chip; Said microprocessor controller, ROM, RAM, loudspeaker and FM broadcasting chip all are arranged on the said mainboard, and said ROM, RAM and loudspeaker all are connected with said microprocessor controller circuit; The input of said FM broadcasting chip is connected with said broadcast antenna; Said FM broadcasting chip is provided with first output and second output; Said first output is connected with said loudspeaker; Said second output is connected with the input of an analog to digital conversion circuit, and the output of analog-digital conversion circuit as described is connected with said RAM.
Method of from FM broadcasting, carrying out the music seizure provided by the present invention comprises successively:
Step 1) receives analog fm signal;
Step 2) the FM broadcasting chip sends to analog to digital conversion circuit with the analog fm signal that receives and carries out AD conversion;
Step 3) analyzes the broadcast spectrum of FM signal;
Step 4) is distinguished musical portions and noise part according to broadcast spectrum, and preserves musical portions.
Portable terminal and music method for catching thereof with broadcast music capture function provided by the present invention; When having solved the content in the mobile terminal downloads FM broadcasting; The defective that can't music and other noises in the broadcasting be distinguished mutually; Mode through frequency spectrum contrast and analysis is caught the music in the broadcasted content and be kept among the ROM, user's this method down-load music capable of using, and the purpose of the music of oneself liking is listened in realization repeatedly.
Description of drawings
Fig. 1 is the mobile terminal circuit structural representation with broadcast music capture function described in the embodiment of the invention one;
Fig. 2 is for carrying out the step sketch map of the method that music catches from FM broadcasting described in the embodiment of the invention two;
Fig. 3 is the sketch map of differentiation musical portions described in Fig. 2 and noise part steps.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
As shown in Figure 1, a kind of portable terminal with broadcast music capture function comprises housing, mainboard, microprocessor controller 1, ROM3, RAM4, loudspeaker 2, broadcast antenna 6 and FM broadcasting chip 5; Said microprocessor controller 1, ROM3, RAM4, loudspeaker 2 and FM broadcasting chip 5 all are arranged on the said mainboard, and said ROM3, RAM4 and loudspeaker 2 all are connected with said microprocessor controller 1 circuit; The input of said FM broadcasting chip 5 is connected with said broadcast antenna 6, it will be understood by those skilled in the art that said antenna 6 can be special-purpose FM broadcasting antenna 6, also can utilize the antenna 6 of earphone cord as FM broadcasting.Said FM broadcasting chip 5 is provided with first output and second output, and said first output is connected with said loudspeaker 2, is used for transmitting analog fm signal to loudspeaker 2; Said second output is connected with the input of an analog to digital conversion circuit 7, and the output of analog-digital conversion circuit as described 7 is connected with said RAM4.Analog-digital conversion circuit as described 7 is used for the analog fm signal of said FM broadcasting chip 5 outputs is carried out the AD conversion, obtains digital frequency-modulation signal and send to said RAM4 to preserve.
Said RAM4 can be PSRAM or UtRAM; Said ROM3 can be NOR FLASH or NAND FLASH.
Embodiment two
It will be understood by those skilled in the art that in the acoustics system, comprise musical sound and noise, so-called musical sound be meant the pronunciation object vibrate regularly and produce have a fixedly sound of pitch.Like piano, violin, urheen etc. all is the musical instrument that can send musical sound.Musical sound is employed main, the most basic material in the music, and the melody in the music, harmony etc. constitute by musical sound.So-called noise is meant the sound that does not have certain altitude, and its vibration is irregular disorderly and unsystematic again.According to the difference of above-mentioned musical sound and noise, just can the music in the FM broadcasting be distinguished with noise mutually, thereby realize from FM broadcasting, catching music.
As shown in Figure 2, present embodiment two is exactly to adopt above-mentioned principle, utilizes a kind of described portable terminal of embodiment, carries out the method that music is caught from FM broadcasting, comprises successively:
Step 1) receives analog fm signal; Utilize FM broadcasting chip and broadcast antenna described in the embodiment one; Can realize reception to FM signal; The FM signal that receive this moment is an analog signal; Need this signal is carried out the AD conversion, obtain digital frequency-modulation signal, other baseband chips of microprocessor controller and portable terminal just can be handled said FM signal.
Step 2) the FM broadcasting chip sends to analog to digital conversion circuit with the analog fm signal that receives and carries out AD conversion; Meanwhile, the FM broadcasting chip can send to said loudspeaker with the analog fm signal that receives and plays.
Step 3) analyzes the broadcast spectrum of FM signal;
Step 4) is distinguished musical portions and noise part according to broadcast spectrum, and preserves musical portions.
It will be understood by those skilled in the art that said portable terminal also can be designed with switching device shifter, under first state and second state, switch according to user's demand.Said first state is meant above-mentioned steps 1) can the analog fm signal that receive be sent to the step that said loudspeaker play to step 4) and said FM broadcasting chip and carry out simultaneously; Said state 2 is meant is carrying out above-mentioned steps 1) during to step 4), not carrying out said FM broadcasting chip can send to the step that said loudspeaker are play with the analog fm signal that receives, and promptly the user is at this state broadcast listening not.
The step that receives analog fm signal in said step 1) also comprises the steps: in said ROM, to preserve musical sound frequency spectrum and likelihood threshold value before; Said musical sound frequency spectrum is that the music frequency spectrum of some, different tunes is analyzed synthetic and obtained, and its process is the known technology of music frequency spectrum analysis field, no longer tired here stating.Said likelihood threshold value is the levels of precision that is used for confirming to catch music; Said likelihood threshold value is big more; It is accurate more that music is caught, and it is just more little the probability that mistake catches to occur, this likelihood threshold value can according to user's demand or production firm be designed to be provided with originally.
Said step 3) analyzes the broadcast spectrum of FM signal, comprises successively:
Step 31) said digital frequency-modulation signal is kept among the RAM (RAM-RANDOM ACCESS MEMORY, random access memory); It will be understood by those skilled in the art that the content of being preserved among the said RAM can arbitrarily take out or deposit in as required, and the location independent of the speed of access and memory cell.
Step 32) said microprocessor controller reads the digital frequency-modulation signal among the RAM, analyzes and the corresponding broadcast spectrum of this digital frequency-modulation signal, and said broadcast spectrum sent among the RAM preserves;
As shown in Figure 3, said step 4) is distinguished musical portions and noise part according to broadcast spectrum, and preserves musical portions, comprises successively:
Step 41) microprocessor controller reads the musical sound frequency spectrum among the said ROM (Read-Only Memory, read-only memory);
Step 42) microprocessor controller reads the broadcast spectrum among the said RAM;
Step 43) microprocessor controller is compared said RAM frequency spectrum and said musical sound frequency spectrum, draws the likelihood of the two;
Step 44) reads the likelihood threshold value;
Step 45) said likelihood and said likelihood threshold value are compared, when said likelihood is greater than or equal to said likelihood threshold value, the digital frequency modulation broadcast signal of correspondence is kept among the ROM; When said likelihood during, the digital frequency modulation broadcast signal of correspondence is deleted from said RAM less than said likelihood threshold value.Like this, just realized utilizing the method for spectrum analysis that the music in the FM signal is distinguished with noise mutually, and automatically music has been kept in the portable terminal, the user carries out play operation to portable terminal just can hear the music of oneself liking repeatedly.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (7)
1. the portable terminal with broadcast music capture function comprises housing, mainboard, microprocessor controller (1), ROM (3), RAM (4), loudspeaker (2), broadcast antenna (6) and FM broadcasting chip (5); Said microprocessor controller (1), ROM (3), RAM (4), loudspeaker (2) and FM broadcasting chip (5) all are arranged on the said mainboard, and said ROM (3), RAM (4) and loudspeaker (2) all are connected with said microprocessor controller (1) circuit; The input of said FM broadcasting chip (5) is connected with said broadcast antenna (6); It is characterized in that: said FM broadcasting chip (5) is provided with first output and second output; Said first output is connected with said loudspeaker (2); Said second output is connected with the input of an analog to digital conversion circuit (7), and the output of analog-digital conversion circuit as described (7) is connected with said RAM (4).
2. the portable terminal with broadcast music capture function as claimed in claim 1 is characterized in that: said RAM (4) is PSRAM or UtRAM.
3. the portable terminal with broadcast music capture function as claimed in claim 1 is characterized in that: said ROM (3) is NOR FLASH or NAND FLASH.
4. a method of carrying out the music seizure from FM broadcasting is characterized in that, comprises successively:
Step 1) receives analog fm signal;
Step 2) the FM broadcasting chip sends to analog to digital conversion circuit with the analog fm signal that receives and carries out AD conversion;
Step 3) analyzes the broadcast spectrum of FM signal;
Step 4) is distinguished musical portions and noise part according to broadcast spectrum, and preserves musical portions.
5. method of carrying out the music seizure from FM broadcasting as claimed in claim 4 is characterized in that, before said step 1), also comprises the steps:
In said ROM, preserve musical sound frequency spectrum and likelihood threshold value.
6. method of carrying out the music seizure from FM broadcasting as claimed in claim 5 is characterized in that said step 3) comprises successively:
Step 31) said digital frequency-modulation signal is kept among the RAM;
Step 32) said microprocessor controller reads the digital frequency-modulation signal among the RAM, analyzes and the corresponding broadcast spectrum of this digital frequency-modulation signal, and said broadcast spectrum sent among the RAM preserves.
7. method of carrying out the music seizure from FM broadcasting as claimed in claim 6 is characterized in that said step 4) comprises successively:
Step 41) microprocessor controller reads the musical sound frequency spectrum among the said ROM;
Step 42) microprocessor controller reads the broadcast spectrum among the said RAM;
Step 43) microprocessor controller is compared said RAM frequency spectrum and said musical sound frequency spectrum, draws the likelihood of the two;
Step 44) reads the likelihood threshold value;
Step 45) said likelihood and said likelihood threshold value are compared, when said likelihood is greater than or equal to said likelihood threshold value, the digital frequency modulation broadcast signal of correspondence is kept among the ROM; When said likelihood during, the digital frequency modulation broadcast signal of correspondence is deleted from said RAM less than said likelihood threshold value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110298644XA CN102340598A (en) | 2011-09-28 | 2011-09-28 | Mobile terminal with broadcast music capturing function and music capturing method thereof |
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| CN201110298644XA CN102340598A (en) | 2011-09-28 | 2011-09-28 | Mobile terminal with broadcast music capturing function and music capturing method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689372A (en) * | 2001-09-29 | 2005-10-26 | 格伦迪希多媒体公司 | Method and device for selecting a sound algorithm |
| CN101025985A (en) * | 2006-02-16 | 2007-08-29 | 索尼株式会社 | Musical piece extraction program, apparatus, and method |
| US20080019541A1 (en) * | 2006-07-21 | 2008-01-24 | Sony Corporation | Data recording apparatus, data recording method, and data recording program |
| CN101937692A (en) * | 2010-07-23 | 2011-01-05 | 惠州Tcl移动通信有限公司 | FM (frequency modulation) receiver program recording and broadcasting method based on mobile phone and mobile phone |
| CN202268940U (en) * | 2011-09-28 | 2012-06-06 | 上海摩软通讯技术有限公司 | Mobile terminal with broadcast music catching function |
-
2011
- 2011-09-28 CN CN201110298644XA patent/CN102340598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689372A (en) * | 2001-09-29 | 2005-10-26 | 格伦迪希多媒体公司 | Method and device for selecting a sound algorithm |
| CN101025985A (en) * | 2006-02-16 | 2007-08-29 | 索尼株式会社 | Musical piece extraction program, apparatus, and method |
| US20080019541A1 (en) * | 2006-07-21 | 2008-01-24 | Sony Corporation | Data recording apparatus, data recording method, and data recording program |
| CN101937692A (en) * | 2010-07-23 | 2011-01-05 | 惠州Tcl移动通信有限公司 | FM (frequency modulation) receiver program recording and broadcasting method based on mobile phone and mobile phone |
| CN202268940U (en) * | 2011-09-28 | 2012-06-06 | 上海摩软通讯技术有限公司 | Mobile terminal with broadcast music catching function |
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Application publication date: 20120201 |