CN2765252Y - A portable media player - Google Patents
A portable media player Download PDFInfo
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- CN2765252Y CN2765252Y CN 200420112398 CN200420112398U CN2765252Y CN 2765252 Y CN2765252 Y CN 2765252Y CN 200420112398 CN200420112398 CN 200420112398 CN 200420112398 U CN200420112398 U CN 200420112398U CN 2765252 Y CN2765252 Y CN 2765252Y
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- module
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- audio
- media player
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Abstract
The utility model discloses a portable media player. The utility model comprises a key module, a central control module, a connecting module, an audio processing module and a playing module, wherein the key module is used for sending control signals to the central control module, the central control module is used for sending corresponding processing commands to the connecting module according to the control signals sent from the key module, the connecting module is used for sending out the processing commands sent from the central control module, carrying out conversion on received digital audio signals and sending the digital audio signals to the audio processing module, the audio processing module is used for converting the signals sent from the connecting module into sound signals and sending the sound signals to the playing module, and the playing module is used for playing the sound signals sent from the audio processing module. The utility model solves the problems of not easily realized good effects of tone quality, high cost, etc. existing in the present media players. The portable media player provided by the utility model does not require special storage media and coding-decoding chips aiming at digital stream media. The manufacture cost is reduced while the play of stream media of various formats is realized.
Description
Technical field
The utility model relates to the media play technical field, relates to a kind of portable electronic device or rather.
Background technology
Media player is because the instant playing function that it had has been subjected to people's welcome more and more.Wherein, portable electronic device becomes very common carry-on articles in people's life gradually because it is easy to carry.
Present portable electronic device mainly is to play independently hardware portable electronic device of current popular such as mp3, CD, MD, WMA, RM and audio frequency media form.Common hardware portable electronic device has MP3, CD Player, MD player etc. on the market, and the audio format that these media players are supported is comparatively limited.
For the MP3 media player, its audio format of supporting is generally two kinds of mp3 and wma, is subjected to the restriction of these two kinds of audio formats, and the acoustical quality of MP3 media player is not fine.In addition, the MP3 media player needs jumbo storage medium, such as flash or hard disk etc., also needs the mp3 codec chip, and this makes that all the cost of MP3 media player is higher.
For CD and MD player, though can guarantee audio frequency effect preferably, but have the bigger shortcoming of the shared storage space of single, in addition, CD and MD player have adopted complicated technology in case CD vibrates, and this makes that the volume of this player is bigger, and the price comparison costliness.In addition, because the restriction of storage medium, this media player this basic function of not recording.
The utility model content
In view of this, subject matter to be solved in the utility model is to provide a kind of portable electronic device, so that media player can freely be selected the source of sound form of broadcast, and reduces the cost of media player.
For addressing the above problem, the technical solution of the utility model is achieved in that a kind of portable electronic device, and this player comprises with lower module:
Key-press module is used for transmitting control signal to central control module;
Central control module, the control signal that is used for sending according to key-press module sends corresponding processing command to link block;
Link block is used for the processing command that central control module sends is sent, and audio processing modules is changed and sent to the digital audio and video signals that receives;
Audio processing modules, the conversion of signals that is used for link block is sent is a voice signal, and sends to playing module;
Playing module is used for the voice signal that the audio plays processing module is sent.
Be provided with between described link block and the information processing centre that has audio-frequency information and be connected;
Described information processing centre receives the processing command that link block sends, and self is handled the digital audio and video signals that obtains according to processing command sends to link block.
Described information processing centre is computing machine or handheld device.
Described media player further comprises the microphone that is connected with audio processing modules;
Described audio processing modules is further used for the acoustic information that microphone sends is converted to sound signal, and described sound signal is sent to information processing centre by link block, and described information processing centre preserves the sound signal that link block is sent.
Described media player further comprises: the display module that is used to show the song relevant information;
The song relevant information that described link block is further used for receiving sends to central control module; Central control module is further used for showing the song relevant information of being received by display module.
Described key-press module comprises initiating key and stop key at least.
Be connected by special line, infrared ray or WLL between described link block and the information processing centre.
Be connected by bluetooth between described link block and the information processing centre;
Described link block is connected transmission command with information processing centre by asynchronous data, by towards synchronous connection SCO voice link transmitting audio signal; Link block also is connected with central control module by the HCI interface, is connected with audio processing modules by pcm interface.
Portable electronic device provided by the utility model mutual by with information processing centre, play-over the audio-frequency information that information processing centre sends, the storage medium that is specifically designed to audio information need be set in player, correspondingly also just save various digital stream medium codec chips, thereby greatly reduced the manufacturing cost of media player.
Because the information processing centre that the utility model utilized can handle present various stream media format neatly, therefore not only can allow the user can more freely select the source file of different acoustical qualities by the utility model scheme, more enrich user's useful source file.
Portable electronic device provided by the utility model also provides sound-recording function, this function is to utilize information processing centre to realize equally, because the memory space of information processing centre is often very big, therefore the user can not be subjected to the restriction of storage space when recording, for the user provides better service.
In addition, portable electronic device provided by the utility model can also further be provided with display module, central control module in the player provides information such as title of the song, the lyrics by this display module, thereby further realized making the user can obtain more information to the demonstration of title of the song, the lyrics etc.
Description of drawings
Fig. 1 is the structural representation of the utility model scheme;
Fig. 2 is based on the structural representation of bluetooth in the utility model;
Fig. 3 is the structural representation after increasing display module and microphone on Fig. 2 basis.
Embodiment
Main thought of the present utility model is: being connected between portable electronic device and information processing centre is set, by information processing centre the audio stream medium are decoded, and transfer digital audio and video signals to, by set connection this digital audio and video signals is sent to portable electronic device afterwards, the audio-frequency informations such as digital audio and video signals playing back music that portable electronic device sends according to information processing centre.
Wherein, portable electronic device comprises key-press module 101, central control module 102, link block 103, audio processing modules 104 and playing module 105 as shown in Figure 1 at least.Central control module 102 generates order accordingly after receiving the key information that key-press module 101 sends, and sends by link block 103; Link block 103 sends it to audio processing modules 104 after receiving digital audio and video signals, audio processing modules 104 is converted to corresponding voice signal with this digital audio and video signals, and sends to playing module 105 and carry out playback process.Realize that with portable electronic device the information processing centre of information interaction can be the electronic equipment that computing machine, mobile phone etc. can canned datas, being connected between portable electronic device and the information processing centre can be wired connection, also can be wireless connections, wireless connections can be used bluetooth, infrared, WLL etc.
No matter which kind of connected mode what adopt is, which kind of equipment information processing centre is, therefore portable electronic device is similar substantially at the detailed process of signal Processing, is computing machine below with the information processing centre and adopts Bluetooth technology to be connected to example to describe.
Based on the portable electronic device of bluetooth as shown in Figure 2, comprise at least with lower module:
Key-press module 201 is used for transmitting control signal to central control module 202 according to user's input information.At least should comprise play button and stop key in the set key-press module 201.
Central control module 202, the control signal that is used for sending according to key-press module 201 sends corresponding processing command to bluetooth module 203.
Link block based on bluetooth is a bluetooth module 203, is used for the processing command that central control module 202 sends is sent; And receive the extraneous Bluetooth signal that sends, received Bluetooth signal is converted to corresponding bluetooth coding, and this bluetooth coding is sent to audio processing modules 204.
Audio processing modules 204, the bluetooth code conversion that is used for receiving is a voice signal, and plays out by playing module 205.
Playing module 205 is used for the voice signal that audio plays processing module 204 is sent.
For Fig. 2, key-press module 201 wherein specifically is connected with central control module 202 by Keyrow interface and Keycol interface.Central control module 202 specifically can be selected bluetooth module 203 by the address selection interface SDA of I2C bus in the bluetooth module 203, clock interface SCLK by I2C bus in the bluetooth module 203 carries out clock control, and sends data by the RXD data line in the bluetooth module 203 to bluetooth module 203.Bluetooth module 203 sends data by the PCMOUT interface to the D_IN of audio processing modules 204 interface, send synchronizing signal by PCMSYNC to the SYNC of audio processing modules 204 interface,, and undertaken alternately to the CLK of audio processing modules 204 interface tranmitting data register signal by PCMCLK by acknowledge signal line TXD and central control module 202.204 of audio processing modules are propagated voice signals by EARP and EARN interface to playing module 205.
Based on annexation shown in Figure 2, describe showing process in fact below.Need to prove,, wherein be provided with the bluetooth module that is used for Bluetooth communication equally,, this bluetooth module is become the processing enter bluetooth module for ease of difference for the bluetooth information processing centre.The specific implementation step is:
Steps A, portable electronic device are after opening, whether the search periphery exists the bluetooth information processing centre, after determining there is the bluetooth information processing centre, carry out pair verification with it, and set up asynchronous data in checking pairing back with this bluetooth information processing centre and be connected (ACL).
Listed files to be played and initial played file are selected by step B, bluetooth information processing centre after connecting with portable electronic device.
In this step, the bluetooth information processing centre can be after connecting, directly with the preceding listed files of once playing as current listed files to be played, and file that will preceding once last broadcast is as initial played file.Certainly, processing enter can not deal with in this step yet, but after receiving the beginning play command of portable electronic device, selects listed files to be played and initial played file again.
After the play button of step C, bluetooth portable media player was pressed, the central control module in the player responded this and interrupts, and sends the order that connects to bluetooth module.
Central control module specifically can be to send order by the HCI interface to bluetooth module.
Step D, bluetooth module send to the bluetooth information processing centre with this order that connects by the ACL link of setting up in the steps A, and set up its with the bluetooth information processing centre between the voice link towards synchronous connection the (SCO).
Step e, bluetooth information processing centre are after receiving the order that connects, the selected played file of step B is carried out decoding processing, the sound signal that decoding is obtained sends to the processing enter bluetooth module of self by the HCI interface afterwards, the processing enter bluetooth module carries out the encoding process relevant with bluetooth to the sound signal that decoding obtains, and by the SCO voice link bluetooth coded signal that processing obtains is sent to the bluetooth portable media player afterwards.
If do not select played file among the step B, then the bluetooth information processing centre should be after receiving this order that connects, and at first selects to be used for the listed files of current broadcast, afterwards again to the processing such as decode of the played file in this document tabulation.
In addition, for ease of Bluetooth communication, the coded audio information that the bluetooth information processing centre can obtain decoding is CVSD sound signal and other data-signal.
Bluetooth module in step F, the bluetooth portable media player is after receiving the bluetooth coded signal that information processing centre sends, by bluetooth module this bluetooth coded signal is converted to the corresponding interface coding, afterwards this interface coding is sent to audio processing modules, finished the conversion of digital audio and video signals and voice signal again by audio processing modules, audio processing modules plays back voice signal again by playing module.
Bluetooth module specifically can be by self pcm interface the bluetooth coded signal to be converted to pcm encoder, and by pcm interface this pcm encoder is sent to audio processing modules.
Can realize the music of bluetooth portable media player by said process.
In addition, if the bluetooth portable media player need stop playing back music, then after pressing stop key, central control module in the player responds this interruption, send the order that discharges connection to bluetooth module, bluetooth module sends to the bluetooth information processing centre with this release command by the ACL link; The bluetooth information processing centre stops played file after receiving the release command that the ACL link sends, and finishes the release of SCO voice link.Wherein, the release bind command that central control module sent can be undertaken by the HCI interface equally.
According to user's needs, can also in portable electronic device, be provided with such as functions such as F.F., rewind down, choosing songs, correspondingly, need in key-press module, be provided with and these function corresponding key.After being provided with these buttons, if certain button is pressed, then the central processing unit in the bluetooth portable media player can respond this interruption equally, and afterwards processing and aforementioned processing are similar.The bluetooth information processing centre can carry out corresponding processing after receiving corresponding order, the coded message after will handling then sends to the bluetooth portable media player.Here, concrete processing procedure and aforementioned processing process that the bluetooth information processing centre is performed are similar, only, therefore directly use this voice link to get final product owing to the SCO voice link of having set up before between bluetooth information processing centre and the bluetooth portable media player.
Can also be for this bluetooth portable media player be provided with display module, such as LCD display is set, to show information such as the title of the song play, the lyrics by this LCD display.Certainly, information such as the lyrics, title of the song can send to bluetooth module in the bluetooth portable media player by the ACL link by the bluetooth information processing centre, bluetooth module then sends to central control module with this information, by central control module information such as the lyrics, title of the song is presented on the LCD display.
Bluetooth portable media player provided by the utility model can also further be provided with a microphone on the basis of the above, and this microphone is connected with audio processing modules, and the acoustic information that the user is imported by microphone sends to audio processing modules; Audio processing modules is converted to sound signal with this acoustic information, and by pcm interface this sound signal is sent to bluetooth module; Bluetooth module then is converted to this sound signal corresponding C VSD signal or other data-signal, and sends it to the bluetooth information processing centre.The bluetooth information processing centre then receives this signal, is the audio file of certain audio format with this conversion of signals, and preserves this audio file.
Increased display module and microphone portable electronic device structure as shown in Figure 3.Wherein, central processing module 202 is by the data line LCD_IO[17..0 of LCD] to display module 301 transmitting graphics datas, and select control line LCD_CS_N, write and can make control line LCD_WE_N and can make control line LCD_CE_N control to display module 301 transmission data by the LCD sheet.Microphone 302 transmits voice signals by MICP in the audio processing modules 204 and MICN to audio processing modules 204,204 of audio processing modules send to the signal after the conversion PCMIN interface of bluetooth module 203 by the D_OUT interface after voice signal is changed.The signal that 203 pairs of bluetooth modules are received sends to the bluetooth information processing centre after doing corresponding conversion again, handles and preserve the sound signal of receiving by the bluetooth information processing centre.
Above-mentioned the bluetooth connected mode has been done detailed explanation.If adopt other connected mode, handle similarly then accordingly, just connect differently, do not repeat them here.
The above only is preferred embodiment of the present utility model, not in order to limit protection domain of the present utility model.
Claims (8)
1, a kind of portable electronic device is characterized in that, this player comprises with lower module:
Key-press module is used for transmitting control signal to central control module;
Central control module, the control signal that is used for sending according to key-press module sends corresponding processing command to link block;
Link block is used for the processing command that central control module sends is sent, and audio processing modules is changed and sent to the digital audio and video signals that receives;
Audio processing modules, the conversion of signals that is used for link block is sent is a voice signal, and sends to playing module;
Playing module is used for the voice signal that the audio plays processing module is sent.
2, media player according to claim 1 is characterized in that, is provided with between described link block and the information processing centre that has audio-frequency information to be connected;
Described information processing centre receives the processing command that link block sends, and self is handled the digital audio and video signals that obtains according to processing command sends to link block.
3, media player according to claim 2 is characterized in that, described information processing centre is computing machine or handheld device.
4, media player according to claim 2 is characterized in that, described media player further comprises the microphone that is connected with audio processing modules;
Described audio processing modules is further used for the acoustic information that microphone sends is converted to sound signal, and described sound signal is sent to information processing centre by link block, and described information processing centre preserves the sound signal that link block is sent.
5, media player according to claim 1 is characterized in that, described media player further comprises: the display module that is used to show the song relevant information;
The song relevant information that described link block is further used for receiving sends to central control module; Central control module is further used for showing the song relevant information of being received by display module.
6, media player according to claim 1 is characterized in that, described key-press module comprises initiating key and stop key at least.
7, media player according to claim 2 is characterized in that, is connected by special line, infrared ray or WLL between described link block and the information processing centre.
8, media player according to claim 2 is characterized in that, is connected by bluetooth between described link block and the information processing centre;
Described link block is connected transmission command with information processing centre by asynchronous data, by towards synchronous connection SCO voice link transmitting audio signal; Link block also is connected with central control module by the HCI interface, is connected with audio processing modules by pcm interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112398 CN2765252Y (en) | 2004-11-02 | 2004-11-02 | A portable media player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112398 CN2765252Y (en) | 2004-11-02 | 2004-11-02 | A portable media player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765252Y true CN2765252Y (en) | 2006-03-15 |
Family
ID=36168169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420112398 Expired - Lifetime CN2765252Y (en) | 2004-11-02 | 2004-11-02 | A portable media player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765252Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792297A (en) * | 2016-12-15 | 2017-05-31 | 广东技术师范学院 | White noise Play System and portable audio |
-
2004
- 2004-11-02 CN CN 200420112398 patent/CN2765252Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792297A (en) * | 2016-12-15 | 2017-05-31 | 广东技术师范学院 | White noise Play System and portable audio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141102 Granted publication date: 20060315 |