WO2011147145A1

WO2011147145A1 - Device, method and system for outputting network streaming media audio information

Info

Publication number: WO2011147145A1
Application number: PCT/CN2010/077116
Authority: WO
Inventors: 张雷
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-05-28
Filing date: 2010-09-19
Publication date: 2011-12-01
Also published as: CN101854184A

Abstract

The present invention discloses a device, method and system for outputting network streaming media audio information, wherein the output device includes: a data card module, used for downloading the audio information through a wireless network according to the preset download parameter; a frequency modulation and transmission module, used for performing frequency modulation on the audio information downloaded by the data card module and transmitting it. By the present invention, the short-distance and medium-distance frequency modulation (FM) real-time wireless transmission of the network audio resources is enabled.

Description

Output device, method and system for network streaming audio information

The present invention relates to the field of communications, and in particular, to an apparatus, method and system for outputting network streaming audio information. Background technique

With the continuous development of mobile communication technology and universal serial bus (USB) data card technology, the stability of the data connection of the data card in the middle and low speed movement has been greatly improved, and the data card can also be guaranteed. The stability of high speed downloads.

However, data transmission between data cards and other audio equipment, such as car audio, is not yet mature. If you want to listen to the audio received by the data card through the car audio, it is difficult or complicated. Summary of the invention

In order to solve the above problems, the main object of the present invention is to provide an apparatus, method and system for outputting network streaming audio information, wherein:

The device for outputting network streaming audio information according to the embodiment of the present invention includes: a data card module, configured to download audio information through a wireless network according to a preset download parameter; and an FM transmitting module, configured to perform audio information downloaded by the data card module. FM transmission.

The data card module further includes: a downloading module, configured to download audio encoded audio information and/or audio and video encoded audio information through a wireless network according to preset download parameters; and a decoding module, configured to perform audio encoded audio information. Decoding, obtaining the first digital audio signal and/or separating and decoding the audio and video encoded audio information to obtain a second digital audio signal.

Wherein, between the data card module and the FM transmitting module, the device further comprises: digital to analog conversion And a module, configured to convert the first digital audio signal and/or the second digital audio signal into an analog audio signal, respectively.

The FM transmitting module is further configured to perform an FM transmission of the analog audio signal according to a preset transmission parameter.

Further, the data card module further includes: a parameter storage module, configured to save preset download parameters and transmission parameters.

The system for outputting network streaming audio information according to the embodiment of the present invention includes: a data card module, configured to download audio information through a wireless network according to a preset download parameter; and an FM transmitting module, configured to perform audio information downloaded by the data card module. FM transmission; FM receiving device for receiving and playing audio information.

The frequency of the FM transmitting module and the FM receiving device are set to be consistent.

The method for outputting network streaming audio information according to an embodiment of the present invention includes: downloading audio information through a wireless network according to a preset download parameter; and transmitting the audio information downloaded through the wireless network.

The downloading the audio information through the wireless network according to the preset download parameter further includes: downloading the audio encoded audio information and/or the audio and video encoded audio information through the wireless network according to the preset download parameter; and downloading the audio encoded audio information. Decoding directly to obtain a first digital audio signal; separating and decoding the downloaded audio and video encoded audio information to obtain a second digital audio signal; respectively converting the first digital audio signal and/or the second digital audio signal into an analog audio signal.

The performing the FM transmission of the downloaded audio information further includes: performing frequency modulation and transmission on the digital-to-analog converted analog audio signal according to the preset transmission parameter.

Compared with the prior art, according to the technical solution of the present invention, the medium-and short-range FM real-time wireless transmission function of the network audio resource is realized, which has high practicability, reduces the cost, and expands the usage scenario of the traditional data card. Enhanced user experience. DRAWINGS

1 is a block diagram showing the structure of an apparatus for outputting streaming audio information of a network according to an embodiment of the present invention;

2 is a block diagram showing a preferred structure of an apparatus for outputting streaming audio information of a network according to an embodiment of the present invention;

3 is a schematic diagram of a working principle of a parameter storage module according to an embodiment of the present invention; FIG. 4 is a structural block diagram of a network streaming media audio information playing system according to an embodiment of the present invention;

5 is a flowchart of a method for outputting network streaming audio information according to an embodiment of the present invention; FIG. 6 is a flowchart of a preferred processing scheme for outputting network streaming audio information according to an embodiment of the present invention;

Figure Ί is a schematic diagram of a parameter storage module interacting with a UI according to an embodiment of the present invention. detailed description

The invention adds a frequency modulation (FM, Frequency Modulation) transmitting module to the wireless communication terminal, so that the audio signal received by the wireless communication terminal through the network can be sent to the audio device for playing by the FM transmitting module.

At present, the mainstream FM short-range transmitting device can achieve a signal-to-noise ratio of up to 68db and a distortion of less than one-thousandth. It can support the FM standard of countries all over the world. Usually, it can work normally with a voltage of 3V. Within the voltage range of USB power supply, Its front area is usually less than 20 square millimeters, which can be conveniently placed inside the traditional data card without excessive increase of the data card volume. Its EMI (Electromagnetic Compatibility) will not cause neighboring stations and other wireless. Communication interference.

The present invention will be further described in detail below with reference to the drawings and specific embodiments.

According to an embodiment of the present invention, an output device for network streaming audio information is provided. 1 is a structural block diagram of an apparatus for outputting network streaming audio information according to an embodiment of the present invention. As shown in FIG. 1, the apparatus includes: a data card module 10, a digital-to-analog conversion module 20, and a frequency modulation transmitting module 30.

The data card module 10 has the function of a wireless USB network card that is connected to a wireless network. The data card module 10 can open a user interface (UI, User Interface) by connecting with a personal computer (PC, Personal Computer), set dial-up networking parameters and download content (download parameters) through the UI, and pass the traditional interface to the data card module. 10 sends the parameters, and the data card module 10 stores the data. After the data card module 10 is connected to the network, the audio information can be downloaded according to the preset download parameters.

Referring to FIG. 2, the data card module 10 further includes: a downloading module 12 and a decoding module 14, wherein the downloading module 12 is configured to download audio encoded audio information and/or audio and video encoded audio information through a wireless network according to preset download parameters. The decoding module 14 is configured to decode the audio encoded audio information, obtain the first digital audio signal, and/or separate and decode the audio and video encoded audio information to obtain a second digital audio signal. It should be noted that the decoding module 14 is a decoding module that supports multiple audio and video decoding formats, and the decoding module can be upgraded by software.

The digital-to-analog conversion module 20 is coupled to the decoding module 14 for converting the first digital audio signal and/or the second digital audio signal decoded by the decoding module 14 into analog audio signals, respectively.

The FM transmitter module (FM transmitter module) 30 is connected to the digital-to-analog converter module 20. The audio information downloaded by the data card module 10 is converted into an analog audio signal by the digital-to-analog conversion module 20, and then modulated by the FM transmitter module 30 according to the preset transmission parameters. Launched.

In addition, as shown in FIG. 2, the data card module 10 further includes a parameter storage module 16 for storing parameters, download parameters (list of network radio addresses or streaming media addresses) required for the preset dial-up networking, and Data information such as FM transmission parameters.

In practical applications, the FM transmitting module can be integrated into the wireless communication terminal. It should be noted that the wireless data terminal is a data card with wireless Internet access function (for example: wireless network card, wireless routing) Device, etc.), the application layer of the extended data card implements automatic dial-up activation downloading, the embedded system that multiplexes the data card performs soft decoding of the audio, and the audio device and the driver module realize audio output.

The FM transmitting module transmits the audio in the form of FM, realizing the medium-to-short distance FM real-time wireless transmission function of the network audio resources. As long as the user is within the coverage of the mobile network, the network audio resource can be acquired through the device only by supplying power to the data card, and real-time reception can be performed by other FM receiving devices (such as car audio), thereby expanding the usage scenario of the traditional data card. , enhanced user experience.

The details are described below in conjunction with the embodiments. In the data card embedded system, the software adds the download module, the bottom layer and the BSP processing indicator and the button switch part hardware functions in the application layer, the bottom layer and the board support package (BSP) respectively. The software level download module finishes reading the data in the parameter storage module, completes the dialing function, provides a protocol framework to complete the downloading part, and stores the downloaded content in the contracted cache.

Add a parameter storage module in the application layer, refer to FIG. 3, form an interaction with the download module through the function interface; form an interface with the UI interaction function in the data card module through the function interface; and connect with the FM transmission module through the function interface and the BSP. The parameter storage module stores relevant parameter information in a non-volatile memory (nv) or other memory through a standard command or function interface.

The decoding module is added at the application layer, and the interface is formed by the cache and the download module, and the data in the protocol cache is read through the function interface and the BSP and the digital-to-analog conversion module, and the audio signals in the format of aac, mp3, etc. are decoded into ppm. If the target is a video packet such as mkv, the priority unpacking separates the audio portion and decodes it. The decoding algorithm can use the mature algorithm in the prior art, which is not described here.

The digital-to-analog conversion module is added, and the digital-to-analog conversion module is connected to the decoding module. The hardware interface provided by the BSP is connected to the FM transmission module by using a standard cable or circuit in accordance with a standard audio device, and converts the digital audio outputted by the decoding module into analog audio.

The FM transmitting module is respectively connected with the digital-to-analog conversion module and the parameter storage module, and stored according to the parameters. The FM emission parameters in the storage module are set. The FM transmitting module transmits the analog audio output by the digital-to-analog conversion module in the form of FM according to the above-mentioned transmitting parameters.

According to an embodiment of the present invention, a playback system for network streaming audio information is also provided. 4 is a structural block diagram of a network streaming media audio information playing system according to an embodiment of the present invention. As shown in FIG. 4, the playing system includes: a data card module 10, a digital-to-analog conversion module 20, an FM transmitting module 30, and FM receiving. Device 40.

The structure and connection relationship of the data card module 10, the digital-to-analog conversion module 20, and the FM transmission module 30 are shown in FIG. 1 to FIG. 3, and are not described here. The FM receiving device 40 is configured to receive and play the audio information transmitted by the FM transmitting module 30. The FM receiving device 40 is aligned with the frequency setting of the FM transmitting module 30, so that the FM receiving device 40 can receive the audio information transmitted by the FM transmitting module 30.

The above-mentioned FM receiving device 40 can be a plurality of audio systems, for example, a car audio system in a car or a home audio, and can directly interface with the output device of the network streaming audio information, without adding additional equipment. Realize short-distance FM real-time wireless transmission of network audio resources.

According to an embodiment of the present invention, a method for outputting network streaming audio information is provided. FIG. 5 is a flowchart of a method for outputting network streaming audio information according to an embodiment of the present invention. As shown in FIG. Includes:

Step 502: Download audio information by using a wireless network according to preset download parameters.

Step 504: Perform frequency modulation transmission on the audio information downloaded through the wireless network.

6 is a flowchart of a preferred processing scheme of a method for outputting streaming audio information of a network according to an embodiment of the present invention.

Step 602, firstly, each parameter in the parameter storage module needs to be preset, including: a parameter required for dial-up networking, a list of network station addresses or streaming media addresses, FM transmission parameters, etc., with reference to FIG. 7, according to an embodiment of the present invention The output device of the network streaming audio information is connected through the standard The port is connected to the PC, and the parameters required for dialing, the list of network radio addresses or streaming media addresses, FM transmission parameters, and the like can be changed through the UI, and the UI sends the information to the data card module through a conventional interface (such as an AT command), the data card. The module sends the data to the parameter storage module and finally to the memory such as nv.

Steps 604-612, after the power supply device of the network streaming media audio information is powered, the data card module can automatically find the network and register, and then the long-pressing button BTN_A can trigger the networked download module to read the dial-up networking parameters from the parameter storage module for dial-up networking. The first address in the preset network radio station (or streaming media) address list is read from the parameter storage module for activation download, and the preset FM transmission parameters are read from the parameter storage module for updating. At the same time, after the dial-up networking is completed, the indicator 1^0_8 will be on for a long time. When downloading, the indicator LED_A will flash.

Steps 614-616, short press the button BTN_A can be switched in the preset radio address list in the parameter storage module. At the same time, after successfully reading and switching to the next address, the LED_A will flash 3 times quickly.

Step 618, it is judged whether the button BTN_A is pressed again, if yes, step 604 is performed, otherwise step 620 is performed.

Step 620: Perform soft decoding on the downloaded content, for example: the content of the pure audio encoding is directly soft decoded into ppm, and the content of the audio and video encoding separates the audio portion for soft decoding.

Step 622, converting the digital audio signal into an analog audio signal.

Step 624, transmitting the audio signal in the form of FM. At the same time, parameters such as FM transmit frequency and transmit power will be provided by the parameter storage module to the FM transmit module before the launch is initiated. The present invention includes a transmission frequency of the full frequency band. The initial default transmission frequency provided by the present invention is 87.1 MHz, and the user can set according to local laws and regulations.

Step 626, finally, the user can complete the reception by matching the frequency of the FM receiving device with the FM transmitting frequency of the above device. For example, in an in-vehicle environment, the user only needs to adjust the frequency of the car FM radio to the same as the device, and then press the button BTN_A to implement the car. The audio system plays the audio part of the Internet radio or network streaming media with high fidelity.

In addition, when the activation is downloaded using the receiving device according to the embodiment of the present invention, that is, the indicator light

When LED_A is not off, you can press and hold the button BTN_A to deactivate the modem, causing the modem to disconnect from the network. At the same time, the indicator 1^0_8 will go out.

In summary, according to the above technical solution of the present invention, compared with the prior art, the medium-and short-range FM real-time wireless transmission function of the network audio resource is realized, which has high practicability, reduces the cost, and expands the traditional data card. Use the scene to enhance the user experience.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

A device for outputting streaming audio information of a network, comprising: a data card module, configured to download audio information through a wireless network according to a preset download parameter; and an FM transmitting module, configured to: use the data card module The downloaded audio information is transmitted by FM.

2. The apparatus according to claim 1, wherein the data card module further comprises:

a downloading module, configured to download audio-encoded audio information and/or audio-video encoded audio information over a wireless network according to preset download parameters;

And a decoding module, configured to decode the audio encoded audio information, obtain a first digital audio signal, and/or separate and decode the audio and video encoded audio information to obtain a second digital audio signal.

The device according to claim 2, wherein the device further includes: between the data card module and the FM transmitting module, the device further includes:

And a digital to analog conversion module, configured to convert the first digital audio signal and/or the second digital audio signal into an analog audio signal, respectively.

4. Apparatus according to claim 3 wherein:

The FM transmitting module is further configured to perform frequency modulation transmission of the analog audio signal according to a preset transmission parameter.

The device of claim 4, wherein the data card module further comprises: a parameter storage module, configured to save the preset download parameter and the transmit parameter.

6. An output system for network streaming audio information, comprising: a data card module, configured to download audio information through a wireless network according to a preset download parameter; and an FM transmitting module, configured to: use the data card module The downloaded audio information is subjected to FM transmission; and the FM receiving device is configured to receive and play the audio information.

7. The system according to claim 6, wherein the FM transmitting module and the system The frequency of the FM receiving device is set to be the same.

8. A method for outputting audio information of network streaming media, comprising: downloading audio information through a wireless network according to a preset download parameter;

The audio information downloaded through the wireless network is subjected to FM transmission.

The method according to claim 8, wherein the downloading the audio information by using the wireless network according to the preset download parameter further includes:

Downloading audio-encoded audio information and/or audio-video encoded audio information over a wireless network according to preset download parameters;

And downloading the downloaded audio encoded audio information directly to obtain a first digital audio signal;

Separating and decoding the downloaded audio and video encoded audio information to obtain a second digital audio signal;

The first digital audio signal and/or the second digital audio signal are converted to analog audio signals, respectively.

The method according to claim 9, wherein the downloading the audio information by FM transmission further comprises:

The digital-to-analog converted analog audio signal is frequency-modulated and transmitted according to a preset transmission parameter.