CN202917169U - Wireless audio frequency adapter based on USB interface - Google Patents
Wireless audio frequency adapter based on USB interface Download PDFInfo
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- CN202917169U CN202917169U CN 201220617837 CN201220617837U CN202917169U CN 202917169 U CN202917169 U CN 202917169U CN 201220617837 CN201220617837 CN 201220617837 CN 201220617837 U CN201220617837 U CN 201220617837U CN 202917169 U CN202917169 U CN 202917169U
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Abstract
The utility model provides a wireless audio frequency adapter based on an USB interface. The wireless audio frequency adapter based on the USB interface includes a wireless SOC (System on Chip) chip receiving wireless audio frequency signals and converting the audio frequency signals to digital signals; an SOC chip used for converting the digital signals to digital audio frequency signals and connected with the wireless SOC chip; and a USB interface transmitting the digital audio frequency signals to a digital sound box for playing and connected with the audio frequency SOC chip. The wireless audio frequency adapter based on the USB interface provided by the utility model does not need to be equipped with an analog audio frequency output interface. By using the USB interface, power can be supplied and digital audio frequency can be transmitted. The wireless audio frequency adapter based on the USB interface is simple in design and low in cost. The wireless audio frequency adapter based on the USB interface disguises streaming media received wireless and in real time as an audio frequency document in a USB storage device, so that the convenience is made for displaying the streaming media by the digital sound box having a digital audio frequency displaying function. And full-digitalization transmission is adopted for the wireless audio frequency adapter based on the USB interface, thereby contributing to the abatement of interference and the improvement of sound quality. At the same time, a prior digital sound box provided with the USB interface is turned to be the wireless digital sound box.
Description
Technical field
The utility model belongs to the radio-based electronic devices technical field, relates to a kind of ANTENN AUDIO adapter, particularly relates to a kind of USB interface-based ANTENN AUDIO adapter.
Background technology
Along with popularizing of intelligent terminal, popularity rate and the acceptance of ANTENN AUDIO are more and more higher now, WIFI audio amplifier, Bluetooth audio device more and more are familiar with by masses and are liked, but itself belongs to durable consumer goods audio amplifier, audio amplifier itself also is not easy to damage, if the user wants to experience ANTENN AUDIO, must buy new wireless sound box, traditional audio amplifier of so original buying will be left unused, and it is also higher newly to buy a whole set of audio amplifier cost.
The mode that realizes at present the ANTENN AUDIO adapter is analog form substantially, its principle is: source of sound is connected with scrambler by analog interface, by outputing to wireless SOC(System on Chip, SOC (system on a chip) after the encoder encodes) chip, gone out by radio-frequency transmissions again.Receiving end is opposite, and wireless SOC chip received RF signal becomes radiofrequency signal into digital signal to audio decoder again, and audio decoder output simulated audio signal is to the aux port of audio amplifier.The characteristics of existing ANTENN AUDIO adapter are: analogue audio frequency outputs to audio amplifier just needs extra audio connection, it is a variety of that but the interface specification of tone frequency channel wire has, such as 3.5mm specification, 6.5mm specification, RCA RCA jack etc., tone frequency channel wire interface and disunity, simultaneously because different Sound designs is different, the length of needed suitable audio connecting cord also differs, and has brought a lot of inconvenience for user's use, and has increased cost.
In recent years, great changes have occured in audio amplifier, from the initial audio amplifier of only supporting simulation AUX input or CD, DVD input, become can support the USB/SD card interface can playback digital music audio amplifier.Several hundred million audio amplifiers are arranged now with USB interface every year, so how to utilize the USB interface on the present audio amplifier, increase ANTENN AUDIO function, problem to be solved in the utility model that Here it is to audio amplifier.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of USB interface-based ANTENN AUDIO adapter, is used for solving the skimble-scamble problem of interface of the connecting line between prior art ANTENN AUDIO adapter and the sound equipment.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of USB interface-based ANTENN AUDIO adapter.
A kind of USB interface-based ANTENN AUDIO adapter, described USB interface-based ANTENN AUDIO adapter comprises: wireless SOC chip, audio SOC chip, USB interface; Described wireless SOC chip receives wireless audio signal and converts digital signal to; Described audio frequency SOC chip links to each other with described wireless SOC chip, the digital audio format signal that becomes digital acoustics to identify described digital signal encoding; Described USB interface links to each other with described audio SOC chip, described digital audio format signal is transferred to digital acoustics plays.
Preferably, described USB interface-based ANTENN AUDIO adapter also comprises a power interface, and described power interface links to each other respectively with wireless SOC chip with described audio SOC chip; Described power interface shares described USB interface, or described power interface is extra power interface independently.
Preferably, described wireless SOC chip comprises: the radio-frequency module that receives wireless audio signal; Baseband processing module with wireless audio signal carries out demodulation links to each other with described radio-frequency module; Control the controller module of a module operation in the wireless SOC chip, link to each other respectively with baseband processing module with described radio-frequency module; Be used for the memory module of data storage, link to each other respectively with described controller module and baseband processing module.
Preferably, described audio SOC chip comprises: decoding obtains the first decoder module of pulse code format signal from the digital signal of described wireless SOC chip output; Described pulse code format signal is encoded into the first coding module of the digital audio format signal that described digital acoustics can identify, links to each other with described the first decoder module; Described digital audio format signal storage is become the internal memory of stream medium data, link to each other with described the first coding module; Convert the stream medium data of storing in the internal memory file system of audio file to, link to each other with described internal memory; Sending module with described audio file sends links to each other respectively with USB interface with described internal memory.
Preferably, described file system is USB memory device file system.
Preferably, described wireless SOC chip comprises: the bluetooth receiving chip or/and the WIFI receiving chip or/and the 2.4G receiving chip.
As mentioned above, USB interface-based ANTENN AUDIO adapter described in the utility model has following beneficial effect:
The utility model need not with the analogue audio frequency output interface, only uses USB interface both can provide power supply, can transmit digital audio again, and design is succinct, and is with low cost; Its Streaming Media with wireless real-time reception audio file on the USB memory device that disguises oneself as, the digital acoustics that conveniently has the digital audio playing function is play; And adopt the total digitalization transmission, and help reduce disturbance, improve tonequality; Simultaneously also existing digital acoustics with USB interface has been become the wireless digital sound equipment.
Description of drawings
Fig. 1 is the structural representation of USB interface-based ANTENN AUDIO adapter described in the utility model.
Fig. 2 is the structural representation of wireless SOC chip in the USB interface-based ANTENN AUDIO adapter described in the utility model.
Fig. 3 is the structural representation of USB interface-based ANTENN AUDIO adapter sound intermediate frequency SOC chip described in the utility model.
The element numbers explanation
1 wireless SOC chip;
11 radio-frequency modules;
12 base band processor module;
13 controller modules;
14 memory modules;
2 audio SOC chips;
21 first decoder modules;
22 first coding modules;
23 internal memories;
24 file system;
25 sending modules;
3 USB interface;
4 power interfaces.
Embodiment
Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.
See also accompanying drawing.Notice, the appended graphic structure that illustrates of this instructions, ratio, size etc., equal contents in order to cooperate instructions to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
Embodiment
Present embodiment provides a kind of USB interface-based ANTENN AUDIO adapter, as shown in Figure 1, comprising: wireless SOC chip 1, audio SOC chip 2, USB interface 3, power interface 4.Described audio SOC chip 2 links to each other with described wireless SOC chip 1, and USB interface 3 links to each other with audio SOC chip 2, and power interface 4 links to each other respectively with audio SOC chip 2 with described wireless SOC chip 1.
Described wireless SOC chip 1 receives wireless audio signal and converts digital signal to.As shown in Figure 2, described wireless SOC chip 1 comprises radio-frequency module 11, base band processor module 12, controller module 13 and memory module 14; Described base band processor module 12 links to each other with radio-frequency module 11, and controller module 13 links to each other respectively with baseband processing module 12 and radio-frequency module 11, and memory module links to each other respectively with controller module 13 and with baseband processing module 12.Described radio-frequency module 11 receives wireless audio signal; Described base band processor module 12 cooperates controller module 13 and memory module 14, and wireless audio signal is carried out demodulation; Modules operation in the wireless SOC chip of described controller module 13 controls; Described memory module 14 is used for the storage data.Described wireless SOC chip 1 is any device chip that can receive wireless audio signal, as: the bluetooth receiving chip is or/and WIFI receiving chip or/and 2.4G receiving chip etc.
The digital audio format signal that described audio SOC chip 2 becomes digital acoustics to identify described digital signal encoding.As shown in Figure 3, described audio SOC chip 2 comprises: the first decoder module 21, the first coding module 22, internal memory 23, file system 24, sending module 25; The first decoder module 21 links to each other with described wireless SOC chip 1, the first coding module 22 links to each other with the first decoder module 21, memory modules 23 links to each other respectively with the first coding module 22, sending module 25 and file system 24, and sending module 25 links to each other respectively with USB interface 3 with internal memory 23.21 decodings of described the first decoder module obtain the pulse code format signal from the digital signal of described wireless SOC chip output; Described the first coding module 22 is encoded into the digital audio format signal that described digital acoustics can be identified with described pulse code format signal; Described internal memory 23 becomes stream medium data with described digital audio format signal storage; Described file system 24 converts the stream medium data of storing in the internal memory to audio file, stores in the memory module again; Described sending module 25 sends to the USB interface transmission with the audio file of storing in the described internal memory.
Generally, in order to reduce the wireless bandwidth utilization factor, audio frequency may be through compressed encoding to a certain degree in transmission.The function of described the first decoder module 21 is to become pulse code form (Pulse-code modulation, PCM) receiving the digital audio and video signals of coming from wireless SOC chip, decoding.The first coding module 22 is encoded into the digital audio format signal that described digital acoustics can be identified with described pulse code format signal, and common form is MPEG-1Audio layer II, MPEG-1Audio layer III, WMA (Windows Media Audio), AAC (Advanced Audio Coding) etc.; Described internal memory 23 is stored as stream medium data with described digital audio and video signals; Described file system 24 converts the stream medium data of storage in the internal memory 23 to audio file; Described sending module 25 sends to USB interface 3 with described audio file.
Described USB interface 3 is play described audio file transmissions to digital acoustics.
Described power interface 4 access power supplys are described audio SOC chip 2 and 1 power supply of wireless SOC chip.Power interface can be extra power interface independently, also can be the USB interface that shares.
The utility model is for more and more having now the USB interface digital acoustics, a kind of with low cost, simple USB interface-based ANTENN AUDIO adapter of use is provided, this adapter only has a USB interface, this USB interface can provide power supply and Digital Audio Transmission simultaneously, and this adapter can accomplish that the such memory device of similar USB DISK is light and handy like that, and cost is also very cheap.
The internet music server that the audiogenic device of adapter described in the utility model can be smart mobile phone, have the PC of wireless capability, can be by the WIFI access or other audio frequency apparatus with 2.4G, bluetooth, WIFI wireless transmit ability etc., the wireless signal form can be bluetooth, WIFI, 2.4G, and the content of transmission can be voice data, the voice data in the PC, the voice data in the internet in the mobile phone or other voice data that can pass through bluetooth, WIFI, 2.4G emission etc.The utility model has the function that can receive above-mentioned some or all of kind wireless signal by built-in wireless SOC chip, and the data that receive are transferred to audio SOC chip, and this audio SOC chip can be finished following functions:
1. the decode ANTENN AUDIO data of various different transport-types, the type of ANTENN AUDIO data is decided on the specification of the corresponding wireless SOC chip that uses.
2. boil down to digital audio format, this digital audio format are one of forms that chip can be decoded in the digital acoustics.
3. the USB interface of digital acoustics is supported the USB memory device usually, ANTENN AUDIO adapter described in the utility model is by a USB memory device that self is disguised oneself as, digital acoustics will be play as a USB memory device like this, read the DAB after the compression, decode and play output.
In addition, the power consumption of considering the wireless SOC chip of part is very large, and the USB interface on some digital acousticses can't provide enough electric currents, has therefore set up independently power interface on the ANTENN AUDIO adapter described in the utility model, in order to input external power source, solve the problem of USB interface electricity shortage.
The utility model has proposed one and utilizes USB interface to power simultaneously and the ANTENN AUDIO adapter of digitized audio transmission for having the digital acoustics of USB interface with the digital audio ability to play, this adapter need not with the analogue audio frequency output interface, only use USB interface both can provide power supply, can transmit digital audio again, design is succinct, and is with low cost; In addition, the utility model is with disguise oneself as audio file on the USB memory device of the Streaming Media of wireless real-time reception, and the digital acoustics that conveniently has the digital audio playing function is play; And the total digitalization transmission, help reduce disturbance, improve tonequality; Simultaneously also existing digital acoustics with USB interface has been become the wireless digital sound equipment.
In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (6)
1. a USB interface-based ANTENN AUDIO adapter is characterized in that, described USB interface-based ANTENN AUDIO adapter comprises:
Receive wireless audio signal and convert the wireless SOC chip of digital signal to;
Described digital signal encoding is become the audio SOC chip of the digital audio format signal that digital acoustics can identify, link to each other with described wireless SOC chip;
Described digital audio format signal is transferred to the USB interface that digital acoustics is play, links to each other with described audio SOC chip.
2. USB interface-based ANTENN AUDIO adapter according to claim 1, it is characterized in that: described USB interface-based ANTENN AUDIO adapter also comprises a power interface, and described power interface links to each other respectively with wireless SOC chip with described audio SOC chip; Described power interface shares described USB interface, or described power interface is extra power interface independently.
3. USB interface-based ANTENN AUDIO adapter according to claim 1 is characterized in that, described wireless SOC chip comprises:
Receive the radio-frequency module of wireless audio signal;
Baseband processing module with wireless audio signal carries out demodulation links to each other with described radio-frequency module;
Control the controller module of modules operation in the wireless SOC chip, link to each other respectively with described radio-frequency module, baseband processing module;
Be used for storage data storage device module, link to each other respectively with described controller module and baseband processing module.
4. according to claim 1 or 3 described USB interface-based ANTENN AUDIO adapters, it is characterized in that described audio SOC chip comprises:
Decoding obtains the first decoder module of pulse code format signal from the digital signal of described wireless SOC chip output;
Described pulse code format signal is encoded into the first coding module of the digital audio format signal that described digital acoustics can identify, links to each other with described the first decoder module;
Described digital audio format signal storage is become the internal memory of stream medium data, link to each other with described the first coding module;
Convert the stream medium data of storing in the internal memory file system of audio file to, link to each other with described internal memory;
Sending module with described audio file sends links to each other respectively with USB interface with described internal memory.
5. USB interface-based ANTENN AUDIO adapter according to claim 4, it is characterized in that: described file system is USB memory device file system.
6. USB interface-based ANTENN AUDIO adapter according to claim 3 is characterized in that, described wireless SOC chip is: the bluetooth receiving chip or/and the WIFI receiving chip or/and the 2.4G receiving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617837 CN202917169U (en) | 2012-11-20 | 2012-11-20 | Wireless audio frequency adapter based on USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617837 CN202917169U (en) | 2012-11-20 | 2012-11-20 | Wireless audio frequency adapter based on USB interface |
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| Publication Number | Publication Date |
|---|---|
| CN202917169U true CN202917169U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220617837 Ceased CN202917169U (en) | 2012-11-20 | 2012-11-20 | Wireless audio frequency adapter based on USB interface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413562A (en) * | 2013-08-09 | 2013-11-27 | 珠海市杰理科技有限公司 | Wireless audio adapter and audio playing device |
| CN104200809B (en) * | 2014-07-18 | 2017-05-24 | 詹承洋 | Wireless music optimizing device |
-
2012
- 2012-11-20 CN CN 201220617837 patent/CN202917169U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413562A (en) * | 2013-08-09 | 2013-11-27 | 珠海市杰理科技有限公司 | Wireless audio adapter and audio playing device |
| CN104200809B (en) * | 2014-07-18 | 2017-05-24 | 詹承洋 | Wireless music optimizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20140829 Decision number of declaring invalidation: 23682 Granted publication date: 20130501 |