CN102571127A - Wireless audio frequency transmitting-receiving device and wireless audio frequency transmission method - Google Patents
Wireless audio frequency transmitting-receiving device and wireless audio frequency transmission method Download PDFInfo
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- CN102571127A CN102571127A CN2010106177100A CN201010617710A CN102571127A CN 102571127 A CN102571127 A CN 102571127A CN 2010106177100 A CN2010106177100 A CN 2010106177100A CN 201010617710 A CN201010617710 A CN 201010617710A CN 102571127 A CN102571127 A CN 102571127A
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Abstract
The invention provides a wireless audio frequency transmitting-receiving device and a wireless audio frequency transmission method. The wireless audio frequency transmitting-receiving device comprises an audio frequency input module and a radio frequency transmitting-receiving module. The audio frequency input module is used for inputting an audio frequency signal. The radio frequency transmitting-receiving module is electrically connected with the audio frequency input module, used for converting the audio frequency signal into a first radio frequency signal and a second radio frequency signal and respectively transmits the first radio frequency signal and the second radio frequency signal in a first frequency channel and a second frequency channel according to unit time required for signal transmission, wherein at least one of the first radio frequency signal and the second radio frequency signal includes a forward error correcting code. The wireless audio frequency transmitting-receiving device can transmit audio frequency signals in a one-to-many two-way mode.
Description
Technical field
Relevant a kind of ANTENNAUDIO R-T unit of the present invention and wireless audio transmission method, particularly a kind of ANTENNAUDIO R-T unit and wireless audio transmission method that can one-to-many transmitted in both directions audio signal.
Background technology
The ANTENNAUDIO R-T unit for example with the wireless headset of microphone, can receive the audio signal that host side sends and plays, and also can the sound of user's end be back to host side through microphone.Yet existing ANTENNAUDIO R-T unit only can be applied to man-to-man wireless audio transmission system.Therefore, a kind of ANTENNAUDIO R-T unit that can one-to-many transmitted in both directions audio signal being provided is the target that the present utmost point need be made great efforts.
Summary of the invention
The purpose of this invention is to provide a kind of ANTENNAUDIO R-T unit and wireless audio transmission method; It is to utilize the time to share the notion of (Time Sharing); In the time can transmitting signal, audio signal is transmitted in two different frequency channels, to reduce the influence of disturbing.In addition, the signal that is transmitted comprises error correcting code forward, comprises the audio signal of error bit in order to the receiving terminal corrigendum, and then promotes transmission quality.
ANTENNAUDIO R-T unit according to an aspect of the present invention comprises an audio frequency input module and a RF receiving and transmission module.The audio frequency input module is in order to import an audio signal.RF receiving and transmission module and audio frequency input module electrically connect; In order to audio signal is converted into one first radiofrequency signal and one second radiofrequency signal; And in the unit interval that can transmit signal, first radiofrequency signal and second radiofrequency signal are transmitted respectively at one first channel and one second channel; And receive first radiofrequency signal and second radiofrequency signal that another ANTENNAUDIO R-T unit is transmitted in the unit interval of Yu Feike transmission signal, wherein one of them comprises an error correction forward (FEC) sign indicating number at least for first radiofrequency signal and second radiofrequency signal.
Wireless audio transmission method according to a further aspect of the invention, it is applied to comprise a wireless audio transmission system of a plurality of ANTENNAUDIO R-T units.Wireless audio transmission method of the present invention comprises each ANTENNAUDIO R-T unit and in a unit interval, converts an audio signal into one first radiofrequency signal and one second radiofrequency signal in regular turn; And transmit respectively at one first channel and one second channel, wherein one of them comprises an error correcting code forward at least for first radiofrequency signal and second radiofrequency signal; And other ANTENNAUDIO R-T unit receives first radiofrequency signal and second radiofrequency signal in the non-unit interval of transmitting signal.
Useful technique effect of the present invention is: ANTENNAUDIO R-T unit of the present invention and wireless audio transmission method utilize the notion that the time shares, and in the time can transmitting signal, audio signal are transmitted in two different frequency channels, to reduce the influence of disturbing.Simultaneously, the audio signal that is transmitted comprises error correcting code forward, comprises the audio signal of error bit in order to the receiving terminal corrigendum, and then promotes transmission quality.But ANTENNAUDIO R-T unit of the present invention is one-to-many transmitted in both directions audio signal not only, and the preferably can integrate the user-centered interface device to reduce the cost that the user purchases relevant apparatus.
Following conjunction with figs. is explained specific embodiment of the present invention in detail, when the effect that can be easier to understand the object of the invention, technology contents, characteristics and reached.
Description of drawings
The sketch map of the wireless audio transmission system that Fig. 1 is formed for the ANTENNAUDIO R-T unit that shows one embodiment of the invention.
Fig. 2 a and Fig. 2 b are for showing the sequential sketch map of ANTENNAUDIO R-T unit transmitting audio signal of the present invention.
Fig. 3 is for showing that ANTENNAUDIO R-T unit of the present invention is in the sketch map of a plurality of channel transmission audio signals and switching channels.
Embodiment
Please with reference to Fig. 1, the ANTENNAUDIO R-T unit 10a of one embodiment of the invention, 10b comprise an audio frequency input module 13 and a RF receiving and transmission module 11.In an embodiment, can be an audio frequency inputting interface as the audio frequency input module 13 among the ANTENNAUDIO R-T unit 10a of host side, it is in order to be connected with an audio producing device 20, with the audio signal of input from audio producing device 20.Perhaps, can be a microphone as the audio frequency input module 13 among the ANTENNAUDIO R-T unit 10b of user end, its in order to the voice that receive the user to produce an audio signal.RF receiving and transmission module 11 electrically connects with audio frequency input module 13.RF receiving and transmission module 11 will convert radiofrequency signal into from the audio signal of audio frequency input module 13 long-range to transfer to.
In an embodiment, the wireless audio transmission system of being made up of ANTENNAUDIO R-T unit 10b, the 10c of the ANTENNAUDIO R-T unit 10a of host side and user's end is that the notion of utilizing the time to share (Time Sharing) is come transmitting audio signal.That is system will use the time of channel to be divided into a plurality of unit interval, and ANTENNAUDIO R-T unit 10a, 10b, 10c transmit data in regular turn in the corresponding unit interval.
Please with reference to Fig. 2 a, for example, when unit interval T1, ANTENNAUDIO R-T unit 10a uses channel transmission audio signal AS.At this moment, ANTENNAUDIO R-T unit 10b, 10c promptly receive the audio signal AS from ANTENNAUDIO R-T unit 10a.When unit interval T2, then use channel transmission audio signal AS by ANTENNAUDIO R-T unit 10b, ANTENNAUDIO R-T unit 10a is received audio signal AS then.In an embodiment, ANTENNAUDIO R-T unit 10c can directly receive the audio signal AS that ANTENNAUDIO R-T unit 10b is transmitted.Perhaps, the audio signal AS that ANTENNAUDIO R-T unit 10b is transmitted can transmit through ANTENNAUDIO R-T unit 10a, is received by ANTENNAUDIO R-T unit 10c again.When unit interval T3, then use channel transmission audio signal AS by ANTENNAUDIO R-T unit 10c.Next unit interval T4 then gets back to ANTENNAUDIO R-T unit 10a and uses channel transmission audio signal AS, so repeats above-mentioned steps.
Please with reference to Fig. 2 b, in an embodiment, the ANTENNAUDIO R-T unit 10b that holds as the user can send a request through RF receiving and transmission module 11, requires to take the unit interval that another can transmit signal as ANTENNAUDIO R-T unit 11c of user's end.Shown in Fig. 2 b, ANTENNAUDIO R-T unit 10b can use the unit interval of channel promptly to be extended for unit interval T2 ' by original unit interval T2.Originally use the unit interval T3 of channel then to be cancelled by ANTENNAUDIO R-T unit 11c.
Owing to promptly use the communication channel transmit audio signals behind the ANTENNAUDIO R-T unit transmit audio signals AS by another ANTENNAUDIO R-T unit; Therefore, the ANTENNAUDIO R-T unit 10a of single host side can with ANTENNAUDIO R-T unit 10b, the 10c transmitted in both directions audio signal of a plurality of users end.Please with reference to Fig. 3; ANTENNAUDIO R-T unit 10a, 10b, 10c convert audio signal AS into one first radiofrequency signal RF1 and one second radiofrequency signal RF2; And the first radiofrequency signal RF1 and the second radiofrequency signal RF2 transmit respectively at the first channel CH1 and the second channel CH2; Reduce the influence of interference or error of transmission by this, shown in Ta between the communication period of Fig. 3.Please in the lump with reference to Fig. 2 a; For example; When unit interval T1, ANTENNAUDIO R-T unit 10a transmits the first radiofrequency signal RF1 prior to the first channel CH1, and in the time can transmitting the unit interval of signal next time; Unit interval T4 for example, ANTENNAUDIO R-T unit 10a transmits the second radiofrequency signal RF2 in the second channel CH2 again.Because audio signal is to transmit at different time and different channel, therefore can reduce the influence of interference.
In an embodiment, one of them comprises an error correction forward (Forward Error Correction, FEC) sign indicating number at least for the first radiofrequency signal RF1 and one second radiofrequency signal RF2.The ANTENNAUDIO R-T unit of receiving terminal can be according to the FEC sign indicating number position of righting the wrong.In addition, the received audio signal AS of the RF receiving and transmission module of receiving terminal interpolating method correction also capable of using.According to above-mentioned framework, the ANTENNAUDIO R-T unit of receiving terminal need not to return confirmation signal, and (acknowledgement ACK) can obtain the acceptable ANTENNAUDIO transmission quality of user.
In an embodiment, the ANTENNAUDIO R-T unit 10b that holds as the user can comprise an audio frequency output module 14, for example earphone or loudspeaker.According to this structure; ANTENNAUDIO R-T unit 10b can receive from the audio signal of ANTENNAUDIO R-T unit 10a and play; And can return audio signal by microphone input, make ANTENNAUDIO R-T unit 10b as one have microphone wireless headset use.In an embodiment, ANTENNAUDIO R-T unit 10a, 10b can comprise an audio coder 12, and it is arranged between audio frequency input module 13 and the RF receiving and transmission module 11.Audio coder 12 can be in order to handle the audio signal AS from RF receiving and transmission module 11 and audio frequency input module 13, to reduce the computational load of RF receiving and transmission module 11.
Be noted that; But earphone can electrically connect with pluggable mode and RF receiving and transmission module; And the RF receiving and transmission module as user's end can send corresponding control signal according to the connection status of earphone, to require the quiet or output audio signal of another ANTENNAUDIO R-T unit.For example, when earphone was connected to ANTENNAUDIO R-T unit 10b, ANTENNAUDIO R-T unit 10b can send a control signal, and is quiet with the ANTENNAUDIO R-T unit 10c that requires to be connected with loudspeaker.When earphone when ANTENNAUDIO R-T unit 10b removes, ANTENNAUDIO R-T unit 10b promptly sends corresponding control signal, with the ANTENNAUDIO R-T unit 10c output audio signal that requires to be connected with loudspeaker.
In an embodiment; ANTENNAUDIO R-T unit 10b as user's end can comprise a user-centered interface device (Human Interface Device; HID) 16, for example keyboard, mouse, rocking bar, acceleration transducer, gyroscope etc., itself and RF receiving and transmission module 11 electrically connect.User-centered interface device 16 can receive a control signal CS of user input; But and when ANTENNAUDIO R-T unit 10b transmit audio signals AS, control signal CS is embedded the first radiofrequency signal RF1 and the second radiofrequency signal RF2 transmits in the lump by RF receiving and transmission module 11, shown in Fig. 2 a and Fig. 2 b.Be noted that CS makes a mistake in transmission course for fear of control signal, in an embodiment, RF receiving and transmission module 11 is in the first channel CH1 and the second channel CH2, to transmit identical control signal CS, and is as shown in Figure 3.
In an embodiment, the ANTENNAUDIO R-T unit 10b that holds as the user can comprise a processing unit 15, and it is arranged between user-centered interface device 16 and the RF receiving and transmission module 11.Processing unit 15 can be handled the control signal CS that hommization interface device 16 is imported, to reduce the computational load of RF receiving and transmission module 11.
In an embodiment, can comprise a linkage interface 17 as the ANTENNAUDIO R-T unit 10a of host side, itself and RF receiving and transmission module 11 electrically connect.Linkage interface 17 is in order to electrically connect with an external electronic 30.For example, linkage interface 17 can be USB (Universal Serial Bus, USB), internal integrated circuit (I
2C), universal asynchronous receiver/transmitter (UART) (Universal asynchronous receiver/transmitter, UART) or the peripheral interface of serial (Serial Peripheral Interface, SPI) etc.External electronic 30 can be TV, computer, game machine (game console).In an embodiment, external electronic 30 also can be through ANTENNAUDIO R-T unit 10a output control signal CS (for example controlling the control command that rocking bar produces corresponding vibrations or indication cresset) to ANTENNAUDIO R-T unit 10b.The load mode of control signal CS repeats no more at this as previously mentioned.Be noted that external electronic 30 can be connected with world-wide web, for the service that is provided on user's access network, for example online game, listoning music or singing etc.And the user can directly utilize the user-centered interface device that is integrated in the ANTENNAUDIO R-T unit to carry out the associative operation of network service.
Please with reference to Fig. 3, in an embodiment, RF receiving and transmission module 11 can detect the disturbed condition of the first channel CH1 and the second channel CH2, and the first channel CH1 that will be interfered or the second channel CH2 switch to one the 3rd channel CH3.For example, Tb shows that the first channel CH1 is interfered and can't normally receives the first radiofrequency signal RF1 and control signal CS between the communication period of Fig. 3.At this moment, transmitting terminal can be with the relevant information of the 3rd channel CH3, and for example frequency embeds among the second radiofrequency signal RF2, and transmits in the second channel CH2.Receiving terminal can switch to the 3rd channel CH3 with the first channel CH1 according to the relevant information of the 3rd channel CH3 and receive and transmit signal, shown in Tc between the communication period of Fig. 3.
A kind of wireless audio transmission method of the present invention is a wireless audio transmission system that is applied to comprise a plurality of ANTENNAUDIO R-T units.Method of the present invention comprises each ANTENNAUDIO R-T unit and converts an audio signal into one first radiofrequency signal and one second radiofrequency signal in per unit in the time in regular turn; And transmit respectively at one first channel and one second channel, wherein one of them comprises an error correcting code forward at least for first radiofrequency signal and second radiofrequency signal; And other ANTENNAUDIO R-T unit receives first radiofrequency signal and second radiofrequency signal in the non-unit interval of transmitting signal.Other of wireless audio transmission method of the present invention specifies as previously mentioned, repeats no more at this.
Comprehensively above-mentioned, ANTENNAUDIO R-T unit of the present invention and wireless audio transmission method are to utilize the notion that the time shares, and in the time can transmitting signal, audio signal are transmitted in two different frequency channels, to reduce the influence of disturbing.Simultaneously, the audio signal that is transmitted comprises error correcting code forward, comprises the audio signal of error bit in order to the receiving terminal corrigendum, and then promotes transmission quality.But ANTENNAUDIO R-T unit of the present invention is one-to-many transmitted in both directions audio signal not only, and the preferably can integrate the user-centered interface device to reduce the cost that the user purchases relevant apparatus.
Above-described embodiment only is for technological thought of the present invention and characteristics are described; Its purpose makes the personage who is familiar with this technology can understand content of the present invention and is implementing according to this; When not limiting claim of the present invention with it; Be that every equalization of doing according to disclosed spirit changes or modification, must be encompassed in the claim of the present invention.
Claims (27)
1. an ANTENNAUDIO R-T unit is characterized in that, comprises:
One audio frequency input module, it is in order to import an audio signal; And
One RF receiving and transmission module; Itself and this audio frequency input module electrically connects; In order to this audio signal is converted into one first radiofrequency signal and one second radiofrequency signal; And in the unit interval that can transmit signal, this first radiofrequency signal and this second radiofrequency signal are transmitted respectively at one first channel and one second channel; And Yu Feike transmits in this unit interval of signal and receives this first radiofrequency signal and this second radiofrequency signal that another this ANTENNAUDIO R-T unit is transmitted, and wherein one of them comprises an error correcting code forward at least for this first radiofrequency signal and this second radiofrequency signal.
2. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, this first radiofrequency signal and this second radiofrequency signal are in the different unit interval, to transmit.
3. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, this RF receiving and transmission module utilizes this received audio signal of interpolating method correction.
4. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, also comprises:
One audio coder, it is arranged between this audio frequency input module and this RF receiving and transmission module, in order to handle this audio signal of input.
5. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, this audio frequency input module is a microphone.
6. ANTENNAUDIO R-T unit according to claim 5 is characterized in that, also comprises:
One audio frequency output module, itself and this RF receiving and transmission module electrically connects, in order to export this audio signal.
7. ANTENNAUDIO R-T unit according to claim 6 is characterized in that, this audio frequency output module is an earphone or loudspeaker.
8. ANTENNAUDIO R-T unit according to claim 7; It is characterized in that; But this earphone electrically connects with pluggable mode and this RF receiving and transmission module; And this RF receiving and transmission module sends a corresponding control signal according to the connection status of this earphone, and is quiet or export this audio signal with this ANTENNAUDIO R-T unit that requires to comprise these loudspeaker.
9. ANTENNAUDIO R-T unit according to claim 5 is characterized in that, also comprises:
One user-centered interface device; Itself and this RF receiving and transmission module electrically connects; In order to receive a control signal of user input; And this control signal is embedded this first radiofrequency signal and this second radiofrequency signal by this RF receiving and transmission module, should transmit in this first channel and this second channel in the unit interval corresponding.
10. ANTENNAUDIO R-T unit according to claim 9 is characterized in that, also comprises:
One processing unit, it is arranged between this user-centered interface device and this RF receiving and transmission module, in order to handle this control signal.
11. ANTENNAUDIO R-T unit according to claim 5 is characterized in that this RF receiving and transmission module sends a request, and this unit interval of transmitted signal that takies another this ANTENNAUDIO R-T unit is to transmit this audio signal.
12. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, this audio frequency input module is an audio frequency inputting interface, in order to be connected with an audio producing device.
13. ANTENNAUDIO R-T unit according to claim 12 is characterized in that, also comprises:
One linkage interface, itself and this RF receiving and transmission module electrically connects, and electrically connects in order to an external electronic.
14. ANTENNAUDIO R-T unit according to claim 13 is characterized in that, this linkage interface comprises the peripheral interface of USB, internal integrated circuit, universal asynchronous receiver/transmitter (UART) or serial.
15. ANTENNAUDIO R-T unit according to claim 13 is characterized in that this external electronic comprises TV, computer or game machine.
16. ANTENNAUDIO R-T unit according to claim 13; It is characterized in that; This RF receiving and transmission module embeds this first radiofrequency signal and this second radiofrequency signal with a control signal; Should transmit in this first channel and this second channel in the unit interval corresponding, wherein this control signal comprises the control command that this external electronic is exported.
17. ANTENNAUDIO R-T unit according to claim 1 is characterized in that, this RF receiving and transmission module detects the disturbed condition of this first channel and this second channel, and this first channel that will be interfered or this second channel switch to one the 3rd channel.
18. ANTENNAUDIO R-T unit according to claim 17 is characterized in that, this first radiofrequency signal or this second radiofrequency signal comprise the relevant information of the 3rd channel.
19. a wireless audio transmission method, the wireless audio transmission system that it is applied to comprise a plurality of ANTENNAUDIO R-T units is characterized in that, this method comprises:
Each this ANTENNAUDIO R-T unit converts an audio signal into one first radiofrequency signal and one second radiofrequency signal in regular turn in a unit interval; And transmit respectively at one first channel and one second channel, wherein one of them comprises an error correcting code forward at least for this first radiofrequency signal and this second radiofrequency signal; And
Other this ANTENNAUDIO R-T unit receives this first radiofrequency signal and this second radiofrequency signal in non-this unit interval of transmitting signal.
20. wireless audio transmission method according to claim 19 is characterized in that, this first radiofrequency signal and this second radiofrequency signal are in the different unit interval, to transmit.
21. wireless audio transmission method according to claim 19 is characterized in that, also comprises:
Utilize this received audio signal of interpolating method correction.
22. wireless audio transmission method according to claim 19 is characterized in that, also comprises:
Arbitrary this ANTENNAUDIO R-T unit sends a request, and take next should the unit interval to transmit this audio signal.
23. wireless audio transmission method according to claim 19 is characterized in that, also comprises:
One of them this ANTENNAUDIO R-T unit sends a control signal, and is quiet or export this audio signal to require other this ANTENNAUDIO R-T unit.
24. wireless audio transmission method according to claim 19; It is characterized in that; This ANTENNAUDIO R-T unit embeds this first radiofrequency signal and this second radiofrequency signal with a control signal, and should transmit in this first channel and this second channel in the unit interval corresponding.
25. wireless audio transmission method according to claim 24 is characterized in that, this control signal comprises input signal, control command or the above combination of user-centered interface device.
26. wireless audio transmission method according to claim 19 is characterized in that, also comprises:
Detect the disturbed condition of this first channel and this second channel, and this first channel that will be interfered or this second channel switch to one the 3rd channel.
27. wireless audio transmission method according to claim 26 is characterized in that, this first radiofrequency signal or this second radiofrequency signal comprise the relevant information of the 3rd channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106177100A CN102571127A (en) | 2010-12-22 | 2010-12-22 | Wireless audio frequency transmitting-receiving device and wireless audio frequency transmission method |
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| CN2010106177100A CN102571127A (en) | 2010-12-22 | 2010-12-22 | Wireless audio frequency transmitting-receiving device and wireless audio frequency transmission method |
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| CN104184496A (en) * | 2013-05-24 | 2014-12-03 | 凌通科技股份有限公司 | Bluetooth data/control information transmission module, interactive system and method thereof |
| CN108289340A (en) * | 2016-09-29 | 2018-07-17 | 努比亚技术有限公司 | A kind of equipment of Wireless Fidelity projection, system and method |
| CN111615794A (en) * | 2018-01-19 | 2020-09-01 | 赛普拉斯半导体公司 | Dual advanced audio distribution framework (A2DP) receiver |
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Application publication date: 20120711 |