CN115278440A - One drags many bimodulus bluetooth to cascade traffic earphone system - Google Patents
One drags many bimodulus bluetooth to cascade traffic earphone system Download PDFInfo
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- CN115278440A CN115278440A CN202211033978.9A CN202211033978A CN115278440A CN 115278440 A CN115278440 A CN 115278440A CN 202211033978 A CN202211033978 A CN 202211033978A CN 115278440 A CN115278440 A CN 115278440A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
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Abstract
The invention discloses a one-driving-multiple dual-mode Bluetooth cascade telephone traffic earphone system, which is characterized in that one 2.4G and Bluetooth transceiver, a plurality of relay stations and a plurality of telephone traffic earphones are arranged, one 2.4G and Bluetooth transceiver can be in wireless connection with the plurality of relay stations, and each relay station can be in wireless connection with the plurality of telephone traffic earphones, so that cascade connection is formed. The relay station and the telephone traffic earphone are both provided with dual-mode function keys, and when the dual-mode function keys of each relay station are completely closed and the dual-mode function key of any telephone traffic earphone is started, the normal Bluetooth mode is entered; when the dual-mode function key of each (or any) relay station is started and the dual-mode function key of each (or a part of) telephone traffic earphone is also started, a cascade telephone traffic earphone mode can be formed, and the communication of the scheme is based on the wireless Bluetooth communication technology.
Description
Technical Field
The invention relates to the technical field of electronic circuits, in particular to a one-drive-many dual-mode Bluetooth cascade telephone traffic earphone system.
Background
A teleconference refers to a conference of people in two or more locations, who are talking face to face, through a communication device and a network. Conference calls can be divided into point-to-point conferences and multipoint conferences according to the number of participating sites. Individuals in daily life have no requirements on the security of conversation contents, the quality of a conference and the scale of the conference, and can adopt video software to carry out video chat. In the commercial video conference of government organs and enterprise institutions, conditions such as stable and safe network, reliable conference quality, formal conference environment and the like are required, and professional teleconference equipment is required to be used for constructing a special teleconference system. When the teleconference system is used, participants can hear the sound of other meeting places, so that the participants have a feeling of being personally on the scene, and therefore, extremely high requirements are provided for the operability, expansibility and adaptability of the teleconference system.
Chinese patent No. CN 202022743385.4 discloses a wireless cascade conference communication system, in which all the earphones are connected by wire, specifically by audio line, so that wireless connection is not really realized.
Disclosure of Invention
In view of the above, the present invention provides a one-to-many dual-mode bluetooth cascade telephone traffic earphone system, which can implement a normal bluetooth telephone traffic earphone mode and a cascade telephone traffic earphone mode, thereby meeting different usage scenarios.
In order to achieve the purpose, the invention adopts the following technical scheme:
a one drags many bimodulus bluetooth to cascade traffic earphone system, include
The 2.4G and Bluetooth transceiver comprises at least one USB port for connecting a computer or a mobile phone, at least one audio interface for transmitting audio signals, a first coding and decoding circuit and a first 2.4G and Bluetooth transceiver circuit; the USB port, the audio interface, the first 2.4G and the Bluetooth transceiver circuit are respectively electrically connected with the first coding and decoding circuit;
the relay stations comprise a second coding and decoding circuit, a second 2.4G and Bluetooth transceiving circuit, a third coding and decoding circuit, a third 2.4G and Bluetooth transceiving circuit, a first key circuit and a first power supply circuit; the second coding and decoding circuit is respectively and electrically connected with the first key circuit, the first power supply circuit, the second 2.4G and the Bluetooth transceiving circuit; the third coding and decoding circuit is respectively connected with the first power supply circuit, the third 2.4G and the Bluetooth transceiving circuit;
and the plurality of telephone traffic earphones comprise a fourth coding and decoding circuit, a second power supply circuit, a fourth 2.4G and Bluetooth transceiving circuit, a second key circuit, an MIC input circuit and a loudspeaker output circuit, wherein the second power supply circuit, the fourth 2.4G and Bluetooth transceiving circuit, the second key circuit, the MIC input circuit and the loudspeaker output circuit are respectively connected with the fourth coding and decoding circuit.
As a preferred scheme, the first key circuit and the second key circuit are respectively provided with a key selection IC, a power switch key and a dual-mode function key, and the power switch key and the dual-mode function key are electrically connected with the key selection IC.
As a preferred scheme, when the dual-mode function key of each relay station is not started and the dual-mode function key of any telephone traffic earphone is started, the telephone traffic earphone with the dual-mode function key is wirelessly connected with the 2.4G and bluetooth transceiver, and the telephone traffic earphone is wirelessly interconnected and communicated with the fourth 2.4G and bluetooth transceiver circuit of the telephone traffic earphone through the first 2.4G and bluetooth transceiver circuit configured by the 2.4G and bluetooth transceiver.
As a preferred scheme, when a dual-mode function key of any relay station is started and dual-mode function keys of a plurality of telephone traffic earphones matched with the relay station with the dual-mode function keys started are also started, the 2.4G and bluetooth transceiver firstly wirelessly communicates with the relay station with the dual-mode function keys started, and the relay station with the dual-mode function keys started respectively forms wireless communication with a plurality of telephone traffic earphones with the dual-mode function keys started at the same time.
As a preferred scheme, the first codec circuit, the second codec circuit, the third codec circuit, and the fourth codec circuit are all provided with a dual-mode master chip supporting a 2.4G private protocol and a standard bluetooth protocol, and supporting an LC3 audio codec function.
Preferably, the dual-mode main wafer is an LE Audio chip.
Preferably, the audio interface of the 2.4G and bluetooth transceivers is a 3.5mm audio output.
As a preferable scheme, the first 2.4G and bluetooth transceiver circuit, the second 2.4G and bluetooth transceiver circuit, the third 2.4G and bluetooth transceiver circuit, and the fourth 2.4G and bluetooth transceiver circuit include a 2.4GHz wireless data transmission module, which is one of nRF2401AG wireless data transmission module, BK2411 wireless data transmission module, and CC2500 wireless data transmission module.
Preferably, the 2.4G and bluetooth transceivers have no battery, and the relay station and the telephone traffic earphone have batteries respectively.
As a preferred scheme, the MIC input circuit includes a microphone bias circuit and a microphone filter circuit, and the microphone is electrically connected to the microphone bias circuit, then connected to the microphone filter circuit, and then input to the fourth codec circuit; and a power amplifier chip is arranged on the horn output circuit.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and concretely, according to the technical scheme, one 2.4G and Bluetooth transceiver, a plurality of relay stations and a plurality of telephone traffic earphones are arranged, one 2.4G and Bluetooth transceiver and the plurality of relay stations can form wireless connection, and each relay station and the plurality of telephone traffic earphones can also be in wireless connection, so that cascade connection is formed. The relay station and the telephone traffic earphone are both provided with dual-mode function keys, and when the dual-mode function keys of each relay station are completely closed and the dual-mode function key of any telephone traffic earphone is started, the normal Bluetooth mode is entered; when the dual-mode function key of each (or any one) relay station is started and the dual-mode function key of each (or a part of) traffic headset is also started, a cascade traffic headset mode can be formed.
In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of a multi-split dual-mode bluetooth tandem traffic headset system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a 2.4G and bluetooth transceiver of an embodiment of the present invention.
Fig. 3 is a circuit block diagram of a 2.4G and bluetooth transceiver of an embodiment of the present invention.
Fig. 4 is a diagram of a relay station according to an embodiment of the invention.
Fig. 5 is a circuit block diagram of a relay station according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a traffic headset of an embodiment of the present invention.
Fig. 7 is a circuit block diagram of a traffic headset of an embodiment of the present invention.
The attached drawings indicate the following:
10. 2.4G and Bluetooth transceiver 11, USB port
12. Audio interface 13 and first coding and decoding circuit
14. First 2.4G and Bluetooth transceiving circuit 20 and relay station
201. Relay station I202 and relay station II
203. Relay station three
21. Second coding and decoding circuit 22, second 2.4G and Bluetooth transceiving circuit
23. Third codec circuit 24, third 2.4G and Bluetooth transceiver circuit
25. First key circuit 26 and first power supply circuit
30. Telephone traffic earphone 31, fourth coding and decoding circuit
32. Second power supply circuit 33, fourth 2.4G and Bluetooth transceiver circuit
34. Second key circuit 35 and MIC input circuit
36. And a horn output circuit.
Detailed Description
Referring to fig. 1 to 7, which show specific structures of a preferred embodiment of the present invention, a multi-split dual-mode bluetooth cascade traffic headset system includes a 2.4G and bluetooth transceiver 10, a plurality of relay stations 20, and a plurality of traffic headsets 30, wherein the 2.4G and bluetooth transceiver 10 can be wirelessly connected to each relay station 20 at the same time, and each relay station 20 can be wirelessly connected to each traffic headset 30 of its code pair, thereby forming a cascade.
As seen from fig. 1, there is one 2.4G and bluetooth transceiver 10, and three relay stations 20, which are relay station one 201, relay station two 202, and relay station three 203; when the 2.4G and bluetooth transceivers 10 are wirelessly connected with three relay stations 201, 202, 203 at the same time, a first-level cascade relationship is formed. Nine traffic earphones 30 are provided, wherein the first traffic earphone, the second traffic earphone and the third traffic earphone (301, 302 and 303) form a first group and respectively belong to the first relay station; the traffic earphones IV, V and VI (304, 305 and 306) form a second group which belongs to the relay station II respectively; traffic headphones seven, eight, nine (307, 308, 309) form a third group that respectively belongs to relay station three. When the three relay stations 20 are wirelessly connected to their respective traffic earphones 30 simultaneously, a second-stage cascade relationship is formed. In this form, a 2.4G and bluetooth transceiver 10 can ultimately pull a total of 9 traffic headsets 30 through the repeater station 20, changing the traditional one-to-one mode, and also achieving true wireless communication without any transmission lines.
As shown in fig. 2, the 2.4G and bluetooth transceiver 10 is mainly used for connecting a computer or a mobile phone, and adopts a USB2.0 interface when connecting the computer, and adopts a TYPE-C interface when connecting the mobile phone, which may also be an apple interface. The 2.4G and bluetooth transceiver 10 is used to transmit the audio signal of the audio frequency of the mobile phone or/and computer via the USB port 11 (or audio interface 12) to the relay station 20 via LC3 coding, and decompress and synthesize the LC3 speech received from the relay station 20 to the mobile phone or computer via the USB port 11, or output the audio frequency from the audio interface 12 to the loudspeaker on site.
Taking a 2.4G and bluetooth transceiver 10 connected to a computer as an example, a main circuit block diagram of the 2.4G and bluetooth transceiver 10 is shown in fig. 3. The 2.4G and Bluetooth transceiver 10 has at least one USB port 11 for connecting a computer or a mobile phone, at least one audio interface 12 for transmitting audio signals, a first codec circuit 13, a first 2.4G and Bluetooth transceiver circuit 14; the USB port 11, the audio interface 12, the first 2.4G transceiver circuit 14 and the bluetooth transceiver circuit 14 are electrically connected to the first codec circuit 13. When the intelligent relay station is used, the USB port 11 is inserted into a computer, software for audio and video processing is installed on the computer, so that audio and video of the computer can be transmitted to the first coding and decoding circuit 13 through the USB port 11, the first coding and decoding circuit 13 is provided with an LC3 audio coding and decoding processing wafer for butting with the relay station, firstly, the LC3 audio coding and decoding processing wafer for butting with the relay station first 201, the relay station second 202 and the relay station third 203 are subjected to code matching, and if one relay station (201 or 202 or 203) starts a communication function, code matching and wireless connection are realized with the relay station (201 or 202 or 203) which starts the communication function; it is also possible that all three relay stations (201, 202 and 203) have enabled the communication function so that the LC3 audio codec handler chip of the docking relay station is connected to all three relay stations 201, 202 and 203 at the same time. The wireless communication between the 2.4G and bluetooth transceiver 10 is implemented by means of a first 2.4G and bluetooth transceiver circuit 14.
The relay station 20 performs a signal transferring function, and as shown in fig. 4, the relay station 20 wirelessly transmits signals. As shown in fig. 5, the circuit configuration of each relay station 20 includes: a second codec circuit 21, a second 2.4G and Bluetooth transceiver circuit 22, a third codec circuit 23, a third 2.4G and Bluetooth transceiver circuit 24, a first key circuit 25, and a first power supply circuit 26. The second codec circuit 21 is electrically connected to the first key circuit 25, the first power supply circuit 26, the second 2.4G and the bluetooth transceiver circuit 22, respectively; the third codec circuit 23 is respectively connected to the first power supply circuit 26, the third 2.4G and the bluetooth transceiver circuit 24.
The second codec circuit 21 has an LC3 audio codec processing chip for interfacing with a telephony device; the third codec circuit 23 has an LC3 audio codec processing chip for interfacing with the traffic headset 30. The second codec circuit 21 and the first codec circuit 13 encode codes; the third codec circuit 23 encodes codes with the traffic headset 30 correspondingly forming a small group. The first key circuit 25 is used to control the activation of the relay station 20. When the dual-mode function key of the relay station I201 is started, the communication function of the relay station I201 on the upper-to-lower link is started, and when the dual-mode function key of the relay station II 202 is started, the communication function of the relay station I on the upper-to-lower link is started; when the dual-mode function key of the third relay station 203 is started, the communication functions of the three pairs of upper and lower links of the relay station are started.
As shown in fig. 6 and 7, the traffic headset 30 is a wireless traffic headset. Each telephone traffic earphone 30 includes a fourth codec circuit 31, and a second power supply circuit 32, a fourth 2.4G and bluetooth transceiver circuit 33, a second key circuit 34, an MIC input circuit 35, and a speaker output circuit 36 respectively connected to the fourth codec circuit 31. The fourth codec circuit 31 supports 2.4G proprietary protocol and standard bluetooth protocol, and supports LC3 audio codec function. The first 2.4G and Bluetooth transceiver circuit 14 is wirelessly connected with the fourth 2.4G and Bluetooth transceiver circuit 33 through the third 2.4G and Bluetooth transceiver circuit 24, and is wirelessly connected with the second 2.4G and Bluetooth transceiver circuit 22 through the first 2.4G and Bluetooth transceiver circuit 14 through the fourth 2.4G and Bluetooth transceiver circuit 33, so that data is transmitted in an uplink and downlink manner in one layer.
More specifically, the first key circuit 25 and the second key circuit 34 respectively have a key selection IC, a power switch key 251 and a dual-mode function key 252, and the power switch key and the dual-mode function key are electrically connected to the key selection IC. If a relay station and a telephone traffic earphone are started, a power switch key needs to be started first, then a dual-mode function key is started, and after the relay station 20 is powered on, codes of the relay station 20 and the 2.4G and Bluetooth transceiver 10 of the previous stage are matched, and codes of the relay station 20 and the telephone traffic earphone 30 of the next stage are matched, so that cascade connection is formed.
In one embodiment, when the dual-mode function key 252 of each relay station 20 is not activated and any dual-mode function key of the traffic headset 30 is activated, the traffic headset 30 with the activated dual-mode function key is wirelessly connected to the 2.4G and bluetooth transceiver 10, and wirelessly communicates with the fourth 2.4G and bluetooth transceiver circuit 33 of the traffic headset 30 through the first 2.4G and bluetooth transceiver circuit 14 configured in the 2.4G and bluetooth transceiver 10.
In another embodiment, when the dual-mode function key of any relay station 20 is activated and the dual-mode function keys of a group of traffic earphones 30 associated with the relay station 20 activated with the dual-mode function key are also activated, the 2.4G and bluetooth transceiver 10 first wirelessly communicates with the relay station (201, 202 or 203) activated with the dual-mode function key, and the relay station (201, 202 or 203) activated with the dual-mode function key respectively wirelessly communicates with a plurality of traffic earphones 30 simultaneously activated with the dual-mode function key.
Moreover, the first codec circuit 13, the second codec circuit 21, the third codec circuit 23, and the fourth codec circuit 31 are all provided with a dual-mode master chip supporting a 2.4G private protocol and a standard bluetooth protocol, and supporting an LC3 audio codec function. Preferably, the dual-mode master wafer is an LE Audio chip, and integrates a 2.4G proprietary protocol, for example, a 2.4GHz wireless data transmission module. The function of the dual-mode master chip of each codec circuit is described in detail as follows:
(A) Respectively decompressing the 3 paths of LC3 voice packets of the telephone traffic headset 30 corresponding to the three paths respectively, then synthesizing the 3 paths into one path of LC3 voice packet, and transmitting the path of LC3 voice packet to the 2.4G and Bluetooth transceiver 10;
(B) The LC3 voice packets transmitted by the 2.4G and bluetooth transceivers 10 are buffered and transmitted to the traffic headset 30 of each corresponding relay station 20.
Furthermore, the audio interface 12 of the 2.4G and bluetooth transceiver 10 is a 3.5mm audio output port, that is, a loudspeaker can be directly connected to the audio interface 12, and the sound collected by each telephone traffic headset 30 can be directly played in real time.
In one embodiment, the first 2.4G and bluetooth transceiver circuit 14, the second 2.4G and bluetooth transceiver circuit 22, the third 2.4G and bluetooth transceiver circuit 24, and the fourth 2.4G and bluetooth transceiver circuit 33 comprise a 2.4GHz wireless data transmission module, which is one of nRF2401AG wireless data transmission module, BK2411 wireless data transmission module, and CC2500 wireless data transmission module.
The 2.4G and Bluetooth transceivers 10 have no battery and are powered by a USB interface. The relay station 20 and the telephone traffic headset 30 are respectively provided with a built-in battery, and are connected with each other in a wireless way without a connecting line. And a power amplifier chip is arranged on the horn output circuit 36.
Based on the system and the framework, the invention discloses a communication method of a one-drive-many dual-mode Bluetooth cascade telephone traffic earphone system, which comprises the following steps:
closing the dual-mode function keys of each relay station 20, starting the dual-mode function keys of any one telephone traffic headset 30, entering a common Bluetooth mode, wherein in the mode, the telephone traffic headset 30 with the dual-mode function keys started can communicate with any Bluetooth in an interconnected manner, so that the telephone traffic headset 30 with the dual-mode function keys started forms the common Bluetooth telephone traffic headset 30;
the cascaded traffic headset 30 mode may be formed when the dual mode function key of each (or any one) relay station 20 is activated while the dual mode function key of each (or a portion of) traffic headset 30 is activated. In this mode, the corresponding telephone traffic headset 30 needs to connect to the relay station 20 matching the code, and then wirelessly connect to the 2.4G and bluetooth transceiver 10 through the relay station 20 to achieve the function of communication. During communication, a microphone picks up sound, each coding and decoding circuit uploads the sound of a user to the first relay station, the second relay station or/and the third relay station by using an LC3 coding technology, and LC3 audio packets transmitted by each relay station 20 are decompressed and transmitted to a loudspeaker.
Each relay station 20 transmits and receives packets using the multiple Time Division Multiplexing (TDMA) technique. The communication of multiple access is realized based on a TDMA communication protocol. The TDMA communication protocol has synchronization information, all the telephone traffic earphones 30 store the broadcast data sent by the complete relay station 20 in a buffer area of the telephone traffic earphones 30 after receiving the broadcast data, and the LC3 encoder starts decoding after 3 telephone traffic earphones 30 are synchronized, so that the audio signals of the 3 telephone traffic earphones 30 are almost synchronized, and the synchronization provides a synchronized reference signal for each relay station 20, so that the echo cancellation effect in the process of aggregation can be almost the same as that of single connection.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (10)
1. A one drags many bimodulus bluetooth to cascade traffic earphone system which characterized in that: comprises that
A 2.4G and Bluetooth transceiver (10), said 2.4G and Bluetooth transceiver (10) having at least one USB port (11) for connecting to a computer or a mobile phone, at least one audio interface (12) for transmitting audio signals, a first codec circuit (13), a first 2.4G and Bluetooth transceiver circuit (14); the USB port (11), the audio interface (12), the first 2.4G and the Bluetooth transceiving circuit (14) are electrically connected with the first coding and decoding circuit (13) respectively;
the relay stations (20) comprise a second coding and decoding circuit (21), a second 2.4G and Bluetooth transceiving circuit (22), a third coding and decoding circuit (23), a third 2.4G and Bluetooth transceiving circuit (24), a first key circuit (25) and a first power supply circuit (26); the second coding and decoding circuit (21) is respectively and electrically connected with the first key circuit (25), the first power supply circuit (26), the second 2.4G and the Bluetooth transceiving circuit (22); the third coding and decoding circuit (23) is respectively connected with the first power supply circuit (26), the third 2.4G and the Bluetooth transceiving circuit (24);
the plurality of telephone traffic earphones (30) comprise a fourth coding and decoding circuit (31), a second power supply circuit (32), a fourth 2.4G and Bluetooth transceiving circuit (33), a second key circuit (34), an MIC input circuit (35) and a loudspeaker output circuit (36), wherein the second power supply circuit (32), the fourth 2.4G and the Bluetooth transceiving circuit are respectively connected with the fourth coding and decoding circuit (31).
2. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: the first key circuit (25) and the second key circuit (34) are respectively provided with a key selection IC, a power switch key (251) and a dual-mode function key (252), and the power switch key and the dual-mode function key are electrically connected with the key selection IC.
3. The dual-mode bluetooth tandem traffic headset system of claim 2, wherein: when the dual-mode function keys of each relay station are not started and the dual-mode function key of any telephone traffic earphone is started, the telephone traffic earphone starting the dual-mode function keys is wirelessly connected with the 2.4G and Bluetooth transceiver (10), and is wirelessly interconnected and communicated with the fourth 2.4G and Bluetooth transceiver circuit (33) of the telephone traffic earphone (30) through the first 2.4G and Bluetooth transceiver circuit (14) configured by the 2.4G and Bluetooth transceiver (10).
4. The dual-mode bluetooth tandem traffic headset system of claim 3, wherein: when a dual-mode function key of any relay station is started and a dual-mode function key of a group of telephone traffic earphones matched with the relay station with the dual-mode function key is also started, the 2.4G and Bluetooth transceiver (10) are in wireless communication with the relay station with the dual-mode function key, and the relay station with the dual-mode function key is in wireless communication with a plurality of telephone traffic earphones with the dual-mode function key started simultaneously.
5. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: and the first coding and decoding circuit (13), the second coding and decoding circuit (21), the third coding and decoding circuit (23) and the fourth coding and decoding circuit (31) are respectively provided with a dual-mode main wafer which supports a 2.4G private protocol and a standard Bluetooth protocol and supports an LC3 audio coding and decoding function.
6. The system of claim 5, wherein the system comprises: the dual-mode master wafer is an LE Audio chip.
7. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: the audio interface (12) of the 2.4G and Bluetooth transceiver (10) is a 3.5mm audio output.
8. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: the first 2.4G and Bluetooth transceiving circuit (14), the second 2.4G and Bluetooth transceiving circuit (22), the third 2.4G and Bluetooth transceiving circuit (24) and the fourth 2.4G and Bluetooth transceiving circuit (33) comprise a 2.4GHz wireless data transmission module, and the model is one of an nRF2401AG wireless data transmission module, a BK2411 wireless data transmission module and a CC2500 wireless data transmission module.
9. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: the 2.4G and Bluetooth transceivers (10) have no batteries, and the relay station (20) and the telephone traffic headset (30) have batteries respectively.
10. The one-drag-many dual-mode bluetooth cascaded traffic headset system of claim 1, wherein: and a power amplifier chip is arranged on the horn output circuit (36).
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| CN202211033978.9A CN115278440A (en) | 2022-08-26 | 2022-08-26 | One drags many bimodulus bluetooth to cascade traffic earphone system |
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| CN202211033978.9A CN115278440A (en) | 2022-08-26 | 2022-08-26 | One drags many bimodulus bluetooth to cascade traffic earphone system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116249045A (en) * | 2023-05-11 | 2023-06-09 | 深圳奥尼电子股份有限公司 | Set-connected microphone acoustic technical equipment adopting wireless star-link mode |
| CN116546383A (en) * | 2023-07-06 | 2023-08-04 | 苏州灵境影音技术有限公司 | Earphone assembly for home theater |
-
2022
- 2022-08-26 CN CN202211033978.9A patent/CN115278440A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116249045A (en) * | 2023-05-11 | 2023-06-09 | 深圳奥尼电子股份有限公司 | Set-connected microphone acoustic technical equipment adopting wireless star-link mode |
| CN116546383A (en) * | 2023-07-06 | 2023-08-04 | 苏州灵境影音技术有限公司 | Earphone assembly for home theater |
| CN116546383B (en) * | 2023-07-06 | 2023-09-05 | 苏州灵境影音技术有限公司 | Earphone assembly for home theater |
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