CN105323676A - Audio transmission circuit - Google Patents
Audio transmission circuit Download PDFInfo
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- CN105323676A CN105323676A CN201410318028.XA CN201410318028A CN105323676A CN 105323676 A CN105323676 A CN 105323676A CN 201410318028 A CN201410318028 A CN 201410318028A CN 105323676 A CN105323676 A CN 105323676A
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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
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- Acoustics & Sound (AREA)
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- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses an audio transmission circuit which comprises an audio plug, at least one sound assembly and n sub-units. Each sub-unit comprises a first connecting end and a second connecting end. In each sub-unit, the first connecting end is connected with the second connecting end. The second connecting end of the former sub-unit is selectively connected with the first connecting end of the next sub-unit. When the audio plug and the sound assembly are in signal conduction through the sub-units, a complete headset function is realized. At least one sub-unit comprises a function module which can complete a preset function; and selection application of a variety of functions can be realized, thereby improving the equipment integration.
Description
Technical field
The present invention relates to audio devices technical field, particularly relate to a kind of audio transmission circuit.
Background technology
Earphone or headset (earphone of band microphone) are indispensable peripheral host electronic equipments in modern host electronic equipment (mobile phone or panel computer etc.).Earphone brings great convenience and use to our life, uses succinct fashion.But up to now, the integrated level of the peripheral host electronic equipment such as earphone is low, not only increases the peripheral hardware cost of host electronic equipment, and in use bring inconvenience to user.
Summary of the invention
The object of the invention is to, a kind of audio transmission circuit is provided, earphone and at least one functional device are combined, realizes the selection between several functions or Combination application, improve the integrated level of equipment.
For solving the problems of the technologies described above, the invention provides a kind of audio transmission circuit, for transmission of audio signal, it is characterized in that, described audio transmission circuit comprises audio jack, an audible component and n subelement, and described audio jack and audible component realize signal conduction by described subelement, and subelement described at least one comprises the functional module that can complete preset function, wherein, n >=2;
Subelement described in each includes the first link and the second link;
Second link selectivity of last described subelement connects the first link of subelement described in rear, realizes the signal conduction between described subelement.
Further, described first link and described second link respectively comprise at least one connector, when the first link of subelement described in after the second link of last described subelement connects, the connector of described first link is electrically connected with the connector of corresponding described second link.
Further, in subelement described in each, described first link comprises one first signal connector, and described second link comprises a secondary signal connector, and described first signal connector and secondary signal connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the secondary signal connector of last described subelement and rear, the first signal connector of subelement is electrically connected.
Further, described audio transmission circuit also comprises an acoustic signal line, a described acoustic signal line comprises first paragraph and second segment, one end of described first paragraph connects described audio jack, the other end of described first paragraph connects the first signal connector of the 1st described subelement, one end of described second segment connects a described audible component, and the other end of described second segment connects the secondary signal connector of subelement described in n-th.
Further, the first link of subelement described in each all also comprises the first microphone connector, and the second link of i-th described subelement also comprises second microphone connector;
In i-th described subelement, described first microphone connector and second microphone connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the second microphone connector of last described subelement and rear, the first microphone connector of subelement is electrically connected;
Described audio transmission circuit also comprises a microphone signal line, and one end of described microphone signal line connects described audio jack, and the other end of described microphone signal line connects the first microphone connector of the 1st described subelement, 1≤i≤n-1.
Further, described audio transmission circuit also comprises the first line traffic control module, and described first line traffic control module is arranged in a described subelement, and described first line traffic control module is connected with the first microphone connector of the described subelement at its place.
Further, described audio transmission circuit also comprises the first detecting module, described first detecting module and described first line traffic control module are arranged in same described subelement, described first detecting module detects the described subelement at its place and the connection of adjacent described subelement, and gives described first line traffic control module by the first result of detection.
Further, described audio transmission circuit also comprises at least one second line traffic control module, described second line traffic control module is arranged in different described subelements from described first line traffic control module, and described second line traffic control module is connected with the first microphone connector of the described subelement at its place.
Further, described audio transmission circuit also comprises the second detecting module, described second detecting module and described second line traffic control module are arranged in same described subelement, described second detecting module detects the described subelement at its place and the connection of adjacent described subelement, and the second result of detection is issued the second line traffic control module of described second detecting module place subelement.
Further, a kth described subelement comprises described second line traffic control module and described functional module, and in a kth described subelement, described second line traffic control module is connected with described functional module, 1≤k≤n.
Further, subelement described in n-th comprises described functional module, and in subelement described in n-th, described functional module comprises bluetooth earphone module.
Further, (n-1)th described subelement also comprises described functional module, in (n-1)th described subelement, described functional module comprises battery module, (n-1)th described subelement also comprises the second link battery output connecting head of, described battery module connects described battery output connecting head, and the first link of subelement described in n-th also comprises a battery input connector, and described battery input connector connects described bluetooth earphone module;
When the second link of (n-1)th described subelement connects the first link of subelement described in n-th, described battery input connector and described battery output connecting head electrically conduct.
Further, (n-1)th described subelement also comprises described functional module, in (n-1)th described subelement, described functional module comprises interface protocol modular converter, second link of (n-1)th described subelement also comprises a first kind interface connector, first link of (n-1)th described subelement also comprises a Second Type interface connector, described interface protocol modular converter connects described first kind interface connector and Second Type interface connector respectively, first link of subelement described in n-th also comprises the interface connector of described bluetooth earphone module,
When the second link of (n-1)th described subelement connects the first link of subelement described in n-th, interface connector and the described first kind interface connector of described bluetooth earphone module are connected.
Further, described in n-th, subelement also comprises power management module, and described power management module connects described bluetooth earphone module, and described power management module also connects described first signal connector and/or the first microphone connector.
Further, a described audio transmission circuit also jth described subelement also comprises microphone module, and described microphone module connects the first microphone connector of a jth described subelement, 1≤j≤n.
Further, in subelement described in each, described first link also comprises the first ground signalling connector, and described second link also comprises the second ground signalling connector, and described first ground signalling connector and described second ground signalling connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the second ground signalling connector of last described subelement and rear, the first ground signalling connector of subelement is electrically connected.
Further, described audio transmission circuit also comprises at least one control button, and described control button and described audio jack electrically conduct.
Further, at least m described subelement comprises described control button and described functional module, and in m described subelement, described control button is connected with described functional module, to control described functional module, and 1≤m≤n.
Further, described audio transmission circuit also comprises the first line traffic control module, described first line traffic control module is arranged in a described subelement, described first line traffic control module and described audio jack electrically conduct, described control button first connects described first line traffic control module, is electrically conducted by described first line traffic control module and described audio jack.
Further, described control button is arranged at least one described subelement, described first link comprises one first control button connector at least partly, described second link comprises one second control button connector at least partly, control button connector and second by described first and control button connector, realize the control push button signalling conducting between described subelement.
Further, described functional module comprises one or more in flash memory module, audio codec module, interface protocol modular converter, sensor assembly, wireless transmit/receive units module, battery module and CPU.
Further, described audio transmission circuit also comprises another audible component and another acoustic signal line, and another audible component described realizes the signal conduction with described audio jack by another acoustic signal line described.
Compared with prior art, audio transmission circuit provided by the invention has the following advantages:
In audio transmission circuit provided by the invention, described audio transmission circuit comprises audio jack, an audible component and n subelement, subelement described in each includes the first link and the second link, in subelement described in each, described first link connects described second link; Second link selectivity of last described subelement connects the first link of subelement described in rear.Described first link and the second link can transmit the signals such as audio signal, when realizing the signal conduction of described audio jack and audible component by described subelement, can realize complete ear-phone function; Subelement described at least one comprises the functional module that can complete preset function, can realize the selective gist between several functions, thus improves the integrated level of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of first embodiment of the invention sound intermediate frequency transmission circuit;
Fig. 2 is the schematic diagram of the 2nd subelement in first embodiment of the invention;
Fig. 3 is the schematic diagram of second embodiment of the invention sound intermediate frequency transmission circuit;
Fig. 4 is the schematic diagram of the 1st subelement in second embodiment of the invention;
Fig. 5 is the schematic diagram of the 2nd subelement in second embodiment of the invention;
Fig. 6 is the schematic diagram of the 3rd subelement in second embodiment of the invention.
Embodiment
Below in conjunction with schematic diagram, audio transmission circuit of the present invention is described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here, and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the present invention chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
In the following passage, more specifically the present invention is described by way of example with reference to accompanying drawing.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, a kind of audio transmission circuit is provided, described audio transmission circuit is used for transmission of audio signal, described audio transmission circuit comprises audio jack, an audible component and n subelement, described audio jack and audible component realize signal conduction by described subelement, subelement described at least one comprises the functional module that can complete preset function, wherein, and n >=2; Subelement described in each includes the first link and the second link; Second link selectivity of last described subelement connects the first link of subelement described in rear, realizes the signal conduction between described subelement.When realizing the signal conduction of described audio jack and audible component by described subelement, complete ear-phone function can be realized; Subelement described at least one comprises the functional module that can complete preset function, can realize the selective gist between several functions, thus improves the integrated level of equipment.
Below enumerate several embodiments of described audio transmission circuit, to clearly demonstrate content of the present invention, it will be clear that content of the present invention is not restricted to following examples, other improvement by the routine techniques means of those of ordinary skill in the art are also within thought range of the present invention.
First embodiment
Refer to Fig. 1-Fig. 2 and illustrate the first embodiment of the present invention, wherein, Fig. 1 is the schematic diagram of first embodiment of the invention sound intermediate frequency transmission circuit; Fig. 2 is the schematic diagram of the 2nd subelement in first embodiment of the invention.In the present embodiment, described audio transmission circuit 1 comprises two audible component: audible component 12 and another audible component 13, and wherein, a described audible component 12 is left earplug, and another audible component 13 described is right earplug; Or a described audible component 12 is right earplug, another audible component 13 described is left earplug.Described audio transmission circuit 1 can realize traditional ear-phone function, realizes the audio signal transmission of host electronic equipment to left earplug and right earplug.
As shown in Figure 1, described audio transmission circuit 1 comprises audio jack 11, audible component 12 (left earplug or right earplug), another audible component 13 (right earplug or left earplug) and n subelement, n >=2, and n is positive integer.Such as n is 2,3,4,5,6 or more, and in FIG, be 2 to be described with n, namely described audio transmission circuit 1 comprises two subelements: subelement 1U1 and subelement 1U2.Described audio jack 11 is for being connected with described host electronic equipment (mobile phone, media player or panel computer etc.), and a described audible component 12, another acoustic signal line 13 realize the signal conduction with described audio jack 11 by least one subelement (described 1st subelement 1U1 and/or a 2nd subelement 1U2).
In the present embodiment, described audio jack 11 comprises a sound channel terminal 111 (L channel terminal), another sound channel terminal 112 (R channel terminal) and earth terminal 113, wherein, a described sound channel terminal 111 is for transmitting left channel signals HPL, and another sound channel terminal 113 described is for transmitting right-channel signals HPR.In other embodiments of the invention, described audio transmission circuit 1 can also only include a described audible component 12 (left earplug), do not comprise another audible component 13 (right earplug) described, then described audio jack 11 only includes a described sound channel terminal 111, does not comprise another sound channel terminal 112 described.
Subelement described in each includes the first link and the second link, and the second link selectivity of last described subelement connects the first link of subelement described in rear, realizes the signal conduction between described subelement.In the present embodiment, described subelement 1U1 comprises the first link U1I and the second link U1O, and described subelement 1U2 comprises the first link U2I and the second link U2O, and described second link U1O selectivity connects described first link U2I.
Preferably, in subelement described in each, described first link comprises one first signal connector, and described second link comprises a secondary signal connector, and described first signal connector and secondary signal connector electrically conduct.In the present embodiment, first link U1I comprises one first signal connector U1HI, second link U1O comprises a secondary signal connector U1HO, first link U2I comprises one first signal connector U2HI, second link U2O comprises a secondary signal connector U2HO, when described second link U1O connects described first link U2I, secondary signal connector U1HO connects the first signal connector U2HI.
General, described first link also comprises the first ground signalling connector, described second link also comprises the second ground signalling connector, when the first link of subelement described in after the second link of last described subelement connects, described in the second ground signalling connector of last described subelement and rear, the first ground signalling connector of subelement is electrically connected.In the present embodiment, first link U1I comprises the first ground signalling connector U1GI, second link U1O comprises the second ground signalling connector U1GO, and the first link U2I comprises the first ground signalling connector U2GI, and the second link U2O comprises the second ground signalling connector U2GO.When described second link U1O connects described first link U2I, the second ground signalling connector U2GO connects the first ground signalling connector U1GI.Described first ground signalling connector U1GI is for connecting described earth terminal 113, and described second ground signalling connector U2GO is for connecting a described audible component 12.
In the present embodiment, a described sound channel terminal 111 is fixedly connected with described first signal connector U1HI, in other embodiments of the invention, a described sound channel terminal 111 selectivity can connect arbitrary described first link, namely selectivity can connect described first signal connector U1HI or described first signal connector U2HI as required.In the present embodiment, a described audible component 12 is fixedly connected with described secondary signal connector U2HO, in other embodiments of the invention, a described audible component 12 selectivity can connect arbitrary described secondary signal connector, namely selectivity can connect described secondary signal connector U1HO or described secondary signal connector U2HO as required.
Preferably, described audio transmission circuit 1 also comprises an acoustic signal line 14, a described acoustic signal line 14 comprises first paragraph 141 and second segment 142, one end of described first paragraph 141 connects described audio jack 11 (connecting a described sound channel terminal 111), the other end of described first paragraph connects the first signal connector U1HI, one end of described second segment 142 connects a described audible component 12, and the other end of described second segment 141 connects secondary signal connector U2HO.
Wherein, subelement described at least one comprises the functional module that can complete preset function, described functional module comprises flash memory module, audio codec module, interface protocol modular converter, sensor assembly (such as temperature sensor module, humidity sensor module, pressure sensor module, magnetic force sensor module, gas sensor module, photo-sensor module, motion sensor module, attitude sensor module etc.), one or more in wireless transmit/receive units module (such as bluetooth, the modules such as WIFI, ZigBee), battery module and CPU.
Such as in the present embodiment, described subelement 1U2 comprises a described functional module 1F, as shown in Figure 2, wherein, described functional module is bluetooth earphone module, described bluetooth earphone module is the module realizing bluetooth earphone function, described bluetooth earphone module comprises all components and parts (components and parts beyond removing earplug that can realize needed for complete bluetooth earphone, the such as components and parts such as microphone, battery), its circuit structure is what those having ordinary skill in the art will appreciate that, and therefore not to repeat here.
As shown in Figure 2, described functional module 1F connects described secondary signal connector U2HO and described first ground signalling connector U2GO respectively.In the present embodiment, when described secondary signal connector U1HO connects described first signal connector U2HI (simultaneously, described second ground signalling connector U1GO connects described first ground signalling connector U2GI), realize a described audible component 12, Signal transmissions between another acoustic signal line 13 and described audio jack 11, a described audible component 12, another acoustic signal line 13 all receive the audio signal of described host electronic equipment, when connection between described secondary signal connector U1HO and described first signal connector U2HI disconnects (simultaneously, described second ground signalling connector U1GO and described first ground signalling connector U2GI) connection disconnect, then realize a described audible component 12 cannot receive described audio jack 11 signal by described acoustic signal line 14, described functional module 1F (described bluetooth earphone module) starts working, can be wirelessly, a described audible component 12 is made to accept described audio signal, now, described subelement 1U2 and a described audible component 12 can use as a common bluetooth earphone.
Certainly, also flash memory module, audio codec module, interface protocol modular converter, sensor assembly (such as temperature sensor module can be comprised in described subelement 1U1, humidity sensor module, pressure sensor module, magnetic force sensor module, gas sensor module, photo-sensor module, motion sensor module, attitude sensor module etc.), wireless transmit/receive units module (such as bluetooth, the modules such as WIFI, ZigBee), the functional module such as battery module and CPU, described audio transmission circuit 1 can be made to have more function.
In the present embodiment, described first link comprises the first signal connector and the first microphone connector two connectors, described second link comprises secondary signal connector and second microphone connector two connectors, the connector of described first link does not do concrete restriction with the connected mode of the connector of corresponding described second link, such as, the connector of last described subelement can connect the connector of subelement described in rear by contact pin structure, and for example, the connector of last described subelement also can by the connector of subelement described in after USB interface anatomical connectivity, for another example, the connector of last described subelement also can connect the connector of subelement described in rear by connecting line, etc., as long as the signal conduction of the connector of subelement described in the connector and rear that can realize last described subelement, also within thought range of the present invention.Further, the connector of multiple connected mode can be comprised in same described audio transmission circuit.
Second embodiment
Refer to Fig. 3-Fig. 6 and illustrate the first embodiment of the present invention, wherein, Fig. 3 is the schematic diagram of second embodiment of the invention sound intermediate frequency transmission circuit; Fig. 4 is the schematic diagram of the 1st subelement in second embodiment of the invention; Fig. 5 is the schematic diagram of the 2nd subelement in second embodiment of the invention; Fig. 6 is the schematic diagram of the 3rd subelement in second embodiment of the invention.In Fig. 3-Fig. 6, reference number represents the parts that the statement identical with Fig. 1-Fig. 2 is identical with the first execution mode.The audio transmission circuit 2 of described second embodiment is substantially identical with the audio transmission circuit 1 of described first embodiment, its difference is: the first link of subelement described in each all also comprises the first microphone connector, second link of i-th described subelement also comprises second microphone connector, wherein, 1≤i≤n-1, described audio transmission circuit 2 can realize traditional earphone function.In figure 3, comprise 3 described subelements for described audio transmission circuit 2 to be described.In the present embodiment, described audio transmission circuit 2 comprises 3 subelements: the 1st subelement 2U1, the 2nd subelement 2U2, the 3rd subelement 2U3.
Described subelement 2U1 comprises the first link U1I and the second link U1O, described subelement 2U2 comprises the first link U2I and the second link U2O, described subelement 2U3 comprises the first link U3I and the second link U3O, described second link U1O selectivity connects described first link U2I or described first link U3I, transmits between described audio jack 11 and a described audible component 12 (left earplug) to realize described audio signal (left channel signals HPL).
In described subelement 2U1, described first link U1I comprises one first signal connector U1HI, and described second link U1O comprises a secondary signal connector U1HO, and described first signal connector U1HI and described secondary signal connector U1HO electrically conducts; In described subelement 2U2, described first link U2I comprises one first signal connector U2HI, and described second link U2O comprises a secondary signal connector U2HO, and described first signal connector U2HI and described secondary signal connector U2HO electrically conducts; In described subelement 2U3, described first link U3I comprises one first link U3HI, and described second link U3O comprises one second link U3HO, and described first link U3HI and described second link U3HO electrically conducts.When described second link U1O selectivity connects described first link U2I or described first link U3I, described secondary signal connector U1HO selectivity connects described first signal connector U2HI or described first link U3HI, transmits between described audio jack 11 and a described audible component 12 (left earplug) to realize described audio signal (left channel signals HPL).
General, in subelement described in each, described first link also comprises the first ground signalling connector, described second link also comprises the second ground signalling connector, described first ground signalling connector and described second ground signalling connector electrically conduct, when the first link of subelement described in after the second link of last described subelement connects, described in the second ground signalling connector of last described subelement and rear, the first ground signalling connector of subelement is electrically connected.In the present embodiment, the first link U1I comprises the first ground signalling connector U1GI, and the second link U1O comprises the second ground signalling connector U1GO, and described first ground signalling connector U1GI and the second ground signalling connector U1GO electrically conducts; First link U2I comprises the first ground signalling connector U2GI, and the second link U2O comprises the second ground signalling connector U2GO, and described first ground signalling connector U2GI and the second ground signalling connector U2GO electrically conducts; First link U3I comprises the first ground signalling connector U3GI, and the second link U3O comprises the second ground signalling connector U3GO, and described first ground signalling connector U3GI and the second ground signalling connector U3GO electrically conducts.When described second link U1O selectivity connects described first link U2I or described first link U3I, described second ground signalling connector U1GO selectivity connects described first ground signalling connector U2GI or described first ground signalling connector U3GI.Described first ground signalling connector U1GI (the first ground signalling connector of the 1st described subelement) is for connecting described earth terminal 113, and described first ground signalling connector U3GO (the second ground signalling connector of subelement described in n-th) is for connecting a described audible component 12.
As shown in Figure 3, in the present embodiment, described audio jack 21 also comprises Mike's terminal 214, to receive microphone signal MIC.Described audio transmission circuit 2 also comprises a microphone signal line 25, to transmit described microphone signal MIC.
Wherein, in i-th described subelement, described first microphone connector connects described second microphone connector; When the first link of subelement described in after the second link of last described subelement connects, described in the second microphone connector of last described subelement and rear, the first microphone connector of subelement is electrically connected.In described subelement 2U1, described first link U1I comprises one first microphone connector U1MI, described second link U1O comprises a second microphone connector U1MO, and described first microphone connector U1MI and described second microphone connector U1MO electrically conducts; In described subelement 2U2, described first link U2I comprises the first microphone connector U2MI, described second link U2O comprises a second microphone connector U2MO, and described first microphone connector U2MI and described second microphone connector U2MO electrically conducts; In described subelement 2U3, described first link U3I comprises the first microphone connector U3MI.Described second microphone connector U1MO selectivity connects described first microphone connector U2MI, described second microphone connector U2MO selectivity connects described first microphone connector U3MI, in addition, described second microphone connector U1MO selectivity can also connect described first microphone connector U3MI, described subelement 2U1 directly connects described subelement 2U3, when described second microphone connector U1MO connects described first microphone connector U3MI, described subelement 2U2 is without the need to accessing between described audio jack 21 and a described audible component 12, the Signal transmissions between described audio jack 21 and a described audible component 12 can be realized.
In the present embodiment, described Mike's terminal 214 is fixedly connected with described first microphone connector U1MI (the first microphone connector of the 1st described subelement), in other embodiments of the invention, described Mike's terminal 214 selectivity can connect arbitrary described first microphone connector, namely selectivity can connect described first microphone connector U1MI, the first microphone connector U2MI or the first microphone connector U3MI as required.
Preferably, one end of described microphone signal line 25 connects described audio jack 21 (connecting described Mike's terminal 214), and the other end of described microphone signal line 25 connects the first link U1MI of the 1st described subelement 2U1.
Wherein, described audio transmission circuit 2 also comprises the first line traffic control module, described first line traffic control module is arranged in a described subelement, described first line traffic control module is connected with the first microphone connector of the described subelement at its place, make described first line traffic control module by with host electronic equipment communication, the broadcast sound volume of indirect control L channel and R channel, the operating state of microphone signal can also be controlled simultaneously, the circuit structure of described first line traffic control module is what those having ordinary skill in the art will appreciate that, and therefore not to repeat here.Preferably, as shown in Figure 4, the 1st described subelement 2U1 comprises the first line traffic control module 211, and described first line traffic control module 211 is connected with described first microphone connector U1MI.
Described audio transmission circuit 2 also comprises the first detecting module 212, described first detecting module 212 is arranged in same described subelement with described first line traffic control module 211, all be arranged in the 1st described subelement 2U1, described first detecting module 212 detects the connection of the 1st described subelement 2U1 and a 2nd described subelement 2U2, and sends one first result of detection to described first line traffic control module 211.
In addition, described audio transmission circuit 2 also comprises at least one second line traffic control module, described first line traffic control module is arranged in different described subelements from described second line traffic control module, and described second line traffic control module is connected with the first microphone connector of the described subelement at its place.In the present embodiment, as shown in Figure 5, the 2nd described subelement 2U2 comprises the second line traffic control module 221, and described second line traffic control module 221 is connected with described first microphone connector U2MI; As shown in Figure 6, the 3rd described subelement 2U3 comprises the second line traffic control module 231, and described second line traffic control module 231 is connected with described first microphone connector U3MI.
In the present embodiment, described audio transmission circuit 2 also comprises the second detecting module, described second detecting module is arranged in same described subelement with corresponding described second line traffic control module, described second detecting module detects the described subelement at its place and the connection of adjacent described subelement, and sends one second result of detection to the second line traffic control module of described second detecting module place subelement.As shown in Figure 5,2nd described subelement 2U2 also comprises the second detecting module 222, described second detecting module 222 detects described subelement 2U2 and described subelement 2U1 and subelement 2U3 connection, and described second detecting module 222 connects described second line traffic control module 221; As shown in Figure 6,3rd described subelement 2U3 also comprises the second detecting module 232, described second detecting module 232 detects the connection of described subelement 2U3 and the 2nd described subelement 2U2, and described second detecting module 232 connects described second line traffic control module 231.Wherein, described detecting module (comprising the first detecting module and the second detecting module) can the connection status (detection mechanism can be machinery or electronics mode) of at least one connector of subelement described in its place, this is what those having ordinary skill in the art will appreciate that, and therefore not to repeat here.
Preferably, a kth described subelement comprises described second line traffic control module and described functional module, and in a kth described subelement, described second line traffic control module is connected with described functional module, make described second line traffic control module can control the work of described functional module, 1≤k≤n.Such as, in the present embodiment, as shown in Figure 5, the 2nd described subelement 2U2 also comprises functional module 2F2, and described second line traffic control module 221 is connected 2F2 with described functional module; As shown in Figure 6, the 3rd described subelement 2U3 also comprises functional module 2F3, and described second line traffic control module 231 is connected 2F3 with described functional module.
As shown in Figure 6, described functional module 2F3 is bluetooth earphone module, and described second line traffic control module 231 connects described bluetooth earphone module 2F3.Described bluetooth earphone module 2F3 comprises all components and parts (components and parts beyond removing earplug that can realize needed for complete bluetooth earphone, the such as components and parts such as microphone, battery), in addition, described bluetooth earphone module 2F3 can have four line USB port (VUSB connector, D connector, D+ connector, ID connector, GND connector, GND connector can be multiplexing with described first ground signalling connector U3GI), think that described bluetooth earphone module 2F3 charges.
As shown in Figure 5,2nd described subelement 2U2 also comprises functional module 2F2, described functional module 2F2 comprises battery module, and the second link U2O of the 2nd described subelement 2U2 also comprises a battery output connecting head U2TO, and described battery module connects described battery output connecting head U2TO.As shown in Figure 6, the first link U3I of the 3rd described subelement 2U3 also comprises a battery input connector U3TI, described battery input connector U3TI connects described bluetooth earphone module 2F3, described battery input connector U3TI is connected with described battery output connecting head U2TO selectivity, and described battery module can be charged for described bluetooth earphone module 2F3.
Certainly, described functional module 2F2 can also comprise interface protocol modular converter, for the conversion between dissimilar interface.Such as, it (is four line USB port: VUSB ' connector in the present embodiment that the second link U2O of the 2nd described subelement 2U2 also comprises a first kind interface connector, D-' connector, D+ ' connector, ID ' connector, GND connector, GND connector can be multiplexing with described second ground signalling connector U2GO), the first link U2I of the 2nd described subelement 2U2 also comprises a Second Type interface connector (being 8 pin USB<7:0> or <8:1> in the present embodiment), described interface protocol modular converter connects described first kind interface connector and Second Type interface connector respectively.When the second link U2O of the 2nd described subelement 2U2 connects the first link U3I of the 3rd described subelement 2U3, four line USB port and the described first kind interface connector of described bluetooth earphone module 2F3 are connected, and make it possible to be charged to described bluetooth earphone module 2F3 by described Second Type interface connector USB<7:0>.
Preferably, as shown in Figure 6,3rd described subelement 2U3 also comprises power management module (PowerManagementIC, PMIC) 233, described power management module 233 connects described bluetooth earphone module 2F3, described power management module 233 also connects described first link U3HI and/or the first microphone connector U3MI, being that described bluetooth earphone module 2F3 charges by described first link U3HI and/or the first microphone connector U3MI.
As shown in Figure 4, the 1st described subelement 2U1 also comprises microphone module 213, and described microphone module 213 connects the second microphone connector U1MI of the 1st described subelement 2U1.In other embodiments of the invention, described microphone module 213 can also be arranged on the 2nd described subelement 2U2 or a 3rd described subelement 2U3, and according to foregoing description, this is set to those having ordinary skill in the art will appreciate that, therefore not to repeat here.
Preferably, described audio transmission circuit 2 also comprises at least one control button, and described control button and described audio jack 21 electrically conduct, thus realizes the signal conduction of described control button and described host electronic equipment.In the present embodiment, described control button comprises volume increases key K+, volume reduction key K-and Answer Key Kc.In the present embodiment, described volume increases key K+, volume reduces key K-and Answer Key Kc and is connected with described first line traffic control module 211, realizes the signal conduction with described host electronic equipment by described first line traffic control module 211.In other embodiments of the invention, described volume increases key K+, volume reduce key K-and Answer Key Kc respectively from different line traffic control model calling, such as, volume reduces key K-and connects described first line traffic control module 211, Answer Key Kc connects described second line traffic control module 221, described volume increases key K+ and connects described second line traffic control module 231, described volume increases key K+, volume reduces key K-and Answer Key Kc respectively by described second line traffic control module 231, described second line traffic control module 221 and described first line traffic control module 211 realize and the signal conduction with described host electronic equipment.
Wherein, described volume increases key K+, volume reduction key K-and Answer Key Kc can be arranged on separately or together in any one subelement or several subelement.Preferably, described volume reduces key K-and is arranged in the 1st described subelement 2U1, as shown in Figure 4; Described Answer Key Kc is arranged in the 2nd described subelement 2U2, as shown in Figure 5; Described volume reduces key K-and is arranged in the 3rd described subelement 2U3, as shown in Figure 6.
As shown in Figure 4, the second link U1O of the 1st described subelement 2U1 also comprises the second control button connector U1VO and second and controls button connector U1cO, controls push button signalling (signal volume+and answer signal c) to transmit; As shown in Figure 5, the first link U2I of the 2nd described subelement 2U1 also comprises the first control button connector U2VI, first controls button connector U2cI, push button signalling (signal volume+and answer signal c) is controlled to transmit, described second link U2O also comprises the second control button connector U2VO, push button signalling (signal volume+) is controlled to transmit, described first controls button connector U1VI connects described second control button connector U2VO, and described first controls button connector U2cI connects described Answer Key Kc; As shown in Figure 6, the first link U3I of the 3rd described subelement 2U3 also comprises the first control button connector U3VO, controls push button signalling (signal volume+) to transmit, and described first controls button connector U3VO connects described Answer Key K+; Control by described first the connection that button connector and corresponding second controls button connector, realize the control push button signalling conducting between described subelement.
In the present embodiment, as shown in Figure 5, described Answer Key Kc is connected with described functional module 2F2, and when the 2nd described subelement 2U2 is not connected with described host electronic equipment, described Answer Key Kc controls described functional module 2F2; As shown in Figure 6, described volume increases key K+ and is connected with described functional module 2F3, and when the 3rd described subelement 2U3 is not connected with described host electronic equipment, described volume increases key K+ and controls described functional module 2F3.
This be, as shown in Figure 5, described second detecting module 222 is connected with described functional module 2F2, and when the 2nd described subelement 2U2 is connected with described host electronic equipment, described second detecting module 222 is for realizing the transfer of data between described functional module 2F2 and described host electronic equipment; As shown in Figure 6, described second detecting module 232 is connected with described functional module 2F3, when the 3rd described subelement 2U3 is connected with described host electronic equipment, described second detecting module 232 is for realizing the transfer of data between described functional module 2F3 and described host electronic equipment.
Described audio transmission circuit 2, when carrying out work, can be divided into integral type mode of operation and sectional type mode of operation:
1. integral type mode of operation, as shown in Figure 3, described subelement 2U1 is connected with described subelement 2U2, described subelement 2U2 is connected with described subelement 2U3, the connector of described first link U2I connects the connector of the correspondence of described second link UIO, and the connector of described first link U3I connects the connector of the correspondence of described second link U2O.Now, described audio jack 11 inserts the audio jack of described host electronic equipment, the line traffic control module on each described subelement, is shaken hands, set up communication by described microphone signal line 25 with described host electronic equipment.For realizing various configurations pattern, configuring each funtion part by described host electronic equipment, comprising configuration mode a, configuration mode b, configuration mode c and configuration mode d:
Configuration mode a, described host electronic equipment controls to close described bluetooth earphone module 2F3, and closes described power management module 233, closes described functional module 2F2.Described volume increases key K+, volume reduces key K-and Answer Key Kc and is communicated with described first line traffic control module 211, thus realizes traditional wired headset function;
Configuration mode b, described host electronic equipment controls to close described bluetooth earphone module 2F3, start described power management module 233, and start low-resistance driving MIC ray mode (continuous or intermittent mode), realize charging to the battery of described bluetooth earphone module 2F3;
Configuration mode c, described host electronic equipment controls to open described bluetooth earphone module 2F3, but the HPL closing described bluetooth earphone module 2F3 drives, described host electronic equipment and described bluetooth earphone module 2F3 carry out wire communication and match, now, described bluetooth earphone module 2F3 can realize all functions except driving a described audible component 12, such as realizes, with the wireless telecommunications of other host electronic equipment, transmitting the various sensing datas on each described subelement.
Configuration mode d, above three kinds or more configuration can mix, realize greater functionality.
2. sectional type mode of operation, comprises sectional type mode of operation 1), sectional type mode of operation 2)
Sectional type mode of operation 1): described subelement 2U1 is connected with described subelement 2U2, described subelement 2U2 disconnects the connection with described subelement 2U3, the connector of described first link U2I connects the connector of the correspondence of described second link UIO, and the connector of described first link U3I does not connect the connector of the correspondence of described second link U2O.
Now, second detecting module 222 of described subelement 2U2 detects described subelement 2U2 and disconnects the connection with described subelement 2U3, and notify described host electronic equipment and each adjacent modules, second detecting module 232 of described subelement 2U3 detects described subelement 2U2 and disconnects the connection with described subelement 2U3, and notifies described bluetooth earphone module 2F3.If before described subelement 2U2 disconnects the connection with described subelement 2U3, described audio transmission circuit 2 is in talking state:
The modules of described subelement 2U1 and described subelement 2U2 is closed in described host electronic equipment configuration, described bluetooth earphone module 2F3 starts automatically, and drive the HPL mouth of described bluetooth earphone module 2F3 to a described audible component 12, start the microphone of described bluetooth earphone module 2F3, realize conversing with the described host electronic equipment matched, this is " hot drawing " function, namely realizes the bumpless transfer of wired call to wireless communication;
Or described host electronic equipment configuration keeps the unlatching of the modules of described subelement 2U1 and described subelement 2U2, and continue call, but can only converse with monophony, now described bluetooth earphone module 2F3 then automatically enters and manually boots standby condition.
Sectional type mode of operation 2): afterwards, described subelement 2U1 disconnects the connection with described subelement 2U2, and the connector of described first link U2I does not connect the connector of the correspondence of described second link UIO.The detecting module 213 of described subelement 2U1 detects described subelement 2U1 and disconnects the connection with described subelement 2U2, and notifies described host electronic equipment and each module be connected; Second detecting module 222 of described subelement 2U2 detects described subelement 2U1 and disconnects the connection with described subelement 2U2, and notification interface protocol conversion module 2F2 (this chip is used as use USB interface being converted to 8 needle interfaces).If when described subelement 2U1 disconnects the connection with described subelement 2U2, wired earphone is in talking state, then described subelement 2U1 continues to keep talking state.Described subelement 2U2 can independently use, and the described subelement 2U3 originally extracted also independently uses.
Sectional type mode of operation 3): described subelement 2U1 is disconnected the connection with described subelement 2U2, described subelement 2U2 disconnects the connection with described subelement 2U3, the connector of described first link U2I does not connect the connector of the correspondence of described second link UIO, and the connector of described first link U3I does not connect the connector of the correspondence of described second link U2O.The detecting module of described subelement 2U1 detects described subelement 2U1 and disconnects the connection with described subelement 2U2, and notifies described host electronic equipment and each module be connected.Second detecting module 222 of described subelement 2U2 detects described subelement 2U1 and disconnects the connection with described subelement 2U2, and notifies conversion chip and described bluetooth earphone module 2F3.If when extracting, wired earphone is in talking state:
Described subelement 2U3 is closed in described host electronic equipment configuration, described bluetooth earphone module 2F3 starts automatically, and drive the HPL mouth of described bluetooth earphone module 2F3 to a described audible component 12, start the microphone of described bluetooth earphone module 2F3, realize conversing with the described host electronic equipment matched, this is " hot drawing " function, namely realizes the bumpless transfer of wired call to wireless communication;
Or, described host electronic equipment configures the unlatching that the configuration of described host electronic equipment keeps the modules of described subelement 2U1, continue call, but can only converse with monophony, now described bluetooth earphone module 2F3 then automatically enters and manually boots standby condition, and described subelement 2U2 enters interface conversion state.
In like manner, in the present embodiment, described in the connector of last described subelement and rear, the connected mode of the connector of subelement does not do concrete restriction, such as, the connector of last described subelement can connect the connector of subelement described in rear by contact pin structure, and for example, the connector of last described subelement also can by the connector of subelement described in after USB interface anatomical connectivity, for another example, the connector of last described subelement also can connect the connector of subelement described in rear by conductor structure, etc., as long as the signal conduction of the first link of subelement described in second link and rear that can realize last described subelement, also within thought range of the present invention, this is what it will be appreciated by those skilled in the art that, therefore not to repeat here.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (22)
1. an audio transmission circuit, for transmission of audio signal, it is characterized in that, described audio transmission circuit comprises audio jack, an audible component and n subelement, described audio jack and audible component realize signal conduction by described subelement, subelement described at least one comprises the functional module that can complete preset function, wherein, and n >=2;
Subelement described in each includes the first link and the second link;
Second link selectivity of last described subelement connects the first link of subelement described in rear, realizes the signal conduction between described subelement.
2. audio transmission circuit as claimed in claim 1, it is characterized in that, described first link and described second link respectively comprise at least one connector, when the first link of subelement described in after the second link of last described subelement connects, the connector of described first link is electrically connected with the connector of corresponding described second link.
3. audio transmission circuit as claimed in claim 2, it is characterized in that, in subelement described in each, described first link comprises one first signal connector, described second link comprises a secondary signal connector, and described first signal connector and secondary signal connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the secondary signal connector of last described subelement and rear, the first signal connector of subelement is electrically connected.
4. audio transmission circuit as claimed in claim 3, it is characterized in that, described audio transmission circuit also comprises an acoustic signal line, a described acoustic signal line comprises first paragraph and second segment, one end of described first paragraph connects described audio jack, the other end of described first paragraph connects the first signal connector of the 1st described subelement, and one end of described second segment connects a described audible component, and the other end of described second segment connects the secondary signal connector of subelement described in n-th.
5. audio transmission circuit as claimed in claim 3, it is characterized in that, the first link of subelement described in each all also comprises the first microphone connector, and the second link of i-th described subelement also comprises second microphone connector;
In i-th described subelement, described first microphone connector and second microphone connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the second microphone connector of last described subelement and rear, the first microphone connector of subelement is electrically connected;
Described audio transmission circuit also comprises a microphone signal line, and one end of described microphone signal line connects described audio jack, and the other end of described microphone signal line connects the first microphone connector of the 1st described subelement, 1≤i≤n-1.
6. audio transmission circuit as claimed in claim 5, it is characterized in that, described audio transmission circuit also comprises the first line traffic control module, and described first line traffic control module is arranged in a described subelement, and described first line traffic control module is connected with the first microphone connector of the described subelement at its place.
7. audio transmission circuit as claimed in claim 6, it is characterized in that, described audio transmission circuit also comprises the first detecting module, described first detecting module and described first line traffic control module are arranged in same described subelement, described first detecting module detects the described subelement at its place and the connection of adjacent described subelement, and gives described first line traffic control module by the first result of detection.
8. audio transmission circuit as claimed in claim 6, it is characterized in that, described audio transmission circuit also comprises at least one second line traffic control module, described second line traffic control module is arranged in different described subelements from described first line traffic control module, and described second line traffic control module is connected with the first microphone connector of the described subelement at its place.
9. audio transmission circuit as claimed in claim 8, it is characterized in that, described audio transmission circuit also comprises the second detecting module, described second detecting module is arranged in same described subelement with corresponding described second line traffic control module, described second detecting module detects the described subelement at its place and the connection of adjacent described subelement, and the second result of detection is issued the second line traffic control module of described second detecting module place subelement.
10. audio transmission circuit as claimed in claim 8, is characterized in that, a kth described subelement comprises described second line traffic control module and described functional module, and in a kth described subelement, described second line traffic control module is connected with described functional module, 1≤k≤n.
11. audio transmission circuits as claimed in claim 10, it is characterized in that, subelement described in n-th comprises described functional module, and in subelement described in n-th, described functional module comprises bluetooth earphone module.
12. audio transmission circuits as claimed in claim 11, it is characterized in that, (n-1)th described subelement also comprises described functional module, in (n-1)th described subelement, described functional module comprises battery module, second link of (n-1)th described subelement also comprises a battery output connecting head, described battery module connects described battery output connecting head, first link of subelement described in n-th also comprises a battery input connector, and described battery input connector connects described bluetooth earphone module;
When the second link of (n-1)th described subelement connects the first link of subelement described in n-th, described battery input connector and described battery output connecting head electrically conduct.
13. audio transmission circuits as claimed in claim 11, it is characterized in that, (n-1)th described subelement also comprises described functional module, in (n-1)th described subelement, described functional module comprises interface protocol modular converter, second link of (n-1)th described subelement also comprises a first kind interface connector, first link of (n-1)th described subelement also comprises a Second Type interface connector, described interface protocol modular converter connects described first kind interface connector and Second Type interface connector respectively, first link of subelement described in n-th also comprises the interface connector of described bluetooth earphone module,
When the second link of (n-1)th described subelement connects the first link of subelement described in n-th, interface connector and the described first kind interface connector of described bluetooth earphone module are connected.
14. audio transmission circuits as claimed in claim 11, it is characterized in that, described in n-th, subelement also comprises power management module, and described power management module connects described bluetooth earphone module, and described power management module also connects described first signal connector and/or the first microphone connector.
15. audio transmission circuits as claimed in claim 5, is characterized in that, a described audio transmission circuit also jth described subelement also comprises microphone module, and described microphone module connects the first microphone connector of a jth described subelement, 1≤j≤n.
16. audio transmission circuits as claimed in claim 3, it is characterized in that, in subelement described in each, described first link also comprises the first ground signalling connector, described second link also comprises the second ground signalling connector, and described first ground signalling connector and described second ground signalling connector electrically conduct;
When the first link of subelement described in after the second link of last described subelement connects, described in the second ground signalling connector of last described subelement and rear, the first ground signalling connector of subelement is electrically connected.
17. audio transmission circuits as claimed in claim 1, it is characterized in that, described audio transmission circuit also comprises at least one control button, and described control button and described audio jack electrically conduct.
18. audio transmission circuits as claimed in claim 17, is characterized in that, at least m described subelement comprises described control button and described functional module, in m described subelement, described control button is connected with described functional module, to control described functional module, and 1≤m≤n.
19. audio transmission circuits as claimed in claim 17, it is characterized in that, described audio transmission circuit also comprises the first line traffic control module, described first line traffic control module is arranged in a described subelement, described first line traffic control module and described audio jack electrically conduct, described control button first connects described first line traffic control module, is electrically conducted by described first line traffic control module and described audio jack.
20. audio transmission circuits as claimed in claim 17, it is characterized in that, described control button is arranged at least one described subelement, described first link comprises one first control button connector at least partly, described second link comprises one second control button connector at least partly, control button connector and second by described first and control button connector, realize the control push button signalling conducting between described subelement.
21. audio transmission circuits as claimed in claim 1, it is characterized in that, described functional module comprises one or more in flash memory module, audio codec module, interface protocol modular converter, sensor assembly, wireless transmit/receive units module, battery module and CPU.
22. audio transmission circuits as claimed in claim 1, it is characterized in that, described audio transmission circuit also comprises another audible component and another acoustic signal line, and another audible component described realizes the signal conduction with described audio jack by another acoustic signal line described.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318028.XA CN105323676B (en) | 2014-07-04 | 2014-07-04 | Audio transmission circuit |
| PCT/CN2015/083015 WO2016000611A1 (en) | 2014-07-04 | 2015-07-01 | Audio transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318028.XA CN105323676B (en) | 2014-07-04 | 2014-07-04 | Audio transmission circuit |
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| CN105323676A true CN105323676A (en) | 2016-02-10 |
| CN105323676B CN105323676B (en) | 2019-05-03 |
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| CN201410318028.XA Active CN105323676B (en) | 2014-07-04 | 2014-07-04 | Audio transmission circuit |
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| WO (1) | WO2016000611A1 (en) |
Cited By (1)
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| CN110519673A (en) * | 2018-05-21 | 2019-11-29 | 华一声学股份有限公司 | Planar module sound equipment |
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Also Published As
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| CN105323676B (en) | 2019-05-03 |
| WO2016000611A1 (en) | 2016-01-07 |
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