CN205726254U - The USB interface being applicable to earphone inserts end and earphone - Google Patents

Abstract

This utility model embodiment provides a kind of USB interface being applicable to earphone and inserts end, wherein, USB interface is inserted end and is included four grounded pin, two passage configuration signal pins, two groups of differential signal pins and two auxiliary pins, wherein passage configuration signal pin is used for detecting and configuring, in two groups of differential signal pins one group is for transmitting the analogue audio frequency right-channel signals of earphone, another group in two groups of differential signal pins is for transmitting the analogue audio frequency left channel signals of earphone, one in auxiliary pin is used for transmitting analogue audio frequency microphone signal, another in auxiliary pin is for audio frequency ground connection.This utility model embodiment also provides for a kind of earphone, and this earphone can insert end by the above-mentioned USB interface being applicable to earphone and electrically connect with USB.This utility model embodiment is by the pin being suitable for for earphone in a retention criteria USB interface, thus reduces USB interface and insert the cost of end, reduces cost, improves commercial value.

Description

The USB interface being applicable to earphone inserts end and earphone

Technical field

This utility model embodiment relates to USB interface technical field, particularly relates to a kind of earphone that is applicable to USB interface inserts end and earphone.

Background technology

In electronic equipment and the Internet booming today, various portable terminals carry to user For multiple operating function, these portability terminal units are to become a part for people's life, such as, hands Machine, panel computer, e-commerce are stepped on.These portable equipment typically require charging or transmission data, need USB interface to be had is with transmission data or provides charging.

Existing USB generic interface, has 4 lines, two power lines and two holding wires.Due to uUSB Having DC source inside interface, two i.e. power supplys of metal claw outside interface, two, inner side is that serial data connects Mouthful, connect instead and cannot communicate, and, when both positive and negative polarity connects inverse time, USB interface connected device can be burnt Chip.Therefore, existing common USB interface uses the asymmetric design in both sides, prevents anti-inserted.

Owing to existing common USB interface has positive and negative, must go through the when of causing user to patch Positive and negative just can be plugged, and makes troubles to user.The most novel USB interface, USB Type-C Interface can overcome the difficulty of generic USB interface, and USB-C port obverse and reverse is identical, permissible Hold the two-sided insertion of USB interface.USB Type-C interface meets the lightening trend of intelligent terminal, and to positive and negative The support of plugging function more will significantly improve user's experience, the most more and more be quoted.

Earphone is also that portable equipment is commonly provided with, and earphone is a pair converting unit, and it accepts media play The electric signal that device or receptor are sent, utilizes the speaker of ear to convert it into and can hear Sound wave.Earphone is usually separable with media player, utilizes a plug to connect.

The benefit of earphone is in the case of not affecting other people, can listen to alone sound equipment；Also can separate around The sound of environment, has side to the people used under noisy environment of making an uproar in recording studio, DJ, journey, motion etc. very much Help.Earphone is former to be used on phone and radio, but prevailing along with portable electronic devices, ear Machine is used for mobile phone, walkman, radio, portable electronic game sum digit reproducing apparatus for phonotape etc..Existing Major part earphone is jack type, such as, and 3.5mm earphone interface of mobile phone.

In the prior art, on the one hand portable equipment to retain the USB interface of transmission data, another Aspect there is provision of the promising earphone interface patching earphone.Portable equipment arranges multiple interfaces socket, And too many interface is set on portable equipment and socket does not meets that portable equipment is light, thin, is easy to carry Feature.Therefore, portable equipment patches various equipment with general-purpose interface and become trend.

As a example by smart mobile phone, the smart mobile phone of USB Type-C interface is used to have begun to become at present Trend, USB Type-C earphone also arises at the historic moment.USB can be patched at USB Type-C interface Type-C plug, it is also possible to patch USB Type-C interface headphones.

The existing earphone with USB interface and the connection of other equipment is all that the USB of employing standard inserts end Interface, it is impossible to reach energy-conservation purpose.

Utility model content

The purpose of this utility model embodiment be to provide a kind of USB interface being applicable to earphone insert end and Earphone, in order to solve the wave using USB interface to cause when being connected when earphone in prior art with other equipment Take.

A kind of USB interface being applicable to earphone of this utility model embodiment inserts the technical scheme of end employing such as Under:

USB interface is inserted end and is included four grounded pin, two passage configuration signal pins, two groups of difference Signal pins and two auxiliary pins, wherein, grounding pin is used for ground connection, and passage configuration signal pin is used In detection and configuration, a group in two groups of differential signal pins is for transmitting the analogue audio frequency R channel of earphone Signal, another group in two groups of differential signal pins is used for transmitting the analogue audio frequency left channel signals of earphone, In auxiliary pin one is used for transmitting analogue audio frequency microphone signal, and another in auxiliary pin is used for Audio frequency ground connection.

This utility model embodiment also provides for a kind of earphone, and this earphone can be by the above-mentioned earphone that is applicable to USB interface is inserted end and is electrically connected with USB.

The technical scheme of this utility model embodiment has the advantage that this utility model embodiment is by only The pin being suitable for for earphone in retention criteria USB interface, thus reduce USB interface and insert the cost of end, Reduce cost, improve commercial value.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is embodiments more of the present utility model, comes for those of ordinary skill in the art Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is that in prior art, USB Type-C interface inserts end pin configuration schematic diagram；

Fig. 2 is that in prior art, USB Type-C interface inserts end pin configuration schematic diagram；

Fig. 3 is that a kind of USB interface insertion end pin being applicable to earphone of this utility model embodiment shows It is intended to；

It is another that Fig. 4 is that a kind of USB interface being applicable to earphone of this utility model embodiment inserts end pin One schematic diagram.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with Accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, It is fully described by, it is clear that described embodiment is a part of embodiment of this utility model rather than complete The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making The every other embodiment obtained under creative work premise, broadly falls into the scope of this utility model protection.

USB Type-C interface inserts end 22-24 pin, and such as, current Type-C Plug connects Mouth has 22Pin, 24pin's.But traditional actually useful signal of 3.5mm earphone only has four, Its signaling interface used is left channel signals interface, right-channel signals interface, ground signal interface respectively With Mike's signaling interface.Use OMTP standard and use the earphone of CTIA standard to have on interfacing order Institute is different, and such as, the earphone contact pin connection using OMTP standard is (counting from microcephaly): L channel is believed Number interface-right-channel signals interface-microphone signal interface-ground signal interface, CTIA, use OMTP The earphone contact pin connection of standard is (counting from microcephaly): left channel signals interface-right-channel signals interface-ground wire Signaling interface-microphone signal interface.This utility model finds, the USB Type-C interface of prior art This is all for " USB Full-Featured Type-C standard " (USB omnicharacteristic class to insert end pin Type C standard) prepared.It is the most unnecessary that earphone has at use USB Type-C interface insertion end Pin, thus cause USB Type-C interface to insert end Material Cost and increase, design increasingly complex.

Fig. 1, Fig. 2 are that in prior art, USB Type-C interface inserts end pin configuration schematic diagram.Root Shown in Fig. 1, in prior art, USB Type-C interface insertion end includes two row pins, a line identifier For A row, another line identifier is B row, and wherein, A row starts to pin 12 from pin 1, and one has 12 pins, respectively A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, B row starts to pin 12 from pin 1, and one has 12 pins, respectively B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, wherein, four are positioned at summit The entitled GND of pin A1, B1, A12, B12, its effect is ground connection.A4、A9、B4 And B9 is four power bus.

A2, A3, A10, A11 and B2, B3, B10, B11 are eight differential signal pins, Wherein, the entitled SSTXp1 of pin A2, its effect is SuperSpeed differential signal #1, TX, just； The entitled SSTXn1 of pin A3, its effect is SuperSpeed differential signal #1, TX, negative；Pin The entitled SSRXn2 of A10, its effect is SuperSpeed differential signal #2, RX, negative；Pin A11 Entitled SSRXp2, its effect is SuperSpeed differential signal #2, RX, just；Pin B2 title For SSTXp2, its effect is SuperSpeed differential signal #2, TX, just；The entitled SSTXn2 of pin B3, Its effect is SuperSpeed differential signal #2, TX, negative；The entitled SSRXn1 of pin B10, it is made With being SuperSpeed differential signal #1, RX, negative；Pin B11 is entitled, and its effect is SSRXp1； Pin name is, its effect is SuperSpeed differential signal #1, RX, just.

A4, A9, B4 and B9 are four bus power source pins, its entitled V_BUS, effect is to make For bus power source.

These pins above-mentioned, are positioned in ellipse as shown in Figure 1 and iris out, and are all to use when for earphone Less than.Which results in material waste.

Fig. 3, Fig. 4 are that a kind of USB interface insertion end being applicable to earphone of this utility model embodiment draws Foot schematic diagram.According to Fig. 3 and Fig. 4, this utility model embodiment is a kind of is applicable to earphone USB interface is inserted end and is also included two row pins, and a line is designated A row, and another line identifier is B row, Wherein, the effective pin of A row includes A1, A5, A6, A7, A8 and A12, the effective pin of B row Including B1, B5, B6, B7, B8 and B12, it is to be understood that implement at this utility model In example, can be to include and only include these effective pins above-mentioned, it is, standard USB connects Other pins of mouth are empty.Wherein, four titles being positioned at summit pin A1, B1, A12, B12 For GND, its effect is ground connection.A row also has pin A5, A6, A7 and A8, B row also to include Pin B5, B6, B7 and B8.Wherein, the entitled CC1 of pin A5, effect is detection and joins Put (Configuration channel)；The entitled Dp1 of pin A6, effect is USB 2.0 difference Signal, position 1；The entitled Dn1 of pin A7, effect is USB 2.0 differential signal, position 1；The entitled SBU1 of pin A8, effect is auxiliary pin (Sideband use is called for short SBU)； The entitled SBU2 of pin B8, effect is auxiliary pin (Sideband use is called for short SBU)；Draw The entitled Dn2 of foot B7, effect is USB 2.0 differential signal, position 2, negative；Pin B6 name Being referred to as Dp2, effect is USB 2.0 differential signal, position 2, just；The entitled CC2 of pin B5, Effect is detection and configuration (Configuration channel), it can be seen that pin B5 is at Fig. 3 In be labeled as CC2, be labeled as VCONN, the both title of pin B5 in the diagram, this This is not defined by utility model.Wherein, grounding pin A1, B1, A12, B12 are used for ground connection, Passage configuration signal pin A5 and B5 is used for detecting and configuring, in two groups of differential signal pins Group for transmitting the analogue audio frequency right-channel signals of earphone, two groups of differential signals pin A6, A7 and B6, Another group in B7 is for transmitting the analogue audio frequency left channel signals of earphone, in auxiliary pin A8 and B8 One be used for transmitting analogue audio frequency microphone signal, another in auxiliary pin is for audio frequency ground connection. The pin being suitable for for earphone in this utility model embodiment is by a retention criteria USB interface, thus subtract Few USB interface inserts the cost of end, reduces cost, improves commercial value.

Further, in this utility model embodiment, for transmitting the analogue audio frequency R channel of earphone One group of differential signal pin phase short circuit, for transmitting one group of differential signal of the analogue audio frequency L channel of earphone Pin phase short circuit.Such as, A6 and A7 pin phase short circuit, B6 and B7 pin phase short circuit.

Further, in this utility model embodiment, for transmitting the auxiliary of analogue audio frequency microphone signal Helping pin, such as, in A8 and B8 is suitable for U.S.'s radio communication and the Internet specifically for transmission Analogue audio frequency microphone signal in the 3.5mm four-section type headset interface of association criterion CTIA.

Further, in this utility model embodiment, for the auxiliary pin of audio frequency ground connection, such as, Another in A8 and B8 is for CTIA audio frequency ground connection.

Further, in this utility model embodiment, for transmitting the auxiliary of analogue audio frequency microphone signal Helping pin, such as, in A8 and B8 is suitable for OMTP specifically for transmission Analogue audio frequency mike in the 3.5mm four-section type headset interface of standard OMTP or communication industry standard Signal.

Further, in this utility model embodiment, for audio frequency ground connection auxiliary pin such as, A8 With another in B8 for OMTP or the audio frequency ground connection of communication industry standard.

Further, in this utility model embodiment, two passage configuration signal pin A5 Yu B5 with Ground is electrically connected by resistance.

Further, in this utility model embodiment, four grounded pin is positioned at USB interface and inserts end Four summits, two passage configuration signal pins insert the central point of end according to USB interface, two Group differential signal pin inserts the central point of end respectively according to USB interface, and auxiliary pin is according to USB Interface inserts the central point of end.Such as, A1 and B1 centrosymmetry, A5 and B5 centrosymmetry.

Further, in this utility model embodiment, USB interface inserts end group in USB Type C Standard.Specifically, the USB interface in this utility model embodiment insert end except retain pin and The difference of prior art, other technologies parameter can with reference to or according to present USB type-c standard.

This utility model embodiment also provides for a kind of earphone, and this earphone can be applicable to earphone by above-mentioned USB interface insert end electrically connect with socket.

Further, in this utility model embodiment, USB interface inserts end group in USB Type C Standard.

Device embodiment described above is only schematically, wherein said illustrates as separating component Unit can be or may not be physically separate, the parts shown as unit can be or Person may not be physical location, i.e. may be located at a place, or can also be distributed to multiple network On unit.Some or all of module therein can be selected according to the actual needs to realize the present embodiment The purpose of scheme.Those of ordinary skill in the art are not in the case of paying performing creative labour, the most permissible Understand and implement.

Through the above description of the embodiments, those skilled in the art is it can be understood that arrive each reality The mode of executing can add the mode of required general hardware platform by software and realize, naturally it is also possible to by firmly Part.Based on such understanding, the portion that prior art is contributed by technique scheme the most in other words Dividing and can embody with the form of software product, this computer software product can be stored in computer can Read in storage medium, such as ROM/RAM, magnetic disc, CD etc., including some instructions with so that one Computer equipment (can be personal computer, server, or the network equipment etc.) performs each to be implemented The method described in some part of example or embodiment.

Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than It is limited；Although this utility model being described in detail with reference to previous embodiment, this area Those of ordinary skill is it is understood that the technical scheme described in foregoing embodiments still can be carried out by it Amendment, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, not The essence making appropriate technical solution departs from the spirit and scope of this utility model each embodiment technical scheme.

Claims (11)

1. the USB interface being applicable to earphone inserts end, it is characterized in that, described USB interface is inserted end and is included four grounded pin, two passage configuration signal pins, two groups of differential signal pins and two auxiliary pins, wherein, described grounding pin is used for ground connection, described passage configuration signal pin is used for detecting and configuring, in described two groups of differential signal pins one group is for transmitting the analogue audio frequency right-channel signals of earphone, another group in described two groups of differential signal pins is for transmitting the analogue audio frequency left channel signals of earphone, one in described auxiliary pin is used for transmitting analogue audio frequency microphone signal, another in described auxiliary pin is for audio frequency ground connection.

Insertion end the most according to claim 1, it is characterised in that one group of differential signal pin phase short circuit of the described analogue audio frequency R channel for transmitting earphone, one group of differential signal pin phase short circuit of the described analogue audio frequency L channel for transmitting earphone.

Insertion end the most according to claim 1, it is characterized in that, the described auxiliary pin for transmitting analogue audio frequency microphone signal is suitable for the analogue audio frequency microphone signal in the 3.5mm four-section type headset interface of U.S.'s radio communication and internet society's standard CTIA specifically for transmission.

Insertion end the most according to claim 3, it is characterised in that the described auxiliary pin for audio frequency ground connection is used for CTIA audio frequency ground connection.

Insertion end the most according to claim 1, it is characterized in that, the described auxiliary pin for transmitting analogue audio frequency microphone signal is suitable for the analogue audio frequency microphone signal in the 3.5mm four-section type headset interface of OMTP standard OMTP or communication industry standard specifically for transmission.

Insertion end the most according to claim 5, it is characterised in that the described auxiliary pin for audio frequency ground connection is for OMTP or the audio frequency ground connection of communication industry standard.

Insertion end the most according to claim 1, it is characterised in that said two passage configuration signal pin is electrically connected by resistance with ground.

8. according to the insertion end according to any one of claim 1-7, it is characterized in that, described four grounded pin is positioned at described USB interface and inserts four summits of end, said two passage configuration signal pin inserts the central point of end according to described USB interface, described two groups of differential signal pins insert the central point of end respectively according to described USB interface, and described auxiliary pin inserts the central point of end according to described USB interface.

Insertion end the most according to claim 8, it is characterised in that described USB interface inserts end group in USB Type C standard.

10. an earphone, it is characterised in that described earphone can electrically connect with socket by inserting end according to the USB interface being applicable to earphone according to any one of claim 1-9.

11. earphones according to claim 10, it is characterised in that described USB interface inserts end group in USB Type C standard.