CN102623865A

CN102623865A - Patch cord fitting

Info

Publication number: CN102623865A
Application number: CN2012100825823A
Authority: CN
Inventors: 魏孔刚; 刘海龙; 张同邦
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2012-08-01

Abstract

The embodiment of the invention provides a patch cord fitting which comprises a plug end and a socket end, wherein the plug end is used for inserting into an earphone jack of terminal equipment, the socket end is used for inserting into a plug end of an earphone actually used, the definition of a plug contact of the plug end is different from the definition of a pin contact o the socket end in the standard, the plug end is connected with the socket end through a patch cord, and two ends of each connecting wire in the patch cord are respectively connected with contacts with same definition in the plug end and the socket end. According to the patch cord fitting provided by the embodiment of the invention, all contacts of the used earphone can be in circuit connection with the contacts with the same definition in the plug of the earphone of the terminal equipment, and further the earphone which is not matched with an interface of the jack of the earphone of the terminal equipment in the standard normally works, therefore, according to the embodiment of the invention, the terminal equipment can be compatible with terminal equipment which is different from the same in the standard.

Description

A kind of patchcord accessory

Technical field

The invention belongs to electronic technology field, especially design a kind of patchcord accessory.

Background technology

The structure of the headset plug of four current joint formula earphones is shown in Fig. 1, and its plug end is divided into the contact of tip 11, middle ring 12, middle ring 13 and terminal 14 4 parts.For four joint formula earphones two kinds of interface standards are arranged at present; Different interface standards is also different to the definition of four part contacts of above-mentioned headset plug end; For example the definition for four part contacts of headset plug end is following in first kind of interface standard (can be designated as L/R/M/GND): most advanced and sophisticated 11 connect L channel; Middle ring 12 connects R channel, and middle ring 13 connects microphone (MIC+), and terminal 14 meet signal circuit GND.And in second kind of interface standard (can be designated as L/R/GND/M) for the contact definition of four parts of headset plug end as follows: most advanced and sophisticated 11 connect L channel, and middle ring 12 connects R channel, and middle ring 13 meets signal circuit GND, and end 14 connects microphone (MIC+).

Present mobile phone can only be supported a kind of earphone of interface standard; Be that earphone jack on the mobile phone only is complementary with the earphone that adopts a kind of interface standard; And if interface standard and the earphone jack of inserting the earphone in the earphone jack do not match; Then the microphone contact of headset plug end will be connected on the signal circuit (GND) of mobile phone, and the signal circuit of Mobile phone plug end (GND) contact will be connected on the microphone signal (MIC) of mobile phone, and then cause little, the distortion of earphone left and right sides speaker sound; Ear microphone is inoperative, problem such as can't hang up the telephone when microphone control button is pressed.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of patchcord accessory, can make the earphone of existing handset compatibility distinct interface standard.

Be to realize above-mentioned purpose, one embodiment of the present of invention provide a kind of patchcord accessory, comprising: plug end and socket end, and wherein plug end is used to insert the earphone jack of terminal equipment, and socket end is used to insert the plug end of the earphone of actual use;

Wherein, to define the standard of being abideed by different the standard abideed by of the plug contacts of said plug end definition and the pin contact of said socket end;

Connect through the switching cable between said plug end and the said socket end, the two ends of every connecting line in the said switching cable define identical contact in attachment plug end and the socket end respectively.

The patchcord accessory that provides through the embodiment of the invention; Setting up circuit between the contact that can each contact of employed earphone is identical with the definition in the terminal equipment earphone jack connects; And then the unmatched earphone operate as normal of interface standard of feasible and terminal equipment earphone jack, therefore can be so that terminal equipment compatibility standard different terminal equipment through the embodiment of the invention.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the sketch map of prior art headphone plug;

Fig. 2 is the structural representation of an embodiment of patchcord accessory provided by the invention;

Fig. 3 is the sketch map of a switching scheme in the patchcord accessory provided by the invention;

Fig. 4 is the sketch map of another switching scheme in the patchcord accessory provided by the invention.

Fig. 5 is the sketch map of another switching scheme in the patchcord accessory provided by the invention.

Embodiment

For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.

Embodiment one

Fig. 2 shows the exterior contour sketch map of an embodiment of patchcord accessory provided by the invention, and the patchcord accessory in the present embodiment comprises plug end 21, socket end 22 and switching cable 23.Wherein plug end 21 is used to insert the earphone jack of terminal equipment, and socket end 22 is used to insert the unmatched headset plug end 3 of standard of the earphone jack of inserting with plug end.

In the present embodiment; The standard that the definition of the pin contact in the plug contacts of plug end 21 and the socket end 22 is abideed by is different; Promptly have at least the definition of a plug contacts different, perhaps also can be described as having at least the definition of a pin contact different with the definition of the plug contacts of corresponding position on plug end 21 with the definition of the pin contact of corresponding position in socket end 22.

Connect through the cable 23 of transferring between plug end 21 and the socket end 22, define identical contact on the two ends difference attachment plug end 21 of every connecting line in the switching cable 23 with in the socket end 22.

When the definition of used earphone of user and the earphone jack in the terminal equipment is inequality; Can realize switching through the patchcord accessory in the present embodiment, but the standard that the contact that needs to select plug end and the contact definition in the terminal equipment earphone jack are abideed by is identical and the contact of socket end and the contact of used earphone define the identical patchcord accessory of standard of being abideed by.

After selecting correct patchcord accessory; The plug end 21 of patchcord accessory is inserted in the earphone jack of terminal equipment; Employed earphone is inserted in the socket end 22 of patchcord; Through this patchcord accessory, set up circuit between the contact that just can each contact of employed earphone is identical with the definition in the terminal equipment earphone jack and connect, and then make that earphone can operate as normal.This shows, can be through the patchcord accessory that present embodiment provides so that the different earphone of terminal equipment compatibility standard.

Embodiment two

Present embodiment specifies the concrete realization of the patchcord accessory among the present invention with a concrete example.

In the present embodiment, in the earphone standard that the terminal equipment earphone jack is supported, the definition of headset plug contact is followed successively by L channel (L), R channel (R), microphone (M) and ground connection (GND).And the definition of the plug contacts of the actual employed earphone of user is followed successively by ground connection (GND), L channel (L), R channel (R) and microphone (M).

In order to let the earphone that this terminal equipment can the actual use of compatible user, need select the patchcord accessory that satisfies the switching scheme as Fig. 3 shown in for use, the switching that this patchcord accessory internal plug end and each contact of socket end have been shown among Fig. 3 concerns.In order to meet the interface standard of terminal equipment earphone jack, the plug contacts definition is followed successively by L channel (L), R channel (R), microphone (M) and ground connection (GND) in plug end.In order to meet the interface standard of actual use terminal equipment, the definition of each pin contact is followed successively by ground connection (GND), L channel (L), R channel (R) and microphone (M) in the socket in socket end.

Through the connecting line in the switching cable, set up the connection between two identical contacts of plug end and socket end definition respectively.

In the present embodiment, the definition of corresponding contact, any a pair of position is all different in plug end and socket end.

Embodiment three

Present embodiment is on the basis of the patchcord accessory that embodiment one proposes; Further proposed to be applicable to the patchcord accessory of special scenes, met some requirements between two different standards that this specific scene requires the contact of contact and the socket end of plug end to abide by.

Particularly, exist the definition of at least one pair of plug contacts different on the plug end with the definition of the pin contact of the interior corresponding position of socket end.And the pin contact that said plug contacts is identical with its definition; There is cross reference in position in plug end and socket end; Therefore, in every pair of above-mentioned plug contacts, two plug contacts have realized being connected of intersection with the identical pin contact of definition in the socket end.

Below might as well be with the cross-coupled situation of plug end and the contact in the socket end in the real example explanation present embodiment.

As shown in Figure 4, be followed successively by L channel (L), R channel (R), microphone (M), ground connection (GND) in the definition of each plug contacts of plug end.And each pin definition of socket end is followed successively by L channel (L), R channel (R), ground connection (GND), microphone (M).Emphasis shows the internal forwarding relation of this patchcord accessory plug end and each contact of socket end among Fig. 4.In this example; The definition of the pin contact (being the microphone contact) of corresponding position is different on earthing contact on the plug end and the socket end, and the definition of the pin contact (being earthing contact) of corresponding position is different on the microphone contact on the plug end and the socket end.Therefore in the example shown in Fig. 4; On plug end, having a pair of plug contacts is different with the definition of the pin contact of corresponding position; And this is in the plug contacts; Being defined as the microphone contact with the corresponding pin contact, plug contacts position that is defined as ground connection, is identical and the definition of this pin contact is definition with another plug contacts (being the plug contacts that is defined as ground connection in the plug end).By also can finding out among Fig. 4, above-mentioned a pair of plug contacts has formed locational interconnection between the pin contact identical with definition.Single see that the patchcord accessory with switching relation among Fig. 4 comes down to realize that the 3rd contact and the 4th contact exchange from structure.

Fig. 5 show with Fig. 4 in the very close other a kind of switching scheme of switching scheme.Plug end is compared with Fig. 4 in Fig. 5, and the definition of the 3rd plug contacts and the 4th plug contacts is exchanged.See that from structure being not difficult to draw the switching scheme shown in Fig. 5 in fact also is that the 3rd contact of realization and the 4th contact are exchanged.

This shows; Two kinds of patchcord accessories that the switching scheme is reflected shown in Fig. 4 and Fig. 5; See it to be identical from structure; That is to say that the patchcord accessory that utilizes same structure can realize two kinds of switching schemes, can be described as the patchcord accessory that forward conversion and reverse conversion all are applicable to same structure.For example when forward conversion was the switching scheme of describing among Fig. 4, reverse conversion is the switching scheme for describing among Fig. 5 just.

In like manner; Also can know by inference; When the contact in not only a pair of plug contacts and the socket end in the plug end exists cross-coupled the time; Also can realize two kinds of switching schemes by the patchcord accessory through same structure, promptly when the interface standard of the interface standard of the earphone of the actual use of user and terminal equipment earphone jack is exchanged, can use the patchcord accessory of same structure.

Can know that to sum up the patchcord accessory in the present embodiment can be supported two kinds of switching schemes in the opposite direction, therefore have certain versatility.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims

1. a patchcord accessory is characterized in that, comprising: plug end and socket end, and wherein plug end is used to insert the earphone jack of terminal equipment, and socket end is used to insert the plug end of the earphone of actual use;

2. patchcord accessory according to claim 1; It is characterized in that; Exist the definition of at least one pair of plug contacts different on the plug end with the pin contact definition of corresponding position in the socket end; And there is cross reference in the pin contact that said plug contacts is identical with its definition in the position of plug end and socket end.

3. patchcord accessory according to claim 2; It is characterized in that; In the said plug end in each contact; It is different with corresponding two the pin contacts definition of two plug contacts that are defined as ground connection and position in socket end only to be defined as microphone, and with the ground connection that is defined as of the corresponding pin contact, plug contacts position that is defined as microphone, with the microphone that is defined as of the corresponding pin contact, plug contacts position that is defined as ground connection.

4. patchcord accessory according to claim 3 is characterized in that, each plug contacts definition of said plug end is followed successively by L channel, R channel, microphone, ground connection; Each pin contact definition of said socket end is followed successively by L channel, R channel, ground connection, microphone.

5. patchcord accessory according to claim 3 is characterized in that, each plug contacts definition of said plug end is followed successively by L channel, R channel, ground connection, microphone; Each pin contact definition of said socket end is followed successively by L channel, R channel, microphone, ground connection.