CN2681403Y

CN2681403Y - A line transmission device for digital equipment

Info

Publication number: CN2681403Y
Application number: CNU2004200089040U
Authority: CN
Inventors: 沈永鹏
Original assignee: Beijing Huaqi Information Digital Technology Co Ltd
Current assignee: Beijing Huaqi Information Digital Technology Co Ltd
Priority date: 2004-03-29
Filing date: 2004-03-29
Publication date: 2005-02-23
Anticipated expiration: 2014-03-29

Abstract

Disclosed is a line transmission device for digital equipment, at least including a line input plug, a transfer line and a USB standard plug. The line input plug is a long cylinder, and the plug is in turn distributed with four annular contact points from the top to the tail; an insulating rubber is isolated between the contact points; the transfer line is a four-core cable. As a novel USB data transmission line, the line input plug of the line transmission device inserts deep into the digital equipment, and connects tightly with the digital equipment, so as to make the connection of the USB data transmission line and the digital equipment much firm and not easy to loose; meantime, the line transmission device can use a same plug hole with an audio output, which not only simplifies the interface design of the digital equipment, but also reduces the use-cost of the users, and makes it convenient for the users to use, and thus the line transmission device has favorable practical effect.

Description

A kind of circuit transmitting device of digital equipment

Technical field

The utility model relates to the circuit transmitting device in a kind of basic circuit field, the particularly a kind of transmission line of relevant input plug, four-core and usb data transmission line of the digital equipment that the USB standard plug is constituted of comprising.

Background technology

Present digital equipment, comprise MP3 walkman, portable hard drive, digital recording pen, digital camera and Digital Video etc., employed usb data transmission line, its line input mouth be multiple mutually can not the compatible square or platypelloid type port that uses, multiple usb data transmission line uses respectively, major part can not substitute use, if first wife's usb data transmission line of this digital equipment leaves behind or loses, then can't finish transfer of data.And square or platypelloid type port mostly exists the contact cross direction profiles, and plug is connected the degree of depth with jack short, connect not tight, the characteristics that come off easily.

And, on the digital equipment that audio frequency output is arranged, comprise MP3 walkman, digital recording pen and Digital Video etc., usb data output and audio frequency output are to be finished by two cover circuits, need to be provided with two cover output plugholes on the digital equipment, have increased extra accessory, cost is higher, uses comparatively loaded down with trivial details.

This shows that above-mentioned existing digital playback equipment still has many defectives, and demands urgently further being improved.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of circuit transmitting device of digital equipment.

For this reason, the utility model is achieved through the following technical solutions above-mentioned purpose:

A kind of circuit transmitting device of digital equipment, at least comprise circuit input plug, transmission line and USB standard plug, described circuit input plug is a cylinder type, from the plug top to the plug bottom, four the belt contacts that distribute successively have electro-insulating rubber to isolate between the contact; Described transmission line is a quad, connection line input plug and USB standard plug.

The circuit transmitting device of aforesaid digital equipment also comprises subsidiary wire, female mouthful of the USB that described subsidiary wire one end is a standard, and the other end is common earphone.

The circuit transmitting device of aforesaid digital equipment, four belt contacts of described circuit input plug to the plug bottom, are followed successively by the first belt contact, the second belt contact, the 3rd belt contact and row contact, Fourth Ring from the plug top; The position of the described first belt contact, the second belt contact and row contact, Fourth Ring is corresponding to the position of the first belt contact, the second belt contact and the 3rd belt contact of common headphones plug.

The circuit transmitting device of aforesaid digital equipment in the described subsidiary wire, is connected respectively to the L channel and the R channel of common headphones with the data wire that data terminal D+ in the USB standard mouth links to each other with D-; The data wire that links to each other with ground wire in the USB standard mouth is as the ground wire of earphone.

The circuit transmitting device of aforesaid digital equipment, the power end in the described subsidiary wire in the female mouth of USB is put sky or is connected microphone.

The unified column type that uses length of circuit input plug of the present utility model, it is longer to go deep into digital equipment inside, tightr with being connected of digital equipment, makes the usb data transmission line firm with being connected of digital equipment, difficult drop-off; Can use same jack with audio frequency output simultaneously, promptly simplify the Interface design of digital equipment, reduce user's use cost again, make things convenient for user's use, have good actual effect.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model;

Fig. 2 is the structure principle chart of the utility model subsidiary wire.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

See also shown in Figure 1, be circuit theory diagrams of the present utility model, at least comprise circuit input plug 1, transmission line 2 and USB standard plug 3, described circuit input plug 1 is a cylinder type, from the plug top to the plug bottom, four the belt contacts that distribute successively have electro-insulating rubber to isolate between the contact; Described transmission line 2 is a quad, connection line input plug 1 and USB standard plug 3.The utility model is connected with circular hole output plughole on the digital equipment, and it is longer to make plug go deep into digital equipment inside, tightr with being connected of digital equipment, makes the usb data transmission line firm with being connected of digital equipment, difficult drop-off.

The circuit transmitting device of the utility model digital equipment can also comprise subsidiary wire, female mouthful of the USB that described subsidiary wire one end is a standard, and the other end is common stereophone.

See also shown in Figure 2, structure principle chart for the utility model subsidiary wire, when digital equipment needs output audio signal, audio signal is transferred on stereophone 6 and 7 by female mouthful 4 of USB and the transmission line 5 that is connected with USB standard plug 3, thereby the circuit transmitting device is used as the stereophone circuit.

By adding subsidiary wire, circuit transmitting device of the present utility model also can be used as common earphone and uses not as the USB transmission line time.Certainly, this needs digital equipment to support this function.

When digital equipment need be exported the USB normal data signals, but the USB output interface that is complementary on the circuit input plug 1 linking number decoding apparatus, transmission line 2 by four-core is connected on the USB standard plug 3, and USB standard plug 3 can be connected as the usb data transmission line with the standard USB jack on computer or the miscellaneous equipment and uses.

When digital equipment needs output audio signal, but the same output interface that is complementary on the circuit input plug 1 linking number decoding apparatus as audio output interface, by three cores in the transmission line 2 of four-core with audio signal transmission to USB standard plug 3.

If the other end of the utility model subsidiary wire also can comprise a microphone.Since three cores of the transmission line 2 of the utility model four-core with audio signal transmission to USB standard plug 3, another core as the USB connecting line time as electric power connection line, and when connecting subsidiary wire, electric power connection line is connected with the microphone of subsidiary wire, thereby the connecting line that connecting line of the present utility model also be can be used as have microphone use.

The circuit transmitting device of the utility model digital equipment, four belt contacts of described circuit input plug to the plug bottom, are followed successively by the 12, the 3rd belt contact 13 and row contact, Fourth Ring 14,11, the second belt contact, the first belt contact from the plug top; The position of described first 11, the second belt contact 12, belt contact and row contact, Fourth Ring 14 is corresponding to the position of the first belt contact, the second belt contact and the 3rd belt contact of common headphones plug.She Ji benefit is like this, and circuit transmitting device of the present utility model can insert in the common earphone plug hole, cooperates with subsidiary wire, can be used as common headphones and uses, and has enlarged the scope of application of the present utility model.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of circuit transmitting device of digital equipment, at least comprise circuit input plug, transmission line and USB standard plug, it is characterized in that: described circuit input plug is a cylinder type, from the plug top to the plug bottom, distribute successively four or more belt contact has insulating material to isolate between the contact; Described transmission line connection line input plug and USB standard plug.

2, the circuit transmitting device of digital equipment according to claim 1 is characterized in that: also comprise subsidiary wire, and female mouthful of the USB that described subsidiary wire one end is a standard, the other end is common earphone or microphone.

3, the circuit transmitting device of digital equipment according to claim 1 and 2, it is characterized in that: described circuit input plug comprises four belt contacts, to the plug bottom, be followed successively by the first belt contact, the second belt contact, the 3rd belt contact and row contact, Fourth Ring from the plug top; The position of the described first belt contact, the second belt contact and row contact, Fourth Ring is corresponding to the position of the first belt contact, the second belt contact and the 3rd belt contact of common headphones plug.

4, the circuit transmitting device of digital equipment according to claim 3 is characterized in that: in the described subsidiary wire, be connected respectively to the L channel and the R channel of common headphones with the data wire that data terminal D+ in the USB standard mouth links to each other with D-; The data wire that links to each other with ground wire in the USB standard mouth is as the ground wire of earphone.

5, the circuit transmitting device of digital equipment according to claim 4 is characterized in that: the power end in the described subsidiary wire in the female mouth of USB is put sky or is connected microphone.