CN1627863A

CN1627863A - USB speaker switching device

Info

Publication number: CN1627863A
Application number: CN 200310118293
Authority: CN
Inventors: 孙思玮
Original assignee: ZHIJIA MULTIMEDIA CO Ltd
Current assignee: ZHIJIA MULTIMEDIA CO Ltd
Priority date: 2003-12-11
Filing date: 2003-12-11
Publication date: 2005-06-15

Abstract

The USB switching device for speaker includes following parts: USB port setup inside computer system provides power supply and outputs sound signal from computer system; and a body of external speaker includes USB plug prepared from free end of power line as well as built in a signal processing unit, a switch unit and a amplifier. Power source provided from USB port and sound signal through signal processing unit are switched to body of speaker to be sounded by switch unit. Different combination of sound can be selected from build in speaker and external speaker in order to enhance sounding effect of computer system.

Description

USB loudspeaker switching device shifter

Technical field

The relevant a kind of USB loudspeaker switching device shifter of the present invention, especially relevant a kind of computer loudspeaker with switching device shifter that provide.

Background technology

Press, the connected mode of known computer loudspeaker, as shown in Figure 1, pick out a power line 11 by one of them speaker body 1R, and the transformer 12 of external AC commentaries on classics DC is plugged on the AC socket 2 on this power line 11, become two computer loudspeaker 1R, 1L required voltage with the voltage transitions with civil power AC110/220V, perhaps this speaker body promptly is built-in with transformer; Only, the power line 11 of these loudspeaker must pull the place of AC socket 2, it makes the electric wire of computer system periphery persistant, cause the puzzlement in the use, and must there be AC to change the transformer of DC, no matter be built-in or external, the volume of this transformer and weight are all bigger, so will cause the inconvenience of carrying.

So also occur alternative loudspeaker connected mode on the market, be for announcing " USB Portable megaphone " novel patent No. 515619, as shown in Figure 2, it is to be built-in with micropkonic speaker body 3R with one, 3L, free end with its power line 31 forms a USB plug 32 kenels, and be connected with the USB port 41 of computer systems 4 such as PC computer or notebook computer, the direct driving one of power supply of being supplied with USB port 41 is built in speaker body 3R, the low-voltage driving public addressor amplifier 33 of 3L, the sound signal that makes computer system 4 by sound signal transmission line 34 through low-voltage driving analogy public addressor amplifier 33, after DC power supply driving amplification, by loudspeaker 35 outputs; Another loudspeaker connected mode is more arranged, as shown in Figure 3, directly by the USB port 41 of computer system 4 provide a power supply and a sound signal through signal processing unit 34 again to public addressor amplifier 33, and make loudspeaker 35 sounding of speaker body 3R, 3L.

But, though more than two kinds of settings that the loudspeaker connected mode can be saved transformer, be connected directly to the power line that USB supplies, but the speaker body sounding that the sound signal of computer system only can be external thus, make the built-in loudspeaker 42R, the 42L that are arranged at computer system originally can't sounding.

Summary of the invention

Main purpose of the present invention, be to provide a kind of USB loudspeaker switching device shifter, it is the USB port that is provided with in the computer system by, can provide power supply and with the output of the sound signal of computer system, an and external loudspeaker body, peg graft by USB plug and USB port that the free end of its power line is set as, it is built-in with a signal processing unit, switch unit and amplifier; Especially, power supply that USB port is supplied and sound signal again by the speaker body of switch unit sounding that switching is desired, can be selected the different sounding combinations of built-in loudspeaker or external loudspeaker body, to increase the sounding effect of computer system via signal processing unit.

Description of drawings

Figure 1 shows that the power supply connected mode structural perspective of existing computer loudspeaker;

Figure 2 shows that the power supply connected mode structural perspective of another existing USB loudspeaker;

Figure 3 shows that the power supply connected mode electronic loop schematic diagram of existing USB loudspeaker again;

Figure 4 shows that the electronic loop schematic diagram of USB loudspeaker switching device shifter among the present invention;

Figure 5 shows that the structural upright exploded view of USB loudspeaker switching device shifter among the present invention;

Figure 6 shows that the different sounding effect schematic diagrames of USB loudspeaker among the present invention;

Figure 7 shows that the user mode reference diagram of USB loudspeaker among the present invention;

Figure 8 shows that another user mode reference diagram of USB loudspeaker among the present invention;

Figure 9 shows that the schematic diagram of switch unit among the present invention.

[figure number explanation]

Speaker body 1R, 1L power line 11

Transformer 12 sockets 2

Speaker body 3R, 3L power line 31

USB plug 32 amplifiers 33

Signal processing unit 34 loudspeakers 35

Sound signal transmission line 36 computer systems 4

USB port 41 built-in

loudspeaker

42R, 42L

External loudspeaker body 5R, 5L power line 51

USB plug 52 signal processing units 53

Application 531 switch units 54

Internal circuit 541 amplifiers 55

Loudspeaker 56 switching device shifters 60

Embodiment

For the clear structure of the present invention of your auditor is formed, and the overall operation mode, conjunction with figs. is described as follows now:

USB loudspeaker switching device shifter of the present invention, the basic structure of its whole loudspeaker switching device shifter is formed, and shown in the embodiment of Fig. 4 and Fig. 5, is to include:

One USB port 41 is to be provided with in the computer system 4 for other electronic products to peg graft, and can provide power supply and with the sound signal output of computer system 4.

One external loudspeaker body 5R, 5L, peg graft with USB port 41 by the USB plug 52 that the free end of its power line 51 is set as, it is built-in with a signal processing unit 53, switch unit 54, amplifier 55 (can be analogy amplifier or digital amplifier) and loudspeaker 56, wherein, this signal processing unit 53 can be adjusted volume or the surrounding sound field effect of external loudspeaker body 5R, 5L, and be provided with an application 531, this application 531 is to be applicable to some specific computer system 4, and the sound channel of its built-in

loudspeaker

42R, 42L can be opened.

According to this, the power supply that USB port 41 is supplied directly drives one via signal processing unit 53 and is built in speaker body 5R, the amplifier 55 of 5L, and the sound signal that makes computer system 4 simultaneously by signal processing unit 53 through amplifier 55, after DC power supply driving amplification, by loudspeaker 56 outputs, again by switch unit 54 switch desire the speaker body of sounding, can select the built-in loudspeaker 42R of

computer system

4,42L or external loudspeaker body 5R, the different sounding combinations of 5L, as shown in Figure 6, make and form different sounding sound channels, identical as second kind of sounding combined effect with the effect of 2.1 sound channels, to increase the sounding effect of computer system.

Certainly, its switch unit 54 can as shown in Figures 7 and 8, can be switched different speaker body sounding by user's demand in the external switching device shifter 60 of external loudspeaker body 5R, 5L.Moreover, the signal switching mode of this switch unit 54 in external loudspeaker body 5R, 5L, can be as shown in Figure 9, it receives the sound signal by signal processing unit 53, again through the internal circuit 541 of switch unit 54 thus switch select desire the speaker body of sounding, and sound signal is sent to this speaker body, and make it sounding, and reach different sounding effect.

As mentioned above, USB loudspeaker switching device shifter of the present invention can provide the computer loudspeaker with switching device shifter, really to meet the patent of invention condition, so offer the application of patent of invention in accordance with the law; Only, above implementation and graphic shown in, only be one of preferred embodiment of the present invention, be not in order to the present invention of this limitation, therefore, every all be familiar with the personage of this creation skill, that does according to spirit of the present invention is approximate with structure of the present invention, device, feature etc., identical, all should belong to of the present invention founding within purpose and the claim.

Claims

1, a kind of USB loudspeaker switching device shifter includes:

One USB port is to be provided with in the computer system for other electronic products to peg graft, and can provide power supply and with the sound signal output of computer system;

One external loudspeaker body is pegged graft by USB plug and USB port that the free end of its power line is set as, and it is built-in with a signal processing unit, switch unit and amplifier;

One switches the unit, and it is built in the external loudspeaker body;

According to this, the power supply that USB port is supplied directly drives one via signal processing unit and is built in the amplifier of speaker body, and the sound signal that makes computer system simultaneously by signal processing unit through amplifier, with DC power supply drive amplify after, export by loudspeaker; This switch unit receives the sound signal of this signal processing unit, again by switch unit switch desire the speaker body of sounding, can select the different sounding combinations of built-in loudspeaker or external loudspeaker body, make to form different sounding sound channels, to increase the sounding effect of computer system.

2, USB loudspeaker switching device shifter as claimed in claim 1 wherein is provided with an application in this signal processing unit.

3, USB loudspeaker switching device shifter as claimed in claim 1, wherein, this signal processing unit can be adjusted the surrounding sound field effect of external loudspeaker body.

4, USB loudspeaker switching device shifter as claimed in claim 1, wherein, this signal processing unit can be adjusted the volume of external loudspeaker body.

5, USB loudspeaker switching device shifter as claimed in claim 1, wherein, this switch unit can be in the external switching device shifter of external loudspeaker body.

6, USB loudspeaker switching device shifter as claimed in claim 1, wherein, this amplifier can be the analogy amplifier.

7, USB loudspeaker switching device shifter as claimed in claim 1, wherein, this amplifier can be digital amplifier.