CN2768077Y

CN2768077Y - Multimedia computer keyboard

Info

Publication number: CN2768077Y
Application number: CN 200420122211
Authority: CN
Inventors: 马孟明; 李志达
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2004-12-31
Filing date: 2004-12-31
Publication date: 2006-03-29
Anticipated expiration: 2014-12-31

Abstract

The utility model discloses a multimedia computer keyboard, which comprises a keyboard main body and an acoustic splitter, wherein a keyboard loudspeaker is arranged in the keyboard main body; the keyboard main body is connected with a computer; the acoustic splitter is arranged on the keyboard main body; the acoustic splitter receives sound signals from the computer and respectively sends the frequency dividing bands of the sound signals to the keyboard loudspeaker and an externally connected loudspeaker group. The multimedia computer keyboard of the utility model can effectively upgrade two-dimension stereo sound effect to multichannel surrounding sound effect of the 4.1 sound channel and can reduce revealed signal lines.

Description

The multimedia computer keyboard

Technical field

The utility model relates to the multimedia computer keyboard, particularly relates to the multimedia computer keyboard that has partial device and stereo keyboard loudspeaker in a kind of.

Background technology

Computing machine possesses sound (general reference can produce the various sound of sound wave vibrations) fan-out capability to be realized already, but it is when using external loudspeaker, not only need certain space to place loudspeaker, also can too much cause the process of its wiring and reason line too complicated and difficult even, and then cause the computing machine surrounding enviroment to seem in disorder because of connecting line.

Therefore, as shown in Figure 1, the keyboard 2 that has occurred built-in keyboard loudspeaker 22 on the market, this keyboard 2 is electrically connected on the computing machine 1 except utilizing an electric connector 21, also has stereosonic sound source input end 23, this sound source input end 23 is electrically connected with stereo keyboard loudspeaker 22, after between sound source input end 23 of the source of sound lead-out terminal 111 of computing machine 1 and keyboard, being electrically connected to each other, the voice signal that can allow computing machine 1 be exported is exported by the built-in keyboard loudspeaker 22 of this keyboard, except not having the shortcoming that external loudspeaker takes up room, the signal wire between the built-in keyboard loudspeaker 22 also is hidden in the keyboard and does not show in disorder.

Yet the present voice signal of recording is not that " stereo " is simple so already, and the stereo two-dimentional audio that presents can't satisfy people's requirement already, recording of 3-D audio therefore occurred.And most basic 3-D audio is 2.1 sound channels, and it can tell frequency range for left and right loudspeaker and bass horn output, produces 3-D audio with this.

The audio device that say nothing of present sound card, is integrated in mainboard is even classified multichannel as standard around audio already and is equipped with (at least 5.1 sound channels, or even 7.1 sound channel), but user if want enjoy multichannel around audio, then need to buy is loudspeaker group (a preceding left side, the preceding right side of 5.1 sound channels at least, a left side, back, the right side, back, bass horn, and mid-loudspeaker), spend more.

Yet, still have many users at the audio device 11 that only can export two-dimentional audio (stereo) that uses as shown in Figure 1 at present, thinking that neither buying the sound card with 3-D audio in addition replaces existing audio device 11, wish again to use the keyboard 2 with built-in keyboard loudspeaker 22 to reach under the prerequisite of hiding the signal wire effect, how making it to produce 3-D audio just becomes a present research topic.

The utility model content

The purpose of this utility model is to provide a kind of multimedia computer keyboard, has stereosonic keyboard loudspeaker and a partial device in itself, and the multichannel that can effectively the stereo audio of two dimension be upgraded to 4.1 sound channels reduces signal wire simultaneously and exposes around audio.

To achieve these goals, the utility model provides a kind of multimedia computer keyboard, comprise: in be provided with the keyboard body of keyboard loudspeaker, described keyboard body is connected with a computing machine, wherein, also comprise a partial device that is arranged at described keyboard body, described partial device receives the voice signal from described computing machine, and the frequency-division section of described voice signal is sent to described keyboard loudspeaker and an external loudspeaker group respectively.

Above-mentioned multimedia computer keyboard, wherein, described keyboard body is electrically connected with described computing machine by electric connector.

Above-mentioned multimedia computer keyboard, wherein, described electric connector is a USB connector.

Above-mentioned multimedia computer keyboard, wherein, the loudspeaker group that described external loudspeaker group is 2.1 sound channels, described external loudspeaker group and a pair of keyboard loudspeaker constitute the surrounding sound field of 4.1 sound channels each other.

Above-mentioned multimedia computer keyboard, wherein, described partial device comprises at least one sound source input end and at least two partial lead-out terminals, and described sound source input end receives the voice signal from described computing machine, and described partial lead-out terminal connects described external loudspeaker group.

Above-mentioned multimedia computer keyboard, wherein, a frequency band signals of being told by described partial device constitutes the rearmounted output signal sign indicating number of a surrounding sound field.

Keyboard of the present utility model is owing to have stereosonic keyboard loudspeaker and a partial device in itself, can effectively the stereo audio of two dimension be upgraded to the multichannel of 4.1 sound channels around audio, save the expense of buying 5.1 sound channel systems, and the upgrading mode is simple, cost is lower, be easy to install, also have even and can reduce signal wire and expose the succinct effect of distribution.Because the utility model keyboard 4 utilizes USB connector to be used as electric connector, can directly obtain the operation that power supply comes donating bond dish loudspeaker simultaneously, can save the expense of buying transformer from computing machine.

Below in conjunction with drawings and Examples the utility model is elaborated.

Description of drawings

Fig. 1 is the annexation synoptic diagram of existing keyboard and computing machine;

Fig. 2 is the annexation synoptic diagram of the utility model keyboard and computing machine.

Wherein, Reference numeral:

1 computing machine, 11 audio devices

111 source of sound lead-out terminals, 2 keyboards

21 electric connectors, 22 keyboard loudspeaker

23 sound source input ends, 3 computing machines

31 audio devices, 311 source of sound lead-out terminals

4 keyboards, 40 keyboard bodies

41 electric connectors, 42 keyboard loudspeaker

5 loudspeaker groups, 6 partial devices

60 sound source input ends, 61 partial lead-out terminals

62 partial lead-out terminals

Embodiment

As shown in Figure 2, the utility model provides a kind of multimedia computer keyboard, and this keyboard 4 comprises that a keyboard body 40 and is arranged at the partial device 6 in this keyboard body 40.This keyboard 4 is wherein input media of

computing machine

3,3 in this computing machine is in grafting sound card mode or directly be integrated in the mode of mainboard and have an audio device 31, this audio device 31 is for only exporting the old-fashioned audio device of two-dimentional audio (stereo), only comprise a source of sound lead-out terminal 311, be used to provide voice signal and export to loudspeaker.

Wherein, have pair of keys dish loudspeaker 42 in this keyboard body 40, this partial device 6 then has at least one sound source input end 60 and at least two partial lead-

out terminals

61,62, and this partial device 6 is electrically connected with keyboard loudspeaker 42.

The voice signal that the source of sound lead-out terminal 311 that sub 60 receptions of the sound source input end of this partial device 6 come from computing machine 3 is exported, branch sound function by this partial device 6, the voice signal that is received is divided into a plurality of frequency ranges, a frequency range wherein offers built-in keyboard loudspeaker 42 outputs, other frequency range then offers an external loudspeaker group 5 outputs by partial lead-

out terminal

61,62, with this form multichannel around audio.

Other frequency range that this partial device 6 is told, the loudspeaker group 5 that can offer 2.1 sound channels certainly is used as preposition output, that is: a preceding left side, the preceding right side, and the output of bass; 42 on keyboard loudspeaker are by exporting the stereo rearmounted output that is used as, that is: a left side, back, and the right output in back, and the two constitutes the multichannel of 4.1 sound channels around audio.

Can be according to above explanation with the existing audio device 31 that only can export two-dimentional audio, utilize the simplest, cost is lower and can also reduce the mode that signal wire exposes, the multichannel that forms 4.1 sound channels can be saved the price difference of buying 5.1 sound channel systems around audio (3-D audio).

In addition, if the user is employed to be the audio device of 5.1 sound channels, certainly need not change 4.1 sound channels of low order into, the keyboard loudspeaker 42 that only two rearmounted loudspeaker in six loudspeaker of 5.1 original sound channels need be changed into the utility model keyboard 4 get final product, its mode of connection then links together sound source input end 60 of back (rear) the source of sound lead-out terminal of 5.1 sound channel audio devices and keyboard 4 and gets final product, allow the user save and buy a pair of external rearmounted loudspeaker expense, and also have the effect that the minimizing signal wire exposes simultaneously; Certainly, if will use also passable as 5.1 sound channels around the preposition loudspeaker in the audio keyboard loudspeaker 42 of the utility model keyboard 4, as long as its sound source input end 60 is connected with other source of sound lead-out terminal, decides on user's demand or individual hobby etc.

The electric connector 41 of the utility model keyboard 4 uses universal serial bus (Universal Serial Bus, be called for short USB) connector, obtain power supply by utilizing the USB connecting line from described computing machine 3, obtained power supply is enough to supply the operation of keyboard loudspeaker 42, therefore can also save the expense of buying transformer.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. multimedia computer keyboard, comprise: in be provided with the keyboard body of keyboard loudspeaker, described keyboard body is connected with a computing machine, it is characterized in that, also comprise a partial device that is arranged at described keyboard body, described partial device receives the voice signal from described computing machine, and the frequency-division section of described voice signal is sent to described keyboard loudspeaker and an external loudspeaker group respectively.

2. multimedia computer keyboard according to claim 1 is characterized in that, described keyboard body is electrically connected with described computing machine by electric connector.

3. multimedia computer keyboard according to claim 2 is characterized in that, described electric connector is a USB connector.

4. multimedia computer keyboard according to claim 1 is characterized in that, the loudspeaker group that described external loudspeaker group is 2.1 sound channels, and described external loudspeaker group and a pair of keyboard loudspeaker constitute the surrounding sound field of 4.1 sound channels each other.

5. multimedia computer keyboard according to claim 1, it is characterized in that, described partial device comprises at least one sound source input end and at least two partial lead-out terminals, described sound source input end receives the voice signal from described computing machine, and described partial lead-out terminal connects described external loudspeaker group.

6. according to claim 1 or 4 described multimedia computer keyboards, it is characterized in that a frequency band signals of being told by described partial device constitutes the rearmounted output signal sign indicating number of a surrounding sound field.

7. according to claim 1 or 4 described multimedia computer keyboards, it is characterized in that a frequency band signals of being told by described partial device constitutes the preposition output signal sign indicating number of a surrounding sound field.