KR20080055050A - Portable Multifunction Amplifier - Google Patents

Abstract

The present invention relates to a portable multi-function amplifier that can be used indoors or outdoors, and more particularly, it is configured in the form of a box with a handle to be easy to move and carry in a large place such as inside or outside of a large building and easy to install. And to the bottom relates to a portable multifunction amplifier having a wheel and a tripod stand.

In the portable multifunction amplifier according to the present invention, a plurality of panels divided into several layers are inserted in front, and the panels are provided with first and second wireless microphone antennas for receiving a signal from a wireless microphone, and USB terminals are attached to the panel. CD player capable of playing different types of discs, first and second wireless microphone receivers of a multi-channel PLL method capable of arbitrarily selecting and converting frequencies, volumes for adjusting output of various sound sources, and state of charge of the battery And indicators indicating the remaining amount, input / output terminals for connecting to an external device, and a memory card insertion hole into which a memory card can be inserted, and a control circuit and an amplifier circuit for connecting and controlling the devices to each other. Is installed.

Description

       Portable multifunctional amplifier {Wireless portable power amplifier}

1 is a front view showing the appearance of a portable multifunction amplifier according to the present invention;

2 is a rear view of a portable multifunction amplifier according to the present invention;

3 is a side view of a portable multifunction amplifier according to the present invention;

4 is a plan view and a bottom view of a portable multifunction amplifier according to the present invention;

5 is a block diagram showing the configuration of a portable multifunction amplifier according to the present invention;

<Description of Symbols for Main Parts of Drawings>

1: product protection knob 2: first wireless microphone antenna

3: second wireless microphone antenna 4: USB terminal

5: CD player 6: the first wireless microphone volume

7: first wireless microphone receiver 8: second wireless microphone volume

9: second wireless microphone receiver 10: wired microphone volume

11: External input control volume 12: Bass control volume

13: noise howling adjustment volume 14: master adjustment volume

15: echo control volume 16: treble adjustment volume

17: CD player volume 18: battery charge indicator

19: Battery level indicator 20: External device input / output terminal

21: power switch 22: memory card slot

23: wired microphone input terminal 24: external speaker output terminal

25: 5.1-channel line output terminal 26: Optical cable audio output terminal

27: fuse 28: adapter power and charging terminal

29: TV video output terminal 30: S-video output terminal

31: Component video output terminal 32: Wheel for product movement

33: stand holder 34: handle for moving the product

The present invention relates to a portable multi-function amplifier that can be used indoors or outdoors, and more particularly, in a large place such as inside a large building or outdoors, by using the built-in battery power without the need for a separate AC power to move and carry The present invention relates to a portable multifunctional amplifier having a box-shaped handle with a handle for easy installation and easy installation, and having a wheel and a triangular stand holder.

Conventional speaker amplifier is limited to mobility because it is composed only of a wire, and when using a wireless microphone instead of such a wire, a separate wireless microphone receiver must be provided to connect to the amplifier, not only incurring additional additional costs The connection between the speaker amplifier and the connecting device becomes complicated. In particular, since the conventional method is usually fixed only in a limited place in which the AC power is installed, there is a restriction that it is not freely portable or movable as described above, and therefore cannot be properly installed where needed.

The present invention has been made in order to improve the problems of the speaker amplifier according to the prior art as described above, in the form of a box with a handle to be easy to move and carry in a large place such as inside or outside of a large building and easy to install It is composed, and the technical problem to provide a portable multi-function amplifier having a wheel and a triangular stand holder on the bottom.

In order to achieve the above object, in the portable multifunction amplifier according to the present invention, a plurality of panels divided into several layers are inserted in front of the portable multifunction amplifier, and the first and second panels for receiving signals from a wireless microphone are inserted in the panels. Wireless microphone antenna, CD player with USB terminal and various types of discs can be played, and the output of various first and second wireless microphone receivers and volumes of various multi-channel PLL system that can arbitrarily select and convert frequencies. Volumes for adjustment, indicators indicating the state of charge and remaining charge of the battery, input / output terminals for connecting to an external device, and a memory card insertion slot for inserting a memory card are installed. It characterized in that the control circuit and the amplification circuit for connecting and controlling each other is installed.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. In the following description, the same reference numerals are given to the same members, and overlapping descriptions are omitted.

1 to 4 are a front view, a rear view, a side view, and a plan view and a bottom view respectively showing the appearance of a portable multifunction amplifier according to the present invention. As shown, the present invention has a box shape of a cube, and a product protection knob 1 is attached to each of the upper end and the lower end thereof, and both sides of the product protection knob 1 of the upper end each receive a voice signal from a wireless microphone. First and second wireless microphone antennas (2, 3) are provided, the lower part of the product protection knob (1) in the upper portion of the various types of disks, for example, DVD, Midi DVD, DVD-R, SVCD, VCD, Audio CD, CD-R, CD-RW, MP3 CD, MP-2 CD, etc. can be played or a karaoke sound source can be played. A CD player 5 with a USB terminal 4 is provided on one side thereof. .

The lower part of the CD player is for adjusting the volume input from the first and second wireless microphone receivers 7 and 9 of the multi-channel PLL method and the first and second wireless microphones. First and second wireless microphone volume 6, 8 is provided, the lower portion of the wired microphone volume for adjusting the volume of the wired microphone as a volume for adjusting the output of various sound sources, the external input device (AUX External input control volume 11 for adjusting the volume of the), bass control volume 12 for adjusting the low volume of the sound output to the speaker, for adjusting the howling generated by the sound output to the speaker microphone Noise howling adjustment volume (13), master adjustment volume (14) for adjusting the overall volume of the sound output to the speaker, to give an echo effect to the sound output to the speaker An echo control volume 15, a high volume control volume 16 for adjusting the high volume of the sound output to the speaker, a CD player volume 17 for adjusting the volume of the CD player and the like.

In addition, the lower portion of the panel provided with the volume is provided with a battery charge indicator 18 and a battery remaining indicator 19 indicating the state of charge and the remaining amount of the battery, the battery charge indicator ( 18) may be displayed in three levels of Full, Charging, and Low Battery, and the battery level indicator 19 may be displayed in five levels, such as 10%, 30%, 50%, 70%, 90%, and the like. .

In addition, an input / output terminal for connecting to an external device and a memory card insertion hole for inserting a memory card are installed below the panel including the battery indicator light. The input / output terminal is composed of an external device input / output terminal 20 to which an external device (AUX) is connected, a wired microphone input terminal 23 to which a wired microphone is connected, and an external speaker output terminal 24 to which an external speaker is connected, and the like. On one side, a power switch 21 for turning on / off the power of the amplifier is provided, and a memory card insertion hole 22 is formed at a predetermined position in the center of the panel provided with the input / output terminals and the power switch. In the embodiment of the present invention, the SD MMC type memory card may be inserted, but the present invention is not limited thereto.

Subsequently, the bottom panel includes terminals for outputting audio and video signals and connecting them to an external device. The audio signal is output through the 5.1-channel line output terminal 25 and the optical cable audio output terminal 26, and the video signal is a TV video output terminal 29, S-video output terminal 30 and the component video output terminal ( 31) is output. In addition, an adapter power source and a charging terminal 28 are further provided to connect the adapter as other terminals for power supply and charging, and a fuse 27 for protecting the device from overvoltage / overcurrent and temporary power fluctuations is provided. It is installed.

In addition, although not shown, a control circuit and an amplification circuit are provided in the amplifier to connect and control the devices, and the lower bottom surface is provided with a product movement wheel 32 to freely move the product. At the center of the bottom surface, a stand holder 33 is installed to firmly fix the product to a tripod stand or the like. In addition, the upper part of the amplifier is provided with a handle 34 for moving the product so that the user can easily carry or move the product.

2 and 3, the amplifier is provided with a speaker on the opposite side on which the panels are installed, and a control circuit and an amplification circuit are provided inside the box shape to connect and control the devices as described above. In addition, referring to Figure 4 is attached to the handle for moving the product for carrying and moving the product in the upper portion of the box form (see Figure 4 (a)), the lower portion of the box form for firmly fixing the product to a tripod stand, etc. The stand holder is installed (see FIG. 4B).

5 is a block diagram showing the configuration of a portable multifunction amplifier according to the present invention. Referring to the drawings, first, the signal of the wireless microphone input to the wireless microphone input unit 201 is input to the first preamplifier 210 through the voice signal detection unit 207 and the echo control unit 209, and the wired microphone input unit 202. The signal of the wired microphone, which is inputted into the R, is input to the first preamplifier 210 through the echo control unit 209 without passing through the voice signal detection unit.

In addition, the signal input to the CD player 203 from the CD, DVD, MP3, etc. and the signal input to the external device voice input unit 204 are respectively input to the first preamplifier 210, and thus the first preamplifier ( Signals input to 210 are distributed and output to the external device audio output unit 213 or the 5.1-channel line output 214 or amplified by the power amplifier 215 and output through the speaker 218.

The TV signal input to the TV signal input unit 205 is amplified by the second preamplifier 211 through the TV signal receiving unit 208 and then output to the image signal output unit 216, and the battery state display unit 212 ) Receives information about the state of charge and remaining amount of the battery from the battery power and charging unit 206 and the battery state checker 217 and displays it.

As described above, the portable multifunction amplifier according to the present invention is powered by the power switch 21 and is received by the wired microphone input terminal 23 or the first and second wireless microphone antennas 2 and 3 when the amplifier is operated. The audio signal of the wired / wireless microphone and the audio signal reproduced by the CD player 5 are output to the speaker through a control circuit and an amplification circuit installed therein, and the video signal is output by a separately built-in TV signal input and receiver. do.

Such operation is performed by a power source directly connected to a power source or a power source that is charged to a battery through a control circuit through an adapter power source and a charging terminal 28. The audio and video signals are inputted and outputted from an external device by various input / output terminals. If it is possible to use an external speaker in addition to the speaker provided in this amplifier, the external speaker output terminal 24 is used to connect.

The present invention as described above is not limited only to the above-described embodiment and the accompanying drawings, and various modifications and changes can be made without departing from the spirit of the present invention. It will be apparent to those who have it.

As described above, the portable multi-function amplifier according to the present invention is configured in a box-type with a handle for easy movement and portability and easy installation in a wide place such as an interior or an outdoor of a large building, and a wheel and a triangular stand holder on the bottom thereof. By providing the audio and video signals according to various sound sources anywhere there is an effect.

Claims (12)

In the box-type amplifier is provided with a plurality of panels divided into several layers on the front and a speaker on the back, and a moving handle on the top, The panels include first and second wireless microphone antennas for receiving a signal from a wireless microphone, a CD player attached to a USB terminal and capable of playing various types of discs, and a multi-channel PLL scheme capable of arbitrarily selecting and converting frequencies. The first and second wireless microphone receivers, the volume, the volume for adjusting the output of various sound sources, indicators indicating the battery's state of charge and remaining capacity, input / output terminals for connecting to an external device, and a memory card. A memory card insertion hole is installed to insert the portable multifunction amplifier installed therein with a control circuit and an amplification circuit for connecting and controlling the devices. The method of claim 1, wherein the CD player, A portable multifunction amplifier, which plays one of a disk group consisting of DVD, Midi DVD, DVD-R, SVCD, VCD, Audio CD, CD-R, CD-RW, MP3 CD, and MP-2 CD. The method of claim 1, wherein the CD player, A portable multifunction amplifier characterized by reproducing a karaoke sound source. The method of claim 1, A portable multifunction amplifier further comprising a wireless multi-channel receiver of a multi-channel PLL system capable of arbitrarily selecting and converting frequencies. The method of claim 1, wherein the indicator light, A portable multifunction amplifier, characterized in that it is divided into at least two stages and has a battery charge indicator indicating the state of charge of the battery. The method of claim 1, wherein the indicator light, A portable multifunction amplifier, characterized in that it is divided into at least two stages and has a remaining battery level indicator indicating the remaining battery status. The method of claim 1, The box is a portable multifunction amplifier, characterized in that it has a wheel for movement in the lower predetermined position. The method of claim 1, The box is a portable multifunction amplifier, characterized in that it has a stand holder in the lower center. The method of claim 1, A portable multifunction amplifier, comprising: an input / output terminal to which at least one audio external device can be connected. The method of claim 1, A portable multifunction amplifier, comprising: an input / output terminal to which at least one video external device can be connected. The method of claim 1, And a USB terminal at a predetermined position of the CD player. The method of claim 1, The panel further comprises a memory card insertion hole at a predetermined position.

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