KR100896821B1 - Electronic teaching desk - Google Patents

Abstract

The present invention relates to an electronic lecture table, comprising: a main body housing, an upper plate forming an upper portion of the main body housing, and an electronic lecture table including a power amplifier and a speaker housed in the main body housing. After the adjustment of the direction angle, the speaker is a directional panel speaker and a protective grille formed on the upper plate of the electronic table and the main body housing beneath the protective grille so as to emit sound in a desired direction desired Consisting of a built-in small sized sound collector, such as a microphone installed in the reverse direction microphone, can be adjusted in a variety of directions, and the sound is collected by the reverse direction microphone of the small built-in speaker built-in speaker to the removable directional panel speaker There is an effect that can be output.

Main housing, top panel, directional panel speaker, small internal sound collector, reverse directional microphone, personal computer, LCD monitor

Description

ELECTRONIC TEACHING DESK

The present invention relates to an electronic lecture table, and in particular, a built-in small sized sound collector equipped with a directional panel speaker and a reverse directional microphone installed in the electronic lecture table in which a personal computer is installed while being able to control all devices of the micro pre system. The present invention relates to an electronic teaching table capable of controlling a power amplifier, a beam projector, and the like stored in the removable directional panel speaker and the electronic lecture table by a remote controller.

In general, lecturers write in chalk on the blackboard while teaching lecturers by fostering, but recently, electronic teaching tables used in electronic lecture systems mobilized with various high-tech equipments have been widely used due to the development of educational equipment and the development of multimedia systems.

The electronic teaching desk used by the instructor for the electronic lecture is provided with a computer system for controlling the electronic educational equipment in the classroom, and is provided with a mouse, a keyboard, a pen display for controlling the computer system. In addition, the lecture contents of the lecturer is output as a video or text on the screen by the beam projector, or through the speaker system installed in the ceiling, wall or electronic classroom by gathering the micro lecturers installed on the electronic table.

However, the speaker system as described above mainly uses the ordinary speaker installed on the ceiling and the ordinary speaker installed in the electronic lecture hall, but the speaker installed on the ceiling in the speaker system has a limitation in outputting low-frequency sound, Speakers installed in the classroom could not be supplemented and fixed only in one direction, so there was a limit to output of instructors in various directions.

In addition, the microphone is connected to the flexible tube placed on top of the electronic lecture hall, there was an inconvenience to move the flexible tube in accordance with the instructor's movement to change the position of the microphone, and the computer system installed in and around the electronic lecture table And various electronic equipments, etc. cannot be integrated in one place, and there is inconvenience in that the operation of the computer system and each electronic equipment must be controlled one by one.

The present invention has been made to improve the above-mentioned problems, the object is to install a speaker installed in the electronic table as a removable directional panel speaker, can be repaired at any time and compensate for low frequencies In this regard, the present invention provides an electronic teaching desk for outputting lecturers' growth in various directions by freely adjusting the orientation angles up, down, left and right according to the space size of the lecture room or the condition of the lecture site.

Another object of the present invention is to store a small built-in sound collector installed with a reverse directional microphone in the electronic lecture hall, and operate the reverse directional microphone of the built-in small sound collector so that the instructor's training can be well gathered and output to the removable directional panel speaker. In providing.

Still another object is to install a remote controller in the electronic desk so that the computer system installed in the electronic desk by the remote controller and the plurality of ceiling sound collectors and various electronic equipment around the electronic desk can be controlled integrally. In providing a teaching table.

In order to achieve the above object, the electronic lecture table of the present invention comprises a main plate and an upper plate forming an upper portion of the main body housing, and an electronic table including a power amplifier and a speaker housed in the main housing, wherein the speaker is a panel. When driving the acoustic diaphragm to be used to drive the vibration driver to output the voice, and can be adjusted to the direction angle while moving back and forth and left and right, and after adjusting the direction angle, the speaker can emit sound toward the desired direction desired As a removable directional panel speaker, the removable directional panel speaker is formed in a rectangular plate shape is provided with an angle adjusting pin in the upper and lower, the angle having an angle adjusting groove in the upper and lower portion of the front of the main body housing. The control panel is provided, two from the inside of the front of the main housing The directional panel speaker is arranged side by side in the longitudinal direction, the removable directional panel speaker is characterized in that the angle adjustment pin is inserted into the angle adjustment groove formed in the angle adjustment plate is installed so that the angle is adjusted up, down, left and right.

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In addition, it is preferable to further include a built-in small sound collector which is housed in a protective grille network formed on the upper plate of the electronic teaching table and a reverse-directional microphone is installed in the main body housing under the protective grille network.

The reverse directional microphone may further include a microphone case having a sound inlet through which sound is introduced into an outer circumferential surface thereof; A circuit board embedded in the microphone case and having an opening for receiving sound; A microphone chip installed in the opening; And a jack connector formed at the rear of the microphone case, and the reverse direction microphone is coupled to the central portion of the reflector of the small sized sound collector.

In addition, a drawer plate that is recessed in the sliding type between the main body housing and the top plate; A keyboard disposed on the drawer plate; A personal computer (PC) housed in the main body housing; an LCD monitor that is housed in the main body housing and is exposed in correspondence with an upper plate surface; A mouse pad portion recessed on one surface of the upper plate and a mouse disposed on the mouse pad portion; And a PC connector formed on one side of the main body housing.

In addition, the other side of the top plate is formed with a sliding door, the LCD monitor is accommodated in accordance with the top plate surface of the inner top plate formed under the sliding door, the position of the protective grille on the inner top surface on the LCD monitor It is preferable that the internal grill net is formed in the.

In addition, an auto switcher (Auto Switcher) accommodated in the main body housing; Feedback reducer; Volume / power controller (VOL / PWR Controller); Play equipment; Audio & Video Editing Terminal Server; A beam projector formed on the other side of the main body housing; And a plurality of ceiling collectors; Ceiling speakers; It is preferable to further include a micro pre-system consisting of a camera.

In addition, it is provided on one side of the top plate, the power amplifier or a plurality of ceiling type collectors, ceiling speakers, cameras, the auto switcher (Feedback Switcher), feedback reducer (Play) reducer (Play) equipment, volume / power It is preferable to further include a remote controller for controlling the operation of the micro presystem consisting of a controller (VOL / PWR Controller), an audio and video editing terminal server, and a beam projector. .

According to the electronic teaching table of the present invention, the orientation angle can be adjusted by the directional panel speaker installed in the electronic teaching table, and thus the instructor can be output in various directions, and the low frequency sound is compensated for, so that the sound is rich and removable. There is an advantage that can be repaired from time to time.

In addition, the detachable directional panel speaker outputs a constant sound pressure, so in the case of a room of about 100 pyeong, there is no difference in sound pressure even near or far, so the sound can be heard equally and comfortably.

In addition, even if it is far away by the reverse-directional microphone of the small built-in sound collector installed inside the electronic table, the instructor's development can be gathered well and output to the directional panel speaker so that the instructor's development can be more clearly output, and thus the conventional microphone There is no need to talk close to it.

In addition, the remote controller installed in the electronic lecture hall has an advantage that can be integrated to control the operation of the computer system and the plurality of ceiling-type sound collector and electronic equipment around the electronic lecture desk installed in the electronic lecture hall.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the electronic teaching table according to the present invention will be described in detail. The present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, only this embodiment to make the disclosure of the present invention complete and to those skilled in the art to fully understand the scope of the invention It is provided to inform you.

1 is a perspective view of an electronic lecture table according to an embodiment of the present invention, Figure 2 is a front view of the electronic lecture table according to an embodiment of the present invention, Figure 3 is a side view of the electronic lecture table according to an embodiment of the present invention 4 shows another side view of an electronic lecture table according to an embodiment of the present invention.

As shown in FIGS. 1 to 4, the electronic teaching table of the present invention has a main housing 11 and an upper plate 12 constituting an upper portion of the main housing 11 as a base frame, and the front surface of the main housing 1. There are a myriad of perforations 32 are formed, the elongated curved protective plate 33 is installed in the longitudinal direction on the front of the main body housing 11 is also formed a myriad of perforations 32 on the front, and rotates on one side At the same time the beam projector 13 is installed, the other side is provided with a connector 14 for the PC and a vent 15 for preventing overheating of the electronic equipment in the electronic table.

The top plate 12 is installed obliquely so that the front side is high and the rear side is low, and a mouse pad portion 17 on which the mouse 16 is placed is placed on one side of the top plate 12 in a recessed state. The remote controller 18 is provided on the pad portion 17, and a protective grill net 19 is formed on the other surface of the upper plate 12.

As shown in FIGS. 5 and 7, a built-in small sized sound collector 30 having a detachable directional panel speaker 31 and a reverse directional microphone 10 installed therein is housed in the electronic lecture table formed as described above.

In addition, a personal computer (not shown) is accommodated in the main body housing 11, and a screen of the LCD monitor 24 accommodated in the main body housing 11 is exposed on the surface at the center of the other surface of the upper plate 12. Underneath, a non-slip jaw (25) is installed to prevent the lecture booklet or notebook computer, etc. that are placed on the top plate 12 to slip off, and emerges in a drawer type between the main body housing 11 and the top plate 12 of the rear. Drawer plate 26 is installed to put a keyboard (not shown) on the drawer plate (26).

At this time, the surface of the top plate 12 facing the screen of the LCD monitor 24 is made of tempered glass is not broken or scratched structure to protect the LCD monitor 24.

In addition, the front and rear of the main body housing 11 is provided with an opening and closing door 28 to be locked by the locking device (28a) to prevent theft of the internal equipment, although not shown in the auto housing 11 Switcher (Auto Switcher), Feedback Reducer, Volume / Power Controller (VOL / PWR Controller), Play Equipment, Audio & Video Editing Terminal Server, Power Amplifier Amp) is accommodated to form a micro pre system, and a plurality of ceiling sound collectors, ceiling speakers, and cameras form a micro pre system outside the main body housing 11.

Here, the Auto Switcher detects the position according to the induction line of the instructor and operates the reverse direction microphones of the plurality of ceiling sound collectors at the talked position, and the Feedback Reducer provides an equalizer function. To enable clear and clear voice transmission, and the volume / power controller (VOL / PWR Controller) controls the height of the sound and the ON / OFF operation, and the player equipment is used to operate various devices. The audio and video editing terminal server is used to finally edit audio and video functions, and the power amplifier is a device interoperating with a speaker system.

Figure 5 shows a perspective view of a removable directional panel speaker installed in the front of the electronic lecture table according to an embodiment of the present invention.

As shown in FIG. 5, the detachable directional panel speaker 31 is a speaker that outputs sound when the acoustic diaphragm used as the panel is driven by the vibration driver, and has a rectangular plate shape inward of the front of the main housing 11. Two removable directional panel speakers 31 having a size of 200 × 60 mm are installed side by side in the longitudinal direction and fixed by upper and lower angle adjustment plates 31a, and the removable directional panel speakers 31 are easily installed. It is detachable for repair and easy to adjust angle.

FIG. 6A is a vertical view angle of the removable directional panel speaker of FIG. 5, and FIG. 6B is a state diagram showing adjustment of left and right orientation angles of the removable directional panel speaker of FIG. 5.

As shown in (a) and (b) of FIG. 6, the detachable directional panel speaker 31 is provided with an angle adjusting pin 31b at an upper portion and a lower portion thereof, and an upper portion from an inner side of the front side of the main body housing 11. And an angle adjusting plate 31a having an angle adjusting groove 31c at the bottom thereof.

Two removable directional panel speakers 31 are arranged side by side in the longitudinal direction from the inside of the front of the main body 11, and the two removable directional panel speakers 31 are formed at upper and lower angle adjusting pins 31b. It is inserted into the angle adjusting groove 31c formed in the angle adjusting plate 31a, and then moves back and forth, respectively, as the seesaw movement. Since it is possible to adjust the orientation angle of the left and right as the seesaw movement, the orientation angle of the removable directional panel speaker 31 can be adjusted by fixing in various directions of up, down, left and right.

Figure 7 shows a longitudinal cross-sectional view of a small built-in sound collector with a reverse direction microphone is accommodated in the electronic table in accordance with an embodiment of the present invention.

The built-in small sound collector 30 is installed in the main body housing 11 directly under the protection grill net 19 of the upper plate 12, and as shown in FIG. The reverse direction microphone 10 of the present invention is shown coupled to the central portion of the reflector 9.

The reverse direction microphone 10 includes a microphone case having a sound inlet through which sound is introduced on an outer circumferential surface thereof, a circuit board embedded in the microphone case, and having an opening for receiving sound, a microphone chip installed in the opening, and the microphone case. It comprises a jack connector formed at the rear of the reverse direction microphone 10 is coupled to the central portion of the reflector of the small built-in sound collector.

The reverse direction microphone 10 further includes a case fixing tube 20 and an anti-separation annular cap, which can be easily coupled to the reflector 9, and the jack connector of the microphone case 1 has a microphone jack connector 22. Is connected. Reference numeral 23 is a cable.

Here, the reverse directional microphone 10 is to have a sound directed toward the microphone in various directions, the sound is introduced into the side of the microphone, the incoming sound is a microphone chip installed in a circuit board built into the microphone By performing the masturbation through the sound, the sound effect can be maximized and the howling phenomenon can be completely eliminated.

On the other hand, the reverse direction microphone 10 of the present invention can use the reverse direction microphone described in the patent application No. 2008-31919 and the patent application No. 2008-58548 previously filed by the applicant.

Looking at the configuration of the reverse-directional microphone according to the patent application No. 2008-31919, a microphone case formed with a sound inlet through which sound is introduced to the outer peripheral surface; A circuit board embedded in the microphone case and having an opening for receiving sound; And it is configured to include a microphone chip installed in the opening. More specifically, the support plate is formed in the center so that the microphone chip is inserted, a plurality of resonance phenomenon removing holes are formed around the insertion hole coupled to the opening; A directional plate larger than the insertion hole is formed in the center portion, and a plurality of resonance phenomenon removing holes are formed around the through hole to be coupled to the opening while being in close contact with the support plate; And a sound absorbing plate which is formed on a surface of the sound absorbing plate and coupled to the opening portion while being separated by a predetermined distance from the directing plate. The reflecting plate may have a disc shape having a plurality of perforations to reduce the resonance frequency. Sound absorbing material coupled to the outer surface of the reflecting plate; And attaching a reverse-directional microphone to the reflecting plate.

In addition, looking at the configuration of the reverse-directional microphone according to the patent application No. 2008-58548, a microphone case formed with a sound inlet through which sound is introduced into the outer circumferential surface; A circuit board embedded in the microphone case and having an opening for receiving sound; A microphone chip installed in the opening; And a microphone jack coupled to and coupled with a jack connector formed at the rear of the microphone case, comprising: a case fixing tube screwed to the rear of the microphone case while accommodating the microphone jack; And an anti-separation annular cap which protrudes one end portion of the microphone jack through a central portion, and a coupling protrusion formed on an outer circumferential surface of the microphone jack is screwed to the rear of the case fixing tube while being in close contact with an inner circumferential surface thereof. One end of the microphone jack protruding from the center of the anti-separation annular cap is only screwed to the end of the microphone jack itself is configured to further comprise a free connection.

The use of the electronic teaching table of the present invention thus made is as follows.

The instructor can control various equipment such as an auto switcher and a feedback reducer by operating the remote controller 18 while using the personal computer using the keyboard and mouse 16 as the LCD monitor 24. In addition, it is possible to implement the functions of the micro pre-system, such as LED lighting, sound, video, ON / OFF, and, if necessary, rotate the Beam Projector 13 and transfer it to the front and rear. In addition to the LCD monitor 24, it is possible to lecture while viewing the contents of the lecture on a large screen, and the sound of the instructor is provided by a plurality of ceiling-type sound collectors and a small built-in sound collector 30 having a reverse direction microphone 10 installed in the electronic table. Can be collected and output through the ceiling speaker and the removable directional panel speaker 31 facing in various directions to produce a clear, clear and clear voice. It is.

In addition, if necessary, the portable USB memory may be usefully connected to a personal computer stored therein through the remote controller 18.

8 is a perspective use state diagram of an electronic lecture table according to another embodiment of the present invention, Figure 9 shows a front use state diagram of an electronic lecture table according to another embodiment of the present invention.

8 and 9, the upper plate 12 of the upper part of the main housing 11 may be configured in the form of a sliding door running on the rail 29 to protect the LCD monitor 24 stored therein. In this case, the inner monitor 12 is formed inside the upper plate 12 while the LCD monitor 24 is exposed, and the inner grill net 19a is formed at the position of the protective grill net 19. In the main housing 11 below the inner grill net 19a, the built-in small sized sound collector 30 in which the reverse direction microphone 10 of FIG. 7 is installed is accommodated, and the upper plate 12 of the sliding door type is an LCD monitor. (24) Locks are provided for protection and to prevent theft. The other configuration is the same as the electronic teaching table in the above embodiment, and the same reference numerals are given to the same configuration.

As described above, the electronic teaching table according to the present invention has been described with reference to the drawings, but the present invention is not limited to the embodiments and drawings disclosed in the present specification, and those skilled in the art within the scope of the technical idea of the present invention. Of course, various modifications can be made.

1 is a perspective view of an electronic lecture table according to an embodiment of the present invention.

2 is a front view of an electronic lecture table according to an embodiment of the present invention.

3 is a side view of an electronic lecture table according to an embodiment of the present invention;

4 is another side view of an electronic lecture table according to an embodiment of the present invention.

5 is a perspective view of a removable directional panel speaker installed in the front of the electronic lecture table according to an embodiment of the present invention;

FIG. 6A is a vertical view angle of the removable directional panel speaker of FIG. 5, and FIG. 6B is a state diagram showing adjustment of left and right orientation angles of the removable directional panel speaker of FIG.

Figure 7 is a longitudinal cross-sectional view of the small built-in sound collector equipped with a reverse-directional microphone that is accommodated in the electronic table in accordance with an embodiment of the present invention

8 is a perspective use state of the electronic teaching table in accordance with another embodiment of the present invention

9 is a front use state diagram of the electronic lecture table according to another embodiment of the present invention

<Explanation of symbols for the main parts of the drawings>

1: microphone case 3: sealing cap

9 reflector 10 reverse direction microphone

11 body housing 12 top plate

12a: inner top plate 13: beam projector

14: connector for PC 15: vent

16: mouse 17: mouse pad portion

18: remote controller 19: protection grill network

19a: internal grill network 20: case fixing tube

22: microphone jack connector 23: cable

24: LCD monitor 25: Non-slip jaw

26: drawer 28: opening and closing door

28a: locking device 29: rail

30: classroom built-in small sound collector 31: removable directional panel speaker

31a: angle adjusting plate 31b: angle adjusting pin

31c: angle adjustment groove 32: perforation

33: shield

Claims (8)

An electronic table comprising a main plate and an upper plate forming an upper portion of the main body housing, and a power amplifier and a speaker housed in the main housing, The speaker outputs a sound when driving the acoustic diaphragm used as a panel with a vibration driver, and can adjust the directivity angle while moving back and forth and left and right, and after the adjustment of the directivity angle, the speaker can adjust a desired direction. Detachable directional panel speakers that emit sound towards The removable directional panel speaker is formed in a rectangular plate shape is provided with an angle adjusting pin on the upper and lower, the angle adjusting plate having an angle adjusting groove on the upper and lower sides of the front of the main body housing, On the inner side of the front of the main body housing, the two removable directional panel speakers are arranged side by side in the longitudinal direction, wherein the removable directional panel speakers are inserted into an angle adjusting groove formed in the angle adjusting plate to adjust the angle up, down, left, and right. Installed as much as possible, A protective grille network formed on the upper plate of the electronic teaching table and a reflector arranged in the center of the reflecting plate disposed inside the main body housing under the protective grille further comprises a built-in small table-mounted sound collector, wherein the reverse-directional microphone on the outer peripheral surface A microphone case having a sound inlet through which sound is introduced; A circuit board embedded in the microphone case and having an opening for receiving sound; A microphone chip installed in the opening; And a jack connector formed at the rear of the microphone case. The electronic teaching table comprising the reverse direction microphone at the center of the reflection plate of the small built-in sound collector. delete delete delete The method of claim 1, A drawer plate which is recessed in a sliding type between the main body housing and the upper plate; A keyboard disposed on the drawer plate; A personal computer (PC) housed in the body housing; An LCD monitor which is accommodated in the main body housing and exposed in correspondence with the upper plate surface; A mouse pad portion recessed on one surface of the upper plate and a mouse disposed on the mouse pad portion; And PC connector formed on one side of the main body housing; Electronic teaching table further comprising a. The method of claim 5, wherein The other side of the top plate is formed with a sliding door, the LCD monitor is accommodated in accordance with the top plate surface of the inner top plate formed under the sliding door, the inside of the protective grille on the inner top surface on the LCD monitor An electronic lecture table characterized in that a grill net is formed. The method of claim 1, An auto switcher accommodated in the main body housing; Feedback reducer; Volume / power controller (VOL / PWR Controller); Play equipment; Audio & Video Editing Terminal Server; A beam projector formed on the other side of the main body housing; And A plurality of ceiling collectors; Ceiling speakers; camera; Electron lecture table further comprising a micro pre-system consisting of. The method of claim 7, wherein Is installed on one side of the top plate, the power amplifier or a plurality of ceiling collectors, ceiling speakers, cameras, and the Auto Switcher, Feedback Reducer, Play Equipment, Volume / Power Controller (VOL / PWR Controller), an audio and video editing terminal server (Audio & Video Editing Terminal Server), a beam projector (Beam Projector) comprising a remote controller for controlling the operation of the micro presystem Teacher.

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