JP3096047U - A device that allows multiple people to listen to music at the same time using headphones, etc. - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a simple co-listening device that allows a plurality of people to listen to the same music simultaneously using a plurality of headphones. SOLUTION: Holes a and b1 to b5 for jack terminals for inserting a cord plug connected to a headphone output terminal and an output terminal of a tone reproduction device such as an MD player are provided on a plate made of aluminum or the like. A harness connected according to a circuit diagram is installed inside a separately prepared hollow plastic box d, and connected to the jack terminal described above. By connecting a cord plug connected to the output terminal of the above-mentioned musical sound reproducing device to a plurality of headphone output terminals to a plurality of headphone output terminals to the jack terminals a and b1 to b5, signals of music and the like output from the player are transmitted to the respective terminals. Distributed to headphones, multiple to many people can enjoy the same music at the same time.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention is a simple co-listening system that allows multiple people to listen to music at the same time. For the device.

[0002]

[Prior art]

  In recent years, music performances by multiple people from multiple people, such as band activities consisting of 4-5 people or more And practice to practice that is often done. In such a situation, the performance is M Record on D or cassette tape, listen to the contents after the fact and enjoy Frequently used as a reference for. Also, to use as a reference for your own performance Also, listening to the CDs of existing musicians is often performed.

[0003]   In such cases, requests from multiple people to listen to music at the same time Occurrence occurs, but generally available MD player, CD player, or A terminal for connecting headphones to a music playback device such as a set tape player There is only one.

[0004]   Therefore, after enjoying music performance by multiple people, everyone immediately joins When you want to listen to the recorded content, use the speaker device to expand the musical sound around you. Or headphone amplifier such as "headphone manufactured by Fostex Co., Ltd." Distributor PH-50 "and" Audio Technica Co., Ltd. It is necessary to drive a plurality of headphones with the "dphone amplifier AT-HA60". However, these devices are large, require a power source, and are expensive.

[0005]   Furthermore, listening to music by a large number of people from multiple people like this can be done at a coffee shop or after a performance activity. It is often performed in public places such as restaurants, and in such places the sound expansion is In most cases it is practically impossible to secure voice and power. For this reason Even if the number of people wants to listen to a song at the same time, there is a single In most cases, there is no choice but to listen one by one with a dphone. There was a lot of waste, and there was frustration that members could not share information at the same time. .

[0006]

[Problems to be solved by the device]

  Standard equipment of this type is 1 or 2 as standard, and at most 3 people can use a branch line. It is the mainstream that is a branch of chords that can only be heard It was.

[0007]   Therefore, after enjoying music performance with multiple people, everyone immediately Similarly, even when you want to listen to the recorded content, it is customary to use a band consisting of 4-5 people or more. There are many restrictions on the number of people and places in music activities by There was no device that could do it. Therefore, each person can turn around and listen to it. There was a lot of waste both in terms of energy and energy. In consideration of these points, this project is a proposed one that can be heard by a large number of people at once. It is an object of the present invention to provide a device that is highly convenient.

[0008]

[Means for Solving the Problems]

  This invention is a musical tone reproducing device for plugs such as headphones and MD players. Connect the cord plug pre-wired to the output terminal of the device to the jack terminal of this device. Plug in (Claims 1, 2, 4, 6) or headphone Cable to the jack terminal of this device and pre-wired to this device. Connect the plug to the output terminal of the music player such as MD player or CD player. By embedding (claims 1, 3, 5, 6), multiple people can listen to the music at the same time. And a simple device.

[0009]

[Embodiment mode]

  In a portable size case, connect the output terminal for the headphone of the music playback device A jack terminal for taking in signals or a headphone output of a musical sound playback device. Signal line from a cord with a plug that can be directly connected to the power terminal, and the head Provided with multiple jack terminals for connecting the horn, and they are parallel to each other Wiring connections are made in advance inside the case so as to be connected.

[0010]

[Example 1]   An example of the implementation is shown in FIG. In case d made of appropriate material such as plastic, A jack for taking in the signal from the output terminal for the headphone of the musical sound reproducing device. Terminal a and five jack terminals b1 to b5 for connecting headphones are provided As shown in the circuit diagram in Fig. 1, the space between them is connected by an electric wire or a printed wiring board. Connection.

[0011]   The resistors r1 to r5 shown in FIG. 1 have mutual interference between a plurality of headphones connected in parallel. And the playback volume between the headphones due to the difference in the characteristics of the individual headphones. For the purpose of reducing the gap, insert it in series with the wiring to each headphone jack terminal. Specifically, it is a resistor having a resistance value of 0.47Ω or more and 33Ω or less. .

[0012]   However, it is actually possible to omit the resistor r, and in that case, A circuit example is shown in FIG. If the circuit in Figure 2 is used, is it the output terminal for headphones? For connecting the jack terminal a for taking in these signals and the headphone Since the jack terminal b is substantially equivalent, in actual use, the terminal a and the terminal b There is no need to distinguish between, and more flexible usage is possible.

[0013]   Also, in this example, the number of jack terminals for connecting the headphones is five, The number of terminals can be any number between 3 and 12 inclusive.

[0014]

Example 2   An example of the implementation is shown in FIG. In case d made of appropriate material such as plastic, A plug that can be directly connected to the output terminal for the headphone of the music playback device 5 jack terminals b for connecting the headphones to the signal line from the cord c 1 to b5 are provided, and between them, as shown in the circuit diagram of FIG. Connect with a wiring board.

[0015]   The resistors r1 to r5 in FIG. 3 are mutual interferences between a plurality of headphones connected in parallel. And the playback volume between the headphones due to the difference in the characteristics of the individual headphones. For the purpose of reducing the gap, insert it in series with the wiring to each headphone jack terminal. Specifically, it is a resistor having a resistance value of 0.47Ω or more and 33Ω or less. . However, it is actually possible to omit the resistor r, and in that case, An example of the route is shown in FIG.

[0016]   In each of the above embodiments, the outer shape of the case d is a cube, and one surface of the case d Although the terminal is provided, the terminal is not limited to this, and the terminal can be provided on any surface of the cube. Wear. Furthermore, the outer shape of the case is not limited to a cube, and other cases such as a cylindrical shape as shown in FIGS. Although not shown, it may have any shape such as a sphere, a polyhedron, and a thin rectangular parallelepiped. . Also, the number of jack terminals for connecting headphones was set to 5, but the number of terminals Can be any number between 3 and 12 inclusive.

[0017]

[Effect of device]

  It is possible to connect up to about 10 headphones with this device. It enables the simultaneous listening of musical sounds by several people, and depending on the case, By connecting the devices to each other, it is possible to support more people.

[0018]   This device is structurally simple, small, and lightweight, and can be manufactured at low cost. It is functional, compact, easy to use, and easy to use.

[0019]   Also, by inserting the output terminal of the headphone directly into the jack terminal of the device, Because the issue can be distributed, the problem that the code is entangled like the conventional branch type is Few.

[0020]   Furthermore, this device itself does not require power supply such as a battery, so it can be used anywhere. In addition, since it consumes no energy, it has the advantage that it has no impact on the environment. There are points.

[0021]   The present invention is the above MD play which usually has only one or two jack terminals. Not only audio equipment such as music player, but It is possible for multiple people to enjoy listening to image equipment as well. Since it is a convenient device, its application range is wide.

[0022]   In addition to such hobby usage, customers in music-related businesses When introducing music to multiple customers from multiple people at the same time In addition to receiving money, efficiency is also high so that it does not interfere with other customers in the same room. It can introduce other songs well, and it is useful in terms of time, space, and cost.

[0023]   Therefore, this specification refers to preferred or optimal embodiments of the device. Although it has been described to exemplify the basic principle of the invention, it does not depart from the spirit and scope of the invention. Obviously, many modifications, designs and modifications can be made without leaving.

[0024]   In this invention, the musical tone reproducing device is an MD player, a CD player, or a cassette. In addition to tape recorders, radio cassette recorders, televisions, record General electronic equipment such as electronic pianos, electronic organs, etc. Including any device within the scope of the intended purpose of the present invention. Needless to say.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an example of a basic form of a circuit for realizing the present invention.

FIG. 2 is a circuit diagram showing an example of a variation of a circuit that realizes the present invention.

FIG. 3 is a circuit diagram showing an example of a variation of a circuit that realizes the present invention.

FIG. 4 is a circuit diagram showing an example of a variation of a circuit that realizes the present invention.

FIG. 5 is an overhead view showing an embodiment of the appearance of the device of the present invention.

FIG. 6 is a bird's-eye view showing an example of the appearance of the apparatus of the present invention.

FIG. 7 is a top view showing an example implementation of the appearance of the device of the present invention.

FIG. 8 is a bird's eye view showing an example implementation of the appearance of the device of the present invention.

[Explanation of symbols]

a Jack terminal for stereo signal connection b Stereo signal jack terminal c Stereo signal connection plug d case r1 to r10 resistors

Claims (5)

[Scope of utility model registration request] 1. A device for co-listening that allows a plurality of people from a plurality of people to simultaneously listen to a musical sound by providing a plurality of jack terminals for distributing a headphone output signal of the musical sound reproducing device to a plurality of headphones. 2. A case is provided with a jack terminal for inserting a plug of a cord tied to an output terminal for a headphone of a musical sound reproducing device and a plurality of jack terminals for connecting a headphone, and a musical sound is provided inside the case. From the jack terminal for inserting the plug of the cord tied to the output terminal for the headphone of the playback device, to the jack terminals for connecting the headphone, multiple branch in parallel so that the musical sound signal can be transmitted. By wiring, the output signal for the headphone of the musical sound reproducing device is distributed to a plurality of jack terminals for connecting the headphone, so that a large number of people from a plurality of people can listen to the musical sound at the same time. A simple device for co-listening. 3. A cord with a plug that can be directly connected to an output terminal for a headphone of a musical sound reproducing device and a plurality of jack terminals for connecting a headphone to the case, and a cord with a plug inside the case. Therefore, for a plurality of jack terminals for connecting the headphones, by performing wiring that branches in parallel so that the musical sound signals can be transmitted, a plurality of signals for the headphone output of the musical sound reproducing device can be output. A device for simple co-listening that allows a plurality of people to listen to musical sounds at the same time, characterized by being distributed to jack terminals for connecting headphones. 4. The device for co-listening according to claim 1, wherein the number of jack terminals for connecting the headphones is 3 or more and 12 or less. 5. The device for co-listening according to claim 2, wherein the case is formed in a portable size.