KR200314345Y1 - 5.1 channel headphone system - Google Patents

Abstract

The present invention relates to a 5.1-channel headphone system, wherein the front right signal (FR), rear right signal (RR), front left signal (FL), rear left signal (RL), center signal (C), and woofer signal (W) An audio device for outputting a 5.1 channel signal including a; A system comprising a headphone 30 for reproducing a 5.1-channel signal output from the sound device, wherein the headphone 30 includes a FR player for reproducing the FR signal, an RR player for reproducing the RR signal, and a C signal for reproducing. A first C player C1, a right part including a first vibrator Vib1 for converting a W signal into vibration, an FL player for reproducing the FL signal, an RL player for reproducing the RL signal, and reproducing the C signal. The second C player (C2) and the left portion including a second vibrator (Vib2) for converting the W signal to vibration, wherein the first C player and the second C player to receive the W signal to reproduce the sound It is characterized in that connected to the W signal output terminal of the device.

Description

5.1 channel headphone system

The present invention relates to a 5.1-channel headphone system, and more particularly, the present invention relates to a technology for reproducing a 5.1-channel sound signal to headphones instead of speakers.

A 5.1-channel stereophonic speaker is a combination of five directional speakers and a woofer. Such audio speaker systems have evolved rapidly from the first two channels to multichannels (such as 5.1 channels). As mentioned above, the conventional two-channel speaker system refers to a structure in which one speaker each of left and right, which is a basic configuration of a conventional stereo.

In particular, the 5.1 channel of the multi-channel speaker system is composed of five speakers and one woofer, one of the commercialization of such a 5.1-channel speaker system is shown in FIG.

As shown in Fig. 1, a 5.1-channel speaker system is a center (also called main) for stereoscopic reproduction of an audio signal output from an acoustic device (home theater, DVD player, PC, game machine, etc.) 10 ( C), front left (FL), front right (FR), rear left (RL), rear right (RR) speaker and woofer (W).

The woofer (also called sub-woofer) is a bass-only regenerator, which is considered 0.1 channel because it has no directivity. Therefore, the speaker system shown in FIG. 1 is called a 5.1 channel system.

In order to listen to music or watch a movie using the 5.1-channel speaker system, each channel, that is, 5 channels must be connected to an audio device separately recorded or a 5.1-channel dedicated decoder is used. Currently, 5.1 channels are supported on DVDs, PC 5.1 sound cards, and PlayStation II game consoles.

On the other hand, the development of the conventional two-channel headphone has been developed to apply the above-described multi-channel speaker system to the headphone now.

In the case of a multi-channel headphone system, the sound resolution of each speaker may be somewhat deteriorated due to the constraint that the speakers must be located near the ears.However, by using a vibrator instead of a woofer, the human body is directly touched by vibration to give a sense of There is also an advantage that can double the realism when watching a movie.

An example of such a multichannel headphone system is shown in Figures 2a and b.

FIG. 2A illustrates only the left portion 20a of the multi-channel headphone system that is currently commercialized, and includes a front left FL, a rear left RL, a center C, and a vibrator Vib. The center C and the vibrator Vib act as channels with the right and left sides of the headphones.

FIG. 2B is a wiring diagram showing a decoder 21 and an amplifier 22 for driving the headphones 20 of FIG. Means Jack.

In the headphone system of FIGS. 2A and 2B, unlike a general speaker system, a separate woofer is not installed. Instead, a woofer signal W is applied to the vibrators Vib1 and Vib2 installed on the left and right sides of the headphones to convert the bass sound into vibration. Stimulates the human body

However, in the conventional multichannel headphone system shown in Fig. 2B, since the low woofer signal W is not reproduced as sound but is reproduced only by vibration, there is a problem in that the user is insufficient to enjoy rich low sound. You can not adjust the intensity of the bass depending on the taste of the user.

In addition, since the vibrators Vib1 and Vib2 in FIG. 2B are driven only by the woofer signal W output from the audio device, there is a point that it is difficult to faithfully reproduce the three-dimensional or intensity of the vibration. As well as left and right signals (FR, RR, FL, RL).

The present invention is a multi-channel (5.1-channel) headphone system developed to solve the above problems, the object of the present invention is to apply the woofer signal to the center as well as the vibrator, the front and rear right signal and the front left and right signals as well as each speaker In order to provide a 5.1-channel headphone system that is also applied to solve the disadvantages of the conventional multi-channel headphone system.

1 is an exemplary product diagram of a conventional 5.1-channel speaker system.

Figures 2a-b is an illustration of a conventional multichannel headphone system.

3 is a configuration diagram of a first embodiment of a 5.1-channel headphone system according to the present invention;

4 is a configuration of a second embodiment of a 5.1-channel headphone system according to the present invention.

<Description of Drawing>

Sound device 10, headphones 20, 30, left portion 20a of headphones, decoders 21, 31, amplifiers 22, 32, 32 ', connection jacks 23, 33, volume control unit ( 35), filters (36, 37)

Configuration

The overall configuration of the 5.1-channel headphone system according to the present invention is as follows.

The present invention includes a front right signal FR, a rear right signal RR, a front left signal FL, a rear left signal RL, a center signal C, and a woofer signal W output from an acoustic device. A system comprising headphones for reproducing a 5.1-channel signal

The headphone includes a FR player for reproducing the FR signal, an RR player for reproducing the RR signal, a first C player (C1) for reproducing the C signal, and a first vibrator (Vib1) for converting the W signal into vibrations. Wealth; A left part including a FL player for reproducing the FL signal, a RL player for reproducing an RL signal, a second C player (C2) for reproducing a C signal, and a second vibrator (Vib2) for converting a W signal into vibration,

The first C player and the second C player are connected to the W signal output terminal of the sound device in order to receive and reproduce the W signal.

Hereinafter, with reference to the drawings will be described a preferred embodiment according to the present invention.

Example 1

3 is an internal wiring diagram of a first embodiment of a 5.1-channel headphone system according to the present invention.

As shown in Fig. 3, the headphone 30 of the present invention has a front right signal FR, a rear right signal RR, and a front through an amplifier 32 that amplifies a 5.1 channel signal output from the decoder 31. The channel signals of the left signal FL, the rear left signal RL, the center signal C and the woofer signal W are output. Reference numeral 33 denotes a jack for connecting the amplifier 32 and the headphone 30.

Here, the decoder (decoder) of the headphone is a device for converting the audio signal recorded in 5.1 channel digitally compressed (encoded) to the analog form that can be heard by humans, such a decoder is a DVD player, AV Built-in installation in any one of the amplifier, speaker set, for example, as follows.

The two-channel sound input as a digital signal is separated into virtual 5.1-channel analog sound using a Dolby Prologic-2 chip, etc., and the sound source device that outputs two analog channels such as a TV is converted to a digital signal through encoding. After that, Dolby Prologic-2 chip is used to convert it into virtual 5.1 channel analog sound signal. In addition, the 5.1-channel digital sound signal is separated into an 5.1-channel analog sound using a Dolby Digital or DTS chip. In this way, the sound signal changed into the analog 5.1 channel is appropriately amplified by the amplifier circuit of the amplifier 32 shown in FIG. 3 to operate the 5.1 channel headphone 30.

In this way, the analog signal through the decoder 31 is amplified by the sound signal through the amplifier 32, the separation of the sound to 5.1 channels (FR, RR, FL, RL, C, W) and sound intensity This is regulated. Although not shown in the drawing, the headphone amplifier box of the present invention, that is, the amplifier 32 has a digital output terminal for connecting and using a device that supports digital input such as an AV amplifier, 5.1 channel speakers, etc. Has 5.1 channel analog output terminal)

Returning to the wiring diagram of the headphone system shown in FIG. 3 again, the headphone 30 of the present invention has a FR player for reproducing an FR signal, an RR player for reproducing an RR signal, and a first C player (C1) for reproducing a C signal. , The right part including the first vibrator Vib1 for converting the W signal into vibration, the FL player for reproducing the FL signal, the RL player for reproducing the RL signal, the second C player C2 for reproducing the C signal, and the W signal It consists of a left portion that includes a second vibrator (Vib2) for converting the vibration to vibration.

In the present invention, the analog 5.1 channel signal amplified by the amplifier 32 sends a signal to the headphone 30 as follows. That is, the FR sound signal is the front right unit (FR) of the headphones, the FL sound signal is the front left unit (FL) of the headphones, the RR sound signal is the rear right unit (RL) of the headphones, and the RL sound signal is the To the left rear unit RL, the center sound signal is sent to both center units C1 and C2 of the headphones, and the Subwoofer (W) sound signal is sent to both vibration units Vib1 and Vib2 of the headphones.

In addition, the headphone 30 includes a volume control knob VR1 for adjusting the volume of the front / rear / center (FR, RR, C1, FL, RL, C2) and a knob VR2 for adjusting the vibration. It may include a volume control unit 35.

According to the present embodiment shown in FIG. 3, the first C player C1 and the second C player C2 are connected to the W signal output terminal of the amplifier 32 to receive and reproduce the W signal. Therefore, a problem that may occur when the subwoofer (W) sound signal is sent only to the vibration units Vib1 and Vib2 of the headphone 30, that is, the bass of the subwoofer (W) is felt only by vibration, so that the listener can enrich the bass sound. In order to solve the problem that cannot be heard, the present invention sends the W signal to the first C player (C1) and the second C player (C2) to compensate for the insufficient bass in the first C player (C1) and the second C player (C2) At the same time, it is possible to control the intensity of the bass.

In the configuration of the above embodiment, a frequency filter circuit, that is, a low pass filter 37, is connected between the first C regenerator C1 and the second C regenerator C2 and the W signal output terminal of the amplifier 32 so that an appropriate low frequency ( Only the low-frequency signal of 20 ~ 200Hz) can be sent to the first C player (C1) and the second C player (C2) to prevent the degradation of the left and right sound separation of the headphone 30.

On the other hand, in order to increase the sound realism, the first vibrator Vib1 of the present embodiment is connected to the FR signal output terminal of the amplifier 32 to receive and reproduce the FR signal, and the second vibrator Vib2 is It is connected to the FL signal output terminal of the amplifier 32 to receive and reproduce the FL signal. In addition, the first vibrator Vib1 is connected to the RR signal output terminal of the amplifier 32 to receive and reproduce the RR signal, and the second vibrator Vib2 is applied to play the RL signal. It is connected to the RL signal output terminal of the amplifier 32. In this way, the bass of the FR / RR signal is sent to the right first vibrator Vib1, and the bass of the FL / RL signal is sent to the left second vibrator Vib2. RL, C, W) The first and second vibrators Vib1 and Vib2 vibrate at different intensities according to the bass intensity of the tones, which makes them feel more realistic. Makes you feel more.

Also in the configuration of the above embodiment, as described above, the low pass filter 36 is connected between the first vibrator Vib1 and the FR signal and the RR signal output terminal of the amplifier 32 to provide an appropriate low frequency frequency (20 to 120 Hz). Only the low frequency signal of the first vibrator Vib1 can be sent, and the low frequency filter 36 is also connected between the second vibrator Vib2 and the output signal of the FL signal and the RL signal of the amplifier 32 to the appropriate low frequency ( Only the bass signal of 20 ~ 120Hz) can be sent to the second vibrator (Vib2).

Example 2

Figure 4 is a schematic diagram of the internal wiring of a second embodiment of a 5.1-channel headphone system according to the present invention.

As shown in Fig. 4, the second embodiment according to the present invention has the same structure as the internal wiring diagram of the first embodiment described above. However, the first C regenerator C1 and the second C regenerator C2 in the above-described first embodiment have a structure connected to the W signal output terminal of the amplifier 32 to receive and reproduce the W signal. In the example, as shown in FIG. 4, the W signal applied to the first C player C1 and the second C player C2 is converted into a W signal from the output terminal of the decoder 31, that is, the input terminal of the amplifier 32. Authorized. Thus, it is possible to compensate for the low bass in the first C player (C1) and the second C player (C2) and to adjust the intensity of the bass. Also, in the present embodiment, in order to reproduce only the low tone signal of the appropriate low frequency frequency (20 to 200 Hz) of the W signal and apply it to the C signal, as in the first embodiment, the low pass filter 37 ) Is connected. As a result, as described in the first embodiment, it is possible to prevent the lowering of the left and right sound separation degree of the headphones 30.

In addition, the configuration of the present embodiment and the functional description of each configuration are the same as those of the first embodiment described above.

In addition, as shown in FIG. 4, the present embodiment amplifies the W signal, the FR signal, the FL signal, the RR signal, and the RL signal transmitted to the first and second oscillators Vib1 and Vib2 through the amplifier 32. An amplifier 32 'can be added. As a result, it is possible to compensate for the decrease in the volume due to branching of one W signal output from the amplifier 32 to two vibrators, that is, the first and second vibrators Vib1 and Vib2. (The addable amplifier 32 'is not shown in the drawings of the first embodiment described above, but is also a technical concept applicable to the first embodiment.)

As described above, the 5.1-channel headphone system according to the present invention is not limited to the above embodiment, and may be implemented by adding many modifications without departing from the technical spirit of the present invention.

According to the 5.1-channel headphone system of the present invention, the woofer signal is applied not only to the vibrator but also to the center, and the front and rear right signals and the front and rear left signals to not only the speakers but also the vibrators, so that users can enjoy rich bass sound. There is an effect to feel the presence and directionality of the sound.

Claims (17)

Audio device for outputting 5.1 channel signals including front right signal FR, rear right signal RR, front left signal FL, rear left signal RL, center signal C and woofer signal W Wow, In the system consisting of a headphone 30 for reproducing the 5.1-channel signal output from the sound device, The headphone 30 includes a FR regenerator for reproducing the FR signal, an RR regenerator for reproducing the RR signal, a first C regenerator C1 for reproducing the C signal, and a first vibrator Vib1 for converting the W signal into vibration. A right part included; A left part including a FL player for reproducing the FL signal, a RL player for reproducing an RL signal, a second C player (C2) for reproducing a C signal, and a second vibrator (Vib2) for converting a W signal into vibration, And the first C player and the second C player are connected to a W signal output terminal of the sound device to receive and reproduce the W signal. delete The method according to claim 1, The first vibrator Vib1 of the headphone 30 is connected to the FR signal output terminal of the sound device in order to receive and reproduce the FR signal, The second vibrator (Vib2) of the headphone (30) is connected to the FL signal output terminal of the sound device for receiving and playing the FL signal, 5.1-channel headphone system. The method according to claim 1, The first vibrator Vib1 of the headphone 30 is connected to the RR signal output terminal of the sound device in order to receive and reproduce the RR signal. The second vibrator (Vib2) of the headphone (30) is connected to the RL signal output terminal of the sound device for receiving and playing the RL signal, 5.1-channel headphone system. The method according to claim 1, A low-pass filter (37) is connected between the first and second C player and the W signal output terminal of the sound device, 5.1 channel headphone system. delete The method according to claim 3, A low pass filter 36 is connected between the first vibrator Vib1 and the FR signal output terminal of the sound device, Another low-pass filter (36) is connected between the second vibrator (Vib2) and the FL signal output terminal of the sound device, 5.1 channel headphone system. The method according to claim 4, A low pass filter 36 is connected between the first vibrator Vib1 and the RR signal output terminal of the sound device. Another low-pass filter (36) is connected between the second vibrator (Vib2) and the RL signal output terminal of the sound device, 5.1 channel headphone system. The method according to claim 1, wherein the headphones 30 A knob VR1 for adjusting the volume of the front right signal FR, rear right signal RR, front left signal FL, rear left signal RL, and center signal C; 5.1-channel headphone system, characterized in that a volume control unit (35) comprising a knob (VR2) for adjusting the vibration of the woofer signal (W). delete Audio device for outputting 5.1 channel signals including front right signal FR, rear right signal RR, front left signal FL, rear left signal RL, center signal C and woofer signal W Wow, In the system consisting of a headphone 30 for reproducing the 5.1-channel signal output from the sound device, The headphone 30 includes a FR regenerator for reproducing the FR signal, an RR regenerator for reproducing the RR signal, a first C regenerator C1 for reproducing the C signal, and a first vibrator Vib1 for converting the W signal into vibration. A right part included; A left part including a FL player for reproducing the FL signal, a RL player for reproducing an RL signal, a second C player (C2) for reproducing a C signal, and a second vibrator (Vib2) for converting a W signal into vibration, The first vibrator Vib1 of the headphone 30 is connected to the FR signal output terminal of the sound device in order to receive and reproduce the FR signal, The second vibrator (Vib2) of the headphone (30) is connected to the FL signal output terminal of the sound device for receiving and playing the FL signal, 5.1-channel headphone system. Audio device for outputting 5.1 channel signals including front right signal FR, rear right signal RR, front left signal FL, rear left signal RL, center signal C and woofer signal W Wow, In the system consisting of a headphone 30 for reproducing the 5.1-channel signal output from the sound device, The headphone 30 includes a FR regenerator for reproducing the FR signal, an RR regenerator for reproducing the RR signal, a first C regenerator C1 for reproducing the C signal, and a first vibrator Vib1 for converting the W signal into vibration. A right part included; A left part including a FL player for reproducing the FL signal, a RL player for reproducing an RL signal, a second C player (C2) for reproducing a C signal, and a second vibrator (Vib2) for converting a W signal into vibration, The first vibrator Vib1 of the headphone 30 is connected to the RR signal output terminal of the sound device in order to receive and reproduce the RR signal. The second vibrator (Vib2) of the headphone (30) is connected to the RL signal output terminal of the sound device for receiving and playing the RL signal, 5.1-channel headphone system. The method according to claim 11 or 12, And the first C player and the second C player are connected to a W signal output terminal of the sound device to receive and reproduce the W signal. The method according to claim 13, A low-pass filter (37) is connected between the first and second C player and the W signal output terminal of the sound device, 5.1 channel headphone system. The method according to claim 11, A low pass filter 36 is connected between the first vibrator Vib1 and the FR signal output terminal of the sound device, Another low-pass filter (36) is connected between the second vibrator (Vib2) and the FL signal output terminal of the sound device, 5.1 channel headphone system. The method according to claim 12, A low pass filter 36 is connected between the first vibrator Vib1 and the RR signal output terminal of the sound device. Another low-pass filter (36) is connected between the second vibrator (Vib2) and the RL signal output terminal of the sound device, 5.1 channel headphone system. The method according to claim 11 or 12, wherein the headphones 30 A knob VR1 for adjusting the volume of the front right signal FR, rear right signal RR, front left signal FL, rear left signal RL, and center signal C; 5.1-channel headphone system, characterized in that a volume control unit (35) comprising a knob (VR2) for adjusting the vibration of the woofer signal (W).