Beat Frequency Earphones

Abstract

To provide a beat frequency earphone that allows a user to feel binaural beats. [Solution] The beat frequency earphone includes a left-ear speaker, a right-ear speaker, a wireless communication device, and a frequency adjuster. The left-ear speaker is used to provide a first sound wave to the user's left ear. The right-ear speaker is used to provide a second sound wave to the user's right ear. The frequency adjuster is signal-connected to the left-ear speaker and the right-ear speaker via wiring and to the wireless communication device. The frequency adjuster receives an external audio signal from the wireless communication device. The frequency adjuster adjusts the external audio signal to a first audio signal and then transmits it to the left-ear speaker to generate the first sound wave. The frequency adjuster adjusts the external audio signal to a second audio signal and then transmits it to the right-ear speaker to generate the second sound wave. The first frequency of the first sound wave and the second frequency of the second sound wave have a frequency difference value.

Description

[Technical Field]

[0001] The present invention relates to earphones, and more particularly to beat frequency earphones. [Background technology]

[0002] With the rapid advancement of science and technology today, long-distance travel has become a part of people's daily lives. To reduce fatigue caused by long-distance travel, people often use earphones to listen to music or enjoy video content without disturbing those around them. However, improving the earphone experience has become an area of ​​continuous improvement for the earphone industry. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention provides a beat frequency earphone that can make users feel binaural beats. [Means for solving the problem]

[0004] The beat frequency earphone of the present invention includes a left-ear speaker, a right-ear speaker, a wireless communication device, and a frequency adjuster. The left-ear speaker is used to provide a first sound wave to the user's left ear. The right-ear speaker is used to provide a second sound wave to the user's right ear. The frequency adjuster is signal-connected to the left-ear speaker and the right-ear speaker via wires and to the wireless communication device. The frequency adjuster receives an external audio signal from the wireless communication device. The frequency adjuster adjusts the external audio signal to a first audio signal and then transmits it to the left-ear speaker to generate the first sound wave. The frequency adjuster adjusts the external audio signal to a second audio signal and then transmits it to the right-ear speaker to generate the second sound wave. The first frequency of the first sound wave and the second frequency of the second sound wave have a frequency difference value.

[0005] In one embodiment of the above-mentioned beat frequency earphone, the beat frequency earphone further includes an audio source connection port and a switch, and the frequency adjuster is signal-connected to the audio source connection port or the wireless communication device via the switch, and receives an external audio signal from the audio source connection port or the wireless communication device.

[0006] In one embodiment of the above-mentioned beat frequency earphone, the beat frequency earphone further includes an audio source cable, both ends of which are respectively inserted into the audio source connection port and the audio source output socket of the analog audio source output device.

[0007] In one embodiment of the above-mentioned beat frequency earphone, the beat frequency earphone further includes a control box, in which the audio source connection port, the wireless communication device, the switch, and the frequency adjuster are installed.

[0008] In one embodiment of the beat frequency earphone described above, the switch is a manual switch.

[0009] In one embodiment of the beat frequency earphones described above, the beat frequency earphones further include a wireless receiver used to receive FM radio broadcasts or Bluetooth broadcasts and signal-connected to the left and right ear speakers via wires.

[0010] In one embodiment of the beat frequency earphone described above, the wireless communicator communicates wirelessly with a mobile phone, and the mobile phone transmits an external audio signal.

[0011] In one embodiment of the beat frequency earphone described above, the radio communicates via Bluetooth.

[0012] In one embodiment of the above-mentioned beat frequency earphone, the frequency adjuster includes an analog-to-digital conversion circuit, a frequency adjustment circuit, and a digital-to-analog conversion circuit, which are signal-connected in sequence.

[0013] In one embodiment of the beat frequency earphone described above, the frequency difference value includes a plurality of switchable first frequency difference values ​​within two or more of the following ranges: between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz.

[0014] In one embodiment of the beat frequency earphone described above, the frequency difference value includes a plurality of switchable first frequency difference values ​​that automatically cycle within two or more of the following ranges: between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz.

[0015] In one embodiment of the beat frequency earphone described above, the left and right ear speakers are dynamic speakers, balanced armature speakers, or bone conduction speakers. [Effects of the Invention]

[0016] As described above, the beat frequency earphone of the present invention allows the sound waves received by both ears to have a frequency difference value, so that the user can experience a corresponding effect other than hearing sound waves. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram of a beat frequency earphone according to one embodiment of the present invention; [Figure 2] FIG. 2 is a circuit block diagram of the beat frequency earphone of FIG. 1. [Figure 3] 1 is a schematic diagram of a beat frequency earphone according to another embodiment of the present invention; [Figure 4] 10 is a schematic diagram of a beat frequency earphone according to yet another embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0018] FIG. 1 is a schematic diagram of a beat frequency earphone according to one embodiment of the present invention. FIG. 2 is a circuit block diagram of the beat frequency earphone of FIG. 1. Referring to FIGS. 1 and 2, the beat frequency earphone 100 of this embodiment includes a left-ear speaker 110, a right-ear speaker 120, a wireless communication unit 140, and a frequency adjuster 160. The left-ear speaker 110 is used to provide a first sound wave to the user's left ear. The right-ear speaker 120 is used to provide a second sound wave to the user's right ear. The left-ear speaker 110 and the right-ear speaker 120 may be bone conduction, behind-the-ear, over-ear, in-ear, or other types.

[0019] The beat frequency earphone 100 is formed as an integrated earphone. That is, the left-ear speaker 110 and the right-ear speaker 120 are fixedly connected and cannot be separated. For example, the beat frequency earphone 100 has a moderately deformable arc-shaped housing 112, and the left-ear speaker 110 and the right-ear speaker 120 are attached to opposite ends of the housing 112, respectively. In addition to housing the left-ear speaker 110 and the right-ear speaker 120, the housing 112 also houses the wireless communication device 140 and the frequency adjuster 160. At the same time, the housing 112 also functions to allow the entire beat frequency earphone 100 to be worn around the user's neck. However, the left-ear speaker 110, the right-ear speaker 120, the wireless communication device 140, and the frequency adjuster 160 may all be connected to each other by wires without the housing 112.

[0020] Frequency adjuster 160 is signal-connected to left ear speaker 110 and right ear speaker 120 via wiring. That is, frequency adjuster 160 and left ear speaker 110 are signal-connected via a wired method, and frequency adjuster 160 and right ear speaker 120 are also signal-connected via a wired method. The wiring used for the connection can also be housed within housing 112. Because frequency adjuster 160 is signal-connected to left ear speaker 110 and right ear speaker 120 via wiring, it can transmit signals to left ear speaker 110 and right ear speaker 120 synchronously, and there is no need to consider whether left ear speaker 110 and right ear speaker 120 are synchronized when receiving signals during wireless transmission.

[0021] The frequency adjuster 160 receives an external audio signal from the wireless communication device 140. The frequency adjuster 160 adjusts the external audio signal to a first audio signal and then transmits it to the left ear speaker 110 to generate a first sound wave. The frequency adjuster 160 adjusts the external audio signal to a second audio signal and then transmits it to the right ear speaker 120 to generate a second sound wave. A first frequency of the first sound wave and a second frequency of the second sound wave have a frequency difference value.

[0022] Brain waves (EEG) are electrical vibrations generated by neural activity in the human brain. They are also known as the rhythm of brain cell activity. The human brain constantly generates brain waves. Classified by frequency, EEGs include at least beta, alpha, theta, delta, and gamma waves. Generally, EEGs during the third stage of non-REM sleep are typically delta waves (with a frequency between 0.5 and 4 Hz). During deep sleep, such as dreaming, deep meditation, or a state of intense subjectivity, EEGs are typically theta waves (with a frequency between 4 and 8 Hz). EEGs during the drowsy state before falling asleep, gradually becoming less conscious, having a clear idea, or states of relaxation and focused attention are typically alpha waves. EEGs during states such as relaxed but focused mental states and those processing previously received information are typically beta waves. However, research has shown that when the human brain is induced to produce different EEGs, they can adversely affect the human state. For example, when a person's brain is induced to produce alpha waves, the person may be led to a state of inspiration, relaxation, and focused attention.

[0023] By setting the frequency difference value between the first and second sound waves provided by the beat frequency earphone 100, the user's brain can be induced to generate beta waves, alpha waves, theta waves, delta waves, gamma waves, or other brain waves, leading the user to the corresponding states mentioned above.

[0024] For example, the wireless communication device 140 of this embodiment can communicate wirelessly with the mobile phone 50, which transmits music, video audio signals, voice audio signals, or other external audio signals. The wireless communication device 140, for example, performs Bluetooth communication or other wireless communication. The frequency adjuster 160 adjusts the external audio signal received from the mobile phone 50 so that sound waves with a frequency difference are played in the user's left and right ears, thereby stimulating the user's brain to generate specific brain waves, thereby achieving effects such as improved concentration, better sleep, stress reduction, and induction into a meditative state.

[0025] In this embodiment, the frequency difference value includes a plurality of switchable first frequency difference values. That is, the user can control the frequency adjuster 160 to set the frequency difference value to different first frequency difference values ​​according to current needs. These first frequency difference values ​​fall within two or more of five ranges: 0.5 Hz to 4 Hz, 4 Hz to 8 Hz, 8 Hz to 12 Hz, 12 Hz to 20 Hz, and 25 Hz to 40 Hz. For example, there may be two first frequency difference values. One first frequency difference value falls within one of the five ranges: 0.5 Hz to 4 Hz, 4 Hz to 8 Hz, 8 Hz to 12 Hz, 12 Hz to 20 Hz, and 25 Hz to 40 Hz, and the other first frequency difference value falls within another of the five ranges: 0.5 Hz to 4 Hz, 4 Hz to 8 Hz, 8 Hz to 12 Hz, 12 Hz to 20 Hz, and 25 Hz to 40 Hz. Furthermore, for example, there may be three first frequency difference values, one of which is within one of five ranges: between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz, another of which is within another of the five ranges: between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz, and the remaining first frequency difference value is within one of three ranges remaining after subtracting the first two ranges from the five ranges: between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz.

[0026] In this embodiment, the frequency difference value can automatically change cyclically over time. That is, each first frequency difference value can automatically change cyclically within one of the five ranges described above. That is, the frequency difference value is not a fixed, unchanging value. Furthermore, the frequency difference value automatically changes in a predetermined manner without requiring human intervention. Furthermore, the method of changing the frequency difference value is a preset method and cannot be adjusted or selected by the user. Alternatively, there may be multiple change methods, and the user may select the change method to use. Furthermore, the user's physiological state is not detected before determining the change method of the frequency difference value. That is, the change method of the frequency difference value does not change depending on the user's physiological state.

[0027] For example, the frequency difference value can automatically and stepwise change between 8 Hz and 12 Hz, with each change being 0.1 Hz and maintaining the same frequency difference value for 10 seconds after each change. Automatically and stepwise changing of the frequency difference value between 8 Hz and 12 Hz refers to, for example, gradually changing from 8 Hz to 12 Hz and then gradually changing from 12 Hz to 8 Hz. It also refers to, for example, repeatedly changing from 8 Hz to 12 Hz or repeatedly changing from 12 Hz to 8 Hz.

[0028] In this embodiment, the frequency difference value may be automatically cyclically changed between 0.5 Hz and 4 Hz to induce delta waves, between 4 Hz and 8 Hz to induce theta waves, between 8 Hz and 12 Hz to induce alpha waves, between 12 Hz and 20 Hz to induce beta waves, and between 25 Hz and 40 Hz to induce gamma waves. Also, in this embodiment, if the time period is not long enough, the frequency difference value may only gradually increase or decrease.

[0029] A user's brain does not necessarily produce an excellent induction effect for a single frequency difference value, but typically produces an excellent induction effect for multiple frequency difference values. The neckband earphones of this embodiment induce the user with automatically cyclically changing frequency difference values, thereby producing an excellent induction effect for multiple frequency difference values. Even if a subject shows an excellent induction effect for a single input frequency difference value, the effect may not be sustained for long. The neckband earphones of this embodiment induce the user with automatically cyclically changing frequency difference values, and can automatically cyclically change within a selected range, so that after the user's brain becomes fatigued, the neckband earphones can change to another frequency difference value and produce an excellent induction effect again. As a result, the neckband earphones of this embodiment can produce an excellent brainwave induction effect for a longer period of time.

[0030] In this embodiment, the beat frequency earphone 100 may further include a sound source connection port 130 and a switch 150. The frequency adjuster 160 is signal-connected to the sound source connection port 130 or the wireless communication device 140 via the switch 150, and receives the above-mentioned external audio signal from the sound source connection port 130 or the wireless communication device 140. That is, the frequency adjuster 160 is not signal-connected to the sound source connection port 130 and the wireless communication device 140 at the same time. When the frequency adjuster 160 is signal-connected to the sound source connection port 130, it is not signal-connected to the wireless communication device 140, and when the frequency adjuster 160 is signal-connected to the wireless communication device 140, it is not signal-connected to the sound source connection port 130. The switch 150 is used to determine whether the frequency adjuster 160 is signal-connected to the sound source connection port 130 or the wireless communication device 140. The switch 150 may be a manual switch, for example, a mechanical switch, a touch switch, or another type of switch.

[0031] The housing 112 also houses the audio source connection port 130 and the switch 150. However, the left ear speaker 110, the right ear speaker 120, the audio source connection port 130, the wireless communication device 140, the switch 150, and the frequency adjuster 160 may all be interconnected by wires without the housing 112.

[0032] In this embodiment, the beat frequency earphone 100 may further include a sound source cable 170. The sound source connection port 130 in this embodiment is a sound source socket. Both ends of the sound source cable 170 are inserted into the sound source connection port 130 and a sound source output socket of an analog sound source output device, such as the sound source output socket 60 of an aircraft, respectively. That is, while a user is on an aircraft, they cannot connect to a mobile phone wirelessly, such as via Bluetooth, but can receive an external audio signal output from the aircraft's sound source output socket 60 via a wired connection via the sound source cable 170. Furthermore, the frequency adjuster 160 adjusts the external audio signal received from the aircraft's sound source output socket 60 to produce sound waves with a frequency difference that are played in the user's left and right ears, thereby inducing the generation of specific brain waves in the user's brain and achieving effects such as improved concentration, better sleep, stress reduction, and induction into a meditative state. The sound source cable 170 may also be connected to the sound source output ports of analog sound source output devices, such as a television, radio, Walkman, laptop, or cruise ship seat.

[0033] In this embodiment, the frequency adjuster 160 includes, for example, an analog-to-digital conversion circuit 162, a frequency adjustment circuit 164, and a digital-to-analog conversion circuit 166, which are signal-connected in sequence. Typically, the external audio signal received by the frequency adjuster 160 is an analog signal. After the analog-to-digital conversion circuit 162 converts the external audio signal into a digital signal, the frequency adjustment circuit 164 can adjust it into a first audio signal and a second audio signal. Then, the digital-to-analog conversion circuit 166 reconverts the first audio signal and the second audio signal from a digital signal back into an analog signal to drive the left-ear speaker 110 and the right-ear speaker 120.

[0034] The beat frequency earphone 100 of this embodiment may further include a printed circuit board assembly 180 and a battery 190. The printed circuit board assembly 180 and the battery 190 are, for example, installed within the housing 112, and are located on the left and right sides of the housing 112, respectively. The audio source connection port 130, the wireless communication device 140, the switch 150, and the frequency adjuster 160 are, for example, all installed on the printed circuit board assembly 180. The battery 190 is electrically connected to and supplies power to the printed circuit board assembly 180, the left-ear speaker 110, and the right-ear speaker 120. The left-ear speaker 110 and the right-ear speaker 120 may be dynamic speakers, balanced armature speakers, bone conduction speakers, or other types of speakers.

[0035] The beat frequency earphone 100 of this embodiment may further include a wireless receiver 185 used to receive FM radio or Bluetooth broadcasts and signal-connected to the left-ear speaker 110 and the right-ear speaker 120 via wiring. The wireless receiver 185 may also be mounted on the printed circuit board assembly 180. The wireless receiver 185 and the wireless communicator 140 perform their respective functions independently. After receiving an FM radio or Bluetooth broadcast, the wireless receiver 185 can transmit an audio signal to the left-ear speaker 110 and the right-ear speaker 120. That is, the beat frequency earphone 100 of this embodiment can listen to FM radio, Bluetooth, or other wireless broadcasts.

[0036] 3 is a schematic diagram of a beat frequency earphone according to another embodiment of the present invention. Referring to FIG. 3, the beat frequency earphone 200 of this embodiment is similar to the beat frequency earphone 100 of FIG. 1, so only the differences between them will be described here. The audio source connection port 270 of the beat frequency earphone 200 of this embodiment is an audio source plug, and the left-ear speaker 110 and the right-ear speaker 120 are both signal-connected to the audio source connection port 270 via wires. Therefore, the audio source connection port 270 can be inserted into an audio source output socket of an aircraft to receive external audio signals output from the audio source output socket of the aircraft in a wired manner.

[0037] The printed circuit board assembly 180 of the beat frequency earphone 200 of this embodiment may share a housing with, for example, the left-ear speaker 110, and the battery 190 may share a housing with, for example, the right-ear speaker 120, or the positions of the two may be swapped.

[0038] 4 is a schematic diagram of a beat frequency earphone according to another embodiment of the present invention. Referring to FIG. 4, the beat frequency earphone 300 of this embodiment is similar to the beat frequency earphone 100 of FIG. 1, so only the differences between them will be described here. The audio source connection port 370 of the beat frequency earphone 300 of this embodiment is an audio source plug, and the left-ear speaker 110 and the right-ear speaker 120 are both signal-connected to the audio source connection port 370 via wires. Therefore, the audio source connection port 370 can be wired to an audio source output socket of an aircraft to receive external audio signals output from the audio source output socket of the aircraft.

[0039] The beat frequency earphone 300 of this embodiment may further include a control box 380. The printed circuit board assembly 180 and the battery 190 are installed in the control box 380. Similar to the embodiment of FIG. 1, the audio source connection port 130, the wireless communication device 140, the switch 150, and the frequency adjuster 160 are, for example, all installed on the printed circuit board assembly 180. The control box 380 may further include a plurality of buttons 382 that function as an operation interface for controlling the switch 150, adjusting the volume, controlling playback, and other functions.

[0040] As described above, the beat frequency earphone of the present invention can receive external audio signals via wired or wireless methods, and therefore can be used in airplanes where wireless communication is prohibited, and has a wide range of applications. In addition, the frequency adjuster 160 allows the sound waves received by the user's two ears to have a frequency difference value, which can provide the user with corresponding effects other than hearing sound waves, such as improved concentration, better sleep, stress relief, and induction into a meditative state. [Industrial Applicability]

[0041] The present invention can be used as an earphone. [Explanation of symbols]

[0042] 50 Mobile Phones 60 audio output socket 100, 200, 300 beat frequency earphones 110 Left ear speaker 112 Case 120 Right ear speaker 130 Audio source connection port 140 Radio Communication Device 150 Switch 160 Frequency Regulator 162 Analog / Digital Conversion Circuit 164 Frequency Adjustment Circuit 166 Digital / Analog Conversion Circuit 170 Sound Source Cable 180 Printed Circuit Board Assembly 185 Radio receiver 190 Battery 270, 370 audio source connection port 380 Control Box 382 Button

Claims

1. a left ear speaker for providing a first sound wave to the left ear of the user; a right ear speaker for providing a second sound wave to the user's right ear; A wireless communication device; a frequency adjuster signal-coupled to the left ear speaker and the right ear speaker via wiring and signal-coupled to the wireless communication device; Including, The left ear speaker and the right ear speaker are fixedly connected and cannot be separated, the frequency adjuster receives an external audio signal from the wireless communication device, adjusts the external audio signal to a first audio signal, and then transmits the first audio signal to the left-ear speaker to generate the first sound wave; the frequency adjuster adjusts the external audio signal to a second audio signal, and then transmits the second audio signal to the right-ear speaker to generate the second sound wave, and a first frequency of the first audio wave and a second frequency of the second audio wave have a frequency difference value; Beat frequency earphones.

2. The audio signal processing device further includes a sound source connection port and a switch, wherein the frequency adjuster is signal-connected to the sound source connection port or the wireless communication device via the switch and receives the external audio signal from the sound source connection port or the wireless communication device. The beat frequency earphone of claim 1 .

3. Further including a sound source cable, both ends of which are inserted into the sound source connection port and the sound source output socket of the analog sound source output device, respectively; The beat frequency earphone of claim 2 .

4. The device further includes a control box, wherein the audio source connection port, the wireless communication device, the switch, and the frequency adjuster are installed in the control box. The beat frequency earphone of claim 2 .

5. The switch is a manual switch. The beat frequency earphone of claim 2 .

6. Further included is a wireless receiver used to receive FM radio broadcasts or Bluetooth broadcasts, and signal-connected to the left ear speaker and the right ear speaker via wiring. The beat frequency earphone of claim 1 .

7. the wireless communication device wirelessly communicates with a mobile phone, and the mobile phone transmits the external audio signal; The beat frequency earphone of claim 1 .

8. The wireless communication device performs Bluetooth communication. The beat frequency earphone of claim 1 .

9. the frequency adjuster includes an analog-to-digital conversion circuit, a frequency adjustment circuit, and a digital-to-analog conversion circuit, which are signal-connected in sequence; The beat frequency earphone of claim 1 .

10. the frequency difference values ​​include a plurality of switchable first frequency difference values, the plurality of first frequency difference values ​​being within two or more ranges of between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz; The beat frequency earphone of claim 1 .

11. the frequency difference values ​​include a plurality of switchable first frequency difference values, and the plurality of first frequency difference values ​​automatically cycle within two or more ranges of between 0.5 Hz and 4 Hz, between 4 Hz and 8 Hz, between 8 Hz and 12 Hz, between 12 Hz and 20 Hz, and between 25 Hz and 40 Hz; The beat frequency earphone of claim 1 .

12. The left-ear speaker and the right-ear speaker are dynamic speakers, balanced armature speakers, or bone conduction speakers. The beat frequency earphone of claim 1 .

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