CN201426168Y - microphone headset - Google Patents

Abstract

A microphone headset is adapted to receive sound signals generated by an external sound source. The microphone headset includes a housing, a first microphone, and a second microphone. The housing has a front side and a rear side. The first microphone is disposed within the housing adjacent the front side. The second microphone is disposed in the housing adjacent to the rear side, wherein a distance between the first microphone and the external sound source is different from a distance between the second microphone and the external sound source. Therefore, the time point and the signal intensity of the sound signal (call sound or noise) generated by the external sound source transmitted to the two microphones are different, so as to be used as the basis for the microphone earphone to distinguish the call sound from the noise. Therefore, the correctness of distinguishing the call sound and the noisy sound by the microphone earphone can be improved.

Description

microphone headset

technical field

The utility model relates to an earphone, in particular to a microphone earphone.

Background technique

With the continuous advancement of science and technology, all electronic products are developing towards the trend of lightweight and miniaturization. People can use miniaturized electronic products, such as radios or walkmans, anytime and anywhere. In addition, due to the increasing popularity of personal digital products, such as common MP3 players, mobile phones, personal digital assistants (Personal Digital Assistant, PDA) or notebook computers (Notebook Computer), etc., are indispensable in daily life. In addition, mobile phones that combine radio and MP3 functions have also appeared.

Regardless of the above-mentioned electronic products, in order to allow consumers to listen to the sound information provided by the electronic product without disturbing others, earphones have become a necessary accessory for the electronic product. In addition, the earphone also provides better sound transmission for the listener, so that the listener can clearly hear and understand the sound content, unlike the unclear situation caused by the sound transmission in the air, and especially when the consumer is moving, For example, it will not be affected by sports, driving, intense activities or noisy environments.

In terms of the use of mobile phones, the microphone earphones with the function of receiving and speaking can reduce the possible harm of electromagnetic waves to the human body, and at the same time allow consumers to enjoy the convenience brought by mobile phones even when their hands are empty. When the user uses the microphone headset to make a phone call in a noisy environment, in addition to the user's own call sound will be received by the microphone headset microphone, the surrounding noise will also be received by the microphone, so the user must increase the volume to The call went smoothly.

In order to improve the situation that this kind of noise interferes with the call, the microphone earphone must be able to filter the noise. However, after the microphone receives the sound signal, it is often impossible to clearly distinguish whether the sound signal is a call sound or a noisy sound, so the noisy sound cannot be filtered out smoothly.

Utility model content

The utility model provides a microphone earphone, which can improve the correctness of distinguishing call sounds and noisy sounds.

The utility model provides a microphone earphone, which is suitable for receiving sound signals generated by external sound sources. The microphone earphone includes a casing, a first microphone and a second microphone. The housing has a front side and a rear side. The first microphone is disposed in the shell and adjacent to the front side. The second microphone is disposed in the shell and adjacent to the rear side, wherein the distance between the first microphone and the external sound source is different from the distance between the second microphone and the external sound source.

In an embodiment of the present invention, the above-mentioned microphone earphone further includes a circuit board, wherein the first microphone and the second microphone are respectively disposed on opposite sides of the circuit board.

In an embodiment of the present invention, the above-mentioned microphone earphone further includes a cover disposed on the circuit board to cover the first microphone.

In an embodiment of the present invention, the above-mentioned cover body has a sound absorbing portion extending toward the front side.

In an embodiment of the present invention, the above-mentioned microphone earphone further includes a cover disposed on the circuit board to cover the second microphone.

In an embodiment of the present invention, the above-mentioned cover body has a sound absorbing portion extending toward the rear side.

In an embodiment of the present invention, the above-mentioned microphone earphone further includes a speaker portion extending from the front side of the casing.

In an embodiment of the present invention, the above-mentioned microphone earphone further includes an ear hook connected to the speaker part.

In an embodiment of the present invention, one end of the above-mentioned ear hook has a ring structure and is sheathed on the speaker part.

Based on the above, the microphone earphone of the present utility model has two microphones, and there is a distance between the two microphones, so that the time point and signal strength of the sound signal (talking sound or noise) generated by the external sound source are transmitted to the two microphones The difference is used as the basis for the microphone and earphone to distinguish the call sound from the noise. In this way, the accuracy of the microphone earphone in distinguishing the call sound and the noisy sound can be improved.

Description of drawings

In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings, wherein:

FIG. 1 is a rear view of part of the structure of a microphone earphone according to an embodiment of the present invention.

FIG. 2 is a partial structural side view of the microphone earphone in FIG. 1 .

FIG. 3 is an exploded view of the microphone earphone in FIG. 1 .

Description of main component symbols:

100: Microphone headset 110: Housing

112: front side 114: back side

120: the first microphone 130: the second microphone

140: circuit board 150, 160: cover body

152, 162: Radio Department 170: Speaker Department

180: ear hook 182: ring structure

Detailed ways

FIG. 1 is a rear view of part of the structure of a microphone earphone according to an embodiment of the present invention. FIG. 2 is a partial structural side view of the microphone earphone in FIG. 1 . FIG. 3 is an exploded view of the microphone earphone in FIG. 1 . Please refer to FIG. 1 to FIG. 3 , the microphone earphone 100 of this embodiment is suitable for receiving sound signals generated by external sound sources. The microphone headset 100 includes a housing 110 , a first microphone 120 and a second microphone 130 .

The housing 110 has a front side 112 and a rear side 114 . The first microphone 120 is disposed in the casing 110 and adjacent to the front side 112 . The second microphone 130 is disposed in the casing 110 adjacent to the rear side 114 , wherein the distance between the first microphone 120 and the external sound source is different from the distance between the second microphone 130 and the external sound source. In other words, since the first microphone 120 and the second microphone 130 are disposed at different positions, the distance between any external sound source and the first microphone 120 must be different from the distance between it and the second microphone 130 . In this configuration, the time points and signal strengths of the sound signals transmitted from any external sound source to the first microphone 120 and the second microphone 130 are also different. Thereby, it can be used as a basis for filtering the sound signal.

Please refer to FIG. 2 , for example, a specific value (or a specific range) can be obtained by pre-calculating the time required for the sound signal to transmit from the location of the first microphone 120 to the location of the second microphone 130 . When the user sends a sound signal to the first microphone 120 (at this time, the external sound source is the user's mouth, for example, at A), the sound signal will be transmitted to the first microphone 120 first, and then to the The second microphone 130 , and the time difference transmitted to the first microphone 120 and the second microphone 130 will meet a pre-calculated specific value (or specific range), so the sound signal can be determined as a call sound from the user. Sound signals that do not meet the above-mentioned specified value (or specified range) can be judged as noise and filtered to improve the communication quality. In addition, when the user speaks into the first microphone 120, the intensity of the sound signal transmitted to the first microphone 120 and the intensity of the sound signal transmitted to the second microphone 130 will also be different, which can further enhance the conversation. Judgment accuracy of sound and noise.

Please refer to FIG. 1 to FIG. 3. In this embodiment, the microphone headset 100 further includes a circuit board 140, wherein the first microphone 120 and the second microphone 130 are respectively disposed on opposite sides of the circuit board 140 and adjacent to the front of the housing 110. side 112 and rear side 114 . In addition, the microphone earphone further includes a cover body 150 and a cover body 160 . The cover 150 and the cover 160 are disposed on the circuit board 140 to cover the first microphone 120 and the second microphone 130 respectively. The cover body 150 and the cover body 160 respectively have a sound receiving part 152 and a sound receiving part 162, respectively extending toward the front side 112 and the rear side 114 of the housing 110, so that the first microphone 120 and the second microphone 130 can pass through the sound receiving part 152 and the sound receiving part 152 respectively. The sound receiving unit 162 smoothly receives external sound signals. The cover 150 and the cover 160 can prevent the sound signal transmitted to the first microphone 120 and the second microphone 130 from continuing to be transmitted inside the housing 110 and interfere with the determination of the sound signal.

Please refer to FIG. 1 to FIG. 3 , in this embodiment, the microphone earphone 100 further includes a speaker part 170 extending from the front side 112 of the housing 110 and an ear hook 180 connected to the speaker part 170 , wherein one end of the ear hook 180 It has a ring structure 182 for sheathing on the speaker part 170 . When wearing the microphone headset 100 , the ear hook 180 can be hung on the user's ear, so that the first microphone 120 on the front side 112 is close to the user's mouth, and the second microphone 130 faces outward. In this way, the user can speak into the first microphone 120 conveniently, so as to facilitate the above-mentioned sound signal determination.

In summary, the microphone earphone of the present utility model has two microphones, and there is a distance between the two microphones, so that the sound signal (communication sound or noise) generated by the external sound source is transmitted to the time point and time point of the two microphones. The signal strength is different, which is used as the basis for the microphone and earphone to distinguish the call sound from the noise. In addition, the hood covering the microphone prevents sound signals from being transmitted inside the housing. Thereby, the correctness of determining the sound signal by the microphone and the earphone can be improved.

Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the claims.

Claims (9)

1. A kind of microphone earphone, is suitable for receiving the sound signal that an external sound source produces, it is characterized in that, this microphone earphone comprises: A shell has a front side and a rear side; a first microphone disposed within the housing adjacent the front side; and A second microphone is disposed in the casing and adjacent to the rear side, wherein the distance between the first microphone and the external sound source is different from the distance between the second microphone and the external sound source. 2 . The microphone earphone as claimed in claim 1 , further comprising a circuit board, wherein the first microphone and the second microphone are respectively disposed on opposite sides of the circuit board. 3 . 3. The microphone earphone as claimed in claim 2, further comprising a cover disposed on the circuit board to cover the first microphone. 4. The microphone earphone as claimed in claim 3, wherein the cover body has a sound absorbing portion extending toward the front side. 5. The microphone earphone as claimed in claim 2, further comprising a cover disposed on the circuit board to cover the second microphone. 6 . The microphone earphone as claimed in claim 5 , wherein the cover body has a sound absorbing portion extending toward the rear side. 7 . 7. The microphone earphone as claimed in claim 1, further comprising a speaker extending from the front side of the casing. 8. The microphone earphone as claimed in claim 7, further comprising an ear hook connected to the speaker part. 9 . The microphone earphone as claimed in claim 8 , wherein one end of the ear hook has a ring structure and is sheathed on the speaker part. 10 .

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