KR200372533Y1 - Interference-free transmitting receiving earset - Google Patents

Abstract

The present invention relates to a transmission and reception earset without interference, comprising a housing for accommodating the speaker, a grill covering the speaker and having a front center tube, and two microphones mounted in opposite directions in the center tube of the grill, the ear canal of the user's ear canal It captures sound waves from the speaker and sound waves from the speaker, respectively, and removes interference from the sound waves from the speaker and sound waves generated in the ear canal by the user.

Description

Transmitting and receiving earset without interference {INTERFERENCE-FREE TRANSMITTING RECEIVING EARSET}

The present invention relates to a transmission and reception earset, and more particularly, to an interference-free transmission and reception earset.

Fig. 13 shows a conventional transmit / receive earset 5 for use in the cellular phone B. Figs. According to the design, the transmission and reception earset 5 is composed of a speaker 51 and a microphone 52. According to the design, the microphone 52 is arranged at a distance from the speaker 51. During communication, the microphone 52 picks up ambient noise along with the user's voice, resulting in poor communication quality.

14 illustrates a wireless communication earset according to the prior art. According to this design, the earset 6 is provided in the elongated housing 61, the speaker 62 installed at one end of the housing 61, the microphone 63 installed at the other end of the housing 61, and the housing 61. It is connected to the ear hook (ear hook) 64 to secure the housing 61 to the user's ear. The earset 6 of this design cannot eliminate interference of external noise.

U. S. Patent No. 5,909, 498 discloses a transducer device comprising a pair of transducers in the form of a speaker element and a microphone element mounted in a common housing. According to the design, the speaker element is arranged facing the external auditory canal, and the microphone element is arranged with the receiver facing out of the housing. Furthermore, a plate is interposed for isolation between the speaker element and the microphone element to prevent feedback, i.e. audio coupling. Structurally, the housing houses the speaker element and the microphone element. Indeed, the microphone element is suitable for receiving voice directly from the user's mouth. Sound waves are delivered from the user's mouth through the air and behind the housing to the microphone element and into the communication device. The microphone element is not retained inside and closed within the user's ear canal after inserting the transducer device into the user's ear. Thus, this design of the transducer device does not eliminate the microphone from receiving external noise generated by surrounding workplaces, factories and automobiles. During communication through the transducer device, ambient noise is received by the microphone element at the same time as the user's voice and transmitted to the remote communication device, thus making it impossible for the remote party to hear the user's voice in the transducer device cleanly. . Moreover, since the microphone element is disposed behind the housing and the receiver of the microphone element is concealed inside the housing, the voice reception effect of the microphone element is degraded, thereby affecting the communication quality. U. S. Patent No. 5,909, 498 discloses two separate chambers for accommodating the microphone element and the speaker element, and separating means for separating the acoustic passage and the acoustic passage into two parallel acoustic passages for each of the speaker element and the microphone element. Another embodiment of the housing is also disclosed. According to the design, the speaker element and the microphone element are disposed closed in the housing. Sound waves from the speaker element will be transmitted through the housing to the microphone element, where the microphone picks up the noise and transmits it to the remote communication device. Furthermore, since the output port of the microphone sound path and the speaker sound path are arranged close to each other, the sound waves exiting from the output port of the speaker sound path enter the output port of the microphone sound path partially. The microphone is then guided by the acoustic path for the microphone, causing the microphone to transmit feedback sound waves. Thus, the remote person's voice is transmitted back to the microphone, and the microphone will transmit feedback noise and the transducer device user's voice to the remote person. At this time, the remote person will hear the feedback sound. Interference of feedback noise greatly affects communication quality.

U. S. Patent 5,363, 444 and U. S. Patent 5,844, 984 show two other designs. According to these two designs, the microphone is located outside of the housing for picking up the user's voice. During communication, the microphone picks up not only the user's voice but also ambient noise from the surrounding workplaces, factories and cars. Since the user's voice and ambient noise are transmitted to the remote side, the person at the remote side may not be able to hear the voice of the person at the near side. Moreover, since the microphone is provided outside the housing, the microphone is not placed close to the user's mouth. Therefore, the transmission quality is bad.

The present invention was made under the circumstances considered above. The main object of the present invention is to provide an interference-free transmission and reception earset that can be inserted deep into the user's ear to hold the speaker inside the ear canal to accurately capture sound waves generated by the user and improve communication quality. Another object of the present invention is to provide an interference free transmission and reception earset which prevents interference of external noise by closing the ear canal after inserting the earset into the user's ear. It is yet another object of the present invention to provide an interference free transmit / receive earset that improves communication quality by eliminating external sound waves and noise from interfering with sound waves generated within the ear canal by a user. It is yet another object of the present invention to provide an interference free transmit / receive earset that prevents interference between a voice from a speaker and a microphone receiving sound waves generated within the ear canal by the user by allowing the user to hear the voice from the speaker. will be. Another object of the present invention is to provide an interference free transmit and receive earset, which is not expensive to manufacture.

1 is an exploded perspective view of an interferenceless transmission and reception earset according to a first embodiment of the present invention.

Figure 2 is a cross-sectional view of the assembly of the transmission and reception without interference in accordance with an embodiment of the present invention.

Figure 3 is a schematic diagram showing that the interference-free transmission and reception earset of the first embodiment of the present invention is inserted into the ear canal of a user.

4 is a cross-sectional view of the interference-free transmission and reception earset according to the second embodiment of the present invention.

5 is a cross-sectional view of the interference-free transmission and reception earset according to the third embodiment of the present invention.

6 shows the use of the first embodiment of the present invention in a mobile telephone.

7 is a cross-sectional view of a communication transceiver without interference according to the fourth embodiment of the present invention.

8 is a perspective view of the interference-free transmission and reception earset of the fourth embodiment of the present invention.

9 is an exploded perspective view of the interference-free transmission and reception earset according to the fifth embodiment of the present invention.

10 is a cross-sectional view of the assembly of the transmission and reception without interference according to the fifth embodiment of the present invention.

11 is an assembly cross-sectional view of a communication transceiver without interference according to the sixth embodiment of the present invention.

12 is a schematic diagram of the interference-free transmission and reception earset of the seventh embodiment of the present invention.

13 shows an earset according to the prior art for use in a mobile phone.

14 illustrates an earset according to the prior art for wireless communication.

In order to achieve the above and other objects of the present invention, the interference-free transmission and reception earset, the housing; A speaker mounted in the housing; A front grill fixed to the housing and covering the speaker, the front grill having a center tube and a plurality of through holes spaced about the center tube; A first microphone mounted inside the center tube of the front grille and having a receiver facing the speaker for capturing sound waves from the speaker; And a second microphone mounted inside the center tube of the front grille opposite the first microphone, the second microphone having a receiver facing outward of the center tube to receive sound waves from the ear canal of the user.

1 to 3 and 6, there is shown a interference-free transmission and reception earset according to a first embodiment of the present invention. The transceiving earset of this embodiment is a housing (1), a speaker (11) mounted in the housing (1), fixed to the housing (1) and covered over the speaker, and spaced around the center tube (122) and the center tube (122). A grill 12 having a plurality of through holes 121 disposed therebetween, a set of microphones 13 and 14 mounted in an axial center through hole 1221 of the central tube 122 of the grill 12, And an ear cushion 15 covered over the grille 122 around the central tube 122. The microphones 13 and 14 have respective wires 131 and 141 arranged together. When mounted, the receiver 132 of one microphone 13 faces the speaker 11 and the receiver 142 of the other microphone 14 faces the outside of the center tube 122 opposite the speaker 11. . When the user inserts the earset into the ear canal 21 of the ear 2, the microphones 13 and 14 are retained inside the ear canal 21. During communication, the microphone 14 captures the resonance sound waves from the ear canal 21 and transmits the captured voice signal to an external communication device, for example, the cellular phone A. FIG. At the same time, the microphone 13 captures sound waves from the speaker 11 to prevent interference with resonant sound waves generated by the user in the ear canal 21. Thus, the microphone 14 is free from interference of the speaker 11. Furthermore, since the speaker 11 is installed in the front side inside the housing 1, the microphones 13 and 14 are held inside the ear canal 21 of the ear 2, and the ear cushion 15 is ear canal 21. ), Which prevents external noise from interfering with the microphones (13, 14).

4 shows a second embodiment of the present invention. According to this embodiment, the speaker 11 is installed in the housing 1 in a rearward facing position opposite to the posture shown in FIG. 2. The housing 1 is made to have a rear opening (or grille) 16 facing the speaker 11 to allow sound waves to pass therethrough.

5 shows a third embodiment of the present invention. According to this embodiment, the silicone rubber plug 124 is secured around the central tube 122 of the grill 12 so that it can be inserted into the ear canal of the user with the earset. The silicone rubber plug 124 has a skirt portion 125 that attenuates sound waves generated by the speaker 11 to prevent the sound waves from interfering with the microphone 14.

7 and 8 show a fourth embodiment of the present invention. According to this embodiment, the speaker 11 of the earset is fixed to the hollow shell 10 for receiving the wireless transmission and reception circuit 3 and the battery 31. The battery 31 supplies the necessary operating voltage to the radio transceiver circuit 3. The wireless transmission / reception circuit 3 is electrically connected to the speaker 11 and the microphones 13 and 14. Moreover, the hollow shell 10 is provided with a hook 32 for securing the earset assembly to the user's ear.

9 and 10 show a fifth embodiment of the present invention. According to this embodiment, the interference-free transmission and reception earset is fixed to the housing 1, the speaker 11 mounted in the housing 1, the housing 1 and covered over the speaker 11, the center tube 122, Grill 12 having a plurality of through holes 121 spaced around the center tube 122 to allow sound waves from the speaker 11 to pass through, the axial direction of the center tube 122 of the grill 12 A microphone 14 mounted in the central through hole 1221, and a conical silicon rubber plug 17 secured to the central tube 122 of the grill 12. The central tube 122 has a positioning groove 123 extending around the outer circumference. The conical silicone rubber plug 17 has a rear retaining flange 171 that is secured to the positioning groove 123 of the center tube 122 of the grill 12. The conical silicon rubber plug 17 attenuates sound waves generated by the speaker 11 to eliminate interference between the sound waves and the microphone 14.

11 shows a sixth embodiment of the present invention. According to the present embodiment, the interference-free transmission and reception earset is fixed to the housing 1, the speaker 11 mounted in the housing 1, the housing 1 and covered over the speaker 11, the center tube 122, Grill 12 having a plurality of through holes 121 spaced around the center tube 122 to allow sound waves from the speaker 11 to pass through, the axial direction of the center tube 122 of the grill 12 A microphone 14 mounted inside the central through hole 1221 and partially extending out of the central tube 122, and a conical silicone rubber plug fixed to the microphone 14 outside the central tube 122 of the grill 12 ( 18). The conical silicone rubber plug 18 has a central mounting hole 182 extending through the front and rear sides and fixed to the outer circumference of the microphone 14, and a skirt-shaped outer circumferential wall 181. After inserting the earset into the ear canal of the user, the conical silicone rubber plug 18 attenuates the sound waves generated by the speaker 11 to eliminate interference of the sound waves with the microphone 14. Moreover, the central tube 122 can be made to have a plurality of radial through holes that replace the through holes 121 for the passage of sound waves from the speaker 11.

12 shows a seventh embodiment of the present invention. According to this embodiment, the interference-free transceiving earset is fixed to the housing 1, the speaker 11 mounted on the housing 1, the housing 1 and covered over the speaker 11, and with the front extension 43. A flexible grill 4 having a plurality of through holes 41 spaced around the front extension 43 and a hollow cylindrical receptacle 42 at the free end of the front extension 43. ), A microphone 14 fixed inside the central hole 421 of the hollow cylindrical receptacle 42, and a conical silicon rubber plug 18 fixed to the outer circumference of the hollow cylindrical receptacle 42. The conical silicone rubber plug 18 has a central mounting hole 182 extending through the front and rear sides, a skirt-like outer circumferential wall 181, and a plurality of radii extending through the skirt-like outer circumferential wall 181. It has a directional through hole 41. After inserting the earset into the ear canal 21 of the user, the conical silicone rubber plug 18 attenuates the sound waves generated by the speaker 11 to eliminate interference of the sound waves with the microphone 14.

Prototypes of interference-free transmission and reception earsets were made to have the features of FIGS. The interference free transmit and receive earsets work smoothly to provide all of the features described above.

Although specific embodiments of the present invention have been described in detail for illustrative purposes, various modifications and improvements can be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited in scope except by the appended claims.

According to the above-described interferenceless transmission and reception earset of the present invention, when connected to a communication device such as a mobile phone and used, for example, interference between sound waves from the speaker of the earset and sound waves generated in the ear canal by the user is eliminated. Improve call quality.

Claims (8)

housing; A speaker mounted in the housing; A front grille fixed to the housing and covering the speaker, the front grill having a plurality of through holes spaced around the center tube and the center tube; A first microphone mounted inside the center tube of the front grill and having a receiver facing the speaker for capturing sound waves from the speaker; And And a second microphone mounted opposite to the first microphone inside the center tube of the front grill and having a receiver facing out of the center tube to receive sound waves from the ear canal of the user. The earpiece-free transmission / reception earset according to claim 1, wherein the housing has a rear grille at a rear side corresponding to the speaker. The interference-free transmission and reception earset according to claim 1, further comprising a conical silicone rubber plug fixed to an outer circumference of the central tube and having a skirt-shaped outer circumferential wall. housing; A speaker mounted in the housing; A front grille fixed to the housing and covering the speaker, the front grill having a plurality of through holes spaced around the center tube and the center tube; A first microphone mounted inside the center tube of the front grill and having a receiver facing the speaker for capturing sound waves from the speaker; A second microphone mounted opposite to the first microphone inside the center tube of the front grill and having a receiver facing outward of the center tube to receive sound waves from the ear canal of the user; A wireless transceiver circuit module installed in the housing and electrically connected to the speaker and the second microphone; And And a hook fixedly connected to an outer circumference of the housing to secure the housing to a user's ear. housing; A speaker mounted in the housing; A front grille secured to the housing and covering the speaker, the front grill having a plurality of through holes spaced about the center tube and spaced around the center tube, the center tube having a positioning groove extending around an outer periphery; A microphone mounted inside the center tube of the front grill and having a receiver facing outward of the center tube to receive sound waves from a user's ear canal; And And a conical silicone rubber plug fixed to an outer periphery of said center tube, said conical silicone rubber plug having a skirt-shaped outer periphery wall and a rear retaining flange secured to said positioning groove of said center tube of said front grille. 6. The interference free transmission and reception earset of claim 5, wherein the center tube has a plurality of radially extending through holes. housing; A speaker mounted in the housing; A hollow cylindrical receptacle fixed to the housing and covering the speaker, the front extension portion, a plurality of through holes disposed at regular intervals around the front extension portion, and integrally formed with the front end of the front extension portion; Rubber front grille; And And a microphone mounted in the hollow cylindrical receptacle for receiving sound waves from a user's ear canal. 8. The central mounting hole of claim 7, further comprising a conical silicone rubber plug fixed to the hollow cylindrical receptacle, wherein the conical silicone rubber plug extends through the front side and the rear side and is fixed to an outer circumference of the hollow cylindrical receptacle. And an interference-free transmission and reception earset having a skirted outer circumferential wall and a plurality of radial through holes extending through the skirted outer circumferential wall.