TW200830921A - Device with internal uni-directional microphone - Google Patents

Abstract

A device comprises a microphone housing and a uni-directional microphone. The microphone housing includes a first acoustic passage and a second acoustic passage. The uni-directional microphone is disposed in the microphone housing, comprising a first surface receiving external sound via the first acoustic passage, and a second surface receiving the external sound via the second acoustic passage, wherein the first acoustic passage runs parallel to the first surface of the uni-directional microphone.

Description

200830921 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to an electronic device having a directional microphone built therein. [Prior Art] A Uni-directional Microphone can clearly receive sound in a specific direction (usually in front of a microphone) while suppressing the sound of a high-definition sound, so it is usually applied to a high-quality recorder or communication device. .

Most electronic devices (such as cell phones, personal digital assistants, etc.) have plastic or metal casings that have the effect of isolating sound, making it difficult for the microphones placed inside the casing to receive external sound. Therefore, the directional microphone that originally performed well in the open space, once installed in the electronic device, is hindered by the outer casing, and its performance is changed. Therefore, the directional microphone is usually connected to the electronic device by an external connection. Come use to ensure the quality of its radio. [Invention] The present invention provides a directional microphone in which a directional microphone is not affected by the outer casing, and still has excellent effect. The device with a directional microphone built in the present invention includes a cool & now. Body and a directional microphone. Among them, the Mike-Ecker wind shell channel and the second sound channel. The directional microphone setting=^ the inside of the housing includes a first surface and a second ^ 风 ^ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The sound channel is substantially parallel to

Client5s Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 5 200830921 - The first surface. Wherein, the aforementioned second sound passage may be substantially parallel to the second surface of the directional microphone. Alternatively, the aforementioned second sound channel may be substantially at an acute angle to the second surface of the directional microphone. Wherein, the first surface may be a front surface of the directional microphone. Wherein, the second surface may be a rear surface of the directional microphone. The microphone housing may further include an outer surface and a shock absorbing rib, and the shock absorbing rib is disposed on the outer surface. The device with built-in directional microphone of the present invention may further include a casing, the microphone casing is disposed in the casing, and the microphone casing further includes an airtight ring, the airtight ring is in contact with the casing, and the sound surrounding the first sound channel Entrance. The device incorporating the directional microphone of the present invention may further include a venting cover covering the sound inlet of the first sound channel. The device with built-in directional microphone of the present invention may further include an outer casing, the microphone casing being disposed in the outer casing, the microphone casing further comprising an airtight ring, the airtight ring contacting the outer casing, and surrounding the second sound passage Sound entrance. The device incorporating the directional microphone of the present invention may further include a venting cover covering the sound inlet of the second sound passage. The device with a directional microphone built in the present invention may further include a casing. The microphone casing is disposed in the casing. The microphone casing further includes an airtight protrusion. The airtight protrusion has a through hole, and the through hole communicates with the first sound. The passage, the outer casing has an opening, and the airtight projection is disposed in the opening.

Client’s Docket No.: for06-0031 TT’s Docket NcK〇958-A41096-TW/Final/Shen Yizong / 6 200830921 = Medium, the airtight protrusion is roughly circular. Alternatively, the airtight projection is substantially square. The directional microphone case of the present invention is provided in the outer casing, and the microphone housing is disposed in the outer casing. The 1st part can further include an outer protrusion. The airtight protrusion has a 甬/克 wind installation body, and the airtight channel is further included. And the right one/,, the through hole communicates with the second sound through and the airtight protrusion is disposed in the opening. Second, the airtight projection is substantially circular.

Or the 'gas fee protrusion' is roughly square. Sexual clips ί: The device with a directional microphone built into the alum can include an omnidirectional storage space: the squid body includes a first-storage space and a second, s,,, ^ brother storage space connection A sound channel and a second sound are connected to the first sound channel and the directional microphone π. In a storage space, the omnidirectional microphone is disposed in the second storage space. The eighth microphone housing may further include a first portion and a second portion, the portion including a first cassette and a second cassette, the first cassette, the second cassette having the same size, and the second portion Including - the first pupil and the brother-in-law, a pupil accommodates the first "-^榫, and the second pupil accommodates the first cassette. - Alternatively, the microphone housing may further include a first portion and a second portion, the first portion including a first opening, the second portion including a second opening, the first opening and the second opening forming a The first storage space is for accommodating the directional microphone.曰 Alternatively, the device with a directional microphone built in the present invention may further include

Client's Docket No:: for06-0031 TT's Docket No:0958-A41096-TW/Final/Shen Yizong / 7 200830921 An omnidirectional microphone, wherein the first part further includes a part including a fourth opening, the third opening And the second opening, the second storage space for omnidirectional microphones. The four-hole opening constitutes a first one, wherein the directional microphone may further include a first portion and a second portion of the electric wire, the ridge housing further includes a groove, and the second portion includes a second riding, the first groove ^ = Include a first groove into a channel for the power line to pass. Second groove structure

Due to the extension of the first sound channel, the front surface of the wind can make the sound in the microphone 仃 指向 曰 ^ 七 “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ 减 减 如此 如此 如此 如此 如此 如此 如此 如此 如此 如此 如此 如此 如此Built in the outer casing of the device, but with reduced plenum performance, and the volume of the microphone housing can also be minimized. The above objects, features, and advantages of the present invention can be more clearly understood. The present invention provides a device with a directional microphone built in. The device can be a notebook computer as shown in FIG. 1 (N〇teb〇〇k Computer). ) Liquid crystal display (LCD) shown in Fig. 1β, Global Positioning System Receiver (GPS Receiver) shown in Fig. 1C, or Personal Digital Assistant (PDA), The web camera shown in the ID diagram, the earphone (Earphone) shown in the IE diagram, the cell phone (Cellular Phone) shown in the IF diagram, and the car (Car) shown in the 1G diagram. 1H shown in FIG telephone microphone (Speakerphone), or

Client?s Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 200830921 , Various other devices. The direction of the directional microphone ίο in the figure is indicated by an arrow. 2A to 2F show an embodiment of the present invention in which the microphone housing 20 includes a first portion 22 and a second portion 24. The first portion 22 is provided with an airtight ring 223 at the front, a plurality of shock ribs 222 on the top surface, the side surface, and the rear surface, and a microphone socket 221 (2D view) on the bottom surface. A first hole 224 and a second card 225 are disposed on opposite sides of the seat 221, and a first groove 2241 is disposed on the first card 224. The microphone housing 221 has a storage space 2211 for receiving a directional microphone. A sound inlet 2261 is disposed in front of the first portion 22, and a gas tight ring 223 surrounds the sound inlet 2261. A first sound channel 226 (Fig. 2E) is also disposed within the first portion 22, and the first sound channel 226 is coupled to the sound inlet 2261 and the storage space 2211. The second portion 24 is provided with an airtight ring 243 at the front, a plurality of shock absorbing ribs 242 on the bottom surface, the side surface, and the rear surface, and a receiving space 2411 (2D view) on the top surface, in the accommodating space 2411. A first bore 244 and a second bore 245 are respectively disposed on opposite sides of the second side, and a second groove 2441 is disposed in the first bore 244. A sound inlet 2461 is disposed in front of the second portion 24, and the airtight ring 243 surrounds the sound inlet 2461. A second sound passage 246 (Fig. 2F) is also disposed in the second portion 24, and the second sound passage 246 is connected to the sound inlet 2461 and the accommodation space 2411. When assembling, the directional microphone 1 先 is first placed on the first portion 22

Client's Docket No:: for06-0031 TT, s Docket No: 0958-A41096-TW/Final/Shen Yizong / 9 200830921 , Storage Worker $ 2211, then place the microphone holder (2) of the _th part 22 at the second part 24 In the accommodating space 2411, and the first card is placed in the first boring 244, the second ferrule 225 is placed in the second boring 245, and the second groove 2241 and the second groove 2441 are formed. Channel 29 (2C, the wire 101 of the directional microphone 10 passes (Fig. 2G). Please share the % mH diagram and the 21st diagram, then place the assembled microphone housing 20 into the outer casing 42 of a device, and then Covered by a cover 31. The outer casing 42 has an opening 45 for exposing the sound inlets 2261 and 2461 of the microphone housing 20. The inner surface of the outer casing 42 is also provided with a groove for receiving the suction on the bottom surface of the second clamp 24. The ribs 242 are shown. However, it can be appreciated that the grooves 46 are not present. If the grooves 4 are not provided, the outer casing 42 has a flat/month inner surface and the shock absorbing rib 242 is in direct contact with the smooth inner surface. The airtight rings 223 and 243 surround the sound inlets 2261 and 2461 and are in close contact with the outer casing 42 The inner surface prevents gaps from being generated and causes leakage. The shock absorbing ribs 222 and 242 provided on the outer surface of the microphone housing are used to prevent the external shock from being transmitted to the directional microphone 10 inside thereof, providing protection. At the same time, the front surface of the directional microphone 10 can receive the sound of the outside world via the sound inlet 2261 and the first sound channel 226, while the rear surface of the directional microphone ίο can receive the external sound via the sound inlet 2461 and the second piano channel 246. Since the extending direction of the first sound channel 226 is substantially parallel to the front surface of the directional microphone 1 ,, the distance traveled by the sound in the microphone housing 20 can be minimized, so that the directional microphone 1 is Built into the outer casing 42 of the device, but still

Client’s Docket No·: for〇6-〇〇3l TT’s Docket Ν〇:0958-Α41096· D/W/Final/Shen Yizong / 10 200830921 Luxury has good performance and the volume of the microphone housing 20 can be minimized. In the present embodiment, the extending direction of the second sound passage 246 is substantially parallel to the rear surface of the directional microphone 1 。. The sizes of the first and second apertures 244 and 245 are respectively matched to the sizes of the first and second cassettes 224 and 225. In this embodiment, the sizes of the first and second cassettes 224 and 225 are different. During the assembly process, a portion 22 and a second portion 24 are reversed, that is, the first cartridge 224 is loaded into the second bore 245, and the second cartridge 225 is inserted into the first bore 244. . 3A and 3B show another embodiment of the present invention, wherein the same elements as those of the previous embodiment will be given the same reference numerals. In this embodiment, the sound inlets 2261 and 2461 are covered with a venting cover 43 to prevent intrusion of dust. 4A and 4B show still another embodiment of the present invention, and the same elements as those of the foregoing embodiment will be given the same reference numerals. In this embodiment, the outer casing 32 has substantially circular openings 321 and 322, and the microphone 10 housing 20 has circular airtight projections 34 and 36 which are respectively received in the circular openings 321 and 322. It prevents gaps in the joints and causes sound leakage. The airtight projection 34 has a through hole 341 which communicates with the aforementioned sound inlet 2261 to allow external sound to enter the first sound passage 226. The other airtight projection 36 also has a through hole 361 which communicates with the aforementioned sound inlet 2461 to allow external sound to enter the second sound passage 246. 5A and 5B show still another embodiment of the present invention, wherein

Client’s Docket No.: f〇r06-0031 TT’s Docket No:0958-A41096-TW/Final/Shen Yizong / 11 200830921

The same elements as those of the two embodiments will be given the same reference numerals. In this embodiment, the microphone housing 2 has substantially square airtight projections 54 and 56' corresponding to the square openings of the outer casing 52, thereby preventing gaps in the joints from being generated and causing sound leakage. The airtight projection 54 has a through hole 541 which communicates with the aforementioned sound inlet 2261 to allow external sound to enter the first sound passage 226. The other airtight projection 50 also has a through hole 561' which communicates with the aforementioned sound inlet 2461 to allow external sound to enter the second sound passage 246. 6A, 6B, and 6C show another embodiment of the present invention, wherein the microphone housing is composed of a first portion 62 and a second portion 64, and the first portion 62 and the second portion (four) are originally It is a one-piece structure. When assembling, the first portion 62 and the second portion 64 / mouth are first cut with a straight line cc, then the second portion 64 is turned over with the top portion facing downward, and then the positioning pin 625 of the first portion 62 is inserted into the second portion. In the positioning hole 646 of the portion 64, the positioning pin 5 of the second portion material is correspondingly inserted into the positioning hole 628 of the first portion 62, so that the first portion 62 and the second portion 64 are joined together. Referring to Fig. 6D, the first opening 621 of the first portion 621 and the second opening of the second portion constitute a first storage space 66 for accommodating a directional microphone (not shown). The first portion 62 has a channel 623 for the directional microphone; the line passes. Referring to FIG. 6E, on the other hand, the second opening 622 of the first portion and the fourth opening 642 of the second portion 64 form a second storage space 67 for accommodating an omnidirectional microphone (not shown). And the first trench 62 of the first location 62 and the second trench 64 of the second location 64 =

Client’s Docket No.··for06-0031 TT’s Docket No:0958-A410%-TW/Final/Shen Yizong / 12 200830921 Into another 'wire for this omnidirectional microphone. At the time, the middle, when the directional microphone breaks into the front surface of the wind in the microphone housing, and the extension direction of the second sound channel is clipped to the rear surface of the directional microphone - an acute angle. In operation, the directional microphones in the first to the sub-station 66 and the full sigma microphones in the second storage space 67 form a microphone array (鸠(10) 冲(四)Α).

FIG. 7A and FIG. 7B show another embodiment of the present invention, wherein the microphone housing includes a first portion 72, a second portion 74, a first sound, a track 726, a second sound channel 746, and a first a storage space and a second storage space. The first sound channel 726 is disposed in the first portion 72. The second sound channel 746 is disposed in the second portion 74. The first storage space is connected between the first sound channel 726 and the second sound channel 746 for A directional microphone 1 容纳 is accommodated, and a second storage space is connected to the first arpeggio channel 726 for accommodating the omnidirectional microphone 12. As can be seen, the direction of extension of the first sound channel 726 is substantially parallel to the front surface of the directional microphone W, and the direction of extension of the second sound channel 746 is at an acute angle to the rear surface of the directional microphone. The directional microphone 10 in the first storage space and the omnidirectional microphone 12 in the second storage space will constitute a microphone array 'When operating, the directional microphone 10 can pass through the voice channel 726 and the second sound channel 746 While receiving the external sound, the omnidirectional microphone 12 receives the external sound 0 via the first sound channel 726. Similarly, since the direction of extension of the first sound channel 726 is substantially flat

Client's Docket No.: f〇r06-0031 TT's Docket N〇:0958-A41096-TW/Final/Shen Yizong / 200830921 螓• ^ On the front surface of the directional microphone 10, the distance the sound can travel in the microphone housing is reduced. To the shortest, in this way, although the directional microphone is built in the outer casing of the device, it still has good performance, and the volume of the hood shell can be minimized. To the clerk/introspector, in the present embodiment, the extending direction of the second sound passage 746 is substantially p acute (non-parallel) to the rear surface of the directional microphone 1G, which is different from the embodiment shown in the previous FIG. 2G. . The present invention has been disclosed in the above preferred embodiments, and it is not intended to limit the scope of the invention, and Any changes and modifications may be made, and the scope of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A to 1H show various examples of a device incorporating a directional microphone of the present invention; FIG. 2A shows a body diagram of one of the microphone housings according to the present invention; '2B Figure 2A is an exploded view of the microphone housing; Figure 2C is a perspective view of the microphone housing of Figure 2A viewed from different angles; '2D is an exploded view of the microphone housing of Figure 2C; Figure 2E a vertical view of the first portion of the microphone housing of Figure 2A; " 2F is a cross-sectional view of the second portion of the microphone housing of Figure 2; "

Client's Docket No·· f〇r06-0031 TT's Docket No:0958_A41096-TW/Final/Shen Yizong/200830921 ** 2G is a cross-sectional view of the microphone housing of Figure 2A, with a directional microphone inside; 2H is a diagram of a microphone housing of FIG. 2A and an exploded view of a device, FIG. 21 is a combination of a microphone housing and a device of FIG. 2H; FIG. 3A is a microphone housing and a ventilation cover according to the present invention. Exploded view of an embodiment; FIG. 3B is a combination of a microphone housing and a venting cover of FIG. 3A; FIG. 4A is an exploded view of still another embodiment of the microphone housing and housing according to the present invention; Figure 4A is a perspective view of a microphone housing and a housing; Figure 5A is a perspective view of still another embodiment of the microphone housing according to the present invention; Figure 5B is a combination of a microphone housing and a housing of Figure 5A. Figure 6A is a perspective view of the microphone housing according to another embodiment of the present invention before assembly; Figure 6B is a cross-sectional view of the microphone housing of Figure 6A taken along line VIB-VIB; Figure 6D Department 6B Wind sectional view of the housing assembly; FIG. 6E based on cross-sectional view of the microphone housing of FIG. 6C after assembly; FIG. 7A based on a perspective view of the microphone according to another embodiment of the housing according to the present invention;

Client's Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 15 200830921 Figure 7B is a cross-sectional view of the microphone housing of Figure 7A. [Description of main component symbols] 10 to directional microphone 20 to microphone housing 24 to second portion 31 to cover 34 to airtight projection 42 to outer casing 45 to opening 5 2 to outer casing 56 to airtight projection 62 to · ^ portion 66 ~ first storage space 72 ~ first portion 101 ~ wire 222 ~ shock absorbing rib 224 ~ first card 226 ~ first sound channel 243 ~ airtight ring 245 ~ second pupil 3 21 ~ opening 341 ~ through hole 541 to through hole 621 to first opening 12 to omnidirectional microphone 22 to first portion 29 to channel 32 to outer casing 36 to airtight projection 43 to venting cover 46 to groove 54 to airtight projection 61 to channel 64 to second portion 67 to second storage space 74 to second portion 221 to microphone holder 223 to airtight ring 225 to second card 242 to shock absorbing rib 244 to first pupil 246 to second sound Channel 3 22 ~ opening 361 ~ through hole 561 ~ through hole 622 ~ third opening

Client's Docket No:: for06-0031 XT's Docket No: 0958-A41096-TW/Final/Shen Yizong / 16 200830921 623~Channel 625~Positioning pin 62 8~Positioning hole 642~4th opening 64 5~Positioning pin 726~ a sound channel 2211 - storage space 2261 ~ sound inlet 2441 ~ second groove 624 ~ first groove 626 ~ first sound channel 641 ~ second opening 644 ~ second groove 646 ~ positioning hole 746 ~ second Sound channel 2241 ~ first groove 2411 ~ accommodation space 2461 ~ sound inlet

Client’s Docket No.: for06-0031 TT’s Docket No:0958-A41096-TW/Final/Shen Yizong /

Claims (1)

200830921 X. Patent application scope: 1. A device with a directional microphone built in, comprising: a microphone housing comprising a first sound channel and a second sound channel; a directional microphone disposed in the microphone housing a first surface and a second surface, the external sound reaching the first surface and the second surface via the first sound channel and the second sound channel, respectively, wherein the first sound channel is substantially parallel to the The first surface of the directional microphone. 2. The device of claim 1, wherein the second sound channel is substantially parallel to the second surface of the directional microphone. 3. The device of claim 1, wherein the second sound channel is substantially at an acute angle to the second surface of the directional microphone. 4. The device incorporating the directional microphone ® as described in claim 1, wherein the first surface is a front surface of the directional microphone. 5. The device of claim 1, wherein the second surface is a rear surface of the directional microphone. 6. The device as claimed in claim 1, wherein the microphone housing further comprises an outer surface and a shock absorbing rib, the shock absorbing rib being disposed on the outer surface. 7. The device as claimed in claim 1, further comprising a housing, the microphone housing being disposed in the housing, Client's Docket No.: for06-0031 TT, s Docket No :0958-A41096-TW/Final/Shen Yizong / 18 200830921 The microphone housing further includes an airtight ring that contacts the outer casing, and surrounds the sound inlet of the first sound passage. 8. The device of claim 7, further comprising a venting cover covering the sound inlet of the first sound channel 0. 9. claiming in claim 1 a device having a directional microphone, further comprising a casing, the microphone casing being disposed in the casing, the microphone casing further comprising an airtight ring, the airtight ring contacting the casing, and surrounding the The sound inlet of the second sound channel. 10. The device having a directional microphone built in the ninth application of the patent application, further comprising a venting cover covering the sound of the second sound channel into the σ 〇 11 · as claimed in claim 1 The device has a directional microphone built therein, and further includes a casing, wherein the microphone casing is disposed in the casing, the microphone casing further includes a gas-tight protrusion, the airtight protrusion has a through hole, and the through hole Connected to the first sound channel, the outer casing has an opening, and the airtight protrusion is disposed in the opening. 12. The device of claim 11, wherein the airtight projection is substantially circular. 13. The device of claim 3, wherein the airtight projection is substantially square. 14. The device as claimed in claim 1, further comprising a housing, the microphone housing being disposed in the housing, the microphone housing further comprising an airtight protrusion, the gas The dense protrusion has a Client's Docket No:: for06-0031 TT, s Docket No: 0958-A41096-TW/Final/Shen Yizong / 19 200830921 through hole, the through hole is connected to the second sound channel, and the outer casing has an opening a hole, and the airtight protrusion is disposed in the opening. Ϊ5. The device of claim 14, wherein the airtight projection is substantially circular. W. A device incorporating a directional microphone as described in claim 14 wherein the airtight projection is substantially square. The device of claim 1 , further comprising an omnidirectional microphone, the microphone housing further comprising a first storage space and a second storage space, the first a storage space is connected to the first sound channel and the second sound channel, the second storage space is connected to the first sound channel, the directional microphone is disposed in the first storage space, and the omnidirectional microphone is disposed on the In the second storage space. 18. The device of claim 1, wherein the microphone housing further includes a first portion and a second portion, the first portion including a first cassette and a first portion The second cassette has a different size, and the second part includes a first pupil and a second aperture, the first aperture receiving the first cassette, The second bore accommodates the second cassette. The device of claim 1 , wherein the microphone housing further includes a first portion and a second portion, the first portion including a first opening, The second portion includes a second aperture, and the first aperture and the second aperture form a first storage space for the directional microphone. 20· As described in claim 19, there is a directional microphone Client's Docket No.: for06-0031 TT's Docket No: 0958-A41096-TW/Final/Shen Yizong / 20 200830921 Wind device, which further includes a An omnidirectional microphone, wherein the first portion further includes a third opening, the second portion further includes a fourth opening, the third opening and the fourth opening forming a second storage space for Accommodate the omnidirectional microphone. 21. The device of claim 1, wherein the directional microphone further comprises an electric wire, the microphone housing further comprising a first portion and a second portion, the first portion A first trench is included, and the second portion includes a second trench, and the first trench and the second trench form a channel for the wire to pass through. Client’s Docket No.: for06-0031 TT’s Docket No:0958-A41096-TW/Final/Shen Yizong / 21