TWI355206B - Device with internal uni-directional microphone - Google Patents

Description

1355206 - Nine, invention description: [Technical field to which the invention pertains] The present invention relates to an electronic device in which a directional microphone is built. [Prior Art] A Uni-directional Microphone can clearly receive sound in a specific direction (usually in front of a microphone) while suppressing environmental noise, so it is usually applied to a high-quality recorder or communication device. • Most electrical sub-devices (such as cell phones, personal digital assistants, etc.) have plastic or metal enclosures that have the effect of isolating sound, making it difficult for the microphones placed inside the enclosure to receive external sound. Therefore, the directional microphone that originally performs well in the open space, once installed in the electronic device, is significantly hindered by the outer casing, so that the directional microphone is usually connected to the electronic device in an external manner. Come use to ensure the quality of its radio. SUMMARY OF THE INVENTION The present invention provides a device with a directional microphone built in, wherein the directional microphone is not affected by the outer casing and still has excellent performance. The device incorporating the directional microphone of the present invention includes a microphone housing and a directional microphone. The microphone housing includes a first sound channel and a second sound channel. The directional microphone is disposed in the microphone housing, and includes a first surface and a second surface, and the external sound reaches 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 directional microphone

Client's Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 1355206 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 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 comprise 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 the sound inlet surrounding the second sound channel . 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 No: 0958-A41096-TW/Final/Shen Yizong/6 1355206 * The airtight protrusion is substantially circular. Alternatively, the airtight projection is substantially square. The device with a directional microphone built in the present invention may further include an outer casing. The microphone casing is disposed in the outer casing. The microphone casing further includes an airtight protrusion. The airtight protrusion has a through hole, and the through hole is connected to the through hole. The second sound channel has an opening and the airtight protrusion is disposed in the opening. Among them, the airtight protrusion is substantially circular. Alternatively, the airtight projection is substantially square. The device with a directional microphone may further include an omnidirectional microphone. The microphone housing further includes a first storage space and a second storage space. The first storage space is connected to the first sound channel and the second sound. The 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 in the second storage space. The microphone housing may further include a first portion and a second portion. The first portion includes a first cassette and a second cassette. The first cassette and the second cassette are different in size, and the second portion is different. The first bore includes a first bore and the second bore receives a first latch, and the second bore receives a second latch. Alternatively, the microphone housing may further include a first portion and a second portion, the first portion includes a first opening, the second portion includes a second opening, and the first opening and the second opening constitute a first A storage space for accommodating a directional microphone. Alternatively, the apparatus of the present invention having a directional microphone may further include

Client's Docket No.: for06-0031 TT's Docket No: 0958-A41096-TW/Final/Shen Yizong / 1355206 An omnidirectional microphone, wherein the first part further includes a fourth opening, and the third opening is a The opening, the second storage space for accommodating the omnidirectional microphone I (five) opening constitutes a singular m wind, and further includes an electric rim, the microphone housing further includes a ϋ position and a d part, the first and the second groove The second portion of the groove includes a second groove, and the first groove is formed into a passage for the power supply line to pass. Since the extending direction of the first sound channel is substantially parallel to the front surface of the directional microphone, the distance traveled by the sound in the microphone housing can be minimized, so that the directional microphone is built into the device. Outer & 'but still has good performance' and the volume of the microphone housing can be minimized. The above described objects, features, and advantages of the present invention will be more apparent from the description of the preferred embodiments. [Embodiment] The present invention provides a device with a directional microphone built in. The device can be a notebook computer (N〇teb〇〇k Computer) shown in FIG. 1A and a liquid crystal display device shown in FIG. 1B ( Liquid Crystal Display (LCD), the GPS receiver (Gi〇bai Positioning System Receiver, GPS Receiver) or the Personal Digital Assistant (PDA) shown in Figure 1C, the network camera shown in the ID diagram (Web Camera), earphone (Earphone) shown in IE, Cellular Phone shown in figure i, car (Car) shown in Fig. 1G, phone microphone shown in Fig. 1H (Speakerphone) ),or

Client's Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 8 I355206 4 · - Various other devices. The direction of the directional microphone 1 图 in the figure is indicated by an arrow. 2A through 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 milk on the rain surface, and a plurality of shock ribs 222 are disposed on the top surface, the side surface, and the rear surface, and a microphone socket 221 (Fig. 2D) is disposed on the bottom surface. The first side of the microphone holder 221 is provided with a first groove 224 and a second side 224 225. The microphone housing 221 has a storage space 2211' for accommodating a directional microphone. A sound inlet 2261 is provided in front of the first portion 22, and airtight surrounds the sound entrance 2261 every 223. 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, and a plurality of shock ribs 242 are disposed on the bottom surface, the side surface, and the rear surface, and a receiving space 2411 is provided on the top surface (Fig. 2D). A first bore 244 and a second bore 245 are respectively disposed on opposite sides of the receiving space 2411 , 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 assembled, the directional microphone 10 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 1355206 In the storage space 2211, the microphone holder 221 of the first portion 22 is then placed in the second portion 24 In the space 2411, the first latch 224 is placed in the first bore 244, and the second latch 225 is placed in the second bore 245. At this time, the first groove 2241 and the second groove 2441 form a channel. 29 (Fig. 2C), the electric wire 101 for the directional microphone 10 passes (Fig. 2G). Referring to FIG. 2H and FIG. 21 at the same time, the assembled microphone housing 20 is then placed in the outer casing 42 of a device and then covered with a cover 31. The outer casing 42 has an opening 45 for exposing the sound inlet 2261 of the microphone housing 20 and 2461. The inner surface of the outer casing 42 is further provided with a groove 46 for accommodating the shock absorbing rib 242 on the bottom surface of the second portion 24. However, it can be appreciated that the groove 46 does not have to be present. If the groove 46 is not provided, the outer casing 42 has a smooth 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 inner surface of the outer casing 42, thereby preventing a gap from being generated in the contact portion and causing sound leakage. The shock absorbing ribs 222 and 242 provided on the outer surface of the microphone casing serve to prevent the external shock from being transmitted to the directional microphone 10 inside thereof, providing protection. In operation, the front surface of the directional microphone 10 can receive external sound via the sound inlet 2261 and the first sound channel 226, while the rear surface of the directional microphone 10 can receive the outside via the sound inlet 2461 and the second sound channel 246. The sound, since the extending direction of the first sound channel 226 is substantially parallel to the front surface of the directional microphone 10, minimizes the distance that the sound travels within the microphone housing 20, thus, although the directional microphone 10 is Built into the outer casing 42 of the device, but still

Client's Docket No.: for06-0031 TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong / 10 to 5206 has good performance' and the volume of the microphone 2G 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 cassette 224 is loaded into the second bore 245, and the second cassette 225 is loaded into the first bore 244. 3A and 3B show another embodiment of the present invention, and 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 housing 20 has circular airtight projections 34 and 36 which are respectively received in the circular openings 321 and 322. Prevent gaps in the joints and cause 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 (s >

Client's Docket No.: for06-0031 TT, s Docket No: 0958-A41096-TW/Final/Shen Yizong/11 1355206 - The same elements as those of the embodiment just described will be given the same reference numerals. In this embodiment, the microphone housing 20 has substantially square airtight projections 54 and 56' corresponding to the square opening of the housing 52, which prevents the gap from being generated and causes 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 56 also has a through hole 561' which communicates with the aforementioned sound inlet 2461 to allow the external φ 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 64 are originally It is a one-piece structure. When assembling, the first portion 62 and the second portion 64 are first cut along the 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 correspondingly inserted into the second portion. In the clamping hole 646 of 64, the positioning pin 645 φ of the second portion 64 is simultaneously 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 641 of the second portion 64 constitute a first storage space 66' for accommodating a directional microphone (not shown). The first portion 62 has a passage 623 through which the wires of the directional microphone pass. Referring to FIG. 6E', on the other hand, the third opening 622 of the first portion 62 and the fourth opening 642 of the second portion 64 constitute a second storage station 67' for an omnidirectional microphone. (not shown), and the first trench 624 of the first portion 62 and the second trench 644 of the second portion 64

Client's Docket No.: for06-0031

TT’s Docket No: 0958-A41096-TW/Final/Shen Yizong/ 12 1355206 In another channel 61, the wires for this omnidirectional microphone pass. In this embodiment, when the directional microphone is incorporated into the microphone housing, the direction in which the first sound channel 626 extends will be substantially parallel to the front surface of the directional microphone, and the direction in which the second sound channel 646 extends. Will be an acute angle with the posterior surface of the directional microphone. In operation, the directional microphones in the first storage space 66 and the omnidirectional microphones in the second storage space 67 will collectively form a microphone array. 7A and 7B illustrate another embodiment of the present invention, wherein the microphone housing includes a first portion 72, a second portion 74, a first sound channel 726, a second sound channel 746, and a first Storage space and a second storage space. The first sound channel 726 is disposed in the first portion 72, and the second sound channel 746 is disposed in the second portion 74. The first storage space is coupled between the first sound channel 726 and the second sound channel 746 for A directional microphone 10 is housed, and a second storage space is coupled to the first sound channel 726 for receiving 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 10, 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 form a microphone array, and in operation, the directional microphone 10 can pass through the first sound channel 726 and the second sound channel 746 While receiving the sound of the outside world, the omnidirectional microphone 12 receives the sound of the outside world 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.: for06-0031 TT's Docket No:0958-A41096-TW/Fmal/Shen Yizong / 1355206 ^The distance from the front surface of the directional microphone 10 is minimized, &+ +吏5 in the microphone housing Inside;; 10 wish to 'in this embodiment = _ directional microphone,. The following table: the extension of the large-by: This is different from the embodiment shown in the previous 2G diagram. Not parallel), this private: However, the invention has been replenished as above, ^廿=明, Ren Jianguan technical money ^ face is used to limit the spirit and scope of the invention, when the identifiable person, without the protection of this The scope is regarded as the %, the change and the Runfu in the attached, so the invention [simple outline] ^Lifan_definition shall prevail. From the 1st chart to the 1st Η Ε Ε Ε Ε ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Fig. 2第图| Α _ is an exploded view of the wind shell from different angles; body diagram; the 2D figure of the microphone housing of the figure is the 2nd figure of the 2nd figure of the 2nd figure of the 2nd figure Explosion diagram of the hurricane adult; ®; the first part of the hood

Figure 2; Figure 2F is the second part of the microphone housing:

Client's Docket No.: for06-0031 TT’s Docket No:0958-A41096-TW/Final/Shen Kuozong / 14

Claims (1)

1355206 Case No. 096150502 Revised on August 19, 100, Ben Yizheng Replacement Page 10, Patent Application Range: 1. A device with a directional microphone built in, comprising: a microphone housing, including a gas-tight protrusion, a first a sound channel and a second sound channel, wherein the airtight protrusion has a through hole communicating with the first sound channel; a directional microphone disposed in the microphone housing, including a first surface and a 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 first surface of the directional microphone; An outer casing is disposed in the outer casing, wherein the outer casing has an opening, and the airtight protrusion is disposed in the opening. 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 of 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 absorber for06-0031/095 8-A41096-Ding W/Finall 18 1355206 άΙΛΜΜ a rib, the shock absorbing rib is disposed on the outer surface. 7. The device as claimed in claim 1, wherein the microphone housing further comprises an airtight ring, the airtight ring contacting the outer casing and surrounding the sound of the first sound channel. Entrance. 8. The device of claim 7, further comprising a venting cover for covering the sound of the first sound channel into the σ ° 9. As claimed in claim 1 The device has a directional microphone built therein, wherein the microphone housing further includes an airtight ring that contacts the outer casing and surrounds the sound inlet of the second sound channel. 10. The device of claim 9, further comprising a venting cover covering the sound inlet of the second sound channel. 11. A device incorporating a directional microphone as described in claim 1 wherein the airtight projection is substantially circular. 12. The device of claim 1, wherein the airtight projection is substantially square. 13. The device as claimed in claim 1, wherein the microphone housing further comprises a further airtight protrusion, the another airtight protrusion having a through hole, the other airtight protrusion The through hole of the portion is connected to the second sound passage, the outer casing has a further opening, and the other airtight protrusion is disposed in the opening. 14. The device of claim 13, wherein the airtight projection is substantially circular. For 06-0031/0958-Α41096-TW/Finall 19 1355206 ! ! 修 修 修 修 修 修 修 修 修 修 修 修 修 修 修 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 . 16. 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. 17. 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 a second cassette, the first cassette and the second cassette are different in size, and the second portion includes a first pupil and a second aperture, the first aperture receiving the first cassette, the first aperture The second bore accommodates the second cassette. 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 opening, The second portion includes a second opening, and the first opening and the second opening constitute a first storage space for accommodating the directional microphone. 19. The device as claimed in claim 18, further comprising an omnidirectional microphone, wherein the first portion further comprises a third opening, the second portion further comprising a The fourth opening, the third opening and the fourth opening constitute a second storage space for accommodating the omnidirectional microphone. 20. The device of claim i, wherein the directional microphone is more powerfully constructed with a directional microphone and further includes a -part-and _th & a wire, the microphone housing-groove' the second portion includes a second groove-like portion, the first portion includes a second groove-forming channel for the electrical groove and the 21. There is a purpose-oriented microphone set, two shells; including: Li, " Mai ^ body 'set in the shell 'including - airtight ring, - first - sound 曰 1 ^ to * first - sound through 'The airtight ring is in contact with the outer casing, and the sound inlet of the sound channel of the younger brother is turned; and a directional microphone is disposed on the ram shell, including - the second surface: the 乂 and the second surface The external sound is difficult to reach the first sound path and the first sonar channel reaching the first surface and the second surface, wherein the first sound channel is substantially parallel to the first surface of the directional microphone. 22. The device with built-in directional microphone according to claim 21, wherein the microphone housing further comprises a further airtight ring, the other airtight ring contacting the peripheral device and surrounding the second sound channel Sound entrance. For06-003 l/0958-A41096-TW/Finall 21