WO2011051810A2 - System and method for mechanically reducing unwanted wind noise in an electronics device - Google Patents
System and method for mechanically reducing unwanted wind noise in an electronics device Download PDFInfo
- Publication number
- WO2011051810A2 WO2011051810A2 PCT/IB2010/002982 IB2010002982W WO2011051810A2 WO 2011051810 A2 WO2011051810 A2 WO 2011051810A2 IB 2010002982 W IB2010002982 W IB 2010002982W WO 2011051810 A2 WO2011051810 A2 WO 2011051810A2
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- WIPO (PCT)
- Prior art keywords
- headset
- microphone
- noise
- microphones
- wind
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/62—Constructional arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
- H04R1/086—Protective screens, e.g. all weather or wind screens
Definitions
- the invention is generally related to telecommunications, audio headsets, speakers, and other communications and electronic devices, such as mobile telephones, computers, personal digital assistants, geographical positioning system (gps) devices, cameras and video cameras, and is particularly related to systems and methods for mechanically reducing microphone noise in such a device, and headset protectors for use with such devices.
- gps geographical positioning system
- headsets and earpieces are often quite expensive, and yet are prone to being placed in pockets, bags, and glove compartments, with coins, keys and other objects, where they can be easily scuffed or damaged. Additionally, such headsets and earpieces are typically quite small, and often appear similar to one another, which can lead to confusion among devices, and users mistaking their device for that of another's.
- a telecommunications or other electronic device such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like, comprises a housing which includes one or more openings or ports for use with one or more microphones.
- a portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical noise reduction, particularly of wind noise.
- the noise reducing combination can be overlaid over the microphone and over the housing, as an add-on module; or can be overlaid over the microphone and beneath the housing, as a manufactured or OEM-supplied feature.
- a headset housing includes one or more openings or ports for use with one or more, microphones.
- a portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical and/or pattern-based noise reduction, particularly of wind noise.
- the voice microphone can be held in place within a microphone mounting boot which allows sound to impinge the microphone in a configured pattern.
- a headset protector for use with telecommunications devices such as mobile telephone headsets and earpieces.
- the headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and include openings for microphones, buttons, or other features of the headset.
- the headset protector or cover can be made of a waterproof or splash-resistant material.
- the headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns.
- Figure 1 shows an illustration of an example device, such as a headset, that can utilize mechanical noise reduction, in accordance with an embodiment.
- Figure 2 shows a cross-section illustration of an external mounted noise reducing combination, in accordance with an embodiment.
- Figure 3 shows a cross-section illustration of an internally mounted noise reducing combination, in accordance with an embodiment.
- Figure 4 shows an illustration of a camera that includes a mechanical noise reducing combination, in accordance with an embodiment.
- Figure 5 shows an illustration of a gps device that includes a mechanical noise reducing combination, in accordance with an embodiment.
- Figure 6 shows an illustration of an example device that can utilize both mechanical and/or microphone pattern-based noise reduction, in accordance with an embodiment.
- Figure 7 shows an illustration of a headset as it may be used by a person, in accordance with an embodiment.
- Figure 8 shows an illustration of a headset that includes noise reduction, in accordance with an embodiment.
- Figure 9 shows an illustration of a microphone mounting boot, in accordance with an embodiment.
- Figure 10 shows an illustration of an alternate microphone mounting boot, in accordance with an embodiment.
- Figure 11 shows an illustration of a headset as it may be used by a person, and including a headset microphone pattern, in accordance with an embodiment.
- Figure 12 shows an illustration of a headset that includes both mechanical and pattern-based noise reduction, in accordance with an embodiment.
- Figure 13 shows an illustration of a headset protector or cover being used with a headset, in accordance with an embodiment.
- Figure 14 shows an illustration of different views of a headset and headset protector or cover, in accordance with an embodiment.
- a telecommunications or other electronic device such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like, comprises a housing which includes one or more openings or ports for use with one or more microphones.
- a portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical noise reduction, particularly of wind noise.
- the noise reducing combination can be overlaid over the microphone and over the housing, as an add-on module; or can be overlaid over the microphone and beneath the housing, as a manufactured or OEM-supplied feature.
- Figure 1 shows an illustration of an example device, such as a headset, that can utilize mechanical noise reduction, in accordance with an embodiment.
- a grill/felt/grill combination including one or more metal or plastic grills and a sound-reducing felt material can be used to mechanically reduce unwanted noise.
- the device such as a headset, camera, gps or other electronic device 102 comprises a housing 120, which includes one or more openings or ports 124, and microphones 128 therein.
- the microphones can be held in place within a microphone mounting boot and/or connected to a noise cancellation logic/circuit, such as which can be provided as a printed circuit board (PCB), and which in turn is powered by an internal battery, as described in further detail below.
- a noise cancellation logic/circuit such as which can be provided as a printed circuit board (PCB), and which in turn is powered by an internal battery, as described in further detail below.
- the portion of the housing which contains the microphone port is overlaid with a grill/felt/grill noise reducing combination 130, including one or more metal or plastic grills 132, 136 and a sound- reducing felt material 134, which together provides mechanical noise reduction.
- the lower grill is approximately 5mm in thickness; and the upper grill is approximately 3mm in thickness.
- the noise reducing combination can be mounted to, or formed as part of the device, to provide a device with the noise reducing combination 140.
- Figure 2 shows a cross-section illustration of an external mounted noise reducing combination, in accordance with an embodiment.
- the noise reducing combination 130 of grill and felt layers can be mounted to the housing 120, over the microphone 128, much as an add-on or after-market module, to provide a device with the noise reducing combination 140.
- Figure 3 shows a cross-section illustration of an internally mounted noise reducing combination, in accordance with an embodiment.
- the noise reducing combination 130 of grill and felt layers can be mounted within the housing 120, over the microphone 128, to provide a device with the noise reducing combination 150 built-in.
- Figure 4 shows an illustration of a camera 150 that includes a mechanical noise reducing combination 130, in accordance with an embodiment
- Figure 5 shows an illustration of a gps device 160 that includes a mechanical noise reducing combination 130, in accordance with an embodiment.
- the feature can be included in any telecommunications or other electronic device, such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like.
- gps geographical positioning system
- a headset housing includes one or more openings or ports for use with one or more, microphones.
- a portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical and/or pattern-based noise reduction, particularly of wind noise.
- the voice microphone can be held in place within a microphone mounting boot which allows sound to impinge the microphone in a configured pattern.
- the system includes one or more of:
- a microphone sound-receiving pattern such as a cardioid, hypercardioid, supercardioid, or other custom pattern, that enables a distinction between desired voice input, and non-desired noise input, and which can be provided using a pattern- generating microphone boot.
- FIG. 6 shows an illustration of an example device that can utilize both mechanical and/or microphone pattern-based noise reduction, in accordance with an embodiment.
- the device shown in Figure 6 is a telecommunications headset device, such as a Bluetooth-enabled headset that might be used with a mobile telephone.
- some or all of the features disclosed herein can be similarly used or implemented within other communications devices, such as mobile telephones, personal digital assistants, speakerphones, and in-car speakers.
- the headset 202 typically includes an earpiece and/or speaker assembly 204 that can be placed near or in the user's ear, and which allows the user to listen to the headset.
- the headset typically also includes an ear hook 206 or other means for securing the headset to the user's ear.
- Other communications devices can include similar features.
- Figure 7 shows an illustration of a headset 202 as it may be used by a person 208, in accordance with an embodiment.
- the headset maximizes the vocal input spoken by the user, while at the same time minimizing extraneous noise effects, such as wind, background traffic, or other unwanted noise.
- Figure 7 shows an ear-mounted headset supported on the right-side ear of the person. In such a position, the person's head, torso, and pinna (the outer portion) of their ear provides reasonably good protection from unwanted noise originating at the user's left side. However, the headset is still very susceptible to unwanted noise originating at the person's right side.
- an important area of desirable noise cancellation 212 is to the front-right of the person. It will be evident that, if the headset device is instead worn on the opposite ear, then the area of desirable noise cancellation would be reversed. Different communications devices may have different areas of desirable noise cancellation, depending on their structure and their positioning with respect to the person.
- FIG. 8 shows an illustration of a headset that includes noise reduction, in accordance with an embodiment.
- the headset 202 includes an earpiece 204 that includes a speaker assembly, and a housing 220, which may be formed in several parts that fit together.
- the housing includes at least two openings, illustrated here as a front port 222 relatively closer to the mouth of the person, and a rear port 224 located a few millimeters further back, each of which ports allow sound input to enter the device.
- Two microphones are provided within the housing, including a voice microphone 226 generally located in the area of the first port, and a noise receiving microphone 228 generally located in the area of the rear port.
- each microphone is capable of receiving both vocal input and unwanted noise input, the above are mostly labels for purposes of illustration.
- the voice microphone can use inputs received both from the front port and the rear port, which can then be subtracted or otherwise processed to provide a measure of the input noise.
- additional ports and/or microphones can be provided; and the voice microphone and noise microphones can be a combination of uni-directional and/or omni-directional.
- the voice microphone is held in place within a microphone mounting boot 230, which allows sound to impinge the microphone in a configured pattern, and which is described in further detail below.
- the portion of the housing which contains the front and rear port, together with the ports themselves, is overlaid with a combination of a metal or plastic grill and a sound-reducing felt or other material, which together provides mechanical noise reduction.
- a lower grill 232, a felt layer 234, and an upper grill 236 is layered over the ports. The grills act to reduce the turbulent effect of wind hitting the microphone, while the felt acts to reduce the velocity of wind hitting the microphone.
- the microphones are each connected to a noise cancellation logic/circuit 240, which uses the input from the microphones to best reduce the unwanted noise.
- FIG 9 shows an illustration of a microphone mounting boot 250, in accordance with an embodiment.
- the voice microphone is held in place within the housing using the microphone mounting boot, which can be made of a rubber, plastic or other vibration- and sound-dampening material, and both retains and substantially surrounds the voice microphone.
- a hollow channel 252 is provided within the boot, which allows sound to impinge the microphone in a configured pattern.
- the channel 252 can be angled in a particular direction, or have a particular length or width, to effect the sound receiving pattern.
- the boot further includes an electrical wire or other connection 254 to the noise cancellation logic/circuit.
- Figure 10 shows an illustration of an alternate microphone mounting boot 156, which illustrates the channel 258 angled in a different direction, and which results in a different microphone sound receiving pattern.
- the boot including the channel angle and dimensions, can be configured to create a customized sound receiving pattern, such as a cardioid, hypercardioid, supercardioid, or other custom sound receiving pattern at the headset.
- Pattern stability is important for consistent response in the headset.
- a pure cardioid pattern is less stable, and provides less stability when used in a headset.
- a pure bidirectional pattern, hypercardioid pattern, or supercardioid pattern can be used for greater stability.
- the sound receiving pattern can be customized by changing the parameters of the boot (such as the channel angle, dimensions, or other parameters) to best suit the particular requirements of that construction. Different implementations and constructions, with different requirements, may benefit from a different sound receiving pattern, which in turn can be provided by selecting different boot parameters..
- Figure 11 shows an illustration of a headset 202 as it may be used by a person 208, and including a headset microphone pattern, in accordance with an embodiment.
- Figure 11 again shows an ear-mounted headset supported on the right-side ear of the person.
- an important area of desirable noise cancellation is to the front-right of the person.
- the boot is configured to create a customized sound receiving pattern 280, such as a hypercardioid sound receiving pattern or other pattern that particularly targets the vocal input, and separates the noise in the area of desirable noise cancellation.
- FIG 12 shows an illustration of a headset that includes both mechanical and pattern-based noise reduction, in accordance with an embodiment.
- a grill/felt/grill combination including one or more metal or plastic grills and a sound-reducing felt material can be used to mechanically reduce unwanted noise.
- the headset 300 includes a lower housing 302 and an upper housing, which fit together, and an earpiece 306 that includes a speaker assembly.
- the housing includes at least two openings or ports (not illustrated) in the upper housing.
- Two microphones are provided within the housing, including a voice microphone 308 generally located in the area of the first port, and a noise receiving microphone 310 generally located in the area of the rear port.
- the voice microphone is held in place within a microphone mounting boot, described previously.
- the microphones are each connected to a noise cancellation logic/circuit 312, which can be provided as a printed circuit board (PCB), and which in turn is powered by an internal battery 314.
- the portion of the housing which contains the front and rear port is overlaid with a grill/felt/grill combination 320, including one or more metal or plastic grills 322, 324 and a sound-reducing felt material 326, which together provides mechanical noise reduction.
- the lower grill 322 is approximately 5mm in thickness; and the upper grill 324 is approximately 3mm in thickness. Different implementations and constructions, with different requirements, may benefit from different arrangements, materials, and thicknesses of the grills and/or the sound-reducing materials.
- a headset protector for use with telecommunications devices such as mobile telephone headsets and earpieces.
- the headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and include openings for microphones, buttons, or other features of the headset.
- the headset protector or cover can be made of a waterproof or splash-resistant material.
- the headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns.
- Figure 13 shows an illustration of a headset protector or cover being used with a headset, in accordance with an embodiment.
- the device shown in Figure 13 is a telecommunications headset device, such as a Bluetooth-enabled headset that might be used with a mobile telephone.
- a telecommunications headset device such as a Bluetooth-enabled headset that might be used with a mobile telephone.
- some or all of the features disclosed herein can be similarly used or implemented within other communications devices, such as different types of headset or wireless earpiece.
- the headset 402 typically includes an earpiece and/or speaker assembly that can be placed near or in the user's ear, and which allows the user to listen to the headset.
- the headset typically also includes an ear hook or other means for securing the headset to the user's ear.
- Other communications devices can include similar features.
- a headset protector or cover 404 is provided as a housing which is generally sized and shaped to fit around the headset, earpiece, or telecommunications device, and which provides protection from knocks or scuffs, such as if the user drops the headset.
- the headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and can be optionally removed from, and replaced onto the telecommunications device.
- the headset protector or cover can include openings 406, 408 positioned appropriately for microphones, buttons, or other features of the headset, to allow these features to be accessed without removing the headset from its cover.
- the headset protector or cover can be made of a waterproof or splash-resistant material, and when placed on the headset 410 can include appropriate plugs to protect otherwise-exposed connectors on the headset against intrusion from dust or liquids.
- the headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns, to help distinguish one person's headset from another's, or as a fashion statement.
- Figure 14 shows an illustration of different views of a headset and headset protector or cover, in accordance with an embodiment. As shown in Figure 14, when used without a cover, the headset alone 402 is exposed on its front, side, and rear, which can lead to damage both from accidental knocks, and from intrusion of dust or liquids.
- the headset is somewhat protected from accidental damage, while the openings in the protector or cover still allow the headset to be worn, and its microphones, buttons, or other features to be accessed without removing the protector or cover.
- Figure 14 also illustrates an alternate cover design 414, which includes a different arrangement of microphone openings 416. It will be evident that different shapes, designs, and numbers and positions of openings can be provided to suit different types of headset, earpiece, or telecommunications device, in accordance with other embodiments.
- Some aspects of the present invention may be conveniently implemented using one or more conventional general purpose or specialized digital computer, computing device, machine, microprocessor, or electronic circuits, including one or more processors, memory and/or computer readable storage media programmed according to the teachings of the present disclosure.
- Appropriate software coding can readily be prepared by skilled programmers based on the teachings of the present disclosure, as will be apparent to those skilled in the software art.
- the present invention includes a computer program product which is a storage medium or computer readable medium (media) having instructions stored thereon/in which can be used to program a computer to perform any of the processes of the present invention.
- the storage medium can include, but is not limited to, any type of disk including floppy disks, optical discs, DVD, CD -ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
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Abstract
A system and method for mechanically reducing unwanted wind, audio, and other noise in a telecommunications or other electronic device. In accordance with an embodiment, a telecommunications or other electronic device, such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like, comprises a housing which includes one or more openings or ports for use with one or more microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical noise reduction, particularly of wind noise. In accordance with an embodiment, a headset housing includes one or more openings or ports for use with one or more, microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. In accordance with some embodiments the voice microphone can be held in place within a microphone mounting boot which allows sound to impinge the microphone in a configured pattern. In accordance with an embodiment, a headset protector is described for use with telecommunications devices such as mobile telephone headsets and earpieces. The headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and include openings for microphones, buttons, or other features of the headset.
Description
SYSTEM AND METHOD FOR MECHANICALLY REDUCING UNWANTED
WIND NOISE IN AN ELECTRONICS DEVICE
Inventors: Taisen Maddern
Adrian Tan
COPYRIGHT NOTICE
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. Claim of Priority:
[0001] This application claims the benefit of priority to U.S. Patent Application No.
12/829,233 titled "SYSTEM AND METHOD FOR MECHANICALLY REDUCING UNWANTED WIND NOISE IN A TELECOMMUNICATIONS HEADSET DEVICE", filed July 1, 2010; which claims the benefit of priority to U.S. Provisional Patent Application No. 61/257,371 titled "SYSTEM AND METHOD FOR MECHANICALLY REDUCING UNWANTED WIND NOISE IN A TELECOMMUNICATIONS HEADSET DEVICE", filed November 2, 2009; U.S. Patent Application No. 12/829,266 titled "SYSTEM AND METHOD FOR MECHANICALLY REDUCING UNWANTED WIND NOISE IN AN ELECTRONICS DEVICE", filed July 1, 2010; which claims the benefit of priority to U.S. Provisional Patent Application No. 61/314,963 titled "SYSTEM AND METHOD FOR MECHANICALLY REDUCING UNWANTED WIND NOISE IN AN ELECTRONICS DEVICE", filed March 17, 2010; and U.S. Patent Application No. 12/829,227 titled "HEADSET PROTECTOR FOR USE WITH TELECOMMUNICATIONS DEVICE", filed July 1, 2010; which claims the benefit of priority to U.S. Provisional Patent Application No. 61/314,962 titled "HEADSET PROTECTOR FOR USE WITH TELECOMMUNICATIONS DEVICE", filed March 17, 2010, each of which applications are incorporated by reference herein.
Field of Invention:
[0002] The invention is generally related to telecommunications, audio headsets, speakers, and other communications and electronic devices, such as mobile telephones, computers, personal digital assistants, geographical positioning system (gps) devices, cameras and video cameras, and is particularly related to systems and methods for mechanically reducing microphone noise in such a device, and headset protectors for use with such devices.
Background:
[0003] The use of telecommunications and other electronic devices, particularly mobile telephones, computers, personal digital assistants, geographical positioning system (gps) devices,
cameras, video cameras and the like, continues to become widespread, and both business and casual users alike commonly have one or more, and in some instances several such devices. Such devices are no longer confined to people's homes and businesses, but are commonly used in other environments, such as while driving, in the park, or at sporting and other entertainment events. However, one of the commonly encountered problems, say while using a device outdoors, is that the user's voice may not be properly heard. For example, while talking to an gps device that allows voice input, such as a vehicle or motorbike -mounted gps, the user's voice may not be heard over exterior wind noise, such that the device cannot be operated properly. Similarly, a person using a mobile phone outdoors may not be well heard by a person at the other end. This is particularly pertinent in headset and other small devices, since such devices are generally small enough to be mounted on a person's ear, which necessarily places the microphone quite far from the person's mouth, and in such a position that it is exposed to wind and other noise. Additionally, in some regions, laws have recently been passed that outlaw the use of mobile telephone devices while driving unless the driver is using a hands-free headset or earpiece, to improve highway safety. As such, it is likely that the popularity of such devices will continue to increase. An aspect of such devices that is often overlooked is that such headsets and earpieces are often quite expensive, and yet are prone to being placed in pockets, bags, and glove compartments, with coins, keys and other objects, where they can be easily scuffed or damaged. Additionally, such headsets and earpieces are typically quite small, and often appear similar to one another, which can lead to confusion among devices, and users mistaking their device for that of another's. These are the general areas that embodiments of the present invention are intended to address.
Summary:
[0004] Described herein is a system and method for mechanically reducing unwanted wind, audio, and other noise in a telecommunications or other electronic device. In accordance with an embodiment, a telecommunications or other electronic device, such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like, comprises a housing which includes one or more openings or ports for use with one or more microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical noise reduction, particularly of wind noise. In accordance with different embodiments, the noise reducing combination can be overlaid over the microphone and over the housing, as an add-on module; or can be overlaid over the microphone and beneath the housing, as a manufactured or OEM-supplied feature.
[0005] In accordance with an embodiment, a headset housing includes one or more openings or ports for use with one or more, microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other
material. Used separately or with other features, this provides for mechanical and/or pattern-based noise reduction, particularly of wind noise. In accordance with some embodiments the voice microphone can be held in place within a microphone mounting boot which allows sound to impinge the microphone in a configured pattern.
[0006] In accordance with an embodiment, also described herein is a headset protector for use with telecommunications devices such as mobile telephone headsets and earpieces. The headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and include openings for microphones, buttons, or other features of the headset. In accordance with an embodiment, the headset protector or cover can be made of a waterproof or splash-resistant material. The headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns.
Brief Description of the Drawings:
[0007] Figure 1 shows an illustration of an example device, such as a headset, that can utilize mechanical noise reduction, in accordance with an embodiment.
[0008] Figure 2 shows a cross-section illustration of an external mounted noise reducing combination, in accordance with an embodiment.
[0009] Figure 3 shows a cross-section illustration of an internally mounted noise reducing combination, in accordance with an embodiment.
[0010] Figure 4 shows an illustration of a camera that includes a mechanical noise reducing combination, in accordance with an embodiment.
[0011] Figure 5 shows an illustration of a gps device that includes a mechanical noise reducing combination, in accordance with an embodiment.
[0012] Figure 6 shows an illustration of an example device that can utilize both mechanical and/or microphone pattern-based noise reduction, in accordance with an embodiment.
[0013] Figure 7 shows an illustration of a headset as it may be used by a person, in accordance with an embodiment.
[0014] Figure 8 shows an illustration of a headset that includes noise reduction, in accordance with an embodiment.
[0015] Figure 9 shows an illustration of a microphone mounting boot, in accordance with an embodiment.
[0016] Figure 10 shows an illustration of an alternate microphone mounting boot, in accordance with an embodiment.
[0017] Figure 11 shows an illustration of a headset as it may be used by a person, and including a headset microphone pattern, in accordance with an embodiment.
[0018] Figure 12 shows an illustration of a headset that includes both mechanical and pattern-based noise reduction, in accordance with an embodiment.
[0019] Figure 13 shows an illustration of a headset protector or cover being used with a headset, in accordance with an embodiment.
[0020] Figure 14 shows an illustration of different views of a headset and headset protector or cover, in accordance with an embodiment.
Detailed Description:
[0021] Described herein is a system and method for mechanically reducing unwanted wind, audio, and other noise in a telecommunications headset or other device. In accordance with an embodiment, a telecommunications or other electronic device, such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like, comprises a housing which includes one or more openings or ports for use with one or more microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical noise reduction, particularly of wind noise. In accordance with different embodiments, the noise reducing combination can be overlaid over the microphone and over the housing, as an add-on module; or can be overlaid over the microphone and beneath the housing, as a manufactured or OEM-supplied feature.
MECHANICALLY REDUCING UNWANTED WIND NOISE IN AN ELECTRONICS DEVICE
[0022] Figure 1 shows an illustration of an example device, such as a headset, that can utilize mechanical noise reduction, in accordance with an embodiment. As shown in Figure 1, a grill/felt/grill combination, including one or more metal or plastic grills and a sound-reducing felt material can be used to mechanically reduce unwanted noise. In accordance with an embodiment, the device, such as a headset, camera, gps or other electronic device 102 comprises a housing 120, which includes one or more openings or ports 124, and microphones 128 therein. In accordance with an embodiment, the microphones can be held in place within a microphone mounting boot and/or connected to a noise cancellation logic/circuit, such as which can be provided as a printed circuit board (PCB), and which in turn is powered by an internal battery, as described in further detail below. The portion of the housing which contains the microphone port is overlaid with a grill/felt/grill noise reducing combination 130, including one or more metal or plastic grills 132, 136 and a sound- reducing felt material 134, which together provides mechanical noise reduction. In accordance with an embodiment, the lower grill is approximately 5mm in thickness; and the upper grill is approximately 3mm in thickness. Different implementations and constructions, with different requirements, may benefit from different arrangements, materials, and thicknesses of the grills and/or the sound-reducing materials. The noise reducing combination can be mounted to, or formed as part of the device, to provide a device with the noise reducing combination 140.
[0023] Figure 2 shows a cross-section illustration of an external mounted noise reducing
combination, in accordance with an embodiment. As shown in Figure 2, the noise reducing combination 130 of grill and felt layers can be mounted to the housing 120, over the microphone 128, much as an add-on or after-market module, to provide a device with the noise reducing combination 140.
[0024] Figure 3 shows a cross-section illustration of an internally mounted noise reducing combination, in accordance with an embodiment. As shown in Figure 3, in those implementations in which the feature is provided as a manufactured or OEM-supplied feature, the noise reducing combination 130 of grill and felt layers can be mounted within the housing 120, over the microphone 128, to provide a device with the noise reducing combination 150 built-in.
[0025] Figure 4 shows an illustration of a camera 150 that includes a mechanical noise reducing combination 130, in accordance with an embodiment; while Figure 5 shows an illustration of a gps device 160 that includes a mechanical noise reducing combination 130, in accordance with an embodiment. In accordance with other embodiments, the feature can be included in any telecommunications or other electronic device, such as a mobile telephone, computer, personal digital assistant, geographical positioning system (gps) device, camera, video camera and the like.
REDUCING UNWANTED WIND NOISE IN A TELECOMMUNICATIONS HEADSET DEVICE
[0026] In accordance with an embodiment, a headset housing includes one or more openings or ports for use with one or more, microphones. A portion of the housing which contains the ports is overlaid with a combination of one or more metal or plastic grills, and a sound-reducing felt or other material. Used separately or with other features, this provides for mechanical and/or pattern-based noise reduction, particularly of wind noise. In accordance with some embodiments the voice microphone can be held in place within a microphone mounting boot which allows sound to impinge the microphone in a configured pattern.. In accordance with an embodiment, the system includes one or more of:
Use of an arrangement or combination of two or more uni-directional and/or omnidirectional microphones, that are configured to best reduce or eliminate unwanted noise.
Use of a turbulence-breaking metal or plastic grill to reduce the effect of wind hitting the microphones.
Use of a wind-resistant felt or other material to reduce the velocity of wind hitting the microphones.
Use of a microphone sound-receiving pattern, such as a cardioid, hypercardioid, supercardioid, or other custom pattern, that enables a distinction between desired voice input, and non-desired noise input, and which can be provided using a pattern-
generating microphone boot.
[0027] Figure 6 shows an illustration of an example device that can utilize both mechanical and/or microphone pattern-based noise reduction, in accordance with an embodiment. For purposes of illustration, the device shown in Figure 6 is a telecommunications headset device, such as a Bluetooth-enabled headset that might be used with a mobile telephone. In accordance with various embodiments some or all of the features disclosed herein can be similarly used or implemented within other communications devices, such as mobile telephones, personal digital assistants, speakerphones, and in-car speakers. As shown in Figure 6, the headset 202 typically includes an earpiece and/or speaker assembly 204 that can be placed near or in the user's ear, and which allows the user to listen to the headset. The headset typically also includes an ear hook 206 or other means for securing the headset to the user's ear. Other communications devices can include similar features.
[0028] Figure 7 shows an illustration of a headset 202 as it may be used by a person 208, in accordance with an embodiment. During operation, it is desirable that the headset maximizes the vocal input spoken by the user, while at the same time minimizing extraneous noise effects, such as wind, background traffic, or other unwanted noise. Figure 7 shows an ear-mounted headset supported on the right-side ear of the person. In such a position, the person's head, torso, and pinna (the outer portion) of their ear provides reasonably good protection from unwanted noise originating at the user's left side. However, the headset is still very susceptible to unwanted noise originating at the person's right side. Since the headset must pick up spoken words from the front of the person, in the example shown in Figure 7 an important area of desirable noise cancellation 212 is to the front-right of the person. It will be evident that, if the headset device is instead worn on the opposite ear, then the area of desirable noise cancellation would be reversed. Different communications devices may have different areas of desirable noise cancellation, depending on their structure and their positioning with respect to the person.
[0029] Figure 8 shows an illustration of a headset that includes noise reduction, in accordance with an embodiment. As shown in Figure 8, the headset 202 includes an earpiece 204 that includes a speaker assembly, and a housing 220, which may be formed in several parts that fit together. In accordance with an embodiment, the housing includes at least two openings, illustrated here as a front port 222 relatively closer to the mouth of the person, and a rear port 224 located a few millimeters further back, each of which ports allow sound input to enter the device. Two microphones are provided within the housing, including a voice microphone 226 generally located in the area of the first port, and a noise receiving microphone 228 generally located in the area of the rear port. Since each microphone is capable of receiving both vocal input and unwanted noise input, the above are mostly labels for purposes of illustration. In particular, the voice microphone can use inputs received both from the front port and the rear port, which can then be subtracted or otherwise processed to provide a measure of the input noise. In accordance with various embodiments,
additional ports and/or microphones can be provided; and the voice microphone and noise microphones can be a combination of uni-directional and/or omni-directional.
[0030] In accordance with an embodiment, the voice microphone is held in place within a microphone mounting boot 230, which allows sound to impinge the microphone in a configured pattern, and which is described in further detail below.
[0031] In accordance with an embodiment, the portion of the housing which contains the front and rear port, together with the ports themselves, is overlaid with a combination of a metal or plastic grill and a sound-reducing felt or other material, which together provides mechanical noise reduction. In accordance with an embodiment, a lower grill 232, a felt layer 234, and an upper grill 236 is layered over the ports. The grills act to reduce the turbulent effect of wind hitting the microphone, while the felt acts to reduce the velocity of wind hitting the microphone.
[0032] In accordance with an embodiment, the microphones are each connected to a noise cancellation logic/circuit 240, which uses the input from the microphones to best reduce the unwanted noise.
[0033] Figure 9 shows an illustration of a microphone mounting boot 250, in accordance with an embodiment. As described above, in accordance with an embodiment, the voice microphone is held in place within the housing using the microphone mounting boot, which can be made of a rubber, plastic or other vibration- and sound-dampening material, and both retains and substantially surrounds the voice microphone. A hollow channel 252 is provided within the boot, which allows sound to impinge the microphone in a configured pattern. In particular, the channel 252 can be angled in a particular direction, or have a particular length or width, to effect the sound receiving pattern. The boot further includes an electrical wire or other connection 254 to the noise cancellation logic/circuit. Figure 10 shows an illustration of an alternate microphone mounting boot 156, which illustrates the channel 258 angled in a different direction, and which results in a different microphone sound receiving pattern.
[0034] In accordance with an embodiment, the boot, including the channel angle and dimensions, can be configured to create a customized sound receiving pattern, such as a cardioid, hypercardioid, supercardioid, or other custom sound receiving pattern at the headset. Pattern stability is important for consistent response in the headset. In some instances a pure cardioid pattern is less stable, and provides less stability when used in a headset. Instead, a pure bidirectional pattern, hypercardioid pattern, or supercardioid pattern can be used for greater stability. When used in a particular implementation such as a particular headset device construction, the sound receiving pattern can be customized by changing the parameters of the boot (such as the channel angle, dimensions, or other parameters) to best suit the particular requirements of that construction. Different implementations and constructions, with different requirements, may benefit from a different sound receiving pattern, which in turn can be provided by selecting different boot parameters..
[0035] Figure 11 shows an illustration of a headset 202 as it may be used by a person 208,
and including a headset microphone pattern, in accordance with an embodiment. Figure 11 again shows an ear-mounted headset supported on the right-side ear of the person. As described above, in such an example, an important area of desirable noise cancellation is to the front-right of the person. In accordance with an embodiment, the boot is configured to create a customized sound receiving pattern 280, such as a hypercardioid sound receiving pattern or other pattern that particularly targets the vocal input, and separates the noise in the area of desirable noise cancellation.
[0036] Figure 12 shows an illustration of a headset that includes both mechanical and pattern-based noise reduction, in accordance with an embodiment. As shown in Figure 12, a grill/felt/grill combination, including one or more metal or plastic grills and a sound-reducing felt material can be used to mechanically reduce unwanted noise. In accordance with an embodiment, the headset 300 includes a lower housing 302 and an upper housing, which fit together, and an earpiece 306 that includes a speaker assembly. The housing includes at least two openings or ports (not illustrated) in the upper housing. Two microphones are provided within the housing, including a voice microphone 308 generally located in the area of the first port, and a noise receiving microphone 310 generally located in the area of the rear port. In accordance with an embodiment, the voice microphone is held in place within a microphone mounting boot, described previously. The microphones are each connected to a noise cancellation logic/circuit 312, which can be provided as a printed circuit board (PCB), and which in turn is powered by an internal battery 314. The portion of the housing which contains the front and rear port is overlaid with a grill/felt/grill combination 320, including one or more metal or plastic grills 322, 324 and a sound-reducing felt material 326, which together provides mechanical noise reduction. In accordance with an embodiment, the lower grill 322 is approximately 5mm in thickness; and the upper grill 324 is approximately 3mm in thickness. Different implementations and constructions, with different requirements, may benefit from different arrangements, materials, and thicknesses of the grills and/or the sound-reducing materials.
HEADSET PROTECTOR FOR USE WITH TELECOMMUNICATIONS DEVICE
[0037] In accordance with an embodiment, also described herein is a headset protector for use with telecommunications devices such as mobile telephone headsets and earpieces. The headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and include openings for microphones, buttons, or other features of the headset. In accordance with an embodiment, the headset protector or cover can be made of a waterproof or splash-resistant material. The headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns.
[0038] Figure 13 shows an illustration of a headset protector or cover being used with a headset, in accordance with an embodiment. For purposes of illustration, the device shown in Figure 13 is a telecommunications headset device, such as a Bluetooth-enabled headset that might be used with a mobile telephone. In accordance with various embodiments some or all of the features
disclosed herein can be similarly used or implemented within other communications devices, such as different types of headset or wireless earpiece.
[0039] As shown in Figure 13, the headset 402 typically includes an earpiece and/or speaker assembly that can be placed near or in the user's ear, and which allows the user to listen to the headset. The headset typically also includes an ear hook or other means for securing the headset to the user's ear. Other communications devices can include similar features.
[0040] In accordance with an embodiment, a headset protector or cover 404 is provided as a housing which is generally sized and shaped to fit around the headset, earpiece, or telecommunications device, and which provides protection from knocks or scuffs, such as if the user drops the headset. The headset protector or cover can be formed of a plastic, rubber, neoprene, or other suitable material, and can be optionally removed from, and replaced onto the telecommunications device. The headset protector or cover can include openings 406, 408 positioned appropriately for microphones, buttons, or other features of the headset, to allow these features to be accessed without removing the headset from its cover.
[0041] In accordance with an embodiment, the headset protector or cover can be made of a waterproof or splash-resistant material, and when placed on the headset 410 can include appropriate plugs to protect otherwise-exposed connectors on the headset against intrusion from dust or liquids. The headset protector or cover can optionally include features such as a belt-clip, or can be made to include different exterior colors or patterns, to help distinguish one person's headset from another's, or as a fashion statement.
[0042] Figure 14 shows an illustration of different views of a headset and headset protector or cover, in accordance with an embodiment. As shown in Figure 14, when used without a cover, the headset alone 402 is exposed on its front, side, and rear, which can lead to damage both from accidental knocks, and from intrusion of dust or liquids.
[0043] When instead the headset is used with a protector or cover 410 in accordance with an embodiment, the headset is somewhat protected from accidental damage, while the openings in the protector or cover still allow the headset to be worn, and its microphones, buttons, or other features to be accessed without removing the protector or cover.
[0044] Figure 14 also illustrates an alternate cover design 414, which includes a different arrangement of microphone openings 416. It will be evident that different shapes, designs, and numbers and positions of openings can be provided to suit different types of headset, earpiece, or telecommunications device, in accordance with other embodiments.
[0045] The foregoing description of the present invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations will be apparent to the practitioner skilled in the art. The embodiments were chosen and described in order to best explain the principles
of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications that are suited to the particular use contemplated. For example, as described above, different implementations, with different requirements, may benefit from different arrangements, materials, and thicknesses of the grills and/or the sound-reducing materials. It is intended that the scope of the invention be defined by the following claims and their equivalence.
[0046] Some aspects of the present invention may be conveniently implemented using one or more conventional general purpose or specialized digital computer, computing device, machine, microprocessor, or electronic circuits, including one or more processors, memory and/or computer readable storage media programmed according to the teachings of the present disclosure. Appropriate software coding can readily be prepared by skilled programmers based on the teachings of the present disclosure, as will be apparent to those skilled in the software art.
[0047] In some embodiments, the present invention includes a computer program product which is a storage medium or computer readable medium (media) having instructions stored thereon/in which can be used to program a computer to perform any of the processes of the present invention. The storage medium can include, but is not limited to, any type of disk including floppy disks, optical discs, DVD, CD -ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
Claims
Claims:
What is claimed is: 1. A system for reducing noise in an electronic device, comprising:
a housing enclosing one or more microphones; and
a noise reducing combination over the one or more microphones, including one or more metal or plastic grills placed over the microphone, and a wind-resistant felt or other material placed between the microphone and the grills and/or between the one or more grills, to reduce the effect of wind hitting the microphones.
2. The system of claim 1, wherein the system includes two metal or plastic grills placed over the microphone, including a first grill placed nearest the microphone, covered with the wind-resistant felt or other material, and then a second grill covering the wind-resistant felt.
3. The system of claim 1, wherein the system is provided in a telecommunications, Bluetooth, or other headset.
4. The system of claim 1, wherein the system is provided in a speakerphone, or in-car speaker.
5. The system of claim 1, wherein the system is provided in one of a computer, personal digital assistant, geographical positioning system device, camera, video camera and the like.
6. A method for reducing noise in an electronic device, comprising:
providing a housing enclosing one or more microphones; and
providing a noise reducing combination over the one or microphones, including one or more metal or plastic grills placed over the microphone, and a wind-resistant felt or other material placed between the microphone and the grills and/or between the one or more grills, to reduce the effect of wind hitting the microphones.
7. The method of claim 6, wherein the system includes two metal or plastic grills placed over the microphone, including a first grill placed nearest the microphone, covered with the wind-resistant felt or other material, and then a second grill covering the wind-resistant felt.
8. The method of claim 6, wherein the system is provided in a telecommunications, Bluetooth, or other headset.
9. The method of claim 6, wherein the system is provided in a speakerphone, or in-car speaker.
10. The method of claim 6, wherein the system is provided in one of a computer, personal digital assistant, geographical positioning system device, camera, video camera and the like.
1 1. The system of claim 1 , wherein each of the one or more microphones is retained in a microphone boot that allows sound to impinge the microphone in a configured pattern, and wherein the pattern is configured to optimize reception of desired vocal input and reduce the reception of non- desired noise input;
the metal or plastic grill is placed over the microphone to reduce the effect of wind hitting the microphone; and
the wind-resistant felt or other material is placed between the microphone and the grill to reduce the velocity of wind hitting the microphones.
12. The system of claim 1 1, wherein the microphone boot is made of rubber, plastic, or another vibration- or sound-reducing material, and includes a hollow channel through which sound can impinge upon the microphone.
13. The system of claim 12, wherein the microphone boot and hollow channel is configured to allow sound to impinge the telecommunications device in a customized sound receiving pattern that suits the particular requirements of an implementation of the telecommunications device.
14. The system of claim 12, wherein the microphone boot and hollow channel is configured to allow sound to impinge the telecommunications device in a hypercardioid pattern, and includes distinct pattern areas for vocal input and for noise input.
15. A telecommunications headset which provides wind noise reduction, comprising:
an earpiece;
a housing that includes at least two openings or ports, each of which ports are covered by a combination of a grill or felt to reduce wind noise, including when the housing is placed in the ear of a user, a first port located closer to the mouth of the user, and a second port located further from the mouth of the user;
a plurality of microphones provided within the housing, including a voice microphone generally located in the area of the first port, and a noise receiving microphone generally located in the area of the second port, wherein the voice microphone is held in place within a microphone mounting boot that allows sound to impinge the microphone in a configured pattern, and wherein the pattern is configured to optimize reception of desired vocal input and reduce the reception of non- desired noise input.
16. A headset protector or cover for use with a telecommunications device such as a mobile telephone headset or earpiece, comprising:
a housing formed of a plastic, rubber, neoprene, or other suitable material, shaped to fit upon a telecommunications device such as a mobile telephone headset or earpiece, and including openings for microphones, buttons, or other features of the headset.
17. The headset protector or cover of claim 16, wherein the headset protector or cover can be optionally removed from, and replaced onto the telecommunications device.
18. The headset protector or cover of claim 16, wherein the headset protector or cover is made of a waterproof or splash-resistant material.
19. The headset protector or cover of claim 16, wherein the headset protector or cover includes a belt-clip
20. The headset protector or cover of claim 16, wherein the headset protector or cover can be made to include different exterior colors or patterns.
Applications Claiming Priority (12)
Application Number | Priority Date | Filing Date | Title |
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US25737109P | 2009-11-02 | 2009-11-02 | |
US61/257,371 | 2009-11-02 | ||
US31496210P | 2010-03-17 | 2010-03-17 | |
US31496310P | 2010-03-17 | 2010-03-17 | |
US61/314,962 | 2010-03-17 | ||
US61/314,963 | 2010-03-17 | ||
US12/829,227 | 2010-07-01 | ||
US12/829,266 US20110103634A1 (en) | 2009-11-02 | 2010-07-01 | System and method for mechanically reducing unwanted wind noise in an electronics device |
US12/829,233 | 2010-07-01 | ||
US12/829,227 US20110230242A1 (en) | 2010-03-17 | 2010-07-01 | Headset protector for use with telecommunications device |
US12/829,266 | 2010-07-01 | ||
US12/829,233 US8386266B2 (en) | 2010-07-01 | 2010-07-01 | Full-band scalable audio codec |
Publications (2)
Publication Number | Publication Date |
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WO2011051810A2 true WO2011051810A2 (en) | 2011-05-05 |
WO2011051810A3 WO2011051810A3 (en) | 2011-07-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2010/002982 WO2011051810A2 (en) | 2009-11-02 | 2010-11-01 | System and method for mechanically reducing unwanted wind noise in an electronics device |
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WO (1) | WO2011051810A2 (en) |
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GB2455300A (en) * | 2007-12-03 | 2009-06-10 | David Herman | Accurate ambient noise sensing and reduction of wind noise |
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US6785566B1 (en) * | 2002-02-04 | 2004-08-31 | Louis Irizarry | Cellular telephone case |
GB2446619A (en) * | 2007-02-16 | 2008-08-20 | Audiogravity Holdings Ltd | Reduction of wind noise in an omnidirectional microphone array |
GB2455300A (en) * | 2007-12-03 | 2009-06-10 | David Herman | Accurate ambient noise sensing and reduction of wind noise |
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US9319786B2 (en) | 2012-06-25 | 2016-04-19 | Lg Electronics Inc. | Microphone mounting structure of mobile terminal and using method thereof |
US9949005B2 (en) | 2015-06-18 | 2018-04-17 | Hand Held Products, Inc. | Customizable headset |
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Also Published As
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WO2011051810A3 (en) | 2011-07-14 |
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