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Matches 1 - 50 out of 1,313

Document Document Title
WO/2018/131435A1
According to the present invention, a vibration plate 11 and a vibration support sheet 12 that supports the vibration plate 11 are provided in an opening part 6 of a frame fixed inside a case. The vibration support sheet 12 has a vibrati...  
WO/2018/117370A1
The present invention relates to a speaker. A speaker according to the present invention comprises: a pair of permanent magnets arranged on open opposite sides of a solenoid coil having a rectangular box shape; and a first setting case a...  
WO/2018/106999A1
An acoustic receiver diaphragm includes a frame with an opening extending therethrough. A paddle is disposed in the opening, and a gap extends between portions of the paddle and the frame. A hinge connects the paddle to the frame. The hi...  
WO/2018/091889A1
The present invention provides for an electroacoustic driver for use within an explosion proof loudspeaker or sounder and comprising a housing enclosing a coil of an electromagnet, the coil operatively coupled to an electromagnet core, a...  
WO/2018/079113A1
According to the present invention, an armature 32has a fixed part 32a, an extending part 32b, a bent part 32c, and a movable part 32d. The moveable part 32d of the armature 32 is inserted into a coil 27 to face magnets 24, 25, and the f...  
WO/2018/075442A1
A pre-distorted electrical excitation signal is generated for an acoustic transducer having an armature and a non-linear transfer characteristic by applying an electrical input signal (x) representative of a desired acoustic output to a ...  
WO/2018/034016A1
[Problem] To provide a sound generation device having an armature inserted in a coil and facing a magnet, wherein a yoke is optimized, whereby it is possible to stabilize the acoustic pressure level at high frequencies. [Solution] A soun...  
WO/2018/034015A1
[Problem] To provide: a sound generation device whereby a coil can be easily and securely fixed to a yoke, in a drive mechanism; and a production method therefor. [Solution] A first yoke 21 and a second yoke 22 are combined and a first m...  
WO/2018/030264A1
A linear actuator 1 that has: a mobile body 6; a fixed body 2 that comprises a case 3 in which the mobile body 6 is housed; and a magnetic drive mechanism 10 that drives the mobile body 6 in an axial line L direction. A sound emission ho...  
WO/2018/022209A1
Methods and devices are provided for a wireless microphone network whereby robustness for reception of audio information transmitted by one or more wireless microphones is enhanced. The system incorporates a dual stage network approach f...  
WO/2018/019963A1
A balanced armature driver assembly comprises a first balanced armature driver having an armature surrounded by a coil, said first balanced armature driver having two taps for connecting respective end points (12,14) of said coil to an i...  
WO/2018/014431A1
An hybrid Bluetooth earphone comprises an ear case (1), a Bluetooth receiver (2) and a frequency divider (3). A first acoustic chamber (11) and a second acoustic chamber (12) which are independent from each other are arranged in the ear ...  
WO/2017/212696A1
[Problem] To provide a sound-producing device capable of preventing a bonding agent by which a vibration support sheet is bonded to a frame from becoming attached to a joint part when a lower case and an upper case are combined. [Solutio...  
WO/2017/212697A1
[Problem] To provide a method for producing a sound-generating device which makes it possible to position a vibrating plate, a frame and a vibration support sheet with a high degree of accuracy and adhere the same to one another, and to ...  
WO/2017/212698A1
[Problem] To provide a sound-generating device capable of accurately eliminating an atmospheric pressure difference between a sound generation space and a neighboring space which are demarcated so as to sandwich a vibrating plate therebe...  
WO/2017/199226A1
A transparent ultrasonic emitter includes a first transparent conductive layer; a second transparent conductive layer; and a plurality of transparent spacers disposed between the first and second transparent layers conductive of the ultr...  
WO/2017/195433A1
[Problem] To provide a sound producing device capable of preventing an armature from becoming attached to a magnet even when the armature touches the magnet by application of external vibration. [Solution] An armature 32 is vibrated by a...  
WO/2017/183790A1
Disclosed are a noise blocking earset and a method for manufacturing same. A noise blocking earset, according to the present invention, can have a driver unit, having a back hole formed thereon, and a case having the driver unit embedded...  
WO/2017/168903A1
Provided is an earhole open-type sound reproducing device with which it is possible to obtain satisfactory sound quality across a wide bandwidth while employing bone conduction. A first equalizer 303 removes a high-frequency component wh...  
WO/2017/158583A1
A haptic transducer comprising a magnetic plate, a plurality of coils each separately couplable to a signal generator such that axis of each coil is perpendicular to the plate and all coils are on a common side of the plate, and signals ...  
WO/2017/158582A1
A haptic transducer comprising a magnetic plate, a plurality of coils each separately couplable to a signal generator such that axis of each coil is perpendicular to the plate and all coils are on a common side of the plate, and signals ...  
WO/2017/146323A1
A hybrid type dynamic speaker is disclosed. According to the present invention, two or more nozzle holes are formed in a mounting portion of a frame provided with a full-range generating speaker, and each nozzle hole is equipped with bal...  
WO/2017/125976A1
[Problem] To provide: an acoustic transducer device which is a balanced armature type capable of improving acoustic pressure without involving upsizing; and a sound output apparatus. [Solution] A projection-type display device according ...  
WO/2017/126040A1
[Problem] To provide a sound production device which enables easier assembling work and high-accuracy setting of relative positions of an armature and a diaphragm, and which eliminates the need for positioning work. [Solution] A flexible...  
WO/2017/118878A1
An electro-acoustic transducer including a housing having an interior volume with first and second interior volume portions and a sound aperture that extends to the first interior volume, a diaphragm located between the first and second ...  
WO/2017/116023A1
Disclosed is a noise shielding earset having an acoustic filter. The noise shielding earset having an acoustic filter according to the present invention comprises: a driver unit for generating sound; and an acoustic filter for covering a...  
WO/2017/116021A1
An earset having a hollow channel is disclosed. The earset having a hollow channel according to the present invention may comprise: a case; a speaker embedded in the case; a tube separated from an output space of speaker sound on the fro...  
WO/2017/115521A1
[Problem] To provide a method of manufacturing a sound generating device with which warping of an armature which activates a vibrating plate can me minimized. [Solution] An armature 32 is caused to vibrate by means of a magnetic field ge...  
WO/2017/103666A1
A transcutaneous bone conduction device includes magnets secured to housing of an external portion of the device. The magnets can be disposed within the housing, or secured to an external surface thereof. The magnets are disposed about a...  
WO/2017/105851A1
A microphone includes a base with a port extending therethrough, and a microelectromechanical system (MEMS) device coupled to the base. The MEMS device includes a diaphragm, a back plate, and a substrate. The substrate forms a back-hole....  
WO/2017/083626A1
An acoustic receiver assembly includes a housing with a receiver structure, e.g. a moving armature loudspeaker, configured to convert an electrical signal into sound energy that emanates through a channel of a sound tube coupled to the h...  
WO/2017/070535A1
At a configurable filter bank, commands or command signals are received from an external processing device. The commands or command signals are effective to configure and connect selective ones of the plurality of elements in the filter ...  
WO/2017/047187A1
[Problem] To provide: a sound generation device capable of positioning a magnetic field generation unit and an armature and also capable of assembly without adjustment; and a production method therefor. [Solution] A magnetic field genera...  
WO/2017/047198A1
[Problem] To provide: a sound generation device whereby the relative positions of a magnet and an armature can be set with high precision and do not require adjustment; and a production method therefor. [Solution] A sound generation devi...  
WO/2017/047200A1
[Problem] To provide a sounding device that is capable of improving the vibration characteristics of a vibration plate supported by a flexible sheet. [Solution] A flexible sheet 12 is attached via a resin film to a vibration-side opening...  
WO/2017/047188A1
[Problem] To provide a sound production device in which a sufficiently wide placement space for a diaphragm can be ensured and a magnetic field generation unit and an armature can be stably secured to a wide mounting surface. [Solution] ...  
WO/2017/018074A1
The purpose of the present invention is to improve an acoustic characteristic without causing increases in manufacturing cost and size. An acoustic transducer is provided with: a drive unit comprising a yoke formed of a magnetic material...  
WO2017011461A1
A first acoustic transducer has an armature, and the armature moves within a magnetic field. The first transducer also comprises a first coil. A second acoustic transducer has a first outer circumferential edge and an inner circumferenti...  
WO/2017/007093A1
An acoustic transducer includes a first acoustic module and a second acoustic module. The first acoustic module includes a first motor, a first rod driven by the first motor, and a first vibrating plate connected to the first rod and vib...  
WO/2016/191453A1
Microphone devices are disclosed. The microphone device includes a base, a lid, a side wall between the base and the lid, and a MEMS die. The side wall includes a first portion with a first width and a second portion with a second width ...  
WO/2016/155812A1
The present invention relates to a magnetically balanced electrodynamic motor assembly for bone conductor vibrators comprising a first magnetic circuit adapted to generate a constant magnetic flux, and a second magnetic circuit adapted t...  
WO/2016/137713A1
A balanced armature ("BA") based valve is described. The valve includes a motor having a coil assembly and a magnetic system, an armature extending through or being located adjacent to the motor, a drive pin coupled to the armature, and ...  
WO/2016/116732A1
An in-ear monitor for fitting within the ear canal of a user, the monitor comprising a body part (2, 5) and an audio outlet port (1), and a flexible ear tip (6) for fitting over the outlet port and within the ear canal, the body portion ...  
WO/2016/099928A1
An apparatus includes a first armature and a second armature, wherein the first armature and the second armature are coupled together in a common connection region; a coil, wherein at least a portion of the common connection region exten...  
WO/2016/079385A1
There is provided an apparatus comprising: a surface arranged to be mechanically displaced, a first magnet coupled with the surface, at least one supporting member for supporting the surface, a base comprising a second magnet, wherein th...  
WO/2016/063462A1
Provided is an earphone comprising: a housing; a dynamic-type driver unit located in the housing; and a sound guide tube the length of which is approximately 10 mm or more and which transmits sounds outputted from the dynamic-type driver...  
WO/2016/037445A1
The present invention relates to the technical field of acoustics. Disclosed is a sound-emitting component of a headset or a speaker, comprising a bracket, a moving-coil unit and a moving-iron unit; a back side of the bracket is provided...  
WO/2016/033912A1
The present utility model discloses a shielding case using a moving iron unit and used for a speaker. The shielding case using a moving iron unit and used for a speaker, of the present utility model, comprises an upper case and a lower c...  
WO/2015/161874A1
A microphone assembly (1) is provided, comprising a transducer (2) and a voltage supply (6) for the transducer (2). The voltage supply (6) is configured to supply a temperature dependent voltage for reducing a temperature dependency of t...  
WO/2015/141945A1
Disclosed are a cable assembly constituted with a coaxial cable and a plurality of signal cables, a camera module, and a camera device for a vehicle including the same. The camera device for a vehicle comprises: a camera module including...  

Matches 1 - 50 out of 1,313