Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 251 - 300 out of 1,370

Document Document Title
WO/1997/004618A1
An electronic driver for use with a linear and non-linear transducer includes a voltage controlled oscillator (1630) which generates an output signal (1603) in response to a frequency control signal (1625); a transducer driver (1604) whi...  
WO/1994/010817A1
This invention relates to electroacoustic transducers of the type which incorporate a reed armature. Thus a transducer (10) comprises a coil (12), magnets (13, 14), pole pieces (15, 16) and a reed armature (17), which passes through a ce...  
WO/1994/000961A1
An immersion-resistant housing adapted to receive a vibratable diaphragm spanning the interior of the housing to divide the housing into first and second chambers includes a first port communicating between the first chamber and the exte...  
WO/1992/009251A1
A communication device (10) for transmitting audio information to a user and a transducer (28) therefor are provided. The device includes processing circuitry within a compact housing (16) for converting input audio signals into transduc...  
WO/1991/010243A1
This invention relates to coil assemblies and in particular, but not exclusively, to such assemblies for acoustic transducers. Thus a transducer (10) includes a case (11) in which is located a coil (16) mounted on a flexi-circuit, which ...  
WO/1991/003914A1
An apparatus (58) for effecting a vibrating motion, comprising a housing (62 and 66), an electromagnetic device (76 and 78) attached to the housing for effecting an alternating electromagnetic field, a magnetic device (90 and 92) coupled...  
WO/1980/001428A1
An electrodynamic pick-up head has two reproduction channels (1 and 2). Each of the channels (1 and 2) comprises a single-section cylindrical coil (3 and 4) so oriented in relation to its magnet (5 and 6) that it embraces both its poles ...  
JP6619706B2  
JP6618619B2  
JP6616095B2  
JP2019193080A
[Subject] Maintaining the oscillation characteristic of an armature, the rigidity of a holding part of an armature is raised and a pronouncing device which can improve the shock resistance of the whole armature by this is provided. [Mean...  
JP2019193218A
[Subject] Inclination to a central axis of an armature is controlled and an electric machinery converter suitable for improvement and a miniaturization of performance etc. are provided. [Means for Solution] A structure part in which an e...  
JP2019527525A
[Subject] A balanced armature assembly which is not subject to influence of output impedance for connection in essence is provided. [Means for Solution] A balanced armature driver assembly is provided with the 1st balanced armature drive...  
JPWO2018079113A1
Armature 32 has holding part 32a, section extending 32b, bending part 32c, and flexible region 32d. Insert flexible region 32d of armature 32 in an inside of coil 27, magnets 24 and 25 are made to counter, and holding part 32a is put on ...  
JP2019145962A
To provide a composite type earphone that realizes clear, desirable sound reproduction by enabling sound reproduction of a wide reproduction frequency band including a limit frequency higher than a conventional one, through mounting a po...  
JPWO2018131435A1
Oscillating support sheet 12 which supports diaphragm 11 and diaphragm 11 is provided in opening 6 of the frame fixed in a case. Oscillating support sheet 12 has diaphragm supporter 13 and circumference holding part 14, and inner end fac...  
JPWO2018034016A1
[Subject] In a pronouncing device which has an armature which is inserted in a coil and counters a magnet, a pronouncing device which can stabilize a sound pressure level in a high region by optimizing a yoke is provided. [Means for Solu...  
JP2019092113A
To provide a sound producing device capable of being downsized while securing stability of total harmonic distortion.The sound producing device includes: a diaphragm; an armature formed of a magnetic material; a pair of opposing magnets ...  
JPWO2017212697A1
[Subject] A diaphragm, a frame, and an oscillating support sheet are positioned with high precision, and it can paste up, and provides the manufacturing method of the pronouncing device which the flexure part between a diaphragm and a fr...  
JP6476321B2  
JP6449468B2  
JP2018538757A
Noise cover Ear set which has an acoustic filter is indicated. Noise cover Ear set which has an acoustic filter by the present invention, In order that the driver unit which generates sound, and air may let it pass and may cover external...  
JP6438867B2  
JPWO2017145521A1
It is equipped and used for people's ear and a wearable device which mainly performs an acoustic output or an input is provided. Outer case object 110 is formed in long and slender shape which fits Concha 306 formed between leg 302b for ...  
JPWO2017125976A1
[Subject] Provide balanced armature type the sound conversion device and voice response apparatus which can raise sound pressure without enlarging size. [Means for Solution] A projection type display concerning this art is provided in a ...  
JP2018152730A
To provide an electric acoustic diaphragm and electro-acoustic transducer suitable for a balanced armature type electro-acoustic transducer which is an electromagnetic driving system.Each of electric acoustic diaphragms 3a, 3b includes: ...  
JP2018125650A
To realize a technique for making a cartridge itself correspondable to balance transmission.A first coil fixing cartridge 10 includes a substantially columnar magnet 18 integrated with a cantilever 20 in the same axial direction, and arr...  
JPWO2017115521A1
[Subject] The manufacturing method of the pronouncing device as for which curvature of an armature which operates a diaphragm is made to the minimum is provided. [Means for Solution] Armature 32 is vibrated and diaphragm 11 is made to dr...  
JPWO2017047187A1
[Subject] A magnetic field generating unit and an armature can be positioned and the assembly without adjustment also provides a possible pronouncing device and a manufacturing method for the same. [Means for Solution] Magnetic field gen...  
JPWO2017047188A1
[Subject] A disposition space of a diaphragm can be secured widely enough and a pronouncing device which can stabilize for them and fix a magnetic field generating unit and an armature to a large attachment side is provided. [Means for S...  
JP2018098596A
To obtain an ear-hole type hearing aid in which maintenance of sound port is not required.The housing 11 of ear-hole type hearing aid 1 has a contact part 11a which comes into contact with the inside wall of external auditory canal when ...  
JPWO2017018074A1
Improvement in an acoustic feature is aimed at without causing increase and enlargement of a manufacturing cost. A drive unit which has the armature with which a vibration portion which vibrates when driving current is supplied to a yoke...  
JP2018074471A
To provide a light-weight electroacoustic transducer that can be adapted to a small output.An electroacoustic transducer has: a diaphragm 12; a frame 16 which holds the diaphragm 12 in a peripheral area of the diaphragm 12; a voice coil ...  
JPWO2017126040A1
[Subject] Assembling work can be made easy, a relative position of an armature and a diaphragm can be set up with high precision, and a pronouncing device which becomes unnecessary [position adjustment work] is provided. [Means for Solut...  
JP6276511B2  
JP2018019306A
To especially suppress attenuation of high sound area components in an earphone comprising a plurality of driver units having different reproduction bands.The earphone comprises: first driver units (2d, 2e) for reproducing voice waves in...  
JP6265421B2  
JP6263520B2  
JP2018007220A
To provide a tweeter unit of a small diameter which can obtain a sufficient sound volume in a high frequency band, and an earphone using the same.A diaphragm 21 is vibrated by a piezoelectric element and an MEMS, and a sound is reflected...  
JP2017152903A
To provide an electromechanical transducer capable of obtaining high drive power relative to input power while maintaining satisfactory magnetic characteristics and reliability.An electromechanical transducer comprises: a structure secti...  
JPWO2016063462A1
a housing, a dynamic type driver unit provided in a housing, and sound which length is more than abbreviated 10mm, and transmits a sound outputted from a dynamic type driver unit -- it is an earphone provided with a lead pipe. [Chosen dr...  
JP2017059988A
To provide a sound production device in which a magnetic field generation unit and an armature can be positioned with high accuracy, and the magnetic resistance can be reduced even if the frame is formed of a nonmagnetic material.A magne...  
JP2017059987A
To provide a sound production device capable of obtaining high output sound production, by reducing leakage magnetic flux from a magnetic field generation part.A magnetic field generation unit 20 is attached to a drive side frame 5. The ...  
JP2017059986A
To provide a sound generation device in which the gap of upper and lower magnets held in a magnetic field generation part can be set with high accuracy.A magnetic field generation unit 20 is attached to the drive side attachment surface ...  
JP2016208213A
To provide an MM type pickup cartridge capable of obtaining a large output signal and obtaining a faithful reproduction sound with less distortion.An MM type pickup cartridge includes: a cantilever 12; a stylus tip 13 attached to a front...  
JP6014787B1
[Subject] Assembling work can be made easy, a relative position of an armature and a diaphragm can be set up with high precision, and a pronouncing device which becomes unnecessary [position adjustment work] is provided. [Means for Solut...  
JP5992074B2  
JP5973809B2  
JP5941203B1
[Subject] Vibrator of a simple structure is provided. [Means for Solution] Vibrator (10a) of the present invention is provided with a magnet (13) attached to the 1st diaphragm (11) and this 1st diaphragm (11), and a coil (15) provided so...  
JP5927186B2  

Matches 251 - 300 out of 1,370