Differential reverse noise control system
A differential antiphase noise control system contains a microphone connecting with preequivalent amplifing circuit which connects to a phase amplifing circuit and a phase-shifting ampli...
2
00120028
Audio assembly system In a system which comprises a plurality of audio components 2 to 5 connected to an amplifier unit 1 and wherein an audio signal from one component selected by a selector 17 is fed to a sp...
3
01805378
Device for fixing earphones and/or mini-microphones The invention relates to a device for fixing earphones and/or mini-microphones, especially to items of clothing or equipment. The aim of the invention is to develop a secure, easy to hand...
4
01804527
Noise-resistant microphone
A single and assembled-type high anti-noise pick-up was provided with front and rear entering sound mouth, and the front and rear entering sound mouth's direction was approximately same ...
5
200610121300
Electroacoustic transducer An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit compris...
6
02819507
Transponder with a changeable circuit configuration
A transponder (1) and an integrated circuit (4) have at least one signal channel (5, 6, 7), each signal channel (5, 6, 7) having at least two signal processing stages (25, 26, 27, 28, 29...
7
02128385
Multisound path three dimensional ear phone
The earphone has multiloadspeaker being set as per certain rule to surround around the head and opened structure is applied to have low voice transmitted into pinna through sound guide t...
8
02154999
Earphone based on bluetooth technology
The earphone based on blue teeth technique comprises a transmitter and an earphone. A transmitting module of blue teeth is set in the transmitter, and a receiving module of blue teeth is...
Hearing aid A hearing aid to be placed in the auditory canal. This hearing aid is composed of one side that is fitted near the outside of the ear and another side that has to be fitted facing the ear...
11
03806078
Dispensing of hearing aids A device aiding the dispensing of hearing aids which is able to test the perception of hearing and determining correct amplification of the hearing aid, whereby a plug adapted to be recei...
Loudspeaker arrangement
The invention relates to a loudspeaker arrangement inside a device for playing back stereophonic audio signals. The inventive loudspeaker arrangement consists of a housing located inside...
Howling control device and howling control method
A howling control apparatus and howling control method for controlling time up to the cancellation of howling suppression according to a howling occurrence situation, thereby eliminating...
An underwater playback device
This invention refers to a playback apparatus used under water, which contains protective cover, under water louderspeaker and matched power amplifier wherein said under water louderspea...
Case for containing electrical instrument
A case for containing an electrical instrument, comprises a frame having a peripheral wall portion, a cover member having a peripheral wall portion fitted on the peripheral wall portion ...
20
200410034276
Loudspeaker
A loudspeaker comprises a frame, a magnetic circuit unit, a vibration unit and a snap fastening device. The frame has a recess. The magnetic circuit unit is received in the recess of the...
Diaphragm for speaker
A small-sized diaphragm for a speakers exhibiting excellent acoustic performance can be obtained at low cost by mixing a cellulose-based powder, which has a particle size distribution of...
25
200410102326
Communication apparatus and TV conference apparatus
A communication apparatus and a conference apparatus are provided which are able to take a picture of a speaker automatically and correctly. A sound analyzer selects a speaker correctly....
26
200410098341
Hydrophobic coating of individual hearing aid components For the liquid impervious sealing of smallest crevices, chinks, capillaries and/or openings within a housing wall, in particular of electronic or electrical devices, it is proposed to pro...
An earplug adapter and an earplug (1)The utility model, relating to an earplug adapter and an earplug for enjoying music, provides an earplug adapter or an earplug capable of presenting a good sound quality and simple str...
29
200410097942
Externally ported loudspeaker enclosure An externally ported speaker enclosure includes a primary enclosure having a port or opening. The primary enclosure may continuously vary from a first dimension to a dimension of the port...
30
200420114189
Foldable electronic noise reducing earphone A kind of foldable electronically noise reducing earphone consists of a head band, an earphones and a foldable support. Its features is outer case edge of the earphone assembles a sound i...
Audio system having reverberation reducing filter A system (1) is described which is suited for suppressing audio distortion. The system comprises echo cancelling means g1, g2 coupled between an audio output (4) and a distorted desired a...
35
200480042194
Loudspeaker and components for use in construction thereof A loudspeaker and components for use in the construction thereof is provided. In one aspect, the present invention relates generally to a new type of loudspeaker comprising a driver havin...
36
200420120237
Nasal bone conduction hearing-aid device The utility model is a nasal bone conduction hearing-aid apparatus including regulating and controlling device, which is used for receiving and treating with sound signal which transmit f...
37
200420120223
Tone chamber arrangement The sound cavity device includes one main body, and inside the main body, there are front sound cavity, loudspeaker holding cavity communicated with the front sound cavity and back sound ...
38
200580001951
Audio signal supplying apparatus for speaker array In a directivity control apparatus for controlling the directivity of an array speaker system, there are preset a first directivity parameter for realizing a narrow directivity and a seco...
39
200410081846
Sound effect process device for wireless microphone
The invention consists of a radio frequency/audio frequency converting module used for receiving the radio signal and converting it into audio signal, and an integrated circuit DSP audio...
40
200410103623
Portable computer and sound box with sound come out from side
The invention consists of a first case, a second case and a speaker. The first case has a first protruding part mounted on the first surface of first case. The speaker has a membranous p...
FM wireless transmission outdoor sound equipment system
The invention relates to an outdoor sound system adopting microwave frequency range to transmit audio signal, where the transmitting section comprises audio signal processor, filter, ste...
43
200520019803
Magnetic radiation-proof earphone The utility model discloses a magnetic radiation-proof earphone, which belongs to electric appliances. It is comprised by a plug, a connecting lead, a magnetic loop, a telephone receiver,...
44
200510068970
Loudspeaker with low frequency oscillation
A speaker with low-frequency shake, including an outer shell that extend inward a ring piece at the bottom and combines a reed circle with the vibratory phonating component at the top; t...
Pressure wave generator and method for fabricating the same Even when compression stress is generated because a volume of a thermal insulation layer 2 is expanded due to oxidized by oxygen in the air, occurrence of cracks and fractures of the ther...
47
200510070058
Measuring apparatus and method, and recording medium A sound measuring apparatus includes an impulse response obtaining section obtaining an impulse response, a positive transform section performing a positive transform on the impulse respo...
48
200520012454
Blue tooth earphone with music playing function A blue tooth earphone with music playing function comprises digit signal processing unit used for processing and operating digit signal, bluetooth module used for receiving remote materia...
Built-in microphone earphone The utility model discloses a built-in microphone earphone which makes a microphone be connected with an earphone into an integral structure. It includes an earphone identity, in which th...
51
200510068361
Communication earphone regulating structure
The present invention relates to communication earphone adjustment structure. It contains ear canal type earphone, one positioning piece, said body setting locating slot with plurality r...
Construction for hearing devices or hearing aids The inventive casing construction for hearing devices or hearing aids respectively comprises a base plate ( 1 ) and casing shell detachable attached to said base plate ( 1 ), whereby the ...
54
200510069935
Sound box of imitating to stone
Cementing and screw fixing cast shaped objects are prepare for sound box. Weight percent of material constituents for sound box are as following: unsaturated polyester resin 28-60%, macr...
55
200580012734
Speaker and device using this speaker A speaker comprising a magnetic-circuit-mounted frame, a voice coil, an arched diaphragm, and an edge formed of a material different from that of the diaphragm. Part of the voice coil is ...
56
200580017416
Plasma display device A voice circuit is arranged on a chassis member. The voice circuit includes a voice outputting amplifier and a high-frequency bypass part. An output terminal of the voice outputting ampli...
57
200580016978
Sound production device Vibration energy of the sound generated by a sound production mechanism (2) of a music box (1) playing a music is transmitted to a sheet of paper (14) via a holding stand (12) so as to vi...
Piezoelectric inertial transducer An inertial force transducer (1) having an operative frequency range comprises a resonant element (2) having a frequency distribution of modes in the operative frequency range of the tran...
61
200580019173
Ultrasonic curing device An ultrasonic curing device includes a trace/following calculation unit (22) which sets a reference point (54) outside a curing region (52) in addition to the curing region (52) on an ult...
Vibrating reed A vibration reed, is largely that after the metal wire and the yarn are twisted together into a metal yarn, the metal yarn is used to weave a material which can create the specail vibrati...
67
200520027312
Aligning modulation audio meeting host The utility model provides acoustic equipment dedicated to conference system. Para-control type audio conference host comprises an audio amplifying device, which is composed of an input a...
Music broadcasting method and device The invention comprises: a normal playing device with a speaker for playing middle and high frequency signals, which is used for separating the high frequency, middle frequency and low fr...
70
200520066516
Compound functional bluetooth earphone The utility model discloses a compound functional bluetooth earphone which not only has function of bluetooth wireless transmission manner, but has function of receiving a media signal of...
71
200580018903
Ceramic type loudspeaker An object of the invention is provide a ceramic type loudspeaker which can place a loudspeaker at an arbitrary place without deteriorating the indoor decoration and without being limited ...
72
200520065569
Microphone sleeve The utility model relates to a microphone sleeve. It is provided with a body and an extension body that extends from one side of the body. A cavity that is used to hold the microphone is ...
73
200510102105
Voice-box module group This invention includes a voice box, the hi, mid and low pitch speakers and the corresponding circuits which connect to speakers and process the audio signal. The hi, mid and low pitch sp...
74
200520066202
Combined type earphone The utility model provides a combined type earphone adapted to receive or output sound source signal in many ways simultaneously, including an end head and two conductors drawn from the e...
75
200520036782
Health ear-plug A health-caring ear plug comprises a sound-proof ear plug head 7 and a sound-proof ear plug casing 8 that is connected with the sound-proof ear plug head 7; in the sound-proof ear plug ca...
76
200610059237
Electromagnetism actuator
An electromagnetic exciter includes a magnetic circuit device composed of an outer yoke, a flat magnet arranged within the outer yoke, and an inner yoke mounted on the magnet, and a casi...
Multi sound channel/Hi-Fi visual telephone
The invention discloses a multichannel/high-fidelity visible telephone, comprising CPU, video signal processing system, and audio signal processing system. And an audio signal input unit...
79
200610067507
Distributed skin stimulus artificial hearing device
The invention involves the medical treatment instrument field, which helps the deaf people to obtain the manual simulation hearing equipment. The equipment includes the audio simulative ...
80
200610093003
Electromechanical transformation device
An electromechanical transformation device has a magnetostrictive actuator and a driving device that drives the magnetostrictive actuator. The driving device drives the magnetostrictive ...
Transmitter assembly for a telephone handset
This invention is an improved frequency-response curve telephone transmitter assembly with commercial cassette electret microphone. The improvement of frequency-response curve is achieve...
83
85100574
Method for manufacturing transducer electret back pole
The method is to coacervate a transparent finish layer of PDCPX membrane of about 20 micrometre thick on the matrix of the transducer back pole or aluminium plate to be punched into the ...
84
85100483
Material for utrasonic transducer
This material, containing cerium oxide 1.0-4.5% and wolfram powder and insulating cement, is manufactured by casting or pressing. The transducer, using this material instead of former wo...
Circular cone piezoelectric ear-phone
The piezoelectric earth-phone with circular cone lump. The feature of the invention is adopted the circular cone lump of mass instead of the popular one with cylinder lump of mass. It al...
Electromagnetic pulse transducer
The design of the transducer comprises a high-order resonant mode with thin plate for the increase of its electroacoustic converting efficiency, and a uneven tuning method using the majo...
Feedback acoustic suppressor
The major technical problem of the present invention is to solve acoustic feedback appearing when the sound amplifying system is on operation. The main technical characteristic is earth-...
92
85100782
Multifuction electromedical device
The device can cure different chronic diseases such as hepatitis, heart-disease, neuro-deaf, and its effect is remarkable. It uses sound or sound current as the treatment source and gene...
93
85103167
Horn speaker
The horn speaker consists of an annular permanent magnetic-iron, a centre magnetic pole with a certain gap formed in the inner face of the magnetic iron, and a bowl vibrating film twined...
94
85103929
Vibrating plate loudspeaker
A piece of skin material is sticked on the vibrating plate, whose diameter is smaller than that of the plate. Therefore, the skin material does not extend outside the plate and the plate...
95
85103924
Vibrating plate for loudspeakers
A vibrating plate used for loudspeakers has a stepped shape portion positioned near the middle part of internal surface of the plate. As a result, it is easy to fix the coils, the manufa...
96
85105196
4-way stereosonic system being compatible with 35 mm film
In the most preferable embodiment of present system, four input signals as a group of modulating signals are separately encoded and recorded on the film. In one embodiment, four separate...
Piezo-electric loudspeaker
A piezo-electric loudspeaker consists of a conical oscillating plate which is connected with electric elements. It is characterized by the oscillating plate surrounding its neck and form...
99
85107348
Audi-frequency earpiece without power and wires
In the present invention, the received signal energy can be enhanced by rationally increasing the area and the number turns of the induction coil, increasing at the same time the volume ...
100
86100040
Multi-use voice-coil-impedance loud speaker
A multi-use voice-coil-impedance speaker has three or more voice-coil impedance such as 4, 8 or 16 ohm. It reinforces several times and can cooperate with output circuit. Its sound may b...
