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Microphone comprises a hollow housing, a protective screen, a sound pickup, a diaphragm, a moving coil, a magnetic element, a sound pickup switch and an output connector. Around the head part of the housing on the side of the protective screen there is a light-reflecting channel with V-shaped recesses, in each of which there is at least one LED which is capable of emitting white or coloured light. The LEDs are connected to a unit for converting voice audio frequencies to optical radiation and a direct current source. A white or coloured light filter can further be placed on the outer side of the light-reflecting channel. |
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In a microphone, having a hollow housing, a protective screen for a sound pickup, having a diaphragm, a moving coil, a magnetic element, a sound pickup switch, an output connector, on the side of the protective screen in the wall of the housing there N rows of LEDs placed arranged in a circle, said LEDs being connected by conductors to a power supply unit, a direct current source mounted inside the housing and a keyboard. One row of LEDs is separated from the other by a curved flat partition wall, having an edge in form of sinusoid, wherein the partition walls are aligned with one another to form cells. The number of LED rows matches the number of keys on the keyboard. A LED switch is placed on the housing. An opening is made in the wall of the housing for connecting the plug of a charging device to the terminals of the direct current source. A swivel with a holder is mounted on the wall of the housing. |
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Low-frequency loudspeaker with flat diffuser and use thereof Invention relates to acoustics, and particularly to audio equipment. The acoustic system comprises a diffuser, a diffuser suspension, a magnet system and an oscillatory coil. The diffuser suspension is axially symmetric and rear primary emission passes at least 50% through the inner part of the magnet system. The thickness of the diffuser at the outer diameter is more than 10% the diameter of the diffuser, and the ratio of the diameter of the oscillatory coil to the diameter of the diffuser is at least 0.75:1. The diffuser is made as a diffuser of a low-frequency loudspeaker, wherein said system further includes a loudspeaker for reproducing higher audio frequencies. At least one region of the diffuser is made of elastic foam material and the diffuser itself is three-layered. The core material of the three-layered diffuser has a cellular structure made of aramid fibres, paper, nomex, aluminium, plastic, polyester, polypropylene and/or has outer layers of fibre materials, metal foil and/or plastic film. |
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Ultrasonic surface wave converter and method for manufacture thereof Ultrasonic surface wave converter comprises piezoelectric elements which can be connected to an ultrasonic flaw detector, an acoustic insulator, a housing, wherein the piezoelectric elements of the converter, which are polarised on the thickness, are mounted on one face perpendicular to the working surface, lie apart from each other by a distance greater than the spatial duration of a probing pulse (L>τc), are acoustically insulated from each other and are electrically connected together or separately with clock or synchronous connection. |
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Headset of mobile electronic device Headset for a mobile electronic device has neck loop with an electrical connector which is connected to earphone lines connected to said loop. Points of connecting the lines to the neck loop lie in the immediate vicinity of each other and form a dorsal line connection node. The lines are further mechanically connected to each other at a point situated on portions between earphones and the dorsal line connection node to form a suboccipital line connection node at connection points thereof. When worn by a user, in the working position, the dorsal line connection node and the suboccipital line connection node are designed to be placed on the dorsal surface of the neck, and lines on portions between earphones and the suboccipital node are designed to be placed on top of the external ear and are situated on the surface of the head in tightened state. |
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Acoustic horn and method of making same (versions) Method of making an acoustic horn involves creating a horn model with a profile in the form of an exponent and/or tractrix, dividing the model into a central part and two lateral parts, dividing each part with vertical planes parallel to the plane of symmetry and lying at a distance from each other to form a pattern, cutting flat elements from a thin-wall plate on the patterns, said elements having thickness which is equal to the distance between the vertical planes, and connecting the flat elements by adjoining the flat sides to form the central part of the horn. Each lateral part of the horn is formed by series-connection of plates with thickness of not less than 0.1 mm to form a stepped curve in a plane perpendicular to the plane of symmetry of the acoustic horn, and the lateral parts are then connected to lateral sides of the central part. The acoustic horn is a housing with an input opening and an output opening. The housing has a cavity linking said openings, said cavity being bounded by the wall with a profile in the form of an exponent and/or tractrix, wherein the housing is made from the central part having a width of not less than the cross dimension of the input opening, and two lateral parts attached to the central part to its lateral surfaces. The central part is made of a set of lateral surfaces of plates attached to each other. |
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Method involves placing a hydrophone and a radiator in a measuring reservoir, while aligning the hydrophone with the reference direction to the radiator; irradiating the hydrophone with signals of the radiator and receiving a signal using the hydrophone; further, without changing the position of the geometric centre of the hydrophone relative the radiator, turning the hydrophone by 180°; receiving a signal of the radiator and measuring the change in time delay of the signal received by the hydrophone; when changing the direction of reception from the reference direction to the opposite, displacement of the acoustic centre of the hydrophone relative to the geometric centre in the direction of reception is calculated as a product of the obtained time delay by the speed of sound in water. |
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Iron-free drive unit with non-scattering coil converter Invention disclosed a drive (20) with a coil converter, a method of making a magnetic element and loudspeaker. The drive has a coil (22), a magnetic element (23) capable, during use, of providing a path for magnetic flux between ends of said coil (22). The magnetic element (23) has a fastened magnetic device consisting of only one fastened magnet, having a semi-ellipsoidal cross-section which provides a curvilinear path for said magnetic flux. |
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Angle-dependent operating device or method for generating pseudo-stereophonic audio signal Invention relates to audio signals and devices or methods for generation, transmission, conversion and reproduction thereof. A monophonic audio signal of arbitrary directional characteristic is subjected to targeted propagation time difference (1210, 1211) and loudness corrections (derived from 1212 and 1213), while parameterising the angle phi (1205) included by the main axis (1203) and the direction of impingement of the sound source (1204), an imaginary left opening angle alpha (1206), and an imaginary right opening angle beta (1207), and the directional characteristic of the monophonic signal to be stereophonicised (represented in polar coordinates). The result is an M-signal and an S-signal allowing MS matrix formation (and thereby the stereophonic reproduction of the originally monophonic audio signal). |
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Method of determining phase angle of complex sensitivity of hydrophone by reciprocity method Invention can be used for absolute complex field calibration of hydrophones to obtain the magnitude and phase angle of sensitivity of the hydrophones for the acoustic centre of the hydrophones. The existing reciprocity method is supplemented with repeating reciprocity method procedures for a reversible transducer-calibrated hydrophone pair after turning the hydrophone by 180°. As a result, change in time delay of the signal of the reversible transducer received by the hydrophone is measured, while changing the direction of reception of the hydrophone from the initial direction to the opposite direction, and phase incursion, which corresponds to the measured time delay, is calculated at the frequency of the experiment. The hydrophone and the reversible transducer are then irradiated by a radiator and the reciprocity method procedures are repeated. The obtained phase incursion values are entered as an adjustment when determining the phase angle of the complex sensitivity of the hydrophones. |
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Invention relates to info systems and converters of mechanical effects into optical signals. Proposed annunciator comprises interconnected converter of mechanical power into electric power and converter of electric power into optical power. Said converter of mechanical power into electric power is composed of encased piezoelectric element with damping gaskets. Elastic element (helve) has one end clamped to the case and includes hammer on its free end aligned with said piezoelectric element. Bicycle wheel rim is equipped with pusher (hook) to allow mechanical contact with elastic element free end in wheel rotation. |
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Acoustic system has a sound signal source, an amplifier and an electroacoustic transducer in form of a resonator, having a housing, a line of loudspeaker heads connected to the resonator through support rings and spaced apart along the axis of the resonator, an acoustic reflector in form of a disc which is placed opposite the loudspeaker cones along the axis of the resonator through a rod. |
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Disclosed is a method of sounding facilities, which involves selecting spectral components of an electrical signal corresponding to different frequency bands, converting electrical signals into sound signals using loudspeakers mounted in parallel with given deviation of parallelism. The method also involves using a reflecting surface which is acoustically connected to the loudspeakers, tuning the system to establish in each loudspeaker - reflecting surface pair a standing wave at a frequency selected in accordance with external meteorological parameters and individual perceptibility, said frequency being determined by test listening with simultaneous measurement of human vital physiological parameters. |
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Ultrasonic sensor (100) has a housing (101) with a circular side wall (102) and a bottom (104) on which a transducer element (106) for generating ultrasonic vibrations is mounted, wherein the side wall (101) has a lower area (108) on which the side wall (102) in a plane parallel to the bottom (104) has a primarily rotational-asymmetric profile and an upper area (114) on which the side wall (102) in the direction of its upper edge (116) transitions into a substantially rotational-asymmetric profile. |
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Invention refers to medical equipment, namely systems for electrical nerve stimulation and to cochlear implants. A method for simultaneous electrode stimulation consists in calculating the electrode pulse amplitudes of the multiple-channel matrix using the parameters of spatial channel distribution. The calculation is based on the spatially independent pulse responses characterised by the first exponential decay of constant a of the first side of the electrode and the second exponential decay of constant β of the second side of the electrode. The pulse amplitudes to record the spatially dependent pulse responses are calculated additionally by the spatially dependent weight ratios cn (n=1, 2, …, N). A cochlear implant system comprises the multiple-channel electrode matrix and a stimulator. The system also comprises a machine-readable carrier to implement a method for activation. |
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Acoustic sensor includes a piezoelectric substrate, a common electrode located on one side of the piezoelectric substrate, a set of the first electrode structures located on opposite side of the piezoelectric substrate relative to the common electrode; with that, each first electrode structure is located radially relative to a conditional central point and includes a set of electrode elements located in circumferential directions. With that, the above first electrode structures are located with possibility of choosing one or more groups of electrode elements from the specified first electrode structure so that the above first electrode structure can be tuned to the pre-determined frequency range, and each of the above first electrode structures is arranged pre-determined radial direction relative to the above conditional central point so that each of the above first electrode structures can be tuned to signals having the corresponding directivity. In addition, the sensor is equipped with the second and the third electrode structures and can operate in the frequency range of 10 kHz to 20 MHz using directional Lamb waves. |
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Audio reproduction headphone device and headphones Audio reproduction headphone device has a housing with an inner sound chamber and an electroacoustic transducer inside the housing. The housing is made of wood with thickness of the wall between the outer surface of the housing and the inner surface of the sound chamber in the range of 5 mm to 25 mm, and the inner side surface of the sound chamber has a row of parallel-arranged benches. The inner surface of the sound chamber opposite the electroacoustic transducer is flat and is approximately parallel to the plane of arrangement on the housing of the radiating element of said transducer. The headphones also include a pair of earphones connected by an apparatus for attaching to the head and an apparatus for feeding a signal to the electroacoustic transducer. |
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Method to determine even tension of membrane from isotropic material Membrane is jammed by two rings arranged at different sides of the membrane surface, and transverse load is applied, distributed along the area of the circle, the centre of which matches with the centre of jamming rings, the value of maximum membrane sagging is measured, and even tension of the membrane is determined σ (0) in accordance with the formula |
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More than one step-up transformer is used, the secondary windings of which are parallel connected to electrodes, between which there created is high-voltage electric arc emitting sound vibrations by means of sound frequency amplifier and the commutator alternately distributing output voltage of amplifier to primary windings of transformers. With that, pulses of constant frequency and duration are obtained. During pulse action, transformer accumulates the energy proportional to output voltage of amplifier, which is transferred to arc at the interval between accumulation pulses. Pulses on primary windings of transformers are uniformly offset relative to each other within one carrier frequency period, have temporary ratios of energy accumulation and transfer, which correspond to number of used transformers. Besides, on arc electrodes there performed is series, alternate, amplitude-pulse modulation from each transformer, which improves accuracy of sound signal. |
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Apparatus and methods for use in creating audio scene Method creating an audio scene for an avatar in a virtual environment comprises the following steps: creating a link structure in a virtual environment between a plurality of avatars; reproducing an audio scene for each avatar based on its connection with other avatars connected by the links; wherein the created link structure is configured to determine the angle for reproducing the audio scene and/or the attenuation coefficient for applying to audio streams on input links. The angle for reproducing the audio scene corresponds to angles of links between said each avatar and other avatars connected by links; the link structure includes a minimum spanning tree. Loops are introduced into the minimum spanning tree such that the minimum length of the loops is shorter than a predetermined value so as to prevent echo in the reproduced audio scenes. |
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Method for highly directional reception of sound waves Method in which during lateral arrival of sound waves at an angle of ±α to the zero position of the axis of a disclosed microphone receiver, directed towards the sound source, a time delay is formed between two acoustic inputs, equal to: Δt d = L ⋅ sinα C s , where Cs is the speed of sound, L is the distance between acoustic inputs. |
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Ultrasonic transducer for physiotherapy equipment Ultrasonic transducer for physiotherapy equipment includes a piezoelectric element protective layer made from wear-resistant silicate enamel. |
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Selective acoustic emission converter of elastic waves Selective acoustic emission converter of elastic waves with a circular beam pattern on a plane or scanning of a curvilinear sheet structure includes a circular piezoelectric element, the surface of which is formed by rotating a plane figure in form of a convex polygon with at least four sides around an axis perpendicular to the base of the piezoelectric element, with a working electrode deposited thereon. The converter includes an acoustic unit which includes said circular piezoelectric element, which is in form of a finite cylinder or a truncated cone, with the inclination angle of the lateral surface to the base of not more than 90°, and a protector prism inserted into the circular piezoelectric element and interfaced on the shape with its inner working surface, the material of which has longitudinal wave speed less than the propagation speed of the selected mode of normal waves. The working electrode is deposited on the inner surface of the circular piezoelectric element. |
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Magnetostrictive converter of high-frequency ultrasonic vibrations Converter has an acoustic line in form of a cylinder, on one end of which there is a magnetostrictive element in form of a uniform monocrystalline film, the thickness of which is a multiple of the wavelength of ultrasonic vibrations of the acoustic line. The converter has a means of generating a variable component and a constant component of magnetic field, directed along the axis of the acoustic line. On both sides of the magnetostrictive element there are magnets with constant magnetic field strength not greater than the saturation field of material of the analysed uniform monocrystalline film. |
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Safe insert earphone device has earplug (1A, 1B) heads, sound cavities (2A, 2B), channels (3A, 3B) for transmitting a sound wave, a main housing (4), a cable (8) and a plug (9), wherein channels (3A, 3B) lie between the sound cavities (2A, 2 B) and speakers (5A, 5B), and sound-collecting cavities (10A, 10B) lie between the speakers (5A, 5B) and the channels (3A, 3B) for transmitting a sound wave; points of connection of the speakers (5A, 5B), the sound-collecting cavities (10A, 10B) and the channels (3A, 3B) for transmitting a sound wave are packed to form small sealed resonators (11A, 11B) in the main housing (4). The sound-collecting cavities (10A, 10B) form a cone. A sound wave is transmitted by two channels (3A, 3B) through the sound-collecting cavities (10A, 10B) and then to the ears in which two earplugs are inserted for listening. |
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Earphone cable retracting apparatus has a winding device, a drive mechanism in form of a micromotor, a speed switching device in form of a braking device and a signal connector. Earphones with automatic cable retraction comprise earphones, an earphone cable and said earphone cable retracting apparatus. The wireless telephone includes a mobile telephone housing which is provided with a socket for earphones, earphones made together with a voice transmitter and a call receiver, an earphone cable and said earphone cable retracting apparatus, placed in the housing of the mobile telephone. The electronic device includes a housing which is provided with a socket for earphones, earphones, an earphone cable and said earphone cable retracting apparatus, the earphone cable and the earphone cable retracting apparatus being placed in the housing of the electronic device. |
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System and method for generation of stimulating signals by electrodes of implanted multi-channel electrode array of cochlear implant include processing of acoustic signal within hearing range by a group of filters. Each filter within the group is connected to at least one channel having an electrode. The group of filters include the first pass-band filter which generates a broadband signal b(t) and which range of frequency covers at least one of the following ranges: range of voice pitch frequency (100 Hz-400 Hz) and range of the first vowel formant (400 Hz-1000 Hz). At least one electrode connected to the first pass-band filter is actuated by stimulating signals sent to electrodes which depend at least partially on the broadband signal b(t) to present time data of thin structure. |
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Flexible electroacoustic transducer and method of making said transducer In a flexible electroacoustic transducer, having two circular piezoceramic plates with conductors electrically connected to said plates, rigidly connected to corresponding metal plates having through-grooves for outlet of conductors filled with an adhesive, and an annular support, the surfaces of the piezoceramic plates adjoining the metal plates are connected by one conductor; the through-grooves for outlet of conductors are in form of open grooves; the annular support is made as a separate component and is provided with end annular depressions in which the metal plates are mounted using an adhesive, wherein the inner diameter of the annular support is greater than the diameter of the piezoceramic plates. At the first step, surfaces of the piezoelectric plates are electrically connected by one conductor. An adhesive is applied on the surfaces to be glued. One of the plates is pulled through the inner opening of the annular support. The metal plates are mounted in the annular depressions of the annular support, wherein the conductor which connects the piezoceramic plates is inserted into the open grooves of the metal plates and the piezoceramic plates are glued with the metal plates. |
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Wireless headphone to transfer between wireless networks Wireless headphone comprises a transceiving circuit to receive stream audio from a source of data via a local specialised wireless network. The invention concept is as follows: when the data source and the headphone are outside the action zone, they automatically transfer to an infrastructural wireless network. If the common infrastructural wireless network is not available both for the source of data and for a set of speaker phones, the headphone is connected to a host server via an available wireless network. |
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Feedback related to gestures in electronic entertainment system In the method a gesture input is encouraged with a microphone from a user, the gesture input is received from the user by means of one or more motion sensors, the gesture input by the microphone is compared with the expected gesture input. Then the mentioned gesture input with the microphone is assessed on the basis of this gesture input with the microphone with the expected gesture input by the microphone. Feedback is provided to the user on the basis of this assessment. |
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Adjustable headphone, that may be introduced into the user's ear canal in a compressed configuration and adjusted by the user for extension and close fit to the ear canal, includes a body with a resilient roller, a cantilever arm, a disc, an actuating mechanism consisting of two sections; the first of them is designed so that to enable adjustment of the resilient roller shape. |
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Optical-electronic converter has a hollow light guide consisting of a movable plate connected to a sensitive element and three fixed plates, a radiation source directed towards one of the plates, and a photodetector, wherein an optical beam from the radiation source propagates in the light guide on a broken spiral, which corresponds to the path of skew rays in light guides. |
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Mode of excitation for rod-shaped hydroacoustic transducer Mode of excitation for rod-shaped hydroacoustic transducer containing piezoelectric rod divided electrically into two parts with rear and front straps consists in that to the part of piezoelectric rod contacting with the rear strap exciting voltage Ut is supplied. Amplitude of this voltage is decreased at first with frequency growth and then, when it reaches its maximum value at frequency F2 corresponding to the first even harmonic of the piezoelectric rod at in-phase excitation, amplitude is decreased symmetrically. At that phase of voltage Ut in relation to voltage UF supplied to the other part of the piezoelectric rod is changed sequentially with growth of frequency from ±π at frequency F0=0 up to ±π at frequency 2F2; at that values of specific impedance zF and thickness lF of the front strap are selected under the following conditions: and IF≈0.251·cF/c, where zk and zc are specific impedance of piezoelectric rod material and liquid medium into which emission is carried out; 1 is a length of the piezoelectric rod; cF and c are rates of sound in materials of the front strap and piezoelectric rod. |
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Dynamic head of composite loudspeaker Composite combined loudspeaker is proposed, which comprises a chassis (11) of a head unit, an external dynamic head (18) and an internal dynamic head (8), besides, both heads are connected to the specified chassis (11). The external head (18) has an inner edge, which sets a hole in the head (18) and forms a functional edge, and the inner head (8) is at least partially covered with the hole of the external head (18) and has a central acoustic axis, arranged at the distance from the functional edge in the radial direction. The distance in radial directions relative to the specified axis is not constant, i.e. has the first value in the first radial direction and the second value, differing from the first one, in the second radial direction. |
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Communication device includes multiple microphones and a sidetone feedback notification module for producing a notification signal, which is connected to the microphones. The notification signal is based on a combination of input audio signals from the microphones and the sidetone feedback notification module generates a notification signal before separating the speech signal from the non-speech signal. Furthermore, the communication device includes a notification device which provides a feedback signal to the user based on the notification signal, which is connected to the sidetone feedback notification module. The feedback signal provided to the user based on the notification signal can be an audio, visual or tactile signal. |
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Antenna module of precision doppler log for deep underwater vehicle In the antenna module, the front matching layer is made half-wave from a metal with high sound speed, the active piezoceramic disc is immersed into the working medium by said front matching metal layer through a half-wave layer of liquid whose acoustic characteristics are close to acoustic characteristics of the working medium. |
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Proposed robot comprises armored body from ceramic plates with rotary turret, running gear with motor-driven wheels, storage battery system, diesel-generator or internal combustion engine, panoramic video cameras arranged on body and turret, sound-responsive self-guidance system. Running gear comprises telescopic posts of motor-driven wheels. Video camera casing comprises sliding armored blinds, and lens glass replacement mechanism. Spherical grenade to be fired from gun comprises ball-shape metallic layer arranged in fluoroplastic shell. Ball-shape explosive is arranged inside said metallic layer that has inner cavity, air ducts penetrating through layers and shell, pressure gage and detonator. |
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Optical microphone comprises a body, a membrane, fixed along its perimetre, a monochromatic source of light, a focusing lens and a photodetector. The source of monochromatic radiation and the focusing lens are installed opposite to the first end of a fibre optic light guide, and the photodetector is arranged opposite to the second end of the fibre optic light guide. The microphone membrane is made as corrugated from a thin layer of silicon nitride with thickness of 0.1 mcm, besides, light is reflected in it from a central section with the diametre of 0.4 mm produced with the help of gold application by photolithographic method. |
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Invention relates to radio broadcasting equipment and may be used as digital mike. Proposed device comprises converter case and dome-like diaphragm with corrugated suspensions. In compliance with this invention it additionally includes pulse radiation source, 1st, 2nd and 3rd aperture diaphragms, condenser, and neutral wedge-like light filter with guide, and lens. Besides 16 semitransparent micro mirrors are arranged along optical axis of said lens at 45°C thereto, one after the other. Sixteen photo receivers are located on casing side whereto micro mirrors are turned. Outputs of said photo receivers are connected to inputs of pulse amplifiers. Finally, it includes pulse generator. |
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Loudspeaker has a magnetic circuit (40) for generating a gap (40G) in a magnetic circuit along a direction other than the direction of vibration of the diaphragm (2), a speaker coil support (6) having a speaker coil and vibrates along the gap in the magnetic circuit, and a part (7) which converts the direction of vibration of the speaker coil support (6) in order to transmit vibration of the diaphragm. The part (7) which converts the direction of vibration is provided with a binding mechanism for converting angles of binding parts (70, 71), formed between the speaker coil support and the diaphragm, through a reaction force received from the vibration of the speaker coil support (6) and the housing (3). |
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Rod-shaped piezoelectric transducer Rod-shaped piezoelectric transducer is meant for embedding into a thick-walled antenna housing made from polymer material, having an arched curvilinear shape. The transducer has a bolt-reinforced active element in form of a set of piezo-ceramic washers, a front cup-shaped cover plate and a back cover plate in form of nut. The cup-shaped front cover plate, whose height is equal to the thickness of the thick-walled polymer housing, has a conical section adjoining its working surface for fixing the rod-shaped piezoelectric transducer level with the outer surface of the thick-walled polymer housing. On the outer cylindrical part of the surface of the front cup-shaped cover plate there are at least two grooves in which there are rubber sealing rings which damp vibrations of the cup-shaped front cover plate, for fixing the rod-shaped piezo-ceramic transducer in the opening on the thick-walled polymer housing, decoupling from it and sealing. |
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Adjustable insertable earphone with two speaker elements Arrangement of speaker elements is adjusted so that the user can set a more comfortable position of the speaker element. The hinge joint enables to turn the larger speaker element about the vertical axis of the hinge joint so that the larger speaker element can turn to and from the ear of the listener. The smaller speaker element can be adjusted relative the larger element by a connection which provides multiple degrees of freedom of rotation of the smaller speaker element relative the larger speaker element. |
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Acoustic system with adjustable beam pattern Invention mainly relates to loudspeaker devices and specifically to systems for obtaining the required beam pattern. The loudspeaker acoustic system with an adjustable beam pattern is a concave reflector which is in form of part of the surface of revolution of a quadric curve and a radiator mounted on a movable carriage on the axis of symmetry of the reflector. The carriage guide lies along the axis of symmetry of the reflector, and the radiator is a horn or dynamic loudspeaker. The geometric shape of the reflector in the acoustic system can, in different cases, be part of the surface of an ellipsoid or paraboloid of revolution, or part of a spherical surface. |
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Method of influencing person's psychophysiological state and training complex Invention relates to exercise machines, in particular to methods of training skills of psychophysiological state of person and to devices for training skills of relaxation and activation of psychophysiological processes. Method of influencing physiological state of person includes preliminary diagnostics of person's physical state. Influence during specified time on their hearing apparatus in combination with constant control of physical state. First, individual programme of training is selected for person taking into account their physiological parameters, person is placed on exercise machine in specified position and during influence on hearing apparatus additional sound impact with application of bone conductivity loud speaker is performed. Impact on person's hearing apparatus is performed by means of either earphones or loud-speakers. Impact on person's hearing apparatus is performed in combination with either impact on vision organs or olfactory organs, or simultaneously on organs of vision and olfactory. Effect of partial weightlessness is created by application of immersion bath. Person is placed into isolated medium with application of pressure chamber, pressure inside pressure chamber is changed either by increasing or decreasing. |
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Method and system providing hearing aid Application describes a method for providing a user with a hearing aid, tailored to individual needs of a user of a hearing aid when the individual data of hearing loss are measured. The steps are carried out when allowability of measured hearing loss is estimated, for which it is determined whether the said data of measuring of hearing loss are within a given allowable limit, in case of total or partial non-compliance, the procedure is stopped. In case of finding the measured data in the specified allowable limit, one standard profile is appropriate to the said data of measuring of hearing loss, according to a set of standard profiles, each of which corresponds to a certain type of hearing loss which is generally located in the said allowable limit, and is associated with a set of standard parameters of programming a hearing aid. The individual is provided with a hearing aid (104, 114), which is programmed according to a set of standard programming parameters associated with the said assigned standard profile. |
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Device for hearing protection has two closed headphones (2) located on each user's ear and tight to his head with the formation of closed space in each headphone (2) and around the user's ear. Inside the headphone a speaker (4) is located, containing sound-reproducing membrane (5), one side of which faces the user's ear, and the opposite side is turned to a closed space bounded by the membrane and the housing. To improve the frequency band pass in the main range while listening to music the interior of the housing by at least one hole or channel communicates with the environment outside the closed space of the headphone (2). In one preferred version of the invention the housing includes a capsule which is an integrated part of the speaker (4). |
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Devices and methods to improve frequency output of portable audio device Passive acoustic structures are disclosed, as well as portable audio devices arranged as capable of being used with passive acoustic structures, and methods to improve frequency output of a portable device loudspeaker arranged as capable of being used with the disclosed passive acoustic structure. The disclosed portable audio device may include a hole closer to a device loudspeaker resonator, a curtain or a door, to open and close the hole so that the device interacts with a joint station of the passive acoustic structure, comprising a labyrinth or a system of a transmission line, which may increase a frequency range of the system. For an end-user to enjoy musical and multimedia features of a portable audio device and in particular a mobile communication device, the above passive acoustic structure may represent increased lower frequencies for a typically small loudspeaker of a portable audio device without an additional loudspeaker and accordingly additional circuits. |
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Electromagnetic ultrasonic transducer and array Here is disclosed an electromagnetic ultrasonic transducer and an array thereof. The electromagnetic ultrasonic transducer includes a support (8), an elastic board (6) lying on the support (8), a magnetiser (7) on the elastic board (6) and a magnetic field generator (1) for vibrating the magnetiser (7), wherein the magnetiser (7) is several microns thick. The thickness of the elastic board (6) is also of the order of microns. |
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Oscillator comprises a holder of an oscillating part, a connecting ring for connection of the oscillator with an acoustic converter of a loudspeaker, and at the same time the holder of the oscillating part and the connection ring are connected to each other with the help of a detachable quick-acting locking device, which comprises the first locking elements to get a reliable joint, providing for reliable retention during vibration, and the second locking elements separated from the first locking elements and designed to get a strong joint between the holder of the oscillating part and the connection ring. The invention also relates to a flat loudspeaker, comprising such an oscillator, and to a transport vehicle comprising the specified flat loudspeaker. |
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Audio transmitter (1) containing at least one acoustically neutral body (2) with which two acoustic transmission elements (9a, 9b) shaped approximately like stylised funnel forming earflap (10a, 10b) flaring from acoustically neutral body (2) and coupled with waveguide (19a, 19b) with which three-pole microphone head is linked (25a, 25b), where the head is placed so that its front end made capable to receive sound is the nearest to waveguide inlet. Two "cold poles" (29a, 29b) of microphone heads are mutually inverted so that "cold pole" of one of microphone heads and "hot pole" (28a, 28b) and "ground" (30a, 30b) of other microphone head are connected or made capable to be connected with the same coupler or contact socket (31a, 31b) which is connected with or made capable to be linked with suitable amplifying an/or recording and/or processing device. |
Another patent 2513151.