373 results about "French horn" patented technology

A bottle unit (30) of a liquid atomizing apparatus is provided with: a bottle section (31) reserving a chemical liquid (L); a horn oscillating member (40) to whose a distal end the liquid (L) in the bottle section (31) is fed; and a mesh member (1) having a number of fine pores (2), and mounted to an end surface of the distal end (41) of the horn oscillating member (40) in contact therewith. The bottle section (31) is constituted of a large capacity section (B) and a small capacity section (b) in communication with the large capacity section (B) through an opening (32), and opposing to the distal end (41) of the horn oscillating member (40). The small capacity section (b) is formed such that the liquid (L′) therein is in contact with a point in the proximity of the contact section between the distal end (41) of the horn oscillating member (40) and the mesh member (1). With such a construction adopted, there can be provided a liquid atomizing apparatus that is obtained at a low cost with not only increased reliability but enhanced durability, and whose operations such as maintenance can be performed with simplicity and convenience without a necessity for a special liquid feed means.

This invention relates to one digital product test method, which adopts digital product and loads with test program software standard audio files and comprises the following steps: the product displaying the standard audio files and sending the sound to the microphone through sound isolation environment; then generating audio files on horn sound; the product uses audio comparison program to compare the audio file and standard frequency files; according to the comparison audio frequency test parameters comparing the audio frequency test parameters and standard parameters to output results. This invention also discloses one special device.

The invention discloses a natural environment recognition method based on time-frequency domain statistical feature extraction. The method comprises the steps of (1) collecting various types of natural environmental sounds such as the sound of an engine, a car horn and wind noise, and establishing a sound sample library, (2) carrying out window framing processing on a sound sample signal, (3) extracting the statistical features of all frame signal in a time domain, (4) marking the type of a sound source to which feature vectors belong, and establishing a sample feature library, (5) training a feature vector by using a support vector machine, and establishing a training model, (6) extracting the feature vectors of a target sound, (7) carrying out matching classification on the feature vectors of the target sound by using the support vector machine, and (8) providing an recognition result. According to the method, the disadvantages of traditional sound LPCC and MFCC feature extraction methods in the aspect of time and frequency combination are made up, and the type to which various types of sounds belong can be judged.

Since the prior-art is based upon analog circuitry, it uses sinusoidal frequency and / or amplitude modulation to simulate a rotating speaker at a reasonable cost. This invention uses a process based upon theoretically derived frequency modulation (FM) and experimentally measured amplitude modulation (AM) to simulate the rotating speaker. The main FM equation is based upon the Doppler effect and is equal to one over one plus a sinusoidal velocity coefficient. The main AM equation has a much narrower peak than sinusoidal modulation. This invention also contains several novel methods to control the angular velocity of the speakers, including changing the horn's speed dependent upon the original audio, modeling the speaker's acceleration to allow the physically realistic transitions between angular velocities, and adding noise to simulate natural variations in rotation. The digital apparatus that implements this invented process includes a digital processor and memory. In summary, the invented process is much more realistic sounding than prior-art.

Provided is a horn switching device in which mutual positioning of contacts is easy and in which fitting to an airbag device is easy. The horn switching device 70 is installed between a frame 60 mounted on a module cover 40 and a retainer extension part 16. Contacts 82, 102 are both installed on the module cover 40 side. Until the module cover 40 is pushed, an inner wall 122 is interposed between the contacts 82, 102, and the contacts 82, 102 are separated from each other. If the module cover 40 is pushed, the contacts 82, 102 also move downward, and the contact 102 is pushed inward by a gradient 123a, and the contacts 82, 102 are contacted with each other. By this, the horn sounds.

The related sound box, which can automatic tune sound effect as the environmental varies, comprises: a distance parameter input device to collect and obtain the distance between box and reference, a processor to calculate the action command for adjusting horn angle and control the next controller for rotating to the specified angle, a horn angular controller, and a rotatable horn assembly. This invention introduces much convenience to sound box application.

The invention relates to the technical field of sounds, in particular to a sound noise control circuit. A sound source is output to a horn after being processed by a power amplifier; the power amplifier is provided with a mute pin; the sound source is prohibited from being input to the power amplifier by starting the mute pin or the sound source is allowed to be input to the power amplifier by releasing the mute pin; a signal feedback control circuit is arranged between the mute pin and the power amplifier; and the mute pin is controlled to be started and released according to the information output by the power amplifier. The invention controls the starting and the releasing of the mute pin by monitoring the output voltage of the power amplifier as a feedback signal, and thereby, the sound POP noise is controlled; the information output by the power amplifier can be automatically detected; when the power amplifier can be operated according to the information; the power on and power off control balance point of the power amplifier is automatically found; and a comparatively simple control scheme according with the balance point is designed. The invention has simple operation, fewer parameter modification and wide fitness, can be used for different products and has stabler and more effective effect on controlling the POP noise.

A game caller wherein a reed assembly thereof may be replaced or interchanged and marketed in customized kits provided with elements for repairing or customizing the game caller, and a horn piece thereof is comprised of a pliable material that is pinched, or squeezed, or manipulated, or otherwise deformed by the hunter into a closed relation, at least in part, to change the volume of air through the horn piece and sound pipe whereby to imitate distress sounds during a hunting situation wherein game is coaxed and / or attracted.

The invention discloses a vector microphone with a horn structure. The vector microphone comprises a supporting rod, a sound pressure microphone is embedded in the upper end of the supporting rod, a sensitive element with a horn mouth in the x direction and a sensitive element with a horn mouth in the y direction are pasted on two adjacent sides of the supporting rod respectively and used for measuring vibration velocity information in each direction, and the horn mouths are used for increasing flow rate of sound waves. Sensitivity of a hot wire type vector sensor is improved by applying a horn mouth sensibilizing structure. A vector sensor sensitive unit structure based on a hot wire structure is provided, and a tandem type mirror image bridge pre-amplification circuit structure is applied, so that signal-noise ratio is increased.

Horn assembly adapted to be rotatably arranged in a housing (3) of a rotary ultrasonic sealer, and comprising a hollow shaft (1) having a longitudinal axis (2) and a horn (8) arranged coaxially in the hollow shaft (1) and connected to a converter (6) and preferably also a booster (7). The horn (8) is provided with a peripheral sealing area (13) outside an axial end (13) of the hollow shaft (1). The horn (8) is connected to the hollow shaft (1) by means of at least one annular, metallic support (11) extending radially outward from an outer face (14) of the horn (8) and axially acting retaining means so as to fixedly retain the horn (8) in the hollow shaft (1). The at least one annular support (11) is corrugated in cross section such that at least two grooves and one ridge arranged there between are provided between the inner face (10) of the hollow shaft (1) and the outer face (14) of the horn (8). The at least one support (11) comprises at its outer circumference a conical surface (26) adapted to cooperate with a corresponding conical surface (27) for centring the support (11) with respect to the hollow shaft (1).

The invention relates to a broadband ventilation and sound insulation window unit structure and application thereof. The broadband ventilation and sound insulation window unit structure includes an inner spiral blade (1), a hollow tube (2) and a thin-walled shell (3); the outer wall of the hollow tube (2) is fixedly connected with the inner spiral blade (1); the thin-walled shell (3) is arranged at the outer edge of the inner spiral blade (1) in a covering manner; the inner spiral blade (1) includes a fixed spiral layer (5) and horn-shaped spiral layers (4), wherein the fixed spiral layer (5)is arranged around the center of the outer wall of the hollow tube (2), and the horn-shaped spiral layers (4) are mounted on two sides of the fixed spiral layer (5); a spiral blade of the fixed spirallayer (5) is a blade with a fixed pitch; and a spiral blade of each horn-shaped spiral layer (4) is a spiral blade with a gradient change in pitch. Compared with the prior art, the broadband ventilation and sound insulation window unit structure has the advantages that the sound insulation effect is improved, the application range is wide, and the like.

The invention discloses a horn manufacturing system and belongs to the field of horn manufacturing. The horn manufacturing system comprises an annular conveying channel. A first feeding swinging plate device for frame body feeding, a first assembly device for turn line ring assembly, a second assembly for slice assembly and a second feeding swinging plate device for magnetic block feeding and assembly are arranged in sequence along the conveying channel,, accordingly, the assembly process of a horn is completed, automatic assembly of the horn is realized, the production efficiency and the product quality are improved, and the cost is reduced.

The invention relates to an intelligent control method and an intelligent control device for an electric horn. The dynamic frequency stabilization control method for the electric horn comprises the following steps of: driving the electric horn to work after square wave signals output by a singlechip are subjected to power amplification, then adjusting the frequency of the square wave signals in amode of gradual increasing or gradual reducing with adjusting quantity of 0.005 to 5.0Hz, and meanwhile, detecting the vibration strength of a vibrating diaphragm of the electric horn through the singlechip so as to find the natural vibration frequency of the electric horn. The control device of the electric horn comprises a bowl-shaped bottom shell, a static iron core, a dynamic iron core, a coil, the vibrating diaphragm and a control circuit, wherein the control circuit comprises a micro processing module, a power supply module, a coil driving module, a key input module and a vibrating diaphragm vibration signal detecting module. The invention provides the intelligent control method and the intelligent control device for the electric horn, which can automatically adjust the driving frequency in real time and automatically stabilize the sound pressure level, wherein the device has environment-friendly sound production function and is convenient to connect keys.

An object of the present invention is to provide an arcing horn system having a highly efficient dynamic current shutoff property including a dynamic current shutoff capability, for example, enough for the short circuit fault and other object thereof is to provide an arcing horn system capable of repeatedly maintaining the good dynamic current shutoff capability. In an arcing horn system, an insulative tube 21 for surrounding a front end side of an arcing horn 11, 12 is provided and an air vent 21a communicating from a front end portion of the arcing horn 11, 12 to a front end surface of the insulative tube 21 is formed on the insulative tube 21, so that the arc jet is blown off from the air vent 21a upon the flashover in accordance with the thunder stroke. The insulative tube 21 is made of a polyamide resin. A cap 30 for covering the front end side of the insulative tube 21 is disposed so as to prevent the intrusion of the rain water into the air vent 21a.

Disclosed herein is a speaker system unit with a cone type vibration plate, a horn and a diffuser. The horn is disposed such that a small-diameter opening thereof is positioned inward from a front opening of the vibration plate, and an outer surface of the horn is arranged along an inner surface of the vibration plate to form a first acoustic path. The diffuser has a base portion, a front end portion and an outer peripheral surface extending therebetween, and is disposed such that the base portion is positioned inward from a front opening of the horn, opposite the small-diameter opening of the horn. The diffuser has a specific shape such that the outer peripheral surface expands along an inner surface of the horn to form a second acoustic path and then narrows toward the front end portion of the diffuser.

A horn system for an automated loader has horns with upstanding and bottom walls. The horns move from a first, adjacent position in which the bottom walk of the horns completely or almost completely overlap to a second, remote position in which the bottom walls of the horns just barely overlap or do not overlap.

The invention discloses a gradiograph salvaging device. The gradiograph salvaging device comprises a horn-shaped salvaging head. The big head end of the horn-shaped salvaging head is arranged downwards, the outer wall of the small head end of the horn-shaped salvaging head is connected with at least one steel bar connecting rod, and the other ends of the steel bar connecting rods are connected with steel pipes. A notch is formed in the horn-shaped salvaging head. During using, the big head end of the salvaging head is downwards inserted into a surveying pipe, and a salvaging instrument clampedin the surveying pipe is salvaged; the horn-shaped salvaging head with the notch is adopted, and a guide wheel of a gradiograph can enter the horn-shaped salvaging head; and meanwhile, due to the fact that the minimum inner diameter of the horn-shaped salvaging head is slightly larger than the diameter of the gradiograph, the guide wheel of the gradiograph can penetrate the salvaging head, and accordingly it is guaranteed that the problem of guide wheel clamping or lower guide wheel clamping in the salvaging process can be solved.

The invention relates to a trumpet mute. The trumpet mute comprises an inserting part (1) which is inserted into the horn mouth of the trumpet and used for partially blocking the discharge of the air flow in the horn mouth, and further comprises an adjusting rod (2) and a locking part. One end of the adjusting rod (2) is provided with the inserting part (1), and the other end of the adjusting rod (2) is provided with a flow deflector (4); the surface of the flow deflector (4) guides the air flow blown out from the inserting part (1) to change the running path of the air flow; and the relative distance between the inserting part (1) and the flow deflector (4) on the adjusting rod (2) is adjustable; and the locking part is used for locking and locating the inserting part (1) and / or the flow deflector (4) of which the position on the adjusting rod (2) is adjustable. The trumpet mute provided by the invention not only can be universal in the mutes in various models, but also can greatly regulate different sound effects, thereby enriching the playing effects of the trumpet.

The invention discloses a horn with an acoustic cavity, relates to the technical field of electronic products and solves the problems that through the unique cavity structure design, a first 180-degree cavity and a second 180-degree cavity form a 360-degree space, the 360-degree space infinitely extends outwards from a central point to generate a 360-degree spatial sound sense, and a 3D stereoscopic space is really realized, so that a music source is clear, strong and definite in each phase position direction, and through the unique material and structure of two damping membranes, the noise and the reflection sound which are generated by a second vibrating diaphragm are eliminated to realize a noise reduction effect. The main technical scheme of the invention is as follows: the horn comprises a shell, a vibrating diaphragm component and a magnetic circuit driving component, wherein the shell comprises a first cavity, a second cavity and a third cavity, wherein the first cavity, the second cavity and the third cavity are connected in sequence; a vibrating diaphragm component comprises a first vibrating diaphragm arranged in a first cavity, a second vibrating diaphragm arranged in a second cavity and a third vibrating diaphragm arranged in a third cavity; and a magnetic circuit driving component is arranged in the second cavity and comprises a magnetic conducting plate, a magnet and a T iron. The horn is mainly used for the electronic products.

The invention concerns a escapement lever (1) for the escapement mechanism of a timepiece movement, including at least one fork delimiting a notch (2) which includes horns (3; 4) arranged for cooperating with a balance.Said fork notch (2) includes, in at least one said horn (3; 4), a slot (5, 6) and / or a chamber (30), wherein said slot (5; 6) and / or chamber (30) is arranged to confer elasticity on the corresponding horn, which softens the shock at each impulse, by absorbing part of the impact energy, and then returning it subsequent to said impact.

Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

The embodiment of the invention relates to a rotation sound box, which comprises a base, a bass box body, a bass horn, an inverted tube, a frequency divider, a mid-high-pitch sound box, a high-pitch horn and a mid-pitch horn, wherein the bass box body is arranged above the base; the upper surface of the bass box body is provided with a first mounting groove, and a bearing is embedded in the first mounting groove; the upper surface of the bass box body is provided with multiple ball fixing grooves; balls are arranged in the ball fixing grooves; the mid-high-pitch sound box is arranged above the bass box body; the lower surface of the mid-high-pitch sound box is provided with a second mounting groove; the other end of the bearing is embedded in the second mounting groove; the lower surface of the mid-high-pitch sound box is provided with a sliding rail; angular displacement is generated between the bass box body and the mid-high-pitch sound box through the bearing; and friction is generated between the balls and the sliding rail, dam movement is generated. A vertical separate structure is adopted, the upper mid-high-pitch sound box can rotate horizontally, good sound effects are realized, and requirements of a user are met.

The invention discloses a sound source device for sound wave agglomeration, which can generate a sound source for sound wave agglomeration and is mainly applied to dust removal, demisting, smoke removal and other scenes. The device comprises a connecting pipeline, a horn cover, a nozzle, a central connecting rod and a resonance cavity, the connecting pipeline is arranged in the center of the horncover, the first end of the connecting pipeline is located outside the horn cover, and the second end is located in the horn cover and provided with a plurality of vent holes in the circumferential side. The nozzle is mounted at the second end of the connecting pipeline; the first end of the central connecting rod extends into the nozzle and is fixedly connected with the second end of the connecting pipeline, and a convex part is arranged at the first end of the central connecting rod and forms a slit with the nozzle; the resonance cavity is installed at the second end of the central connecting rod. Acoustic waves with high sound pressure levels are generated, under the action of a flow field of the acoustic waves with the high sound pressure levels, tiny particles (pm10 or below) in the air can move relatively, wherein agglomeration is generated due to mutual collision between the particles, so that large particles are formed, and rapid deposition is achieved.

The invention relates to an MEMS ultrasonic transducer technology, and in particular to an MEMS piezoelectric ultrasonic transducer with a horn structure. The transducer comprises an MEMS piezoelectric ultrasonic transducer and a horn-shaped silicon structure, wherein the horn-shaped silicon structure is bonded on the upper surface or the lower surface of the MEMS piezoelectric ultrasonic transducer. A cavity in the horn-shaped silicon structure forms at least one sound wave guide pipe. Each sound wave guide pipe comprises at least two steps. Each step comprises a step sound pipe. The sectional area of each step sound pipe is gradually increased to form a horn-shaped cavity. Each horn-shaped cavity can amplify sound waves generated by the MEMS piezoelectric ultrasonic transducer. In addition, sound waves generated by the back of the MEMS piezoelectric ultrasonic transducer can be conducted to the top of the MEMS piezoelectric ultrasonic transducer and are overlapped with sound waves generated by the top of the MEMS piezoelectric ultrasonic transducer for transmission, so that the intensity of the sound waves generated by the ultrasonic transducer is further improved. According to the device, the intensity of the sound waves generated by the MEMS ultrasonic transducer can be enhanced, and the energy conversion efficiency of the MEMS piezoelectric ultrasonic transducer is improved.

A Helmholz resonator loudspeaker having a capsule shape with substantial improvements over the existing art, including an improved way of mounting a driver on a tubular section, by having a gradual and continuous curved surface to connect the front of the driver to the tubular section without abrupt changes in geometry, thus creating an inverted horn; an improved way of mounting a resonator tube through one or both of the capsule ends to allow for optimum placement and reduction of curvature in the resonator tube; and ways to make a physical connection between two bass drivers mounted on opposing longitudinal sides of a tubular section in order to cancel out reaction forces.

The invention provides a horn-shaped compression spring. The horn-shaped compression spring comprises a spring body, the spring body is formed by curling and overlaying metal wires, the cross section of the metal wires is round, the spring body is of a horn-shaped structure, the upper end of the spring body is a cylindrical part, and the lower end of the spring body is a cone-frustum-shaped part. The compression spring is changed to be of a horn shape, the contact area between the compression spring and an opponent is increased so as to increase the evenness of load stress, and it is avoided that the compression spring deforms because of loads, and performance of the compression is reduced because of bending.

The invention discloses a dual-drive sounding structure, a dual-function earphone and a control method of the dual-drive sounding structure. A double-drive type sound production structure comprises avibrator structure used for bone conduction sound and a horn structure used for air conduction sound. The loudspeaker further comprises a magnetic conductive connecting piece arranged between the oscillator structure and the horn structure. The magnetic conductive connecting piece is provided with an oscillator side cavity used for embedding the oscillator structure and a horn side cavity used forembedding the horn structure. According to the loudspeaker, the magnetic conductive connecting piece is adopted, and the oscillator structure and the loudspeaker structure are combined together to form an integral structure, so that the loudspeaker is simple in structure and has the sense of wholeness. Besides, the oscillator structure and the horn structure are arranged back to back, and when the loudspeaker is used, audios are output in opposite directions and do not interfere with each other. In addition, the vibrator inner cover and the horn shell form the connecting groove, so that the installation is easy, and the maintenance is convenient. According to the dual-function earphone, the sound guide hole is formed in the side edge, close to the earhole, of the horn shell, so that a sound path of horn playing can be converted to face the earhole, and the horn can be played into the earhole more easily.

A multifunctional mobile pull rod speaker comprises a speaker body, wherein a horn and a control panel are externally arranged on the speaker body, and a speaker control system is arranged inside thespeaker body; the speaker control system includes a power supply module, a signal input module, a signal digital signal processor (DSP) processing module, an MCU controller, a wireless entertainment module and a power amplifier; the signal DSP processing module includes an analog-to-digital converter (ADC), a DSP and a digital-to-analog converter (DAC) that are sequentially connected, and the signal DSP processing module is separately connected with the signal input module, the MCU controller and the power amplifier. According to the multifunctional mobile pull rod speaker provided by the invention, the DSP is taken as the core, and the input of guitars and other musical instruments, karaoke playback, Bluetooth / U disk / TF card playback, APP control of smart phones and tablet computers, andother functions can be achieved; and the multifunctional mobile pull rod speaker is convenient to use, has novel and diverse functions, has better entertainment than existing mobile speakers, and canfully meet the requirements of users for multifunctional high-performance mobile speaker equipment.