34 results about "Full-range speaker" patented technology

An acoustic control system for an electronic musical instrument, which can obtain optimal acoustic characteristics irrespective of whether or not a low range speaker is attached to a body thereof. A piano body has high range and mid range speakers. A low range speaker is removable from the body. A stand-excluding switch designates a first speaker-use mode for using the high range and mid range speakers alone, and a stand-including switch designates a both speaker-use mode for using both the high range and mid range speakers and the low range speaker. A ROM stores stand-excluding and stand-including factors for setting acoustic characteristics in the two modes, respectively. A CPU reads one of the factors, which corresponds to the mode designated by the stand-excluding or stand-including switch. A tone generator circuit generates a musical tone signal to be reproduced in one of the modes, based on the read factor.

An edge-driven diaphragm loudspeaker driver is configured such that the suspension system of the driver is connected to the voice coil rather than to the diaphragm. Thus, the diaphragm in the loudspeaker is free of suspension systems connected to or extending from the diaphragm. By attaching the surround suspension to the voice coil rather than to the diaphragm, the diaphragm is isolated from the influence of spurious high frequency vibrations in the suspension system, thereby increasing the performance of the loudspeaker at high frequencies. The loudspeaker driver configuration also provides for a longer excursion range for the voice coil/diaphragm assembly, which allows for the driver components to be more accurately aligned during manufacturing, thereby enabling the loudspeaker driver to operate as a full range unit by producing low output frequencies.

Contemplated planar magnetic transducers include a magnet and diaphragm arrangement such that substantially homogenous vertical and high horizontal magnetic flux density is realized in the inter-magnet space. Most preferably, the diaphragm is a tensioned polymer membrane in which the voice coil covers a significant portion of the active portion of the membrane, and the magnets are rare-earth metal-type magnets of ultra-high strength. Particularly preferred planar magnetic transducers allow for exceptionally large excursion of the diaphragm in a substantially homogenous magnetic field at virtually no distortion, thereby providing heretofore unachieved sound pressure levels. Arrays of such and other transducers are disclosed that provide a full-range speaker with acoustic plane source characteristics.

The invention discloses a combined coaxial full-frequency loudspeaker in a double-transduction mode, which includes a magnetic circuit structure, a voice coil is provided on the upper part of the magnetic circuit structure, and a vibration plate is provided at the output end of the voice coil, and the vibration plate is A disc made of piezoelectric material is used, and the disc is fixed on the magnetic circuit structure through a ring and a washer. The present invention combines the dynamic speaker and the piezoelectric speaker, and uses the transducer device of the piezoelectric speaker - the piezoelectric disc as the vibrating plate (cone) of the dynamic speaker to work in the low frequency band as an electrodynamic transducer. Working with piezoelectric transducers in the high-frequency band, a new type of unique combined full-range speaker is formed. Full frequency band work. The invention can be widely used in the field of loudspeakers.

The invention relates to a multimedia sound system with a musical audio digital interface. The multimedia sound system comprises at least a USB/IEEE1394 interface, a USB/IEEE1394 external sound card, a group of D-typed or T-typed audio power amplifier chips or a group of control circuits or microprocessor chips that are matched with the sound card and the power amplifier, a PCB plate and at least a pair of dual channel sound boxes. Each sound box is at least provided with a full range speaker with double coils and double magnetic gaps or with a plurality of coils and a plurality of magnetic gaps with resistance loading property and approximate resistance loading property, wherein, the aperture is less than 7 inches, and only one conical single vibrating diaphragm is configured in the full range speaker; therefore, various high-fidelity or monitoring multimedia sound systems is formed, wherein, the working voltage is equal to or less than 5.25V and the output power is equal to or more than 2*1W under 3-4 ohm of loading.

An ultra-thin planar magnetic film full-frequency speaker comprises a vibration system, a magnetic system, a frame, and an acoustic foam. The vibration system and the magnetic system are received and fixed in the interior of the frame. The vibration system comprises a vibration film and a planar voice coil, the vibration film forming a contiguous inward recess structure in the middle thereof, the planar voice coil being provided with a bar-like aperture, and the planar voice coil being adhered and fixed to the vibration film The magnetic system comprises a U-shaped soft iron and a bar-shaped magnet, the bar-shaped magnet being disposed above the U-shaped soft iron and disposed beneath the bar-shaped aperture, the U-shaped soft iron being connected to the frame by means of injection molding, and the acoustic foam being adhered to a bottom face of the U-shaped soft iron.

Sound reproduction systems are described that have superior response to pure bass frequency signals from musical instruments such as electric bass guitar and string bass. A first amplifier drives a low frequency woofer and a second amplifier drives a full range speaker system. The bass component of the audio signal handled by the second amplifier is monitored and progressively compressed as the bass energy approaches a critical level that may damage one or more elements of the full range speaker. Speaker protection devices are also described that passively limit damaging pulses into speakers typically caused by plugging in equipment.

The invention provides a no-diaphragm portable full range speaker of same-phase radiation, which provides a novel train of thought for the design of a portable audio device. The speaker mainly comprises a magnetic circuit system, a voice coil and a vibration transmission system, wherein the magnetic circuit system is in a conventional internal magnetic type magnetic circuit structure; and the vibration transmission system consists of a metal spider with large elastic modulus and a vibration transmission piece. After passing through an alternating audio signal, the voice coil is affected by electromagnetic force in a magnetic field to do alternating motion and push the vibration transmission system to vibrate; and when being attached to the surface of a hard medium, the vibration transmission system transmits the vibration information to the hard medium so as to generate irregular vibration on the surface of the hard medium and radiate voice. The invention overcomes the defects that a conventional electrodynamic type cone speaker has reverse-phase radiation voice at a low frequency range and a flat panel speaker needs a large diaphragm, and solves the problem that a magnetostriction type speaker has low efficiency-cost ratio, and the generated sound wave has no directivity, wide frequency response range and low distortion.

A full-range speaker device is provided herein that can deliver high-fidelity trebles. The major feature of the present invention lies in that the voice coil is sandwiched between two or more concentric bobbins. As such, out of the same back-and-forth movement of the bobbins, different ranges of sounds are produced through separate bobbins by the diaphragms attached to the bobbins, respectively.

The invention discloses directional sound boxes in multi-unit arc arrangement. At least two loudspeakers or at least two sound boxes are arranged in arc with the radian less than 180 degrees. The angle between the arc and the ground is from 0 degree to 90 degrees. According to the invention, full-range loudspeakers or sound boxes of the same type are fixedly arranged in arc, so as to produce sound focusing; sound waves are gathered in a listening area in a specified direction, so as to realize a sound directional effect; sound pressure level does not attenuate with distance change under the focusing effect of multi-unit arc arrangement; oppositely, the sound pressure level rises at an intersection point; the sound pressure of the listening area is met, and at the same time the sound pressure of a non-listening area becomes smaller as the non-listening area is more and more far away from the listening area; and the sound waves carry out directional work in the specified direction. In an actual application process, the number of units of the loudspeakers or small sound boxes can be selected according to the requirement of a directional effect.

A full range loudspeaker, comprising a frame with a membrane secured onto said frame and a piezoelectric actuator attached on said membrane and able to be driven over the full audible frequency range.

The system consists of 2 large speakers (1A &1B), and 2 small full range speakers (2A &2B) having about half the active cone area as the large speakers, mounted in a dual chamber enclosure (3) with the large speaker (1A) mounted on an internal baffle (4) forming a partition for a large bass reflex chamber (3A), with the large speaker (1B) mounted in common direction thereto immediately in front thereof together with the 2 smaller speakers (2A &2B) mounted adjacent thereto on a front baffle (7) forming a small tympanic chamber (3B) by and with the large speakers (1A &1B) and small speaker (2B) electrically connected to operate in common acoustic phase to each other with the other small speaker (2A) connected to operate in opposing phase thereto.

The invention discloses a wireless network audio high-fidelity streaming media player, which comprises a host PCB arranged inside an upright trapezoidal player, wherein the upright trapezoidal player comprises an super bass chamber arranged at the bottom end; a DSP data processing module, and a lossless audio decoding unit, a DAC conversion module and a virtual bass module which are connected with the DSP data processing module are integrated on the host PCB; the lossless audio decoding unit is connected with an input module; the DAC conversion module is connected with an audio processing circuit, a full-frequency digital amplifier and a full-frequency loudspeaker in sequence; the virtual bass module is connected with a low-pass filtering circuit and a mega base digital amplifier in sequence; the mega base digital amplifier is connected with a bass loudspeaker arranged on one side of the super bass chamber; and the DAC conversion module is connected with the virtual bass module. The wireless network audio high-fidelity streaming media player combines the upright trapezoidal loudspeaker structure and circuit design with the super bass chamber design, so that the high-fidelity sound effect is achieved.

The invention discloses a high-fidelity multipurpose loudspeaker box system which comprises a low-pitch loudspeaker, a full-frequency loudspeaker, a low-pitch box body, a middle-high-pitch loudspeaker, a low-pitch frequency divider and a loudspeaker box base. The low-pitch loudspeaker and the low-pitch frequency divider are connected through a circuit, the low-pitch frequency divider is arranged in the loudspeaker box base, and the low-pitch loudspeaker and the full-frequency loudspeaker are both connected with a binding post on the loudspeaker box base. The low-pitch box body is provided with a straight through cavity, one end of the cavity is open, the other end of the cavity is connected to the loudspeaker box base, and the low-pitch loudspeaker is arranged at the opening formed one end of the cavity. The middle-high-pitch loudspeaker comprises a semi-circular bent pipe and a conical pipe, one end of the semi-circular bent pipe is connected with the upper portion of the low-pitch loudspeaker, the other end of the semi-circular bent pipe is communicated with the opening formed in the smaller end of the conical pipe arranged horizontally, the conical pipe is located above the opened end of the low-pitch box body, and the full-frequency loudspeaker is arranged at the opening formed in the large end of the conical pipe. The high-fidelity multipurpose loudspeaker box system reduces the influence of environmental acoustic conditions on a listening effect and is suitable for usage in a home environment on which strict acoustic treatment is not conducted.

The invention relates to an adjustable full-frequency horn, which includes a base, on which a guide tube is set, and a coil is set inside the guide tube, and the guide tube and the coil are connected by threads, and the end of the coil is provided with a A bottom plate, a support plate is arranged on the bottom plate, a top plate is arranged between the ends of the support plate, a full-frequency speaker is provided on the lower part of the top plate, a hanging ring is provided on the top of the full-frequency speaker, and the top plate A limit ring is provided, and the limit ring is sleeved with the hanging ring. The coiled tube of the present invention can realize horizontal rotation adjustment around the guide tube, so that the horizontal rotation adjustment of the full-frequency horn is convenient, and the adjustment flexibility is greatly improved.

The invention discloses a vertical full-band ceramic sound box. The full-band ceramic sound box comprises a full-frequency loudspeaker with a conical disc, a ceramic shell, a ceramic cone and a support frame, the ceramic shell is mounted at the top of the support frame; the ceramic cone is installed on the supporting frame in the mode that the small outer diameter end faces upwards and the large outer diameter end faces downwards and located below the ceramic shell. The ceramic shell is provided with a mounting cavity and a first cavity for communicating the mounting cavity with the outside; the mounting cavity is positioned at the bottom of the ceramic shell; the ceramic cone is provided with a second cavity penetrating through the upper and lower ends; a through hole communicated with the mounting cavity and the second cavity is formed in the top of the supporting frame, and the full-frequency loudspeaker is mounted in the mounting cavity in the mode that the opening of the conical disc of the full-frequency loudspeaker faces upwards, so that low-frequency sound waves of the full-frequency loudspeaker are diffused towards the first cavity, and medium-high-frequency sound waves ofthe full-frequency loudspeaker are diffused towards the second cavity. The vertical full-band ceramic sound box is high in density, good in rigidity and beautiful in tone.

The invention relates to a moving coil electric loudspeaker which is an elastic system composed of a magnetic circuit, a voice coil, a centering support piece, a vibration basin, a suspension edge anda peripheral support, and no single loudspeaker can produce sound in full audio frequency in the prior art. A coaxial full-frequency loudspeaker in the prior art is only a kind of combined loudspeakers, and is formed by coaxially installing and combining a mid-bass loudspeaker, a high-pitch loudspeaker and a frequency division capacitor. The full-frequency loudspeaker is a full-frequency loudspeaker in a real sense, only one loudspeaker is arranged, and the innovation point of the full-frequency loudspeaker is that a full-frequency function is realized through improvement of a vibration basinof a mid-bass loudspeaker. Another aspect of the invention relates to hedging installation of the loudspeaker on the sound box body, and the prior art is not researched in the aspect. According to opposite impact installation, mutual offset generated by the loudspeakers installed back to back is utilized, so that sound dyeing of the box body and sound flow standing waves in the box body are greatly reduced.

The invention discloses a multi-purpose full-frequency loudspeaker sound box. The multi-purpose full-frequency loudspeaker sound box comprises a full-frequency loudspeaker, a loudspeaker vibration cavity and a base sealing plate; the loudspeaker vibration cavity is provided with an upper end opening and a lower end opening; the full-frequency loudspeaker is arranged at the upper end opening; the base sealing plate is arranged at the lower end opening; the loudspeaker vibration cavity includes a contraction section and an expansion section; the inner diameter of the junction of the constriction section and the expansion section is the minimum inner diameter of the loudspeaker vibration cavity; the multi-purpose full-frequency loudspeaker sound box further comprises an acoustic wave refraction plate; and the acoustic wave refraction plate is obliquely arranged above the upper end opening. According to the loudspeaker vibration cavity, the Venturi tube effect is utilized so as to significantly enhance the volume feeling of ultra-low frequency, the descending depth of low frequency and reaction speed; the full-frequency loudspeaker, facing upwards, is mounted vertically on the top of the constriction-expansion tubular cavity with no panel adopted, so that the full-frequency loudspeaker can emit sound in a 360-degree diffusion manner and in the form of a point sound source; the increase of the width and depth of a sound field can be benefitted; the acoustic wave refraction plate horizontally guides part of acoustic waves emitted by the loudspeaker to a listener; and acoustic image positioning is more accurate and clear, and immersive experience can be enhanced.

The invention relates to a method for manufacturing a high-fidelity sound box. Different from a high-fidelity sound box of a traditional sound box technology, bass, mid-bass and high-pitch loudspeakers used in the prior art are abandoned; two full-frequency loudspeakers provided by a patent 201910306267.6 and an electromagnetic damping braking multi-flow-hole high-acoustic-resistance pure bass loudspeaker provided by a patent ZL201610835543.4 are adopted, and the full-frequency loudspeakers and the electromagnetic damping braking multi-flow-hole high-acoustic-resistance pure bass loudspeaker are opposite. In addition, a frequency divider in the prior art is abandoned and replaced by an inductance-capacitance buffer circuit. Another innovation of the invention is to increase the acoustic resistance of the sound box body to the maximum extent.