41 results about "Double voice" patented technology

It is possible to provide smooth communication between a PoC system as a semi-double communication system and a general telephone as a full-double communication system by solving the difference between the basic communication concepts. The communication is realized by a communication system including: a communication control device for performing conversion between a communication control signal applied in a telephone network and a communication control signal applied in the PoC system; and a voice signal processing device for performing conversion between the full-double voice signal applied in the telephone network and the semi-double voice signal applied in the Poc system.

The invention relates to a double-voice coil moving-coil loudspeaker which comprises a bracket; a U-shaped cup is fixed in the bracket; a ring-shaped vibrating diaphragm is fixed on the bracket at the position of the U-shaped cup; the U-shaped cup is internally provided with a ring-shaped groove which is internally provided with a magnet; a ring-shaped washer is arranged on the upper surface of the magnet; gaps are arranged between the side wall of the ring-shaped groove and the ring-shaped washer; a large voice coil and a small voice coil are respectively arranged in the gaps; and the ring-shaped vibrating diaphragm covers the ring-shaped washer, and the upper ends of the large voice coil and the small voice coil are fixed with the ring-shaped vibrating diaphragm. The double-voice coil moving-coil loudspeaker is characterized in that the ring-shaped washer is provided with a first vent hole; the U-shaped cup is provided with a second vent hole; and the first vent hole is communicated with the second vent hole for releasing air. The double-voice coil moving-coil loudspeaker has the beneficial effects that 1, the U-shaped cup and the washer are respectively provided with a pressure-relief hole, so that the problem of distortion caused by the air compression at the inner side of the diaphragm can be effectively solved, and the sound quality is further improved; and 2, the double-voice coil moving-coil loudspeaker is simple in structure and beneficial to production, reduces the production cost, and is beneficial to improving the product market competitive power.

The invention discloses a dual-drive full-frequency bone conduction loudspeaker, and relates to the technical field of bone conduction audio transmission. The problems of lack of sound low-frequency output and high F0 value are solved. The dual-drive full-frequency bone conduction loudspeaker specifically comprises a magnet part, a sound body part and an elastic sheet supporting assembly part, themagnet part comprises U-shaped iron, a magnet, a washer sheet, an auxiliary magnet and an auxiliary washer sheet, and the U-shaped iron, the magnet, the washer sheet, the auxiliary magnet and the auxiliary washer sheet adopt a double-magnetic-circuit design; the voice body part comprises a voice coil, a fixing frame, an auxiliary voice coil and an auxiliary fixing frame. According to the invention, the structural design characteristics of double voice coils and double magnetic circuits are adopted; the vibration amplitude of the product can be increased; therefore, the sensitivity of sound and the effect of bass are effectively improved, the bass of the product is thicker and more comfortable, the elastic sheet supporting assembly part adopts a suspension supporting design, and the connected elastic sheet can be designed and modified according to requirements so as to change the amplitude of the elastic sheet supporting assembly part in the cavity and achieve the effect required by aclient.

The invention discloses a full-frequency loudspeaker provided with double voice coils, which comprises a loudspeaker bracket, a loudspeaker diaphragm, a dustproof cap, a spring wave, the voice coils, a magnetic circuit structure and a base bracket, wherein the loudspeaker diaphragm, the dustproof cap and the spring wave are installed on the loudspeaker bracket; the voice coils are used for driving the diaphragm to vibrate; the loudspeaker bracket and the magnetic circuit structure are installed on the base bracket; the two voice coils comprise a voice coil I and a voice coil II which are wound along the reverse direction; the magnetic circuit structure is a radial magnetic circuit structure which comprises a magnetic conductor and a permanent magnet; the magnetic conductor takes on a ring shape and is provided with a ring-shaped groove in the middle; and the permanent magnet takes on a ring shape and is arranged in the ring-shaped groove of the magnetic conductor in a suspension way.

The invention relates to the field of loudspeakers and provides a loudspeaker with double magnetic circuits and double voice diaphragms. The loudspeaker with double magnetic circuits and double voicediaphragms comprises a PCBA, an outer shell and a top protective cover; the loudspeaker with double magnetic circuits and double voice diaphragms is wholly like a lug boss and is provided with an upper bracket I and a lower bracket II which are assembled and fixed with a shell; and the loudspeaker with double magnetic circuits and double voice diaphragms comprises two groups of voice coils, two groups of voice diaphragms and two groups of magnet structures. As the structural design with double magnetic circuits and double voice diaphragms is adopted to control a low frequency and a high frequency respectively, the high-voice and low-voice diaphragms vibrate at the same time when an audio is input, and the high frequency and the low frequency complement each other so as to enable the low frequency to be simple and honest and the high frequency to be clear. In addition, as the outer bracket structure is made of plastic, the loudspeaker with double magnetic circuits and double voice diaphragms is low in production cost, simple in technology and high in production efficiency.

The invention provides an earphone with double voice coils. The earphone comprises a housing, a control circuit and a moving coil loudspeaker for receiving a signal output by the control circuit, wherein the moving coil loudspeaker comprises a first voice coil, a second voice coil and a coil sleeve, and the control circuit comprises a voice collecting circuit, a preamplifier, an LC oscillating circuit and a phase circuit, the voice collecting circuit receives a voice signal transmitted from the outside, the voice collecting circuit outputs the voice signal to the preamplifier, the preamplifieroutputs a voice amplifying signal to the phase circuit via the LC oscillating circuit, an audio output end of the phase circuit outputs an inverted voice signal to the first voice coil, and the second voice coil receives an audio signal transmitted by a mobile terminal. The earphone with double voice coils provided by the invention can change the sound wave output phase, and can effectively control the accuracy of adjusting the noise phase, thereby solving the noise problem so as to provide pure music to users without noise interference.

The invention relates to the technical field of voice coils, in particular to a high-efficiency combination structure of two reverse voice coils. The high-efficiency combination structure of two reverse voice coils includes a flexible circuit board, an upper ring voice coil, and a lower ring voice coil. The upper ring voice coil and the lower ring voice coil are respectively bonded on the upper and lower sides of the flexible circuit board. The ring includes a first long lead-out line and a first short lead-out line oppositely arranged, and the lower annular voice coil includes a second long lead-out line and a second short lead-out line oppositely arranged, and the flexible circuit board is provided with external terminals, Four outlet avoidances, four solder joints, and four copper-clad wires. The present invention cleverly uses the combination of double voice coils and flexible circuit boards, and uses two identical voice coils to be bonded and welded on the flexible circuit board to solve the problem of serial connection of voice coil wire ends and the external connection of voice coil lead wires , At the same time, it also avoids the problem that the traditional enameled wire lead-out wire is easily involved when it is drawn out, which plays a very good role in guaranteeing the performance of the product.

The invention provides a telephone receiver. The telephone receiver comprises a double-voice coil loudspeaker, an upper cover plate and a microphone, wherein the double-voice coil loudspeaker comprises a vibrating diaphragm, a first voice coil, a second voice coil and a magnetic driving device, the first voice coil is combined with the vibrating diaphragm and is used for receiving a first signal to generate first magnetic force, the second voice coil is combined with the vibrating diaphragm and used for receiving a second signal to generate second magnetic force, and the magnetic driving device provides a fixed magnetic field to interact with the first magnetic force and the second magnetic force, so that the first voice coil and the second voice coil drive the vibrating diaphragm to vibrate, the upper portion of the double-voice coil loudspeaker is covered with the upper cover plate, a hole is formed in the middle of the upper cover, the microphone is arranged on the edge of the hole of the upper cover plate, and the central axis of the microphone is perpendicular to the axis of the hole. The invention further provides a noise elimination system and a noise elimination method with the telephone receiver. The telephone receiver, the noise elimination system and the noise elimination method have a better noise elimination effect.

The invention relates to a double voice recognition method of a service robot sharing one set of microphone array. The double voice recognition method is characterized in that one set of microphone array and two sets of voice recognition systems are installed on a body of the service robot, the microphone array is an annular microphone array or a linear microphone array, and the two sets of voice recognition systems are an off-line voice recognition system and an online voice recognition system. The operating method is that the microphone array sends acquired voice information to the two sets of voice recognition systems simultaneously, the two sets of voice recognition systems are enabled to perform voice recognition respectively and convert the voice into texts, and corresponding operations are executed according to matching conditions of the content of the respectively acquired texts and an off-line voice text library which includes daily conversations, command words and smart home control instructions; if the acquired texts acquired by recognition of the off-line voice recognition system are matched with the off-line voice text library, off-line voice recognition is utilized to perform interaction; and if the texts acquired by recognition of the off-line voice recognition system are not matched with the off-line voice text library, online voice recognition is utilized to perform interaction.

The invention provides a double-voice-coil double-magnetic-circuit loudspeaker, and belongs to the field of loudspeaker structures. The loudspeaker comprises a first magnetic circuit, a second magnetic circuit, a first voice diaphragm assembly and a second voice diaphragm assembly, the first voice diaphragm assembly and the second voice diaphragm assembly are fixedly connected and arranged betweenthe first magnetic circuit and the second magnetic circuit, and the loudspeaker further comprises a dustproof net arranged on the outer side of the first magnetic circuit and a heat dissipation rearcover arranged on the outer side of the second magnetic circuit. The beneficial effects of the invention are that the work efficiency and the power processing capability are greatly improved, and thehigh-frequency response and level are expanded; salient reduction of non-linear distortion.

The invention discloses a coaxial double-voice coil two-way adjustable low-frequency vibrating horn, which is characterized in that: the invention adopts a rear cover, a vibrating voice coil, a washer piece, a shrapnel fixing sleeve, a vibrating shrapnel, a cylindrical magnet sleeve, a ring magnet, T-shaped washer, bracket, voice coil, vibrating sound film, sound hole, center hole, concentric arc shrapnel strip, washer column head, back cover buckle slot, support ring plate, shrapnel slot, sound film bracket, PCB The lead plate and the tuning cotton constitute the independent structure of the voice coil of the vibration system and the voice coil of the sound system, which realizes the controllable and adjustable frequency and current intensity of the vibrator. The vibration voice coil and the voice coil work independently, and the vibration effect does not affect the sound effect of the speaker. , to meet the use requirements of two-way selection of vibration and / or non-vibration. It reasonably solves the problem that the vibration of the low-frequency vibrating horn in the prior art cannot be independently adjusted and switched, and the use requirement of two-way selection of vibration and non-vibration cannot be realized. The deficiencies of the prior art are overcome.

The invention relates to a moving coil loudspeaker, which includes a voice coil, a magnetic steel, a sound cone, a basin frame, a positioning ring, a magnetic conductor, and a connecting terminal, and adopts two voice coils, which are characterized in that: the two voice coils adopt Independent, two skeletons are wound separately; two voice coils are connected in reverse; the two voice coils are in the same direction and the same strong magnetic field; there is a closed mutual inductance coupling magnetic conduction circuit passing through the two voice coils; the two voice coils are installed in parallel or coaxial installation. The invention solves the problems of complex impedance characteristics of the speaker due to inductance and induced voltage in the voice coil of the traditional dynamic speaker, which causes distortion and difficulty in matching the impedance of the amplifier. The dynamic and static impedance characteristics are close to pure resistance, and have high sensitivity and high fidelity. Can be used in hi-fi speaker manufacturing.