15 results about "Voice amplifier" patented technology

1. The name of the design product: sound amplifier and charging compartment. 2. The use of the design product: for sound amplification, and charging compartment for storage. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combination state diagram.

The utility model provides a wireless intelligent monitoring device for a catenary switching station, which relates to the technical field of wireless mobile monitoring and comprises an industrial tablet computer, a 4G communication module, a power supply system and a voice power amplifier module. Wherein the power supply system is respectively connected with the industrial tablet computer, the 4G communication module and the voice power amplifier module, the industrial tablet computer is connected with the 4G communication module through the Ethernet, the industrial tablet computer is connected with the voice power amplifier module, and the 4G communication module is connected with the contact network switch centralized monitoring system screen. According to the utility model, the problems of poor monitoring capability and low efficiency of the centralized monitoring system for the overhead line system switch of the electrified railway are solved.

The utility model provides single-body type center equipment and a portable passive sound amplifier with a mobile power supply system. A monolithic center device includes a monolithic body having a top wall, a bottom wall, a front wall, a rear wall, and a pair of side walls defining a cavity within the monolithic body, the monolithic body having an internal power source and a set of electronics to achieve wired or wireless power charging capabilities. The front wall has an opening for receiving a base piece into the cavity of the unitary body, the base piece having a bottom surface and a locking ridge extending from the bottom surface. The unitary body has U-shaped or zig-zag sound tubes extending from the interior top surface of the top wall into the cavity defining a sound passage, and the unitary body has a front output grille surface to exit amplified sound waves from the unitary body.

The utility model provides an off-line voice control circuit breaker, which comprises a main control module, a relay control module, an off-line voice control module, a voice module, an MIC microphone module, a voice power amplifier module, an AC-DC module and a DC-DC module, and is characterized in that the off-line voice control module is used for identifying command words and keywords and is connected and communicated with a main control chip through a UART serial interface; free setting of overvoltage and undervoltage protection points is controlled, a user can simply and directly operate the circuit breaker without moving the circuit breaker, the operation mode is simpler and more convenient, the degree of freedom is high, meanwhile, high-voltage contact is avoided, and the operation risk is overcome.

This item is a sound amplifier that amplifies surrounding sounds.

The invention discloses a multi-sensor sound and vibration integrated testing device, and the device comprises a jig which is provided with a sound guide channel and a flexible sound guide cylinder, and the lower end of the flexible sound guide cylinder is in butt joint with the upper end of the sound guide channel; when the upper curved surface of the flexible sound guide cylinder is attached to the lower surface of the to-be-tested product, the sound guide channel forms a sealed space; the automatic pressing mechanism comprises a profiling pressing block and a pressing driving module used for driving the profiling pressing block to press the to-be-tested product, and the profiling pressing block is provided with a bone conduction sensor used for detecting vibration / sound generated when the to-be-tested product runs; the sound collection assembly comprises a first microphone which is arranged in the jig and is exposed in the sound guide channel, a sound amplifier which is arranged at the lower end of the sound guide channel, and a second microphone which is arranged at the output end of the sound amplifier; sound generated when the to-be-tested product runs is transmitted to the first microphone through the flexible sound guide cylinder and the sound guide channel so as to be received by the first microphone, and the sound is amplified by the sound amplifier and then received by the second microphone.

The utility model discloses a dynamic noise reduction bone conduction hearing aid comprising a microphone, the microphone is fixedly connected with a sound amplifier through a connecting line, the sound amplifier is fixedly connected with a bone conduction device through a connecting line, an anti-noise cover is arranged outside the microphone, the anti-noise cover is arranged in a mushroom shape, and the bone conduction device is fixedly connected with the sound amplifier through a connecting line. The microphone is fixedly sleeved with the anti-noise cover, first sound inlet holes are evenly formed in the side wall of the anti-noise cover, a plurality of second sound inlet holes are evenly formed in the side, close to the connecting line, of the anti-noise cover, a sound insulation ring is arranged between the microphone and the anti-noise cover, and the microphone is fixedly sleeved with the sound insulation ring. According to the bone conduction hearing aid, the problems that noise is inevitable in the using process of a traditional bone conduction hearing aid, for a hearing aid user, the noise can interfere with speech understanding, and the hearing aid effect is reduced are solved.

The invention is suitable for the technical field of voice signal amplifiers, and provides a voice signal amplification and propagation system, which comprises a signal pickup module, a signal preprocessing module, a power amplification module and a wireless propagation module, the voice signal amplification and propagation system is characterized in that the signal pickup module comprises a sound source positioning module, a real-time adaptive filtering module and a noise feature extraction module, 4-8 miniature microphone arrays are deployed on site, the miniature microphone arrays are in data connection with the signal pickup module, the voice signal amplification and propagation system further comprises a shell, the top of the shell is provided with a heat dissipation top block, and the heat dissipation top block is connected with the sound source positioning module. The shell is internally provided with a heat conduction assembly used for absorbing heat of the module, the heat conduction assembly comprises a built-in heat conduction plate, the heat conduction assembly is arranged, the heat conduction capability of the voice amplifier can be remarkably improved, a smaller temperature gradient and more uniform temperature distribution are achieved, and larger heat conduction enhancement and lower pressure drop loss are obtained; and the heat dissipation efficiency of the voice amplifier is ensured.

This item is a sound amplifier that amplifies surrounding sounds.

This product is a cartilage conduction type, behind-the-ear sound amplifier used to assist hearing in people with hearing loss, and is not inserted into the ear canal. This product can also be used as a hearing aid.

1. The name of the design product: open wireless sound amplifier. 2. The use of the design product: for assisting hearing. 3. The design points of the design product: the wireless sound pickup and the earphone speaker are separated. 4. The picture or photo that can best show the design points: assembly 1 perspective view 1.

The invention provides a hearing aid in the shape of a wireless earphone. The hearing aid is composed of an oval shell, an arc-shaped ball and a sound amplifier, wherein the oval shell forms a sound output unit facing the ear, and the arc-shaped ball is installed on the shell. A sound amplifier is used for amplifying a shell, the shell is provided with a receiver for outputting sound signals and an on-off switch, and the shell is vertically connected with the shell and located on the end side. There is provided a sound input unit including: a microphone that receives external sound from the sound input unit and transmits it to a sound amplifier; and a sleeve tip in which a rechargeable battery is mounted to supply power.

The utility model discloses a computer voice on-off device which comprises a box body, a fixing plate, a microphone, a sound amplifier, a main control board, an electronic switch and a voice control unit, the fixing plate is arranged on the back face of the box body, the microphone is arranged on the front portion of the box body, and the sound amplifier is arranged on the front portion of the box body. The sound amplifier, the electronic switch and the voice control unit are arranged on the main control board, the voice control unit is provided with a voice recognition module and a voice input module, and a microprocessor, a wireless communication module and a power management chip are integrated in the main control board. The computer has the beneficial effects that the on-off control of the computer is realized through the voice recognition technology, and the computer does not need to be turned on or off manually.

1. The name of the design product: sound amplifier (AYW07). 2. The use of the design product: pick up and amplify the environmental sound and output to the listener from the earphone. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model provides a stepping motor listening mechanism which comprises a positioning plate and a bottom plate, the positioning plate is connected with the bottom plate through a stand column, the positioning plate is used for positioning a motor, a listening probe is installed on the bottom plate, the listening probe is in contact with the motor, a probe is installed on the bottom plate, the probe is connected with a power-on needle of the motor, and the power-on needle is connected with the stand column. According to the sound listening mode, the interference of external environment noise on the sound listening result can be effectively reduced, the sound listening accuracy is high, a tester does not need to be in direct contact with the motor and only needs to sit in a specific place to test the operation sound of the motor through an earphone, and the test efficiency is improved. The labor intensity of testers is reduced, the listening efficiency is improved, the labor cost is saved, meanwhile, the testers do not need to be exposed in a noisy environment for a long time, the hearing health of the testers is protected, and the safety is high.