8 results about "Voice amplifier" patented technology

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.

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.

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 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.