34results about How to "Soft voice" patented technology

There is provided a golf club head that produces a loud hitting sound satisfying the golfer even if the volume of the golf club head having a hollow structure is increased to at least about 400 cc. A golf club head 1 having a hollow structure comprises a face part 2, a side part 3 comprising a back side, a sole part 4, a crown part 5, and a hosel part 9 having a shaft insertion hole, and the crown part 5. The crown part comprises a thick region 6 and a thin region 8. The thick region 6 extends through a distance WA of at least about 20 mm from the center axis line C of the shaft insertion hole toward the highest point T of the crown part 5 and extends through a distance WB of at least about 30 mm from the center axis line C of the shaft insertion hole toward the back side so that the crown part 5 has the first-order natural frequency of at least about 3000 Hz.

A microwave heating exhaust packaging bag, the bag body includes a base material and a polyolefin material with cohesive peeling effect, the polyolefin material with cohesive peeling effect includes a corona layer, a core layer and a heat sealing layer. The heat seal layer is made of 85% polypropylene, 10% polyethylene and 5% vinyl elastomer in mass percent. The microwave heating exhaust packaging bag of the present invention has soft sound when the steam bursts the exhaust port, and has a good consumption experience. 60N, after sterilization at a high temperature of 135°C, the bag will not break; the sealing strength of the exhaust port is different, the exhaust time is controllable, the water is 180g, the same weight of water, 40-60s under the same microwave power conditions; the microwave heating exhaust of the present invention The air packaging bag also has high barrier properties. Combined with alumina films of different barrier grades, the maximum oxygen transmission and water vapor transmission can be within 0.5.

Disclosed is an apparatus for extending a bandwidth of a sound signal. The apparatus includes a database that stores predetermined training information as a result of at least one of Gaussian mixture model (GMM) training and hidden Markov model (HMM) training; a modified discrete cosine transform (MDCT) transformer that transforms a first band signal through MDCT, a feature extractor that extracts a feature parameter of the first band signal from an MDCT coefficient output from the MDCT transformer; an extender that provides an extended MDCT coefficient for a second band signal based on the MDCT coefficient of the first band signal output from the MDCT transformer, a subband energy estimator that estimates subband energy of the second band signal with reference to information stored in the database based on the feature parameter.

The invention discloses an automobile instrument shell and a backlight module. The backlight module comprises an anti-surge circuit, a buzzer drive circuit, a comprehensive data display circuit, a backlight adjustable circuit, an expansion indication lamp drive circuit, an anti-static device and a CPU. The output end of the anti-surge circuit is connected with the power input end of the CPU, the power input end of the buzzer drive circuit, the power input end of the comprehensive data display circuit, the power input end of the backlight adjustable circuit and the power input end of the expansion indication lamp drive circuit. The signal output end of the comprehensive data display circuit is connected with the signal input end of the backlight adjustable circuit, the buzzer signal output end of the comprehensive data display circuit is connected with the signal input end of the buzzer drive circuit, the indication lamp signal output end of the comprehensive data display circuit is connected with the signal input end of the expansion indication lamp drive circuit, and the signal output end of the expansion indication lamp drive circuit is connected with the signal input end of the backlight adjustable circuit.

Disclosed is a music bell vibrating plate machining technology and a special tool. The music bell vibrating plate machining technology comprises the following steps that traditional polyester grinding wheel cutting machining is replaced with special tool combined milling cutters, firstly, cutting machining is conducted on a vibrating plate blank, then heat treatment is conducted on the vibrating plate blank, traditional machining procedures of a vibrating plate is changed radically, and the difficult problem that after plate cutting, the heat treatment is conducted, and all voice keys are easy to deform in the heat treatment process is solved. According to the music bell vibrating plate machining technology, by adopting a technology method that the double-plate integrated vibrating plate blank is punched by a punching machine and machined, cutting machining is conducted on the double-plate integrated vibrating plate blank by adopting the combined milling cutters, all the voice keys and chamfering areas are machined, it is ensured that the width of a cutting seam is 0.25 millimeter, the precision of the center distances of all the voice keys reaches 0.9+-0.005 millimeter, the rigidity of the vibrating plate is always kept 54+-1 degrees, each set of combined milling cutter can machine and produce 2-3 ten thousand vibrating plates, frequent replacement of tools is reduced, the work efficiency is improved, the precision of products and the stability of quality are ensured, voice of the vibrating plate is soft, pleasant to the ear and standard, and the quality and productivity of music bells are improved greatly.

The invention discloses a method for preparing a biological vibrating diaphragm of an earphone through bladder glue, belongs to the technical field of earphone diaphragms, and can solve a problem thatconventional earphone diaphragm is liable to cause the distortion, is poor in detail resolution of sound, the types of the earphone vibrating diaphragms made of biological materials are limited and the price is high. The method comprises the five steps: glue preparing, glue hitting, glue liquid extraction, concentration and diaphragm forming. The method is simple in technology, and is low in cost.

The invention discloses a sound prompt and alarm system based on a car audio system. A car reversing radar sends a detection signal to a car meter, and the meter sends an alarm signal to the sound through CAN, and the sound uses a loudspeaker to give an alarm. Under the premise of not changing the current electronic structure and increasing the cost, the present invention uses the in-vehicle entertainment system to alarm related sounds, and the in-vehicle audio system has better speaker effects and DSP sound effect processing software with a larger adjustable range. To remind the driver at the same time, make the sound softer, sweeter and more pleasing to the ear. Different alarm functions are alarmed by speakers in different positions. Users can easily determine which functional module has a problem and is sending out a warning / prompt sound. At the same time, it can reduce the probability of accidents caused by frequent lowering of the driver's head.

The invention relates to the technical field of loudspeakers, in particular to a moving-coil piezoelectric composite loudspeaker. The moving coil piezoelectric composite speaker includes a housing and a support plate, the housing is provided with a sound outlet, the support plate is arranged inside the housing, and the support plate separates the housing into dynamic A coil cavity and a piezoelectric cavity, the moving coil cavity communicates with the sound outlet; a moving coil unit is arranged inside the moving coil cavity, and a piezoelectric For the vibrator, the support plate is provided with a sound guide hole, and the piezoelectric cavity communicates with the moving coil cavity through the sound guide hole. In the present invention, the piezoelectric vibrator is added to the original dynamic speaker, and the piezoelectric vibrator is used to compensate the sound effect and sound quality of the dynamic speaker at high frequencies, so that the dynamic unit and the piezoelectric vibrator vibrate and sound at the same time. Resonance is formed to widen the frequency response range and improve the user's listening experience.