A method for producing a diaphragm for an ultrasonic sensor. In the method, a diaphragm body made of metal material is first provided. Next, an external surface region of the diaphragm body is degreased. The external surface region of the diaphragm body is then pickled. To pre-activate the subsequently applied second passivation layer, a first passivation layer is also deposited on the external surface region as a first layer.

A vehicle horn sound output device is disclosed. A vehicle horn sound output device according to the present invention comprises: an operation switch for outputting a horn sound; a storage unit for storing sound types to be output as horn sounds; a touch input unit for displaying a horn setting screen such that, by touching the horn setting screen, at least one from among the sound type, the volume, and the sound quality is set; and a control unit for executing an application so as to output a horn setting screen to the touch input unit, retrieving a sound type stored in the storage unit according to a setting value input from the touch input unit, setting the volume and the sound quality, and outputting a horn sound through a horn speaker if the operation switch is operated.

A method of playing a virtual after-burn sound in an electric vehicle is provided. The method includes acquiring driver tendency information generated based on information of music played in a mobile phone and collecting driving variable information for playing a virtual sound during operation of the electric vehicle. Additionally, characteristics of a virtual after-burn sound are determined based on the collected driving variable information. The characteristics of the virtual after-burn sound are corrected according to the acquired driver tendency information. An after-burn signal is generated for playing the virtual after-burn sound based on information about the corrected characteristics of the virtual after-burn sound and operation of sound equipment is adjusted according to the created after-burn signal such that a virtual after-burn sound discriminated according to the driver tendency is played and output from the sound equipment.

Horn systems having a first bracket, a second bracket, a compressor and a horn are described. The horns may have a sound unit and a bell with tubing connecting the compressor and the sound unit. The tapered neck of the horn's bell may be secured by the second bracket surrounding the tapered neck and fixing it in position when the second bracket is secured relative to the first bracket.

An article of furniture includes a cushioned seating portion, a rigid panel configured adjacent to the cushioned seating portion, a first group of exciters configured on a surface of the rigid panel, and a controller communicatively coupled to the first and second plurality of exciters.

An article of furniture includes a cushioned seating portion, a rigid panel configured adjacent to the cushioned seating portion, a first group of exciters configured on a surface of the rigid panel, and a controller communicatively coupled to the first and second plurality of exciters.

An air pulse generating element is disclosed. The air pulse generating element includes a membrane, actuated according to a driving signal; a plate, wherein a chamber is formed between the plate and the membrane; wherein during a first phase of the driving signal, the membrane is actuated to change a volume within the chamber to generate an air pulse; wherein during a second phase of the driving signal, the membrane is actuated such that a gap is temporarily formed; wherein the temporarily formed gap is configured to provide a temporary air shunt to accelerate an air balancing process between a first air pressure at a first side of the membrane and a second air pressure at a second side of the membrane.

The invention is a single piece molded toy that is shaped like an animal wherein the center of the toy is in the shape of and accordion and a squeaker in the head portion makes sound when the toy is squeezed, and as the toy returns to its original state a grunter located in the rear of the toy makes a grunting sound similar to that of a pig.

The invention is a single piece molded toy that is shaped like an animal wherein the center of the toy is in the shape of and accordion and a squeaker in the head portion makes sound when the toy is squeezed, and as the toy returns to its original state a grunter located in the rear of the toy makes a grunting sound similar to that of a pig.

A sealed diaphragm game call for efficiently calling and attracting wild animals. The sealed diaphragm game call generally includes a call base with an upper surface, a rigid frame, and a diaphragm, which, together, forms a diaphragm call assembly. The game call may also comprise a custom-molded sealant portion. The sealed diaphragm game call is a custom-fit game call that may be made by applying a curable sealant to the upper surface of the call base, inserting the call base in a user's mouth, pressing the call base toward the roof of the user's mouth, and holding the call base in position against the roof of the user's mouth until the curable sealant has cured. After curing, the sealant is bonded to the diaphragm call assembly, and specifically, the upper surface of the call base and the upper surface of the rigid frame.