A display substrate, a method for driving the same and a display device are provided. The display substrate includes a first base substrate, at least one vibrator and at least one identification unit. The at least one identification unit is on the first base substrate, the at least one identification unit is in a display area of the display substrate, and the at least one vibrator is on a side of the first base substrate facing away from the identification unit. The at least one vibrator is configured to drive the first base substrate to vibrate to emit an acoustic signal; and the at least one identification unit is configured to receive an ultrasonic signal reflected by an object to be detected, and convert the ultrasonic signal into a first electrical signal.

An on-board warning sound device and apparatus for vehicle is provided. The on-board warning sound apparatus for a vehicle may include a horn assembly having a horn coil assembly and a horn trumpet connected with the horn coil assembly; a loudspeaker arranged independently of the horn assembly; and a control unit connected with the horn assembly and the loudspeaker. The control unit may generate a sound intensity control signal according to the current state of the vehicle and a surrounding environment of the vehicle, and may control the horn assembly to emit horn warning sounds based on the sound intensity control signal. The control unit may further generate a simulated engine sound signal according to the current state of the vehicle, and may control the loudspeaker to emit simulated engine warning sounds based on the simulated engine sound signal.

An on-board warning sound device and apparatus for vehicle is provided. The on-board warning sound apparatus for a vehicle may include a horn assembly having a horn coil assembly and a horn trumpet connected with the horn coil assembly; a loudspeaker arranged independently of the horn assembly; and a control unit connected with the horn assembly and the loudspeaker. The control unit may generate a sound intensity control signal according to the current state of the vehicle and a surrounding environment of the vehicle, and may control the horn assembly to emit horn warning sounds based on the sound intensity control signal. The control unit may further generate a simulated engine sound signal according to the current state of the vehicle, and may control the loudspeaker to emit simulated engine warning sounds based on the simulated engine sound signal.

A vehicle horn assembly for installation in one of a first vehicle type and a second vehicle type different than the first vehicle type is provided. The vehicle horn assembly includes a housing common to each of the first vehicle type and the second vehicle type. The housing has a resonance tube provided with a sound outlet portion. A first cover separate from the housing has a first configuration. The first cover is configured to be releasably connected to the housing for covering the sound outlet portion when the housing is to be installed in the first vehicle type. A second cover separate from the housing has a second configuration different than the first configuration. The second cover is configured to be releasably connected to the housing for covering the sound outlet portion when the housing is to be installed in the second vehicle type.

A vehicle horn assembly for installation in one of a first vehicle type and a second vehicle type different than the first vehicle type is provided. The vehicle horn assembly includes a housing common to each of the first vehicle type and the second vehicle type. The housing has a resonance tube provided with a sound outlet portion. A first cover separate from the housing has a first configuration. The first cover is configured to be releasably connected to the housing for covering the sound outlet portion when the housing is to be installed in the first vehicle type. A second cover separate from the housing has a second configuration different than the first configuration. The second cover is configured to be releasably connected to the housing for covering the sound outlet portion when the housing is to be installed in the second vehicle type.

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves.

The invention relates to a structure-borne sound actuator for a motor vehicle, which comprises an electro-dynamic excitation unit, and the excitation unit is formed with an excitation side configured to excite an acoustic body, wherein an acoustically rigid intermediate element is secured to the excitation side and the intermediate element has a coupling side, which faces away from the excitation side, and is configured for coupling to the acoustic body.

The invention relates to a structure-borne sound actuator for a motor vehicle, which comprises an electro-dynamic excitation unit, and the excitation unit is formed with an excitation side configured to excite an acoustic body, wherein an acoustically rigid intermediate element is secured to the excitation side and the intermediate element has a coupling side, which faces away from the excitation side, and is configured for coupling to the acoustic body.

Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display and for sound leak cancellation. A vibration sensor such as an accelerometer is physically coupled to the display and senses the display vibration to provide a signal representing actual acoustic output from the display. The electronic device includes a first actuator physically coupled to the display and configured to cause vibration of the display in response to a first audio signal. The electronic device further includes the vibration sensor configured to output a vibration sensor signal proportional to the vibration of the display. The electronic device further includes a second actuator physically coupled to a portion of the electronic device different from where the first actuator is physically coupled to the display and configured to cause vibration of the portion in response to a second audio signal.