Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Postech Academy-industry Foundation

Kia Cornoration

Ndai Motor Company

Youngbeom Kim

Yonghwan Hwang

Won Kyu Moon

Minsik Yang

Chongbae Park

Ingyu Lee

A vehicle is capable of preventing unnecessary noise from being generated by outputting a sound for guiding a charging progress state only when a user can listen to the sound output from the vehicle. The vehicle includes a charging management system configured to output an electrical signal corresponding to a charging progress state of the vehicle; a sound output system configured to output a sound corresponding to the electrical signal output from the charging management system in an active mode and not output the sound in an inactive mode; and a controller configured to determine a position of a user device based on a communication signal transmitted from the user device, and to change an operation mode of the sound output system to the inactive mode based on the user device being located outside a preset range.

Vehicle with charging progress notification and method of controlling the same

A vehicle includes a first speaker, a microphone, an output device, and a control device configured to output a first sound signal through the first speaker, receive a second sound signal through the microphone, identify whether there is an occupant in a rear seat of the vehicle based on the first sound signal and the second sound signal, and control the output device to output a warning sound based on the presence of the occupant in the rear seat.

Vehicle and control method thereof

A vehicle that selectively provides important sound to an occupant includes: a microphone configured to receive a noise sound; a speaker; a storage configured to store a plurality of sound waveforms and a warning sound source corresponding to each sound waveform of the plurality of sound waveforms; and a controller configured to generate a noise canceling signal based on the noise sound, control the speaker to output a noise canceling sound corresponding to the noise canceling signal, compare a waveform of the noise sound with the plurality of sound waveforms when a sound pressure level of the noise sound is greater than a threshold value, and when the waveform of the noise sound matches any sound waveform of the plurality of sound waveforms, and control the speaker to play a warning sound source corresponding to the sound waveform matching the noise sound.

A vehicle for blocking a virtual engine sound that is introduced into the vehicle includes: a speed sensor configured to detect a travelling speed of the vehicle; a virtual engine sound system (VESS) including a first speaker and a second speaker; and a controller configured to control the VESS based on the travelling speed, wherein the controller is configured to: upon the vehicle being in a stopped state, control the VESS such that the first speaker outputs a virtual engine sound and the second speaker outputs a sound having an inverse phase of the virtual engine sound.

Vehicle and method of controlling the same

A vehicle is provided to minimize the difference in left and right output intensity of a headrest speaker by adjusting an output intensity of based on the position of the passenger's ear. The headrest includes a left-side speaker provided on the left-side of the headrest of a seat inside the vehicle to output sound and a right-side speaker provided on the right-side of the headrest to output sound. A pressure sensor measures a force applied to the headrest and a controller adjusts the output intensity of the left speaker and the right speaker based on an action point of the force measured by the pressure sensor.

Vehicle and method for controlling thereof

A vehicle that efficiently prevents a driver from eavesdropping a voice of a passenger may include: a driver's seat having a headrest speaker in a headrest thereof; the headrest speaker configured to output a sound, a front passenger seat, at least one rear passenger seat; a microphone configured to detect a voice of the passenger seated on the at least one rear passenger seat; and a controller configured to generate a masking curve based on the voice of the passenger and output a masking sound corresponding to the masking curve by controlling the headrest speaker.

Sound system of vehicle and control method thereof

A vehicle and a controlling method of the same controlling an output of a speaker based on a mutual influence between a plurality of speakers provided on a crush pad are provided. The vehicle includes a crush pad, a first speaker provided on the crush pad, and a second speaker provided on the crush pad and positioned on one side of the first speaker. An amplifier supplies current to the first speaker and the second speaker and a detector detects the current of the first speaker and the current of the second speaker. A controller is configured to compensate a movement of the second speaker caused by an operation of the first speaker based on an output of the detector when a current is supplied to the first speaker among the first speaker and the second speaker.

Vehicle and controlling method thereof

A vehicle capable of directing a sound output from a center speaker to a passenger by adjusting a tilt angle and a swivel angle of a cradle for a user terminal device includes: a center speaker provided on a dashboard; a cradle provided within a preset distance from the center speaker, fixing a user terminal device, and configured to tilt and swivel; a camera configured to obtain an image of a passenger; and a controller configured to determine an ear position of the passenger based on the image of the passenger, determine a first angle and a second angle based on the ear position of the passenger, and control the cradle to be tilted by the first angle and swiveled by the second angle.

A vibration speaker may include a vibration plate fixed to a housing, a vibrator mounted in the housing to vibrate in a vibration direction of the vibration plate and having a magnet forming a magnetic field, a voice coil member configured to vibrate the vibration plate through interaction of the magnet with the vibrator, and a vibration transmission member configured to support the voice coil member in a state of being fixed to an internal surface of the vibration plate and transmit vibration of the voice coil member to the vibration plate, wherein the vibration transmission member includes a spacing support portion fixed to the voice coil member to be spaced from the internal surface of the vibration plate, and a vibration transmission portion protruding from the spacing support portion to be fixed to the internal surface of the vibration plate.

Vibration speaker

A personal air vehicle (PAV) and a control method thereof are provided for compensating for distortion in a speaker due to changes in altitude. The. PAV provides communication through a speaker in an emergency. In particular, the PAV includes an air pressure sensor that is configured to sense external air pressure and a propulsion device that is configured to supply propulsion for flight. A speaker is provided and includes an enclosure having a preset internal air pressure. A controller is configured to adjust an acoustic signal supplied to the speaker based on a difference value between the external air pressure and the internal air pressure changing according to altitude.

Personal air vehicle and control method thereof

A vibration speaker includes: a housing; a diaphragm covering an open side of the housing and having a rim fixed to the housing; a vibration member installed in the housing to vibrate in a vibration direction of the diaphragm and having a magnet forming a magnetic field; a voice coil installed on an inner surface of the diaphragm and configured to vibrate the diaphragm through interaction with the vibration member; a solenoid driver fixed in the housing and configured to form the magnetic field that controls vibration of the vibration member; an amplifier configured to apply a first output signal to the voice coil and apply a second output signal having a phase different from the first output signal to the solenoid driver; and a controller configured to determine whether to apply the second output signal by comparing a frequency of the first output signal with the resonance frequency.

Vibration speaker for vehicle and control method thereof

A vehicle includes: at least one output device; a motion recognition sensor configured to output a signal for a finger motion of a user; and a controller configured to: determine a finger motion pattern based on the signal for the finger motion; determine a first output device corresponding to the determined finger motion pattern among the at least one output device; determine an operation command corresponding to the determined finger motion pattern; and control the first output device based on the operation command.

A vehicle and a method of controlling the vehicle for adjusting a sound pressure of a virtual engine sound based on external noise are provided. The vehicle may include: a speaker to output a virtual engine sound; a microphone to receive external sound generated outside of the vehicle; and a controller configured to extract noise by separating the virtual engine sound from the external sound, determine each peak sound pressure of a plurality of peak sound pressures as a peak point, identify a plurality of equalizer (EQ) filters having a predetermined bandwidth, generate an amplification filter by combining the plurality of EQ filters, apply the amplification filter to the virtual engine sound and control the speaker to output the virtual engine sound.

A speaker system includes a speaker configured to output sound from an electric signal, a sensing unit configured to measure at least one of current or a voltage of the speaker, an amplifier configured to supply current to the speaker, and a control unit configured to measure inductance of the speaker on the basis of the at least one of the current or the voltage of the speaker, to determine a current temperature on the basis of the inductance, and to adjust current to be applied to the speaker by the amplifier on the basis of the current temperature such that a variation in output of the speaker with respect to a temperature is compensated for.

Vehicle speaker and method of controlling the same

A passive radiator vibration speaker having a phase reversal structure can include a driving unit configured to generate a driving force, a diaphragm f disposed on an upper side of the driving unit to reproduce a first sound of a sound band of a specific range by being vibrated by the driving unit, a passive radiator disposed above the diaphragm in a state of being spaced apart from the diaphragm by a determined distance to reproduce a second sound of a relatively lower sound band than that of the diaphragm through vibration, and a phase reversal unit having one side being in contact with a lower surface of the diaphragm to reverse a phase of a part of the vibration of the diaphragm so as to transmit a phase-reversed vibration to the passive radiator, where the phase-reversed vibration is in a reversed phase to the vibration of the diaphragm.

Growing community of inventors

Bucheon-si, South Korea

Youngbeom Kim