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US 12,576,432 B2Granted
Vibration device
AssigneeFoster Electric Company, Limited
InventorsYoji Fukumoto, Shinya Suzuki, Karen Kobayashi, Yosuke Haba
Life of this patent
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Abstract
A vibration device causes a vehicle seat, including a seat frame that supports the seat relative to a vehicle body and a seat cushion that supports a seated occupant, to vibrate. The vibration device includes a vibrator having a vibration face attached to a seat frame, and a vibration control device that causes the vibrator to vibrate based on an input sound source signal.
Claims10
A vibration device that vibrates a vehicle seat, the vibration device comprising:
- a vibrator that has a vibration face that is attached to a seat frame forming a framework of the vehicle seat, the vibrator imparting vibration to the seat frame;
- and
- a control unit that causes the vibrator to vibrate based on an input sound source signal,
- wherein the vibrator comprises a rear face-side vibrator attached to a rear face-side seat frame, and a seat surface-side vibrator attached to a seat surface-side seat frame, and
- wherein the control unit:
- extracts a low frequency range component from the sound source signal, and causes the seat surface-side vibrator to vibrate with the low frequency range component, and
- detects, from the low frequency range component, peaks having a signal level that is equal to or higher than a threshold value, and causes the rear face-side vibrator to vibrate with the low frequency range component for a predetermined period of time including a detection timing of the peaks.
4 more elements
A vibration device that vibrates a vehicle seat, the vibration device comprising:
- a vibrator that has a vibration face that is attached to a seat frame forming a framework of the vehicle seat, the vibrator imparting vibration to the seat frame;
- and
- a control unit that causes the vibrator to vibrate based on an input sound source signal,
- wherein the vibrator comprises a rear face-side vibrator attached to a rear face-side seat frame, and a seat surface-side vibrator attached to a seat surface-side seat frame, and
- wherein the control unit:
- extracts a low frequency range component from the sound source signal, and causes the rear face-side vibrator to vibrate with the low frequency range component, and
- detects, from the low frequency range component, peaks having a signal level that is equal to or higher than a threshold value, and causes the seat surface-side vibrator to vibrate with the low frequency range component for a predetermined period of time including a detection timing of the peaks.
4 more elements
Dependencies are inferred from the claim text.