Diaphragm Materials TRIZ Cases
- Sound apparatus and chair, vehicular seat, and vehicular apparatus each including the sound apparatus
See how a piezoelectric vibration device with guide protrusion enables directional stereophonic
- Seat Sound Enclosure for Stereo Audio and Tactile Feedback
An enclosure-mounted vibration member boosts low-pitched sound and delivers tactile feedback in vehicle seats without adding more speakers.
- Detachable Vehicle Speaker Enclosure for Higher Low-Frequency SPL
A detachable coupling and stacked speaker enclosure raise low-frequency sound pressure while keeping vehicle audio installation compact.
- Vehicle Speaker Enclosure Layout for Higher SPL and Stereo Sound
Piezoelectric vibration and heat-dissipating enclosure holes raise vehicle speaker SPL, especially at low frequencies, without adding more speakers.
- Vehicular Speaker Enclosure for Stronger Low-Frequency Sound
An integrated vibration member and enclosure boosts low-frequency sound pressure in vehicle speakers while limiting size growth for stereo output.
- Lead-Free Piezoelectric Vibration Driving With Unipolar AC
A BT-based lead-free piezoelectric driver uses 0 V-or-higher unipolar AC to enable self-poling while maintaining sound pressure and reducing lead risks.
- Piezoelectric Speaker Layout for Higher Sound Pressure
Opposite-phase piezo vibration plates linked by elastic members boost low-frequency sound pressure without losing compact speaker structure.
- Piezoelectric Speaker Structure With Segmented Vibration for Higher SPL
Multiple piezoelectric vibration devices and elastic connections increase displacement and sound pressure while limiting stress on each element.
- Piezoelectric Vibration Assembly With Solder-Free Signal Connection
An integrated signal supply member and connection member remove soldering step heights, reducing cracks while improving sound pressure and sound quality.
- Earphone Speaker Layout for Larger High-Frequency Diaphragms
Moving the flexible substrate pad below the high-frequency diaphragm frees diaphragm area and boosts 10 kHz+ sound pressure.
- Display Panel Vibration Speaker Using Particle-Based Electrodes
A display panel is driven as the sound source using particle-based electrodes, avoiding separate speaker placement and improving sound pressure.
- Display Panel Diaphragm With Air-Pocket Porous Layer
A display panel serves as the diaphragm while an air-pocket porous layer creates resonance space, reducing separate speaker parts and device thickness.
- Piezoelectric Speaker Sub-Plate Structure for Low-Band Sound Pressure
High stiffness limits low-band output in piezoelectric speakers; housing-mounted sub-plates tune vibration transfer for improved sound pressure.
- Multidirectional Sound Output Module with Guide Member
Oriented sound units and a guide member expand coverage while reducing apparatus volume, weight, and structural complexity.
- Piezoelectric Vibration Apparatus With Dual-Modulus Impact Cushioning
A dual-modulus connection member cushions fragile piezoelectric elements and increases plate amplitude for stronger low-frequency sound.
- Speaker Dome Mass Reduction via Local Quality and Edge Openings
A speaker dome structure reduces moving mass through strategic edge openings while maintaining structural integrity.
- Loudspeaker Diaphragm Suspension for Bass Distortion Control
Removing traditional roll suspensions eliminates rub and buzz harmonic distortion, enabling clear personal sound cocoon effects at close distances.
- Voice Coil Extension Element for Loudspeaker THD Reduction
A voice coil extension element attaches to the membrane and coil to position windings within the maximum magnetic field.