Digitally Weighted Transducing Elements TRIZ Cases

Opposing magnets and magnetic covers keep a small transducer gap stable under external force, improving robustness and assembly.

Clocked delay elements split modulated audio across multiple speaker coils to raise loudness without boosted power while filtering jitter.

Delayed PWM driving across multiple loudspeaker coils boosts loudness from one compact speaker while suppressing out-of-band signals.

Multiple digital loop filters and a butterfly mixer raise audio loop gain while suppressing amplifier and output-filter non-idealities.

Multi-bit Δ-Σ modulation, thermometer coding, and mismatch shaping remove analog LC filters to cut power, size, and distortion.

Internal AGC and digital compensation vary preamplifier gain to extend PDM microphone dynamic range without extra control pins.

Selectable cutoff filters let direct digital speakers adjust volume while keeping frequency response flatter across the audio range.

An internal AGC and compensation path varies preamplifier gain to widen digital microphone range without adding control pins.

Digital filters, equalization, and compression tune ringtones for studio-quality sound on existing vehicle speakers without costly upgrades.

Multi-bit Sigma-Delta modulation replaces PWM to cut nonlinear distortion, raise SNR, and enable low-power digital speaker arrays.

Profile-based DSP adjusts graphic equalizer filters and gain to deliver studio-quality audio on low-cost speakers in vehicles and mobile devices.

Real-time admittance extraction updates loudspeaker parameters during playback to prevent over-excursion, thermal damage, and control drift.

An ultrasonic membrane and shutter split audio generation and modulation to cut noise and power draw while preserving dynamic range and low latency.

Repelling magnets, a movable gap, and an integrated support member improve transducer stability while easing manufacturing.

A direct digital speaker volume control device selects filters with distinct cutoff frequencies to manage sound pressure levels.

Stacked piezoelectric layers bend to generate sound, reducing area and weight compared to parallel arrangements.

A processing engine determines a non-linear transfer function from pinna images to generate spatial audio cues.

An array of independently controlled moving elements achieves long stroke lengths and high sound intensity without requiring high driving voltages.

A sound reproduction system emits distinct audio signals using control filters to manage spatial sound pressure distribution.

Dual actuator membrane device uses magnetic fields to constrain displacement and dampen vibrations without mechanical contact.

A driving circuit recycles energy stored in capacitive loads using a bidirectional DC-DC converter and PWM controller.

A virtual speaker generates a delayed sound source signal to adjust sampling rates and suppress near-field effects in speaker arrays.

Segmented cushion sections resolve the contradiction between attachment security and tightness discomfort.

A direct digital speaker array uses electrostatic actuation to drive pressure-producing elements for precise sound control.

A semiconductor die integrates a mode selector circuit to dynamically reconfigure signal paths within the microphone capsule.