Pixation Corp.
Technology
Hi-Fi Audio
Pixation technologies reproduce speech with high fidelity: 31.25 kHz microphone sampling; 62.5kHz PWM audio out; eight octave bandwidth (3DB: 50Hz to 15.5 kHz)
Low Cost
Pixation technologies can be implemented on low-cost microcontrollers such as the 48MHz Microchip® ATSAMD21E17 using the ARM® Cortex M0+ Processor.
Passive Amplification
Pixation technologies can improve the Speech Intelligibility Index (SII) by raising high frequency speech levels to levels above the microphone equivalent noise levels.
Signal-to-Noise
Move beyond wide dynamic range compression with Pixation's controlled acoustic signal expansion technology. This technology greatly improves intelligibility in noisy environments.
Dip Listening
Pixation technologies continuously analyzes the sound environment to catch "acoustic glimpses" of speech, especially when fluctuating background noise levels decrease momentarily.
Low Power, Safety
A new level of hearing aid performance: 9 hours (typical) with a rechargeable 110mAh LiPo battery. Sound exposure limited to 85dBA time-weighted average.
Application Notes, Schematics, Eagle Files, Gerber Files, BOM, Papers:
Over-the-Counter Hearing Aids (pdf)
Behind-the-Ear Hardware and Schematic (pdf)
Body Worn Hardware and Schematic (pdf)
Bone Conduction Hardware and Schematic (pdf)
Pixation Firmware and User Instructions - VERSION 2.0 (pdf)
Receiver Calibration (pdf)
Behind-the-Ear Hardware: Eagle files, Gerber files, BOM (zip)
Body Worn Hardware: Eagle files, Gerber files, BOM (zip)
Bone Conduction Hardware: Eagle files, Gerber files, BOM (zip)
How Microphones Limit Hearing Aid Efficacy and a Solution (pdf)
Expanding the Reach of Microphones: Improving Intelligibility (pdf)
Advancements in Passive Amplifiers Used for Ultrasonic Range Sensors (pdf)
Understanding Microphone Equivalent Noise (pdf)
Passive Amplifiers Add DirectionalSensitivity to MEMS Microphones (pdf)
Passive Amplification: Comparing Parabolic Reflection with Density Amplification (pdf)
Downloads
Pixation regularly files patent applications to protect its innovations. The following are some patented innovations from Pixation:
US 11,432,066 - Audio Systems, Devices, MEMS Microphones, and Methods Thereof
US 11,056,129 - Adaptive Parametrically Formulated Noise Systems, Devices, and Methods
US 11,045,118 - Systems, Devices, and Methods for Determining Hearing Ability and Treating Hearing Loss
US 10,805,741 - Audio Systems, Devices, and Methods
US 10,798,495 - Parametrically Formulated Noise and Audio Systems, Devices, and Methods thereof
US 10,142,743 - Parametrically Formulated Noise and Audio Systems, Devices, and Methods thereof
US 10,142,742 - Audio Systems, Devices, and Methods
US 9,491,559 - Method and Apparatus for Directional Acoustic Fitting of Hearing Aids
US 9,101,299 - Hearing Aids Configured for Directional Acoustic Fitting
US 8,942,397 - Method and Apparatus for Adding Audible Noise with Time Varying Volume to Audio Devices
US 8,879,745 - Method of Deriving Individualized Gain Compensation Curves for Hearing Aid Fitting
US 8,553,897 - Method and Apparatus for Directional Acoustic Fitting of Hearing Aids
US 2022/0225016 A1 - Audio Systems, Devices, and Methods
+ Additional patents are pending