Integrated Sound Processor IC with On-Chip Voltage Regulation
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Solution Overview
Problem
Conventional auditory prosthesis sound processor apparatuses are bulky due to dedicated power supply modules, which occupy significant space and are aesthetically unappealing.
Innovation Solution
Integration of a linear regulator and sound processing IC within the sound processor apparatus, which receives a source voltage signal, drops it to an intermediate level, and converts it into multiple supply voltage levels to power various components, reducing the need for a separate power supply module and optimizing power efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated power supply module is used, then power supply functionality is provided, but the sound processor apparatus becomes large and bulky
Solution Approach 1:
The patent combines the power supply module and sound processing IC into a single integrated circuit. The power supply module includes voltage regulation circuits that are fabricated on the same semiconductor substrate as the sound processing functions, eliminating the need for separate dedicated power supply modules and reducing overall apparatus volume.
Solution Approach 2:
The integrated circuit performs multiple functions including both power supply regulation and sound processing operations. The single chip provides voltage regulation, audio signal processing, and digital signal processing capabilities, making the device more compact by consolidating previously separate functional modules.
2Reliability
If a dedicated power supply module is used, then power regulation is provided, but the apparatus becomes aesthetically unappealing
Solution Approach 1:
The power regulation functionality is merged into the sound processing IC, creating a compact integrated circuit that maintains professional appearance. The integration eliminates bulky external power modules that would compromise the aesthetic appeal of the hearing device.
3Reliability
If separate power supply components are used, then power conversion is achieved, but space is wasted and production cost increases
Solution Approach 1:
The patent integrates power conversion circuits including voltage regulators and power management functions directly into the sound processing IC. This consolidation reduces component count, simplifies assembly processes, and lowers production costs while maintaining reliable power conversion functionality.
Solution Approach 2:
The integrated circuit uses voltage regulation techniques to convert input voltage to multiple output voltage levels required by different circuit blocks. The power supply module includes regulators that generate different voltage levels from a single input source, enabling efficient power management within the integrated architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This integration reduces the size of the sound processor apparatus, increases functionality, minimizes power loss, and lowers production costs by conserving space and reducing component count.
Implementation Method 1
a linear regulator that receives a source voltage signal having a source voltage level and drops the source voltage level to an intermediate voltage level
Implementation Method 2
the sound processing IC converts the intermediate voltage level into one or more supply voltage levels
Data Source
AI summary
An exemplary sound processor apparatus included in an auditory prosthesis system includes a linear regulator and a sound processing integrated circuit (“IC”). The linear regulator 1) receives a source voltage signal having a source voltage level and provided by an external power source, 2) drops the source voltage level to an intermediate voltage level, and 3) outputs an intermediate voltage signal having the intermediate voltage level. The sound processing IC 1) performs one or more sound processing operations with respect to an audio signal presented to a patient associated with the auditory prosthesis system, 2) receives the intermediate voltage signal having the intermediate voltage level, 3) converts the intermediate voltage level into one or more supply voltage levels, and 4) outputs one or more supply voltage signals having the one or more supply voltage levels.