Bluetooth Headset Hearing Aid Function via Software Algorithm

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Solution Overview

Problem

Hearing aids based on Bluetooth headsets are expensive due to the need for specialized hardware, including hearing aid chips, which has led to a monopoly and high costs for hearing-impaired individuals.

Innovation Solution

Upgrading common Bluetooth headset chips with a hearing loss correction software that embeds a hearing aid algorithm module, comprising sound field recognition, adaptive noise suppression, dynamic range compression, spectrum shifting, feedback suppression, and adaptive output gain control units, to provide hearing aid functions without altering the hardware.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If specialized hearing aid chips are used to achieve hearing aid function, then hearing aid functionality is improved, but device cost and hardware complexity increase

Engineering Contradiction:
Improvehearing aid functionalityVSAvoidhardware complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the traditional hardware-based hearing aid chip with a software-based solution. The hearing aid algorithm module is implemented as software that runs on a common Bluetooth headset chip, eliminating the need for specialized hardware components. This substitution of mechanical/hardware system with software system directly resolves the contradiction by maintaining hearing aid functionality while reducing hardware complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a software copy of the hearing aid chip's functionality. Instead of using the actual expensive hearing aid chip, the invention implements a software version of the chip's processing capabilities (noise suppression, dynamic range compression, spectrum shifting) that can run on any standard Bluetooth chip, thereby copying the function at lower cost and reduced complexity.

Inventive Principle:
Principle #26Copying

2Reliability

If hearing aid chips are embedded into Bluetooth headsets to achieve hearing aid function, then hearing aid functionality is improved, but manufacturing cost increases

Engineering Contradiction:
Improvehearing aid functionalityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the mechanical embedding of expensive hearing aid chips with software installation. The hearing aid algorithm module is deployed as software that can be installed on existing Bluetooth headset chips through over-the-air updates or firmware installation, eliminating the need for complex hardware manufacturing processes and reducing manufacturing costs significantly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent makes the common Bluetooth headset chip universal by enabling it to perform both its original Bluetooth communication function and the additional hearing aid function through software. This multi-functionality approach eliminates the need for separate specialized hearing aid chips, thereby reducing manufacturing costs while maintaining hearing aid functionality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If hardware changes are made to Bluetooth headsets to achieve hearing aid function, then hearing aid functionality is improved, but device complexity and cost increase

Engineering Contradiction:
Improvehearing aid functionalityVSAvoidhardware modification
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent substitutes hardware modification with software implementation. Instead of physically changing the Bluetooth headset's hardware components to add hearing aid functionality, the invention uses a software-based hearing aid algorithm module that can be installed and executed on the existing chip, thereby eliminating hardware complexity while maintaining functionality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces dynamic software updates that can be applied to the Bluetooth headset chip without physical hardware changes. The hearing aid algorithm module can be updated, configured, and adjusted dynamically through software, providing flexibility and adaptability without the complexity of hardware modification or replacement.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11627421B1Method for realizing hearing aid function based on bluetooth headset chip and a bluetooth headset
Publication Date: 2023.04.11 ZHUZHOU SHENGYU MEDICAL DEVICE TECHNOLOGY CO LTD
  • US11627421B1 patent drawing
  • US11627421B1 patent drawing

AI summary

The invention discloses a method for realizing hearing aid function based on Bluetooth headset chip and a Bluetooth headset: the common Bluetooth headset chip software of Bluetooth headset is upgraded to a specific Bluetooth headset chip with hearing aid function by a hearing loss correction software; a hearing aid algorithm module is embedded into the development kit of the common Bluetooth headset chip in the form of software library by the hearing loss correction software, so that the common Bluetooth headset chip has the hearing aid function only by software upgrade; after being processed by the hearing aid algorithm module, a sound signal is output to a hearing-impaired user, so that the hearing-impaired user can use the common Bluetooth headset to realize the hearing aid function. For the Bluetooth headset, a special hearing aid chip does not need to be installed or any change does not need to be made to the headset hardwares, and the function and price can meet the needs of hearing-impaired users, so that the hearing impaired users can enjoy great convenience from such a Bluetooth headset without buying expensive special hearing aid.