Bluetooth Hearing Aid Wireless Audio Link
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Solution Overview
Problem
Conventional hearing aids restrict independent mobility and conversation participation due to the need for close proximity between the user and the speaker, as they rely on physical connections that limit distance and number of participants.
Innovation Solution
A Bluetooth hearing aid system comprising a sound output device with a processor, memory, Bluetooth module, amplifier, and power supply, and a sound input device with a processor, memory, and Bluetooth module, allowing for wireless communication and audio signal transmission between devices, enabling multiple sound input devices to connect to a single sound output device, thus eliminating proximity constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical connection (wire) is used to connect the hearing aid to the sound source, then the hearing aid can receive clear audio signals, but the independent mobility between the speaker and the user is restricted
Solution Approach 1:
The patent replaces the mechanical wire connection with a Bluetooth wireless communication system. The hearing aid includes a Bluetooth module that can wirelessly receive audio signals from sound input devices, eliminating the physical wire constraint while maintaining audio signal transmission capability. This allows users to move freely without being tethered by a wire.
2Reliability
If a one-to-one wire connection is used between the hearing aid and sound source, then the audio signal transmission is stable, but the number of people that can participate in the conversation is restricted
Solution Approach 1:
The patent implements a master-slave Bluetooth network architecture where one hearing aid (master device) can simultaneously connect to multiple sound input devices (slave devices). This allows the user to participate in group conversations with multiple people at once, transforming the one-to-one connection into a one-to-many connection capability.
3Reliability
If a wire connection is used, then the hearing aid can function properly, but the distance between the wearer and the speaker is constrained
Solution Approach 1:
The patent uses Bluetooth wireless technology to replace the mechanical wire connection, enabling the hearing aid to receive audio signals from speakers at a distance. The wireless Bluetooth communication allows users to maintain functionality while increasing the maximum distance between the wearer and the speaker beyond what a wire would permit.
4Adaptability or versatility
If multiple independent hearing aids with wire connections are used, then each user can have independent audio input, but the device complexity and number of connections increases
Solution Approach 1:
The patent allows multiple hearing aids to share a single master Bluetooth connection to one sound input device. Instead of requiring separate wire connections from each speaker to each hearing aid, the system merges multiple hearing aid connections to share common audio sources, reducing overall system complexity while maintaining independent audio input capability for multiple users.
Data Source
AI summary
A hearing aid system includes a Bluetooth enabled sound output device and Bluetooth enabled sound output device. The sound output device has a first processor coupled to a first memory, to a first Bluetooth module, to a sound processing module including an amplifier and a speaker, and to a first power supply. The sound input device has an optional aux jack, and a second processer coupled to a second memory, to a second Bluetooth module selectively Bluetooth linkable with the first Bluetooth module, to a sound input module, and to a second power supply. The sound input device may adjust audio volume level of audio signals to a default level before transmission to the sound output device. A second sound input device may transmit audio signals based to the sound input device, from which the audio signals are transmitted to the sound output device.