Hearing Device Accessory Communication Using Differential Multi-QoS Frames
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Solution Overview
Problem
Existing communication interfaces and protocols for hearing devices and accessories fail to provide optimal features such as support for different qualities-of-service within a single data frame, reliable and resilient communication over a minimal number of wires, high-speed communication over long distances, bidirectional communication, low power consumption, and low emissions, which are essential for modern hearing systems like cochlear implants and hearing aids.
Innovation Solution
A communication interface using two physical conductors configured to carry differential signaling with a frame protocol that defines data frames to communicate datasets associated with different services and qualities-of-service, allowing for bidirectional, flexible, and resilient data transmission over a minimal number of wires, suitable for hearing devices and accessories worn at different locations on the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing communication interfaces and protocols are used for hearing devices, then device compatibility and ease of implementation are maintained, but the system fails to support multiple qualities-of-service within a single data frame, lacks reliable communication over minimal wires, and cannot achieve high-speed communication over long distances
Solution Approach 1:
The data frame is segmented into multiple distinct fields, each dedicated to a specific quality-of-service type (e.g., first field for real-time service, second field for control service). This segmentation allows simultaneous support for multiple QoS levels within a single communication frame without requiring separate communication channels, thereby increasing adaptability while maintaining manageable complexity through structured organization.
Solution Approach 2:
The communication interface is designed as a universal protocol that can handle multiple qualities-of-service (real-time, control, interrupt) within a single data frame structure. This multi-functional design allows the same physical interface and protocol to serve diverse communication needs without requiring separate specialized interfaces for each QoS type, thus improving versatility without proportionally increasing device complexity.
2Reliability
If legacy communication protocols are used, then implementation simplicity is maintained, but communication reliability and resilience over minimal wires is insufficient
Solution Approach 1:
The protocol incorporates feedback mechanisms including acknowledgment fields and error detection/correction capabilities within the data frame structure. These feedback elements enable reliable communication by allowing the receiving device to verify data integrity and request retransmission if necessary, thereby achieving robust communication over minimal wires without requiring overly complex external error handling systems.
Solution Approach 2:
The data frame structure includes pre-configured error protection fields and redundancy elements that are built into the protocol before transmission occurs. This beforehand cushioning approach ensures that communication reliability is maintained through built-in error handling capabilities rather than requiring complex post-transmission recovery mechanisms, thus achieving reliability with controlled protocol complexity.
3Speed
If conventional communication interfaces are used, then power consumption requirements are moderate, but communication speed and distance performance are insufficient
Solution Approach 1:
The communication interface employs periodic transmission schemes where data is sent in structured frames at optimized intervals rather than continuous transmission. This periodic action allows the system to achieve high effective communication speed through efficient batched data transfer while reducing average power consumption by allowing the communication circuits to enter low-power states between transmission periods, thus balancing speed and energy usage.
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
The solution enables efficient, reliable, and resilient communication between hearing devices and accessories, supporting various qualities-of-service, low power consumption, and low emissions, facilitating optimal performance and compatibility with different generations of hearing systems.
Implementation Method 1
A communication interface using two physical conductors configured to carry differential signaling with a frame protocol
Data Source
AI summary
Illustrative communication interfaces and protocols for multi-service data communication between a hearing device and an accessory are described herein. For example, an example hearing system may include a hearing device configured to be worn by a recipient, an accessory configured to interoperate with the hearing device while worn separately by the recipient, and a communication interface between the hearing device and the accessory. The communication interface may include two physical conductors configured to carry differential signaling generated in accordance with a frame protocol that defines a data frame configured to communicate a first dataset and a second dataset. The first dataset is associated with a first data service performed in accordance with a first quality-of-service. The second dataset is associated with a second data service performed in accordance with a second quality-of-service different from and incompatible with the first quality-of-service. Corresponding systems and methods are also disclosed.