Transducer Assembly Unique ID via Hardwired Bus Contacts
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Solution Overview
Problem
Existing digital transducer assemblies, such as microphones and sensors, face challenges in efficiently determining unique identification codes and configuring communication protocols, leading to potential interference and reduced functionality when multiple devices share a common bus.
Innovation Solution
The implementation of a configuration where the host processor's busses are uniquely connected to specific contacts of the transducer assembly's communication interface via a carrier substrate, allowing for hardwired assignment of unique identification codes and protocol configuration, enabling efficient communication protocol determination and device identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple transducer assemblies share a common bus with standardized communication protocol, then device compatibility and ease of connection are improved, but device identification and communication reliability deteriorate due to potential interference and lack of unique identification
Solution Approach 1:
The patent segments the common bus system by assigning each transducer assembly a unique identification code through hardwired connections. This segmentation allows multiple devices to coexist on the same bus without interference, as each device can be individually identified and addressed, resolving the reliability issue while maintaining bus-sharing compatibility
Solution Approach 2:
The patent introduces an intermediary mechanism (the unique identification code system with hardwired contacts) between the standardized communication protocol and the individual transducer assemblies. This intermediary enables reliable device identification and protocol configuration over the shared bus, bridging the gap between standardized communication and individual device recognition
2Ease of manufacture
If unique identification codes are determined through software configuration, then manufacturing simplicity is improved, but communication efficiency and interference reduction deteriorate
Solution Approach 1:
The patent applies preliminary action by hardwiring the unique identification codes during the manufacturing process itself, rather than configuring them through software later. This pre-assignment of unique codes during manufacturing ensures that each device has a fixed identity before deployment, enabling efficient communication and interference reduction without adding complexity to the communication protocol
Data Source
AI summary
A method in a transducer assembly having an external-device interface coupled to a communication protocol interface of the transducer assembly. The transducer assembly is configured to convert an input signal having one physical form to an output signal having a different physical form. At least two electrical signals are received on corresponding contacts of the external-device interface of the transducer assembly. A characteristic of at least one of the electrical signals is determined by evaluating a logic transition of the signal. A unique identity assigned to the transducer assembly is determined based on the characteristic.