Noise-Tolerant Device Synchronization Through Pattern Recognition

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Solution Overview

Problem

Computing devices face synchronization failures and security vulnerabilities due to noise symbols in communication channels, leading to data loss and potential malicious attacks, particularly in IoT devices.

Innovation Solution

Implement synchronization systems with interspersed noise symbols that allow for synchronization despite unknown noise positions, using distance metrics and spread criteria to ensure secure and robust synchronization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If exact match synchronization is used, then synchronization precision is improved, but reliability deteriorates due to noise symbols causing failure to synchronize

Engineering Contradiction:

Improvesynchronization precisionVSAvoidsynchronization reliability

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent applies partial matching instead of requiring exact match. The receiver identifies synchronization symbols by finding a partial match of the synchronization symbol sequence within the received symbol sequence, even when noise symbols are interspersed. This allows synchronization to succeed despite the presence of noise symbols, resolving the contradiction between precision and reliability.

Inventive Principle:

Principle #16Partial or excessive action

2Object-affected harmful factors

If noise symbols are interspersed in synchronization sequence, then security is improved against eavesdropping, but device complexity increases

Engineering Contradiction:

Improvesecurity against eavesdroppingVSAvoidsynchronization processing complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent extracts and removes noise symbols from the received symbol sequence during processing. By identifying and excluding symbols that do not match the expected synchronization sequence pattern, the system maintains security benefits of noise insertion while simplifying the matching process. The receiver focuses only on identifying the embedded synchronization sequence rather than processing the entire noisy sequence.

Inventive Principle:

Principle #2Taking out (Extraction)

3Loss of information

If full synchronization sequence is transmitted, then data integrity is improved, but loss of information increases due to noise symbols

Engineering Contradiction:

Improvesynchronization information lossVSAvoiddata integrity

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The patent uses preliminary correlation analysis to identify the position of synchronization symbols before full data transmission begins. By detecting the synchronization sequence early in the received signal, the receiver can establish proper framing and synchronization state before processing the main data payload, preventing information loss due to misalignment caused by noise symbols.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3994836B1Device synchronization with noise symbols and pattern recognition

Publication Date: 2025.11.05 MICROSOFT TECHNOLOGY LICENSING LLC

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AI summary

Disclosed in some examples are methods, systems and machine-readable mediums which allow for more secure and robust synchronization by implementing synchronization systems with sequences that may include interspersed noise symbols. These systems, which still synchronize despite one or more noise symbols N in indeterminate positions that are not known by the recipient device during a synchronization attempt reduce the amount of failed synchronization attempts.