Timed Ultra-Wideband Communication Using Directional Pulse Coding

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Solution Overview

Problem

Existing wireless communication methods, particularly in Single Pilot Operation (SPO) systems, face challenges in providing low-latency, secure, and resilient communication links due to the potential for interception and increased latency from encryption, especially in scenarios like aircraft automation.

Innovation Solution

A communication system utilizing timed arrays with pulse generation and directional modulation, employing multiple transmitters with adjustable time delays and UWB antennas to encode and transmit data securely through joint spatial coding, ensuring only authorized receivers can reconstruct the signal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If encryption is used to improve security, then security is improved, but latency increases

Engineering Contradiction:

ImprovesecurityVSAvoidlatency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts the security function from traditional encryption methods and implements it through directional modulation and joint spatial coding. The security is achieved by transmitting signals only in specific spatial directions using multiple antennas, eliminating the need for encryption algorithms and their associated processing delays.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical/computational system of encryption with a physical field-based system. Instead of using software encryption algorithms, the system uses the physical properties of electromagnetic wave propagation and spatial filtering to achieve security, thereby reducing processing latency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If directional modulation is used to achieve secure communication, then security is improved, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the transmission function across multiple independent antennas, each capable of transmitting directional modulated signals. This segmentation allows the system to achieve security through spatial diversity while maintaining modular architecture that can be scaled without proportionally increasing overall system complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements a universal transmitter architecture where each antenna serves multiple functions: signal transmission, spatial filtering, and security enforcement. This multi-functionality reduces the need for separate dedicated components for each function, thereby managing system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12451958B2Apparatus and method for timed ultra-wideband data

Publication Date: 2025.10.21 ROCKWELL COLLINS INC

AI summary

A communication system comprising: a pulse generation system comprising one or more pulse repetition frequency (PRF) oscillators and one or more pulse generators, wherein each PRF oscillator is connected to a pulse generator, and wherein each pulse generator is configured to generate a pulse; and three or more transmitters 310a-N, wherein each transmitter is connected to the pulse generation system and wherein the pulse generation system is configured to send a pulse to each transmitter, each transmitter comprising: a pulse delay block configured to introduce a time delay to the pulse sent to the transmitter; and an antenna 314a-N.