Black Body Radiation Communications Without Power Transmission

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Solution Overview

Problem

Existing wireless communications technologies face issues such as interference, data privacy concerns, electromagnetic interference with sensitive devices, limited bandwidth, and safety risks, particularly with power-based transmissions.

Innovation Solution

A net zero power communications system utilizing a laser beam generator, black body, cooled cavity, and controller to encode information through temperature changes in an optical absorber layer or fluid, emitting black body radiation without actual power transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traditional power-based wireless transmission is used, then information can be transmitted over distance, but interference and electromagnetic interference with sensitive devices occurs

Engineering Contradiction:

Improveinformation transmissionVSAvoidinterference and electromagnetic interference

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of transmission from power-based electromagnetic waves to temperature-modulated black body radiation. By encoding information in temperature variations of the optical absorber layer rather than power variations, the system achieves information transmission without the harmful electromagnetic interference characteristic of traditional wireless communications

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the electromagnetic field-based transmission mechanism with a thermal radiation mechanism. Instead of modulating electromagnetic wave properties (amplitude, frequency, phase), the system modulates the thermal state of an optical absorber to emit black body radiation with encoded temperature patterns, substituting one physical domain for another to eliminate interference issues

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If power-based transmissions are used, then wireless communication is enabled, but data privacy concerns and safety risks arise

Engineering Contradiction:

Improvewireless communicationVSAvoiddata privacy concerns and safety risks

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent converts the typically harmful high-power electromagnetic transmissions into beneficial low-power black body radiation. By using temperature modulation rather than power transmission, the system transforms a potentially harmful radiation source into a safe thermal emission process that operates at non-ionizing, non-damaging power levels while maintaining communication functionality

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Loss of information

If traditional wireless transmission methods are used, then communication is achieved, but bandwidth is limited

Engineering Contradiction:

Improvecommunication capabilityVSAvoidbandwidth

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The patent employs periodic laser beam pulsing to modulate the temperature of the optical absorber layer. By controlling the frequency, duty cycle, and pattern of these periodic laser pulses, the system can encode multiple information parameters simultaneously, effectively increasing the communication bandwidth beyond what single-parameter modulation allows

Inventive Principle:

Principle #19Periodic action

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

This approach reduces interference, enhances data privacy, eliminates eye safety concerns, and increases bandwidth by encoding information through temperature changes in black body radiation, avoiding traditional power-based transmission mechanisms.

Implementation Method 1

The controller is configured to control the laser beam generator to emit laser beam pulses at the optical absorber layer that changes a temperature of the optical absorber layer

Methodology Applied

Scientific EffectLaser heating: Laser

Implementation Method 2

causes the optical absorber layer to emit black body radiation from the cooled cavity to thereby encode the information

Methodology Applied

Scientific EffectBlack body radiation: Thermal Radiation

Implementation Method 3

a cooled cavity, an optical absorber in the cooled cavity

Methodology Applied

Scientific EffectThermal cooling: Cooling

Data Source

PatentUS12445204B2Communications without power transmission

Publication Date: 2025.10.14 THE BOEING CO

AI summary

A net zero power communications system comprising a laser beam generator, a black body, a cooled cavity, an optical absorber in the cooled cavity, and a controller. The controller is configured to identify information for transmission. The controller is configured to control the laser beam generator to emit laser beam pulses at the optical absorber layer that changes a temperature of the optical absorber layer with a pattern that causes the optical absorber layer to emit black body radiation from the cooled cavity to thereby encode the information.