IR Transmitter Repurposing for Illumination and Communication

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Solution Overview

Problem

There is a need for more efficient and intuitive methods to interact with electronic devices in residential environments, particularly for video surveillance cameras and electronic devices that utilize infrared (IR) transmitters for illumination and communication.

Innovation Solution

The implementation of a system that includes IR transmitters, processors, and memory in electronic devices, allowing for modes of operation that include both environmental illumination and communication, using IR signals for device interaction, and potentially enhancing these capabilities with light-emitting diodes (LEDs) and depth mapping functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If IR transmitters are used for illumination to generate images, then image quality in low light conditions is improved, but device complexity increases due to multiple operational modes

Engineering Contradiction:
Improveillumination capabilityVSAvoidoperational modes
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent makes the IR transmitter universal by enabling it to perform multiple functions: illumination for image capture and communication with electronic devices. The same IR LED array serves both purposes, eliminating the need for separate illumination and communication hardware, thus improving illumination capability without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If IR transmitters are used for communication with electronic devices, then device interaction capability is improved, but ease of operation deteriorates due to lack of intuitive control methods

Engineering Contradiction:
Improvedevice interaction capabilityVSAvoidcontrol intuitiveness
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system employs self-service by using the camera's existing flash functionality as the interface for communication. When the camera flash is activated, it simultaneously illuminates the scene and transmits communication signals to IR-receiving devices. This eliminates the need for separate remote controls or complex pairing procedures, making operation as intuitive as taking a photograph.

Inventive Principle:
Principle #25Self-service

3Productivity

If multiple functions are integrated into the camera system, then productivity is improved through enhanced functionality, but device complexity increases

Engineering Contradiction:
Improvefunctional capabilityVSAvoidsystem integration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the illumination function and communication function into a single integrated system using the IR LED array. The same hardware component and control logic handle both image illumination and device communication, consolidating multiple functions into existing camera subsystems rather than adding separate dedicated components, thus improving productivity without proportionally increasing complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 system enables efficient and intuitive interaction with electronic devices, improving illumination and communication through IR signals, and potentially enhancing device control and scene analysis with depth mapping features.

Implementation Method 1

the one or more IR transmitters comprise one or more light-emitting diodes (LEDs)

Methodology Applied
Scientific EffectLight-emitting diode (LED): Light Emitting Diode

Implementation Method 2

utilizing IR transmitters for illumination and communication

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Implementation Method 3

generate an image, via the camera, of at least a portion of the environment

Methodology Applied
Scientific EffectPhotoelectric effect: Photoelectric Effect

Implementation Method 4

communicating information to a second electronic device via at least one of the one or more IR transmitters

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Data Source

PatentUS10791259B2Devices and methods for repurposing IR transmitters
Publication Date: 2020.09.29 GOOGLE LLC
  • US10791259B2 patent drawing
  • US10791259B2 patent drawing
  • US10791259B2 patent drawing

AI summary

The various embodiments described herein include methods, devices, and systems for repurposing IR transmitters. In one aspect, a method is performed at a first electronic device with a camera, one or more IR transmitters, one or more processors, and memory coupled to the one or more processors. The method includes operating the first electronic device in a first mode, the first mode including illuminating an environment proximate the first electronic device via at least one of the one or more IR transmitters to generate an image, via the camera, of at least a portion of the environment. The method further includes operating the first electronic device in a second mode, the second mode including communicating information to a second electronic device via at least one of the one or more IR transmitters.