Projection System Sleep Mode Audio-Visual Adjustment

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Solution Overview

Problem

Existing entertainment electronic products, such as projectors, often fail to automatically adjust their projection and audio settings in response to a user's sleep behavior, leading to potential power waste and interference with the user's sleep.

Innovation Solution

A projection system and method that includes a projection device with a controller, projection module, and audio player. The controller executes a prepare-for-sleep mode by dimming the projection beam or projecting a predetermined image and playing a predetermined sound, automatically adjusting the audio-visual settings based on the user's physiological characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the projection device continues to operate at full brightness and audio volume, then the display function is maintained, but power is wasted and user sleep is interfered with

Engineering Contradiction:
Improvepower consumptionVSAvoiddisplay function
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The projection device dynamically adjusts its projection brightness and audio volume based on the detected sleep stage of the user. During wakeful stages, the device operates at full performance, but as the user transitions into sleep stages, the system automatically dims the projection and reduces audio output, thereby reducing power consumption while maintaining appropriate display functionality for each state.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates a sensor that detects the user's sleep stage and provides feedback to the controller. Based on this feedback, the controller automatically adjusts the projection module's brightness and the audio player's volume, creating a closed-loop control system that optimizes power consumption according to the user's actual state without manual intervention.

Inventive Principle:
Principle #23Feedback

2Object-affected harmful factors

If the projection device automatically adjusts settings, then sleep quality is improved, but device complexity increases

Engineering Contradiction:
Improvesleep interferenceVSAvoidsystem structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The projection device integrates multiple functions into a single system: it serves as both a display device and a sleep monitoring device. The controller not only manages projection output but also processes sensor data to detect sleep stages, and coordinates both projection and audio subsystems. This multi-functionality reduces the need for separate dedicated devices while achieving sleep quality improvement.

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

Solution Approach 2:

The system automatically detects the user's sleep stage through integrated sensors and self-adjusts the projection and audio settings without requiring external intervention or complex user setup. The device serves itself by using its own sensor data to control its own output, simplifying the overall system architecture while achieving adaptive sleep support.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12298655B2Projection system and projection method
Publication Date: 2025.05.13 CORETRONIC CORPORATION
  • US12298655B2 patent drawing
  • US12298655B2 patent drawing
  • US12298655B2 patent drawing

AI summary

The disclosure provides a projection system and a projection method. The projection system includes a projection device. The projection device includes a projection module, a controller, and an audio player. The controller is coupled to the projection module. The audio player is coupled to the controller. When the controller executes the prepare-for-sleep mode, the controller operates the projection module to dim a projection beam or to project a predetermined projection image and operates the audio player to play a predetermined sound.