State-Detection Circuit for Adaptive Entertainment Device Control

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Solution Overview

Problem

Existing user interfaces for portable electronic devices controlling other devices are often complex and confusing, leading to user errors and frustration due to the lack of feedback on the state of the controlled devices.

Innovation Solution

An audio/video hub with a state-detection circuit that establishes a ground loop with an entertainment device to detect electrical coupling, provides control commands, and identifies the device type and state, allowing for a dynamic user interface adaptation based on the device's current state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the user interface provides many options and controls for entertainment devices, then the functionality and versatility are improved, but the complexity of the user interface increases making it harder to use

Engineering Contradiction:
ImprovefunctionalityVSAvoiduser interface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The user interface dynamically adapts its complexity based on the detected state of the entertainment device. When the device is in standby mode, the interface shows simplified options. When the device is active, more comprehensive controls become available. This dynamic adjustment resolves the contradiction by making the interface versatile when needed but simple during normal operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses a state-detection circuit to continuously monitor the entertainment device's state (standby vs. active) and provides feedback to the control circuit. Based on this feedback, the user interface automatically adjusts which options are presented to the user. This feedback mechanism ensures the interface complexity matches the actual device state, preventing user confusion while maintaining full functionality when appropriate.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the user interface shows all available options, then the adaptability is improved, but the ease of operation deteriorates due to user confusion and errors

Engineering Contradiction:
ImproveadaptabilityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The user interface applies local quality by showing different levels of detail in different contexts. When the entertainment device is in standby mode, only essential power-related options are shown. When the device is active, additional control options become visible. This localized adaptation of information density maintains adaptability while improving ease of operation by preventing overwhelming users with irrelevant options.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The interface dynamically changes its content based on real-time detection of the entertainment device's state. The control circuit receives state information from the state-detection circuit and dynamically generates appropriate UI elements. This dynamic behavior ensures the interface is adaptive to device state while maintaining simplicity and ease of operation at all times.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If the state-detection circuit continuously monitors the entertainment device state, then the measurement precision is improved, but the energy consumption increases

Engineering Contradiction:
Improvestate detection accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The state-detection circuit performs periodic monitoring of the entertainment device state rather than continuous monitoring. The control circuit polls the device state at appropriate intervals and triggers UI updates only when state changes are detected. This periodic action maintains accurate state detection while significantly reducing energy consumption compared to continuous monitoring.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The state-detection circuit is designed to detect state changes autonomously using the existing electrical coupling and ground loop infrastructure. It leverages the natural electrical characteristics of the connected device to determine its state without requiring additional active sensing components that would consume extra energy. This self-service approach maintains measurement precision while minimizing energy usage.

Inventive Principle:
Principle #25Self-service

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

Facilitates intuitive and error-reduced user interaction by dynamically modifying the user interface to reflect the device's state, enhancing the user experience and reducing confusion.

Implementation Method 1

a state-detection circuit coupled to at least one pin in the input connector, where, when the entertainment device is electrically coupled to the input connector, the state-detection circuit establishes a ground loop between the electronic device and the entertainment device

Methodology Applied
Scientific EffectElectrical coupling detection through voltage measurement: Ohm's Law

Data Source

PatentEP4270203B1Determining device state using a state-detection circuit
Publication Date: 2026.05.13 B & W GRP LTD
  • EP4270203B1 patent drawingFigure 1
  • EP4270203B1 patent drawingFigure 2
  • EP4270203B1 patent drawingFigure 3

AI summary

An electronic device configured to detect whether there is electrical coupling between an entertainment device and an input connector using a state-detection circuit; identify a type of entertainment device by providing, to the entertainment device, a set of first control commands associated with different types of entertainment devices until, in response, content activity is detected via the input connector; determine a provider of the type of entertainment device by providing, to the entertainment device, a set of second control commands associated with different providers of the type of entertainment device until a change in a state of the entertainment device is detected via the input connector and the state-detection circuit; based on the detected electrical coupling, the identified type, and the determined provider, generate user-interface information that specifies a user interface for display on a portable electronic device; and transmit the generated user-interface information to the portable electronic device.