Context-Aware Remote Control Update via Bi-Directional Interface
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Solution Overview
Problem
Current remote control technology lacks the ability to understand the context of the system it controls, leading to incorrect command execution when switching between connected devices, such as a set-top box and a VCR, resulting in inefficient user experience due to the need for multiple remote controls and outdated code sets.
Innovation Solution
A bi-directional interface between the television and remote control that detects system events, such as input changes, and transmits specific settings to the remote control to ensure correct command execution for the active device, allowing for seamless operation across multiple connected devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a universal remote control is used to control multiple devices, then the number of remote controls is reduced, but the remote control may send commands to the wrong device when switching between inputs
Solution Approach 1:
The system implements feedback by having the television detect system events (input changes) and automatically transmit updated device identification information back to the remote control. This ensures the remote control always has the correct context about which device is currently active, preventing commands from being sent to the wrong device.
Solution Approach 2:
The system performs preliminary action by proactively updating the remote control with device identification information before commands are sent. When an input change occurs, the television immediately transmits the new device context to the remote control, so the remote is prepared with correct information before the next command is executed.
2Reliability
If traditional remote control code sets are used, then compatibility with specific devices is achieved, but outdated code sets fail to work with newer devices
Solution Approach 1:
The system changes the parameter of device identification from static pre-programmed code sets to dynamic event-based transmission. Instead of relying on fixed infrared code sets that may be outdated, the television detects system events and transmits current device identification information, adapting automatically to new devices without requiring updated code tables.
Solution Approach 2:
The system introduces an intermediary mechanism where the television acts as a mediator between the remote control and connected devices. The television receives device identification information and transmits it to the remote control, eliminating the need for the remote control to have direct knowledge of specific device code sets.
3Ease of operation
If the remote control operates without context awareness, then simple operation is maintained, but incorrect commands are sent when switching between devices
Solution Approach 1:
The television provides feedback to the remote control about system events and active device context. This feedback loop ensures the remote control operates with full context awareness, knowing which device is currently active without requiring complex user input or manual device selection.
Solution Approach 2:
The system implements self-service by having the television automatically detect input changes and manage device identification information. The television serves itself by monitoring system events and proactively updating the remote control, eliminating the need for user intervention to maintain correct device context.
Data Source
AI summary
A television includes a remote control, at least two inputs and at least one device, each device connected to one of the inputs. Upon a system event such as changing from one input to another input, the television signals the remote control to change operation of at least one function key.