Display Device Remote Controller Wireless Interference Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices experience unintended successive button inputs due to interference from electronic appliances using the same frequency bandwidth as remote controllers, leading to user inconvenience and potential malfunctions.
Innovation Solution
Incorporating a communicator in the display device to periodically check for request packets from the remote controller and forcibly release buttons if packets are not received within a predetermined time, and a buffer in the remote controller to manage press and release events to prevent accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a remote controller uses a wireless frequency bandwidth for short-range communication, then control functionality is improved, but interference from other electronic appliances using the same frequency causes button input errors
Solution Approach 1:
The display device monitors incoming packets from the remote controller and provides feedback by detecting whether expected packets are received within predetermined time periods. When a packet is missing or delayed, the system triggers a release event to correct the button state, ensuring accurate control despite wireless interference
Solution Approach 2:
The system establishes predetermined time periods for expected packet reception before interference occurs. By setting these time thresholds in advance, the display device can proactively detect and correct potential button input errors before they affect operation, preventing successive unintended button presses
2Reliability
If the display device monitors packet reception to prevent button repeats, then button input accuracy is improved, but system complexity increases due to additional monitoring and control logic
Solution Approach 1:
The display device's controller automatically monitors packet reception and self-corrects button states without requiring external intervention or complex external systems. The controller uses built-in timing logic to detect missing packets and autonomously triggers release events, simplifying the overall system architecture while maintaining high reliability
Data Source
AI summary
Disclosed are a display device and a remote controller controlling same. The display device comprises a communication unit for receiving a request packet periodically transmitted from the remote controller including a plurality of buttons, wherein the request packet includes an event associated with a first button among the plurality of buttons; an identification unit for periodically identifying whether the request packet is received within a first time section; and a control unit for, when periodic reception of the request packet is stopped within the first time section, controlling the operation of the display device to forcibly perform a release event of the first button.