Bluetooth Remote Control Relay for Set-Top Box Packet Loss
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Solution Overview
Problem
The increasing number of wireless devices in homes leads to a worsening wireless environment, causing inevitable packet loss in the connection between remote control devices and display devices, making immediate control difficult.
Innovation Solution
A display device equipped with a communication unit for Bluetooth connectivity, a controller to transmit connection and configuration information, and a remote control device with a database for key index mapping, allowing for immediate control without RF transmission loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used between remote control device and display device, then convenience of operation is improved, but packet loss occurs due to worsening wireless environment
Solution Approach 1:
The display device acts as an intermediary between the remote control device and the set-top box. The remote control device sends control signals to the display device via Bluetooth, which then forwards them to the set-top box, eliminating the need for direct communication between the remote control and set-top box and reducing packet loss in the wireless environment.
Solution Approach 2:
The display device pre-stores connection information about the set-top box (such as IR remote control codes and device identifiers) in its memory. This preliminary preparation allows the display device to quickly and reliably forward control commands without needing to establish real-time connections or retrieve information during operation, thus improving reliability.
2Speed
If direct RF transmission is used from remote control device to set-top box, then control speed is improved, but RF transmission loss occurs in poor wireless environments
Solution Approach 1:
The display device serves as a mediator that receives control signals from the remote control device via Bluetooth and forwards them to the set-top box using stored connection information. This approach avoids direct RF transmission from the remote control to the set-top box, eliminating RF transmission loss while maintaining control functionality.
Solution Approach 2:
The system replaces the direct RF transmission mechanism with an alternative communication path using Bluetooth and pre-stored connection information. This substitution eliminates the harmful RF transmission loss while achieving the same control objective through a different technical approach.
3Adaptability or versatility
If connection information is transmitted during each control operation, then adaptability is improved, but transmission time increases causing delay
Solution Approach 1:
The display device pre-stores connection information about the set-top box (including device identifiers and IR remote control codes) in its memory before actual control operations. This preliminary action eliminates the need to transmit or retrieve connection information during each control operation, significantly reducing delay while maintaining adaptability to different devices.
Solution Approach 2:
Instead of transmitting actual connection information during operation, the system uses pre-copied and stored connection data in the display device's memory. This copying approach allows rapid access to device-specific information without repeated transmission, reducing time loss while maintaining device compatibility.
Data Source
AI summary
One embodiment of the present disclosure provides a display device characterized by comprising: a display which outputs content; a communication unit which communicates with a remote control device using Bluetooth; and a control unit which controls the communication unit, wherein the control unit transmits an ack response including connection and configuration information of a set-top box when a connection request is received from the remote control device.