Bluetooth Remote Reconnection With Buffered Key Input
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Solution Overview
Problem
In scenarios requiring real-time responses, the response time for reconnecting Bluetooth devices is too long when key press information is transmitted after re-connection advertising, leading to user confusion and potential loss of data due to noise disturbances.
Innovation Solution
The method involves temporarily recording key-input information in a buffer memory and attaching it to the payload of a re-connection advertising packet to trigger the re-establishment of the Bluetooth connection, allowing the host terminal to respond directly to the key-input information without waiting for a full connection to be re-established.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If key-input information is transmitted after re-connection advertising, then the Bluetooth connection can be re-established, but the response time is too long causing user confusion
Solution Approach 1:
The patent applies preliminary action by buffering key-input information before the Bluetooth connection is re-established. The remote controller device records key-input information in a buffer memory during the duration since resuming from power-off mode into power-on mode and before re-establishing the Bluetooth connection. This allows the host terminal to execute operations immediately upon receiving the re-connection advertising packet with the buffered key-input information attached, without waiting for the full connection re-establishment process, thereby reducing response time and improving user experience
2Reliability
If standard re-connection advertising is used, then Bluetooth connection can be recovered, but noise disturbances may cause data loss
Solution Approach 1:
The patent applies preliminary action by pre-buffering key-input information in the remote controller device before transmission. The buffered key-input information is attached to the payload of the re-connection advertising packet in advance. This ensures that even if noise disturbances occur during transmission, the host terminal can recover the connection and retrieve the pre-prepared key-input information, preventing data loss and improving reliability
Solution Approach 2:
The patent uses the re-connection advertising packet as an intermediary carrier to transmit buffered key-input information from the remote controller device to the host terminal. By attaching the key-input information to the payload of the re-connection advertising packet, the system creates a reliable transmission channel that combines connection recovery functionality with data transmission, protecting against noise-induced data loss
Data Source
AI summary
A Bluetooth communication method is suitable for a remote controller device. The remote controller device is configured to be Bluetooth-paired with a host terminal. The Bluetooth communication method includes following steps. In a lasting duration since the remote controller device resumes from a power-off mode into a power-on mode and a Bluetooth connection is not yet re-established between the remote controller device and the host terminal, key-input information generated by the remote controller device is temporarily recorded in a buffer memory of the remote controller device. The key-input information temporarily recorded in the buffer memory is attached to a payload of a re-connection advertising packet. The re-connection advertising packet is transmitted, and the re-connection advertising packet is configured to trigger re-establishing of the Bluetooth connection between the remote controller device and the host terminal.