Projection Reverse Control via Direct Peripheral Connection
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Solution Overview
Problem
Long latency occurs when a projected electronic device receives an instruction corresponding to a user operation during projection reverse control due to the need for the receiving device to process and transmit the instruction.
Innovation Solution
The method involves the projected electronic device establishing a direct connection to a peripheral device, allowing the peripheral device to send instructions directly to the projected device, bypassing intermediate processing by the receiving device, thereby simplifying control instruction transmission and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the receiving device processes and transmits user operation instructions through a signaling channel, then reverse control functionality is achieved, but latency increases
Solution Approach 1:
The patent extracts the instruction processing function from the receiving device and relocates it to the projected device. The peripheral device sends instructions directly to the projected device, which processes and executes them locally, eliminating the need for the receiving device to forward these instructions through signaling channels, thus reducing latency while maintaining reverse control functionality
Solution Approach 2:
The patent introduces a direct connection between the peripheral device and the projected device as an intermediary communication path. This new pathway allows user operation instructions to bypass the receiving device's processing and transmission steps, enabling low-latency control while the receiving device continues to handle its own display and rendering functions
2Ease of operation
If the receiving device processes user operations before transmitting instructions, then control accuracy is improved, but response time deteriorates
Solution Approach 1:
The patent inverts the conventional control architecture by allowing the projected device to receive and process user instructions directly, rather than having the receiving device forward processed instructions back to the projected device. This inversion eliminates the round-trip processing delay while the projected device maintains full capability to accurately interpret and execute control commands
Data Source
AI summary
In a projection reverse control method a first electronic device sends a projection picture to a second electronic device. The second electronic device is connected to a peripheral device. The first electronic device establishes a connection to the peripheral device. The first electronic device receives a first instruction from the peripheral device. The first instruction is generated by the peripheral device based on a user operation. The first electronic device performs a corresponding operation according to the first instruction. The first electronic device sends, to the second electronic device, a projection picture after the corresponding operation is performed.