Projection Reverse Control via Direct Peripheral Instruction Routing
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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 the instruction before transmitting it to the projected device.
Innovation Solution
The method allows the peripheral device to directly send instructions to the projected device, bypassing the need for intermediate processing by the receiving device, thereby simplifying control instruction transmission and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device processes the user operation before transmitting the instruction to the projected device, then the instruction can be properly formatted and routed, but the latency increases
Solution Approach 1:
The patent divides the instruction transmission path into two separate channels: a control channel for instruction transmission and a data channel for video/audio data. By segmenting the transmission paths, the control instructions can be sent directly from the peripheral device to the projected device without waiting for processing by the electronic device, thereby reducing latency while maintaining reliable instruction delivery through the dedicated control channel.
Solution Approach 2:
The patent introduces a signaling channel as an intermediary mechanism that enables direct communication between the peripheral device and the projected device. This signaling channel acts as a mediator that allows control instructions to bypass the electronic device's processing queue, reducing the latency while ensuring proper routing and formatting of instructions through the established communication protocol.
2Ease of operation
If the electronic device processes and packages the instruction before transmission, then the instruction format is standardized, but the processing time increases latency
Solution Approach 1:
The patent establishes the signaling channel and communication protocol in advance before actual control operations begin. By pre-configuring the instruction formatting rules and transmission protocols, the electronic device eliminates the need for real-time processing and packaging of instructions during operation. The standardized format is agreed upon beforehand, allowing direct transmission without additional processing steps.
3Loss of time
If the peripheral device connects directly to the projected device, then the control latency is reduced, but the connection complexity increases
Solution Approach 1:
The patent makes the projected device multi-functional by enabling it to receive and process both video data and control instructions simultaneously through different channels. The projected device is designed to handle both data reception and control command execution, eliminating the need for separate dedicated control hardware. This universal capability simplifies the overall connection architecture while maintaining low latency direct control.
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.