Handheld Terminal Data Sharing via Master-Slave Control
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Solution Overview
Problem
Conventional mobile communication systems lack a data sharing mechanism between remotely located handheld communication terminals, limiting the ability to control and synchronize data between devices.
Innovation Solution
A data sharing system and method that enables a master handheld terminal to control a slave terminal over a communication network by establishing a video conferencing channel using the H324M protocol, allowing for the exchange of screen images and control signals, and updating data in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If direct infrared communication is used for data sharing, then data sharing between handheld terminals is enabled, but the communication range is limited to short distance only
Solution Approach 1:
The patent introduces a mobile communication network as an intermediary medium to enable remote data sharing between handheld terminals. Instead of direct terminal-to-terminal infrared communication, the system uses the network infrastructure (base stations, network controllers) as intermediaries to relay control signals and data between the master and slave terminals, thereby extending the communication range beyond line-of-sight limitations while maintaining data sharing functionality
Solution Approach 2:
The patent segments the communication function into two distinct modes: a video conferencing channel for real-time screen monitoring and control signal transmission, and a data channel for actual data sharing. This segmentation allows the system to leverage existing video conferencing infrastructure for remote control while maintaining dedicated pathways for data synchronization, resolving the contradiction between extended range and data sharing capability
2Length of stationary object
If conventional mobile communication systems are used, then long distance communication is enabled, but no data sharing mechanism between terminals is provided
Solution Approach 1:
The patent makes the mobile communication system universal by enabling it to perform multiple functions: standard voice/data communication plus remote control and data sharing between terminals. The system reuses existing mobile communication infrastructure (channels, protocols, network elements) for the additional data sharing function, thereby providing long-distance communication capability while avoiding the loss of data sharing functionality through multi-functional system design
3Ease of operation
If a video conferencing channel is established for remote control, then real-time screen monitoring is enabled, but communication protocol complexity increases
Solution Approach 1:
The patent applies self-service by having the handheld terminals themselves perform the complex video conferencing setup and control signal exchange without requiring external control equipment or additional infrastructure. The terminals autonomously establish the video conferencing channel, manage the control signal protocols, and handle screen monitoring, thereby simplifying the overall system architecture despite the protocol complexity
Data Source
AI summary
A remote control-based data sharing system and method for handheld terminals over a communication network are provided. The data sharing system includes a master terminal that transmits a control assignment request and displays a screen image received in response to the control assignment request; a slave terminal that selectively assigns a control to the master terminal in response to the control assignment request and operates in accordance with a control signal received from the master terminal; and a network that establishes wireless communication channels with the master and slave terminals for exchanging signals between the master and slave terminals.