Wireless Screen Casting for Group Content Sharing
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Solution Overview
Problem
Smartphones lack the capability to conveniently share visual content with groups due to their small display screens and lack of external video output, making it impractical to present content to multiple people without additional devices.
Innovation Solution
A method and device for wirelessly receiving, formatting, and presenting screen content on a virtual screen of another telecommunications device, allowing for the selection and transmission of content to multiple devices for simultaneous display, using wireless connections such as Bluetooth or cellular networks, and supporting encryption and real-time streaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If smartphone display screen size is kept small for portability, then device portability is improved, but content sharing capability with groups deteriorates
Solution Approach 1:
The patent introduces a wireless display system as an intermediary between the smartphone and external display devices. The smartphone casts its screen content wirelessly to external displays, allowing group viewing without requiring the smartphone itself to have a large screen. This mediator approach resolves the contradiction by enabling content sharing capability while maintaining the small, portable form factor of the smartphone.
Solution Approach 2:
The patent enables smartphones to perform multiple functions: they can both maintain their small portable form factor and simultaneously serve as content sources for external displays. By adding wireless casting functionality, the smartphone becomes a universal device that can be used for personal portable computing while also serving group presentation needs, thus resolving the contradiction between portability and content sharing capability.
2Ease of operation
If external video output is added to smartphones, then content sharing capability is improved, but device complexity increases
Solution Approach 1:
The patent replaces physical mechanical connections (external video output ports and cables) with wireless communication technology. Instead of adding physical ports and associated hardware, the smartphone uses wireless protocols to transmit display content to external devices. This substitution achieves content sharing capability while avoiding the complexity increase that would result from adding physical external video output components.
3Ease of operation
If multiple devices are required for content presentation, then content sharing capability is improved, but loss of time increases
Solution Approach 1:
The patent implements automatic device discovery and connection establishment for wireless casting. The smartphone automatically detects available external display devices and establishes connections without requiring manual configuration or setup by the user. This self-service approach enables content sharing capability while minimizing the time loss associated with device setup and configuration.
Data Source
AI summary
Screen content from a first telecommunication device, such as a smartphone, is cast wirelessly and received by a second telecommunications device. The received screen content is formatted for presentation on the second telecommunications device. Screen content from among the received screen content may be selected for transmitting to a third telecommunications device. The selected screen content is transmitted to the third telecommunications device for presentation on a virtual screen of the third telcommunications device.