Wireless Clone Mode Display Multicast Bandwidth Reduction
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Solution Overview
Problem
Current wireless display technologies face challenges in efficiently managing bandwidth and power consumption when implementing clone mode operations across multiple sinks, particularly in transmitting high-data-rate audio/video streams over wireless interfaces like DisplayPort and HDMI, as they often require multiple copies of streams, leading to increased bandwidth and power usage.
Innovation Solution
The implementation of a wireless multicasting technique using the DisplayPort 1.2 framework, which allows for passthrough mode communication, reduces bandwidth and power consumption by transmitting a single copy of audio/video streams over-the-air, with adaptive protocol mapping and efficient management of control and data packets, enabling transparent cloning across multiple sinks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple copies of audio/video streams are transmitted to support clone mode across multiple sinks, then clone mode functionality is achieved, but bandwidth consumption increases
Solution Approach 1:
The patent merges multiple stream transmissions into a single multicast stream. Instead of transmitting separate unicast copies to each sink, the system transmits one multicast stream that can be received by multiple sinks simultaneously, thereby achieving clone mode functionality while reducing bandwidth consumption.
Solution Approach 2:
The multicast stream serves multiple functions simultaneously - it provides the same functionality as multiple unicast streams would, supporting clone mode across multiple sinks. This universal transmission approach allows a single stream to fulfill the role of multiple individual streams, reducing overall bandwidth usage.
2Adaptability or versatility
If multiple copies of audio/video streams are transmitted to support clone mode across multiple sinks, then clone mode functionality is achieved, but power consumption increases
Solution Approach 1:
The patent combines multiple stream transmission operations into a single multicast transmission. This merging reduces the total processing load and energy consumption associated with transmitting multiple separate stream copies, while still enabling clone mode functionality across multiple sinks.
Solution Approach 2:
The single multicast stream performs the work of multiple unicast streams, providing universal service to multiple sinks. This multi-functional approach reduces power consumption by eliminating redundant transmission operations while maintaining full clone mode capability.
3Adaptability or versatility
If multiple copies of audio/video streams are transmitted to support clone mode, then seamless cloning across multiple sinks is achieved, but the number of stream copies increases
Solution Approach 1:
The patent merges multiple individual stream copies into a single multicast stream. This consolidation reduces the quantity of stream copies from multiple separate transmissions to one unified transmission, while still achieving seamless clone mode operations across multiple sinks through the multicast delivery mechanism.
Data Source
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AI summary
Wireless sinks, such as displays, may receive wirelessly transmitted audio/video information in clone mode. In one embodiment, the same audio/video stream may be provided to a plurality of sinks daisy chained from a wireless receiver.