Wireless Display Adapter Transcoding for Power and Resolution
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Solution Overview
Problem
Current wireless display technologies for multimedia data face challenges such as high power consumption and limited expansion capabilities due to the need for dedicated hardware and the transmission of uncompressed video, which restricts the support for higher-resolution data transmission.
Innovation Solution
The method involves identifying available channels in a digital broadcast spectrum using a channel identifier and transmitting data from a communication device to receiving devices in a digital broadcast format, allowing for wireless transmission of multimedia data, including audio, video, and graphics, while potentially transcoding data to adapt to different formats and protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uncompressed video is transmitted using proprietary wireless display solutions, then video quality is maintained, but power consumption increases and expansion capabilities are limited
Solution Approach 1:
The patent introduces a wireless display adapter as an intermediary device that bridges the source device and display device. This adapter handles the complex transcoding and wireless transmission tasks, allowing the source device to operate with lower power consumption while maintaining video quality through proper format conversion to H.264/MPEG-4 AVC compression standards.
Solution Approach 2:
The system dynamically changes video format parameters by converting between different compression standards (H.264/MPEG-4 AVC, VC-1, WMV3, MPEG-2, Motion JPEG) based on the capabilities of the display device. This parameter adaptation enables efficient power usage while maintaining acceptable video quality through appropriate compression level selection.
2Reliability
If dedicated hardware is used for wireless display transmission, then transmission reliability is improved, but device complexity and cost increase
Solution Approach 1:
The wireless display adapter is designed as a universal device that can work with multiple source devices (set-top boxes, DVD players, game consoles, computers) and multiple display devices (HDTVs, projectors). It supports multiple video formats and protocols (HDMI, DisplayPort, DVI, VGA inputs; HDMI, DisplayPort, DVI, VGA outputs), eliminating the need for dedicated hardware for each device combination while maintaining transmission reliability.
Solution Approach 2:
By positioning the wireless display adapter as an intermediary between source and display devices, the system centralizes the complex wireless transmission functionality in a single device. This approach maintains reliability by ensuring proper format conversion and error handling while reducing overall system complexity compared to requiring dedicated hardware in each endpoint device.
3Manufacturing precision
If uncompressed video transmission is used, then video fidelity is preserved, but support for higher-resolution data transmission is limited
Solution Approach 1:
The wireless display adapter dynamically adjusts video compression parameters and resolution settings based on the capabilities of the connected display device. It supports conversion to various resolutions (720p, 1080p, 4K) and compression formats (H.264, VC-1, WMV3, MPEG-2, Motion JPEG), enabling higher-resolution transmission while maintaining acceptable video fidelity through adaptive quality settings.
Solution Approach 2:
The system employs dynamic parameter adjustment where the video encoding format, resolution, and compression level are automatically adapted based on the real-time capabilities of the display device. This dynamic approach allows the system to optimize for both video fidelity and resolution expansion capability depending on the specific use case and hardware capabilities.
Data Source
AI summary
In general, this disclosure relates to techniques for transmitting data using one or more identified channels of a spectrum. One example method comprises identifying, with a first communication device, at least one channel currently available in a digital broadcast spectrum, and receiving, with the first communication device, data sent from a second communication device. The method further comprises transmitting the data from the first communication device in the at least one identified channel of the digital broadcast spectrum, wherein the transmitted data complies with a digital broadcast format.