Transmitter quieting for wireless multimedia encoding
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Solution Overview
Problem
Current wireless solutions for multimedia data transmission, such as wireless HDMI, face challenges with 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 implementation of transmitter quieting techniques, where the transmitter is blanked during null intervals, allowing for reduced encoding rates and the insertion of synchronization signals, enabling efficient data transmission without data loss and minimizing interference during spectrum sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uncompressed video is transmitted to support high resolution, then data transmission quality is improved, but power consumption increases and expansion capabilities are limited
Solution Approach 1:
The patent changes the parameter of video encoding from uncompressed to compressed format, reducing the data transmission rate while maintaining acceptable quality. This allows the system to operate at lower power consumption levels while still supporting high-resolution content through efficient compression algorithms
Solution Approach 2:
The system dynamically adjusts the encoding rate and compression level based on available bandwidth, power constraints, and quality requirements. This enables flexible adaptation between uncompressed and compressed modes, optimizing the trade-off between transmission quality and power consumption in real-time
2Reliability
If transmitter operates continuously to maintain data flow, then data transmission reliability is improved, but interference during spectrum sensing increases
Solution Approach 1:
The transmitter operates in periodic cycles, alternating between transmission modes and quieting periods for spectrum sensing. During quieting intervals, the transmitter stops transmitting to allow accurate spectrum sensing, while maintaining data flow continuity through buffering and resynchronization mechanisms that ensure no data is lost
Solution Approach 2:
The system performs preliminary actions by buffering data before transmission and preparing null intervals in advance. This allows the transmitter to temporarily suspend transmission during sensing without losing data, as the buffered content and null interval structure ensure continuous reliable delivery once transmission resumes
3Use of energy by moving object
If encoding rate is reduced to enable transmitter quieting, then power consumption decreases, but data transmission speed decreases
Solution Approach 1:
The system uses partial action by transmitting at reduced encoding rates only during necessary intervals, while utilizing null intervals efficiently. The encoding rate is adjusted to be just sufficient for the transmission requirements, avoiding excessive data rates that would prevent quieting, thereby optimizing the balance between power consumption and transmission speed
Data Source
AI summary
A method includes defining an encoding rate for encoding a set of frames of multimedia data over a period of time, encoding the set of frames at a reduced encoding rate over the period of time such that encoding the set of frames at the reduced encoding rate defines one or more null intervals when data associated with the set of frames is not present during the period of time, transmitting the encoded set of frames via a transmitter, and blanking the transmitter during the one or more null intervals.