Transmitter quieting with pre-encoded frames for latency reduction
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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, including encoding and modulating frames to reduce latency, blanking the transmitter during null intervals, and using geo-location-based white space sensing to optimize data transmission while minimizing interference and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If transmitter quieting is implemented to reduce power consumption and manage interference, then power consumption and interference are reduced, but data transmission continuity may be affected
Solution Approach 1:
The system performs preliminary actions by encoding multiple frames ahead of time and preparing null data intervals before transmitter quieting occurs. This ensures that when the transmitter is quieted, the receiver already has sufficient buffered frames to maintain continuous playback without interruption, thus preserving data transmission reliability while enabling power savings.
Solution Approach 2:
The patent implements beforehand cushioning by creating null data intervals and buffering multiple frames in advance. This cushion of pre-prepared data acts as a buffer that absorbs the interruption caused by transmitter quieting, ensuring that the receiver continues to receive valid data throughout the quieting period without experiencing transmission failures.
2Loss of time
If latency is reduced to enable real-time delivery, then real-time delivery is achieved, but encoding and modulation complexity increases
Solution Approach 1:
The system applies preliminary action by pre-encoding and pre-modulating multiple frames before transmission. This allows the encoded frames to be immediately transmitted when the transmission opportunity arises, eliminating the need for real-time encoding during transmission and thus reducing latency while managing complexity through advance preparation.
Solution Approach 2:
The patent employs periodic action by transmitting frames at optimized intervals and using periodic null data intervals between transmissions. This structured periodic approach allows the system to maintain real-time delivery by ensuring frames are transmitted frequently enough to meet latency requirements while allowing processing time between transmissions to manage complexity.
3Reliability
If uncompressed video is transmitted to maintain quality, then video quality is preserved, but bandwidth requirements and power consumption increase
Solution Approach 1:
The patent applies the taking out principle by extracting and transmitting only the essential video data in an optimized format. Rather than transmitting all uncompressed video data continuously, the system extracts key frame information, uses null data intervals for non-critical periods, and transmits only when necessary, thus maintaining acceptable video quality while significantly reducing bandwidth requirements and associated power consumption.
Data Source
AI summary
A method comprises encoding and modulating a first set of frames such that a latency associated with demodulating and decoding the first set of frames is less than a first time interval, encoding and modulating a second set of frames such that a required latency associated with demodulating and decoding the first set of frames is less than a second time interval, transmitting the first set of frames and the second set of frames via a transmitter, and blanking the transmitter during a null interval associated with transmitting the second set of frames, wherein the null interval and the second time interval are less than or equal to the first time interval.