Wireless Video Uplink Transmitter Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a demand for wireless video communication systems that can transmit high-bandwidth video signals over long distances without the need for aesthetic-compromising cables, particularly for applications where video displays are placed far from video sources, such as in modern home entertainment setups with flat-screen TVs and projectors.
Innovation Solution
The system employs an uplink transmitter that sends a wireless uplink initialization frame with synchronization and data sequences to establish a connection with the video source, using repeated synchronization and data symbols across multiple frequency bins, and synchronizes with downlink transmissions to ensure reliable communication, utilizing techniques like Orthogonal Frequency-Division Multiplexing (OFDM) and Discrete-Fourier-Transform (DFT) symbols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to replace cables for aesthetic reasons and installation convenience, then ease of operation and aesthetics are improved, but reliability and data integrity may deteriorate due to potential interference and signal loss over distance
Solution Approach 1:
The patent implements a preliminary connection initialization phase where synchronization sequences are exchanged before actual video data transmission. This preliminary action establishes timing and frequency alignment, ensuring reliable communication is set up in advance to prevent signal loss and interference during operation
Solution Approach 2:
The system incorporates feedback mechanisms through acknowledgment frames and error detection codes transmitted in both uplink and downlink directions. This feedback allows the receiver to request retransmission of corrupted data, maintaining connection reliability despite wireless interference
2Adaptability or versatility
If wireless transmission is used to transmit high-bandwidth video signals over long distances, then flexibility in display placement is improved, but data integrity and signal quality may deteriorate due to distance and interference
Solution Approach 1:
The video data transmission is segmented into discrete video frames that are individually encoded and transmitted. This segmentation allows for error detection and correction on a per-frame basis, preventing complete signal loss even when transmission over long distances causes degradation
Solution Approach 2:
The system dynamically adjusts transmission parameters such as modulation scheme, coding rate, and symbol repetition based on channel conditions. When transmission distance increases or interference is detected, parameters are changed to prioritize signal integrity, ensuring video quality is maintained despite distance-related degradation
3Reliability
If synchronization sequences with multiple repetitions are used to establish reliable connection, then connection reliability is improved, but transmission time and data rate may deteriorate
Solution Approach 1:
The patent uses a limited number of synchronization sequence repetitions (exactly two) - enough to achieve reliable detection without excessive redundancy. This partial action approach balances reliability requirements with time efficiency, avoiding unnecessary transmission delays while ensuring robust connection establishment
Data Source
AI summary
Some demonstrative embodiments include devices, systems and/or methods of wireless video communication. Some embodiments include an apparatus including a downlink receiver to receive a wireless downlink video transmission from a video source module, and an uplink transmitter to transmit to the wireless video source module a wireless uplink transmission. Other embodiments are described and claimed.