Image Data Channel Multiplexing Without Extra Interface Lines
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Solution Overview
Problem
Existing video output devices face challenges in transmitting and receiving a larger number of pieces of image data without increasing the number of bit lines in the channel interface.
Innovation Solution
An image processing device that converts image data from an RGB format to a VCbCr 422 format, allowing for the transmission of 8 spare bits, which are used to transmit additional video channels by time-dividing and combining the data through a single channel interface using a combiner and splitter, eliminating the need for additional lines or interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of bit lines in the channel interface is increased to transmit more video channels, then the transmission capacity is improved, but the device complexity and connection difficulty increase
Solution Approach 1:
The patent segments video data into multiple packages, each containing a portion of the video channel data. These segmented packages are transmitted sequentially through the existing channel interface rather than requiring multiple simultaneous bit lines, thereby increasing transmission capacity without increasing physical interface complexity
Solution Approach 2:
The patent transitions from a spatial dimension approach (multiple bit lines transmitting data simultaneously) to a temporal dimension approach (single bit line transmitting segmented data packages sequentially). This dimensional change allows more video channels to be transmitted through the same physical interface by utilizing time-division multiplexing
2Quantity of substance
If the number of bit lines in the channel interface is increased to transmit more video channels, then the transmission capacity is improved, but the connection difficulty increases
Solution Approach 1:
By segmenting video data into transmittable packages that fit within the existing channel interface constraints, the patent eliminates the need for additional bit lines and associated connection infrastructure, thereby maintaining ease of connection while increasing transmission capacity
Solution Approach 2:
The patent makes the existing channel interface multi-functional by enabling it to transmit multiple video channels through time-division multiplexing of segmented data packages, rather than requiring dedicated bit lines for each channel. This universal approach allows a single interface to handle multiple channels without increasing connection complexity
Data Source
AI summary
An image processing device includes a channel interface, including a data channel, a vertical synchronization line, a horizontal synchronization line, and a data enable line, and a combiner configured to convert N pieces of first image data (where N is a positive integer greater than or equal to 2) into second image data having a different image format, time-divide and output the second image data to the data channel, output N vertical synchronization signals for the second image data to the vertical synchronization line, and output N data enable signals for the second image data to the horizontal synchronization line and the data enable line.