Optically Encoded Video Frames for In-Band Equipment Control
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Solution Overview
Problem
Existing data transfer methods, such as video streaming and MIDI file distribution, are inconvenient and inefficient, requiring separate channels for non-video data, leading to fragmented and suboptimal experiences.
Innovation Solution
Embedding optically encoded images within video frames allows for in-band data transmission, enabling robust data transfer that survives video processing and transcoding, with decoding occurring at the receiver to control equipment or devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data are transferred using separate channels (e.g., video streaming for video content, separate downloads for course material), then data transfer can occur, but the process becomes fragmented and inconvenient
Solution Approach 1:
The patent combines multiple data transfer functions into a single video stream by embedding optically encoded data within video frames. This allows course material, notes, images, and other supplementary data to be transferred alongside video content through the same channel, eliminating the need for separate downloads and simplifying the user experience.
Solution Approach 2:
The video stream is designed to serve multiple functions simultaneously: delivering video content, embedding optically encoded data, and providing control signals. This multi-functional approach allows a single transmission channel to handle what previously required multiple separate systems, reducing operational complexity.
2Loss of information
If optically encoded images are embedded within video frames, then in-band data transmission is achieved, but the video signal complexity increases
Solution Approach 1:
The patent embeds optically encoded images within video frames by inserting them into the blanking intervals or unused portions of the video signal. This nesting approach allows data to be hidden within the existing video structure without requiring a completely new transmission system, maintaining compatibility while adding functionality.
Solution Approach 2:
Optically encoded images serve as an intermediary mechanism for data transmission. Rather than directly modifying the video content, the system uses optical codes as a mediator that can be embedded in the video stream and later decoded to extract the embedded data, preserving the original video quality while enabling data transfer.
3Loss of information
If standard stereo audio transfer is used for MIDI data, then data can be transmitted, but the stereo aspect of the audio is destroyed
Solution Approach 1:
The patent transitions MIDI data transmission from the audio dimension to the visual dimension by embedding optically encoded images within video frames. This dimensional shift allows control data to be transmitted without interfering with audio quality, as the optical codes are extracted from the video component rather than the audio stream.
Data Source
AI summary
Data is encoded into one or more optically encoded images. The optically encoded images are then inserted as image data into a video sequence—i.e., in video frames. Data are transmitted in-band within the video, via any conceivable video distribution channel or format. The video may be trans-coded as required—because the data are optically encoded, any video processing that even crudely preserves the frame images will preserve the optically encoded data. This scheme of in-band data transfer in video is very robust. A video receiving apparatus receives the video, inspects the image data from video frames in memory, detects optically encoded images in the image data, and decodes the optically encoded images to recover the data. The frames carrying optically encoded images are typically discarded and not rendered to a display. The receiver controls connected equipment, other than a display (e.g., a musical instrument), based on the extracted data.