Remote Video Recording via Segmented Bitstream Transmission
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Solution Overview
Problem
Existing video recording systems face limitations in storing large volumes of data due to the limited transmission rates of receiver devices, making it difficult to efficiently record and transmit binary streams of video programs to remote servers.
Innovation Solution
A method where multiple receiver devices collaborate to record a video program by dividing the binary stream into sections based on a calculated compression factor, allowing for efficient transmission to a remote server, and enabling local storage and metadata management to optimize data transfer and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single receiver transmits the binary stream to a remote server, then the recording function is provided, but the transmission rate of the receiver becomes saturated and recording efficiency is low
Solution Approach 1:
The binary stream is divided into multiple sections, with each section assigned to a different receiver for transmission to the remote server. This segmentation allows parallel transmission across multiple receivers, preventing any single receiver's transmission rate from becoming saturated while collectively achieving the full recording throughput.
2Productivity
If multiple receivers transmit data to the remote server, then transmission capacity increases, but coordination complexity and system complexity increase
Solution Approach 1:
A coordination system (remote server or central controller) acts as an intermediary to manage the segmentation and assignment of binary stream sections to different receivers. This intermediary handles the complexity of coordinating multiple receivers, assigning sections based on receiver capabilities, and reassembling the complete recording, thereby enabling scalable parallel transmission without proportionally increasing system complexity.
3Productivity
If the binary stream is divided into sections and distributed across multiple receivers, then transmission load is balanced, but data synchronization and reconstruction complexity increase
Solution Approach 1:
Metadata including section identifiers, sequence information, and receiver assignments is prepared in advance during the segmentation phase. This preliminary organization of data structure information enables the remote server to efficiently reconstruct the complete binary stream by simply following the pre-defined sequence without requiring complex real-time synchronization or analysis of transmitted data segments.
Data Source
Figure 1A~1B
Figure 1C~2B
Figure 3~4
AI summary
The invention relates to a method for remotely recording a video program received in the form of a bitstream by at least one so-called "recording" receiver that must record the video program on a remote server by using a communication network. The method is implemented by each recording receiver and includes, for each recording receiver, steps of: - obtaining (3051) a compression factor of the video program; - dividing (3054) the bitstream into a set of consecutive segments on the basis of the obtained compression factor; - determining (3055) a subset of segments to be sent to the remote server from the set of consecutive segments on the basis of a shift value and the compression factor, the shift value being a remainder from the integer division of a random number, which is determined by the recording receiver, by the compression factor; and - sending the segments from the determined subset of segments to the remote server.