Digital Radio Data Transmission via Frequency Segmentation
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Solution Overview
Problem
Digital radio broadcasting faces limitations in transmitting large data files due to data rate constraints, leading to delayed delivery and loss of time context, which hinders the quick availability of large data files such as videos and educational content.
Innovation Solution
Divide large data files into chunks and distribute them across multiple frequencies based on available bandwidth, using a data distribution table to ensure timely reconstruction without losing time context, leveraging periodic data rate lease information and utilizing primary and background tuners for efficient data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large data files are transmitted through a single frequency, then data completeness is ensured, but transmission time increases substantially causing loss of time context
Solution Approach 1:
The patent divides large data files into multiple smaller data chunks and transmits them simultaneously across multiple frequencies. This segmentation allows the system to maintain data completeness through distributed transmission while significantly reducing the time required for each individual chunk to be transmitted, thereby preventing loss of time context.
Solution Approach 2:
The patent introduces a new dimension for data transmission by utilizing multiple frequencies simultaneously rather than sequentially transmitting through a single frequency. This dimensional expansion from one frequency channel to multiple frequency channels enables parallel transmission, reducing overall transmission time while maintaining complete data delivery through coordinated chunk reconstruction.
2Loss of time
If data transmission rate is increased to reduce delay, then time context is preserved, but data accuracy and reliability may be compromised
Solution Approach 1:
By segmenting large data files into smaller chunks, the system can transmit each chunk at higher rates across multiple frequencies without compromising overall data accuracy. The segmentation allows for parallel transmission with built-in redundancy and error checking capabilities for each individual chunk, maintaining reliability while achieving faster aggregate transmission speeds.
Solution Approach 2:
The patent implements feedback mechanisms where the receiving device monitors the transmission of data chunks across multiple frequencies, tracks which chunks have been successfully received, and requests retransmission of any missing or corrupted chunks. This feedback system ensures data accuracy is maintained even as transmission rates increase through parallel frequency usage.
3Productivity
If multiple frequencies are used for parallel data chunk transmission, then transmission speed increases, but system complexity increases
Solution Approach 1:
The patent employs a universal data distribution table format and standardized chunk addressing scheme that can be applied across multiple frequencies. The receiving device uses a unified reconstruction algorithm that works regardless of the number of frequencies involved, allowing the system to scale from 2 to many frequencies without proportionally increasing complexity. The same basic protocol and data structures serve all frequency channels.
Solution Approach 2:
The patent introduces a data distribution table as an intermediary structure that coordinates transmission across multiple frequencies. This table acts as a roadmap, specifying which data chunks are transmitted on which frequencies, enabling the system to manage complex multi-frequency transmissions through a single organizing mechanism. The intermediary simplifies the coordination overhead by providing a centralized reference that all transmitting and receiving devices can follow.
Data Source
AI summary
Large data transmission in digital radio broadcasting system and method are disclosed. A first channel information of tuned frequency indicates the availability of the data distribution table. Second channel information contains the data distribution info table (list of frequencies mapped to data chunk identifiers). Data chunks have a unique id. Digital broadcast radio receiver receives data distribution tables and parses through the currently tuned frequencies data distribution table. The receiver has information on how to collect the distributed data. Receiver uses its primary tuner to receive the data chunks in the current tuned frequency. Rest of the data chunks are collected by the background tuners in a parallel fashion by tuning to required frequencies. Once all chunks are collected, data file is reconstructed and available for presentation to the user.