Digital Audio Broadcasting Data Formatting via Byte Offset Shifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital radio broadcasting systems, such as HD Radio, face inefficiencies in data transmission due to the need for escape characters, which result in non-deterministic protocols and bandwidth inefficiencies, particularly when the number of escape characters is low, leading to potential delays and suboptimal data delivery.
Innovation Solution
The implementation of a data pre-conditioning method that identifies and shifts absent byte values to eliminate the need for escape characters, using byte codes to ensure deterministic data formatting and efficient bandwidth allocation, thereby enabling more reliable and timely data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If escape characters are used to handle absent byte values in data transmission, then data integrity is maintained, but protocol complexity increases and bandwidth efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-conditioning the data before transmission. Specifically, absent byte values are identified and replaced with indicator bytes that mark their presence. This preprocessing step eliminates the need for escape characters during transmission, simplifying the protocol while maintaining data integrity. The receiver can then reconstruct the original data by interpreting these indicator bytes.
2Reliability
If escape characters are used to handle absent byte values, then data integrity is maintained, but bandwidth efficiency decreases due to non-deterministic protocols
Solution Approach 1:
The patent changes the parameter representation by replacing variable-length escape character sequences with fixed-length indicator bytes. This parameter transformation makes the protocol deterministic, as the transmission format becomes predictable and uniform. The fixed structure allows for more efficient bandwidth utilization compared to the variable-length escape character approach.
3Adaptability or versatility
If traditional data formatting with escape characters is used, then compatibility with existing systems is maintained, but transmission latency increases
Solution Approach 1:
By performing data pre-conditioning before transmission, the patent eliminates the need for escape character processing during transmission and reception. This preliminary transformation reduces the number of processing steps required, thereby decreasing transmission latency while maintaining compatibility through the standardized indicator byte format.
Data Source
AI summary
A data unit for transmitting data in a digital broadcasting system includes a first payload field, and a first byte code field having a value indicating an offset of data in the first payload field with respect to an absent value. A method for formatting the data unit includes: providing data for a payload field for a data unit, wherein the data includes an absent byte value, determining an offset between an absent byte value and other data in the payload field, shifting the data in the payload field by the offset to produce shifted bytes, and inserting a byte code in the data unit, wherein the byte code indicates the offset. A transmitter for transmitting the data units, and a receiver for receiving the data units are also provided.