Broadcast Receiver Memory Offsets for Burst Error Correction

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Solution Overview

Problem

Digital radio broadcasting systems face challenges with error protection, particularly in burst errors, which conventional error correction mechanisms struggle to address effectively, leading to data loss and corruption, especially in mobile reception scenarios where signal disturbances are common.

Innovation Solution

The proposed solution involves assigning offset information to data sets to enable correct placement in a receiver's memory, allowing for re-sorting and error correction of transmission errors, thereby improving error protection and data integrity by transmitting data in a non-re-sorted manner and using error correction data to correct errors at the receiver.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional error correction mechanisms are used, then single bit errors can be eliminated, but burst errors cause data loss and corruption

Engineering Contradiction:

Improveerror correction capabilityVSAvoiddata loss in burst errors

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The data stream is segmented into individual data sets with assigned offset information, allowing selective re-sorting and error correction of specific segments affected by burst errors while preserving intact segments

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Offset information is assigned to data sets in advance before transmission, enabling the receiver to re-sort data sets to their correct positions even when burst errors disrupt the transmission sequence

Inventive Principle:

Principle #10Preliminary action

2Reliability

If data is transmitted in re-sorted manner for error correction, then error correction capability improves, but transmission complexity increases

Engineering Contradiction:

Improveerror protectionVSAvoidtransmission and reception processing

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Offset information is assigned to data sets before transmission, so that the receiver can autonomously re-sort data sets without complex real-time processing, reducing transmission complexity while maintaining error correction capability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Offset information acts as an intermediary that carries positioning data through the transmission channel, enabling simple re-sorting operations at the receiver without requiring complex error correction algorithms

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If additional bandwidth is allocated for redundant error correction data, then error correction capability improves, but useful data rate reduces

Engineering Contradiction:

Improveerror correction capabilityVSAvoiduseful data rate

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Error correction is applied selectively to individual data sets affected by burst errors rather than requiring redundant data for entire transmission blocks, reducing the overall bandwidth overhead for error correction

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system uses the transmitted data sets themselves, combined with offset information, to perform self-correction at the receiver without requiring separate redundant error correction channels, maintaining useful data rate while providing error correction

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS7895496B2Transmitter for transmitting information data and receiver for receiving information data

Publication Date: 2011.02.22 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

AI summary

A transmitter for transmitting information data present in a plurality of data sets comprises an assigner for assigning offset information to one or more data sets of the plurality of data sets, the offset information indicating where the data set is to be written in a memory of a receiver. Furthermore, the transmitter comprises a transmitting unit for transmitting a plurality of data sets and the offset information associated with the data set. Hereby, it is possible to effect improved error correction as opposed to the prior art.