RF Receiver Data Transfer During Guard Intervals

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Solution Overview

Problem

Existing RF signal receivers in systems like DVB-T face interference issues due to internal and external disturbances, which are not effectively suppressed by current noise reduction measures, leading to errors in data extraction.

Innovation Solution

Implementing a controlled data transmission system where internal data elements transfer signals only during the guard intervals of RF signals, analyzed by a control machine to avoid interference with the received RF symbols, using a device comprising a radio frequency tuner, ADC, demodulator, and data interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If data interface elements continuously transfer data, then productivity is improved, but internal noise and disturbances increase causing errors in RF signal processing

Engineering Contradiction:

Improvedata transfer rateVSAvoidinternal noise and disturbances

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the data transfer process by restricting it to specific time intervals (guard intervals) rather than continuous transfer. The control machine identifies guard intervals in the RF signal and enables data interface elements to transfer data only during these intervals, thereby separating data transfer from RF signal processing periods and eliminating internal noise interference.

Inventive Principle:

Principle #1Segmentation

2Reliability

If noise suppression measures are implemented, then signal quality is improved, but device complexity increases

Engineering Contradiction:

Improvesignal qualityVSAvoidnoise suppression measures

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements periodic action by scheduling data transfers to occur only during guard intervals of the RF signal. The control machine continuously monitors the RF signal to identify guard intervals and periodically enables data interface elements to transfer data during these intervals, creating a rhythmic pattern of data transfer that naturally avoids interference with RF signal processing.

Inventive Principle:

Principle #19Periodic action

3Productivity

If data transfer occurs during RF signal processing, then productivity is improved, but measurement precision deteriorates due to crosstalk

Engineering Contradiction:

Improvedata transfer efficiencyVSAvoidRF signal extraction accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent extracts the data transfer function from the continuous operation and relocates it to specific time slots (guard intervals). By taking out data transfer from the continuous processing stream and placing it only during guard intervals when no RF signal processing occurs, the patent eliminates crosstalk between data interface signals and RF signal processing, ensuring high measurement precision while maintaining productivity.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS8098778B2Controlled transmission of data in a data transmission system

Publication Date: 2012.01.17 INFINEON TECHNOLOGIES AG

AI summary

This disclosure relates to controlled transmission of data in a data transmission system. Data from data interface elements may be transmitted in a controlled manner during the guard intervals or cyclic expansions of received RF signals. The received RF signals may be initially analyzed by a receiver to gather its characteristics. Based on the characteristics, the data interface elements are instructed to transfer the data during the guard intervals of the incoming RF signals.