Feed Circuit Spectral Suppression for Weak-Signal Data Transmission
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Solution Overview
Problem
Existing data transmission methods often disrupt weak signals, such as magnetic resonance signals, due to interference from digital transmission data, particularly when frequencies align with system operating frequencies, and existing shielding solutions are costly and impractical.
Innovation Solution
The feed circuit determines supplementary digital data to minimize specific frequency portions of the transmission data spectrum by separating payload and supplementary data into coherent blocks with adjustable block lengths and readout clock rates, using a buffer memory and frequency input to ascertain and suppress interfering frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital transmission data is fed directly into the transmission medium, then data transmission efficiency is maintained, but interference with weak signals (such as magnetic resonance signals) occurs due to frequency spectrum overlap
Solution Approach 1:
The patent applies this principle by using the harmful frequency components that cause interference and converting them into beneficial suppressed patterns through deliberate supplementary data insertion. The supplementary data is specifically designed to create destructive interference at the problematic frequencies, thereby eliminating the harmful effect while maintaining overall transmission functionality
Solution Approach 2:
The patent changes the parameter of frequency spectrum distribution by inserting supplementary digital data at strategically determined positions and times. This modifies the spectral characteristics of the transmitted signal, specifically reducing energy at frequencies that cause interference with magnetic resonance signals, while preserving data transmission integrity
2Object-affected harmful factors
If shielding is applied to the feed circuit and transmission medium to reduce interference, then interference with weak signals is reduced, but material cost and device complexity increase substantially
Solution Approach 1:
The patent replaces the mechanical/physical shielding approach with a digital signal processing approach. Instead of using physical barriers (shielding materials, enclosures, spatial separation), the solution uses algorithmic manipulation of digital data streams to achieve frequency spectrum control, thereby eliminating the need for complex physical shielding structures
3Object-affected harmful factors
If shielding or spatial separation is used to prevent interference, then interference reduction is achieved, but ease of operation and system setup become awkward and impractical
Solution Approach 1:
The patent replaces mechanical arrangement considerations (shielding placement, spatial separation distances, physical configuration) with a software/digital solution that operates independently of physical layout. The feed circuit processes digital data streams to control frequency spectrum characteristics, making the system easy to implement without complex mechanical setup or spatial constraints
Data Source
AI summary
A feed circuit accepts a stream of digital payload data and inserts it at predetermined first positions into a stream of digital transmission data. The feed circuit generates supplementary digital data using the stream of digital payload data and inserts it at predetermined second positions into a stream of digital transmission data. The feed circuit feeds the digital transmission data into a transmission medium. Said circuit determines the supplementary digital data in such a way that at least one frequency's portion of a frequency spectrum of the stream of digital transmission data will be minimized.