Broadband Data Conversion Using Sub-Band Receive Chains
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Solution Overview
Problem
Conventional methods and systems for data conversion are too large, power intensive, and inflexible, making them costly and inefficient for broadband applications.
Innovation Solution
The system employs a plurality of receive chains to segment the broadband spectrum into sub-bands, each optimized for a specific frequency range, using smaller and less expensive components, and a digital signal processor to manage and process the signals, enabling efficient data conversion and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional data conversion systems are used, then signal processing capability is maintained, but system size becomes too large
Solution Approach 1:
The broadband spectrum is divided into multiple sub-bands, with each receive chain processing a specific sub-band. This segmentation allows the overall system to handle wide bandwidth while each individual chain remains compact, resolving the contradiction between system size and signal processing capability.
Solution Approach 2:
The patent transitions from a single receive chain processing the entire bandwidth to multiple receive chains processing different frequency sub-bands simultaneously. This dimensional change in frequency domain allocation enables parallel processing that reduces per-chain complexity while maintaining overall capability.
2Use of energy by moving object
If conventional data conversion systems are used, then broadband coverage is achieved, but power consumption becomes excessive
Solution Approach 1:
By segmenting the broadband spectrum into sub-bands assigned to different receive chains, the patent enables selective activation of chains based on traffic demands. This reduces overall power consumption while maintaining broadband coverage capability through parallel sub-band processing.
Solution Approach 2:
The system dynamically configures and activates receive chains based on real-time traffic demands and spectrum utilization. This dynamic adaptability allows the system to maintain broadband coverage when needed while reducing power consumption during lower-demand periods.
3Adaptability or versatility
If conventional data conversion systems are used, then data conversion functionality is provided, but system flexibility becomes insufficient
Solution Approach 1:
Each receive chain is designed with universal functionality to process its assigned sub-band, and the digital signal processor coordinates multiple chains to handle various broadband applications. This multi-functional design increases system flexibility while keeping individual chain complexity manageable.
Solution Approach 2:
The system employs dynamic configuration where receive chains can be selectively enabled/disabled and reconfigured based on traffic patterns and service requirements. This dynamic nature enhances flexibility without requiring complex fixed infrastructure.
4Ease of manufacture
If smaller receive chains are used to reduce size, then component cost decreases, but maintaining broadband capability becomes difficult
Solution Approach 1:
The patent divides the broadband spectrum into multiple sub-bands, allowing smaller receive chains to each handle narrower frequency ranges. This segmentation enables the use of lower-cost components while the aggregate system maintains full broadband capability through parallel sub-band processing.
Solution Approach 2:
Multiple smaller receive chains are merged in parallel under a coordinated digital signal processor to achieve the equivalent functionality of a single large broadband receiver. This merging approach reduces individual component costs while preserving overall broadband capability.
Data Source
AI summary
A receiver may receive a signal and process each of a plurality of sub-bands of the received signal via a respective one of a plurality of first-type receive chains. The receiver may utilize a signal output by a first one of the plurality of the first-type receive chains to remove undesired signals from a signal output by a second one of the plurality of the first-type receive chains. The undesired signals may comprise aliases and/or harmonics of one or more signals that fall within a sub-band of the first one of the plurality of the first-type receive chains. The receiver may downconvert, filter, and digitize each of the plurality of sub-bands via a corresponding one of the plurality of the first type receive chains. The received signal may encompass the cable television band, and each of the plurality of sub-bands may comprise a plurality of cable television channels.