Receiver ADC Path Switching for Channel-Selective Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional receivers are large and consume excessive power, making them inefficient in terms of size and energy usage.
Innovation Solution
The development of an energy-efficient receiver system that includes an Internet Protocol (IP) low-noise block-downconverter (LNB) and intermediate frequency (IF) processing modules, which dynamically adjust power consumption based on selected channels by utilizing narrowband and wideband signal paths, optimizing power usage through configurable amplifiers, mixers, filters, and analog-to-digital converters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional receivers process all received signals through full signal paths, then complete signal processing capability is maintained, but power consumption increases excessively
Solution Approach 1:
The receiver is divided into multiple independent signal paths (first signal path for first channel, second signal path for second channel), each capable of being independently activated or deactivated. This segmentation allows the system to process only the selected channel through its dedicated path while keeping other paths inactive, thereby reducing overall power consumption while maintaining the capability to process multiple channels when needed.
Solution Approach 2:
The receiver employs dynamic configuration where signal paths are selectively activated based on channel selection. When a specific channel is selected, only its corresponding signal path is activated; other paths are deactivated. This dynamic adaptation allows the system to optimize power consumption in real-time based on operational requirements while preserving full signal processing versatility when multiple channels need to be processed simultaneously.
2Reliability
If conventional receivers activate all components continuously, then signal processing performance is maintained, but device size and power consumption increase
Solution Approach 1:
Different signal paths are configured with different quality levels based on local requirements. Each signal path is optimized for its specific channel with appropriate filtering, amplification, and processing components activated only when that channel is selected. This local quality approach ensures that each path maintains high signal processing performance for its designated channel while avoiding the overhead of maintaining all paths at full performance levels continuously.
Solution Approach 2:
The system changes operational parameters dynamically by switching between different signal path configurations. When a channel is selected, the corresponding path's parameters (gain, filtering, processing intensity) are adjusted to optimal values. When the path is inactive, these parameters are reduced or deactivated, thereby maintaining signal processing performance when needed while reducing power consumption during idle states.
3Adaptability or versatility
If conventional receivers process multiple channels simultaneously through full paths, then channel versatility is achieved, but power consumption becomes excessive
Solution Approach 1:
The receiver architecture segments the signal processing into independent parallel paths, each dedicated to a specific channel. This allows the system to activate only the necessary number of paths based on how many channels need to be processed simultaneously. When only one channel is selected, only one path is active; when multiple channels are selected, multiple paths are activated, providing versatile channel processing capability while keeping power consumption proportional to the actual processing load.
Data Source
AI summary
One or more circuits may comprise at least one first-type analog-to-digital converter (ADC) and at least one second-type ADC. The circuit(s) may be operable to receive a plurality of signals, each of which may comprise a plurality of channels. The circuit(s) may be operable to digitize a selected one or more of the channels. Which, if any, of the selected channels are digitized via the at least one first-type ADC and which, if any, of the selected channels are digitized via the at least one second-type ADC, may be based on which of the plurality of channels are the selected channels and/or based on power consumption of the circuit(s). A bandwidth of each first-type ADC may be on the order of the bandwidth of one of the received signals. A bandwidth of each second-type ADC may be on the order of the bandwidth of one of the plurality of channels.