Multi-Channel ACS Circuit with Interlaced Pipelined Processing
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Solution Overview
Problem
Existing multi-channel ACS/ACSO circuits require significant resources and are limited by their ability to process only a single symbol per symbol time, restricting throughput and frequency, leading to inefficient use of hardware bandwidth.
Innovation Solution
A multi-channel ACS/ACSO unit that employs interlaced multiple-channel data signals and pipelining with multiple clocked storage stages to efficiently process multiple channels, allowing for higher throughput and reduced resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If standard ACS/ACSO circuits are used for multi-channel processing, then channel processing capability is provided, but resource consumption increases significantly and throughput is limited to single symbol per symbol time
Solution Approach 1:
The patent combines multiple channel processing functions into a single ACS/ACSO unit by merging the adder, compare, select, and offset units to handle multiple channels sequentially. This allows the circuit to process multiple channels using shared hardware resources rather than requiring separate dedicated circuits for each channel, thereby reducing overall resource consumption while maintaining multi-channel processing capability.
Solution Approach 2:
The patent implements periodic action by using a channel select signal that cycles through different channels in a periodic manner. The circuit processes one channel at a time in sequence, with each channel receiving processing during its designated time slot. This time-division multiplexing approach enables the single unit to handle multiple channels efficiently, improving productivity without proportionally increasing device complexity.
2Productivity
If standard ACS/ACSO circuits operate at higher clock speeds, then throughput increases, but the circuit cannot process multiple channels simultaneously due to single symbol limitation
Solution Approach 1:
The patent segments the processing of multiple channels into distinct time slots using a channel select signal. Instead of attempting to process all channels simultaneously at high clock speeds, the circuit divides the processing task into sequential segments, where each channel is processed in turn. This segmentation allows the circuit to maintain stable clock operation while achieving multi-channel processing capability through time-division multiplexing.
3Reliability
If multiple separate ACS units are used for each channel, then each channel can be processed independently, but hardware bandwidth is inefficiently used and area consumption increases
Solution Approach 1:
The patent creates a universal ACS/ACSO unit that can process multiple channels through time-division multiplexing. The same adder, compare, select, and offset units are reused for each channel processing task, making the circuit multi-functional. This universal design maintains independent processing capability for each channel while significantly reducing the total hardware area compared to having separate dedicated units for each channel.
Data Source
AI summary
A circuit for a multi-channel add-compare-select unit is disclosed. The circuit includes a compare unit and a datapath. The datapath is coupled to the compare unit, and includes a number of adder units, a selection unit (which is coupled to the adder units), and a number of clocked storage stages.