PRBS Channelization Circuit for Flexible Parallel Bit Outputs
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Solution Overview
Problem
Conventional pseudo-random binary sequence (PRBS) generators face limitations in producing multiple parallel output bits, leading to increased area and circuit complexity, as well as higher power consumption, due to the need for multiple single-bit generators or limited multi-bit outputs.
Innovation Solution
A PRBS generator component that can select between a single parallel output channel and multiple multi-bit parallel output channels, utilizing channelization circuitry to extend the number of states in the transition matrix, allowing for on-demand selection of channel bit-rates and reducing implementation costs by minimizing the number of generators required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple single-bit PRBS generators are used to produce multi-bit sequences, then the quantity of parallel output bits is improved, but the PRBS area and circuit complexity increase
Solution Approach 1:
The patent merges multiple single-bit PRBS generators into a single multi-bit PRBS generator that produces multiple parallel output bits simultaneously. This consolidation reduces the overall circuit complexity and area while maintaining the capability to generate multi-bit sequences, directly resolving the contradiction between quantity of output bits and circuit complexity
Solution Approach 2:
The single multi-bit PRBS generator is designed to provide multiple functions by generating multiple parallel output bit sequences simultaneously. This universal generator can serve multiple channels or applications that would otherwise require separate generators, reducing both area and complexity while improving the quantity of parallel output bits
2Quantity of substance
If multiple single-bit PRBS generators are used to produce multi-bit sequences, then the quantity of parallel output bits is improved, but the power consumption increases
Solution Approach 1:
By merging multiple single-bit generators into one multi-bit generator, the patent reduces the total power consumption while maintaining the same parallel output capability. The single generator operates more efficiently than multiple separate generators would, resolving the contradiction between quantity of output bits and power consumption
3Quantity of substance
If a PRBS generator outputs multiple parallel output bits, then the quantity of parallel output bits is improved, but the degree of the underlying polynomial limits the number of parallel bits
Solution Approach 1:
The patent implements dynamic channelization that allows the PRBS generator to adapt its output configuration based on the degree of the underlying polynomial. The system can dynamically adjust the number of parallel output channels and their bit rates, providing flexibility while maximizing the use of the polynomial degree to generate the required number of parallel bits
4Adaptability or versatility
If multiple PRBS generators are implemented to provide multiple channels, then the adaptability for different channel configurations is improved, but the implementation cost increases
Solution Approach 1:
The patent creates a universal PRBS generator that can be configured to provide multiple different channel configurations through dynamic channelization. This single multi-functional generator replaces the need for multiple dedicated generators, reducing implementation cost while maintaining adaptability for different channel requirements
Data Source
AI summary
An example embodiment includes an n-bit parallel pseudo-random binary sequence (PRBS) generator coupled to channelization circuitry to control the channelization circuitry to select from among a single channel n-bit output pattern from the PRBS generator and a number of multiple channel output patterns from the PRBS generator. The number of multiple channel output patterns can correspond to respective sub-patterns of the single channel n-bit output pattern.