All-Digital Fine Pulse Generation for Maximum IR-UWB Transfer Rate
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Solution Overview
Problem
Existing all-digital pulse generators for IR-UWB communication systems face limitations in achieving maximum transfer rates due to the need to remove one batch of fine pulses, which reduces the transfer rate and power consumption efficiency.
Innovation Solution
The method involves generating a plurality of pulses delayed at predetermined intervals, creating reverse pulses by dividing input pulses and passing them through inverters and logic gates to produce fine pulses, allowing for the selection of either the rising or falling edge of the input pulse, thus eliminating the need to remove unnecessary pulses and enhancing transfer rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If fine pulses are generated from both rising edge and falling edge of input signal, then pulse quantity increases, but transfer rate is limited due to need to remove one batch of pulses
Solution Approach 1:
The patent extracts only the necessary pulse batch (either rising edge or falling edge) based on system requirements, eliminating the need to generate and then remove unnecessary pulses. This is achieved by selectively configuring the pulse generation circuit to operate on only one edge type, thereby maintaining maximum transfer rate while providing sufficient pulse quantity for IR-UWB communication.
Solution Approach 2:
Instead of generating pulses from both edges and removing one batch (the conventional approach), the patent inverts the logic by generating pulses from only one edge type from the beginning. This reversal eliminates the wasteful removal process and maximizes transfer rate while maintaining adequate pulse quantity.
2Use of energy by moving object
If all-digital pulse generator is used, then power consumption is reduced, but transfer rate is limited
Solution Approach 1:
The patent introduces dynamic selectability into the all-digital pulse generator, allowing the system to dynamically choose between generating pulses from rising edges or falling edges based on operational requirements. This dynamic configuration enables the system to achieve maximum transfer rate when needed while maintaining the low power consumption benefits of the all-digital architecture.
Solution Approach 2:
The patent changes the operational parameter of the pulse generator by allowing selection between different edge types (rising or falling) rather than being fixed. This parameter change enables the system to optimize transfer rate while maintaining low power consumption, resolving the contradiction between energy efficiency and productivity.
Data Source
AI summary
There are provided a pulse generator capable of securing a maximum transfer rate of an IR-UWB signal, while maintaining low power consumption characteristics of an all-digital scheme, and a method for generating a fine pulse. A bandwidth of a fine pulse is determined by adjusting a difference in delay time between two adjacent pulses and a pulse is generated by selecting only one of a rising edge and a falling edge of an input pulse, and thus there is no need to remove an unnecessary batch of pulses afterwards and a transfer rate is enhanced.