Clockless Pulse Width Generation Using an Inverse Chaotic Map
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Solution Overview
Problem
Conventional techniques for generating pulse signals with programmable widths in the time-domain rely on clocking signals, resulting in discretized pulse widths and high source current requirements, limiting the precision and flexibility of clockless operations.
Innovation Solution
The use of inverse chaotic maps for continuous and clockless operations in programmable pulse generators (PPGs) to transform precursor pulse signals into target pulse signals with specified widths, eliminating the need for clocking signals and enabling precise control of pulse widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If clocked or ring oscillator techniques are used for pulse generation, then pulse widths can be generated with discrete time steps, but the pulse widths are discretized to integer multiples of oscillator periods and require substantial source current
Solution Approach 1:
The patent extracts and removes the clocking signal component from the pulse generation system. By eliminating the clock signal and counter mechanism, the invention achieves continuous pulse width control without discrete time steps, thereby reducing the source current requirement while maintaining precision through the chaotic map's inherent time-stretching property
Solution Approach 2:
The patent replaces the mechanical clocked system (ring oscillator with counter) with a chaotic map-based system. This substitution transitions from a discrete, periodic mechanism to a continuous, deterministic chaotic system that can achieve fine pulse width resolution without requiring fast switching and substantial source current
2Ease of operation
If ring oscillator with counter is used, then pulse falling edge can be generated after finite number of periods, but the implementation requires fast switching and substantial source current
Solution Approach 1:
The patent inverts the conventional approach by using an inverse chaotic map instead of a forward chaotic map. This inversion allows the system to stretch time continuously and generate precise pulse widths without requiring fast switching operations, thereby reducing power consumption while maintaining ease of control through the bit sequence input
3Measurement precision
If clocked systems are used to augment resolution, then pulse widths can be measured in discrete time steps, but the pulse widths are still discretized to integer multiples of oscillator period
Solution Approach 1:
The patent extracts and removes the clocking system entirely from the pulse generation architecture. By eliminating the oscillator and counter components, the invention achieves continuous pulse width control with arbitrary precision determined by the bit sequence length, without the device complexity of clocked systems and without discretization to oscillator periods
Data Source
AI summary
Technologies are provided for generation of programmable pulse signals using inverse chaotic maps, without reliance on a clocking signal. Some embodiments of the technologies include an apparatus that can receive a sequence of bits having a defined number of bits, where the sequence of bits represent a desired continuous pulse signal having a programmable width in time-domain. The apparatus can also can receive a precursor continuous pulse signal having an arbitrary width in time-domain that fits within the dynamic range of the apparatus. The apparatus can generate the desired continuous pulse signal by transforming the precursor continuous pulse signal using the sequence of bits and an inverse chaotic map.