John M Vaughan

Title: John M. Vaughan and Digital Signal Processing

Introduction

John M. Vaughan is an inventor associated with Malvern, Great Britain, and the National Research Development Corporation. His recorded patent concerns recovering spectral information from digital signals composed of discrete pulses.

Latest Patents

Vaughan’s listed patent, “Processing of Digital Signals,” describes a method and apparatus for analyzing a train of uniformly or non-uniformly shaped electrical pulses. The signal is applied to a surface acoustic wave (SAW) spectrum analyzer, whose output envelopes represent the power spectrum across a selected frequency range. Spectral information can then be derived from those outputs, including through integration over time.

The patent also describes using the technique with laser Doppler velocity measurement. In that application, detected photons scattered from moving objects or particles produce pulses, and the intervals between pulses carry information about their velocity. Vaughan is credited with 1 patent in the supplied information.

Career Highlights

Vaughan’s documented work connects digital signal analysis with measurement techniques used to study motion. The patent’s proposed approach uses pulse spacing to extract spectral information, with a potential application in analyzing particle or object velocities in a laser-illuminated scattering volume.

Collaborations

The supplied information identifies Michael Alldritt and Christopher J. Oliver as Vaughan’s coworkers. It does not specify their roles in the patent or describe particular joint projects.

Conclusion

John M. Vaughan’s recorded invention applies SAW spectrum analysis to digital pulse trains and outlines a laser Doppler application for deriving velocity-related information from pulse spacing.