Company Filing History:
Years Active: 2009-2010
Title: Innovations of Geoffrey Spence
Introduction
Geoffrey Spence is a notable inventor based in Malvern, GB. He has made significant contributions to the field of signal processing, holding 2 patents that showcase his innovative approaches to complex problems.
Latest Patents
One of Geoffrey's latest patents is a method for signal separation. This method allows for the separation of source signals from a composite signal by expressing the composite signal as a series of values of signal amplitude. The source signals exhibit periodicities similar or equal to p. The composite signal is divided into sections, which form respective rows of a matrix X, where successive rows represent successive sections. A singular value decomposition of the matrix X is performed to obtain two singular vector matrices U and V, along with a singular value matrix λ. An independent component analysis is then conducted on one of the singular vector matrices to derive an independent component matrix and an associated component matrix. This process results in estimated separated signal modulation envelopes and cyclets.
Another significant patent by Geoffrey is a method for dynamic blind signal separation. This method generates initialization information by processing an immediately preceding data window. This information is utilized to initialize the orthogonality of data in a subsequent window. The initialized data undergo decorrelation with small update angles using a Jacobi technique. This process produces orthonormal signals that are then separated using independent component analysis with small angle updates. The method can be implemented in an acquisition phase to separate signals and identify desired signals, as well as in a subsequent phase for further refinement.
Career Highlights
Geoffrey Spence is currently associated with Qinetiq Limited, where he applies his expertise in signal processing. His work has contributed to advancements in the field, particularly in the areas of signal separation and analysis.
Collaborations
Geoffrey has collaborated with notable colleagues, including Ira James Clarke and John G McWhirter. Their combined efforts have furthered the development of innovative solutions in signal processing.
Conclusion
Geoffrey Spence's contributions to signal processing through his patents and collaborations highlight his role as a significant inventor in the field. His innovative methods continue to influence advancements in technology and signal analysis.