Location History:
- Malvern Wells, GB (1987 - 1991)
- Worcestershire, GB (1989 - 1995)
- Malvern, GB (1985 - 2010)
Company Filing History:
10 out of 703 
3 out of 1,200 
3 out of 562 
Years Active: 1985-2010
Title: The Innovations of John G McWhirter
Introduction
John G McWhirter, an esteemed inventor based in Malvern, GB, has been a driving force in the realm of signal processing innovation. With a remarkable portfolio consisting of 17 patents, McWhirter has made significant contributions to the field, particularly in the areas of blind signal separation.
Latest Patents
Among McWhirter's most recent patents is the method of blind signal separation for convolutively mixed signals. This innovative approach begins by processing signals to achieve second-order independence. By determining ranges of signal delay and rotation parameters, the processed signals are further transformed using elementary paraunitary matrices, ensuring substantial improvements in independence across the parameter ranges. Through iterative processing, McWhirter successfully unmixed the final output signals.
Another notable patent involves dynamic blind signal separation, which uses initialization information derived from processing a prior data window. This information is pivotal for initializing orthogonality in subsequent data windows. Utilizing a Jacobi technique for decorrelation with small update angles, this method produces orthonormal signals, which are then separated through Independent Component Analysis (ICA). This ingenious system can operate in both acquisition and later phases, allowing for the separation of desired signals and the enhancement of immediate data results through iterative updates.
Career Highlights
Throughout his career, McWhirter has held positions at prestigious organizations such as the Secretary of State for Defence in Her Britannic Majesty's Government and the National Research Development Corporation. His experiences in these institutions have undoubtedly influenced his innovative thinking and application of technology in signal processing.
Collaborations
John G McWhirter has collaborated with esteemed professionals in his field, including John V McCanny and Terence John Shepherd. These partnerships have likely fostered a rich environment for creativity and advancement in their respective technologies, further enhancing the impact of McWhirter's inventions.
Conclusion
John G McWhirter's contributions to the field of signal processing through his numerous patents highlight his expertise and dedication to innovation. His methods for blind and dynamic signal separation represent significant advancements that have the potential to transform the way signals are processed, solidifying his legacy as a leading inventor in this vital area of technology.