Company Filing History:
2 out of 2 
1 out of 2 
1 out of 45 Years Active: 1987-1991
Title: The Innovations of Philip J Wilson
Introduction
Philip J Wilson is a notable inventor based in San Diego, CA, with a significant contribution to the field of adaptive signal processing. He holds five patents that showcase his expertise in reconstructing voice signals and improving transform coding techniques. His work has had a lasting impact on the technology used in audio processing and telecommunications.
Latest Patents
Wilson's latest patents include innovative methods and apparatus for reconstructing non-quantized adaptively. One of his patents describes a system that incorporates noise shaping, where the spectral envelope is scaled before generating bit allocation and energy substitution. This process is achieved after dequantization by generating spectral envelope information for each block of transform coefficients based on side information. The method involves transforming blocks of de-quantized transform coefficients and generated transform coefficients from the transform domain into the time domain.
Another significant patent is for an adaptive transform coder that features a long-term predictor. This invention focuses on removing periodicity from a speech signal in a transform coder before quantization. The method includes determining the pitch in sample blocks, calculating a periodicity value based on the pitch, and generating a revised block of difference samples by subtracting the periodicity value from the corresponding sample. This innovative approach enhances the efficiency of adaptive transform coding.
Career Highlights
Throughout his career, Wilson has worked with reputable companies such as Pacific Communication Science, Inc. and Pacific Communications Sciences, Inc. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in audio technology.
Collaborations
Wilson has collaborated with notable individuals in his field, including Harprit Chhatwal and David T Wang. These collaborations have further enriched his work and led to significant innovations in signal processing.
Conclusion
Philip J Wilson's contributions to the field of adaptive signal processing through his patents and career achievements highlight his role as a leading inventor. His innovative methods continue to influence the development of audio processing technologies.