Location History:
- Southall, EN (1978)
- Needham Market, GB (1979 - 1987)
- Ipswich, GB (1980 - 1990)
Company Filing History:
5 out of 159 
2 out of 1,874 
Years Active: 1978-1990
Title: Alan J Greaves: Innovator in Speaker Verification and Active Filters
Introduction
Alan J Greaves is a notable inventor based in Ipswich, GB, recognized for his contributions to technology with a total of seven patents. His work primarily focuses on advancements in speaker verification systems and active filter technologies.
Latest Patents
Among his latest patents, one significant innovation is the "Speaker verification using memory address." This invention enhances the accuracy and reliability of speaker recognition systems. Another noteworthy patent is related to an active filter design, described as "A fourth (or higher) order filter has a series resonant section terminated by a parallel resonant section, both based on frequency dependent negative resistance (FDNR)." This design utilizes a capacitive potential divider and a unity-gain amplifier to improve filter performance.
Career Highlights
Throughout his career, Alan has worked with prominent organizations, including the Post Office and British Telecommunications Public Limited Company. His experience in these companies has significantly influenced his innovative approach to technology.
Collaborations
Alan has collaborated with esteemed colleagues such as John Mortimer Rollett and Phillip Ernest Greenaway, contributing to various projects and advancements in their respective fields.
Conclusion
Alan J Greaves stands out as a significant figure in the realm of technology, with his innovative patents and contributions to speaker verification and active filter systems. His work continues to impact the industry positively.