John D Madden

Title: John D. Madden: Innovator in Continuous Speech Recognition

Introduction

John D. Madden is a notable inventor based in Sunnyvale, California. He has made significant contributions to the field of speech recognition technology. His innovative work has led to the development of a unique apparatus that enhances the way machines understand human speech.

Latest Patents

John D. Madden holds a patent for a Continuous Speech Recognition Apparatus. This invention involves sampling speech or other signals during a time slice of approximately 1/30 second. Spectrum analysis is performed on these samples, producing measures of amplitude across several frequency bands. Each frequency band is characterized by a binary digit indicating the presence or absence of significant amplitude. The binary digits are collectively referred to as a sonogram. Sonograms for several time slices are concatenated, randomized, and decoded using an n-tuple technique to produce a pattern corresponding to the current speech signal. This pattern is learned by superimposing it on an existing vocabulary entry and is subsequently recognized if it is sufficiently similar to one vocabulary entry and different from all others.

Career Highlights

John D. Madden has had a distinguished career, primarily working with Centigram Corporation. His work has focused on advancing speech recognition technologies, which have applications in various fields, including telecommunications and artificial intelligence.

Collaborations

Throughout his career, John has collaborated with notable colleagues such as Iben Browning and Carl L. Berney. These collaborations have contributed to the development and refinement of his innovative technologies.

Conclusion

John D. Madden's contributions to continuous speech recognition technology have paved the way for advancements in how machines interact with human speech. His innovative patent reflects a deep understanding of both technology and linguistics, making him a key figure in the field.