Lille, France

Raphael Nicolas Greff

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: A-Volute. Active years: 2014-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Raphael Nicolas Greff. Retrieved from https://idiyas.com/inventor/raphael-nicolas-greff

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 6(Granted Patents)


Location History:

  • Loos, FR (2014)
  • Lille, FR (2018 - 2020)

Company Filing History:


Years Active: 2014-2020

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3 patents (USPTO):Explore Patents

Title: Innovations of Raphael Nicolas Greff

Introduction

Raphael Nicolas Greff is a notable inventor based in Lille, France. He has made significant contributions to the field of audio technology, particularly in the area of multichannel audio signals. With a total of 3 patents, Greff's work focuses on enhancing the reproduction and visualization of sound.

Latest Patents

One of Greff's latest patents is a "Method for reproducing spatially distributed sounds." This invention involves a sophisticated process of receiving time-dependent input audio signals and performing a time-frequency transform. It determines active and reactive directional vectors from different input channels, allowing for the positioning of virtual sound sources relative to a reference listening point. The method also includes distributing time-frequency signal values to electroacoustic transducers based on the spatial configuration of the sound sources.

Another significant patent is the "Method for visualizing the directional sound activity of a multichannel audio signal." This method visualizes directional sound activity by determining a directional sound activity vector from virtual sound sources. It calculates contributions of these vectors within spatial subdivisions and displays a graphical representation of the directional sound activity level.

Career Highlights

Greff is currently employed at A-volute, a company known for its innovative audio solutions. His work at A-volute has allowed him to push the boundaries of audio technology and contribute to advancements in sound reproduction and visualization.

Collaborations

Throughout his career, Greff has collaborated with talented individuals such as Hong Cong Tuyen Pham and Paul Allais. These collaborations have fostered a creative environment that has led to the development of groundbreaking audio technologies.

Conclusion

Raphael Nicolas Greff is a prominent inventor whose work in audio technology has resulted in valuable patents that enhance sound reproduction and visualization. His contributions continue to influence the field and inspire future innovations.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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