Jürgen Koller

Title: Innovations by Jürgen Koller in Audio Processing

Introduction

Jürgen Koller is a notable inventor based in Wümbach, Germany. He has made significant contributions to the field of audio processing, particularly through his innovative patent that addresses the challenges of time-discrete audio sampled values. His work is recognized for its technical depth and practical applications in audio technology.

Latest Patents

Jürgen Koller holds a patent for a "Method and device for processing time-discrete audio sampled values." This invention involves an integer transform that provides integer output values, executing the TDAC function of a MDCT in the time domain before the forward transform. The method utilizes overlapping windows to achieve a Givens rotation represented by lifting matrices. The process begins with summing time-discrete sampled values of an audio signal on a pair-wise basis to create a vector, which is then sequentially processed with a lifting matrix. After each multiplication, a rounding step ensures that only integers are produced on the output side. By transforming the windowed integer sampled value with an integer transform, a spectral representation with integer spectral values is obtained. The inverse mapping with an inverse rotation matrix and corresponding inverse lifting matrices allows for exact reconstruction of the audio signal.

Career Highlights

Jürgen Koller is associated with the Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V., a leading research organization in applied sciences. His work at this institution has allowed him to explore and develop advanced audio processing techniques that have practical implications in various audio applications.

Collaborations

Throughout his career, Jürgen Koller has collaborated with esteemed colleagues such as Ralf Geiger and Thomas Sporer. These collaborations have contributed to the advancement of audio processing technologies and have fostered a productive research environment.

Conclusion

Jürgen Koller is a prominent figure in the field of audio processing, with a patent that showcases his innovative approach to handling time-discrete audio sampled values. His contributions continue to influence the development of audio technologies, making him a key inventor in this domain.