Location History:
- Hellerup, DK (2008 - 2011)
- Smørum, DK (2011 - 2015)
- Lyngby, DK (2015)
- Frederiksberg, DK (2018 - 2019)
- Frederiksberg C, DK (2019)
Company Filing History:
11 out of 722 
4 out of 4 Years Active: 2008-2019
Title: Ulrik Kjems: Innovator in Digital Audio Technology
Introduction
Ulrik Kjems is a prominent inventor based in Smørum, Denmark, known for his significant contributions to digital audio technology. With a total of 14 patents to his name, Kjems has developed innovative solutions that enhance audio processing and noise reduction.
Latest Patents
Among his latest patents is a multi-band noise reduction system and methodology for digital audio signals. This invention focuses on producing a noise-reduced digital audio output signal from a noisy digital audio signal. The system operates on multiple sub-band signals derived from the digital audio signal and includes an adaptive signal-to-noise ratio estimator. This estimator filters various signal-to-noise ratio estimates using time-varying low-pass filters, allowing for adaptable cut-off frequencies based on the noise characteristics of the audio signal.
Another notable patent is the microphone array signal processing system. This system features a digital buffer that stores first and second digital audio signals. It includes a beamformer analyzer that determines noise statistics based on segments of the audio signals. The coefficients calculator then computes a set of fixed beamformer coefficients, which are applied to the audio signals to produce a noise-reduced output.
Career Highlights
Ulrik Kjems has worked with notable companies in the audio technology sector, including Oticon A/S and Retune DSP ApS. His experience in these organizations has allowed him to refine his skills and contribute to advancements in digital audio processing.
Collaborations
Kjems has collaborated with talented individuals in the field, including Michael Syskind Pedersen and Thomas Bo Elmedyb. These partnerships have fostered innovation and the development of cutting-edge audio technologies.
Conclusion
Ulrik Kjems stands out as a key figure in the realm of digital audio innovation. His patents and career achievements reflect his dedication to improving audio technology and enhancing user experiences.