Erlangen, Germany

Ralf Geiger

This inventor holds 147 USPTO granted patents and 4 published patent applications, plus 69 CIPO patents and 89 EPO patents, primarily in Audio Encoding (CPC class G10L19-0204). Top assignees: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v., Voiceage Corporation, Dolby International Ab. Active years: 2007-2026.

USPTO Granted Patents = 147 

% Patents Active = 100.0

 

 

Average Co-Inventor Count = 6.5

ph-index = 15

Forward Citations = 688(Granted Patents)

Forward Citations (Not Self Cited) = 454(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Wuembach, DE (2007 - 2008)
  • Wümbach, DE (2009)
  • Ilemenau, DE (2013 - 2014)
  • Nuremberg, DE (2012 - 2023)
  • Ilmenau, DE (2009 - 2024)
  • Erlangen, DE (2012 - 2024)

Company Filing History:


Years Active: 2007-2026

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Areas of Expertise:
Audio Encoding
Low Bitrate
Multichannel Signal
QMF Codec
Noise-Filling
Time-Domain Samples
Signal Processing
Intelligent Gap Filling
Audio Decoding
Subband Values
Temporal Noise Shaping
147 patents (USPTO):Explore Patents

Title: Ralf Geiger: Innovator in Audio Signal Processing

Introduction

Ralf Geiger, based in Erlangen, Germany, is a prolific inventor with an impressive portfolio of 142 patents. His innovations primarily focus on advancements in audio signal processing, contributing significantly to the field through his groundbreaking work.

Latest Patents

Among his latest patents, Ralf has developed an **Apparatus and Method for Generating an Enhanced Signal Using Independent Noise-Filling Identified by an Identification Vector**. This invention provides a sophisticated approach to generate an enhanced signal from an input signal, incorporating a mapping method to achieve spectral values in an enhancement spectral region that are not present in the original input. His technical expertise is also evident in another recent patent: **Resampling Output Signals of QMF Based Audio Codecs**. This apparatus processes audio signals with customizable configuration settings that yield different processing rates, showcasing Ralf’s commitment to pushing the boundaries of audio technology.

Career Highlights

Ralf's career has been marked by his associations with prominent research organizations. He has worked with the Fraunhofer Society for the Advancement of Applied Research, a leading German research institute known for its innovative contributions to various technological fields. Additionally, Ralf was part of Voiceage Corporation, where he was able to leverage his expertise to further enhance audio processing solutions.

Collaborations

Throughout his career, Ralf has collaborated with notable experts, including Sascha Disch and Max Neuendorf. These partnerships have been instrumental in driving forward innovative solutions and enhancing the technological developments in audio signal processing.

Conclusion

Ralf Geiger stands out as an influential inventor in the realm of audio technology. His extensive patent portfolio and collaborative efforts reflect his dedication to innovation, making significant strides in audio signal processing that benefit both industry and research alike.

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