Andreas Hoelzer

This inventor holds 50 USPTO granted patents and 4 published patent applications, plus 11 CIPO patents and 5 EPO patents, primarily in Audio Coding. Top assignees: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v., Dolby International Ab, Friedrich-Alexander-Universitat Erlangen-Nürnberg. Active years: 2012-2026.

USPTO Granted Patents = 50 (Patent Applications = 4)

% Patents Active = 98.0

CIPO Patents = 11 (Patent Applications = 1)

EPO Patents = 5 (Patent Applications = 2)

Average Co-Inventor Count = 5.5

ph-index = 9

Forward Citations = 215(Granted Patents)

Company Filing History:

49 out of 4,917

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

patents

7 out of 1,022

Dolby International Ab

patents

2 out of 116

Friedrich-Alexander-Universitat Erlangen-Nürnberg

Koninklijke Philips Corporation N.v.

patents

where one patent can have more than one assignee

Years Active: 2012-2026

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Areas of Expertise:

Audio Coding

Frequency-Domain

Multi-Channel

Audio Encoder

Audio Decoder

Transform Length

Spatial Upmix

Residual Signals

Bandwidth Extension

Object Remapping

Audio Channels

Encoding Techniques

50 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12658193 - Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal (2026-06-16),

2. 12488804 - Frequency-domain audio coding supporting transform length switching (2025-12-02),

3. 12380903 - Apparatus and method for screen related audio object remapping (2025-08-05),

4. 12380899 - Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals (2025-08-05),

5. 11984131 - Concept for audio encoding and decoding for audio channels and audio objects (2024-05-14),

6. 11900955 - Apparatus and method for screen related audio object remapping (2024-02-13),

7. 11862182 - Frequency-domain audio coding supporting transform length switching (2024-01-02),

8. 11743668 - Renderer controlled spatial upmix (2023-08-29),

9. 11657826 - Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals (2023-05-23),

10. 11527254 - Apparatus and method for screen related audio object remapping (2022-12-13),

11. 11488610 - Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension (2022-11-01),

12. 11343631 - Compatible multi-channel coding/decoding (2022-05-24),

13. 11227616 - Concept for audio encoding and decoding for audio channels and audio objects (2022-01-18),

14. 11184728 - Renderer controlled spatial upmix (2021-11-23),

15. 10984809 - Frequency-domain audio coding supporting transform length switching (2021-04-20),

Title: **Andreas Hoelzer: A Pioneer in Audio Technology**

Introduction

Andreas Hoelzer is an esteemed inventor based in Erlangen, Germany, renowned for his significant contributions to the field of audio technology. With an impressive portfolio of 46 patents, Hoelzer has established himself as a leader in innovative audio encoding and decoding systems.

Latest Patents

Among his latest patents are groundbreaking inventions focusing on audio processing. One notable invention is a concept for audio encoding and decoding for audio channels and audio objects. This audio encoder is equipped with an input interface that receives various audio channels, audio objects, and related metadata. It features a mixer that combines these elements to create pre-mixed channels, which include audio data from both channels and objects. The core encoder then processes this information, while a metadata compressor enhances efficiency by compressing the associated metadata.

Another recent patent involves an apparatus and method for screen-related audio object remapping. This invention enables the generation of loudspeaker signals by utilizing an object metadata processor. The processor calculates the position of audio objects based on their relation to the screen size, ensuring optimal sound reproduction depending on whether the audio objects are screen-related or not.

Career Highlights

Hoelzer has worked with distinguished organizations that include the Fraunhofer Society for the Advancement of Applied Research and Dolby International. His tenure at these companies has allowed him to influence the development of cutting-edge audio technologies, contributing to advancements in sound engineering.

Collaborations

Throughout his career, Hoelzer has collaborated with esteemed colleagues, including Johannes Hilpert and Juergen Herre. These partnerships have fostered innovation and further enhanced the impact of his work on the audio technology landscape.

Conclusion

Andreas Hoelzer has made remarkable strides in the realm of audio innovation, amassing 46 patents that showcase his ingenuity and commitment to advancing sound technology. His contributions, particularly in audio encoding and decoding, continue to shape the future of audio experiences across various platforms.