Martin Sehlstedt

This inventor holds 43 USPTO granted patents and 11 published patent applications, plus 2 CIPO patents and 21 EPO patents, primarily in Audio Signal Processing. Top assignees: Telefonaktiebolaget Lm Ericsson (Publ), Abb Ab. Active years: 2003-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Martin Sehlstedt. Retrieved from https://idiyas.com/inventor/martin-sehlstedt

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

USPTO Granted Patents = 43 (Patent Applications = 11)

% Patents Active = 93.0

CIPO Patents = 2

EPO Patents = 21 (Patent Applications = 30)

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 70(Granted Patents)

Location History:

Lule{dot over (a)}, SE (2012)
Tungelsta, SE (2015)
Luieå, SE (2017)
Lulea, SE (2003 - 2019)
Luleå, SE (2012 - 2024)

Company Filing History:

42 out of 27,011

Telefonaktiebolaget Lm Ericsson (Publ)

Years Active: 2003-2026

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Areas of Expertise:

Voice Activity Detection

Noise Estimation

Audio Coding

DTX Hangover

Spectral Shape Estimation

Error Concealment

Envelope Representation

Multi-Channel Audio

43 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12694881 - Methods, encoder and decoder for handling envelope representation coefficients (2026-07-28),

2. 12579987 - Methods for frequency domain packet loss concealment and related decoder (2026-03-17),

3. 12562174 - Noise suppression logic in error concealment unit using noise-to-signal ratio (2026-02-24),

4. 12456483 - Method and device for voice activity detection (2025-10-28),

5. 12354613 - Methods and apparatuses for DTX hangover in audio coding (2025-07-08),

6. 12347446 - Estimation of background noise in audio signals (2025-07-01),

7. 12340812 - Methods for phase ECU F0 interpolation split and related controller (2025-06-24),

8. 12230280 - Spectral shape estimation from MDCT coefficients (2025-02-18),

9. 12002477 - Methods for phase ECU F0 interpolation split and related controller (2024-06-04),

10. 11990145 - Methods, encoder and decoder for handling envelope representation coefficients (2024-05-21),

11. 11900962 - Method and device for voice activity detection (2024-02-13),

12. 11862180 - Spectral shape estimation from MDCT coefficients (2024-01-02),

13. 11705136 - Methods for phase ECU F0 interpolation split and related controller (2023-07-18),

14. 11636865 - Estimation of background noise in audio signals (2023-04-25),

15. 11475903 - Methods and apparatuses for DTX hangover in audio coding (2022-10-18),

Title: The Innovative Journey of Martin Sehlstedt

Introduction: Martin Sehlstedt is an accomplished inventor based in Luleå, Sweden, holding an impressive portfolio of 35 patents. His innovative contributions, particularly in the field of audio signal processing, have significantly advanced technological capabilities within the industry.

Latest Patents: Among his latest inventions, Martin's patents include a revolutionary method for spectral shape estimation from Modified Discrete Cosine Transform (MDCT) coefficients. This method entails decoding a first audio frame and a second audio frame to derive modified coefficients, which are then utilized to determine values of distinct spectral shapes across multiple sub-bands. Additionally, he has developed a sophisticated concealment method that modifies the spectrum magnitude of a substitution frame spectrum responsive to transient conditions in audio signals. These patents showcase his commitment to enhancing audio processing technologies.

Career Highlights: Martin Sehlstedt's career is strongly tied to Telefonaktiebolaget LM Ericsson (publ), where his innovative expertise has been instrumental in pushing the boundaries of audio processing solutions. His contribution to the industry reflects a deep understanding of both theoretical and practical aspects of audio signal technologies.

Collaborations: Throughout his career, Martin has worked collaboratively with notable colleagues such as Stefan Bruhn and Jonas Svedberg. These partnerships have fostered an environment of creativity and innovation, allowing for the development of cutting-edge solutions in their projects.

Conclusion: Martin Sehlstedt exemplifies the spirit of innovation in the field of audio technology. With 35 patents to his name, his work continues to impact the industry positively, securing a legacy as a prominent inventor and collaborator in advancing audio signal processing.

Profile summary based on public USPTO records.