Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10687122 | Concept for determining the quality of a media data stream with varying quality-to-bitrate | Christian Schmidmer, Michael Keyhl, Matthias Obermann | 2020-06-16 |
| 9037435 | Device and method for determining a sample rate difference | Christian Schmidmer, Michael Keyhl | 2015-05-19 |
| 8228385 | Apparatus for determining information in order to temporally align two information signals | Michael Keyhl, Christian Schmidmer | 2012-07-24 |
| 7680056 | Apparatus and method for extracting a test signal section from an audio signal | Michael Keyhl, Christian Schmidmer | 2010-03-16 |
| 7024259 | System and method for evaluating the quality of multi-channel audio signals | Thomas Sporer, Karlheinz Brandenburg | 2006-04-04 |
| 6975254 | Methods and devices for coding or decoding an audio signal or bit stream | Ralph Sperschneider, Martin Dietz, Andreas Ehret, Karlheinz Brandenburg, Heinz Gerhaeuser +2 more | 2005-12-13 |