Inventor

KEYHL MICHAEL

DE7 patents

⚠️ This page may combine multiple inventors who share the name “KEYHL MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FRAUNHOFER GES FORSCHUNG

2 patents

US6101475AAug 8, 2000

Method for the cascaded coding and decoding of audio data

FRAUNHOFER GES FORSCHUNG8 citations72

US5926553AJul 20, 1999

Method for measuring the conservation of stereophonic audio signals and method for identifying jointly coded stereophonic audio signals

FRAUNHOFER GES FORSCHUNG3 citations61

OPTICOM DIPL ING MICHAEL KEYHL

1 patent

US7664231B2Feb 16, 2010

Method and device for quality evaluation of an audio signal and device and method for obtaining a quality evaluation result

OPTICOM DIPL ING MICHAEL KEYHL23 citations86

OPTICOM DIPL ING MICHAEL KEYHL GMBH

1 patent

US10687122B2Jun 16, 2020

Concept for determining the quality of a media data stream with varying quality-to-bitrate

OPTICOM DIPL ING MICHAEL KEYHL GMBH16 citations76

OPTICOM DIPL ING M KEYHL GMBH

1 patent

US7680056B2Mar 16, 2010

Apparatus and method for extracting a test signal section from an audio signal

OPTICOM DIPL ING M KEYHL GMBH7 citations65

SCHMIDMER CHRISTIAN

1 patent

US9037435B2May 19, 2015

Device and method for determining a sample rate difference

SCHMIDMER CHRISTIAN0 citations42

KEYHL MICHAEL

1 patent

US8228385B2Jul 24, 2012

Apparatus for determining information in order to temporally align two information signals

KEYHL MICHAEL1 citations42