| 9922658 |
Method and apparatus for increasing the strength of phase-based watermarking of an audio signal |
Michael Arnold, Xiaoming Chen, Ulrich Gries |
2018-03-20 |
| 9607623 |
Method and apparatus for determining watermark symbols in a received audio signal that can contain echoes, reverberation and/or noise |
Xiaoming Chen, Michael Arnold, Ulrich Gries |
2017-03-28 |
| 9542954 |
Method and apparatus for watermarking successive sections of an audio signal |
Xiaoming Chen, Michael Arnold, Ulrich Gries |
2017-01-10 |
| 9210483 |
Method and apparatus for watermarking an AC-3 encoded bit stream |
Xiaoming Chen, Michael Arnold, Ulrich Gries |
2015-12-08 |
| 9165559 |
Method and apparatus for frequency domain watermark processing a multi-channel audio signal in real-time |
Ulrich Gries, Michael Arnold, Xiaoming Chen |
2015-10-20 |
| 9147402 |
Method and apparatus for detecting which one of symbols of watermark data is embedded in a received signal |
Xiaoming Chen, Michael Arnold, Ulrich Gries |
2015-09-29 |
| 8688993 |
Method and apparatus for determining and using the sampling frequency for decoding watermark information embedded in a received signal sampled with an original sampling frequency at encoder side |
Walter Voessing, Ulrich Gries |
2014-04-01 |
| 8315835 |
Method and apparatus for setting a detection threshold given a desired false probability |
Jun Tian, Jeffrey Adam Bloom |
2012-11-20 |
| 8281137 |
Method and apparatus for determining whether or not a reference pattern is present in a received and possibly watermarked signal |
Michael Arnold, Ulrich Gries, Walter Voessing |
2012-10-02 |
| 8259873 |
Method and apparatus for correlating two data sections |
Walter Voessing, Michael Arnold |
2012-09-04 |
| 8194803 |
Method and apparatus for regaining watermark data that were embedded in an original signal by modifying sections of said original signal in relation to at least two different reference data sequences |
Michael Arnold |
2012-06-05 |
| 8175325 |
Method and apparatus for encoding/decoding symbols carrying payload data for watermarking of an audio or video signal |
Ulrich Schreiber |
2012-05-08 |
| 8081757 |
Blind watermarking of audio signals by using phase modifications |
Walter Voessing |
2011-12-20 |
| 8041073 |
Decoding watermark information items of a watermarked audio or video signal using correlation |
Walter Voessing |
2011-10-18 |
| 7760790 |
Method and apparatus for transmitting watermark data bits using a spread spectrum, and for regaining watermark data bits embedded in a spread spectrum |
Walter Voessing |
2010-07-20 |
| 7688711 |
Method and apparatus for transforming a digital audio signal and for inversely transforming a transformed digital audio signal |
— |
2010-03-30 |
| 7634031 |
Method and apparatus for encoding symbols carrying payload data for watermarking an audio or video signal, and method and apparatus for decoding symbols carrying payload data of a watermarked audio or video signal |
Walter Voessing |
2009-12-15 |
| 7318023 |
Method for detecting the quantization of spectra |
— |
2008-01-08 |
| 4601018 |
Banked memory circuit |
Allen J. Baum |
1986-07-15 |