Christoph; Markus
Patent Applications and Registrations
Patent applications and USPTO patent grants for Christoph; Markus.The latest application filed is for "feedforward active noise control".
Company Profile
26.136.132
- Christoph; Markus - Straubing DE
- Christoph; Markus - Regensburg N/A DE
- Christoph; Markus - Staubing N/A DE
- Christoph; Markus - Lorrach-Haagen DE
- Christoph; Markus - Stauhing DE
- Christoph; Markus - D-94315 Straubing DE
- Christoph, Markus - Wehneitz DE
Patent Activity
| Patent | Date |
|---|---|
| Active noise control in a helmet Grant 11,432,610 - Christoph September 6, 2 | 2022-09-06 |
| Road and engine noise control Grant 11,335,317 - Christoph May 17, 2 | 2022-05-17 |
| Loudspeaker array Grant 11,304,003 - Christoph , et al. April 12, 2 | 2022-04-12 |
| Feedforward active noise control Grant 11,250,832 - Zollner , et al. February 15, 2 | 2022-02-15 |
| Acoustic echo canceling Grant 11,081,124 - Christoph , et al. August 3, 2 | 2021-08-03 |
| Loudspeaker arrangement Grant 11,011,151 - Christoph May 18, 2 | 2021-05-18 |
| Audio signal processing with acoustic echo cancellation Grant 10,979,100 - Christoph April 13, 2 | 2021-04-13 |
| Feedforward Active Noise Control App 20210104218 - Zollner; Juergen ; et al. | 2021-04-08 |
| Loudspeaker assembly Grant 10,959,031 - Christoph March 23, 2 | 2021-03-23 |
| Input Signal Decorrelation App 20210076133 - Christoph; Markus | 2021-03-11 |
| Engine order and road noise control Grant 10,930,260 - Christoph February 23, 2 | 2021-02-23 |
| Acoustic echo canceling Grant 10,930,297 - Christoph February 23, 2 | 2021-02-23 |
| Automatic noise control Grant 10,909,963 - Christoph February 2, 2 | 2021-02-02 |
| Sound capturing Grant 10,869,126 - Christoph , et al. December 15, 2 | 2020-12-15 |
| Active Noise Control With Feedback Compensation App 20200380947 - ZAFEIROPOULOS; Nikos ; et al. | 2020-12-03 |
| Adaptive beamforming Grant 10,827,263 - Christoph November 3, 2 | 2020-11-03 |
| Audio reproduction systems and methods Grant 10,805,754 - Christoph , et al. October 13, 2 | 2020-10-13 |
| Acoustic echo cancellation with room change detection Grant 10,790,874 - Christoph , et al. September 29, 2 | 2020-09-29 |
| Noise control Grant 10,789,932 - Zollner , et al. September 29, 2 | 2020-09-29 |
| Loudspeaker Assembly App 20200280813 - CHRISTOPH; Markus | 2020-09-03 |
| Loudspeaker Arrangement App 20200279547 - Christoph; Markus | 2020-09-03 |
| Loudspeaker Array App 20200275231 - CHRISTOPH; Markus ; et al. | 2020-08-27 |
| Sound Wave Field Generation App 20200267490 - CHRISTOPH; Markus | 2020-08-20 |
| Multi-media Reproduction For A Multiplicity Of Recipients App 20200267474 - CHRISTOPH; Markus ; et al. | 2020-08-20 |
| Active noise reduction in headphones Grant 10,721,555 - Christoph | 2020-07-21 |
| Sound wave field generation Grant 10,715,917 - Christoph , et al. | 2020-07-14 |
| Automatic noise control Grant 10,699,690 - Christoph , et al. | 2020-06-30 |
| Single channel noise reduction Grant 10,692,514 - Christoph | 2020-06-23 |
| Acoustic Echo Canceling App 20200160876 - CHRISTOPH; Markus | 2020-05-21 |
| Acoustic Echo Canceling App 20200152219 - Christoph; Markus ; et al. | 2020-05-14 |
| Sound Capturing App 20200145754 - CHRISTOPH; Markus ; et al. | 2020-05-07 |
| Audio Signal Processing With Acoustic Echo Cancellation App 20200136675 - Christoph; Markus | 2020-04-30 |
| Acoustic Echo Cancellation With Room Change Detection App 20200091963 - Christoph; Markus ; et al. | 2020-03-19 |
| Noise Control App 20200043461 - ZOLLNER; Juergen ; et al. | 2020-02-06 |
| Active headphones with power consumption control Grant 10,555,068 - Christoph Fe | 2020-02-04 |
| Adaptive filtering audio signals based on psychoacoustic constraints Grant 10,547,943 - Christoph Ja | 2020-01-28 |
| Loudspeaker arrangement in a car interior Grant 10,506,342 - Christoph , et al. Dec | 2019-12-10 |
| Sound wave field generation based on a desired loudspeaker-room-microphone system Grant 10,469,945 - Christoph No | 2019-11-05 |
| Sound wave field generation based on loudspeaker-room-microphone constraints Grant 10,460,716 - Christoph Oc | 2019-10-29 |
| Sound reproduction with active noise control in a helmet Grant 10,453,437 - Christoph , et al. Oc | 2019-10-22 |
| Adaptive Beamforming App 20190320261 - Christoph; Markus | 2019-10-17 |
| Pop noise control Grant 10,438,606 - Christoph O | 2019-10-08 |
| Beamsteering App 20190273988 - Christoph; Markus | 2019-09-05 |
| Active noise control system Grant 10,373,600 - Christoph , et al. | 2019-08-06 |
| Wireless noise and vibration sensing Grant 10,360,891 - Christoph , et al. | 2019-07-23 |
| Active noise reduction Grant 10,325,586 - Christoph | 2019-06-18 |
| Automatic timbre control Grant 10,319,389 - Christoph | 2019-06-11 |
| Scaled noise and vibration sensing Grant 10,283,107 - Christoph | 2019-05-07 |
| Room-dependent adaptive timbre correction App 20190124461 - Christoph; Markus | 2019-04-25 |
| Automatic Noise Control App 20190096382 - CHRISTOPH; Markus | 2019-03-28 |
| Externally coupled loudspeaker system for a vehicle Grant 10,235,985 - Christoph , et al. | 2019-03-19 |
| Engine Order And Road Noise Control App 20190066650 - CHRISTOPH; Markus | 2019-02-28 |
| Bass enhancement and separation of an audio signal into a harmonic and transient signal component Grant 10,199,048 - Christoph Fe | 2019-02-05 |
| Adaptive Post Filtering App 20190035382 - CHRISTOPH; Markus | 2019-01-31 |
| Adaptive Post Filtering App 20190035414 - CHRISTOPH; Markus | 2019-01-31 |
| Single Channel Noise Reduction App 20190035416 - CHRISTOPH; Markus | 2019-01-31 |
| Pop Noise Control App 20190019527 - Christoph; Markus | 2019-01-17 |
| Loudspeaker Arrangement In A Car Interior App 20190020951 - CHRISTOPH; Markus ; et al. | 2019-01-17 |
| Loudspeaker-room System App 20190014430 - Christoph; Markus | 2019-01-10 |
| Automatic noise control Grant 10,157,606 - Christoph Dec | 2018-12-18 |
| Automatic timbre control Grant 10,135,413 - Christoph , et al. November 20, 2 | 2018-11-20 |
| Scaled Noise And Vibration Sensing App 20180308468 - CHRISTOPH; Markus | 2018-10-25 |
| Noise and vibration sensing Grant 10,096,314 - Christoph October 9, 2 | 2018-10-09 |
| Sound reproduction for a multiplicity of listeners Grant 10,097,944 - Christoph , et al. October 9, 2 | 2018-10-09 |
| Road And Engine Noise Control App 20180277090 - CHRISTOPH; Markus | 2018-09-27 |
| Loudspeaker arrangement in a car interior Grant 10,085,090 - Christoph , et al. September 25, 2 | 2018-09-25 |
| Active noise reduction Grant 10,056,066 - Christoph , et al. August 21, 2 | 2018-08-21 |
| Active Headphones With Power Consumption Control App 20180234757 - CHRISTOPH; Markus | 2018-08-16 |
| Amplifier current consumption control Grant 10,008,993 - Pfaffinger , et al. June 26, 2 | 2018-06-26 |
| Engine noise control Grant 9,953,627 - Christoph , et al. April 24, 2 | 2018-04-24 |
| Spherical microphone array including a sound diffracting structure with cavity Grant 9,936,291 - Christoph April 3, 2 | 2018-04-03 |
| Audio system phase equalization Grant 9,930,468 - Christoph , et al. March 27, 2 | 2018-03-27 |
| Generating an audio signal with a configurable distance cue Grant 9,855,893 - Christoph January 2, 2 | 2018-01-02 |
| Active Noise Reduction App 20170345407 - CHRISTOPH; Markus ; et al. | 2017-11-30 |
| Sound system for establishing a sound zone Grant 9,813,835 - Christoph November 7, 2 | 2017-11-07 |
| Audio Reproduction Systems And Methods App 20170295445 - CHRISTOPH; Markus ; et al. | 2017-10-12 |
| Automatic Noise Control App 20170287462 - CHRISTOPH; Markus ; et al. | 2017-10-05 |
| Automatic Noise Control App 20170287463 - CHRISTOPH; Markus | 2017-10-05 |
| Adaptive filtering Grant 9,749,743 - Christoph August 29, 2 | 2017-08-29 |
| Active noise reduction Grant 9,734,814 - Christoph , et al. August 15, 2 | 2017-08-15 |
| Automatic loudness control Grant 9,735,746 - Christoph August 15, 2 | 2017-08-15 |
| Loudspeaker overload protection Grant 9,729,951 - Wolf , et al. August 8, 2 | 2017-08-08 |
| Sound zone arrangement with zonewise speech suppression Grant 9,711,131 - Christoph July 18, 2 | 2017-07-18 |
| Sound Reproduction With Active Noise Control In A Helmet App 20170193981 - CHRISTOPH; Markus ; et al. | 2017-07-06 |
| Sound Reproduction For A Multiplicity Of Listeners App 20170195815 - CHRISTOPH; Markus ; et al. | 2017-07-06 |
| Loudspeaker Arrangement In A Car Interior App 20170188153 - CHRISTOPH; Markus ; et al. | 2017-06-29 |
| Externally Coupled Loudspeaker System App 20170186416 - CHRISTOPH; Markus ; et al. | 2017-06-29 |
| Active Noise Control In A Helmet App 20170178616 - CHRISTOPH; Markus | 2017-06-22 |
| Active Noise Reduction App 20170162184 - CHRISTOPH; Markus | 2017-06-08 |
| Audio Enhancement App 20170150256 - CHRISTOPH; Markus ; et al. | 2017-05-25 |
| Bass Enhancement And Separation Of An Audio Signal Into A Harmonic And Transient Signal Component App 20170148453 - CHRISTOPH; Markus | 2017-05-25 |
| Adaptive noise control system with improved robustness Grant 9,633,645 - Wurm , et al. April 25, 2 | 2017-04-25 |
| Engine Noise Control App 20170110108 - CHRISTOPH; Markus ; et al. | 2017-04-20 |
| Wireless Noise And Vibration Sensing App 20170076711 - CHRISTOPH; Markus ; et al. | 2017-03-16 |
| Noise And Vibration Sensing App 20170076712 - CHRISTOPH; Markus | 2017-03-16 |
| Generation of individual sound zones within a listening room Grant 9,591,420 - Christoph , et al. March 7, 2 | 2017-03-07 |
| Audio signal mixing Grant 9,584,905 - Christoph February 28, 2 | 2017-02-28 |
| Active noise reduction Grant 9,583,090 - Christoph February 28, 2 | 2017-02-28 |
| In-car Communication App 20170055078 - CHRISTOPH; Markus | 2017-02-23 |
| Sound Wave Field Generation App 20170034623 - CHRISTOPH; Markus ; et al. | 2017-02-02 |
| Engine sound synthesis system Grant 9,553,553 - Christoph January 24, 2 | 2017-01-24 |
| Generating An Audio Signal With A Configurable Distance Cue App 20170001561 - CHRISTOPH; Markus | 2017-01-05 |
| Sound system including an engine sound synthesizer Grant 9,536,510 - Christoph January 3, 2 | 2017-01-03 |
| Active Noise Reduction In Headphones App 20160329042 - CHRISTOPH; Markus | 2016-11-10 |
| Directional coding conversion Grant 9,489,953 - Christoph , et al. November 8, 2 | 2016-11-08 |
| Noise reducing sound reproduction system Grant 9,491,537 - Christoph November 8, 2 | 2016-11-08 |
| Active Noise Control System App 20160314778 - CHRISTOPH; Markus ; et al. | 2016-10-27 |
| Method of adjusting an active noise cancelling system Grant 9,445,191 - Christoph September 13, 2 | 2016-09-13 |
| Amplifier Current Consumption Control App 20160261245 - PFAFFINGER; Gerhard ; et al. | 2016-09-08 |
| Sound Zone Arrangement With Zonewise Speech Suppression App 20160196818 - CHRISTOPH; Markus | 2016-07-07 |
| Automatic Timbre Control App 20160181999 - CHRISTOPH; Markus ; et al. | 2016-06-23 |
| Automatic Timbre Control App 20160163327 - CHRISTOPH; Markus | 2016-06-09 |
| Sound system for establishing a sound zone Grant 9,357,304 - Christoph May 31, 2 | 2016-05-31 |
| Amplifier current consumption control Grant 9,350,314 - Pfaffinger , et al. May 24, 2 | 2016-05-24 |
| Sound System For Establishing A Sound Zone App 20160142852 - CHRISTOPH; Markus | 2016-05-19 |
| Sound system for establishing a sound zone Grant 9,338,554 - Christoph May 10, 2 | 2016-05-10 |
| Sound capture system Grant 9,294,838 - Christoph March 22, 2 | 2016-03-22 |
| Adaptive Noise Control System With Improved Robustness App 20160071508 - WURM; Michael ; et al. | 2016-03-10 |
| Digital equalizing filters with fixed phase response Grant 9,257,953 - Christoph February 9, 2 | 2016-02-09 |
| Audio System Phase Equalization App 20150373476 - Christoph; Markus ; et al. | 2015-12-24 |
| Sound Wave Field Generation App 20150350805 - CHRISTOPH; Markus | 2015-12-03 |
| Fixing device and method for fixing in an opening in a wall Grant 9,194,413 - Christoph , et al. November 24, 2 | 2015-11-24 |
| Group-delay based bass management Grant 9,191,766 - Christoph , et al. November 17, 2 | 2015-11-17 |
| Adaptive Filtering App 20150289059 - CHRISTOPH; Markus | 2015-10-08 |
| Adaptive Filtering App 20150289057 - CHRISTOPH; Markus | 2015-10-08 |
| Sound Wave Field Generation App 20150289058 - CHRISTOPH; Markus | 2015-10-08 |
| Adaptive Filtering App 20150287400 - CHRISTOPH; Markus | 2015-10-08 |
| Sub-band signal processing Grant 9,148,126 - Christoph September 29, 2 | 2015-09-29 |
| Electronic Assembly with a Housing Having a Plastic Part and a Metal Part App 20150264829 - CHRISTOPH; Markus | 2015-09-17 |
| Speed dependent equalizing control system Grant 9,118,290 - Christoph August 25, 2 | 2015-08-25 |
| Active noise reduction Grant 9,099,076 - Christoph , et al. August 4, 2 | 2015-08-04 |
| Active Noise Reduction App 20150201277 - Christoph; Markus ; et al. | 2015-07-16 |
| Noise reducing sound-reproduction Grant 9,071,904 - Christoph June 30, 2 | 2015-06-30 |
| Sound System Including An Engine Sound Synthesizer App 20150170629 - CHRISTOPH; Markus | 2015-06-18 |
| Audio system phase equalization Grant 9,049,533 - Christoph , et al. June 2, 2 | 2015-06-02 |
| Microphone Array App 20150117672 - CHRISTOPH; Markus | 2015-04-30 |
| Audio enhancement system Grant 9,014,386 - Christoph April 21, 2 | 2015-04-21 |
| Sound tuning system Grant 8,976,974 - Christoph , et al. March 10, 2 | 2015-03-10 |
| Method Of Adjusting An Active Noise Cancelling System App 20150010164 - Christoph; Markus | 2015-01-08 |
| Directional Coding Conversion App 20140362998 - CHRISTOPH; Markus ; et al. | 2014-12-11 |
| Audio Signal Mixing App 20140363027 - CHRISTOPH; Markus | 2014-12-11 |
| Active noise reduction system Grant 8,903,101 - Christoph , et al. December 2, 2 | 2014-12-02 |
| Generation Of Individual Sound Zones Within A Listening Room App 20140348354 - CHRISTOPH; Markus ; et al. | 2014-11-27 |
| Sound System For Establishing A Sound Zone App 20140348329 - Christoph; Markus | 2014-11-27 |
| Sound System For Establishing A Sound Zone App 20140348353 - CHRISTOPH; Markus | 2014-11-27 |
| Electrical assembly for a motor vehicle, suitable for contacting with a connector Grant 8,885,353 - Christoph , et al. November 11, 2 | 2014-11-11 |
| Adaptive filtering system Grant 8,879,747 - Christoph November 4, 2 | 2014-11-04 |
| Adaptive bass management Grant 8,842,845 - Christoph September 23, 2 | 2014-09-23 |
| Passenger compartment communication system Grant 8,824,697 - Christoph September 2, 2 | 2014-09-02 |
| Sub-band adaptive FIR-filtering Grant 8,788,554 - Christoph July 22, 2 | 2014-07-22 |
| Signal processing system employing time and frequency domain partitioning Grant 8,782,110 - Christoph July 15, 2 | 2014-07-15 |
| Sound Capture System App 20140177867 - CHRISTOPH; Markus | 2014-06-26 |
| Audio connection testing system Grant 8,718,286 - Spielbauer , et al. May 6, 2 | 2014-05-06 |
| Acoustic echo cancellation Grant 8,712,068 - Christoph April 29, 2 | 2014-04-29 |
| Automatic Loudness Control App 20140037108 - Christoph; Markus | 2014-02-06 |
| Adaptive noise control system with secondary path estimation Grant 8,644,521 - Christoph , et al. February 4, 2 | 2014-02-04 |
| Engine Sound Synthesis System App 20140016792 - Christoph; Markus | 2014-01-16 |
| Active Noise Reduction App 20130308785 - Christoph; Markus | 2013-11-21 |
| Audio enhancement system Grant 8,571,855 - Christoph October 29, 2 | 2013-10-29 |
| Active noise control using bass management Grant 8,559,648 - Christoph October 15, 2 | 2013-10-15 |
| Loudspeaker Overload Protection App 20130216049 - Wolf; Florian ; et al. | 2013-08-22 |
| Digital Equalizing Filters With Fixed Phase Response App 20130195287 - Christoph; Markus | 2013-08-01 |
| Active Noise Reduction App 20130101129 - Christoph; Markus ; et al. | 2013-04-25 |
| Electrical Assembly for a Motor Vehicle, Suitable for Contacting With a Connector App 20130100620 - Christoph; Markus ; et al. | 2013-04-25 |
| Background noise estimation Grant 8,422,697 - Christoph April 16, 2 | 2013-04-16 |
| Active noise control using bass management and a method for an automatic equalization of sound pressure levels Grant 8,396,225 - Christoph , et al. March 12, 2 | 2013-03-12 |
| Noise Reducing Sound Reproduction System App 20130028436 - Christoph; Markus | 2013-01-31 |
| Noise Reducing Sound-reproduction App 20130028435 - Christoph; Markus | 2013-01-31 |
| Stereo audio-signal processing system Grant 8,340,317 - Pfaffinger , et al. December 25, 2 | 2012-12-25 |
| Speed Dependent Equalizing Control System App 20120308036 - Christoph; Markus | 2012-12-06 |
| Adaptive Filtering System App 20120308029 - Christoph; Markus | 2012-12-06 |
| System for improving communication in a room Grant 8,306,234 - Christoph , et al. November 6, 2 | 2012-11-06 |
| Sound Tuning Method App 20120183150 - Christoph; Markus ; et al. | 2012-07-19 |
| Audio Enhancement System App 20120177221 - Christoph; Markus | 2012-07-12 |
| Sensor module with a housing which may be mounted on a wall Grant 8,210,037 - Christoph , et al. July 3, 2 | 2012-07-03 |
| Amplifier Current Consumption Control App 20120154037 - Pfaffinger; Gerhard ; et al. | 2012-06-21 |
| Active noise control system Grant 8,199,923 - Christoph June 12, 2 | 2012-06-12 |
| Background noise estimation utilizing time domain and spectral domain smoothing filtering Grant 8,184,828 - Christoph May 22, 2 | 2012-05-22 |
| Audio enhancement system and method Grant 8,170,221 - Christoph May 1, 2 | 2012-05-01 |
| Dereverberation and feedback compensation system Grant 8,165,310 - Christoph , et al. April 24, 2 | 2012-04-24 |
| Mixing system Grant 8,160,278 - Christoph , et al. April 17, 2 | 2012-04-17 |
| Sound system equalization Grant 8,160,282 - Christoph , et al. April 17, 2 | 2012-04-17 |
| Sound tuning method Grant 8,144,882 - Christoph , et al. March 27, 2 | 2012-03-27 |
| Audio enhancement system Grant 8,116,481 - Christoph February 14, 2 | 2012-02-14 |
| Fixing Device And Method For Fixing In An Opening In A Wall App 20120000291 - Christoph; Markus ; et al. | 2012-01-05 |
| Sub-band Adaptive Fir-filtering App 20110216807 - Christoph; Markus | 2011-09-08 |
| Handsfree communication system Grant 8,009,841 - Christoph August 30, 2 | 2011-08-30 |
| Active Noise Reduction System App 20110206214 - Christoph; Markus ; et al. | 2011-08-25 |
| Group-delay Based Bass Management App 20110150241 - Christoph; Markus ; et al. | 2011-06-23 |
| Audio System Phase Equalization App 20110103590 - Christoph; Markus ; et al. | 2011-05-05 |
| Earplug and manufacturing method Grant 7,891,360 - Buck , et al. February 22, 2 | 2011-02-22 |
| Active noise tuning system Grant 7,885,417 - Christoph February 8, 2 | 2011-02-08 |
| Audio enhancement system Grant 7,881,482 - Christoph February 1, 2 | 2011-02-01 |
| Handsfree system for use in a vehicle Grant 7,826,623 - Christoph November 2, 2 | 2010-11-02 |
| Airbag Satellite App 20100244411 - Christoph; Markus ; et al. | 2010-09-30 |
| Background Noise Estimation App 20100239098 - Christoph; Markus | 2010-09-23 |
| Background Noise Estimation App 20100226501 - Christoph; Markus | 2010-09-09 |
| Acoustic Echo Cancellation App 20100215185 - Christoph; Markus | 2010-08-26 |
| Adaptive Noise Control System App 20100195844 - Christoph; Markus ; et al. | 2010-08-05 |
| Passenger Compartment Communication System App 20100189275 - Christoph; Markus | 2010-07-29 |
| Sub-band Signal Processing App 20100146026 - Christoph; Markus | 2010-06-10 |
| Device housing in particular for a sensor for motor vehicles Grant 7,727,030 - Christoph , et al. June 1, 2 | 2010-06-01 |
| Sensor Module with a Housing Which may be Mounted on a Wall App 20090314081 - Christoph; Markus ; et al. | 2009-12-24 |
| Adaptive Bass Management App 20090220098 - Christoph; Markus | 2009-09-03 |
| Mixing System App 20090214058 - Christoph; Markus ; et al. | 2009-08-27 |
| Device Housing in Particular for a Sensor for Motor Vehicles App 20090197463 - Christoph; Markus ; et al. | 2009-08-06 |
| Active Noise Control Using Bass Management App 20090086990 - Christoph; Markus | 2009-04-02 |
| Automatic Bass Management App 20090086995 - Christoph; Markus ; et al. | 2009-04-02 |
| Audio Enhancement System And Method App 20090034747 - Christoph; Markus | 2009-02-05 |
| Sound Tuning Method App 20080285775 - Christoph; Markus ; et al. | 2008-11-20 |
| Circuit arrangement for reducing the dynamic range of audio signals Grant 7,430,296 - Spielbauer , et al. September 30, 2 | 2008-09-30 |
| Active Noise Control System App 20080181422 - Christoph; Markus | 2008-07-31 |
| Audio Enhancement System And Method App 20080137874 - Christoph; Markus | 2008-06-12 |
| Signal Processing System Employing Time And Frequency Domain Partitioning App 20080126461 - Christoph; Markus | 2008-05-29 |
| (Seat) force measuring device with a spring housing, inductive sensor and stops Grant 7,367,228 - Christoph , et al. May 6, 2 | 2008-05-06 |
| Sensor for Motor Vehicles App 20080072670 - Brandmeier; Thomas ; et al. | 2008-03-27 |
| Sound System Equalization App 20080049948 - Christoph; Markus ; et al. | 2008-02-28 |
| System For Improving Communication In A Room App 20080031468 - Christoph; Markus ; et al. | 2008-02-07 |
| Audio Connection Testing System App 20070291952 - Spielbauer; Georg ; et al. | 2007-12-20 |
| Audio enhancement system Grant 7,302,062 - Christoph November 27, 2 | 2007-11-27 |
| Parametric recursive digital filter Grant 7,287,050 - Christoph October 23, 2 | 2007-10-23 |
| Sensor device and method for arranging a sensor device on a mounting plate Grant 7,277,022 - Christoph , et al. October 2, 2 | 2007-10-02 |
| Handsfree communication system App 20070172079 - Christoph; Markus | 2007-07-26 |
| Handsfree system for use in a vehicle App 20070127736 - Christoph; Markus | 2007-06-07 |
| Dereverberation and feedback compensation system App 20070110254 - Christoph; Markus ; et al. | 2007-05-17 |
| (Seat) force measuring device with a spring housing, an inductive sensor and stops App 20070028703 - Christoph; Markus ; et al. | 2007-02-08 |
| Earplug and manufacturing method App 20070000499 - Buck; Karl ; et al. | 2007-01-04 |
| Audio enhancement system App 20060259531 - Christoph; Markus | 2006-11-16 |
| Audio enhancement system App 20060251261 - Christoph; Markus | 2006-11-09 |
| Circuit arrangement for reducing the dynamic range of audio signals App 20060245604 - Spielbauer; Georg ; et al. | 2006-11-02 |
| Sound system Grant 7,123,724 - Pfaffinger , et al. October 17, 2 | 2006-10-17 |
| Audio enhancement system and method App 20060025994 - Christoph; Markus | 2006-02-02 |
| Active noise tuning system App 20050207585 - Christoph, Markus | 2005-09-22 |
| Audio enhancement system and method App 20050207583 - Christoph, Markus | 2005-09-22 |
| Sensor device and method for arranging a sensor device on a mounting plate App 20050078010 - Christoph, Markus ; et al. | 2005-04-14 |
| Stereo audio-signal processing system App 20050008170 - Pfaffinger, Gerhard ; et al. | 2005-01-13 |
| Parametric recursive digital filter App 20040193666 - Christoph, Markus | 2004-09-30 |
| Method and apparatus for dynamic sound optimization App 20040125962 - Christoph, Markus | 2004-07-01 |
| Device for the noise-dependent adjustment of sound volumes App 20040076302 - Christoph, Markus | 2004-04-22 |
| Ignition device for tripping a passenger restraint device in a motor vehicle Grant 6,227,115 - Gruber , et al. May 8, 2 | 2001-05-08 |
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