Inventor

Markus Christoph

Inventor

Straubing, DE

Overview

2001–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 116 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers29%

G10KSound-producing devices15%

H04SStereophonic systems15%

G10LSpeech analysis techniques or speech synthesis8%

H03GControl of amplification7%

H03HImpedance networks, e.g. resonant circuits3%

H04MTelephonic communication3%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%

G06FElectric digital data processing2%

B60NSeats specially adapted for vehicles2%

PatentTitleYear

11,081,124Acoustic echo canceling2021 11,056,095Active noise reduction earphones2021 11,017,798Dynamic noise suppression and operations for noisy speech signals2021 11,011,151Loudspeaker arrangement2021 10,984,789Apparatus and method using multiple voice command devices2021 10,979,100Audio signal processing with acoustic echo cancellation2021 10,959,031Loudspeaker assembly2021 10,930,260Engine order and road noise control2021 10,930,297Acoustic echo canceling2021 10,909,963Automatic noise control2021 10,869,126Sound capturing2020 10,827,263Adaptive beamforming2020 10,805,754Audio reproduction systems and methods2020 10,789,932Noise control2020 10,790,874Acoustic echo cancellation with room change detection2020 10,721,555Active noise reduction in headphones2020 10,715,917Sound wave field generation2020 10,699,690Automatic noise control2020 10,692,514Single channel noise reduction2020 10,623,857Individual delay compensation for personal sound zones2020 10,555,068Active headphones with power consumption control2020 10,547,943Adaptive filtering audio signals based on psychoacoustic constraints2020 10,506,342Loudspeaker arrangement in a car interior2019 10,497,357Active noise reduction earphones2019 10,469,945Sound wave field generation based on a desired loudspeaker-room-microphone system2019 10,460,716Sound wave field generation based on loudspeaker-room-microphone constraints2019 10,453,437Sound reproduction with active noise control in a helmet2019 10,438,606Pop noise control2019 10,373,600Active noise control system2019 10,360,891Wireless noise and vibration sensing2019 10,339,912Active noise cancellation system utilizing a diagonalization filter matrix2019 10,325,586Active noise reduction2019 10,319,389Automatic timbre control2019 10,283,107Scaled noise and vibration sensing2019 10,235,985Externally coupled loudspeaker system for a vehicle2019 10,199,048Bass enhancement and separation of an audio signal into a harmonic and transient signal component2019 10,176,795Active noise control by adaptive noise filtering2019 10,157,606Automatic noise control2018 10,135,413Automatic timbre control2018 10,096,314Noise and vibration sensing2018 10,097,944Sound reproduction for a multiplicity of listeners2018 10,085,090Loudspeaker arrangement in a car interior2018 10,056,066Active noise reduction2018 10,008,993Amplifier current consumption control2018 9,953,627Engine noise control2018 9,936,291Spherical microphone array including a sound diffracting structure with cavity2018 9,930,468'Audio system phase equalization'2018 9,855,893'Generating an audio signal with a configurable distance cue'2018 9,813,835'Sound system for establishing a sound zone'2017 9,749,743'Adaptive filtering'2017 9,735,746'Automatic loudness control'2017 9,734,814'Active noise reduction'2017 9,729,951'Loudspeaker overload protection'2017 9,711,131'Sound zone arrangement with zonewise speech suppression'2017 9,633,645'Adaptive noise control system with improved robustness'2017 9,591,420'Generation of individual sound zones within a listening room'2017 9,584,905'Audio signal mixing'2017 9,583,090'Active noise reduction'2017 9,553,553'Engine sound synthesis system'2017 9,536,510'Sound system including an engine sound synthesizer'2017 9,491,537'Noise reducing sound reproduction system'2016 9,489,953'Directional coding conversion'2016 9,445,191'Method of adjusting an active noise cancelling system'2016 9,357,304'Sound system for establishing a sound zone'2016 9,350,314'Amplifier current consumption control'2016 9,338,554'Sound system for establishing a sound zone'2016 9,294,838'Sound capture system'2016 9,257,953'Digital equalizing filters with fixed phase response'2016 9,194,413'Fixing device and method for fixing in an opening in a wall'2015 9,191,766'Group-delay based bass management'2015 9,148,126'Sub-band signal processing'2015 9,118,290'Speed dependent equalizing control system'2015 9,099,076'Active noise reduction'2015 9,071,904'Noise reducing sound-reproduction'2015 9,049,533'Audio system phase equalization'2015 9,014,386'Audio enhancement system'2015 8,976,974'Sound tuning system'2015 8,903,101'Active noise reduction system'2014 8,885,353'Electrical assembly for a motor vehicle, suitable for contacting with a connector'2014 8,879,747'Adaptive filtering system'2014 8,842,845'Adaptive bass management'2014 8,824,697'Passenger compartment communication system'2014 8,788,554'Sub-band adaptive FIR-filtering'2014 8,782,110'Signal processing system employing time and frequency domain partitioning'2014 8,718,286'Audio connection testing system'2014 8,712,068'Acoustic echo cancellation'2014 8,644,521'Adaptive noise control system with secondary path estimation'2014 8,571,855'Audio enhancement system'2013 8,559,648'Active noise control using bass management'2013 8,422,697'Background noise estimation'2013 8,396,225'Active noise control using bass management and a method for an automatic equalization of sound pressure levels'2013 8,340,317'Stereo audio-signal processing system'2012 8,306,234'System for improving communication in a room'2012 8,210,037'Sensor module with a housing which may be mounted on a wall'2012 8,199,923'Active noise control system'2012 8,184,828'Background noise estimation utilizing time domain and spectral domain smoothing filtering'2012 8,170,221'Audio enhancement system and method'2012 8,165,310'Dereverberation and feedback compensation system'2012 8,160,278'Mixing system'2012 8,160,282'Sound system equalization'2012 8,144,882'Sound tuning method'2012 8,116,481'Audio enhancement system'2012 8,009,841'Handsfree communication system'2011 7,891,360'Earplug and manufacturing method'2011 7,885,417'Active noise tuning system'2011 7,881,482'Audio enhancement system'2011 7,826,623'Handsfree system for use in a vehicle'2010 7,727,030'Device housing in particular for a sensor for motor vehicles'2010 7,430,296'Circuit arrangement for reducing the dynamic range of audio signals'2008 7,367,228'(Seat) force measuring device with a spring housing, inductive sensor and stops'2008 7,302,062'Audio enhancement system'2007 7,287,050'Parametric recursive digital filter'2007 7,277,022'Sensor device and method for arranging a sensor device on a mounting plate'2007 7,123,724'Sound system'2006 6,529,605'Method and apparatus for dynamic sound optimization'2003 6,227,115'Ignition device for tripping a passenger restraint device in a motor vehicle'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2015Based in Regensburg, DE· patent location history

2003–2021Based in Straubing, DE· patent location history

2006–2016Patents assigned to CHRISTOPH MARKUS (36)· patent assignee history

2007–2016Patents assigned to HARMAN BECKER AUTOMOTIVE SYS (40)· patent assignee history

2010–2014Patents assigned to CONTINENTAL AUTOMOTIVE GMBH (3)· patent assignee history

2010Based in Stauhing, DE· patent location history

2011–2013Based in Staubing, DE· patent location history

2011Based in Lorrach-Haagen, DE· patent location history

2012–2015Patents assigned to SCHOLZ LEANDER (6)· patent assignee history

2016–2021Patents assigned to HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH (61)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH	61	2016–2021
HARMAN BECKER AUTOMOTIVE SYS	40	2007–2016
CHRISTOPH MARKUSself	36	2006–2016
SCHOLZ LEANDER	6	2012–2015
CONTINENTAL AUTOMOTIVE GMBH	3	2010–2014

Locations

Location	Patents	Span
Straubing, DE	105	2003–2021
Regensburg, DE	7	2001–2015
Staubing, DE	2	2011–2013
Lorrach-Haagen, DE	1	2011
Stauhing, DE	1	2010