Inventor

Antonius Adrianus Cornelis Maria Kalker

Inventor

Eindhoven, NL

Overview

48→

Patents

1999–2020

Patent span

Physics

Primary field (CPC G)

Patents· 48 as inventor

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

G06Tprimary

G06TImage data processing or generation, in general27%

H04NPictorial communication, e.g. television24%

G06FElectric digital data processing11%

G11BInformation storage based on relative movement between record carrier and transducer11%

G10LSpeech analysis techniques or speech synthesis7%

H03MCoding5%

H04HBroadcast communication5%

G06VImage or video recognition or understanding3%

G10HElectrophonic musical instruments2%

H03HImpedance networks, e.g. resonant circuits2%

PatentTitleYear

10,847,169Audio coder window and transform implementations2020 10,818,305Audio coder window sizes and time-frequency transformations2020 10,728,683Sweet spot adaptation for virtualized audio2020 10,699,723Encoding and decoding of digital audio signals using variable alphabet size2020 10,146,500Transform-based audio codec and method with subband energy smoothing2018 9,779,739'Residual encoding in an object-based audio system'2017 9,179,162'Image transform zero coefficient selection and zero-skip transmission for arbitrary shape transform coding'2015 9,154,732'Visual conditioning for augmented-reality-assisted video conferencing'2015 8,452,971'Embedding and detection of watermark in a motion image signal'2013 8,180,098'Method of extracting a watermark'2012 8,060,444'Determining whether a digital rights management system\'s native license is valid'2011 8,051,290'Increasing integrity of watermarks using robust features'2011 7,996,678'Embedding and detection of watermark in a motion image signal'2011 7,921,296'Generating and matching hashes of multimedia content'2011 7,639,599'Embedding supplementary data in an information signal'2009 7,577,696'Multirate filter as well as display system and mobile telephone comprising said multirate filter'2009 7,561,715'Method and arrangement for watermark detection'2009 7,549,052'Generating and matching hashes of multimedia content'2009 7,523,312'Fingerprint database updating method, client and server'2009 7,477,739'Efficient storage of fingerprints'2009 7,478,242'Increasing integrity of watermarks using robust features'2009 7,412,151'Detection of a watermark in a compressed video signal'2008 7,336,712'Video signal transmission'2008 7,286,451'Copy control using digital speed bumps'2007 7,260,219'Recordable storage medium with protected data area'2007 7,224,296'Error-correcting binary run-length-limited product-code'2007 7,206,349'Multicarrier receiver with channel estimator'2007 7,191,334'Embedding auxiliary data in a signal'2007 7,168,083'Content monitoring'2007 7,152,161'Watermarking'2006 7,136,783'Method and arrangement for processing a signal using a digital processor having a given word length'2006 7,127,065'Watermark embedding and detection'2006 7,123,743'Method and arrangement for detecting a watermark in an information signal'2006 7,109,894'Encoding and decoding a media signal with high and low quality versions'2006 7,016,846'Robust checksums'2006 6,823,006'Adding fields of a video frame'2004 6,788,808'Method and device for optically determining depth'2004 6,738,904'Recordable storage medium with protected data area'2004 6,718,287'Watermark detection'2004 6,714,658'Detection of auxiliary data in an information signal'2004 6,707,930'Method and arrangement for embedding a watermark in an information signal'2004 6,701,062'Generational copy control of a video signal'2004 6,671,388'Method and apparatus for detecting a watermark in a manipulated image'2003 6,625,298'Method and system for embedding extra information, method and system for decoding'2003 6,577,747'Detection of auxiliary data in an information signal'2003 6,415,040'Device for optically scanning a record carrier'2002 5,999,655'Method and apparatus for transmission of video pictures which are segmented to form maps of picture blocks of variable block sizes'1999 5,946,038'Method and arrangement for coding and decoding signals'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2013Based in Eindhoven, NL· patent location history

2002–2011Patents assigned to KONINKL PHILIPS ELECTRONICS NV (28)· patent assignee history

2009–2013Patents assigned to CIVOLUTION BV (4)· patent assignee history

2009–2011Patents assigned to GRACENOTE INC (3)· patent assignee history

2011Based in Palo Alto, CA, US· patent location history

2015Patents assigned to FUTUREWEI TECHNOLOGIES INC (2)· patent assignee history

2015–2020Based in Mountain View, CA, US· patent location history

2017–2020Patents assigned to DTS INC (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KONINKL PHILIPS ELECTRONICS NV	28	2002–2011
DTS INC	6	2017–2020
CIVOLUTION BV	4	2009–2013
GRACENOTE INC	3	2009–2011
FUTUREWEI TECHNOLOGIES INC	2	2015

Locations

Location	Patents	Span
Eindhoven, NL	39	1999–2013
Mountain View, California, US	8	2015–2020
Palo Alto, California, US	1	2011