Patents by Inventor Dirk Schmitt
Dirk Schmitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140230699Abstract: The present invention relates to the production of ternesite clinkers containing 20 to 95% by weight C5S2$ and less than 15% by weight C4A3$, and to the use of ternesite as an additive to hydraulic and/or latent hydraulic and/or pozzolanic materials.Type: ApplicationFiled: July 16, 2012Publication date: August 21, 2014Applicant: HEIDELBERGCEMENT AGInventors: Frank Bullerjahn, Dirk Schmitt, Mohsen Ben Haha
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Publication number: 20140230697Abstract: The present invention relates to a ternesite calcium sulfoaluminate clinker as well as a ternesite clinker containing 20 to 100% by weight of C5S2$ and less than 15% by weight of C4A3$, as well as the use of ternesite as an additive to calcium sulfoaluminate (ferrite) (belite) (CSA(F)(B)) clinker, calcium sulfoaluminate (ferrite) (belite) cement, and calcium sulfoaluminate (ferrite) (belite) binder containing 10 to 90% by weight of CSA(F)(B) and 90 to 10% by weight of ternesite.Type: ApplicationFiled: July 16, 2012Publication date: August 21, 2014Applicant: HEIDELBERGCEMENT AGInventors: Frank Bullerjahn, Dirk Schmitt, Mohsen Ben Haha, Barbara Batog, Maciej Zajac
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Publication number: 20140230696Abstract: The present invention relates to the production of ternesite clinkers containing 20 to 100% by weight C5S2$ and less than 15% by weight C4A3$, and to the use of ternesite as an additive to Portland cement or Portland composite cement, and to a binder containing 20 to 95% by weight Portland cement (clinker) and 80 to 5% by weight ternesite (clinker).Type: ApplicationFiled: July 16, 2012Publication date: August 21, 2014Applicant: HEIDELBERGCEMENT AGInventors: Frank Bullerjahn, Dirk Schmitt, Mohsen Ben Haha, Barbara Batog, Linda Irbe
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Patent number: 8792592Abstract: A method of feedforward phase recovery on a data stream is described. Phase estimation base points are calculated, at a phase detector, for each block of the received data stream. A current phase, at a phase interpolator, between two phase estimation base points. Data stream delays within the phase detector are matched with delays within the phase interpolator.Type: GrantFiled: May 28, 2010Date of Patent: July 29, 2014Assignee: Thomson LicensingInventors: Dirk Schmitt, Wen Gao, Paul Gothard Knutson
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Patent number: 8737553Abstract: A method of frame sync detection is described. A first and second differential correlation of a data stream is calculated, at a plurality of delay and conjugate multipliers. The first and second differential correlations are convolved with a previous set of differential correlations. A correlation peak is calculated, at a sync detector, using the convolved differential correlations, to detect a frame sync.Type: GrantFiled: May 28, 2010Date of Patent: May 27, 2014Assignee: Thomson LicensingInventors: Paul Gothard Knutson, Dirk Schmitt, Wen Gao
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Patent number: 8687747Abstract: Methods and apparatus for symbol timing recovery are provided. Both a coarse symbol timing recovery method and apparatus, and a fine symbol timing recovery method and apparatus are described which can be used jointly for symbol recovery, for example in phase shift keying receivers. The coarse method involves the use of differential correlations and finding the time difference in peak values of the correlation results. The fine method involves interpolation of a received digital signal, followed by filtering and timing error detection. The error detection signal is further filtered and used to control the interpolator. The methods provide for robust symbol timing synchronization.Type: GrantFiled: May 28, 2010Date of Patent: April 1, 2014Assignee: Thomson LicensingInventors: Paul Gothard Knutson, Dirk Schmitt, Wen Gao
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Patent number: 8653186Abstract: The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders. The invention concerns also a composition of calcium silicate hydrate and comb polymer, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.Type: GrantFiled: September 2, 2009Date of Patent: February 18, 2014Assignee: Construction Research & Technology GmbHInventors: Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera
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Patent number: 8575240Abstract: Identification and quantification of mass-produced goods in articles, a dye-containing polymer dispersion having been added to the mass-produced goods. The polymer dispersions contain particles which are coded by a mixture of dyes, and the polymer dispersion particles are quantitatively determined.Type: GrantFiled: December 16, 2010Date of Patent: November 5, 2013Assignee: Construction Research & Technology GmbHInventors: Torsten Freund, Simon Nord, Marc Rudolf Jung, Hans-Peter Kaub, Tina Schröder-Grimonpont, Dirk Schmitt
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Publication number: 20130035422Abstract: Identification and quantification of mass-produced goods in articles, a dye-containing polymer dispersion having been added to the mass-produced goods. The polymer dispersions contain particles which are coded by a mixture of dyes, and the polymer dispersion particles are quantitatively determined.Type: ApplicationFiled: December 16, 2010Publication date: February 7, 2013Applicant: Construction Research & Technology GmbHInventors: Torsten Freund, Simon Nord, Marc Rudolf Jung, Hans-Peter Kaub, Tina Schröder-Grimonpont, Dirk Schmitt
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Publication number: 20120220696Abstract: The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of a polycondensate containing at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing a polyether side chain and at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing at least one phosphoric acid ester group and/or its salt. The invention concerns a composition of calcium silicate hydrate and the polycondensate, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.Type: ApplicationFiled: August 12, 2010Publication date: August 30, 2012Inventors: Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera
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Publication number: 20120069942Abstract: A method of frame sync detection is described. A first and second differential correlation of a data stream is calculated, at a plurality of delay and conjugate multipliers. The first and second differential correlations are convolved with a previous set of differential correlations. A correlation peak is calculated, at a sync detector, using the convolved differential correlations, to detect a frame sync.Type: ApplicationFiled: May 28, 2010Publication date: March 22, 2012Inventors: Paul Gothard Knutson, Dirk Schmitt, Wen Gao
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Publication number: 20120057664Abstract: Methods and apparatus for symbol timing recovery are provided. Both a coarse symbol timing recovery method and apparatus, and a fine symbol timing recovery method and apparatus are described which can be used jointly for symbol recovery, for example in phase shift keying receivers. The coarse method involves the use of differential correlations and finding the time difference in peak values of the correlation results. The fine method involves interpolation of a received digital signal, followed by filtering and timing error detection. The error detection signal is further filtered and used to control the interpolator. The methods provide for robust symbol timing synchronization.Type: ApplicationFiled: May 28, 2010Publication date: March 8, 2012Inventors: Paul Gothard Knutson, Dirk Schmitt, Wen Gao
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Publication number: 20120051478Abstract: A method of detecting and correcting cycle slip in a data stream including sync symbol blocks and data symbol blocks prior to feedback carrier recovery is described. A phase ambiguity angle is computed upon detecting a last sync symbol of a sync symbol block in the data stream. A cycle slip corrector initiates cycle slip correction upon determining the computed phase ambiguity angle is different from a previous computed phase ambiguity angle to generate a corrected data stream. The corrected data stream is provided to a feedback carrier recovery circuit.Type: ApplicationFiled: May 28, 2010Publication date: March 1, 2012Inventors: Dirk Schmitt, Wen Gao, Paul Gothard Knutson
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Publication number: 20120045028Abstract: A method of feedforward phase recovery on a data stream is described. Phase estimation base points are calculated, at a phase detector, for each block of the received data stream. A current phase, at a phase interpolator, between two phase estimation base points. Data stream delays within the phase detector are matched with delays within the phase interpolator.Type: ApplicationFiled: May 28, 2010Publication date: February 23, 2012Inventors: Dirk Schmitt, Wen Gao, Paul Gothard Knutson
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Publication number: 20120039380Abstract: Method and apparatus for iterative timing recovery for FTN signaling are provided. The iterative timing recovery method and apparatus uses a feedback timing error signal from a forward error correction block with an additional equalizer prior to a maximum a posteriori (MAP) decoder which matches the equalized FTN signal to a truncated inter-symbol interference (ISI) target. A timing error is then generated using a modified M&M timing error detector.Type: ApplicationFiled: May 28, 2010Publication date: February 16, 2012Inventors: Dirk Schmitt, Paul Gothard Knutson, Wen Gao
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Patent number: 8077817Abstract: The present invention relates to an arrangement for adaptive bit recovery, and to an apparatus for reading from and/or writing to recording media using such arrangement. According to the invention, an arrangement for adaptive bit recovery including an adaptive equalizer and an adaptive partial response maximum likelihood detector further includes an overflow control block for the adaptive equalizer for monitoring one or more of the adaptation coefficients and/or a state violation checker for monitoring the allowed states and indicating state violations as well as and a noise detector for detecting larger deviations of the target values.Type: GrantFiled: February 26, 2005Date of Patent: December 13, 2011Assignee: Thomson LicensingInventors: Axel Kochale, Dirk Schmitt, Stefan Rapp
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Publication number: 20110269875Abstract: The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders. The invention concerns also a composition of calcium silicate hydrate and comb polymer, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.Type: ApplicationFiled: September 2, 2009Publication date: November 3, 2011Inventors: Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera
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Publication number: 20100040126Abstract: The present invention relates to an arrangement for adaptive bit recovery, and to an apparatus for reading from and/or writing to recording media using such arrangement. According to the invention, an arrangement for adaptive bit recovery including an adaptive equalizer and an adaptive partial response maximum likelihood detector further includes an overflow control block for the adaptive equalizer for monitoring one or more of the adaptation coefficients and/or a state violation checker for monitoring the allowed states and indicating state violations as well as and a noise detector for detecting larger deviations of the target values.Type: ApplicationFiled: February 26, 2005Publication date: February 18, 2010Applicant: Thomson LicensingInventors: Axel Kochale, Dirk Schmitt, Stefan Rapp
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Publication number: 20090052592Abstract: The invention is related to a method and an arrangement for recovering a binary DC-free code from a frequency-modulated signal, without any analog signal demodulation of the frequency-modulated signal. The invention relates more particularly to an ATIP bi-phase channel bit and timing recovery in a deteriorated wobble channel as e.g. required for high speed recording on optical storage media. The arrangement comprises a digital phase lock loop and a phase detector uses a phase trellis and a maximum likelihood detection is applied to the phase trellis for providing a bi-phase channel bit signal and a bi-phase clock signal, which is in time with the sampling point for the bi-phase channel bit signal for recovering said binary code. The invention is also applicable for further data transmission systems based on frequency modulation as e.g. modem or wireless data communication systems.Type: ApplicationFiled: April 4, 2006Publication date: February 26, 2009Inventors: Dirk Schmitt, Alkis Ikonomu, Marten Kabutz