Patents by Inventor Jürg Widmer
Jürg Widmer 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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Patent number: 11949493Abstract: A mobile terminal and its methods of use are disclosed herein. In an embodiment, a mobile terminal for enabling radio communications includes a common reference device, frequency conversion circuitry, and pilot tracking circuitry and/or signal tracking circuitry. The common reference device provides a common reference signal for frequency conversions. The frequency conversion circuitry uses the common reference signal from the common reference device to perform a frequency conversion of incoming or outgoing communications. The pilot tracking circuitry determines a frequency error based on a frequency of a received pilot signal and causes an adjustment to the frequency conversion performed by the frequency conversion circuitry based on the frequency error. The signal tracking circuitry determines a frequency error signal based on the frequency of an incoming communication signal and causes an adjustment to the frequency conversion performed by the frequency conversion circuitry based on the frequency error.Type: GrantFiled: December 20, 2021Date of Patent: April 2, 2024Assignee: HUGHES NETWORK SYSTEMS, LLCInventors: Sattar Atashbahar, Raymond Gamboa, Mani Jodat, Juerg Widmer, Bill Whitmarsh
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Publication number: 20230198609Abstract: A mobile terminal and its methods of use are disclosed herein. In an embodiment, a mobile terminal for enabling radio communications includes a common reference device, frequency conversion circuitry, and pilot tracking circuitry and/or signal tracking circuitry. The common reference device provides a common reference signal for frequency conversions. The frequency conversion circuitry uses the common reference signal from the common reference device to perform a frequency conversion of incoming or outgoing communications. The pilot tracking circuitry determines a frequency error based on a frequency of a received pilot signal and causes an adjustment to the frequency conversion performed by the frequency conversion circuitry based on the frequency error. The signal tracking circuitry determines a frequency error signal based on the frequency of an incoming communication signal and causes an adjustment to the frequency conversion performed by the frequency conversion circuitry based on the frequency error.Type: ApplicationFiled: December 20, 2021Publication date: June 22, 2023Inventors: Sattar Atashbahar, Raymond Gamboa, Mani Jodat, Juerg Widmer, Bill Whitmarsh
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Patent number: 10250320Abstract: A telecommunications terminal includes a memory and a processor programmed to execute instructions stored in the memory. The instructions include determining an estimate of a link attenuation of a first communication link while receiving a channel and applying the estimate of the link attenuation to a second communication link after transitioning to the second communication link.Type: GrantFiled: June 27, 2017Date of Patent: April 2, 2019Assignee: Hughes Network Systems, LLCInventors: Michael G. Chin, Shijo Jose, Michael I. Parr, Juerg Widmer
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Publication number: 20180375571Abstract: A telecommunications terminal includes a memory and a processor programmed to execute instructions stored in the memory. The instructions include determining an estimate of a link attenuation of a first communication link while receiving a channel and applying the estimate of the link attenuation to a second communication link after transitioning to the second communication link.Type: ApplicationFiled: June 27, 2017Publication date: December 27, 2018Inventors: Michael G. Chin, Shijo Jose, Michael I. Parr, Juerg Widmer
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Patent number: 9446986Abstract: A copolymer, in particular a dispersing agent for hydraulically setting systems, includes at least three structural units S1, S2, S3 and optionally a further structural unit S4.Type: GrantFiled: November 8, 2013Date of Patent: September 20, 2016Assignees: SIKA TECHNOLOGY AG, SIKA (CHINA) LTD.Inventors: Michael Danzinger, Jennifer Liu, Ueli Sulser, Jürg Widmer
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Publication number: 20160130182Abstract: A copolymer, in particular a dispersing agent for hydraulically setting systems, includes at least three structural units S1, S2, S3 and optionally a further structural unit S4.Type: ApplicationFiled: November 8, 2013Publication date: May 12, 2016Inventors: Michael DANZINGER, Jennifer LIU, Ueli SULSER, Jürg WIDMER
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Patent number: 7375163Abstract: Described are polymers and cement admixtures which reduce drop in fluidity with time. Said admixture comprises at least one polymer of the present invention and at least one polymer A. The polymer of the present invention comprises side chains of which at least 10 weight-% can be cleaved in alkaline medium. The polymer of the present invention is an acrylic polymer which comprises side chains connected to the backbone by ester linkages. These side chains may be alkyl, hydroxy alkyl, cycloalkyl or polyoxyalkylene groups. Polymer A is a cement dispersing agent. The combination of polymer A with the polymer of the present invention in a weight ratio of 0.1:10-10:1, and preferably 1:10-10:1 reduces the drop in fluidity with time of cementitious compositions.Type: GrantFiled: January 11, 2006Date of Patent: May 20, 2008Assignee: Sika Technology AGInventors: Irene Schober, Theodor A. Bürge, Ulf Velten, Jürg Widmer, Christian M. Bürge, Urs Mäder
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Patent number: 7026402Abstract: Described are polymers and cement admixtures which reduce drop in fluidity with time. Said admixture comprises at least one polymer of the present invention and at least one polymer A. The polymer of the present invention comprises side chains of which at least 10 weight-% can be cleaved in alkaline medium. The polymer of the present invention is an acrylic polymer which comprises side chains connected to the backbone by ester linkages. These side chains may be alkyl, hydroxy alkyl, cycloalkyl or polyoxyalkylene groups. Polymer A is a cement dispersing agent. The combination of polymer A with the polymer of the present invention in a weight ratio of 0.1:10–10:1, and preferably 1:10–10:1 reduces the drop in fluidity with time of cementitious compositions.Type: GrantFiled: October 10, 2003Date of Patent: April 11, 2006Assignee: Sika Schweiz AGInventors: Irene Schober, Theodor A. Bürge, Ulf Velten, Jürg Widmer, Christian M. Bürge, Urs Mäder
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Patent number: 6855752Abstract: Polymers for cement dispersing admixtures, which show different performing properties in concrete are described. All polymers are based on a composition of reactants, namely a) a poly(acrylic acid), b) a polyalkyleneglycol-monoalkylether and, optionally c) a ?-amino-polyalkylene-glycol-?-alkylether and/or d) a primary or secondary amine. By keeping the composition of reactants constant and varying only the reaction time, polymers with different properties can easily be achieved. Such polymers are suitable for pre-cast, readymix or for increasing workability over time, just depending on reaction time. Polymers of the invention can be used as single polymer or in polymer blends. For this, the kinetics of the used polymer analogous condensation reaction was intensively studied. Additionally, the benefit of amines as reactant regarding stability and hydrolysis velocity of cleavable side groups was investigated.Type: GrantFiled: March 29, 2001Date of Patent: February 15, 2005Assignee: Sika Schweiz AGInventors: Ulf Velten, Ueli Sulser, Jürg Widmer, Irene Schober, Theodor A. Bürge
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Patent number: 6548589Abstract: A multipurpose cement dispersing, shrinkage compensating and anticorrosive polymer and an admixture comprising said polymer, which improve the workability and the early strength development of fresh concrete, are described. Said polymer is an ester- and amid group-modified acrylic polymer, obtainable by aqueous solution radical copolymerization of (1) acrylic or methacrylic acid with (2) an acrylic or methacrylic methoxy-polyalkyleneglycolester monomer having 2 to 300 moles of an oxyalkylene group each having 2 to 3 carbon atoms, (3) optionally an acrylic or methacrylic methoxy-polyalkyleneglycolamide monomer having 2 to 300 moles of an oxyalkylene group each having 2 to 3 carbon atoms, (4) an acrylic or methacrylic ester of a tertiary aminoalkanol and (5) optionally an acrylic amide of a primary or secondary aliphatic, cycloaliphatic or aromatic amine.Type: GrantFiled: March 22, 2001Date of Patent: April 15, 2003Assignee: Sika Schweiz AGInventors: Jürg Widmer, Ueli Sulser, Ulf Velten, Irene Schober, Theodor A. Bürge
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Patent number: 6387176Abstract: A new category of multi-purpose polymers is presented, the polymers being capable to serve as a cement dispersing agent and which at the same time are set-accelerating and do have shrinkage reducing- and anticorrosive properties to steel. The polymers are ester and amide group-modified acrylic polymers, obtainable by a polymer analogous esterification of a polyacrylic acid with 1) a monofunctional polyalkyleneglycol-monoalkylether, 2) a tertiary alkanolamine and optionally 3) by amidation with a amino-polyalkylenglycol alkylether. The multi-purpose polymers serve for cement dispersing admixture for concrete with set accelerating, shrinkage compensating and anticorrosive properties to steel.Type: GrantFiled: April 17, 2000Date of Patent: May 14, 2002Assignee: Sika AG, vorm. Kaspar Winkler & Co.Inventors: Jürg Widmer, Ueli Sulser, Theodor A. Bürge, Ulf Velten, Anna Krapf-Huber