Patents by Inventor Bjorn A. Bjerke
Bjorn A. Bjerke 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: 20240140237Abstract: The present invention concerns a charging station (1) for electrical vehicles. The charging station (1) comprises a storage (2) for liquefied hydrogen, a conversion unit (3) for generating electrical energy with hydrogen from the storage (2), and a battery system (4) for storing electrical energy generated by the conversion unit (3). The charging station (1) also comprises at least one charging pile (5) for charging an electrical vehicle (6) with electrical energy from the battery system (4).Type: ApplicationFiled: May 2, 2022Publication date: May 2, 2024Inventors: Vivian LARSGÅRD-INGEBRIGTSEN, Bjørn BJERKE
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Publication number: 20210359959Abstract: Embodiments include methods for managing communications that may be performed by a processor of a shared network processing unit (NPU). The processor may present to each of a plurality of network controller devices an interface to a corresponding one of a plurality of virtual NPU modules each executing within a container within a virtualization platform, wherein each virtual NPU module enables one of the plurality of network controller devices to communicate with a corresponding one of a plurality of small cells. The processor may direct, via a virtual switch executing on the virtualization platform, communications between each of the plurality of network controller devices and a corresponding one of the plurality of virtual NPU modules and between each of the plurality of virtual NPU modules and a corresponding one of the plurality of small cells.Type: ApplicationFiled: January 6, 2021Publication date: November 18, 2021Inventors: Nicola VARANESE, Puneet SETHI, Bjorn BJERKE
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Patent number: 8881827Abstract: A wellhead for subsea use and a method of making same where the wellhead is constituted by a body having a bore (3) therethrough and at least one side bore (9, 11) for provision of fluid communication through the wall of the wellhead (1), and where the wellhead (1) includes a pipe hanger (30) provided with a bore (34) therethrough and a side bore (36) for provision of fluid communication between a tubing string (9?) connected to the pipe hanger (30) and one of the side bores (9) of the wellhead (1), where the wellhead (1) is provided with at least one internal safety valve (42, 44) arranged to be able to shut off fluid communication through the wellhead.Type: GrantFiled: November 30, 2009Date of Patent: November 11, 2014Assignee: West Oil Tools ASInventor: Bjorn Bjerke
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Patent number: 8488712Abstract: Methods and apparatus for enhancing estimations of channel response in a wireless communication system are discussed. As an example, a method can comprise: selecting a selected channel from among one or more channels in the communication system; determining, for the selected channel, an initial channel estimate comprising a sequence of frequency-domain samples; determining a phase slope of the initial channel estimate; generating a flat-phase channel estimate by removing the phase slope from the initial channel estimate; and generating an enhanced channel estimate for the selected channel by applying a smoothing function to the flat-phase channel estimate. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: December 2, 2011Date of Patent: July 16, 2013Assignee: QUALCOMM IncorporatedInventors: Bjorn Bjerke, Steven J Howard
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Patent number: 8467466Abstract: Techniques for performing detection and decoding at a receiver are described. In one scheme, the receiver obtains R received symbol streams for M data streams transmitted by a transmitter, performs receiver spatial processing on the received symbols to obtain detected symbols, performs log-likelihood ratio (LLR) computation independently for each of D best data streams, and performs LLR computation jointly for the M?D remaining data streams, where M>D?1 and M>1. The D best data streams may be selected based on SNR and/or other criteria. In another scheme, the receiver performs LLR computation independently for each of the D best data streams, performs LLR computation jointly for the M?D remaining data streams, and reduces the number of hypotheses to consider for the joint LLR computation by performing a search for candidate hypotheses using list sphere detection, Markov chain Monte Carlo, or some other search technique.Type: GrantFiled: February 1, 2006Date of Patent: June 18, 2013Assignee: QUALCOMM IncorporatedInventors: Bjorn Bjerke, Irina Medvedev, John W. Ketchum, Mark S. Wallace, Jay Rodney Walton
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Publication number: 20120147984Abstract: Methods and apparatus for enhancing estimations of channel response in a wireless communication system are discussed. As an example, a method can comprise: selecting a selected channel from among one or more channels in the communication system; determining, for the selected channel, an initial channel estimate comprising a sequence of frequency-domain samples; determining a phase slope of the initial channel estimate; generating a flat-phase channel estimate by removing the phase slope from the initial channel estimate; and generating an enhanced channel estimate for the selected channel by applying a smoothing function to the flat-phase channel estimate. Other aspects, embodiments, and features are also claimed and described.Type: ApplicationFiled: December 2, 2011Publication date: June 14, 2012Applicant: QUALCOMM INCORPORATEDInventors: Bjorn Bjerke, Steven J. Howard
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Patent number: 8085873Abstract: Disclosed herein are methods and apparatus for enhancing the estimation of channel response in a wireless communication system.Type: GrantFiled: December 27, 2007Date of Patent: December 27, 2011Assignee: QUALCOMM, IncorporatedInventors: Bjorn Bjerke, Steven J. Howard
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Publication number: 20110259597Abstract: A wellhead for subsea use and a method of making same where the wellhead is constituted by a body having a bore (3) therethrough and at least one side bore (9, 11) for provision of fluid communication through the wall of the wellhead (1), and where the wellhead (1) includes a pipe hanger (30) provided with a bore (34) therethrough and a side bore (36) for provision of fluid communication between a tubing string (9?) connected to the pipe hanger (30) and one of the side bores (9) of the wellhead (1), where the wellhead (1) is provided with at least one internal safety valve (42, 44) arranged to be able to shut off fluid communication through the wellhead.Type: ApplicationFiled: November 30, 2009Publication date: October 27, 2011Inventor: Bjorn Bjerke
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Patent number: 7702986Abstract: Method and apparatus for generating codewords with variable length and redundancy from a single Low-Density Parity-Check (LDPC) code with variable length input words. A mother code for encoding data words is generated based on a parity-check matrix, wherein the mother code is adjusted to reflect the size of the data word to be encoded. A generator matrix applies the mother code to data words to produce codewords for transmission. In one embodiment, a reduction criteria is determined and the size of the generator matrix reduced in response. The corresponding parity-check matrix is applied at the receiver for decoding the received codeword.Type: GrantFiled: November 18, 2002Date of Patent: April 20, 2010Assignee: Qualcomm IncorporatedInventors: Bjorn A. Bjerke, John W. Ketchum, Nagabhushana Sindhushayana, Jay Rod Walton
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Publication number: 20080212657Abstract: Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is performed by iteratively passing soft (multi-bit) “a priori” information between a detector and a decoder. The detector receives modulation symbols, performs a detection function that is complementary to the symbol mapping performed at the transmitter, and provides soft-decision symbols for transmitted coded bits. “Extrinsic information” in the soft-decision symbols is then decoded by the decoder to provide its extrinsic information, which comprises the a priori information used by the detector in the detection process. The detection and decoding may be iterated a number of times. The soft-decision symbols and the a priori information may be represented using log-likelihood ratios (LLRs).Type: ApplicationFiled: May 12, 2008Publication date: September 4, 2008Applicant: QUALCOMM INCORPORATEDInventors: Bjorn A. Bjerke, John W. Ketchum, Jay R. Walton
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Publication number: 20080192846Abstract: Disclosed herein are methods and apparatus for enhancing the estimation of channel response in a wireless communication system.Type: ApplicationFiled: December 27, 2007Publication date: August 14, 2008Applicant: QUALCOMM INCORPORATEDInventors: Bjorn Bjerke, Steven J. Howard
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Patent number: 7372896Abstract: Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is performed by iteratively passing soft (multi-bit) “a priori” information between a detector and a decoder. The detector receives modulation symbols, performs a detection function that is complementary to the symbol mapping performed at the transmitter, and provides soft-decision symbols for transmitted coded bits. “Extrinsic information” in the soft-decision symbols is then decoded by the decoder to provide its extrinsic information, which comprises the a priori information used by the detector in the detection process. The detection and decoding may be iterated a number of times. The soft-decision symbols and the a priori information may be represented using log-likelihood ratios (LLRs).Type: GrantFiled: November 8, 2006Date of Patent: May 13, 2008Assignee: Qualcomm IncorporatedInventors: Bjorn Bjerke, John W. Ketchum, Jay Rodney Walton
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Publication number: 20070116143Abstract: Techniques for performing detection and decoding at a receiver are described. In one scheme, the receiver obtains R received symbol streams for M data streams transmitted by a transmitter, performs receiver spatial processing on the received symbols to obtain detected symbols, performs log-likelihood ratio (LLR) computation independently for each of D best data streams, and performs LLR computation jointly for the M?D remaining data streams, where M>D?1 and M>1. The D best data streams may be selected based on SNR and/or other criteria. In another scheme, the receiver performs LLR computation independently for each of the D best data streams, performs LLR computation jointly for the M?D remaining data streams, and reduces the number of hypotheses to consider for the joint LLR computation by performing a search for candidate hypotheses using list sphere detection, Markov chain Monte Carlo, or some other search technique.Type: ApplicationFiled: February 1, 2006Publication date: May 24, 2007Inventors: Bjorn Bjerke, Irina Medvedev, John Ketchum, Mark Wallace, Jay Walton
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Patent number: 7197084Abstract: Techniques for preceding data for a multipath channel in a MIMO system. In one method, data is coded in accordance with one or more coding schemes to provide coded data, which is further modulated (i.e., symbol mapped) in accordance with one or more modulation schemes to provide modulation symbols. An estimated response of the MIMO channel is obtained (e.g., provided by a receiver), and an equivalent channel response is derived based on the estimated MIMO channel response and a response of a feed-forward filter of a decision feedback equalizer. The modulation symbols are then precoded based on the equivalent channel response to provide precoded symbols, which are further preconditioned based on the estimated MIMO channel response (e.g., using spatio-temporal pulse-shaping) to provide preconditioned symbols for transmission over the MIMO channel. The feed-forward filter may be adapted based on a minimum mean square error (MMSE) criterion.Type: GrantFiled: March 27, 2002Date of Patent: March 27, 2007Assignee: Qualcomm IncorporatedInventors: John W. Ketchum, Bjorn A. Bjerke
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Publication number: 20070064831Abstract: Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is performed by iteratively passing soft (multi-bit) “a priori” information between a detector and a decoder. The detector receives modulation symbols, performs a detection function that is complementary to the symbol mapping performed at the transmitter, and provides soft-decision symbols for transmitted coded bits. “Extrinsic information” in the soft-decision symbols is then decoded by the decoder to provide its extrinsic information, which comprises the a priori information used by the detector in the detection process. The detection and decoding may be iterated a number of times. The soft-decision symbols and the a priori information may be represented using log-likelihood ratios (LLRs).Type: ApplicationFiled: November 8, 2006Publication date: March 22, 2007Applicant: QUALCOMM, INCORPORATEDInventors: Bjorn Bjerke, John Ketchum, Jay Walton
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Patent number: 7154936Abstract: Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is performed by iteratively passing soft (multi-bit) “a priori” information between a detector and a decoder. The detector receives modulation symbols, performs a detection function that is complementary to the symbol mapping performed at the transmitter, and provides soft-decision symbols for transmitted coded bits. “Extrinsic information” in the soft-decision symbols is then decoded by the decoder to provide its extrinsic information, which comprises the a priori information used by the detector in the detection process. The detection and decoding may be iterated a number of times. The soft-decision symbols and the a priori information may be represented using log-likelihood ratios (LLRs).Type: GrantFiled: December 3, 2001Date of Patent: December 26, 2006Assignee: Qualcomm, IncorporatedInventors: Bjorn A. Bjerke, John W. Ketchum, Jay R. Walton
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Method of manufacturing and laying a plurality of elongate elements to the outside of a core element
Patent number: 7047616Abstract: In a method of manufacturing and laying a plurality of elongate elements into an umbilical comprising a core element, a plurality of conduits of metal and if necessary at least one cable situated outside the core element, which core element is advanced along a feed line and the conduits and the cables are fed onto the outside of the core element and laid in a helix, a first group of single lengths of metal tubes forming the conduits are provided parallel one to another, the single lengths are advanced in the direction of the feed line, a second group of single lengths of metal tubes are provided parallel one to another, the lengths of the second group are advanced in the direction of the feed line and the first ends of the lengths of the second group are welded to the second end of the lengths of the first group, further groups of single lengths of metal tubes are provided and welded to the lengths of the foregoing group respective by, the metal tubes welded together are laid to the outside of the core elemenType: GrantFiled: December 10, 2003Date of Patent: May 23, 2006Assignee: NexansInventors: Bjorn Bjerke, Per Aage Kristensen, Lars Tangen -
Publication number: 20050157811Abstract: Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is performed by iteratively passing soft (multi-bit) “a priori” information between a detector and a decoder. The detector receives modulation symbols, performs a detection function that is complementary to the symbol mapping performed at the transmitter, and provides soft-decision symbols for transmitted coded bits. “Extrinsic information” in the soft-decision symbols is then decoded by the decoder to provide its extrinsic information, which comprises the a priori information used by the detector in the detection process. The detection and decoding may be iterated a number of times. The soft-decision symbols and the a priori information may be represented using log-likelihood ratios (LLRs).Type: ApplicationFiled: March 15, 2005Publication date: July 21, 2005Inventors: Bjorn Bjerke, John Ketchum, Jay Walton
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Method of manufacturing and laying a plurality of elongate elements to the outside of a core element
Publication number: 20040148752Abstract: In a method of manufacturing and laying a plurality of elongate elements into an umbilical comprising a core element, a plurality of conduits of metal and if necessary at least one cable situated outside the core element, which core element is advanced along a feed line and the conduits and the cables are fed onto the outside of the core element and laid in a helix, a first group of single lengths of metal tubes forming the conduits are provided parallel one to another, the single lengths are advanced in the direction of the feed line, a second group of single lengths of metal tubes are provided parallel one to another, the lengths of the second group are advanced in the direction of the feed line and the first ends of the lengths of the second group are welded to the second end of the lengths of the first group, further groups of single lengths of metal tubes are provided and welded to the lengths of the foregoing group respective by, the metal tubes welded together are laid to the outside of the core elemenType: ApplicationFiled: December 10, 2003Publication date: August 5, 2004Inventors: Bjorn Bjerke, Per Aage Kristensen, Lars Tangen -
Publication number: 20040098659Abstract: Method and apparatus for generating codewords with variable length and redundancy from a single Low-Density Parity-Check (LDPC) code with variable length input words. A mother code for encoding data words is generated based on a parity-check matrix, wherein the mother code is adjusted to reflect the size of the data word to be encoded. A generator matrix applies the mother code to data words to produce codewords for transmission. In one embodiment, a reduction criteria is determined and the size of the generator matrix reduced in response. The corresponding parity-check matrix is applied at the receiver for decoding the received codeword.Type: ApplicationFiled: November 18, 2002Publication date: May 20, 2004Inventors: Bjorn A. Bjerke, John W. Ketchum, Nagabhushana Sindhushayana, Jay Rod Walton