Patents by Inventor Cimarron Mittelsteadt
Cimarron Mittelsteadt 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: 9634874Abstract: An orthogonal frequency division multiplexing (OFDM) communication system includes a first interface having a first cable coupler to couple to a first end of a coaxial cable, and a first plurality of signal pathways coupled to the first cable coupler. Each signal pathway of the first plurality includes a physical (PHY) layer component and a radio frequency (RF) front end coupled to the PHY layer component. The system further includes a second interface having a second cable coupler to couple to a second end of a coaxial cable, and a second plurality of signal pathways coupled to the second cable coupler. Each signal pathway of the second plurality corresponds to a signal pathway of the first plurality and includes a PHY layer component and an RF front end coupled to the PHY layer component.Type: GrantFiled: January 19, 2016Date of Patent: April 25, 2017Assignee: VIXS SYSTEMS INC.Inventors: Cimarron Mittelsteadt, Amit Ranjan Dubey, Michael Cave
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Patent number: 9413632Abstract: A technique for communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, is disclosed. In an embodiment, the technique involves establishing a primary channel for communicating between first and second nodes of the coaxial cable network, establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network, wherein the primary and secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames, and communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel.Type: GrantFiled: January 7, 2013Date of Patent: August 9, 2016Assignee: ENTROPIC COMMUNICATIONS, LLCInventors: Rahul Malik, Vipin Aggarwal, Albert Garrett, Etan Cohen, Cimarron Mittelsteadt
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Publication number: 20160211996Abstract: An orthogonal frequency division multiplexing (OFDM) communication system includes a first interface having a first cable coupler to couple to a first end of a coaxial cable, and a first plurality of signal pathways coupled to the first cable coupler. Each signal pathway of the first plurality includes a physical (PHY) layer component and a radio frequency (RF) front end coupled to the PHY layer component. The system further includes a second interface having a second cable coupler to couple to a second end of a coaxial cable, and a second plurality of signal pathways coupled to the second cable coupler. Each signal pathway of the second plurality corresponds to a signal pathway of the first plurality and includes a PHY layer component and an RF front end coupled to the PHY layer component.Type: ApplicationFiled: January 19, 2016Publication date: July 21, 2016Inventors: Cimarron Mittelsteadt, Amit Ranjan Dubey, Michael Cave
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Patent number: 9306716Abstract: A carrier tracking technique includes allocating a first number of bits per symbol to a carrier tracking subcarrier of a plurality of subcarriers of an orthogonal frequency division multiplexing (OFDM) signal based on a first target performance margin. The technique includes allocating numbers of bits per symbol to other subcarriers of the plurality of subcarriers based on a second target performance margin.Type: GrantFiled: July 14, 2014Date of Patent: April 5, 2016Assignee: ViXS Systems, Inc.Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Publication number: 20150381469Abstract: A technique for communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, is disclosed. In an embodiment, the technique involves establishing a primary channel for communicating between first and second nodes of the coaxial cable network, establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network, wherein the primary and secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames, and communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel.Type: ApplicationFiled: January 7, 2013Publication date: December 31, 2015Applicant: ENTROPIC COMMUNICATIONS, INC.Inventors: Rahul Malik, Vipin Aggarwal, Albert Garrett, Etan Cohen, Cimarron Mittelsteadt
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Patent number: 9184942Abstract: An automatic gain control technique generates one or more gain control signals based on a known sequence of samples received in a preamble of a packet received over a particular communications link and generates one or more adjusted gain control signals based on a previously unknown sequence of samples received in a payload of a packet. In at least one embodiment of the gain control technique, time domain samples of the preamble of a symbol are used to generate the one or more gain control signals. In at least one embodiment of the gain control technique, frequency domain samples are used to generate the one or more adjusted gain control signals. The one or more gain control signals include digital and/or analog gain control signals that are provided to digital signal processing modules and/or analog circuits in an interface circuit, respectively, to adjust the gain applied to a received signal.Type: GrantFiled: January 9, 2012Date of Patent: November 10, 2015Assignee: ViXS Systems, Inc.Inventors: Cheng-Chou Lan, Cimarron Mittelsteadt
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Patent number: 9008195Abstract: A technique detects the presence of a packet identification sequence in a received sequence of samples received over a communications network. The packet identification sequence, when present and properly detected in a received packet, is used to determine a particular type of the received packet from a plurality of packet types that may be received over the communications network. The technique for detecting the packet identification sequence includes detecting a null sequence in the received packet and a predetermined identification sequence in the packet. Detection of the predetermined sequence uses energy estimates for corresponding windows of received samples.Type: GrantFiled: January 9, 2012Date of Patent: April 14, 2015Assignee: ViXS Systems, Inc.Inventors: Cheng-Chou Lan, Cimarron Mittelsteadt
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Patent number: 8971463Abstract: A method includes generating representative noise variance estimates based on a plurality of received symbols received in an orthogonal frequency division multiplexing (OFDM) signal. The representative noise variance estimates correspond to respective frequency intervals of a plurality of frequency intervals of the OFDM channel. Individual frequency intervals of the plurality of frequency intervals include a plurality of contiguous frequency bins of the OFDM signal.Type: GrantFiled: November 18, 2011Date of Patent: March 3, 2015Assignee: ViXS Systems, Inc.Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Publication number: 20140321403Abstract: A carrier tracking technique includes allocating a first number of bits per symbol to a carrier tracking subcarrier of a plurality of subcarriers of an orthogonal frequency division multiplexing (OFDM) signal based on a first target performance margin. The technique includes allocating numbers of bits per symbol to other subcarriers of the plurality of subcarriers based on a second target performance margin.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Patent number: 8817918Abstract: A method of operating a communications system includes generating a channel impulse response estimate based on a first received signal. The method includes selecting a precursor and a cyclic prefix length for a second received signal based on the channel impulse response estimate, a target cyclic prefix energy level, and a predetermined range of cyclic prefix lengths.Type: GrantFiled: December 13, 2011Date of Patent: August 26, 2014Assignee: ViXS Systems, Inc.Inventors: Amit Ranjan Dubey, Cimarron Mittelsteadt
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Patent number: 8780838Abstract: A carrier tracking technique includes allocating a first number of bits per symbol to a carrier tracking subcarrier of a plurality of subcarriers of an orthogonal frequency division multiplexing (OFDM) signal based on a first target performance margin. The technique includes allocating numbers of bits per symbol to other subcarriers of the plurality of subcarriers based on a second target performance margin.Type: GrantFiled: November 18, 2011Date of Patent: July 15, 2014Assignee: ViXS Systems, Inc.Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Publication number: 20140192803Abstract: A technique for communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, is disclosed. In an embodiment, the technique involves establishing a primary channel for communicating between first and second nodes of the coaxial cable network, establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network, wherein the primary and secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames, and communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Applicant: ENTROPIC COMMUNICATIONS, INC.Inventors: Rahul Malik, Vipin Aggarwal, Albert Garrett, Etan Cohen, Cimarron Mittelsteadt
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Patent number: 8774330Abstract: A coarse timing acquisition technique includes generating a sequence detection indicator. The sequence detection indicator indicates detection of a sequence of repeated symbols in a received signal. The sequence detection indicator is based on a first energy threshold and a normalized moving sum of an autocorrelation signal. The autocorrelation signal is based on the received signal.Type: GrantFiled: December 13, 2011Date of Patent: July 8, 2014Assignee: ViXS Systems, Inc.Inventors: Amit Ranjan Dubey, Cimarron Mittelsteadt
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Publication number: 20130177112Abstract: An automatic gain control technique generates one or more gain control signals based on a known sequence of samples received in a preamble of a packet received over a particular communications link and generates one or more adjusted gain control signals based on a previously unknown sequence of samples received in a payload of a packet. In at least one embodiment of the gain control technique, time domain samples of the preamble of a symbol are used to generate the one or more gain control signals. In at least one embodiment of the gain control technique, frequency domain samples are used to generate the one or more adjusted gain control signals. The one or more gain control signals include digital and/or analog gain control signals that are provided to digital signal processing modules and/or analog circuits in an interface circuit, respectively, to adjust the gain applied to a received signal.Type: ApplicationFiled: January 9, 2012Publication date: July 11, 2013Inventors: Cheng-Chou Lan, Cimarron Mittelsteadt
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Publication number: 20130177088Abstract: A technique detects the presence of a packet identification sequence in a received sequence of samples received over a communications network. The packet identification sequence, when present and properly detected in a received packet, is used to determine a particular type of the received packet from a plurality of packet types that may be received over the communications network. The technique for detecting the packet identification sequence includes detecting a null sequence in the received packet and a predetermined identification sequence in the packet. Detection of the predetermined sequence uses energy estimates for corresponding windows of received samples.Type: ApplicationFiled: January 9, 2012Publication date: July 11, 2013Inventors: Cheng-Chou Lan, Cimarron Mittelsteadt
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Publication number: 20130148767Abstract: A method of operating a communications system includes generating a channel impulse response estimate based on a first received signal. The method includes selecting a precursor and a cyclic prefix length for a second received signal based on the channel impulse response estimate, a target cyclic prefix energy level, and a predetermined range of cyclic prefix lengths.Type: ApplicationFiled: December 13, 2011Publication date: June 13, 2013Inventors: Amit Ranjan Dubey, Cimarron Mittelsteadt
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Publication number: 20130148765Abstract: A coarse timing acquisition technique includes generating a sequence detection indicator. The sequence detection indicator indicates detection of a sequence of repeated symbols in a received signal. The sequence detection indicator is based on a first energy threshold and a normalized moving sum of an autocorrelation signal. The autocorrelation signal is based on the received signal.Type: ApplicationFiled: December 13, 2011Publication date: June 13, 2013Inventors: Amit Ranjan Dubey, Cimarron Mittelsteadt
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Publication number: 20130128995Abstract: A method includes generating representative noise variance estimates based on a plurality of received symbols received in an orthogonal frequency division multiplexing (OFDM) signal. The representative noise variance estimates correspond to respective frequency intervals of a plurality of frequency intervals of the OFDM channel. Individual frequency intervals of the plurality of frequency intervals include a plurality of contiguous frequency bins of the OFDM signal.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Publication number: 20130128822Abstract: A carrier tracking technique includes allocating a first number of bits per symbol to a carrier tracking subcarrier of a plurality of subcarriers of an orthogonal frequency division multiplexing (OFDM) signal based on a first target performance margin. The technique includes allocating numbers of bits per symbol to other subcarriers of the plurality of subcarriers based on a second target performance margin.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Inventors: Cimarron Mittelsteadt, Cheng-Chou Lan
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Patent number: 8351368Abstract: A technique for communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, is disclosed. In an embodiment, the technique involves establishing a primary channel for communicating between first and second nodes of the coaxial cable network, establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network, wherein the primary and secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames, and communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel.Type: GrantFiled: October 3, 2008Date of Patent: January 8, 2013Assignee: Entropic Communications, Inc.Inventors: Rahul Malik, Vipin Aggarwal, Albert Garrett, Etan Cohen, Cimarron Mittelsteadt