Patents by Inventor Heng Lou
Heng Lou 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: 10856299Abstract: Examples of devices, methods, systems, and machine readable media for reducing the burden of a master device of a second wireless connection by utilizing the channel map of a first wireless connection are provided. Since both the first and second wireless connections are located at nearly the same location, the “good channels” are very similar for both connections. Therefore a second wireless connection may take advantage of the channel assessment conducted by a first wireless connection in identifying channels by using one or more channels of the first wireless connection for communications in the second wireless connection.Type: GrantFiled: August 6, 2018Date of Patent: December 1, 2020Assignee: Starkey Laboratories, Inc.Inventors: Heng Lou, Jeffrey Paul Solum, Chaitanya Jidge
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Publication number: 20180352551Abstract: Disclosed in some examples are devices, methods, systems, and machine readable media that reduce the burden of a master device of a second wireless connection by utilizing the channel map of a first wireless connection. Since both the first and second wireless connections are located at nearly the same location, the “good channels” are very similar for both connections. Therefore a second wireless connection may take advantage of the channel assessment conducted by a first wireless connection in identifying channels by using one or more channels of the first wireless connection for communications in the second wireless connection.Type: ApplicationFiled: August 6, 2018Publication date: December 6, 2018Inventors: Heng Lou, Jeffrey Paul Solum, Chaitanya Jidge
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Patent number: 10045354Abstract: Disclosed in some examples are devices, methods, systems, and machine readable media that reduce the burden of a master device of a second wireless connection by utilizing the channel map of a first wireless connection. Since both the first and second wireless connections are located at nearly the same location, the “good channels” are very similar for both connections. Therefore a second wireless connection may take advantage of the channel assessment conducted by a first wireless connection in identifying channels by using one or more channels of the first wireless connection for communications in the second wireless connection.Type: GrantFiled: March 24, 2016Date of Patent: August 7, 2018Assignee: Starkey Laboratories, Inc.Inventors: Heng Lou, Jeffrey Paul Solum, Chaitanya Jidge
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Publication number: 20170280458Abstract: Disclosed in some examples are devices, methods, systems, and machine readable media that reduce the burden of a master device of a second wireless connection by utilizing the channel map of a first wireless connection. Since both the first and second wireless connections are located at nearly the same location, the “good channels” are very similar for both connections. Therefore a second wireless connection may take advantage of the channel assessment conducted by a first wireless connection in identifying channels by using one or more channels of the first wireless connection for communications in the second wireless connection.Type: ApplicationFiled: March 24, 2016Publication date: September 28, 2017Inventors: Heng Lou, Jeffrey Paul Solum, Chaitanya Jidge
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Patent number: 8576693Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.Type: GrantFiled: December 5, 2011Date of Patent: November 5, 2013Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lee Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Patent number: 8547824Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.Type: GrantFiled: April 11, 2012Date of Patent: October 1, 2013Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lee Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Patent number: 8406115Abstract: Systems and methods for orthogonal frequency division multiplexing are provided.Type: GrantFiled: June 10, 2011Date of Patent: March 26, 2013Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Patent number: 8351321Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals to produce a receiver output; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor coupled to the receiver, wherein the processor applies a Fourier transform to the receiver output; and a controller programmed to instruct the transmitter to transmit at least one symbol representing a request for bandwidth allocation on a first carrier; wherein the controller is further programmed to determine when a collision has occurred on the first carrier.Type: GrantFiled: October 29, 2007Date of Patent: January 8, 2013Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S Russell, Calvin G Nelson, Niranjan R Samant, Joseph F Chiapetta, Scott Sarnikowski
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Publication number: 20120195184Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.Type: ApplicationFiled: April 11, 2012Publication date: August 2, 2012Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Patent number: 8174956Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.Type: GrantFiled: October 29, 2007Date of Patent: May 8, 2012Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S Russell, Calvin G Nelson, Niranjan R Samant, Joseph F Chiappetta, Scott Sarnikowski
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Publication number: 20120076183Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.Type: ApplicationFiled: December 5, 2011Publication date: March 29, 2012Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lee Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Patent number: 8089853Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; a transmitter; a processor coupled to the transmitter, wherein the processor outputs data for transmission to the transmitter, wherein the processor applies an inverse Fourier transform algorithm to the data provided to the transmitter; a controller programed to instruct the transmitter to transmit a predetermined identifier on at least one of the spectrally overlapping carrier signals, the predetermined identifier identifying to a first remote unit a range of the plurality of spectrally overlapping carrier signals for the first remote unit to receive control information.Type: GrantFiled: October 29, 2007Date of Patent: January 3, 2012Assignee: HTC CorporationInventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S Russell, Calvin G Nelson, Niranjan R Samant, Joseph F Chiappetta, Scott Sarnikowski
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Patent number: 7881181Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remotes, the carrier signals are modulated using an inverse Fourier transform; a transmitter; a processor coupled to the transmitter, the processor outputs data for transmission to the transmitter, the processor applies an inverse Fourier transform to the data provided to the transmitter; a controller programmed to instruct the transmitter to transmit timing adjustments to the at least two of the plurality of remotes, the timing adjustments instruct the at least two of the plurality of remotes to adjust transmission timing so that transmitted symbols associated with frames of a predetermined multiframe structure are received in sequence from the at least two of the plurality of remotes based on the structure.Type: GrantFiled: October 29, 2007Date of Patent: February 1, 2011Assignee: ADC Telecommunications, Inc.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S Russell, Calvin G Nelson, Niranjan R Samant, Joseph F Chiappetta, Scott Sarnikowski
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Publication number: 20100102987Abstract: A power line based communication system includes a power line termination module, a plurality of power line gateways, and a plurality of power line nodes. The power line termination module manages data for local area networks within the power line based communication system. The plurality of power line gateways is arranged in sets of power line gateways, wherein each set of power line gateways constitutes a local area network. Each of the plurality of power line nodes is operably coupled to the power line termination module via a high-speed communication path. In addition, each power line node is operably coupled to set of power line gateways, i.e., to a local area network, via power lines of a local transformer. Each of the power line nodes receives data for its respective LAN from the power line termination module and provides the data to the power line gateways of its LAN via the power lines of the local transformer.Type: ApplicationFiled: December 18, 2009Publication date: April 29, 2010Inventors: Heng Lou, Clifford A. Davidow
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Patent number: 7664117Abstract: A power line based communication system includes a power line termination module, a plurality of power line gateways, and a plurality of power line nodes. The power line termination module manages data for local area networks within the power line based communication system. The plurality of power line gateways is arranged in sets of power line gateways, wherein each set of power line gateways constitutes a local area network. Each of the plurality of power line nodes is operably coupled to the power line termination module via a high-speed communication path. In addition, each power line node is operably coupled to set of power line gateways, i.e., to a local area network, via power lines of a local transformer. Each of the power line nodes receives data for its respective LAN from the power line termination module and provides the data to the power line gateways of its LAN via the power lines of the local transformer.Type: GrantFiled: January 31, 2007Date of Patent: February 16, 2010Assignee: Current Grid, LLCInventors: Heng Lou, Clifford A. Davidow
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Publication number: 20090238065Abstract: Systems and methods for round-trip-delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing (OFDM) system are provided. In one embodiment, a method for a remote unit to request bandwidth in an Orthogonal Frequency Division Multiplexing (OFDM) multi-point to point system comprises: transmitting a signal from a remote unit having a request for bandwidth to a host unit on a first tone, the signal from the remote unit configured to combine with a signal from at least one other remote unit on a different tone to form a coherent OFDM waveform; determining when a collision has occurred on the first tone between the signal transmitted by the remote unit and a signal from at least one other remote unit; and when a collision occurs, re-transmitting the request for bandwidth on the first tone.Type: ApplicationFiled: May 29, 2009Publication date: September 24, 2009Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Publication number: 20090225818Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals to produce a receiver output; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor coupled to the receiver, wherein the processor applies a Fourier transform to the receiver output; and a controller programmed to instruct the transmitter to transmit at least one symbol representing a request for bandwidth allocation on a first carrier; wherein the controller is further programmed to determine when a collision has occurred on the first carrier.Type: ApplicationFiled: October 29, 2007Publication date: September 10, 2009Applicant: ADC Telecommunications, Inc.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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METHODS AND SYSTEMS FOR SELECTING MODULATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
Publication number: 20090092040Abstract: Methods and systems for selecting modulation in an orthogonal frequency division multiplexing system are provided. In one embodiment, a method for a remote unit of an OFDM multipoint-to-point communications system comprises: establishing communication between a first remote unit and a host unit, the first remote unit and a plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; transmitting a plurality of tones from the first remote unit such that tones from the first remote unit and at least one other remote unit are simultaneously received at the host unit, the plurality of tones modulated with upstream information using OFDM; modulating up to a plurality of tones using a first modulation scheme when transmitting a first type of upstream information; and modulating up to a plurality of tones using a second modulation scheme when transmitting a second type of upstream information.Type: ApplicationFiled: November 17, 2008Publication date: April 9, 2009Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski -
Publication number: 20090080552Abstract: Systems for multiple use subchannels are provided. In one embodiment, a bidirectional communication system comprises: a first remote unit for communicating with a host using OFDM, the host communicatively coupled to a plurality of remote units in a multipoint-to-point configuration. The first remote unit is configured to transmit up to a plurality of tones, the up to a plurality of tones modulated with upstream information using OFDM, the first remote unit including a modulator for modulating the up to a plurality of tones using OFDM. The modulator is configured to adjust a carrier frequency and timing of the plurality of tones such that when any tones are transmitted from the first remote unit and at least one other remote unit, the orthogonality of the tones when received at the host unit is improved. Both control data and payload data are transmitted on a first tone of the plurality of tones.Type: ApplicationFiled: November 17, 2008Publication date: March 26, 2009Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski
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Publication number: 20090080554Abstract: Systems and methods for OFDM tone allocation are provided. In one embodiment, an end-user communication device comprises: a first remote unit for communicating with a host unit using orthogonal frequency division multiplexing (OFDM), the host unit communicatively coupled to a plurality of remote units in a multipoint-to-point configuration, wherein OFDM waveform from distinct remote units of the plurality of remote units combine to a unified OFDM waveform at the host unit. The first remote unit is configured to transmit up to a plurality of tones, the up to a plurality of tones modulated with upstream information using OFDM. The first remote unit is configured to determine when bandwidth is needed for upstream transmission to the host unit. The first remote unit is configured to transmit a request for bandwidth to the host unit on a first tone of the plurality of tones, wherein access to the first tone is contention-based.Type: ApplicationFiled: November 17, 2008Publication date: March 26, 2009Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Mark J. Dapper, Michael J. Geile, Terrance J. Hill, Harold A. Roberts, Brian D. Anderson, Jeffrey Brede, Mark S. Wadman, Robert J. Kirscht, James J. Herrmann, Michael J. Fort, Steven P. Buska, Jeff Solum, Debra Lea Enfield, Darrell Berg, Thomas Smigelski, Thomas C. Tucker, Joe Hall, John M. Logajan, Somvay Boualouang, Heng Lou, Mark D. Elpers, Matt Downs, Tammy Ferris, Adam Opoczynski, David S. Russell, Calvin G. Nelson, Niranjan R. Samant, Joseph F. Chiappetta, Scott Sarnikowski