Patents by Inventor Richard Kevin Sawyer, Jr.
Richard Kevin Sawyer, Jr. 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: 20230354196Abstract: A wake-up radio system in a wireless sensor network, the wake-up radio comprising: an analog front end configured to communicate with matching network; an analog to digital converter coupled to the analog front end; and a digital baseband coupled to the analog to digital converter, wherein the digital baseband outputs a fast wake-up signal and a secure wake-up signal, and wherein the wake-up radio listens to all channels simultaneously.Type: ApplicationFiled: July 7, 2023Publication date: November 2, 2023Applicant: Everactive, Inc.Inventors: David D. Wentzloff, Kuo-Ken Huang, Farah Bassam Yahya, Jonathan Kirk Brown, Richard Kevin Sawyer, JR., Nicholas Andrew Clark Collins, David Sharif Abdallah, Christopher Shaw
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Patent number: 11758480Abstract: A wake-up radio system in a wireless sensor network, the wake-up radio comprising: an analog front end configured to communicate with matching network; an analog to digital converter coupled to the analog front end; and a digital baseband coupled to the analog to digital converter, wherein the digital baseband outputs a fast wake-up signal and a secure wake-up signal, and wherein the wake-up radio listens to all channels simultaneously.Type: GrantFiled: February 15, 2021Date of Patent: September 12, 2023Assignee: EVERACTIVE INC.Inventors: David D. Wentzloff, Kuo-Ken Huang, Farah Bassam Yahya, Christopher John Lukas, Jonathan Kirk Brown, Richard Kevin Sawyer, Jr., Nicholas Andrew Clark Collins, David Sharif Abdallah, Christopher Shaw
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Publication number: 20210258878Abstract: A wake-up radio system in a wireless sensor network, the wake-up radio comprising: an analog front end configured to communicate with matching network; an analog to digital converter coupled to the analog front end; and a digital baseband coupled to the analog to digital converter, wherein the digital baseband outputs a fast wake-up signal and a secure wake-up signal, and wherein the wake-up radio listens to all channels simultaneously.Type: ApplicationFiled: February 15, 2021Publication date: August 19, 2021Applicant: EVERACTIVE INC.Inventors: David D. Wentzloff, Kuo-Ken Huang, Farah Bassam Yahya, Christopher John Lukas, Jonathan Kirk Brown, Richard Kevin Sawyer, JR., Nicholas Andrew Clark Collins, David Sharif Abdallah, Christopher Shaw
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Patent number: 10234536Abstract: A method of geolocating comprises: receiving wirelessly, at an asset located on the Earth's surface and from at least two airborne aircraft, ADS-B signals, respectively; interpolating, using a Bayes filter, at least some state information of the at least two airborne aircraft based on the ADS-B signals, respectively; determining differences in received signal strength indicator (RSSI) values (RSSI-difference values) of successive aircraft-specific ADS-B signals, respectively; estimating, using a likelihood function, locations of the asset based on the RSSI-difference values, the ADS-B signals and the interpolated state information, respectively, thereby producing a set of estimated locations; and searching amongst the set to find one of the estimated locations that is regarded as being most likely to most accurately describe an actual position of the asset.Type: GrantFiled: November 29, 2015Date of Patent: March 19, 2019Assignee: LINK LABS, INC.Inventors: Ricardo Luna, Jr., Adrian Sapio, Richard Kevin Sawyer, Jr., Mark Olden Bloechl
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Patent number: 9860882Abstract: A method of operating an end node to communicate with a central node, the method comprising: wirelessly receiving, a beacon signal periodically-transmitted from the central node; each beacon signal denoting the start of a single frame; each frame being organized to include a downlink (DL) phase which precedes an uplink (UL) phase; and a payload of the beacon signal including an offset which represents a starting time of the UL phase. The method further comprises: generating a message; selecting, unbeknownst to the central node, at least one UL logical-channel, respectively; and wirelessly transmitting, during the UL phase, at least a portion of the message from the end node over the selected at least one UL logical-channel according to a slotted ALOHA technique.Type: GrantFiled: November 2, 2015Date of Patent: January 2, 2018Assignee: LINK LABS, INC.Inventors: Adrian Sapio, Richard Kevin Sawyer, Jr., Allen Parker Welkie, Ricardo Luna, Jr.
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Patent number: 9775157Abstract: A method, of operating an end node to wirelessly communicate with a central node, includes: receiving wirelessly a current instance of a beacon signal periodically-transmitted from the central node; measuring a received power, PB-RX, of the beacon signal; reading locally-stored values of PB-TX and G representing a presumed transmitted power of the beacon signal and a performance goal of the end node, respectively; determining, for a given channel, a path loss, PL, based on the PB-RX and the PB-TX; and adaptively setting an energy level, EN-TX, of a forthcoming message to be transmitted from the end node by adaptively determining, based on PL and G, at least two of: a level of power, PN-TX; a forward error correction coding rate, c; and a spreading factor, SF; and a modulation format, M.Type: GrantFiled: December 9, 2015Date of Patent: September 26, 2017Assignee: Link Labs, Inc.Inventors: Ricardo Luna, Jr., Adrian Sapio, Richard Kevin Sawyer, Jr.
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Publication number: 20170153323Abstract: A method of geolocating comprises: receiving wirelessly, at an asset located on the Earth's surface and from at least two airborne aircraft, ADS-B signals, respectively; interpolating, using a Bayes filter, at least some state information of the at least two airborne aircraft based on the ADS-B signals, respectively; determining differences in received signal strength indicator (RSSI) values (RSSI-difference values) of successive aircraft-specific ADS-B signals, respectively; estimating, using a likelihood function, locations of the asset based on the RSSI-difference values, the ADS-B signals and the interpolated state information, respectively, thereby producing a set of estimated locations; and searching amongst the set to find one of the estimated locations that is regarded as being most likely to most accurately describe an actual position of the asset.Type: ApplicationFiled: November 29, 2015Publication date: June 1, 2017Applicant: Link Labs, Inc.Inventors: Ricardo LUNA, JR., Adrian SAPIO, Richard Kevin SAWYER, JR., Mark Olden BLOECHL
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Publication number: 20170127403Abstract: A method of operating an end node to communicate with a central node, the method comprising: wirelessly receiving, a beacon signal periodically-transmitted from the central node; each beacon signal denoting the start of a single frame; each frame being organized to include a downlink (DL) phase which precedes an uplink (UL) phase; and a payload of the beacon signal including an offset which represents a starting time of the UL phase. The method further comprises: generating a message; selecting, unbeknownst to the central node, at least one UL logical-channel, respectively; and wirelessly transmitting, during the UL phase, at least a portion of the message from the end node over the selected at least one UL logical-channel according to a slotted ALOHA technique.Type: ApplicationFiled: November 2, 2015Publication date: May 4, 2017Applicant: LINK LABS, LLCInventors: Adrian SAPIO, Richard Kevin SAWYER, Jr., Allen Parker WELKIE, Ricardo LUNA, Jr.
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Publication number: 20160323886Abstract: A method, of operating an end node to wirelessly communicate with a central node, includes: receiving wirelessly a current instance of a beacon signal periodically-transmitted from the central node; measuring a received power, PB-RX, of the beacon signal; reading locally-stored values of PB-TX and G representing a presumed transmitted power of the beacon signal and a performance goal of the end node, respectively; determining, for a given channel, a path loss, PL, based on the PB-RX and the PB-TX; and adaptively setting an energy level, EN-TX, of a forthcoming message to be transmitted from the end node by adaptively determining, based on PL and G, at least two of: a level of power, PN-TX; a forward error correction coding rate, c; and a spreading factor, SF; and a modulation format, M.Type: ApplicationFiled: December 9, 2015Publication date: November 3, 2016Applicant: Link Labs, Inc.Inventors: Ricardo LUNA, JR., Adrian SAPIO, Richard Kevin SAWYER, JR.
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Patent number: 9264099Abstract: A method (of operating an end node) includes: wirelessly receiving an instance of a non-hopping beacon signal, B, periodically-transmitted from a central node; interpreting a frequency-block hopping guide (FBHG) according to FN(i) and IDCN thereby to determine a corresponding set, CSET(i), of at least two channels available to the end node for transmission, respectively, during frame FN(i); selecting, at least pseudo-randomly, at least one channel amongst the set CSET(i); and wirelessly transmitting at least one message from the end node using the at least one selected channel, respectively. Each instance B(i) includes: a corresponding frame number, FN(i); and an identification, IDCN, of the central node. The FBHG establishes: a total of L frames; a set of channels CSET for each frame, respectively; and that, for any two consecutive ones of the L frames, FN(j) and FN(j+1), the corresponding sets CSET(j) and CSET(j+1) will be different, CSET(j)?CSET(j+1).Type: GrantFiled: June 2, 2015Date of Patent: February 16, 2016Assignee: Link Labs, INC.Inventors: Adrian Sapio, Richard Kevin Sawyer, Jr.
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Patent number: 9253727Abstract: A method, of operating an end node to wirelessly communicate with a central node, includes: receiving wirelessly a current instance of a beacon signal periodically-transmitted from the central node; measuring a received power, PB-RX, of the beacon signal; reading locally-stored values of PB-TX and G representing a presumed transmitted power of the beacon signal and a performance goal of the end node, respectively; determining, for a given channel, a path loss, PL, based on the PB-RX and the PB-TX; and adaptively setting an energy level, EN-TX, of a forthcoming message to be transmitted from the end node based on PL and G.Type: GrantFiled: May 1, 2015Date of Patent: February 2, 2016Assignee: LINK LABS, INC.Inventors: Ricardo Luna, Jr., Adrian Sapio, Richard Kevin Sawyer, Jr.