Patents by Inventor Patrick Stapleton

Patrick Stapleton 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).

  • Publication number: 20220113431
    Abstract: A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a remote location. The plurality of remote DRUs are operable to receive signals from a plurality of local DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs and a GPS receiver at the remote location used in a feedback loop with the DRU to control the delays.
    Type: Application
    Filed: October 25, 2021
    Publication date: April 14, 2022
    Inventor: Shawn Patrick STAPLETON
  • Patent number: 11297603
    Abstract: A remote radio head unit (RRU) system for achieving high data rate communications in a Distributed Antenna System is disclosed. The Distributed Antenna System is configured as a Neutral Host enabling multiple operators to exist on one DAS system. The present disclosure enables a remote radio head unit to be field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. As a result, the remote radio head system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 5, 2022
    Assignee: DALI WIRELESS, INC.
    Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic
  • Publication number: 20220104093
    Abstract: Methods and apparatuses are presented for balancing non-uniformly distributed network traffic in a wireless communications system having a plurality of digital remote units (DRUs). In some embodiments, a method comprises partitioning the plurality of DRUs into a plurality of DRU sectors, and dynamically repartitioning the plurality of DRU sectors depending on traffic conditions in at least one of the DRU sectors, such that the repartitioning satisfies at least one of a soft capacity constraint or a hard capacity constraint. The dynamic repartitioning may be based on at least one optimization algorithm.
    Type: Application
    Filed: October 1, 2021
    Publication date: March 31, 2022
    Inventors: Seyed Amin HEJAZI, Shawn Patrick STAPLETON
  • Patent number: 11277172
    Abstract: A system for transporting data in a Distributed Antenna System (DAS) includes at least one Digital Access Unit (DAU) and a plurality of Digital Remote Units (DRUs) coupled to the at least one DAU. The plurality of DRUs are operable to transport signals between the plurality of DRUs and the at least one DAU. The at least one DAU includes: a data transport coder comprising: a framer, an encoder, a scrambler, and a serializer and a data transport decoder comprising: a deserializer, a decoder, a descrambler, a frame synchronizer, and a deframer.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 15, 2022
    Assignee: DALI WIRELESS, INC.
    Inventors: Qianqi Zhuang, Shawn Patrick Stapleton
  • Patent number: 11245429
    Abstract: A method of operating a communications system includes receiving a signal at a digital predistorter (DPD), introducing predistortion to the signal using the DPD, and converting the predistorted signal to an analog signal using a digital-to-analog converter having a first bandwidth. The method also includes amplifying the analog signal, sampling the amplified signal using an analog-to-digital converter having a second bandwidth less than the first bandwidth, and extracting coefficients of the DPD from the sampled signal.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: February 8, 2022
    Inventors: Wan-Jong Kim, Shawn Patrick Stapleton
  • Patent number: 11227405
    Abstract: Methods and apparatus for determining poses of objects acquire plural images of the objects from different points of view. The images may be obtained by plural cameras arranged in a planar array. Each image may be processed to identify features such as contours of objects. The images may be projected onto different depth planes to yield depth plane images. The depth plane images for each depth plane may be compared to identify features lying in the depth plane. A pattern matching algorithm may be performed on the features lying in the depth plane to determine the poses of one or more of the objects. The described apparatus and methods may be applied in bin-picking and other applications.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: January 18, 2022
    Assignee: APERA AI INC.
    Inventors: Armin Khatoonabadi, Mehdi Patrick Stapleton
  • Publication number: 20220007094
    Abstract: A system for routing signals in a Distributed Antenna System (DAS) includes one or more local Digital Access Units (DAUs) located at a local location and one or more remote DAUs located at one or more remote locations. Each of the one or more local DAUs includes an optical port coupled to an upstream unit. The upstream unit includes at least one of a repeater, a baseband unit, a Base Transceiver Station (BTS), or a DAU. The one or more remote DAUs are coupled to the one or more local DAUs via one or more optical cables. A distance between the local location and each of the one or more remote locations is greater than two kilometers.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 6, 2022
    Inventors: Shawn Patrick STAPLETON, Sasa TRAJKOVIC
  • Publication number: 20220007263
    Abstract: An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing modulation technique such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. The present invention is based on the method of piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Inventors: Wan-Jong KIM, Kyoung Joon CHO, Jong Heon KIM, Shawn Patrick STAPLETON
  • Publication number: 20210409119
    Abstract: A method for operating a Distributed Antenna System (DAS) includes providing a plurality of Digital Remote Units (DRUs), each configured to send and receive wireless radio signals and providing a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the plurality of DRUs via optical signals and each being coupled to at least one sector of a base station. The method also includes providing a plurality of sensors operable to detect activity at each of the plurality of DRUs, turning off a DRU downlink signal at one of the plurality of DRUs in response to an output from one of the plurality of sensors, and turning on a DRU downlink signal at another of the plurality of DRUs in response to an output from another of the plurality of sensors.
    Type: Application
    Filed: July 2, 2021
    Publication date: December 30, 2021
    Inventors: Shawn Patrick STAPLETON, Sasa TRAJKOVIC, Wolfgang WEBER
  • Patent number: 11212751
    Abstract: A method of determining a carrier power in a communications system including a processor includes a) setting a power differential between a reference carrier and one or more carriers, b) measuring a number of satisfied users at the power differential, and c) measuring a capacity for the satisfied users at the power differential. The method also includes d) increasing the power differential by a predetermined amount and e) determining, using the processor, that the number of satisfied users at the increased power differential is greater than or equal to the number of satisfied users at the power differential. The method further includes f) repeating a)-c) and g) setting the carrier power at an iterated power level.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 28, 2021
    Assignee: DALI WIRELESS, INC.
    Inventors: Seyed Amin Hejazi, Shawn Patrick Stapleton
  • Publication number: 20210376871
    Abstract: A digital predistortion linearization method is provided for increasing the instantaneous or operational bandwidth for RF power amplifiers employed in wideband communication systems. Embodiments of the present invention provide a method of increasing DPD linearization bandwidth using a feedback filter integrated into existing digital platforms for multi-channel wideband wireless transmitters. An embodiment of the present invention utilizes a DPD feedback signal in conjunction with a low power band-pass filter in the DPD feedback path.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Inventors: Wan-Jong KIM, Shawn Patrick STAPLETON
  • Publication number: 20210345330
    Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 4, 2021
    Inventors: Paul LEMSON, Shawn Patrick STAPLETON, Sasa TRAJKOVIC, Albert S. LEE
  • Patent number: 11156719
    Abstract: A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a remote location. The plurality of remote DRUs are operable to receive signals from a plurality of local DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs and a GPS receiver at the remote location used in a feedback loop with the DRU to control the delays.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: October 26, 2021
    Inventor: Shawn Patrick Stapleton
  • Publication number: 20210329737
    Abstract: According to an embodiment of the present invention, a network is provided. The network may include a first base transceiver station (BTS). The first BTS may be operable to provide a first signal including a plurality of first carriers. The network may also include a second BTS operable to provide a second signal including a plurality of second carriers. The network may also include a set of one or more digital access units (DAUs), each of the one or more DAUs being coupled to at least one of the first BTS or the second BTS. A set of one or more digital remote units (DRUs) may be included in the network, each of the DRUs being coupled to one of the one or more DAUs and operable to broadcast the first signal or the second signal.
    Type: Application
    Filed: May 6, 2021
    Publication date: October 21, 2021
    Inventors: Albert S. LEE, Shawn Patrick STAPLETON, Paul LEMSON, Gary SPEDALIERE
  • Publication number: 20210329527
    Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present invention enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as Flexible Simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, a DAS in accordance with the present invention can increase the efficiency and traffic capacity of the operators' wireless network.
    Type: Application
    Filed: May 6, 2021
    Publication date: October 21, 2021
    Inventors: Shawn Patrick STAPLETON, Paul LEMSON, Bin LIN, Albert S. LEE
  • Patent number: 11140603
    Abstract: Methods and apparatuses are presented for balancing non-uniformly distributed network traffic in a wireless communications system having a plurality of digital remote units (DRUs). In some embodiments, a method comprises partitioning the plurality of DRUs into a plurality of DRU sectors, and dynamically repartitioning the plurality of DRU sectors depending on traffic conditions in at least one of the DRU sectors, such that the repartitioning satisfies at least one of a soft capacity constraint or a hard capacity constraint. The dynamic repartitioning may be based on at least one optimization algorithm.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: October 5, 2021
    Assignee: DALI WIRELESS, INC.
    Inventors: Seyed Amin Hejazi, Shawn Patrick Stapleton
  • Patent number: 11129076
    Abstract: One exemplary embodiment is directed to an efficient baseband predistortion linearization method. The exemplary method at least reduces the spectral regrowth and compensates for memory effects in wideband communication systems. The exemplary method uses an effective multiplexing modulation technique, such as wideband code division multiple access and orthogonal frequency division multiplexing. Another exemplary aspect utilizes a piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: September 21, 2021
    Assignee: DALI WIRELESS, INC.
    Inventors: Wan-Jong Kim, Kyoung Joon Cho, Jong Heon Kim, Shawn Patrick Stapleton
  • Patent number: 11095326
    Abstract: A digital predistortion linearization method is provided for increasing the instantaneous or operational bandwidth for RF power amplifiers employed in wideband communication systems. Embodiments of the present invention provide a method of increasing DPD linearization bandwidth using a feedback filter integrated into existing digital platforms for multi-channel wideband wireless transmitters. An embodiment of the present invention utilizes a DPD feedback signal in conjunction with a low power band-pass filter in the DPD feedback path.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: August 17, 2021
    Assignee: DALI SYSTEMS CO. LTD.
    Inventors: Wan-Jong Kim, Shawn Patrick Stapleton
  • Patent number: 11057691
    Abstract: A system for routing signals in a Distributed Antenna System (DAS) includes one or more local Digital Access Units (DAUs) located at a local location and one or more remote DAUs located at one or more remote locations. Each of the one or more local DAUs includes an optical port coupled to an upstream unit. The upstream unit includes at least one of a repeater, a baseband unit, a Base Transceiver Station (BTS), or a DAU. The one or more remote DAUs are coupled to the one or more local DAUs via one or more optical cables. A distance between the local location and each of the one or more remote locations is greater than two kilometers.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: July 6, 2021
    Assignee: DALI WIRELESS, INC.
    Inventors: Shawn Patrick Stapleton, Sasa Trajkovic
  • Patent number: 11057109
    Abstract: A method for operating a Distributed Antenna System (DAS) includes providing a plurality of Digital Remote Units (DRUs), each configured to send and receive wireless radio signals and providing a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the plurality of DRUs via optical signals and each being coupled to at least one sector of a base station. The method also includes providing a plurality of sensors operable to detect activity at each of the plurality of DRUs, turning off a DRU downlink signal at one of the plurality of DRUs in response to an output from one of the plurality of sensors, and turning on a DRU downlink signal at another of the plurality of DRUs in response to an output from another of the plurality of sensors.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: July 6, 2021
    Assignee: DALI SYSTEMS CO. LTD.
    Inventors: Shawn Patrick Stapleton, Sasa Trajkovic, Wolfgang Weber