Patents by Inventor John Sabat

John Sabat 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).

  • Patent number: 8855036
    Abstract: A digital distributed antenna system (DDAS) that regains the capability to perform simulcast to multiple simulcast groups while using a base station's direct digital output is provided. The User Plane data is adapted for simulcast and also for eliminating time delay ambiguities across multiple simulcast digital radios. In addition, the Control and Management Plane is aggregated across multiple remote units to allow a non-modified donor digital base station to control simulcast groups. The result is a low cost digital DAS that can efficiently distribute the capacity of a digital base station to solve coverage and capacity requirements in a manner similar to that now accomplished using a traditional base station with RF in/out.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 7, 2014
    Assignee: Powerwave Technologies S.a.r.l.
    Inventors: John Sabat, David Porte
  • Patent number: 8165100
    Abstract: A Time Division Duplexed (TDD) digital distributed antenna system (DDAS) that performs simulcast distribution to multiple simulcast groups while using TDD time advanced burst to negate the data rate reducing effects of transport delays. The User Plane data is adapted for eliminating time delay ambiguities across multiple simulcast digital radios. In addition, the Control and Management Plane is aggregated across multiple remote units to allow a non-modified donor digital base station to control simulcast groups.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: April 24, 2012
    Assignee: Powerwave Technologies, Inc.
    Inventors: John Sabat, David Porte
  • Patent number: 8116254
    Abstract: An over the air repeater for enhancing wireless communication is provided. The repeater employs a system and method by which strong signals can be prevented from exceeding the repeater's uplink output limits while still providing full operational gain to any concurrently amplified weak signals, while adapting to time slot variations and optionally to frequency hopping variations. Power measurements are performed on each channel with resultant gain changes being performed on delayed versions of those same signals. Digital delay buffers are used to provide adequate processing time to make an accurate determination of the uplink signal levels of each RF carrier. The repeater alternatively monitors the downlink path from the donor base station to determine the frequencies to be processed on the uplink communication.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: February 14, 2012
    Assignee: Powerwave Technologies, Inc.
    Inventors: John Sabat, Jeffrey Millar
  • Publication number: 20090196215
    Abstract: An over the air repeater for enhancing wireless communication is provided. The repeater employs a system and method by which strong signals can be prevented from exceeding the repeater's uplink output limits while still providing full operational gain to any concurrently amplified weak signals, while adapting to time slot variations and optionally to frequency hopping variations. Power measurements are performed on each channel with resultant gain changes being performed on delayed versions of those same signals. Digital delay buffers are used to provide adequate processing time to make an accurate determination of the uplink signal levels of each RF carrier. The repeater alternatively monitors the downlink path from the donor base station to determine the frequencies to be processed on the uplink communication.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Inventors: John Sabat, Jeffrey Millar
  • Publication number: 20090180407
    Abstract: A Time Division Duplexed (TDD) digital distributed antenna system (DDAS) that performs simulcast distribution to multiple simulcast groups while using TDD time advanced burst to negate the data rate reducing effects of transport delays. The User Plane data is adapted for eliminating time delay ambiguities across multiple simulcast digital radios. In addition, the Control and Management Plane is aggregated across multiple remote units to allow a non-modified donor digital base station to control simulcast groups.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 16, 2009
    Inventors: John Sabat, David Porte
  • Publication number: 20090180426
    Abstract: A digital distributed antenna system (DDAS) that regains the capability to perform simulcast to multiple simulcast groups while using a base station's direct digital output is provided. The User Plane data is adapted for simulcast and also for eliminating time delay ambiguities across multiple simulcast digital radios. In addition, the Control and Management Plane is aggregated across multiple remote units to allow a non-modified donor digital base station to control simulcast groups. The result is a low cost digital DAS that can efficiently distribute the capacity of a digital base station to solve coverage and capacity requirements in a manner similar to that now accomplished using a traditional base station with RF in/out.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 16, 2009
    Inventors: John Sabat, David Porte
  • Publication number: 20080132273
    Abstract: An architecture for providing operations and maintenance functionality in an open access wireless signal distribution system. The open access system makes use of a common, shared, distributed radio frequency distribution network and associated network entities that enable a system operator to offer access to wireless infrastructure that maybe shared among multiple wireless service providers (WSPs). The WSPs, or tenants of the operators, may obtain access in a tenant lease-space model. The open access system provides the ability for multiple tenants in a given community to share wireless equipment such as remotely located antenna sites, regardless of their specific requirements for radio frequency (RF) air interface signal protocols and/or management messaging formats. The present invention is directed to an open access Network Management System (NMS) that provides multiple tenants with an appropriate level of access and control over the system elements that carry their signaling.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 5, 2008
    Applicant: ADC WIRELESS SOLUTIONS LLC
    Inventors: John Sabat, Jeffrey R. Millar
  • Publication number: 20080074289
    Abstract: A system including a master controller, a plurality of wireless nodes dispersed in a geographic area and a plurality of traffic signal lights dispersed in the geographic area. The traffic signal lights are communicatively coupled to the master controller via the plurality of wireless nodes. Each wireless node in the plurality of wireless nodes is associated with a distinct Internet protocol address and a wireless communication link provides Internet protocol based communication between the plurality of wireless nodes and the master controller. The plurality of wireless nodes receives control data packets for the communicatively coupled traffic signal lights from the master controller via the wireless communication link. The control data packets comprise the distinct Internet protocol address and operational instructions for at least one traffic signal light communicatively coupled to the wireless node and each traffic signal light is responsive to the operational instructions in the control data packets.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 27, 2008
    Applicant: ADC Telecommunications, Inc.
    Inventors: David D. Sauder, John Sabat
  • Patent number: 7251223
    Abstract: A communication system and methodology for providing a signal of interest to at least one movable platform, for possible use by passengers associated with the movable platform, from an information source, where the movable platform is not within a signal coverage area of the information source. The method includes transmitting an information signal with a transmitter located at the information source, receiving the information with a first transmitter/receiver unit located on a first movable platform within the signal coverage of the information source, and re-transmitting the information signal with the transmitter/receiver unit to a receiver located on a second movable platform that is not within the signal coverage area of the information source. The method may further include repeating the steps of receiving and re-transmitting the information signal with at least one additional transmitter/receiver unit, to provide the information signal between the first movable platform and the second movable platform.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 31, 2007
    Assignee: AeroSat Corporation
    Inventors: Michael J. Barrett, Richard B. Anderson, Richard Clymer, John Sabat
  • Publication number: 20050243785
    Abstract: A open access signal distribution system in which a variety of wireless voice, data and other services and applications are supported. The open access systems makes use of a distributed Radio Frequency (RF) distribution network and associated network entities that enable the system operator to employ a wireless infrastructure network that may be easily shared among multiple wireless service providers in a given community. The open access system provides the ability for such operators and service providers to share the infrastructure regardless of the specific RF air interface or other signal formatting and/or managing messaging formats that such operators choose to deploy.
    Type: Application
    Filed: April 5, 2005
    Publication date: November 3, 2005
    Applicant: OpenCell Corporation
    Inventors: John Sabat, Peter Yelle
  • Publication number: 20050018655
    Abstract: An architecture is provided for coupling wireless local area network (WLAN) signals between an internetworking device and a remotely located access point using a transport network. The access point is coupled to the transport network for communicating with the internetworking device. The access point includes a wireless local area network (WLAN) access point and an access point remote converter. The WLAN access point receives wireless local area network signals from wireless computing equipment and converts such signals to local area network compatible signals. The access point remote converter receives the local area network compatible signals from the WLAN access point and converts the signals to transport modulated format signals suitable for transmission over the transport network. The transport network also provides a power signal to power at least some components of the access point.
    Type: Application
    Filed: March 22, 2004
    Publication date: January 27, 2005
    Applicant: OpenCell, Inc.
    Inventors: Charles Bianchi, Ken Greenwood, John Sabat
  • Publication number: 20050018630
    Abstract: A simple and low cost architecture for a distribution network is provided for coupling wireless local area network (“wireless LAN”) signals between geographically distributed access points and centrally located internetworking devices. The distribution network eliminates complexities involved with the deployment of such systems in the past, which have typically required the computer network-compatible wiring to be extended to each access point directly from an internetworking device such as a repeater, bridge, router, or gateway. The distribution network makes it economically efficient to deploy wireless local area networking equipment in locations where wired network infrastructure is not readily available.
    Type: Application
    Filed: June 16, 2004
    Publication date: January 27, 2005
    Applicant: OpenCell Corp.
    Inventors: Charles Bianchi, Ken Greenwood, John Sabat
  • Publication number: 20040057393
    Abstract: A simple and low cost architecture for coupling wireless metropolitan area network and mobile broadband wireless network signals between geographically distributed access points and centrally located internetworking devices. A cable access point (CAP) is associated with each respective microcell. Each CAP includes a remote bridge to convert such signals to a convenient transport format depending upon the available cabling. For example, if the available cabling is a cable television (CATV) plant, the transport signals are first converted to a T1/T3 format and up-converted to a carrier frequency suitable for the CATV plant. Alternatively, the transport signals may be converted to cable modem signals. If the available cabling is twisted pair telephone type wiring, the remote bridge converts the transport signals to a suitable Digital Subscriber Line (XDSL) format. The transport signals are collected at a central distribution or head end access point (HAP).
    Type: Application
    Filed: June 26, 2003
    Publication date: March 25, 2004
    Applicant: OpenCell Corporation
    Inventors: Charles H. Bianchi, Ken C. Greenwood, John Sabat
  • Publication number: 20030157943
    Abstract: At repeaters or at each individual unit of a distributed antenna system, an auxiliary pilot signal is transmitted in addition to a common base station pilot signal to mobile units. The auxiliary pilot signal is unique to each repeater and each individual unit of the distributed antenna system within a local propagation area. A mobile unit measures the auxiliary pilot signals received from the repeater or distributed antenna units in the same manner it measures those of any base station pilot signal. The location of the mobile unit can be determined using well-known triangulation techniques based on the auxiliary pilot signal measurements.
    Type: Application
    Filed: January 27, 2003
    Publication date: August 21, 2003
    Inventor: John Sabat
  • Publication number: 20020016170
    Abstract: A method and apparatus for providing wireless signal communications through multiple coverage areas that include narrow corridors along which much of the mobile traffic travels. The corridors are interconnected at junctions where vehicle traffic tends to slow down or stop. The invention in particular, involves a method whereby simulcast communication is used for signal communication among base station locations along the narrow corridors. In this simulcast mode, the system equipment uses the same radio frequency to provide wireless coverage in a sequence of related sites located along the corridor. Using simulcast channels, the need for handoff is reduced and or eliminated. At the junctions, the usual base transceiver station (BTS) arrangement may be provided whereby multiple radio channels are available and handoff processing occurs.
    Type: Application
    Filed: March 28, 2001
    Publication date: February 7, 2002
    Applicant: Transcept, Inc.
    Inventors: John Sabat, Peter Yelle
  • Publication number: 20010036163
    Abstract: A open access signal distribution system in which a variety of wireless voice, data and other services and applications are supported. The open access systems makes use of a distributed Radio Frequency (RF) distribution network and associated network entities that enable the system operator to employ a wireless infrastructure network that may be easily shared among multiple wireless service providers in a given community. The open access system provides the ability for such operators and service providers to share the infrastructure regardless of the specific RF air interface or other signal formatting and/or managing messaging formats that such operators choose to deploy.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 1, 2001
    Applicant: Transcept OpenCell, Inc.
    Inventors: John Sabat, Peter Yelle
  • Publication number: 20010037395
    Abstract: An architecture for providing operations and maintenance functionality in an open access wireless signal distribution system. The open access system makes use of a common, shared, distributed radio frequency distribution network and associated network entities that enable a system operator to offer access to wireless infrastructure that maybe shared among multiple wireless service providers (WSPs). The WSPs, or tenants of the operators, may obtain access in a tenant lease-space model. The open access system provides the ability for multiple tenants in a given community to share wireless equipment such as remotely located antenna sites, regardless of their specific requirements for radio frequency (RF) air interface signal protocols and/or management messaging formats. The present invention is directed to an open access Network Management System (NMS) that provides multiple tenants with an appropriate level of access and control over the system elements that carry their signaling.
    Type: Application
    Filed: March 29, 2001
    Publication date: November 1, 2001
    Applicant: Transcept OpenCell, Inc.
    Inventors: John Sabat, Peter Yelle
  • Patent number: 5973647
    Abstract: A leaky waveguide antenna array that receives and/or transmits electromagnetic signals includes a plurality of radiation waveguides disposed in parallel to each other on a surface plane to form the antenna array. A feed waveguide is located below the surface plane and provides an electromagnetic signal to the plurality of radiation waveguides and/or receives a plurality of electromagnetic signals from the plurality of radiation waveguides and provides a composite electromagnetic signal at an output of the feed waveguide. Each of the plurality of radiation waveguides has a waveguide axis and includes a plurality of apertures arranged in a direction of the waveguide axis. The feed waveguide includes a first section of waveguide having a first end connected to an input/output port. The first section of waveguide has a height substantially the same as the height of each of the plurality of radiation waveguides and the first section of waveguide has a second end coupled to a first junction point.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 26, 1999
    Assignee: Aerosat Corporation
    Inventors: Michael J. Barrett, Richard B. Anderson, Richard Clymer, John Sabat