Patents by Inventor Isaac Shapira

Isaac Shapira 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: 10257828
    Abstract: Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) is disclosed. In one embodiment, a control circuit is provided and configured to control the TDD transmit mode of a DAS to control the allocation of time slots for uplink and downlink communications signal distribution in respective uplink path(s) and downlink path(s). The control circuit includes separate power detectors configured to detect either a transmit power level in a downlink path or a receive power level in an uplink path. If the transmit power detected in the downlink path is greater than receive power detected in the uplink path, the control circuit switches the TDD transmit mode to the downlink direction. In this manner, the control circuit does not have to control the TDD transmit mode based solely on detected power in the downlink path, where a directional coupler may leak uplink power in the downlink path.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 9, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Dror Ben-Shlomo, Isaac Shapira
  • Patent number: 10141959
    Abstract: Radio-frequency (RF) integrated circuit (RFIC) chip(s) allow for the integration of multiple electronic circuits on a chip to provide distributed antenna system functionalities. RFIC chips are employed in central unit and remote unit components, reducing component cost and size, increasing performance and reliability, while reducing power consumption. The components are also easier to manufacture. The RFIC chip(s) can be employed in distributed antenna systems and components that support RF communications services and/or digital data services.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 27, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Ofer Saban, Isaac Shapira
  • Publication number: 20180287704
    Abstract: Embodiments relate to providing simultaneous digital and analog services in optical fiber-based distributed radio frequency (RF) antenna systems (DASs), and related components and methods. A multiplex switch unit associated with a head-end unit of a DAS can be configured to receive a plurality of analog and digital downlink signals from one or more sources, such as a service matrix unit, and to assign each downlink signal to be transmitted to one or more remote units of the DAS. In one example, when two or more downlink signals are assigned to be transmitted to the same remote unit, a wave division multiplexer/demultiplexer associated with the multiplex switch unit can be configured to wave division multiplex the component downlink signals into a combined downlink signal for remote side transmission and to demultiplex received combined uplink signals into their component uplink signals for head-end side transmission.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: William Patrick Cune, Ofer Saban, Isaac Shapira
  • Publication number: 20180263035
    Abstract: Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) is disclosed. In one embodiment, a control circuit is provided and configured to control the TDD transmit mode of a DAS to control the allocation of time slots for uplink and downlink communications signal distribution in respective uplink path(s) and downlink path(s). The control circuit includes separate power detectors configured to detect either a transmit power level in a downlink path or a receive power level in an uplink path. If the transmit power detected in the downlink path is greater than receive power detected in the uplink path, the control circuit switches the TDD transmit mode to the downlink direction. In this manner, the control circuit does not have to control the TDD transmit mode based solely on detected power in the downlink path, where a directional coupler may leak uplink power in the downlink path.
    Type: Application
    Filed: May 9, 2018
    Publication date: September 13, 2018
    Inventors: Dror Ben-Shlomo, Isaac Shapira
  • Publication number: 20180234117
    Abstract: Radio-frequency (RF) integrated circuit (RFIC) chip(s) allow for the integration of multiple electronic circuits on a chip to provide distributed antenna system functionalities. RFIC chips are employed in central unit and remote unit components, reducing component cost and size, increasing performance and reliability, while reducing power consumption. The components are also easier to manufacture. The RFIC chip(s) can be employed in distributed antenna systems and components that support RF communications services and/or digital data services.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Inventors: Ofer Saban, Isaac Shapira
  • Patent number: 10014945
    Abstract: Embodiments relate to providing simultaneous digital and analog services in optical fiber-based distributed radio frequency (RF) antenna systems (DASs), and related components and methods. A multiplex switch unit associated with a head-end unit of a DAS can be configured to receive a plurality of analog and digital downlink signals from one or more sources, such as a service matrix unit, and to assign each downlink signal to be transmitted to one or more remote units of the DAS. In one example, when two or more downlink signals are assigned to be transmitted to the same remote unit, a wave division multiplexer/demultiplexer associated with the multiplex switch unit can be configured to wave division multiplex the component downlink signals into a combined downlink signal for remote side transmission and to demultiplex received combined uplink signals into their component uplink signals for head-end side transmission.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: July 3, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: William Patrick Cune, Ofer Saban, Isaac Shapira
  • Patent number: 9974074
    Abstract: Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs) is disclosed. In one embodiment, a control circuit is provided and configured to control the TDD transmit mode of a DAS to control the allocation of time slots for uplink and downlink communications signal distribution in respective uplink path(s) and downlink path(s). The control circuit includes separate power detectors configured to detect either a transmit power level in a downlink path or a receive power level in an uplink path. If the transmit power detected in the downlink path is greater than receive power detected in the uplink path, the control circuit switches the TDD transmit mode to the downlink direction. In this manner, the control circuit does not have to control the TDD transmit mode based solely on detected power in the downlink path, where a directional coupler may leak uplink power in the downlink path.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: May 15, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Dror Ben-Shlomo, Isaac Shapira
  • Patent number: 9948329
    Abstract: Radio-frequency (RF) integrated circuit (RFIC) chip(s) allow for the integration of multiple electronic circuits on a chip to provide distributed antenna system functionalities. RFIC chips are employed in central unit and remote unit components, reducing component cost and size, increasing performance and reliability, while reducing power consumption. The components are also easier to manufacture. The RFIC chip(s) can be employed in distributed antenna systems and components that support RF communications services and/or digital data services.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: April 17, 2018
    Assignee: Corning Optical Communications Wireless, Ltd
    Inventors: Ofer Saban, Isaac Shapira
  • Patent number: 9949209
    Abstract: Power management in a distributed communications system, such as a distributed antenna system (DAS), that includes determining user activity at remote units of the DAS. When user activity in one or more remote units falls below or above a specified threshold, power usage by the one or more remote units is reduced or increased accordingly. The power usage may reduced and/or increased by turning select remote units on or off, by increasing or reducing an operating voltage of one or more power amplifiers, and/or by turning select multiple-in, multiple-out (MIMO) front ends on or off. Power may be reduced such that wireless coverage within a specified area is maintained.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 17, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Nissim Atias, Isaac Shapira
  • Publication number: 20180083673
    Abstract: A method and system for supporting M1MO technologies which can require the transport of multiple spatial streams on a traditional Distributed Antenna System (DAS). According to the invention, at one end of the DAS, each spatial stream is shifted in frequency to a pre-assigned band (such as a band at a frequency lower than the native frequency) that does not overlap the band assigned to other spatial streams (or the band of any other services being carried by the DAS). Each of the spatial streams can be combined and transmitted as a combined signal over a common coaxial cable. At the other “end” of the DAS, the different streams are shifted back to their original (overlapping) frequencies but retain their individual “identities” by being radiated through physically separate antenna elements.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 22, 2018
    Inventors: Igor Berlin, Yair Oren, Rami Reuven, Ofer Saban, Isaac Shapira
  • Patent number: 9813229
    Abstract: A high frequency signal is down-converted into an intermediate frequency signal, transmitted over a limited bandwidth medium from a master unit to a remote unit and up-converted back into its original high frequency at the remote unit. The up-conversion is aided by reconstruction of a reference signal embedded at the master unit as a carrier for a management signal which is transmitted to the remote unit through the same limited bandwidth medium together with the intermediate frequency signal. The reference signal is reconstructed using a phase locked loop which includes a charge pump and is kept stable during intervals between bits and messages by a charge pump shutter.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 7, 2017
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Ofer Saban, Isaac Shapira, Yair Zeev Shapira
  • Publication number: 20170195966
    Abstract: Power management in a distributed communications system, such as a distributed antenna system (DAS), that includes determining user activity at remote units of the DAS. When user activity in one or more remote units falls below or above a specified threshold, power usage by the one or more remote units is reduced or increased accordingly. The power usage may reduced and/or increased by turning select remote units on or off, by increasing or reducing an operating voltage of one or more power amplifiers, and/or by turning select multiple-in, multiple-out (MIMO) front ends on or off. Power may be reduced such that wireless coverage within a specified area is maintained.
    Type: Application
    Filed: March 23, 2017
    Publication date: July 6, 2017
    Inventors: Nissim Atias, Isaac Shapira
  • Publication number: 20170163344
    Abstract: Embodiments relate to providing simultaneous digital and analog services in optical fiber-based distributed radio frequency (RF) antenna systems (DASs), and related components and methods. A multiplex switch unit associated with a head-end unit of a DAS can be configured to receive a plurality of analog and digital downlink signals from one or more sources, such as a service matrix unit, and to assign each downlink signal to be transmitted to one or more remote units of the DAS. In one example, when two or more downlink signals are assigned to be transmitted to the same remote unit, a wave division multiplexer/demultiplexer associated with the multiplex switch unit can be configured to wave division multiplex the component downlink signals into a combined downlink signal for remote side transmission and to demultiplex received combined uplink signals into their component uplink signals for head-end side transmission.
    Type: Application
    Filed: February 20, 2017
    Publication date: June 8, 2017
    Inventors: William Patrick Cune, Ofer Saban, Isaac Shapira
  • Patent number: 9642088
    Abstract: Power management in a distributed communications system, such as a distributed antenna system (DAS), that includes determining user activity at remote units of the DAS. When user activity in one or more remote units falls below or above a specified threshold, power usage by the one or more remote units is reduced or increased accordingly. The power usage may reduced and/or increased by turning select remote units on or off, by increasing or reducing an operating voltage of one or more power amplifiers, and/or by turning select multiple-in, multiple-out (MIMO) front ends on or off. Power may be reduced such that wireless coverage within a specified area is maintained.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 2, 2017
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Nissim Atias, Isaac Shapira
  • Patent number: 9609070
    Abstract: Methods and systems for indoor mobile unit positioning, for seamlessly toggling a mobile unit positioning between outdoor positioning and indoor positioning and for providing location based services or application generated by and external location server to the mobile unit while the mobile unit is indoors. The indoor mobile unit positioning includes mobile unit-based positioning with makes use of reception of access point signals by the mobile unit.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 28, 2017
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Isaac Shapira, Yair Zeev Shapira, Catherine Zatloukal
  • Patent number: 9602898
    Abstract: Embodiments relate to providing simultaneous digital and analog services in optical fiber-based distributed radio frequency (RF) antenna systems (DASs), and related components and methods. A multiplex switch unit associated with a head-end unit of a DAS can be configured to receive a plurality of analog and digital downlink signals from one or more sources, such as a service matrix unit, and to assign each downlink signal to be transmitted to one or more remote units of the DAS. In one example, when two or more downlink signals are assigned to be transmitted to the same remote unit, a wave division multiplexer/demultiplexer associated with the multiplex switch unit can be configured to wave division multiplex the component downlink signals into a combined downlink signal for remote side transmission and to demultiplex received combined uplink signals into their component uplink signals for head-end side transmission.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: March 21, 2017
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: William Patrick Cune, Ofer Saban, Isaac Shapira
  • Publication number: 20170034784
    Abstract: Power management in a distributed communications system, such as a distributed antenna system (DAS), that includes determining user activity at remote units of the DAS. When user activity in one or more remote units falls below or above a specified threshold, power usage by the one or more remote units is reduced or increased accordingly. The power usage may reduced and/or increased by turning select remote units on or off, by increasing or reducing an operating voltage of one or more power amplifiers, and/or by turning select multiple-in, multiple-out (MIMO) front ends on or off. Power may be reduced such that wireless coverage within a specified area is maintained.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 2, 2017
    Inventors: Nissim Atias, Isaac Shapira
  • Publication number: 20170026062
    Abstract: Radio-frequency (RF) integrated circuit (RFIC) chip(s) allow for the integration of multiple electronic circuits on a chip to provide distributed antenna system functionalities. RFIC chips are employed in central unit and remote unit components, reducing component cost and size, increasing performance and reliability, while reducing power consumption. The components are also easier to manufacture. The RFIC chip(s) can be employed in distributed antenna systems and components that support RF communications services and/or digital data services.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 26, 2017
    Inventors: Ofer Saban, Isaac Shapira
  • Patent number: 9549301
    Abstract: A method and system suitable for supporting various wireless services on a Distributed Antenna System (DAS). The DAS can provide wireless services including voice and data services using the same equipment. The DAS can include one or more active antenna units controlled by an access point, and includes control channels for transferring control and status information between the access point and the antenna. The control channels can be transferred over a separate cable, or transferred using one or more intermediate frequency signals transferred over existing cables. The control channels can be used to configure and control and receive status from the managed components of the DAS including active antennas, control the amplifiers used to process TDD signals, and control the switching of diversity antenna systems.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: January 17, 2017
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Igor Berlin, Dror Harel, Ofer Saban, Isaac Shapira
  • Patent number: 9497706
    Abstract: Power management in a distributed communications system, such as a distributed antenna system (DAS), that includes determining user activity at remote units of the DAS. When user activity in one or more remote units falls below or above a specified threshold, power usage by the one or more remote units is reduced or increased accordingly. The power usage may reduced and/or increased by turning select remote units on or off, by increasing or reducing an operating voltage of one or more power amplifiers, and/or by turning select multiple-in, multiple-out (MIMO) front ends on or off. Power may be reduced such that wireless coverage within a specified area is maintained.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 15, 2016
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Nissim Atias, Isaac Shapira