Patents Assigned to Viavi Solutions Inc.
  • Patent number: 12040847
    Abstract: According to examples, a system for measuring and analyzing data to generate recommendations associated with a digital subscription line (DSL). Data associated with a DSL is measured according to one or more performance counters. The data is analyzed with respect to one or more thresholds and an anomalous performance event is determined. Also, a recommendation with respect to an performance issue associated with the anomalous performance event is provided.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: July 16, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: John Janvier Rice, James Patrick Perdue
  • Patent number: 12041325
    Abstract: A device including an array of pixels and a filter wheel may capture a plurality of images by exposing the array of pixels. The device may spin, while capturing the plurality of images, the filter wheel, and the filter wheel may include filter segments. In some implementations, a portion of the filter wheel in front of the array of pixels includes two or more filter segments.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: July 16, 2024
    Assignee: VIAVI Solutions Inc.
    Inventors: Curtis R. Hruska, William D. Houck
  • Patent number: 12038616
    Abstract: A photonic system includes a light source and a photonic structure. The photonic structure includes an optical transmission structure and an optical absorption structure. The optical transmission structure is configured to transmit light associated with a first wavelength range. The optical absorption structure is configured to absorb light associated with a second wavelength range. The light source is configured to provide a light beam with a wavelength that is within the second wavelength range to the optical absorption structure. The optical absorption structure is configured to generate and provide heat to the optical transmission structure when the light beam falls incident on the optical absorption structure.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: July 16, 2024
    Assignee: VIAVI Solutions Inc.
    Inventor: William D. Houck
  • Patent number: 12038346
    Abstract: According to examples, a system for measuring polarization dependent loss (PDL) for a device-under-test (DUT) may include a tunable laser, a polarization element and a power meter. The tunable laser may emit an optical signal to sweep across an optical band at a constant rate. The polarization element may scramble polarizations states of the optical signal emitted from the tunable laser. The power meter may take power measurements associated with the optical signal emitted from the tunable laser, wherein the power measurements from the power meter are used to determine a maximum insertion loss (IL) and a minimum insertion loss (IL) associated with the device-under-test (DUT). An average insertion loss (IL) and a polarization dependent loss (PDL) for the device-under-test (DUT) may be calculated based on the maximum insertion loss (IL) and the minimum insertion loss (IL) associated with the device-under-test (DUT).
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: July 16, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Luis Andre Neves Paiva Fernandes, Robert Matthew Adams, Christopher Russell Wagner, Joshua Benjamin Julius Philipson, Eugene Chan
  • Patent number: 12040874
    Abstract: A device may receive sequential digital signals generated by a radio unit based on receipt of sequential radio frequency waveforms provided to ports of the radio unit by a signal generator and analyzer. The device may calculate uplink direction beamforming performance of the radio unit based on the sequential digital signals. The device may provide data identifying the uplink direction beamforming performance for display.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: July 16, 2024
    Assignee: VIAVI Solutions Inc.
    Inventors: Ian Wong, Ken Trudgeon, Patrick Charriere
  • Patent number: 12040559
    Abstract: An ultra-wideband mobile mount antenna with a capacitive ground structure-based matching structure. The antenna has a return loss better than 10 dB over an operating frequency range of 250 MHz to 1220 MHz.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: July 16, 2024
    Assignee: Viavi Solutions Inc.
    Inventors: Dexin Sun, Raleigh B. Stelle, IV
  • Publication number: 20240230965
    Abstract: A die including a substrate having a surface defined by paired oppositely-oriented edges; and an optical material, in a non-rectangular shape, and on the surface of the substrate; wherein the optical material does not extend an entire length of any one of the paired oppositely-oriented edges is disclosed, A wafer can including a plurality of the dies. Methods of making the wafer and the die are also disclosed.
    Type: Application
    Filed: October 24, 2022
    Publication date: July 11, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Joerg BUTH, Jaroslaw ZIEBA, Bradley John WARD, Tasso R.M. SALES
  • Publication number: 20240235631
    Abstract: An antenna alignment device may have a camera that takes a line-of-sight image. For an antenna alignment device directed to a boresight of an antenna, the line-of-sight image is the “view” from the antenna to the surrounding environment. An antenna radiation pattern, based on the antenna type, may be overlaid on the line-of-sight image. A technician and or other user can therefore observe the radiation pattern vis-à-vis the surrounding environment. Therefore, it can be determined during the initial alignment stage, whether the antenna alignment may have to be changed to account for structures and or other blockages in the surrounding environment rather than just relying antenna alignment based on an ideal model site. The overlaying also speeds up troubleshooting as it can be used to provide clear and specific alignment instructions prior to deploying crew to the antenna site.
    Type: Application
    Filed: October 20, 2022
    Publication date: July 11, 2024
    Applicant: Viavi Solutions Inc.
    Inventors: Scott PETTYGROVE, Jim NEUENS
  • Patent number: 12034619
    Abstract: A CMTS may instruct one or more cable modems to transmit an upstream test signal with a particular preamble (and or any other type of signature) in the upstream transmission bandwidth. The preamble may be within a significant band of the upstream transmission bandwidth. A leakage detection device may be brought in the vicinity of the cable network to listen for various signals. The leakage detection device may filter received signals to retain the portions thereof within a desired limited band and further filter the band-limited signals to reduce noise, e.g., removing the payload following the preamble. A correlation filter in the leakage detection device may compare the pattern in the band-limited filtered signal with a stored preamble. If there is a match, the leakage detection device may generate an indication that leakage is detected in the upstream transmission.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: July 9, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Daniel K. Chappell, Adam D. Gray, Brett Emsley, Loren R. Eggert
  • Patent number: 12031859
    Abstract: According to examples, an optical fiber-based sensing membrane may include at least one optical fiber, and a substrate. The at least one optical fiber may be integrated in the substrate. The substrate may include a thickness and a material property that are specified to ascertain, via the at least one optical fiber and for a device that is contiguously engaged with a surface of the substrate, includes the substrate embedded in the device, or includes the surface of the substrate at a predetermined distance from the device, a thermal and/or a mechanical property associated with the device, or a radiation level associated with a device environment.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: July 9, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Jeffery Stephen Graves, Vincent Lecoeuche, Andre Champavere
  • Publication number: 20240223274
    Abstract: According to examples, an optical fiber monitoring apparatus may include an optical time domain reflectometer (OTDR), and a 1×N optical splitter that is optically connected to the OTDR. For N being greater than one, the 1×N optical splitter may include N test port optical fiber outputs. Further, each test port optical fiber output may be optically connectable to an optical fiber to optically connect the optical fiber to the OTDR.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 4, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Michel SAGET, Sylvain DESPLAT
  • Publication number: 20240217141
    Abstract: A multi-layered article including a substrate; a release layer including polyvinyl alcohol and at least one cross-linking agent; and a first selective light modulator layer; wherein the release layer crosslinks and is water insoluble is disclosed. Also, disclosed is a multi-layered article including a substrate; a waterborne release layer; and a first selective light modulator layer including a cross-linking agent. Methods of making the multi-layered articles are also disclosed.
    Type: Application
    Filed: January 31, 2024
    Publication date: July 4, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Kangning LIANG, Alberto ARGOITIA, Jaroslaw ZIEBA, Johannes P. SEYDEL
  • Patent number: 12028107
    Abstract: In some examples, high speed bidirectional OTDR-based testing may include transmitting data from a first end of a device under test (DUT) towards an optical time-domain reflectometer (OTDR) that is operatively connected to a second opposite end of the DUT. Further data that is transmitted by the OTDR may be received from the second opposite end of the DUT towards the first end of the DUT. Based on an amplitude of the further data, a direction of receiving of the further data may be adjusted towards a first receiver or towards a second receiver.
    Type: Grant
    Filed: September 28, 2023
    Date of Patent: July 2, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Charlène Roux, Julien Barrier
  • Publication number: 20240198715
    Abstract: An assembly including a first magnet; a substrate positioned above the first magnet, and having a surface for receiving a composition including a plurality of magnetizable platelets; and a second magnet, positioned above the substrate is disclosed. The assembly can be used in a method of making an optical security element. The optical security element and the method of making the optical security element are also disclosed.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 20, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. RAKSHA, Cornelis Jan Delst
  • Publication number: 20240199885
    Abstract: A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composition including the pigment is also disclosed. A method of making the pigment, and a method of making a colorant composition are also disclosed.
    Type: Application
    Filed: January 17, 2024
    Publication date: June 20, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventor: Alberto ARGOITIA
  • Patent number: 12014528
    Abstract: An optical device includes an optical sensor, one or more diffusive optical elements disposed on a surface of a display screen and configured to diffuse and to distribute a first portion of light associated with a subject across an array of sensor elements of the optical sensor, and one or more processors. The display screen includes one or more transmissive components that allow the first portion of light to pass through the display screen via the surface of the display screen, and one or more blocking components that prevent a second portion of light associated with the subject from passing through the display screen. The one or more processors are configured to obtain, from the optical sensor, sensor data associated with the first portion of light, process the sensor data to determine an image of the subject, and perform one or more actions based on the image of the subject.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: June 18, 2024
    Assignee: VIAVI Solutions Inc.
    Inventor: William D. Houck
  • Publication number: 20240195497
    Abstract: According to examples, a channel checker optical time-domain reflectometer (OTDR) may include a laser source to emit a laser beam. An optical switch may be optically connected to the laser source to receive the laser beam and to selectively transmit the laser beam to a circulator that is optically connected to a device under test (DUT). A first coupler may be optically connected to a first photodiode and to the circulator. A second coupler may be optically connected to the first coupler, the optical switch, and a second photodiode.
    Type: Application
    Filed: February 26, 2024
    Publication date: June 13, 2024
    Applicant: VIAVI Solutions Inc.
    Inventor: Vincent LECOEUCHE
  • Patent number: 12010717
    Abstract: A method is disclosed for use in a frequency division duplex (FDD) wireless network including a base station (BS) and a user equipment controller (UE) communicating through a medium having an uplink communication channel supporting communications from the UE to the BS, and a downlink communication channel supporting communications from the BS to the UE. The method includes identifying an uplink frequency spectrum in the uplink communication channel affected by an interfering signal, and determining the uplink power level of the interfering signal and whether the interfering signal is caused by passive intermodulation distortion (PIM). In response to determining that that the interfering signal is caused by PIM, the method includes adjusting, based on the uplink frequency spectrum and the uplink power level of the interfering signal, one or more of a downlink power level of a downlink transmission signal and a downlink frequency range in the downlink communication channel.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: June 11, 2024
    Assignee: Viavi Solutions, Inc.
    Inventors: Eric Walter Hakanson, Jeffrey Abramson Heath
  • Patent number: 12009871
    Abstract: Disclosed are a test instrument and testing methods for audibly providing signal metrics (such as signal strength and/or signal quality) of fifth-generation network (5G) beams to assist installation of 5G Customer Premises Equipment (CPE) antenna at a premises. A test instrument may obtain signal metrics and provide audio output based on the signal metrics at various locations of the premises. The audio output may be transmitted to a headphone device worn by a user or a speaker. In this manner, the user may select an appropriate location on the premises at which to install the 5G CPE antenna via audible queues that are based on the measured signal metric at a given location. The test instrument may provide fine-tuning capabilities by also audibly providing directional information that indicates where the 5G CPE antenna should be pointed or moved to align the 5G CPE antenna to a 5G beam.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: June 11, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Scott Roy Pettygrove, Hans Joerg Wolf, Karthik Subramanian
  • Patent number: 12007631
    Abstract: A polarization scrambler using a retardance element (RE) is disclosed. The polarization scrambler may include an optical fiber input to transmit an optical signal, and a beam expander to receive and expand the optical signal to create an expanded optical signal. The polarization scrambler may include a retardance element (RE) to cause a polarization scrambling effect on the expanded optical signal and to create a scrambled expanded optical signal. The polarization scrambler may include a beam reducer to receive and reduce the scrambled expanded optical signal to create a scrambled optical signal. The polarization scrambler may include an optical fiber output to receive scrambled optical signal. The optical fiber output may transmit the scrambled optical signal to one or more downstream optical components.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: June 11, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Joshua Philipson, Christopher Russell Wagner, Luis Andre Neves Paiva Fernandes