公开(公告)号：US10401258B2

公开(公告)日：2019-09-03

申请号：US15637329

申请日：2017-06-29

申请人： Viavi Solutions Inc.

发明人： Jay Brace ,  Kevin Cassady

IPC分类号： G02B6/38 ,  G01M11/00 ,  G02B21/00

摘要： A device for connecting to an optical cable having a set of optical fibers may include a microscope, an assembly to move the microscope in a continuous manner about an axis substantially parallel to a mating surface of the optical cable, and without moving the device, to bring one or more optical fibers, of the set of optical fibers, within a field of view of the microscope without moving the optical cable, and one or more processors. The device may receive an indication to perform a set of analyzes of the set of optical fibers of the optical cable. The device may perform the set of analyzes of the set of optical fibers by modifying a position of the microscope of the assembly of the device in a set of directions. The device may output a result of the set of analyzes for display.

公开(公告)号：US20190229981A1

公开(公告)日：2019-07-25

申请号：US15964890

申请日：2018-04-27

申请人： VIAVI SOLUTIONS INC.

发明人： Daniel Keith CHAPPELL ,  Loren Eggert

IPC分类号： H04L12/24

摘要： A test instrument connectable to a cable television (CATV) network to provide a high resolution time domain reflectometry (TDR) in a fault location measurement is disclosed. The test instrument may have a port connectable to a test point in the CATV network. The test instrument may also have a processing circuit to perform a calibration measurement and a fault location measurement by transmitting frequency-chirped probe pulses into a closed calibration circuit within the test instrument, and receiving return signals at an analog-digital converter in the test instrument. The processing circuit may also resample the calibration measurement and the fault location measurement at a high sampling rate, cross-correlate the fault location with the calibration measurement to generate a cross-correlation TDR waveform, and generate a new TDR waveform using a refinement processing technique to remove echoes from the cross-correlation TDR waveform. The cross-correlation TDR waveform generation steps may be repeated until the new TDR waveform meets a predetermined threshold. The processing circuit may then output new TDR waveform at an output.

公开(公告)号：US20190225006A1

公开(公告)日：2019-07-25

申请号：US16253036

申请日：2019-01-21

申请人： VIAVI SOLUTIONS INC.

发明人： Paul Thomas KOHLMANN ,  Cornelis Jan DELST

IPC分类号： B42D25/378 ,  B42D25/369 ,  B42D25/405 ,  G01J3/46 ,  C09C1/00

摘要： There is disclosed a security device, including a substrate; a first color-shifting pigment on a first region of the substrate; and a second pigment, including at least three dielectric layers, on a second region of the substrate; wherein the first color-shifting pigment and the second pigment color match at a first viewing angle. Methods of making and using the security device are also disclosed.

公开(公告)号：US20190149232A1

公开(公告)日：2019-05-16

申请号：US16246151

申请日：2019-01-11

申请人： VIAVI SOLUTIONS INC.

发明人： Fred L. HEISMANN

IPC分类号： H04B10/079

摘要： A method and apparatus for determining in-band OSNR in optical information signals, e.g. in polarization-multiplexed QPSK and higher-order M-ary QAM signals, are disclosed. A correlation measurement of the signal amplitude or power at two distinct optical frequencies of the signal may be used to determine the in-band optical noise in the signal. A measurement of the signal power may be used to determine the OSNR based on the determined in-band noise.

公开(公告)号：US20190143645A1

公开(公告)日：2019-05-16

申请号：US16224613

申请日：2018-12-18

申请人： VIAVI SOLUTIONS INC.

发明人： Johannes SEYDEL ,  Mark TEVIS ,  Kangning LIANG ,  Jeffrey James KUNA ,  Jaroslaw ZIEBA ,  Paul Thomas KOHLMANN

IPC分类号： B32B15/08 ,  C09C1/00 ,  B42D25/29 ,  C08K3/22 ,  H01L23/14 ,  C09D11/037

摘要： An article including a magnetic-containing layer having a first surface and a second surface opposite the first; a first reflector layer external to the first surface of the magnetic-containing layer; a second reflector layer external to the second surface of the magnetic-containing layer; a first selective light modulator layer external to the first reflector layer; a second selective light modulator layer external to the second reflector layer; a first absorber layer external to the first selective light modulator layer; and a second absorber layer external to the second selective light modulator layer; wherein at least one of the first and second selective light modulator layers comprises at least one of a curing agent, and at least one coating aid is disclosed. Methods of making the disclosed article are also disclosed.

公开(公告)号：US10278081B2

公开(公告)日：2019-04-30

申请号：US15515577

申请日：2015-09-30

申请人： Viavi Solutions Inc.

发明人： Nicolae G. Cotanis

IPC分类号： H04L1/00 ,  H04W24/02 ,  H04W28/16 ,  H04W88/08 ,  H04L12/24 ,  H04L12/801 ,  H04W24/10 ,  H04W28/02

摘要： In some embodiments, an apparatus includes a monitor module configured to monitor a set of performance indicators associated with a first network topology of a wireless network provider system. In the first network topology, a set of virtual baseband units services a set of remote radio heads. The apparatus includes a detector module configured to detect an operational condition of the wireless network provider system based on at least one value associated with the set of performance indicators at a first time. The apparatus further includes an optimization module configured to define, based on the operational condition, a second network topology for the set of virtual baseband units. The optimization module is further configured to send a signal to a virtual baseband unit pool manager to configure the wireless network provider system in the second network topology at a second time after the first time.

公开(公告)号：US10259254B2

公开(公告)日：2019-04-16

申请号：US13737836

申请日：2013-01-09

申请人： Viavi Solutions Inc.

发明人： Vladimir P. Raksha ,  John Hynes ,  Laurence Holden ,  Paul G. Coombs

IPC分类号： B42D25/369 ,  C09D7/61 ,  B42D25/342 ,  B44F1/10 ,  B41M3/14 ,  C09D11/00 ,  B41M7/00 ,  B44F1/02 ,  B05D3/00 ,  B05D5/06 ,  B42D25/29 ,  B42D25/00 ,  C09D5/29 ,  C09D5/36 ,  B42D25/41 ,  B42D25/378 ,  H01F41/02

摘要： An article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds the image. When light is incident upon the pigment flakes from a light source, light reflected from the frame pattern forms a dynamic frame which surrounds the image and appears to move as the substrate is tilted with respect to the light source. The image appears to be stationary when the dynamic frame appears to move.

公开(公告)号：US10232660B2

公开(公告)日：2019-03-19

申请号：US14797864

申请日：2015-07-13

申请人： VIAVI SOLUTIONS INC.

发明人： Vladimir P. Raksha ,  John Hynes ,  Laurence Holden ,  Paul G. Coombs

IPC分类号： B42D25/29 ,  B05D5/06 ,  B42D25/369 ,  B44F1/10 ,  B42D25/342 ,  B41M3/14 ,  C09D11/00 ,  B41M7/00 ,  B44F1/02 ,  B05D3/00 ,  B42D25/00 ,  C09D5/29 ,  C09D5/36 ,  B42D25/41 ,  B42D25/378 ,  H01F41/02 ,  C09D7/61

摘要： In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.

公开(公告)号：US20190075038A1

公开(公告)日：2019-03-07

申请号：US16107318

申请日：2018-08-21

申请人： VIAVI SOLUTIONS INC.

发明人： Michael D. GOTWALS ,  David W. JONES

IPC分类号： H04L12/26 ,  H04B17/00 ,  H04B17/309 ,  H04L29/12 ,  H04L1/24 ,  H04L25/03 ,  H04L27/36

摘要： An apparatus and method for testing an upstream path of a cable network are disclosed. The upstream path is tested by capturing and analyzing upstream data packets generated by a specific terminal device. A test instrument is connected at a node of the cable network. The test instrument establishes a communication session with the headend, informing the headend of an identifier of the device that will generate the test upstream data packet. The test upstream data packet is captured and analyzed at the headend, so that the results of the analysis can be communicated back to the test instrument. To speed up the packet capturing and filtering process, the upstream data packets can be pre-filtered based on packet duration and/or arrival time.

公开(公告)号：US10190910B2

公开(公告)日：2019-01-29

申请号：US15488948

申请日：2017-04-17

申请人： Viavi Solutions, Inc.

发明人： Curtis R. Hruska ,  Benjamin F. Catching ,  Paula Smith

IPC分类号： G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G02B5/28

摘要： An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.