公开(公告)号：US11860035B2

公开(公告)日：2024-01-02

申请号：US17646038

申请日：2021-12-27

申请人： VIAVI Solutions Inc.

发明人： Chang Meng Hsiung ,  Lan Sun ,  Michael Klimek

IPC分类号： G01J3/02 ,  G01J3/28

CPC分类号： G01J3/0275 ,  G01J2003/2833 ,  G01J2003/2836

摘要： In some implementations, a device may identify, based on spectroscopic data, a pseudo steady state end point indicating an end of a pseudo steady state associated with the blending process. The device may identify a reference block and a test block from the spectroscopic data based on the pseudo steady state end point. The device may generate a raw detection signal associated with the reference block and a raw detection signal associated with the test block. The device may generate a statistical detection signal based on the raw detection signal associated with the reference block and the raw detection signal associated with the test block. The device may determine whether the blending process has reached a steady state based on the statistical detection signal.

公开(公告)号：US20230417799A1

公开(公告)日：2023-12-28

申请号：US17850120

申请日：2022-06-27

申请人： VIAVI SOLUTIONS INC.

发明人： Chang-Hyun PARK ,  Bon-Jin KU ,  Seung-Gon HONG

IPC分类号： G01R13/02 ,  G01R23/167 ,  G01R31/00

CPC分类号： G01R13/0272 ,  G01R23/167 ,  G01R31/001

摘要： A multi-channel analog-digital converter (ADC) subsystem for test device such as a spectrum analyzer may include multiple multi-channel ADCs to receive down-converted signals and convert the received signals to digital output signals, a field programmable gate array (FPGA) to select one or more ADCs based on a frequency, a bandwidth, and/or a signal type of each received signal and a characteristic of each ADC, and an ADC sample clock to provide a clock signal to the selected ADCs. Characteristics of the ADCs may include a resolution, a signal-to-noise-and-distortion ratio (SINAD), an effective number of bits (ENOB), a signal-to-noise ratio (SNR), a total harmonic distortion (THD), a total harmonic distortion plus noise (THD+N), and/or a spurious free dynamic range (SFDR).

公开(公告)号：US11852531B2

公开(公告)日：2023-12-26

申请号：US17663256

申请日：2022-05-13

申请人： VIAVI Solutions Inc.

发明人： William D. Houck ,  Valton Smith

IPC分类号： G01J3/28 ,  G01J3/02 ,  G01S17/08 ,  G01J3/42

CPC分类号： G01J3/027 ,  G01J3/0229 ,  G01J3/42 ,  G01S17/08

摘要： A device may determine a time-of-flight measurement by performing a sample of a sensor based on light received via at least one first spectral filter, wherein the at least one first spectral filter is associated with a spectral range for a time-of-flight measurement; determine that a condition is satisfied with regard to the time-of-flight measurement, wherein the condition relates to an orientation or a position of the sensor or the sensor device relative to a measurement target; trigger a spectrometry measurement to be performed based on determining that the condition is satisfied with regard to the time-of-flight measurement; and perform, based on light received via at least one second spectral filter and by performing a sample of the sensor, the spectrometry measurement for the measurement target based on the condition being satisfied with regard to the time-of-flight measurement.

公开(公告)号：US11849202B2

公开(公告)日：2023-12-19

申请号：US18051179

申请日：2022-10-31

申请人： VIAVI Solutions Inc.

发明人： Kevin Cassady

IPC分类号： H04N23/54 ,  G01N21/15 ,  G02B6/38 ,  H04N23/55

CPC分类号： H04N23/54 ,  G01N21/15 ,  G02B6/3898 ,  H04N23/55 ,  G01N2021/157

摘要： An optical system may include an objective lens system having a primary optical axis and a relay lens system having a relay optical axis. The relay optical axis may have a first angular offset with respect to the primary optical axis. The objective lens system may be configured to provide light from a light source to the relay lens system and provide light from the relay lens system to an image sensor. The relay lens system may be configured to provide light from the objective lens system to an end face of an optical fiber, where the end face has a second angular offset with respect to a cross-sectional axis of the optical fiber. The relay lens system may provide light reflected from the end face to the objective lens system.

公开(公告)号：US20230389061A1

公开(公告)日：2023-11-30

申请号：US18232776

申请日：2023-08-10

申请人： Viavi Solutions, Inc.

发明人： Eric Walter Hakanson ,  Jeffrey Abramson Heath

IPC分类号： H04W72/541 ,  H04W72/0446 ,  H04W72/12 ,  H04L5/14

CPC分类号： H04W72/541 ,  H04W72/0446 ,  H04W72/12 ,  H04L5/14

摘要： 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.

公开(公告)号：US11821791B1

公开(公告)日：2023-11-21

申请号：US17850201

申请日：2022-06-27

申请人： VIAVI SOLUTIONS INC.

发明人： Driss Touahri ,  Christopher Russell Wagner ,  Luis Andre Neves Paiva Fernandes ,  Joshua Benjamin Julius Philipson

IPC分类号： G01J3/28 ,  G01J3/18 ,  G01J3/14 ,  G01J3/02 ,  G01J3/12

CPC分类号： G01J3/28 ,  G01J3/021 ,  G01J3/0208 ,  G01J3/14 ,  G01J3/18 ,  G01J2003/1208

摘要： A monochromator apparatus for an optical spectrum analyzer may include a diffraction grating, a rotatable oblique prism reflector element with a non-right-angle apex angle, and a mirror. An input optical beam received from an input component may be diffracted by the grating element and reflected by a reflector element, where the reflector element may include a rotatable oblique prism with an apex angle that is different from a right angle. A mirror may reflect the reflected diffracted optical beam back to the reflector element and the grating element. An output optical beam from the grating element may be provided via an output element to a detection element for high resolution optical measurement. The oblique prism reflector element may reduce or eliminate a Littrow ghost effect or secondary ghost effects caused by the grating element.

公开(公告)号：US11802210B2

公开(公告)日：2023-10-31

申请号：US17076470

申请日：2020-10-21

申请人： VIAVI SOLUTIONS INC.

发明人： Vladimir Raksha ,  Joe Garcia ,  Paul Kohlmann ,  Alberto Argoitia ,  Carole Thoraval ,  Robert Oberti

IPC分类号： C09C1/00 ,  C09C1/62 ,  C09C1/64 ,  C09C1/66 ,  C09B67/02 ,  B32B33/00 ,  B32B7/06 ,  C09B67/00

CPC分类号： C09B67/0097 ,  B32B7/06 ,  B32B33/00 ,  C09B67/0098 ,  C09C1/0015 ,  C09C1/0018 ,  C09C1/0048 ,  C09C1/0084 ,  C09C1/627 ,  C09C1/64 ,  C09C1/66 ,  B32B2307/4026 ,  B32B2307/416 ,  B32B2307/748 ,  C01P2004/61 ,  C01P2006/60 ,  C09C2200/24 ,  C09C2220/20

摘要： A thin film structure including a reflector layer; and a hybrid layer including an organic colored material and at least one of an organic filler and an inorganic filler; wherein a concentration of the at least one of an organic filler or an inorganic filler is in a range of from about 3 wt. % to about 30 wt. %. A method of making a thin film structure is also disclosed.

公开(公告)号：US20230341599A1

公开(公告)日：2023-10-26

申请号：US18341990

申请日：2023-06-27

申请人： VIAVI Solutions Inc.

发明人： William D. HOUCK

IPC分类号： G02B5/28 ,  G02B5/08

CPC分类号： G02B5/288 ,  G02B5/0875 ,  G02B5/0825

摘要： An optical filter includes a plurality of optical channels that each have a Fano resonance characteristic. A first optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) and reflect a second portion of the first set of light beams when the first set of light beams falls incident on a particular surface of the first optical channel. A second optical channel, of the plurality of optical channels, is configured to pass a first portion of a second set of light beams (that are associated with a second wavelength range) and reflect a second portion of the second set of light beams when the second set of light beams falls incident on a particular surface of the second optical channel.

公开(公告)号：US11796389B2

公开(公告)日：2023-10-24

申请号：US17587083

申请日：2022-01-28

申请人： VIAVI Solutions Inc.

发明人： William D. Houck ,  Valton Smith

IPC分类号： G01J3/02 ,  G06T7/11 ,  G01J3/28 ,  G01J3/36 ,  H04N5/345 ,  H04N25/443

CPC分类号： G01J3/0294 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/36 ,  G06T7/11 ,  H04N25/443 ,  G01J2003/2806 ,  G01J2003/2826 ,  G01J2003/2836 ,  G06T2207/20104

摘要： A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data.

公开(公告)号：US11789188B2

公开(公告)日：2023-10-17

申请号：US16946977

申请日：2020-07-14

申请人： VIAVI Solutions Inc.

发明人： William D. Houck ,  Daniel Meysing

IPC分类号： G02B5/28

CPC分类号： G02B5/281 ,  G02B5/284

摘要： An optical filter may comprise a first pair of mirrors, a second pair of mirrors, and a common spacer. The second pair of mirrors and the first pair of mirrors may reflect different portions of an electromagnetic spectrum. The common spacer may be positioned between the first pair of mirrors and between the second pair of mirrors.