公开(公告)号：US12028107B2

公开(公告)日：2024-07-02

申请号：US18374196

申请日：2023-09-28

申请人： VIAVI SOLUTIONS INC.

发明人： Charlène Roux ,  Julien Barrier

IPC分类号： H04B10/25 ,  H04B10/071 ,  H04B10/40 ,  H04B10/50 ,  H04B10/66

CPC分类号： H04B10/071 ,  H04B10/25 ,  H04B10/50 ,  H04B10/66 ,  H04B10/40

摘要： 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.

公开(公告)号：US12014528B2

公开(公告)日：2024-06-18

申请号：US17248212

申请日：2021-01-14

申请人： VIAVI Solutions Inc.

发明人： William D. Houck

IPC分类号： G06K9/00 ,  G02B5/00 ,  G02B5/02 ,  G06F3/14 ,  G06F18/214 ,  G06N5/04 ,  G06N20/00 ,  G06V10/147 ,  G06V40/16 ,  H04N23/57

CPC分类号： G06V10/147 ,  G02B5/003 ,  G02B5/0278 ,  G06F3/14 ,  G06F18/214 ,  G06N5/04 ,  G06N20/00 ,  G06V40/172 ,  H04N23/57

摘要： 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.

公开(公告)号：US12010717B2

公开(公告)日：2024-06-11

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 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/12

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

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：US20240167872A1

公开(公告)日：2024-05-23

申请号：US18429532

申请日：2024-02-01

申请人： VIAVI Solutions Inc.

发明人： Lan SUN ,  Chang Meng HSIUNG ,  Edward GOODING

IPC分类号： G01J3/28

CPC分类号： G01J3/28 ,  G01J2003/2836 ,  G01J2003/284 ,  G01J2003/2886

摘要： In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.

公开(公告)号：US20240125979A1

公开(公告)日：2024-04-18

申请号：US18046591

申请日：2022-10-14

申请人： VIAVI Solutions Inc.

发明人： Christophe BOURREAU ,  Tasso SALES

IPC分类号： G02B1/11 ,  G02B5/20

CPC分类号： G02B1/11 ,  G02B5/20 ,  G02B5/003

摘要： In some implementations, an optical element comprises a glass substrate, a dark mirror coating disposed on a first surface of the glass substrate, and a lens disposed on a second surface of the glass substrate. An aperture is formed in the dark mirror coating, and the aperture is aligned with the lens. The optical element is a monolithic optical element.

公开(公告)号：US11956575B2

公开(公告)日：2024-04-09

申请号：US18350355

申请日：2023-07-11

申请人： Viavi Solutions Inc.

发明人： David Hering ,  Karl Oberlin ,  Koji Okamoto

IPC分类号： H04B10/079 ,  H04Q11/00 ,  H04L49/356

CPC分类号： H04Q11/0062 ,  H04B10/0791 ,  H04B10/0795 ,  H04L49/357 ,  H04Q2011/0083

摘要： Mapping of ports to other network components is generated by physically bending a fiber optic cable and then determining which optical network terminals experience a signal power loss (or receive attenuated signals) based on the bending. The physical bending can be done using a bending tool and the optical network terminals that experience the signal power loss can be identified using a back-end database operation. Generally, the correspondence between the physical bending and the power loss at the downstream components and or upstream components of the network is used to create the mapping of the ports at the splitter level.

公开(公告)号：US11949991B2

公开(公告)日：2024-04-02

申请号：US17443194

申请日：2021-07-22

申请人： VIAVI Solutions Inc.

发明人： Steven Saxe ,  William D. Houck

IPC分类号： H04N23/698 ,  G01N21/31 ,  G02B5/20 ,  G03B11/00 ,  G06T7/00 ,  G06T7/30 ,  H04N5/265 ,  H04N23/55

CPC分类号： H04N23/698 ,  G01N21/314 ,  G02B5/201 ,  G02B5/208 ,  G03B11/00 ,  G06T7/30 ,  G06T7/97 ,  H04N5/265 ,  H04N23/55 ,  G01N2021/3155 ,  G01N2201/063 ,  G06T2207/10036 ,  G06T2207/10048 ,  G06T2207/20212

摘要： An image capture device may include a first spectral filter and a second spectral filter arranged so that a panoramic image capture operation captures light filtered by the first spectral filter and light filtered by the second spectral filter in a same region of a combined image and one or more processors to: capture a plurality of images based on the panoramic image capture operation; extract first information and second information from the plurality of images, wherein the first information is associated with the first spectral filter and the second information is associated with the second spectral filter; identify an association between the first information and the second information based on a feature captured in the plurality of images via the first spectral filter and the second spectral filter; and store or provide information based on the association between the first information and the second information.

公开(公告)号：US20240105874A1

公开(公告)日：2024-03-28

申请号：US18355586

申请日：2023-07-20

申请人： VIAVI SOLUTIONS INC.

发明人： Michael VERDUN ,  Pierrick JACQUY

IPC分类号： H01L31/107 ,  H01L31/024

CPC分类号： H01L31/107 ,  H01L31/024

摘要： In some examples, a photodiode module may include a photodiode chip, a submount located adjacent to the photodiode chip, and a heating element to heat the photodiode chip. By increasing the temperature of the photodiode chip through use of the heating element, the cutoff wavelength of the photodiode chip may be increased, which may also increase the quantum efficiency and the recovery time of the photodiode chip.

公开(公告)号：US20240077758A1

公开(公告)日：2024-03-07

申请号：US18352709

申请日：2023-07-14

申请人： VIAVI Solutions inc.

发明人： Linda LINGG

IPC分类号： G02F1/01

CPC分类号： G02F1/0147 ,  G02F2203/02

摘要： In some implementations, a component includes a substrate, a base coating disposed on the substrate, and a temperature-active coating disposed on the base coating. The temperature-active coating is configured to undergo a phase change when the component is subject to an ambient temperature that is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, which is greater than the first temperature threshold. The substrate and the base coating are configured to not undergo respective phase changes when the component is subject to an ambient temperature that is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold. The base coating may include one or more reflective structures.

公开(公告)号：US20240074669A1

公开(公告)日：2024-03-07

申请号：US18507273

申请日：2023-11-13

申请人： VIAVI Solutions INC.

发明人： Chang Meng HSIUNG ,  Lan SUN ,  Marc K. VON GUNTEN

IPC分类号： A61B5/024

CPC分类号： A61B5/02416 ,  A61B5/681

摘要： A device may determine end-of-phase information for a plurality of wavelength channels of photoplethysmography (PPG) data. The device may calculate a set of baseline correction points for each wavelength channel of the plurality of wavelength channels. The set of baseline correction points may be calculated based on end-of-phase information for a wavelength channel of the plurality of wavelength channels and PPG data associated with the wavelength channel. The device may perform a baseline correction for each wavelength channel of the plurality of wavelength channels. A baseline correction may be performed for the wavelength channel based on the set of baseline correction points associated with the wavelength channel and the PPG data associated with the wavelength channel. The device may generate a baseline corrected heartbeat profile using a principal component analysis of a result of baseline correcting each wavelength channel of the plurality of wavelength channels.