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1207 条记录 (耗时 0.031 秒)

    Satellite signal propagation delay test device
    2.
    发明授权
    Satellite signal propagation delay test device 有权

    公开(公告)号：US12130368B2

    公开(公告)日：2024-10-29

    申请号：US17884412

    申请日：2022-08-09

    申请人： VIAVI SOLUTIONS INC.

    发明人： Joseph Gomez ,  David Royle

    IPC分类号： G01S19/23

    CPC分类号： G01S19/23

    摘要： A test device determines a Global Navigation Satellite System (GNSS) signal propagation delay in a GNSS signal distribution system (GSDS) for a radio access network. The test device includes a GNSS receiver and a clock. The GNSS receiver is connected at different times to a reference GSDS with a known signal propagation delay and to a device under test (DUT), including a second GSDS having an unknown signal propagation delay. One pulse per second (1PPS) signals are generated by the GNSS receiver and are compared to determine the unknown signal propagation delay of the DUT.

    PRECODER AND RESOURCE ALLOCATION FOR RATE-SPLITTING MULTIPLE ACCESS IN OVERLOADED NETWORKS
    3.
    发明公开
    PRECODER AND RESOURCE ALLOCATION FOR RATE-SPLITTING MULTIPLE ACCESS IN OVERLOADED NETWORKS 审中-公开

    公开(公告)号：US20240349125A1

    公开(公告)日：2024-10-17

    申请号：US18299498

    申请日：2023-04-12

    申请人： VIAVI SOLUTIONS Inc.

    发明人： Onur DIZDAR ,  Ata SATTARZADEH HASHEMI ,  Yi Xien YAP ,  Stephen WANG

    IPC分类号： H04W28/18 ,  H04L1/00

    CPC分类号： H04W28/18 ,  H04L1/0009

    摘要： A device may determine whether to utilize perfect channel state information at transmitter (CSIT) or imperfect CSIT, and may calculate, based on determining to utilize the perfect CSIT, a first power allocation, a first rate allocation, and a first precoder allocation for a private stream of a user device. The device may determine first parameters or second parameters for the first power allocation, the first rate allocation, and the first precoder allocation, and may generate a first transmit signal and a first data allocation based on the first power allocation, the first rate allocation, the first precoder allocation, and the first parameters or the second parameters. The device may provide the first transmit signal, with the first data allocation, to the user device via the private stream.

    FIBER OPTIC CABLE BENDING DEVICE FOR PASSIVE OPTICAL NETWORKS
    4.
    发明公开
    FIBER OPTIC CABLE BENDING DEVICE FOR PASSIVE OPTICAL NETWORKS 审中-公开

    公开(公告)号：US20240329326A1

    公开(公告)日：2024-10-03

    申请号：US18190564

    申请日：2023-03-27

    申请人： Viavi Solutions Inc.

    发明人： Karl OBERLIN

    IPC分类号： G02B6/36

    CPC分类号： G02B6/3636 ,  G02B6/3616

    摘要： Examples of a bending device to bend fiber optic cables to cause consistent signal attenuations. An example bending device may be a simple non-electronic structure with two pieces slidably attached to each other using a tensioning mechanism (e.g., a spring). The two pieces may define a curved groove with a predetermined radius of curvature. A technician may slide one piece against the tensioning pressure to expose the groove and insert the fiber optic cable. The curved groove bends the fiber optic cable, and the tensioning pressure maintains the bend. In one or more embodiments, one of the two pieces have a second groove defined thereon for bending a fiber optic cable of a different size.

    Orienting magnetic flakes within a binder layer
    5.
    发明授权
    Orienting magnetic flakes within a binder layer 有权

    公开(公告)号：US12103327B2

    公开(公告)日：2024-10-01

    申请号：US17819387

    申请日：2022-08-12

    申请人： VIAVI Solutions Inc.

    发明人： Matthew R. Witzman

    IPC分类号： B42D25/369 ,  B05D3/00 ,  B42D25/40

    CPC分类号： B42D25/369 ,  B05D3/207 ,  B42D25/40

    摘要： A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.

    Optical element and optical system
    8.
    发明授权
    Optical element and optical system 有权

    公开(公告)号：US12092836B2

    公开(公告)日：2024-09-17

    申请号：US16661620

    申请日：2019-10-23

    申请人： VIAVI SOLUTIONS INC.

    发明人： Tasso R. M. Sales

    IPC分类号： G02B27/09 ,  G02B5/02

    CPC分类号： G02B27/0927 ,  G02B5/0215 ,  G02B27/0916

    摘要： An optical element including a body of optical material; and a plurality of microstructures along a surface of the body, wherein each microstructure of the plurality of microstructures has a sag profile. An optical system can include a light source; and an optical element having a body of optical material and a plurality of microstructures along a surface of the body, wherein each microstructure of the plurality of microstructures generates a super-cosine intensity profile that provides an irradiance over a field of view. Methods of making and using the optical element and optical system are also disclosed.