812 patents
Utility
Optical Time-domain Reflectometer (Otdr) Event Detection and Light Power Level Measurement-based Fiber Optic Link Certification
18 Jan 24
In some examples, OTDR event detection and light power level measurement-based fiber optic link certification may include performing, at one end of a device under test (DUT) of a network, a light power level measurement.
Benoit MOREL
Filed: 28 Sep 23
Utility
High Speed Bidirectional Optical Time-domain Reflectometer (Otdr)-based Testing of Device Under Test
18 Jan 24
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.
Charlène ROUX, Julien Barrier
Filed: 28 Sep 23
Utility
Optical Device with a Folded Optical Path
18 Jan 24
In some implementations, an optical device may include an aperture, one or more optical elements, an optical filter, and an optical sensor.
William D. HOUCK, Steven SAXE
Filed: 21 Jul 23
Utility
Polarization Scrambler Using a Retardance Element
18 Jan 24
A polarization scrambler using a retardance element (RE) is disclosed.
Joshua PHILIPSON, Christopher Russell WAGNER, Luis Andre Neves Paiva FERNANDES
Filed: 26 Jul 23
Utility
Article Including Light Valves
18 Jan 24
An article, includes a layer including at least one color-rendering portion and at least one light valve; and a metal reflector portion, wherein the at least one light valve is positioned in the layer to provide reflection of incident light through the at least one light valve.
Kangning LIANG, Jaroslaw ZIEBA, Johannes P. SEYDEL
Filed: 8 Aug 23
Utility
High-speed hardware-based traffic analyzer integration with speed test control application
16 Jan 24
In some examples, high-speed hardware-based traffic analyzer integration with speed test control application may include receiving, from a speed test control application, speed test control instructions and data connection instructions to perform an upload and download high-speed test associated with network traffic for a network.
Hans-Joerg Wolf, Jyotikumar Menon, Anand Gajjala
Filed: 21 Apr 22
Utility
Sensor Window
11 Jan 24
A sensor window may include a substrate and a set of layers disposed onto the substrate.
Georg J. OCKENFUSS, Scott ROWLANDS, Markus BILGER
Filed: 21 Sep 23
Utility
Upstream Signal Leakage Detection In High-split Cable Network
11 Jan 24
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.
Daniel K. CHAPPELL, Adam D. GRAY, Brett EMSLEY, Loren R. EGGERT
Filed: 11 Jul 22
Utility
Mechanical transfer ferrule based optical switch
9 Jan 24
In some examples, a mechanical transfer ferrule based optical switch may include an optical fiber tube unit connectable to an end of an optical fiber.
Olivier Masselin, Alexandre Cebollada
Filed: 30 Dec 21
Utility
Optical interference filter
9 Jan 24
In some implementations, an optical interference filter includes a substrate; and a set of layers that are disposed on the substrate.
Jinhui Yang, Marius Grigonis, Georg J. Ockenfuss, Karen Denise Hendrix
Filed: 28 Sep 21
Utility
Frequency synthesizer using voltage-controlled oscillator (VCO) core of wideband synthesizer with integrated VCO
9 Jan 24
A frequency synthesizer employs a combination of a low divide ratio divider phase-locked loop (PLL) and a wide band, on-chip voltage-controlled oscillator (VCO).
Byung-Kuk An, Young-Joung Hong, Hyoung-Kyoun Park
Filed: 20 Dec 22
Utility
Test device for measuring synchronization errors between clusters in a cellular network
9 Jan 24
A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network.
Jong-Min Kim, Young-Kill Kim, Hyuck-In Kwon, Yoo-Chul Shin, Jae-Gab Lee
Filed: 15 Dec 21
Utility
Fano resonance based optical component of a security article
2 Jan 24
A security article includes an optical component that includes a plurality of optical channels with a Fano resonance characteristic.
William D. Houck
Filed: 12 May 21
Utility
Blending process end point detection
2 Jan 24
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.
Chang Meng Hsiung, Lan Sun, Michael Klimek
Filed: 27 Dec 21
Utility
Dual wavelength distributed temperature sensing with built-in fiber integrity monitoring
2 Jan 24
In some examples, a temperature distribution sensor may include a laser source to emit a laser beam that is tunable to a first wavelength and a second wavelength for injection into a device under test (DUT).
Andre Champavere
Filed: 30 Dec 21
Utility
Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing
2 Jan 24
According to examples, a fiber-optic testing source for testing a multi-fiber cable may include a laser source communicatively coupled to a plurality of optical fibers connected to a connector.
Joachim Lönne
Filed: 19 Apr 21
Utility
New Radio (NR) and long term evolution (LTE) signal concurrent testing
2 Jan 24
According to examples, NR and LTE signal concurrent testing may include ascertaining LTE synchronization data associated with an LTE signal, and ascertaining NR synchronization data associated with an NR signal.
Seung-Wan Seo, Hyuck In Kwon, Jae-Gab Lee, Jin-Ook Kim
Filed: 28 Oct 22
Utility
Mount for coupling an antenna alignment device to an antenna with non-planar external surface
2 Jan 24
An example mount may include a strap (or any other type of clamping mechanism) engaging with an external surface of an antenna.
Raleigh Benton Stelle, IV, Adam Woolsey
Filed: 23 Nov 21
Utility
Multi-channel Spectrum Analyzer with Multi-channel Analog-digital-converters (Adcs)
28 Dec 23
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.
Chang-Hyun PARK, Bon-Jin KU, Seung-Gon HONG
Filed: 27 Jun 22
Utility
Detection of Passive Intermodulation Distortion In Open Radio Access Network
28 Dec 23
A test device can be used with an Open Radio Access Network (O-RAN) fronthaul and to test an uplink communication channel for passive intermodulation distortion (PIM).
Wei CHEN
Filed: 6 Sep 23