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公开(公告)号：US20210263293A1
公开(公告)日：2021-08-26
申请号：US16881338
申请日：2020-05-22
Applicant: COM DEV Ltd.
Inventor： Thomas Ducellier , Alexander Beaton , Sheng Hai Zheng
Abstract: An optical system includes a plurality of internal apertures, a plurality of external optical assemblies and a telescope assembly positioned between the plurality of internal apertures and the plurality of external optical assemblies. Each internal aperture is operable to receive a corresponding aperture-specific optical signal. Each external optical assembly corresponds to one of the internal apertures, and each external optical assembly is operable to direct the aperture-specific optical signal of the corresponding internal aperture in a corresponding external direction. The external direction for each external optical assembly is independently controllable and the telescope assembly defines a shared optical train arranged to direct the aperture-specific optical signals between each internal aperture and the corresponding external optical assembly.
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公开(公告)号：US20200373644A1
公开(公告)日：2020-11-26
申请号：US16671619
申请日：2019-11-01
Applicant: COM DEV Ltd.
Inventor： Rousslan Goulouev , Jianming Chang
Abstract: A bandpass filter has a plurality of resonant cavities. The plurality of resonant cavities are arranged into a sequence of adjacent resonant cavities. Each resonant cavity is configured to define the same fundamental resonant frequency. The filter includes a plurality of coupling irises, with one of the coupling irises positioned between each pair of adjacent resonant cavities. Each resonant cavity includes a plurality of cavity sections. Each resonant cavity includes a capacitive iris positioned coupling the cavity sections to one another. The frequency of secondary resonance modes varies amongst the resonant cavities in the plurality of resonant cavities.
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公开(公告)号：US20200049626A1
公开(公告)日：2020-02-13
申请号：US16100881
申请日：2018-08-10
Applicant: COM DEV LTD.
Inventor： Alan Scott
Abstract: A portable imaging apparatus and system. A sample processing device has a reaction chamber configured to receive a sample and react the sample with a fluorescent compound that emits a specified wavelength of light when excited by light within an excitation band. An illumination source can be positioned to illuminate the reaction chamber when the sample processing device is positioned for imaging. A light guide can be positioned to face the reaction chamber and transfer the emitted light to an imaging detector. The light guide has a filter that blocks the wavelength of light from the illumination source and passes the fluorescent emitted light. The light guide unit defines an angular light acceptance range and is configured to constrain angular spreading of light.
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公开(公告)号：US10205209B2
公开(公告)日：2019-02-12
申请号：US15343280
申请日：2016-11-04
Applicant: COM DEV Ltd.
Inventor： Li Zhu , Ming Yu , Raafat R. Mansour
Abstract: A triple-band bandpass filter with at least one cavity resonator. Each cavity resonator has the same three orthogonal resonances modes corresponding to three unique resonance frequencies. The three unique resonance frequencies define the passbands of the filter. The filter has an input probe coupled to an input cavity resonator. The filter has an output probe coupled to an output cavity resonator. The input and output probes are shaped to concurrently couple signal waveforms in each of the resonance modes. Coupling probes that can be used as input or output probes are also provided. An inter-cavity coupling operable to concurrently transmit signal waveforms in each of the resonance modes is also provided. The inter-cavity coupling can be used to transmit signals between adjacent cavity resonators in the filter.
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35.发明申请Titanium-containing metals with adherent coatings and methods for producing same 失效具有粘附涂层的含钛金属及其制造方法公开(公告)号：US20040173466A1
公开(公告)日：2004-09-09
申请号：US10376502
申请日：2003-03-03
Applicant: Com Dev Ltd.
Inventor： Florin Burca , John Darmon
IPC: C25D005/34
Abstract: A method for plating a titanium-containing metal, comprising the steps of: (a) surface treating the titanium-containing metal in a solution consisting essentially of an aqueous solvent and hydrochloric acid for a period of time sufficient to activate the surface of the titanium-containing metal; (b) plating the surface of the surface treated titanium-containing metal with a metallic coating in an electrolyte bath; and (c) non-oxidatively heat treating the struck titanium-containing metal for a period of time sufficient to cause diffusion bonding between the metallic coating and the titanium-containing metal. The present invention also provides parts made in accordance with the methods disclosed herein.
Abstract translation: 一种含钛金属电镀方法，包括以下步骤：（a）将基本上由水性溶剂和盐酸组成的溶液中的含钛金属表面处理足以活化钛表面的时间 含金属; （b）用金属涂层将表面处理的含钛金属的表面电镀在电解液浴中; 和（c）对所述含钛的金属进行非氧化热处理足以在所述金属涂层和所述含钛金属之间引起扩散接合的时间。 本发明还提供了根据本文公开的方法制备的部件。
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Patent Agency Ranking
公开(公告)号：EP4258572A1
公开(公告)日：2023-10-11
申请号：EP23162864.5
申请日：2023-03-20
Applicant: COM DEV Ltd.
Inventor： SCOTT, Alan , PODMORE, Hugh , ZHENG, Sheng Hai
IPC: H04B10/118 , H04B10/2581 , H04J14/04 , H04B10/112
Abstract: An optical communication system using a photonic lantern for fine point tracking is disclosed. The optical communication system may comprise a photonic lantern, a signal processing unit including one or more fiber splitters to sample a fraction of a received signal in each single mode fiber of the photonic lantern, and one or more intensity sensors positioned in one arm of each fiber splitter, and used for monitoring fiber-specific intensity data associated with each of the single-mode fibers. The system may further include a fine pointing assembly and a controller for controlling a driver of the fine pointing assembly.
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公开(公告)号：EP4092931A1
公开(公告)日：2022-11-23
申请号：EP22167422.9
申请日：2022-04-08
Applicant: COM DEV LTD.
Inventor： DUCELLIER, Thomas
IPC: H04B10/112 , H04B10/118
Abstract: An optical communication system that includes terminals that operate with different, widely separated wavelengths in which a terminal in the system may be configured to function in both a first operational mode and in a second operational mode. For example, a terminal according to the techniques of this disclosure may communicate with full duplex communication by transmitting a first optical wavelength and receiving a second optical wavelength while in the first operational mode. The same terminal may be reconfigured to transmit the second optical wavelength and receive the first optical wavelength while in the second operational mode. In some examples, the terminal may be located in a spacecraft, such as an orbiting satellite or other vehicle, and may communicate with other terminals such as airborne terminals, terminals located at ground station on the Earth's surface, or with terminals located in other spacecraft.
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公开(公告)号：EP3979404A1
公开(公告)日：2022-04-06
申请号：EP21197234.4
申请日：2021-09-16
Applicant: COM DEV LTD.
Inventor： GOULOUEV, Rousslan , MCLAREN, Colin
IPC: H01P1/202
Abstract: Various embodiments for a coaxial low-pass filter are described herein. Generally, the coaxial low-pass filter is operable to generate a stopband by a controlled generation of transmission zeroes within a stopband frequency range. The coaxial filter includes a plurality of cavity junctions, each of the plurality of cavity junctions operable to generate at least one corresponding cavity-specific transmission zero through a dual-mode coupling of a transverse electromagnetic and a transverse magnetic resonant mode, the at least one cavity-specific transmission zero being generated at at least one corresponding frequency located within the stopband frequency range, wherein for each cavity junction, the location of the cavity-specific frequency is adjusted by adjusting at least one property of the cavity junction, wherein a scattering of the locations of each of the cavity-specific transmission zeroes, generated by each of the plurality of cavity junctions, generates the stopband at the desired frequency range.
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公开(公告)号：EP1187247B1
公开(公告)日：2010-12-29
申请号：EP01120503.6
申请日：2001-08-28
Applicant: COM DEV LTD.
Inventor： Fitzpatrick, William , Yu, Ming , Smith, David , Sivadas, Apu
CPC classification number: H01P1/208
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公开(公告)号：EP1052721B1
公开(公告)日：2010-04-28
申请号：EP00109183.4
申请日：2000-05-08
Applicant: COM DEV LTD.
Inventor： Goulouev, Rousslan
IPC: H01P1/211
CPC classification number: H01P1/211
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