Patents Examined by Agustin Bello
  • Patent number: 11372181
    Abstract: An optical module includes: a housing formed of a conductor that is insertable and removable with respect to an opening portion of an apparatus; a substrate arranged in an internal space of the housing; and a blocking unit that divides the internal space in which the substrate is arranged into two spaces. The blocking unit includes: a first conductor pattern formed on one surface of the substrate; a second conductor pattern formed on another surface of the substrate; a plurality of vias that penetrate through the substrate and connect the first conductor pattern and the second conductor pattern; a first auxiliary member formed of a conductor that comes into contact with the first conductor pattern and the housing; and a second auxiliary member formed of a conductor that comes into contact with the second conductor pattern and the housing.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: June 28, 2022
    Inventors: Takatoshi Yagisawa, Tsuyoshi Gamo
  • Patent number: 11372179
    Abstract: A connector includes a cage and a heat-radiation element. A top wall of the cage includes an opening, and first engaging structures extending from the top wall of the cage toward an outside of the cage at a periphery of the opening. The heat-radiation element is disposed on the cage corresponding to the opening, and first notches corresponding to the first engaging structures are disposed on side walls of the heat-radiation element. Each first engaging structure passes through the corresponding first notch to engage the heat-radiation element on the cage. The cage has a receiving cavity and supporting structure at a bottom of the receiving cavity. When a mating connector is inserted into the receiving cavity, a bottom of the mating connector is supported by the supporting structure, a top of the mating connector abuts against the heat-radiation element through the opening, and the heat-radiation element remains substantially stationary.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: June 28, 2022
    Inventors: Bai-Yu Duan, Xiao-Kai Wang, Xiao-Ping Wu
  • Patent number: 11372182
    Abstract: An optical fibres connector for an optoelectronic active implantable medical device (AIMD) for implantation in a living body is provided. The optical fibres connector includes a male component (M) coupled to a first set of optical fibres, a female component (F) coupled to a second set of optical fibres or optical elements, and a coupling component (C) for reversibly locking the male and female components in a coupled position. The optical fibres or optical elements are in perfect alignment. The coupling component includes a fixed element (40f) and a rotatable element (40r) all optical fibres (41f) and optical elements of the connector remaining static upon rotation of the rotatable element, reversibly locking the male and female components in the coupled position is achieved by rotating the rotatable element with respect to the fixed element.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 28, 2022
    Inventors: Carmen Godfraind, Pascal Doguet, Aurélie De Cock De Rameyen, Aurore Nieuwenhuys, Vincent Callegari
  • Patent number: 11362756
    Abstract: An optical network communication system utilizes a passive optical network including an optical hub having an optical line terminal, downstream transmitter, an upstream receiver, a processor, and a multiplexer. The upstream receiver includes a plurality of TWDMA upstream subreceivers. The system includes a power splitter for dividing a coherent optical signal from the optical hub into a plurality of downstream wavelength signals, a long fiber to carry the coherent optical signal between the optical hub and the power splitter, and a plurality of serving groups. Each serving group includes a plurality of optical network units configured to (i) receive at least one downstream wavelength signal, and (ii) transmit at least one upstream wavelength signal. The system includes a plurality of short fibers to carry the downstream and upstream wavelength signals between the power splitter and the optical network units, respectively. Each upstream subreceiver receives a respective upstream wavelength signal.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: June 14, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Zhensheng Jia, Luis Alberto Campos, Curtis Dean Knittle
  • Patent number: 11356240
    Abstract: A method of time aligning signals transmitted from a plurality of access nodes to a distributor is disclosed. The signals are formed according to a cyclic structure of a predetermined number of segments, including content segments and control segments, each segment having two markers. A controller of the distributor allocates observation time slots for each access node corresponding to control segments. The controller detects, from a portion of a signal received from an access node during a respective observation time slot, a position of a particular marker and a segment index then determines a temporal displacement of the signal accordingly. If the temporal displacement exceeds a predefined value, a distributing mechanism of the distributor halts signal transfer from the access node to all other access nodes and instructs the access node to adjust transmission time according to the temporal displacement.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: June 7, 2022
    Inventor: Maged E. Beshai
  • Patent number: 11356191
    Abstract: Embodiments of the invention describe apparatuses, optical systems, and methods for utilizing a dynamically reconfigurable optical transmitter. A laser array outputs a plurality of laser signals (which may further be modulated based on electrical signals), each of the plurality of laser signals having a wavelength, wherein the wavelength of each of the plurality of laser signals is tunable based on other electrical signals. An optical router receives the plurality of (modulated) laser signals at input ports and outputs the plurality of received (modulated) laser signals to one or more output ports based on the tuned wavelength of each of the plurality of received laser signals. This reconfigurable transmitter enables dynamic bandwidth allocation for multiple destinations via the tuning of the laser wavelengths.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: June 7, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Brian Robert Koch, Daniel Sparacin, Alexander W. Fang
  • Patent number: 11349566
    Abstract: Devices, computer-readable media and methods are disclosed for determining reachability for a wavelength connection in a telecommunication network. For example, a processor deployed in a telecommunication network may calculate a fiber loss on a link in the telecommunication network using optical power measurements and determine that a destination node of a wavelength connection is not reachable via a path that includes the link based upon the fiber loss of the link that is calculated. In one example, the determining is based upon a number of links in the path, an effective fiber loss for each link in the path, a penalty for nodes in the path, and an acceptable loss value. The processor may further perform a remedial action in response to determining that the destination node of the wavelength connection is not reachable via the path.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 31, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Sheryl Woodward, Kathleen Tse, Martin Birk, Angela Chiu, Balagangadhar Bathula
  • Patent number: 11340412
    Abstract: The relay board includes a first end face opposed to and fixed to the first surface of the conductive block, a second end face opposite to the first end face, and a top and a bottom defining thickness of the relay board. The top has a slope at a position closer to the first end face than the second end face. The slope inclines such that the thickness decreases in a direction from the first end face to the second end face. The conductor layers include a signal pattern on the top with part of the signal pattern disposed on the slope, and a first ground pattern extending from the bottom to each of the first end face and the second end face. The signal wire has one end bonded to the signal lead pin and another end bonded to the signal pattern on the slope.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 24, 2022
    Inventors: Daisuke Noguchi, Hiroshi Yamamoto
  • Patent number: 11342991
    Abstract: A light source (12) outputs a light (L1). A branching unit (13) branches the light (L1) output from the light source (12) into a first branched light (L2) and a local oscillation light (LO). A modulator (14) modulates the first branched light (L2) to output an optical signal (LS1). A receiver (15) causes the local oscillation light (LO) to interfere with an optical signal (LS2) to receive the optical signal (LS2). An EDFA (16) amplifies the optical signal (LS1) output from the modulator (14). An excitation light source (17) outputs an excitation light (Le) exciting the EDFA (16) to the EDFA (16). An optical attenuator (18) attenuates optical power of the optical signal (LS1) amplified by the EDFA (16). A control unit (11) controls attenuation of the optical signal (LS1) in the optical attenuator (18). The control unit (11) adjusts the attenuation of the optical signal (LS1) and adjusts an output of the excitation light (Le) from the excitation light source (17).
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: May 24, 2022
    Inventor: Isao Tomita
  • Patent number: 11327257
    Abstract: Apparatuses, systems, and methods are described that provide improved networking communication systems and associated adapters. An example networking communication adapter includes an adapter housing defining a first end and a second end opposite the first end. The first end is configured to engage an Octal Small Form Factor Pluggable (OSFP) connector, and the second end is configured to receive a Quad Small Form Factor Pluggable Double Density (QSFP-DD) transceiver therein. The networking communication adapter further includes an inner connector positioned within the adapter housing. In an operational configuration in which the first end engages the OSFP connector and the second end receives the QSFP-DD transceiver, the inner connector operably connects the QSFP-DD transceiver with the OSFP connector such that signals may pass therebetween.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 10, 2022
    Assignee: Mellanox Technologies, Ltd.
    Inventors: Ilya Margolin, Rony Setter, Andrey Ger, Yaniv Kazav, Tarek Hathoot
  • Patent number: 11330464
    Abstract: Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well-suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such as base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancelation on RF (Radio Frequency) signals.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 10, 2022
    Assignee: GenXComm, Inc.
    Inventors: Hardik Jain, Che-Chun Lin
  • Patent number: 11320609
    Abstract: The present invention relates to the technical field of optical communication, and provides a light emitting assembly comprising: an LD chip component, an optical wavelength division multiplexer, a first package housing and a second package housing; the first package housing is fixedly connected with the second package housing to form a first chamber for packaging the LD chip component and a second chamber for packaging the optical wavelength division multiplexer, the first chamber is located inside the first package housing, and the second chamber is located inside the second package housing. The present invention also provides an optical module comprising: a housing, a light receiving assembly and the light emitting assembly mentioned above, wherein the light receiving assembly and the light emitting assembly are both disposed on the housing.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: May 3, 2022
    Assignee: Linktel Technologies Co., LTD
    Inventors: Linke Li, Xuefeng Lin, Tianshu Wu, Xianwen Yang, Jian Zhang
  • Patent number: 11323176
    Abstract: A cell site test tool provides field technicians with resources to support multiple aspects of cell site testing. The cell site test tool includes multiple, integrated and removably connectable modules such as a base module, a user interface module, and a battery module. Additional modules include a CPRI module to provide Common Public Radio Interface testing, an OTDR module to provide dedicated Optical Time-Domain Reflectometer testing, a CAA module to provide Cable Antenna Analysis testing, a fiber inspection module to visually inspect optical fiber, and an SA/CPRI module to provide Radio Frequency over Common Public Radio Interface testing.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 3, 2022
    Inventors: Reza Vaez-Ghaemi, Craig Stephen Boledovic, Andrew Thomas Rayno, Waleed Wardak, Michael Jon Bangert, Jr., Kanwaljit Singh Rekhi
  • Patent number: 11314025
    Abstract: An optical transceiver that is hot-pluggable to an external device includes: an IC-TROSA including first to third internal fibers extending from a first surface of a package on a side opposite to the device in the first direction; a first substrate on which the IC-TROSA is mounted; a second substrate electrically connected to a light source and the first substrate and to which the light source is attached to generate reference light; a first sleeve provided on the second internal fiber; a second sleeve provided on the third internal fiber; and a fiber tray in which the substrates are mounted in an upper portion and the fibers are housed in a lower portion by being bent greater than a predetermined radius of curvature. The second substrate is arranged between the first and second sleeves and the first substrate in the first direction.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 26, 2022
    Inventor: Takashi Matsui
  • Patent number: 11309973
    Abstract: A passive optical network having an optical-signal monitor configured to monitor carrier-wavelength drifts during optical bursts transmitted between the optical line terminal and optical network units thereof. In an example embodiment, the optical-signal monitor uses heterodyne beating between two differently delayed portions of an optical burst to generate an estimate of the carrier-wavelength drift during that optical burst. The passive optical network may also include an electronic controller configured to use the estimates generated by the optical-signal monitor to make configuration changes at the optical network units and/or implement other control measures directed at reducing to an acceptable level the amounts of carrier-wavelength drift during the optical bursts and/or mitigating some adverse effects thereof.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 19, 2022
    Inventors: Vincent Houtsma, Doutje van Veen
  • Patent number: 11307367
    Abstract: A method of calibrating a collimating lens system includes transmitting, using an optical transmitter, a beam out of an optical fiber and through a collimating lens of the collimating lens system. The beam is reflected off a perfect flat mirror positioned at an output of the collimating lens and back towards the collimating lens, and received, via the collimating lens, at a power meter connected to the optical fiber. The method also includes adjusting a position of a tip of the optical fiber proximal to the collimating lens while tracking a power reading using the power meter, selecting a calibration position of the optical fiber corresponding to a highest power reading, and securing the optical fiber relative to the collimating lens using the calibration position.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: April 19, 2022
    Assignee: X Development LLC
    Inventors: Nam-hyong Kim, Andrei Kazmierski, Paul Epp
  • Patent number: 11300740
    Abstract: An optical module package may include a package substrate, an interposer on the package substrate, and a first semiconductor chip and a second semiconductor chip on the interposer. The interposer may include a silicon substrate having a first surface, which is adjacent to the package substrate, and a second surface, which is opposite to the first surface and adjacent to the first and second semiconductor chips, a penetration electrode penetrating the silicon substrate, a lower interconnection layer disposed on the first surface of the silicon substrate, and an optical waveguide, a first optical module, and a second optical module disposed in a lower portion of the lower interconnection layer. The first optical module may include a light source providing light into the optical waveguide, and the second optical module may include a photodetector receiving the light.
    Type: Grant
    Filed: March 27, 2021
    Date of Patent: April 12, 2022
    Assignee: OPROCESSOR INC
    Inventor: Sahnggi Park
  • Patent number: 11296812
    Abstract: In an example method, an edge transceiver receives a first message from a hub transceiver over a first communications channel of an optical communications network, including an indication of available network resources on the optical communications network. The edge transceiver transmits, over a second communications channel of the optical communications network, a second message to the hub transceiver, including an indication of a subset of the available network resources selected by the edge transceiver. The edge transceiver receives, from the hub transceiver, a third message acknowledging receipt of a selection by the edge transceiver and a fourth message confirming an assignment of the selected subset of the available network resources to the edge transceiver. The edge transceiver transmits, using the selected subset of the available network resources, data via the hub transceiver.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: April 5, 2022
    Assignee: Infinera Corporation
    Inventor: Steven J. Hand
  • Patent number: 11294129
    Abstract: In an optical module, optical signal output having satisfactory waveform and intensity can be obtained. A differential transmission line includes a first differential transmission line, which has a first characteristic impedance and is connected to a drive IC, a second differential transmission line, which has a second characteristic impedance and is connected to a light output element, the second characteristic impedance being smaller than the first characteristic impedance, and connecting portions configured to connect the first differential transmission line and the second differential transmission line in series with each other. A resistive element is arranged between the connecting portions. The resistive element has a resistance value that is set to a value with which an absolute value of a reflection coefficient for a signal traveling from the second differential transmission line side to the first differential transmission line side is 0.10 or less.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 5, 2022
    Inventor: Osamu Kagaya
  • Patent number: 11275223
    Abstract: An optical transceiver includes a housing, a heat dissipation module and an optical communication module. The heat dissipation module includes a first heat conductive component and a second heat conductive component accommodated in the housing. The first heat conductive component and the second heat conductive component are two independent components, and the first heat conductive component thermally contacts the second heat conductive component. The optical communication module is accommodated in the housing and thermally contacts the heat dissipation module.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: March 15, 2022
    Assignee: Prime World International Holdings Ltd.
    Inventors: Jhen Lin, Hsuan-Chen Shiu, Che-Shou Yeh