Patents Examined by Erin Chiem
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Patent number: 9059578Abstract: A holding device for a cable or an assembly like a trunk or furcation adapter for use with a cable, comprising: a cradle part adapted to hold the cable or the assembly for use with a cable; and a cover part to be mounted to a supporting structure, especially to a wall of a distribution device; whereby said cradle part when combined with said cover part can be rotated with respect to said cover part.Type: GrantFiled: February 18, 2010Date of Patent: June 16, 2015Assignee: CCS Technology, Inc.Inventors: Bartlomiej Sokolowski, Przemyslaw Karolak, Grzegorz Sek
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Patent number: 9057853Abstract: An optoelectronic apparatus is described herein, including a transmitter, a receiver, and an optical waveguide, all of which are embedded in a PCB. The transmitter includes a laser generator and other circuits for generating electrical and optical signals, which are transmitted through the waveguide to the receiver. The receiver includes circuits and detectors for detecting and converting the optical signals to electrical signals. The circuit and optical components of the transmitter and receiver are integrated in 3D hybrid chip sets where the chip components are stacked in a 3D structure. Because all of the circuit and optical components are embedded in the PCB, the apparatus is made very compact and suitable for implementation in portable products.Type: GrantFiled: February 19, 2010Date of Patent: June 16, 2015Assignee: The Hong Kong University of Science and TechnologyInventors: Hon Shing Lau, Shi-Wei Lee, Matthew Ming Fai Yuen, Jingshen Wu, Chi Chuen Lo, Haibo Fan, Haibin Chen
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Patent number: 9052550Abstract: A thin film transistor liquid crystal display (TFT LCD), including a TFT array substrate, a color filter substrate and a post spacer disposed between the TFT array substrate and the color filter substrate. The TFT array substrate includes a gate line, a data line, and a TFT disposed in a pixel area defined by the gate line and the data line crossing with each other, and the TFT comprises a source/drain electrode. The post spacer is located in a region at least partially surrounded by the source/drain electrode, the data line and the gate line.Type: GrantFiled: November 29, 2007Date of Patent: June 9, 2015Assignee: Beijing BOE Optoelectronics Technology Co., LTDInventors: Jianing Cui, Chunping Long
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Patent number: 9052447Abstract: An optical de-MUX includes a sub-wavelength grating that magnifies an input optical signal. In particular, along a direction perpendicular to a propagation direction of the optical signal, the sub-wavelength grating has a spatially varying effective index of refraction that is larger at a center of the sub-wavelength grating than at an edge of the sub-wavelength grating. Moreover, the optical de-MUX includes an optical device that images and diffracts the optical signal using a reflective geometry, and which provides different diffraction orders to output ports. For example, the optical device may include an echelle grating.Type: GrantFiled: November 30, 2011Date of Patent: June 9, 2015Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: Ying L. Luo, Ashok V. Krishnamoorthy, Xuezhe Zheng, Guoliang Li
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Patent number: 9052244Abstract: Methods and apparatus enable monitoring conditions in a well-bore using multiple cane-based sensors. The apparatus includes an array of cane-based Bragg grating sensors located in a single conduit for use in the well-bore. For some embodiments, each sensor is located at a different linear location along the conduit allowing for increased monitoring locations along the conduit.Type: GrantFiled: May 12, 2014Date of Patent: June 9, 2015Assignee: WEATHERFORD/LAMB, INC.Inventors: Trevor MacDougall, John J. Grunbeck, James R. Dunphy, Domino Taverner, Guy A. Daigle, Richard T. Jones, Milton E. Ives, Jr.
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Patent number: 9046703Abstract: A semiconductor optical modulator includes optical input and output portions; a plurality of Mach-Zehnder modulators, each including first and second waveguide arms having first and second modulation electrodes, respectively; an optical demultiplexer coupled between the optical input portion and the Mach-Zehnder modulators through an optical waveguide; an optical multiplexer coupled between the optical output portion and the Mach-Zehnder modulators; a plurality of electrical inputs; and a plurality of differential transmission lines electrically connecting the electrical inputs to the Mach-Zehnder modulators. The first modulation electrode and the second modulation electrode of at least one of the Mach-Zehnder modulators, one of the electrical inputs, and one of the differential transmission lines that connects such one electrical input to such one Mach-Zehnder modulator form an electrical circuit having a differential impedance in a range of 80? to 95?.Type: GrantFiled: February 26, 2014Date of Patent: June 2, 2015Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chie Fukuda, Naoya Kono, Morihiro Seki, Kazuhiro Yamaji, Yasuyuki Yamauchi, Keiji Tanaka, Taizo Tatsumi, Naoki Itabashi
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Patent number: 9036964Abstract: An optical light guide coupler for coupling at least two light guides comprises an input face and an output face, wherein the optical light guide coupler is configured to receive light from a first light guide having a stepped output profile and is configured to transmit that light to a second light guide having a non-stepped profile. The input face of the light guide coupler is registered to the stepped output profile of the first light guide and the output face of the light guide coupler is at least one of rectilinear and curved.Type: GrantFiled: February 14, 2013Date of Patent: May 19, 2015Assignee: 3M Innovative Properties CompanyInventor: Andrew J. Ouderkirk
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Patent number: 9031359Abstract: In an embodiment, a delay line interferometer (DLI) multiplexer (MUX) includes a first stage and a second stage. The first stage includes a first DLI and a second DLI. The first DLI includes a first left input, a first right input, and a first output and has a free spectral range (FSR) that is about four times a nominal channel spacing. The second DLI includes a second left input, a second right input, and a second output and has an FSR that is about four times the nominal channel spacing. The second stage is coupled to the first stage and includes a third DLI. The third DLI includes a third left input optically coupled to the first output, a third right input optically coupled to the second output, and a third output. An FSR of the third DLI is about two times the nominal channel spacing.Type: GrantFiled: May 3, 2012Date of Patent: May 12, 2015Assignee: Finisar CorporationInventors: Yasuhiro Matsui, Bernd Huebner, Charles B. Roxlo
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Patent number: 9002170Abstract: A dust cap adapted to fit over a fiber optic adapter. The dust cap includes a dust cap body having a light-entering end and an opposite indicating end. The dust cap body is shaped such that the light-entering end has an interference fit with the fiber optic adapter. A first gap-creating projection extends from the light-entering end, and a second gap-creating projection extends from the light-entering end. The dust cap also includes a light pipe running along a longitudinal axis of the dust cap body from just beyond the light-entering end to just beyond the indicating end.Type: GrantFiled: August 6, 2012Date of Patent: April 7, 2015Inventors: Dan J. Neitge, Brad S. Morrow
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Patent number: 8989526Abstract: A method of providing Raman amplification in an optical fiber sensing system, comprises generating a probe pulse of light and launching the pulse into a sensing optical fiber, generating pump light at a shorter wavelength and modulating it to produce a time-varying intensity profile, and launching the pump light into the sensing fiber. such that the intensity of the launched pump light during launch of the probe pulse is different from the intensity at other times. Raman amplification of backscattered light produced by the probe pulse as it propagates along the fiber is achieved, as is amplification of the probe pulse if the pump power is non-zero during launch of the probe pulse.Type: GrantFiled: July 12, 2007Date of Patent: March 24, 2015Assignee: Schlumberger Technology CorporationInventor: Arthur H. Hartog
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Patent number: 8971672Abstract: The invention relates to an integrated optical waveguide evanescent field sensor (1) for sensing of chemical and/or physical quantities, comprising a substrate (2) carrying a waveguide layer structure provided with—a waveguide core layer (10) sandwiched between two cladding layers (11, 12) formed by a lower (11) and a upper (12) cladding layer, of a lower refractive index than the waveguide core layer (10), —a sensing section (14A, 14B) comprising a sensing layer (13) included in the upper cladding layer (12), wherein a longitudinal section of said substrate including said waveguide layer structure and said sensing section (14A, 14B) is exchangeable as a separate element (20).Type: GrantFiled: June 15, 2011Date of Patent: March 3, 2015Assignee: Optisense B.V.Inventors: Martinus Bernardus Johannes Diemeer, Hermanus Marcellinus Maria Klein Koerkamp, Tonnis Meindert Koster
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Patent number: 8961039Abstract: An optical-electric conversion connector configured to be connected to a mating connector. The optical-electric conversion connector includes an optical semiconductor element for converting between an optical signal and an electrical signal; a supporting member for supporting the optical semiconductor element; a contact member connected to the optical semiconductor element for contacting with a mating contact member of the mating connector; a first resin member formed of a transparent resin for integrally holding the optical semiconductor element, the supporting member, and the contact member, and a second resin member mounted on an outer surface of the first resin member. The first resin member is arranged to seal at least the optical semiconductor element. A method of producing the optical-electric conversion connector includes an element arrangement step, a conductive member connecting step, a first resin molding step, and a second resin molding step.Type: GrantFiled: June 21, 2012Date of Patent: February 24, 2015Assignee: Hirose Electric Co., Ltd.Inventors: Yoshiaki Sano, Takeshi Yamazaki, Shuji Suzuki
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Patent number: 8961037Abstract: An optical connector body is formed by an optically-transparent resin molding. The optical connector body includes an optical fiber insertion hole formed parallel to a board surface, a wall with which an optical fiber provided at a front of the optical fiber insertion hole contacts, and an internal reflection surface adjacent to and in front of the wall. The internal reflection surface is formed at a bottom surface of a bottomed hole opened from outside in the optical connector body.Type: GrantFiled: October 16, 2009Date of Patent: February 24, 2015Assignee: Fujikura Ltd.Inventor: Akito Nishimura
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Patent number: 8950952Abstract: In one embodiment, an optical subassembly includes a housing, a ball lens, a constraining insert, and a ball lens constraint. The housing includes a fiber receptacle formed in a first end of the housing and a second receptacle formed in a second end of the housing opposite the first end. The fiber receptacle and second receptacle define a cavity through the housing from the first end to the second end of the housing. The ball lens and the constraining insert are disposed within the cavity. The ball lens constraint is configured to cooperate with the constraining insert to constrain the ball lens in three dimensions within the cavity.Type: GrantFiled: February 18, 2010Date of Patent: February 10, 2015Assignee: Finisar CorporationInventors: Stefan M. Pfnuer, Tat Ming Teo, Songyang Li
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Patent number: 8944544Abstract: The present invention provides a printing apparatus and a printing method which, even if print media of different sizes are printed, can print images in well-balanced, optimum layouts according to the size of each of the print media. Thus, the printing apparatus according to the present invention has leading end detector which detects a leading end of a print medium and trailing end detector which detects a trailing end of the print medium. The printing apparatus further has print control unit which prints images based on a first print data for which a print start position is determined on the basis of the leading end detected by the leading end detector and second print data for which a print start position is determined on the basis of the trailing end detected by the trailing end detector.Type: GrantFiled: June 23, 2008Date of Patent: February 3, 2015Assignee: Canon Finetech, Inc.Inventors: Kohei Ishikawa, Tadashi Saito, Noritaka Nakashima
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Patent number: 8934739Abstract: A sensor head for an optical pressure sensor according to the present invention includes: a light-emitting optical fiber for transmitting light emitted from a light source; a reflecting plate whose position relative to an end surface of the light-emitting optical fiber moves in accordance with a pressure and which reflects the light emitted from the end surface of the light-emitting optical fiber; a first optical fiber and a second optical fiber, each of which has an end surface that the light reflected by the reflecting plate enters, the first optical fiber transmitting the light thus entered to a first photodetector and the second optical fiber transmitting the light thus entered to a second photodetector; and a light-intensity variation section that changes a transmission loss in the light-emitting optical fiber in accordance with a change in humidity in the sensor head.Type: GrantFiled: August 4, 2011Date of Patent: January 13, 2015Assignee: Fujikura Ltd.Inventors: Daisuke Awaji, Akira Sakamoto
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Patent number: 8915655Abstract: An optical fiber connector includes front and back fasteners, and an end socket. The front fastener includes a front body and a pressing part. A first lateral wall of the front body has a first engaging hole and a second opposite lateral wall thereof has a second engaging hole. The back fastener includes a back body and an assembling part. The front portion of the back body is coupled with a back portion of the front body and the back body has first and second engaging blocks. The first and second engaging blocks are coupled respectively with the first and second engaging holes. The first engaging hole is sized differently from the second engaging hole. The assembling part is disposed on a back portion of the back body. An end socket has a front portion secured to the assembling part, and a back portion that has a terminal.Type: GrantFiled: November 19, 2012Date of Patent: December 23, 2014Assignee: Baycom Opto-Electronics Technology Co., Ltd.Inventors: Chien-Feng Yu, Tung-Chun Huang
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Patent number: 8873904Abstract: A wavelength selective switch according to the present invention includes at least one input port for inputting wavelength-multiplexed light, a dispersive element which receives the light from the input port, and disperses the received light, a light converging element which converges dispersed light which has been dispersed for each wavelength, a light deflecting member having a plurality of reflecting optical elements which are capable of independently deflecting each dispersed light from the light converging element, and at least one output port which receives light which has been deflected by the light deflecting member. An area having a reflectivity higher than a central area of the reflecting surface is formed in at least a part of an end portion of the reflecting surface in the dispersive direction by the dispersive element.Type: GrantFiled: March 9, 2011Date of Patent: October 28, 2014Assignee: JDS Uniphase CorporationInventor: Satoshi Watanabe
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Patent number: 8867878Abstract: A fiber optic cable has at least one fiber and at least one buffer tube surrounding the fiber, with the fiber being loosely held within the buffer tube. A jacket surrounds the tube where the at least one buffer tube is constructed from an extruded transparent polymer, allowing the arrangement of the fiber within the buffer tube to be visible along the entire length of the tube.Type: GrantFiled: June 16, 2010Date of Patent: October 21, 2014Assignee: NexansInventor: David Keller
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Patent number: 8861915Abstract: An optical fiber includes a core portion and a cladding portion that is formed around an outer periphery of the core portion and has a refractive index lower than a maximum refractive index of the core portion. As characteristics at a wavelength of 1550 nm, an effective core area in a fundamental propagation mode is 120 ?m2 or larger, an effective core area in a first higher-order propagation mode is 150 ?m2 or larger, an effective core area in a second higher-order propagation mode is 180 ?m2 or larger. An effective refractive index in the second higher-order propagation mode is larger than the refractive index of the cladding portion by 0.0002 or more, and an effective refractive index in a third higher-order propagation mode is less than the refractive index of the cladding portion.Type: GrantFiled: May 8, 2013Date of Patent: October 14, 2014Assignee: Furukawa Electric Co., Ltd.Inventor: Kazunori Mukasa