Abedin
Armand Abedin, Rueil-Malmaison FR
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20150100828 | NETWORK OF DEVICES FORMING A DIAGNOSTIC SYSTEM - The present invention relates to the field of systems and methods of diagnosis of apparatuses constituting a vast machine-to-machine communication network. The system proposed is based on a virtual network linking the various apparatuses so as to form a hierarchical tree. This virtual network is reliant on the network for real communication between the apparatuses. However, the topology of the virtual network is independent of that of the real network. Each apparatus includes a diagnostic agent offering local self-diagnostic capabilities. Each apparatus enables offering a state of its operation and of the operation of the entire sub-network of which it is the father. The self-diagnostic capabilities of an apparatus are implemented either locally by the apparatus, or within apparatuses of its close network environment as a function of the capabilities of the various items of equipment. | 04-09-2015 |
Kazi S. Abedin, Basking Ridge, NJ US
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20140054451 | DBF FIBER LASER BEND SENSOR AND OPTICAL HETERODYNE MICROPHONE - Methods and systems using one or more distributed feedback (DFB) lasers for capturing changes in the lasing environment are disclosed. Specifically, a sensor for measuring a measurand, such as pressure or temperature, or changes in a measurand, includes a fiber with at least one core, at least one fiber laser cavity formed by a single fiber grating in the core, wherein the laser operates on at least two modes along at least part of its length. The DFB laser includes a section that is bent into a non-linear shape and at least one pump laser connected to the fiber laser cavity. When the DFB laser experiences a perturbation or measurand change that changes the spacing of the modes, a change in an RF beat note is generated. This beat note can then be measured and related to the measurand change. | 02-27-2014 |
20140112357 | Raman Distributed Feedback Fiber Laser and High Power Laser System Using the Same - A Raman distributed feedback (DFB) fiber laser is disclosed. It includes a pump source and a Raman gain fiber of a length smaller than 20 cm containing a distributed feedback (DFB) grating with a discrete phase structure located within no more than 10% off the center of the grating and wherein the Raman DFB fiber laser generates a laser signal with an optical spectrum, which has an optical bandwidth at half maximum optical intensity of less than 1 gigahertz (GHz) (wherein a maximum intensity frequency is different from the frequency of the pump laser). The Raman laser includes compensation for the nonlinear phase change due to Kerr effect and thermal effect resulting from absorption of the optical field, thus enhancing the conversion efficiency. | 04-24-2014 |
20140119694 | Techniques and Devices for Low-Loss Coupling to a Multicore Fiber - An optical pedestal fiber is configured to be taperable to form a tapered fiber having a mode field diameter at the tapered end that differs from the mode field diameter at the untapered end in correspondence with the difference between the cladding diameter at the tapered end and the cladding diameter at the untapered end. A plurality of such pedestal fibers can be used to construct a tapered fiber bundle coupler that provides matching of both core pitch and mode field diameter between a plurality of input fibers and individual cores of a multicore fiber. Further, the tapered fiber bundle coupler can be constructed using a plurality of fibers, in which individual fibers are configured to have different effective refractive indices, thereby suppressing crosstalk therebetween. | 05-01-2014 |
20140269789 | DISTRIBUTED FEEDBACK (DFB) BRILLOUIN FIBER LASERS - A Brillouin fiber laser uses a distributed feedback (DFB) fiber Bragg grating with a discrete π-phase shift, which is offset from the physical center of the grating as a resonator. Lasing is achieved by using the SBS gain in the DFB from narrow-linewidth laser pump radiation with an optical frequency that is higher than the central pass band of the grating by an amount nominally equal to the Stokes's frequency shift, ν | 09-18-2014 |
20150077837 | Gain-Equalized Few-Mode Fiber Amplifier - A few-mode rare-earth-doped amplifier fiber has equalized gain for the supported signal transmission modes. The fiber has a raised-index core surrounded by a lower-index cladding region. The core has a radius a | 03-19-2015 |
20150192733 | FEW MODED FIBER DEVICE EMPLOYING MODE CONVERSION - A few-moded fiber device has several discrete sections of few-moded fibers that are separated by mode converters, with each mode converter accomplishing mode conversion between one or more pairs of modes. The mode conversions can be accomplished using a sequence, such as a periodic or cyclic sequence that would cause (1) a signal wave launched with any mode to assume every other mode for one or more times; (2) the number of times the signal remains in any modal state is substantially the same; and (3) the net signal gain or loss or group delay of the input signal is substantially the same regardless of the state of input mode. A laser few-mode amplifier is provided. An optical transmission system is also provided. | 07-09-2015 |
20150219851 | Termination Of Optical Fiber With Low Backreflection - A technique is described for terminating an optical fiber with low backreflection. At a selected end of the optical fiber segment, an endface is formed at a selected angle relative to the fiber axis. A suitable material is deposited onto the angled endface to form an angled reflective surface. The angled reflective surface is configured such that light propagating along the waveguide to the selected end of the optical fiber segment is reflected back into the optical fiber segment at an angle that prevents coupling of the reflected light into the fiber core. The reflected light is dissipated along the length of the fiber segment. | 08-06-2015 |
Kazi Sarwar Abedin, Tokyo JP
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20110220776 | FIBER FUSE DETECTING APPARATUS - A fiber fuse detecting apparatus provides early detection of a fiber fuse generation in an optical fiber that propagates laser light, preventing the damage from expanding. It comprises light input means arranged on a laser light incidence side of the optical fiber that inputs at least a portion of reverse direction propagation light propagating in a reverse direction to light incidenting the optical fiber, light receiving means that photo-electrically converts light input by the light input means, electric filter means that extracts from an output signal of the light receiving means a prescribed frequency band component that contains a periodic signal due to fiber fuse, detecting means that detects change of or a prescribed value in output level of the electric filter means, and warning means that emits a warning signal in response to a detection output of the detecting means. The laser light to the optical fiber is stopped or reduced by means of the warning means. | 09-15-2011 |
Md. Anwarul Abedin, Hiroshima JP
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20090141531 | ASSOCIATIVE MEMORY AND SEARCHING SYSTEM USING THE SAME - Associative memories capable of outputting multiple reference data close to search data are provided. A memory array compares each of the multiple reference data with the search data in parallel and generates multiple comparison current signals representing the result of the comparison. A WLA converts the multiple comparison current signals into voltages. During the first cycle, the WLA detects the lowest voltage among the voltages as Winner and detects the remaining voltages as Loser. After the second cycle, based on feedback signals, the WLA detects all the voltages other than a voltage detected as Winner during the last preceding cycle, and detects the lowest voltage among the detected voltages as Winner and detects the remaining detected voltages as Loser. The WLA repeats these operations k times. | 06-04-2009 |
20100085790 | AMPLIFIER CIRCUIT AND ASSOCIATIVE MEMORY - An amplifier circuit according to the present invention includes a plurality of input nodes receiving a plurality of input voltages (VI | 04-08-2010 |
Md Faisal Abedin, Lindenhurst, IL US
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20130172049 | METHOD AND APPARATUS TO PREVENT RECEIVER DESENSITIZATION FROM RADIATED HDMI SIGNALS IN ACCESSOR OR COMPUTING DEVICES - A method and system configures operating parameters associated with an operation of a connected accessory or second device in order to mitigate harmonic interference within an operating frequency band of a wireless communication device (WCD). In response to a connection between the WCD and the second device via a physical communications interface, Accessory Authentication and Configuration (AAC) logic of the WCD receives device identifying information about the second device. The AAC logic determines candidate values for each operating parameter, based on the device identifying information. The AAC logic dynamically selects a particular candidate value for each operating parameter, based on a current operating frequency band of the WCD, and an expected level of harmonic interference. The AAC logic automatically configures each operating parameter with the corresponding selected candidate value to enable proper operation of the second device while mitigating harmonic interference within the operating frequency band of the WCD. | 07-04-2013 |
20140141731 | ANTENNA ARRANGEMENT FOR 3G/4G SVLTE AND MIMO TO ENABLE THIN NARROW BOARDERED DISPLAY PHONES - A method and system provides a multiple input multiple output (MIMO) antenna arrangement in a wireless communication device. A first antenna element and a second antenna element co-located within a same antenna volume are respectively coupled to first and second antenna feeds proximate to a base perimeter segment of a device chassis. The first antenna feed is at a pre-calculated distance from the second antenna feed. The second antenna element, a first MIMO antenna, is coupled to an antenna ground positioned proximate to the first antenna feed and at a pre-determined distance from the second antenna feed. A third antenna element operating as a second MIMO antenna is placed proximate to a top perimeter segment of the device chassis. The antenna arrangement achieves (a) low correlation between the MIMO antennas and (b) an acceptable or pre-determined level of antenna isolation between the first antenna element and the second antenna element. | 05-22-2014 |
Syed Joynal Abedin, Bronx, NY US
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20140250560 | MULTI-PIECE BIB - Exemplary embodiments of a bib having a first surface and a removable second surface may be described. The bib may have a first surface made from a variety of cloth materials and a removable second surface that can couple to the first surface. The removable second surface can be decoupled from the first surface when stained or soiled so that a wearer may be wearing a clean bib at all times. | 09-11-2014 |
Tanima Jahan Abedin, Chicago, IL US
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20160051744 | PARALLEL PROCESSING OF FLUID COMPONENTS - A kit for blood component processing comprising a fluid circuit into which blood is drawn, wherein the fluid circuit comprises a plurality of pathways; wherein the first pathway is configured to receive blood drawn from a blood source and leads to a separation device, wherein the separation device is configured to separate the blood into components; wherein the second pathway is configured to receive a first component from the separation device and transport at least a portion of the first component to a first processing device, wherein the first processing device may alter the first component to produce a first output; and wherein the third pathway is configured to receive a second component from the separation device and transport at least a portion of the second component to a second processing device, wherein the second processing device may alter the second component to produce a second output. | 02-25-2016 |