ar Coated abrasive article and methods of ablating coated abrasive articles By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A coated abrasive article comprises an abrasive layer secured to a backing. The abrasive layer comprises abrasive particles secured by at least one binder to a first major surface of the backing. A supersize is disposed on at least a portion of the abrasive layer. The coated abrasive article has a melt flow zone adjacent to an edge of the coated abrasive article, wherein the melt flow zone has a maximum width of less than 100 micrometers, and the melt flow zone has a maximum height of less than 40 micrometers. Methods of using infrared lasers to ablate coated abrasive articles are also disclosed, wherein a laser wavelength is matched to a component of the coated abrasive article. Full Article
ar Knife sharpener By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A knife sharpener having an angled bolster for providing predetermined sharpening angles with respect to the sharpening surface is provided. The angled bolster of the knife sharpener preferably includes two different angled surfaces for establishing at least two different predetermined sharpening angles for a cutting implement to be sharpened. The angled bolster is configured to set up the knife sharpening angle at predetermined angles with respect to the sharpening surface. Full Article
ar Texturing of a storage cell for reduced friction retention of a data storage cartridge By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Described are embodiments of an invention for a method and a tool to produce a textured surface on the retention tab of a storage cell. The tool has a form that fits within the storage cell. The form has a hard material with a hard surface with contacts a surface of the retention tab within the storage cell. The movement of the hard surface across the surface of the retention tab produces a textured surface on the retention tab. The textured interface between a notch of a data storage cartridge and a retention tab of a storage cell provides a consistent and low friction force that retains the data storage cartridge within the cell but allows the accessor to easily remove the data storage cartridge when needed. Full Article
ar Blasting method and apparatus having abrasive recovery system, processing method of thin-film solar cell panel, and thin-film solar cell panel processed by the method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Particularly, a thin-film solar cell panel or the like is processed without necessity of attaching and detaching of mask and washing steps with respect to a workpiece in a fine blasting employing a fine abrasive. A negative pressure space (20) and an opposing negative pressure space (40) having openings (22, 42) are opposed by being spaced at a movement allowable interval of the workpiece such as a thin-film solar cell panel or the like and so as to face one side edge in the same direction as a moving direction of the workpiece. Further, a fine abrasive is injected while relatively moving the workpiece in a moving direction (T) with respect to a blast gun (30) in which an injection hole (31) is disposed within the negative pressure space (20), and the fine abrasive injected into the negative pressure space (20) and/or the opposing negative pressure space (40) and a cut and removed cut scrap such as a thin film layer or the like are sucked and recovered through the intermediary of suction devices (21a, 21b) and/or an opposing suction device (41) respectively communicating with the spaces (20) and/or (40). Full Article
ar Method and apparatus for reconditioning digital discs By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An automated method for reconditioning a plurality of digital discs within a reconditioning apparatus is disclosed. The method comprises holding the digital discs in a load area, and then transferring each of the digital discs from the load area to at least one workstation with a disc transfer mechanism. The method also comprises reconditioning each of the digital discs transferred to the workstation with at least one worktool operable to remove a portion of the protective coating of each of the digital discs without removal of the data underlying the protective coating. The method further comprises transferring each of the digital discs from the workstation to an unload area with the disc transfer mechanism, and then holding the digital discs in the unload area for manual retrieval. Advantageously, the digital discs may be automatically reconditioned within the reconditioning apparatus without manual manipulation of the digital discs during the reconditioning process. Various exemplary embodiments of the reconditioning apparatus and associated method are provided. Full Article
ar Enclosed polishing apparatus By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An enclosed polishing apparatus include a housing, a fixing seat, a guiding mechanism, and a chain-driven polishing mechanism. The housing includes a bottom housing and a top housing connected to the bottom housing. The fixing seat is securely placed in the bottom housing. The guiding mechanism is placed in the top housing above the fixing seat. The polishing mechanism is movably mounted on the guiding mechanism above the fixing seat. The polishing mechanism is driven and guided by the guiding mechanism to follow a desired polishing contour on a workpiece. Full Article
ar Continuously variable transmission oil composition By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A continuously variable transmission oil composition comprising a base oil and at least one phosphorous compound in such an amount that the phosphorus in the phosphorus compound accounts for 0.005 to 0.15 mass % of the total mass of the composition and wherein the continuously variable transmission oil composition has a friction coefficient from 0.146 to 0.164 when tested according to ASTM D2714. Full Article
ar Machine part comprising a physical component coated with a polyelectrolyte layer By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT The invention relates to a machine part comprising a first physical component, wherein: the first physical component is configured for moving relative to a second physical component; the first physical component has a first surface with a contact area for physical contact with the second physical component; the first physical component is shaped spatially complementarity to the second physical component at the contact area, and a polyelectrolyte layer is present on the first surface at a location of the contact area. The invention further relates to a machine comprising the present machine part and the second physical component. In addition, the invention relates to the use of a polyelectrolyte layer to reduce the friction between the first physical component and the second physical component, and a rolling-elements bearing. Full Article
ar Star polymer lubricating composition By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition. Full Article
ar Lubricating oil compositions containing epoxide antiwear agents By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) an oil soluble epoxide compound having the following structure: wherein X is hydrogen or a substituted or unsubstituted C1 to C20 hydrocarbyl group, wherein the substituted hydrocarbyl group is substituted with one or more substituents selected from hydroxyl, alkoxy, ester or amino groups and Y is —CH2OR, —C(═O)OR1 or —C(═O)NHR2, wherein R, R1 and R2 are independently hydrogen or C1 to C20 alkyl or alkenyl groups; and further wherein the oil of lubricating viscosity does not contain a carboxylic acid ester. Full Article
ar Molybdenum dialkyldithiocarbamate compositions and lubricating compositions containing the same By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A novel molybdenum dithiocarbamate composition is produced by preparing a di-tridecylamine (DTDA) intermediate from a butylene feedstock comprising greater than 50% 2-butylene, and preparing a molybdenum dithiocarbamate composition from the DTDA intermediate. The resulting molybdenum dithiocarbamate composition are according to formula (1), wherein R1 to R4 are C11-C14 isoalkyl groups, and X represents oxygen and/or sulfur atoms, and R1 to R4 comprise, on average, greater than 98% C13: Full Article
ar Method of preparing greases By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles. Full Article
ar Grease composition for hub unit bearing employing an angular contact ball bearing and hub unit bearing By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The invention provides a grease composition for a hub unit bearing employing an angular contact ball bearing, containing (a) as a thickener a mixture of diurea compounds represented by formula (I): R1—NHCONH—R2—NHCONH—R1, formula (II): R1—NHCONH—R2—NHCONH—R3, and formula (III): R3—NHCONH—R2—NHCONH—R3 wherein R1 is cyclohexyl group, R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, R3 is a straight-chain or branched alkyl group having 12 to 20 carbon atoms, and (R1/(R1+R3))×100=85 to 95 mol %; (b) a base oil; (c) a molybdenum dialkyldithiocarbamate; and (d) a calcium sulfonate. The grease composition of the invention, when used in the hub unit bearing, shows minimum leakage, excellent anti-flaking properties and satisfactory bearing lubrication life. Full Article
ar Nanoparticle-containing lubricating oil compositions By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT [Object] To provide a nanoparticle-containing lubricating oil composition which demonstrates a low friction coefficient and realizes a further fuel economy. [Solving Means] A nanoparticle-containing lubricating oil composition comprising a base oil, an additive having hydroxyl group, and nanoparticle. A nanoparticle-containing lubricating oil composition comprising a base oil, an ashless friction modifier having hydroxyl group, and nanoparticle. A nanoparticle-containing lubricating oil composition comprising a base oil, an additive having hydroxyl group, and nanoparticle having a particle diameter of 1 to 100 nm. A nanoparticle-containing lubricating oil composition comprising a base oil, an ashless friction modifier having hydroxyl group, and nanoparticle having a particle diameter of 1 to 100 nm. Full Article
ar Friction and wear management using solvent partitioning of hydrophilic-surface-interactive chemicals contained in boundary layer-targeted emulsions By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Lubrication additives of the current invention require formation of emulsions in base lubricants, created with an aqueous salt solution plus a single-phase compound such that partitioning within the resulting emulsion provides thermodynamically targeted compounds for boundary layer organization thus establishing anti-friction and/or anti-wear. The single-phase compound is termed “boundary layer organizer”, abbreviated BLO. These emulsion-contained compounds energetically favor association with tribologic surfaces in accord with the Second Law of Thermodynamics, and will organize boundary layers on those surfaces in ways specific to the chemistry of the salt and BLO additives. In this way friction modifications may be provided by BLOs targeted to boundary layers via emulsions within lubricating fluids, wherein those lubricating fluids may be water-based or oil-based. Full Article
ar Lubricant composition and continuously variable transmission By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Provided is a lubricating oil composition containing a base oil which includes a mineral oil and/or a synthetic oil, and compounded therein, (A) at least one phosphorus-containing compound selected from phosphoric acid monoesters, phosphoric acid diesters and phosphorous acid monoesters, each having a C1 to C8 hydrocarbon group or groups and (B) a tertiary amine compound having C6 to C10 hydrocarbon groups as substituents thereof. The lubricating oil composition provides both a high metal to metal friction coefficient and an excellent wear resistance and is suitably used in a continuously variable transmission. Full Article
ar Universal synthetic lubricant additive with micro lubrication technology to be used with synthetic or miner host lubricants from automotive, trucking, marine, heavy industry to turbines including, gas, jet and steam By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT It is known by the inventor that a universal synthetic lubricant additive that can greatly enhance the performance standards of existing lubricants, petroleum based or synthetic, imparts a new and desirable property not originally present in the existing oil or it reinforces a desirable property already possessed in some degree can greatly benefit the consumer. Although additives of many diverse types have been developed to meet special lubrication needs, their principal functions are relatively few in number. This universal synthetic lubricant additive (invention) with micro lubrication technology, when used as directed will reduce the oxidative or thermal degradation of the host oil, substantially reduce the deposition of harmful deposits in lubricated parts, minimize rust and corrosion, control frictional properties, reduce wear, temperature, sludge, varnishes and prevent destructive metal-to-metal contact, reduce fuel consumption and harmful emissions while improving performance through increased horsepower and torque. Full Article
ar Antiwear composition and method of lubricating driveline device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) an amine or metal salt of a phosphorus compound that is either (i) a hydroxy-substituted di-ester of (thio)phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of (thio)phosphoric acid. Full Article
ar Blade position registering apparatus By www.freepatentsonline.com Published On :: Tue, 18 Feb 2014 08:00:00 EST A carriage is moved in a direction including a Y axis component in order to move a turning process tool that is attached to a tool spindle along a horizontal line that is perpendicular to a Z axis, and thus, a turning process is carried out on a workpiece which is attached to a workpiece spindle. Full Article
ar Tool stocker, machine tool system, and tool damage detecting apparatus By www.freepatentsonline.com Published On :: Tue, 18 Mar 2014 08:00:00 EDT A tool stocker includes main stockers for holding a plurality of tools detachably mounted on a main spindle for machining a workpiece, an auxiliary stocker for holding and transferring tools to and from the main stockers, and a tool transfer mechanism for transferring tools between the main stockers and the auxiliary stocker. The auxiliary stocker includes a plurality of tool pods for removably supporting the tools therein, a rail in sliding engagement with outer surfaces of the tool pods, a chain for moving the tool pods in sliding engagement with the rail, and a motor for actuating the chain. The rail has a recess defined therein in alignment with the tool transfer mechanism, such that the tools transferred by the tool transfer mechanism pass through the recess. Full Article
ar Method for controlling combined lathe apparatus By www.freepatentsonline.com Published On :: Tue, 13 May 2014 08:00:00 EDT A carriage is moved in a direction including a Y axis component in order to move a turning process tool that is attached to a tool spindle along a horizontal line that is perpendicular to a Z axis, and thus, a turning process is carried out on a workpiece which is attached to a workpiece spindle. Full Article
ar Switching device having a non-linear element By www.freepatentsonline.com Published On :: Tue, 01 Jul 2014 08:00:00 EDT Method for a memory including a first, second, third and fourth cells include applying a read, program, or erase voltage, the first and second cells coupled to a first top interconnect, the third and fourth cells coupled to a second top interconnect, the first and third cells coupled to a first bottom interconnect, the second and fourth cells are to a second bottom interconnect, each cell includes a switching material overlying a non-linear element (NLE), the resistive switching material is associated with a first conductive threshold voltage, the NLE is associated with a lower, second conductive threshold voltage, comprising applying the read voltage between the first top and the first bottom electrode to switch the NLE of the first cell to conductive, while the NLEs of the second, third, and the fourth cells remain non-conductive, and detecting a read current across the first cell in response to the read voltage. Full Article
ar Component mounting apparatus and method for photographing component By www.freepatentsonline.com Published On :: Tue, 11 Nov 2014 08:00:00 EST There is provided a component mounting apparatus, which includes: a nozzle which sucks a component; a nozzle supporting member, on which the nozzle is installed, which moves in a vertical direction with respect to an upper surface of a substrate on which the component sucked at the nozzle is mounted; an optical system which captures an image of a leading edge portion of the nozzle where the component is sucked in a component mounting operation, from a side direction, such that an optical axis of the optical system is inclined at a predetermined angle with respect to a sucking surface of the nozzle; and an analyzer which analyzes the image of the leading edge portion to determine whether a sucking state of the component sucked by the nozzle is normal or abnormal. Full Article
ar Turning tool holder used for a combined lathe apparatus By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST A carriage is moved in a direction including a Y axis component in order to move a turning process tool that is attached to a tool spindle along a horizontal line that is perpendicular to a Z axis, and thus, a turning process is carried out on a workpiece which is attached to a workpiece spindle. Full Article
ar Variable strength magnetic end effector for lift systems By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST A device and method for adjusting the magnetic strength of a magnetic end effector for lift systems is described. The magnetic end effector is capable of lifting discriminate payloads by selectively varying the strength of the magnetic forces output by the magnetic end effector. An actuator can be operatively coupled to the variable strength magnet end effector, wherein the actuator is selectively actuatable to control the adjustment of the variable strength magnet. The actuator may also be configured to maintain the variable strength magnet at a desired magnetic force output strength once achieved for any given amount of time. Full Article
ar Electrode management device for electrical discharge machining machine tools By www.freepatentsonline.com Published On :: Tue, 16 Dec 2014 08:00:00 EST Device for managing the electrodes for electrical discharge machining EDM machine tools comprises at least one magazine (1) that has a series of individual housings (33) designed to accept and hold exchangeable elements (5) consisting of electrodes (6, 22) mounted on an electrode holder (11a, 11b), and a changer device (2) equipped with a gripper (2) intended to move the exchangeable elements (5) from the individual housings (33) towards the machine and vice versa. A first adapter piece (21) is associated with each of the exchangeable elements (5). This adapter piece (21) surrounds the electrode holder (11a, 11b) and is gripped around its periphery by the gripper (9) of the changer (2) so as to guarantee that the exchangeable element (5) is held precisely. The device further comprises a second adapter piece (32) associated with each of the individual housings (33) of the magazine (1) that are likely to be used. Full Article
ar Chain-type bit-storing apparatus By www.freepatentsonline.com Published On :: Tue, 20 Jan 2015 08:00:00 EST A machine tool is provided with a chain-type bit-storing apparatus which includes a frame, two sprockets, a chain and a pivoting unit. The frame includes a cutout. The sprockets are placed in the frame. The chain is driven by the sprockets. The chain includes links each including a socket for containing a bit, two plates for supporting the socket, first and second blocks placed between the plates, first and second bearing units for rotationally supporting the first and second blocks on the plates, and a connecting unit for pivotally connecting the first block thereof to the second block of an adjacent link. The pivoting unit is used to pivot the socket of a selected one of the links to move an open end of the socket out of the frame through the cutout. Full Article
ar Welding tip replacement apparatus, welding tip replacement system, and method for replacing welding tip By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST A welding tip replacement apparatus is used for a welding torch that includes a tubular tip connection body, a tubular retaining member fitted over the tip connection body, and a tubular welding tip fitted within the tip connection body, the welding torch being configured such that displacing the retaining member toward the proximal end of the tip connection body along the axis of the tip connection body causes the welding tip axially fastened to the tip connection body to be released. The apparatus includes a first grasping mechanism grasping the retaining member, a second grasping mechanism grasping the welding tip protruding from the retaining member in a direction away from the distal end of the tip connection body, a first driving mechanism driving the first grasping mechanism axially, and a second driving mechanism driving the second grasping mechanism axially. Full Article
ar Weld gun part clamp device and method By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST A combination component handling and connecting device connectable to a multi-axis robot for use in moving and connecting components and subassemblies includes a housing and an actuator fixedly connected to the housing. The actuator includes an actuating link movable from a first position to a second position. Connected to the actuating link is an end effector for concurrent movement with the actuating link. The component handling and connecting device includes a clamp having a first jaw and a second jaw. The second jaw is connected to the actuating link for selectively moving the second jaw toward the first jaw operative to engage a component. Full Article
ar Method and apparatus for transporting deterministic traffic in a gigabit passive optical network By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A system and method are disclosed for transporting deterministic traffic in a gigabit passive optical network. A system that incorporates teachings of the present disclosure may include, for example, an Optical Line Termination (OLT) for exchanging data traffic in a Gigabit Passive Optical Network (GPON) having a controller programmed to generate a timeslot schedule for transport of a desired bandwidth of constant bit rate (CBR) data traffic by selecting one or more timeslots from periodic frame clusters operating according to a GPON Transmission Convergence (GTC) protocol. Additional embodiments are disclosed. Full Article
ar Method and apparatus for controlling update of digital pre-distortion coefficient By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method and apparatus for controlling update of digital pre-distortion (DPD) coefficient is provided. The apparatus is applicable to a digital power control system, wherein the apparatus comprises: an update controlling unit configured to determine a group of fully-trained DPD coefficients among a plurality of DPD coefficients; and a DPD coefficient generating unit configured to update adaptively the group of fully-trained DPD coefficients according to the result of judgment of the update controlling unit. The DPD coefficients are allowed to be updated after being judged as being able to be fully trained according to power distribution information of DPD input signals, or according to address distribution information of an LUT, or according to average power of output of an HPA; otherwise, they may not be updated, thereby efficiently preventing DPD abnormality resulted from unfull training of coefficients in being updated. Full Article
ar Apparatus and method for rerouting multiple traffics By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The disclosure discloses an apparatus and method for rerouting multiple traffics. The apparatus includes a path computation unit and a traffic path incorporation unit, the path computation unit forwards a received uniform route computation notification message including multiple pieces of failed traffic connection information to the traffic path incorporation unit, and also forwards a route inquiry request transmitted from the head node of the fault traffic to the traffic path incorporation unit; the traffic path incorporation unit analyzes and detects the failed traffic connection information according to traffic incorporating and route inquiry statistic algorithm, and uniformly obtains and records the recovery route information from the path computation unit; when receiving the route inquiry request forwarded by the path computation unit, the traffic path incorporation unit is further configured to search the record according to the route inquiry request, and return the found corresponding recovery route information to the head node which requests the recovery through the path computation unit. The disclosure uses a incorporating and uniform route inquiry method, the resource loss of the path computation unit is reduced, and the efficiency of link restoration is improved. Full Article
ar Method and apparatus for dynamically allocating bandwidth to a client in a passive optical network By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Embodiments of the present disclosure provide methods for allocating bandwidth to a plurality of traffic containers of a passive optical network. The method comprises receiving upstream data from a plurality of traffic containers of the passive optical network and passing the upstream data to a traffic manager. The method further comprises dynamically changing the allocated bandwidth based at least in part on the amount of the upstream data stored in one or more queues of the traffic manager. Full Article
ar System and method for infrared dongle By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method of controlling consumer devices using an infrared dongle coupled to a mobile device includes receiving power for the infrared dongle from the mobile device. The infrared dongle includes an infrared transmitter coupled to a microcontroller. One or more instructions are received in the microcontroller from the mobile device. The received one or more instructions are generated from codes stored in a memory of the mobile device. In response to the receiving, one or more infrared signals are transmitted via the infrared transmitter to at least one of the consumer devices. Full Article
ar Method and apparatus of decoding low-rate visible light communication signals By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits. Full Article
ar Optical receiver, polarization separation device and polarization separating method By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Provided is a polarization separation device which converges filter coefficients used in polarization separating process more quickly. The polarization separation device according to the present invention comprises: a first filter means 11 which applies filtering process on each of first and second input signals, which are detected from an received optical signal, with elements of a characteristic matrix representing the inverse characteristics of an optical transmission path as filter coefficients, and uses each of the filtered signals to output a first output signal; a second filter means 12 which applies filtering process on each of the first and second input signals with the other elements of the characteristic matrix as filter coefficients, and uses each of the filtered signals to output a second output signal; a filter coefficient update means 13 which updates the first filter coefficients using a relation between the elements of the characteristic matrix so as to further reduce both error signals of the first and second output signals; and a filter coefficient update means 14 which updates the second filter coefficients using the relation between the elements of the characteristic matrix so as to further reduce both error signals to the first and second output signals. Full Article
ar Method and apparatus for fault discovery in a passive optical network (PON) By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An apparatus and method for fault indication and localization in a Passive Optical Network (PON) comprising a multistage power splitter (100, 200, 300) with at least one 1:N splitter (120, 221, 222, 321, 322) followed by N items of 2:M splitters (131, 132, 231-233, 331-336), wherein N and M are integers greater than 1. The apparatus also comprises an Optical Time Domain Reflectometry (OTDR) device (110, 210, 310) capable of inserting an OTDR signal into the power splitter (100, 200, 300), and adapted to insert the OTDR signal between the first stage of the at least one 1:N splitter (120, 221, 222, 321, 322) and the second N items of 2:M splitters (131, 132, 231-233, 331-336). Full Article
ar Minimizing bandwidth narrowing penalities in a wavelength selective switch optical network By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT This invention relates to provisioning wavelength-selective switches and reconfigurable optical add-drop multiplexers to minimize the bandwidth narrowing effect from the optical filters. Novel architectures and methods are disclosed that can significantly reduce bandwidth-narrowing on channels in a reconfigurable WDM network where a large number of optical filter elements are cascaded. Instead of blocking unused channels as in the prior art, unused channels are selectively provisioned depending on the state of their adjacent channels. Unused adjacent channels of an active channel are provisioned to follow the same path as the active channels. As each channels is deployed, the channel frequency is selected so as to minimize bandwidth narrowing. Full Article
ar System and method for compensating signal degradation in dual polarization optical systems By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for adjusting an optical signal includes determining a polarization dependent loss (PDL) value associated with the optical signal, determining an angle between the optical signal and one or more axes of PDL, determining an amount of nonlinear phase noise due to PDL and nonlinear effects upon the optical signal based upon the PDL value and the angle, determining a phase rotation based upon the amount of nonlinear phase noise, and applying the phase rotation to the optical signal. Full Article
ar Device identification apparatus and remote control system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The device identification apparatus includes: a remote controller signal detecting section for detecting an optical signal from a remote controller; a receiving section for receiving the optical signal from the remote controller; a signal decryption section for decrypting the optical signal received by the receiving section; and a transmitting section for transmitting a device identification signal when the optical signal is a device selecting signal, and configured such that operations of the receiving section, the signal decryption section, and the transmitting section are started in response to a detecting signal of the remote controller signal detecting section, thereby realizing a device identification apparatus in which power consumption during standby is minimized. Full Article
ar Optical transceiver having an extra area in circuit board for mounting electronic circuits By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An optical transceiver of one embodiment includes a transmitter optical subassembly to transmit an optical signal, a receiver optical subassembly to receive an optical signal, a mother board, a daughter board, and a housing. The mother board mounts electronic circuits that electrically communicate with the optical transmitter optical subassembly and the receiver optical subassembly. The daughter board mounts other electronic circuits that electrically communicate with the optical transmitter optical subassembly and the receiver optical subassembly. The daughter board has an extra area mounting a portion of the other electronic circuits. The housing defines a space for installing the optical transmitter optical subassembly, the receiver optical subassembly, the mother board, and the daughter board. The extra area is disposed outside the space. Full Article
ar Skiving tool comprising cutter bars By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST A skiving tool for manufacturing a rotationally symmetrical periodical structure on a work piece by means of a power skiving method. The skiving tool comprises a base body comprising a central rotation axis and a plurality of receiving openings and a plurality of cutter bars, fewer than or equal to the number of receiving openings. Each of the receiving openings has an elongate shape having a longitudinal axis, and the receiving openings can be arranged uniformly around the central rotation axis. The longitudinal axes of the receiving openings are generators of a rotation hyperboloid, which is arranged rotationally symmetrical to the central rotation axis. Full Article
ar Rotary cutting tool By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST To provide a rotary cutting tool in which a satisfactory cut state in which burrs and uncut portions are absent is obtained, even when counterboring is applied to a composite honeycomb member. A first cutting-chip discharge groove (2) disposed from a tool tip towards a base-end side is formed on an outer periphery of a tool body (1); a plurality of second cutting-chip discharge grooves (3), provided along a spiral disposed from the tool tip towards the base-end side so as to intersect with the first cutting-chip discharge groove (2), are formed on an outer periphery section of the tool body (1) where the first cutting-chip discharge groove (2) is absent; and a base-end-side outer periphery cutting edge (4) is formed on an intersection ridge between a rake face of a second cutting-chip discharge groove (3), which faces a direction of tool rotation, and an outer peripheral surface of the tool body (1) or an outer peripheral relief face; wherein an end cutting edge (5) is provided at a tip section of the tool body (1); a tip-side outer periphery cutting edge (6) is formed on an intersection ridge between the rake face at a tip section of a first cutting-chip discharge groove (2) and an outer peripheral surface of the tip section of the tool body (1) or an outer periphery relief face (18); and the base-end-side outer periphery cutting edge (4) is provided further towards the tool base-end side than the tip-side outer periphery cutting edge (6). Full Article
ar Cutting insert and chip-control arrangement therefor By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST A cutting insert has at least first and second side surfaces, with a chip-control arrangement. The chip-control arrangement includes at least one projection disposed at an intersection of a corner of the cutting insert. When the chip-control arrangement includes two projections they can be disposed symmetrically on both sides of the intersection. Each of the at least one projections is elongated and extends longitudinally along an associated side surface. Full Article
ar Super-hard cutter inserts and tools By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT A cutter insert assembly for a drill bit for boring into the earth, comprising a super-hard structure clampable to a support body by means of a clamp mechanism; the clamp mechanism comprising opposed or opposable compression members connected or connectable by a tension member capable of sustaining a clamping force between the compression members when the cutter insert assembly is in a clamped condition, in which condition the compression members exert opposing compressive forces on the super-hard structure and the support body, operable to clamp the super-hard structure to the support body, and in which condition the cutter insert assembly is self-supporting and capable of being mounted onto a drill bit body. Full Article
ar Cartridge with fine adjustment means By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT Cartridge for supporting at least one cutting insert and for being received on a tool body is disclosed. At least a first portion of the cartridge may be stationary mounted and the cartridge includes at least one pocket for receiving a cutting element. A coarse and a fine adjustment means are provided by means of which at least a second portion of the cartridge including the pocket may be moved with respect to the tool body and wherein the coarse and the fine adjustment means are merely provided at the cartridge. Full Article
ar Cutting tool, an arrangement and a method for chip removing machining with spring members for biasing a clamping body By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT In a cutting tool for chip removing machining a holder for a cutter has a body received therein and movable with surfaces to bear against the cutter for defining the position of the cutter in the direction of an intended axis of rotation of the holder as well as a screw which may be screwed in a threaded bore in the holder. Spring members are arranged to act between the holder and the body for biasing the body against said screw portions. Full Article
ar Rotary cutting tool with effective chip evacuation By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A rotary cutting tool, such as a milling cutter (10) includes a central hub (12), a cutting rim (14) and a plurality of spokes (22) connecting the central hub (12) to the cutting rim (14). Each spoke (22) is separated by an opening (32) and polygonal in cross-sectional shape formed by two side walls (22a, 22b), two front walls (22c, 22d) and a rear wall (22e). One of the side walls (22a) of each spoke (22) is formed at a pitch angle (42) with respect to a central axis (11) of the cutting tool (10) that is sufficient to cause lift of chips through the opening (32), thereby providing effective chip evacuation during a material removal operation. Full Article
ar Surface-coated WC-based cemented carbide insert By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Provided is a surface-coated cemented carbide insert obtained by containing at least WC powder and Co powder as raw materials, including a WC-based cemented carbide obtained by forming and sintering mixed raw materials containing at least any of (a) Zr compound powder, Nb compound powder, and Ta compound powder, (b) complex compound powder of Nb and Ta, and Zr compound powder, (c) complex compound powder of Nb, Ta, and Zr, (d) complex compound powder of Nb, Zr, and Ta compound powder, and (e) complex compound powder of Ta and Zr, and Nb compound powder, as essential powder components, as a substrate, and forming a hard coating layer on the substrate by vapor deposition, in which a Co enrichment surface region is formed in a substrate surface, Co content in the Co enrichment surface region satisfies to be between 1.30 and 2.10 (mass ratio) of Co content in cemented carbide. Full Article
ar Method and apparatus for dispensing diagnostic test strips By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An apparatus for storing and dispensing a test strip includes a container configured to store a stack of test strips. The container maintains appropriate environmental conditions, such as humidity, for storing the test strips. An engaging member is disposed in the container and is adapted to contact one test strip of the stack of test strips. An actuator actuates the engaging member to dispense the one test strip from the container. Since one test strip is dispensed at a time, the remaining test strips are not handled by the user. Accordingly, the unused test strips remain free of contaminants such as naturally occurring oils on the user's hand. Full Article