and 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
and Pre-emphasis control method and optical transmission system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A pre-emphasis control method includes calculating an average value of transmission characteristics based on transmission characteristics of a plurality of light beams received by a receiver, and determining that, among signals of the plurality of light beams, a wavelength with a deviation from the average value is a wavelength at which control is to be performed, determining that the wavelength at which control is to be performed and a wavelength adjacent thereto are a group of wavelengths at which control is to be performed, obtaining an average of transmission characteristics of the group of wavelengths at which control is to be performed, and based on a difference between averaged transmission characteristics and respective transmission characteristics of the group of wavelengths at which control is to be performed, changing a light intensity output from each transmitter that transmits a group of wavelengths at which control is to be performed. Full Article
and 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
and 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
and Method and equipment for adjusting power amplification By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention refers to a method for adjusting power levels of channels (15) in an optical link (7) of an optical network comprising at least one optical amplifier (9) wherein the power distribution among the channels (15) of the optical link (7) is achieved in function of: target power levels based on the features of corresponding connections and of link physical features,total available power in said at least one amplifier (9),features of control means allowing the power distribution, and wherein for a channel corresponding to a connection having a higher vulnerability characterizing parameter, the tolerated difference between an actual channel power level and the target power level is lower than for a channel corresponding to a connection having a lower vulnerability characterizing parameter. Full Article
and Optical transport network system, optical-signal transmission path selecting method, and optical transmission device By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An optical transport network system includes a plurality of NEs, each transmitting wavelength-multiplexed optical signals. Each NE includes a routing information DB that is used to store reachable area information, which contains identifiers of other NEs in a range within which the optical signals can be transmitted from the own NE without using an REG. A FROM NE includes a path candidate searching unit that searches for a plurality of path candidates for transmitting optical signals from the FROM NE to a TO NE. The TO NE includes a path selecting unit that selects a path for transmitting optical signals from among a plurality of path candidates. The path selecting unit obtains the number of times for which the REG is used for each of the plurality of path candidates; and, based on each number of times that is obtained, selects a path for transmitting the optical signals. Full Article
and Layer 1 fast provisioning and right sizing of bandwidth for layer 2/3 By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Additional bandwidth is provisioned to layer 2/3 networks by initially provisioning optical wavelength channels to meet incremental needs for additional capacity. When bandwidth requirements grow large enough, a wavelength-sized channel is provisioned to meet the bandwidth needs, and the previously provisioned optical wavelength channels are freed up to be reused for additional growth. The optical wavelength channels may be channelized VLANs mapped to resizable optical channel data units such as ODUflex units. Full Article
and Optical line termination node and passive optical network By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An optical line termination node has a first connection arrangement for connecting a working fiber, a second connection arrangement for connecting a protection fiber, a transceiver arrangement having first primary link and a first secondary link, and protection switching means configured for being switched either in a working operating state or in a protection operating state. Full Article
and 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
and 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
and Providing digital data services in optical fiber-based distributed radio frequency (RF) communication systems, and related components and methods By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Optical fiber-based distributed communications systems that provide and support both RF communication services and digital data services are disclosed herein. The RF communication services and digital data services can be distributed over optical fiber to client devices, such as remote antenna units for example. In certain embodiments, digital data services can be distributed over optical fiber separate from optical fiber distributing RF communication services. In other embodiments, digital data services can be distributed over common optical fiber with RF communication services. For example, digital data services can be distributed over common optical fiber with RF communication services at different wavelengths through wavelength-division multiplexing (WDM) and/or at different frequencies through frequency-division multiplexing (FDM). Power distributed in the optical fiber-based distributed communications system to provide power to remote antenna units can also be accessed to provide power to digital data service components. Full Article
and 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
and Clock and data recovery unit and power control method therefor and PON system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT In the present invention, wasted power consumption caused when a clock and data recovery unit in an optical network unit in a PON system is activated from a power-saving state is reduced and rapid, secure communication is performed. A clock and data recovery unit includes a phase-locked loop that can be set to normal mode or power-saving mode and that includes a voltage-controlled oscillator and recovers a clock signal and a data signal from input signals. The clock and data recovery unit includes a reference clock multiplier circuit that multiplies a reference clock signal and outputs the multiplied reference clock signal; and a frequency training loop that includes the same voltage-controlled oscillator and performs synchronous oscillation training by the voltage-controlled oscillator using the reference clock multiplier circuit before the phase-locked loop transitions from power-saving mode to normal mode. Full Article
and Illumination device and method for embedding data symbols in a luminance output By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention relates to embedding data symbols of a data signal into a luminance output of an illumination device. The device includes a controller configured for receiving a first base pattern and a second base pattern within a frame period, and generating a shifted second pattern by phase shifting the second base pattern within the frame period with respect to the first base pattern in response to the data signal such that the data symbols are embedded in the luminance output of the device. The device also includes a first light source configured to generate a first luminance output in response to the first base pattern and a second light source configured to generate a second luminance output in response to the shifted second pattern. The first and second luminance outputs have different output spectra and the luminance output of the illumination device comprises both the first and second luminance outputs. With this approach, the short-time average light output of the illumination device remains constant, decreasing the visible flicker and allowing the use of lower switching frequencies relative to the prior art approaches. Full Article
and Network management system, repeater, and repeating method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A repeater includes a reception part configured to receive an optical signal transmitted by wavelength division multiplexing from a preceding repeater in a path from a source to a destination; a determination part configured to determine the channel allocation of the signal received by the reception part by determining a bit rate and a modulation technique with respect to each of channels in the received signal; and a detection part configured to detect a prohibited channel not to be included in the optical signal to be transmitted from the repeater, based on the channel allocation and a predetermined criterion. Full Article
and Cutting edge replacement type groove forming tool and end face groove forming method By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST A cutting insert (130) is formed to be rotationally symmetric with respect to an axis line (C3) of a height direction and to be planarly symmetric with respect to a virtual plane of the insert (VS1), an axis line (C2) of a traverse direction is gradually inclined toward the front of a rotational direction around which a workpiece (W) rotates moving toward a first traverse direction (C2A), an axis line (C1) of a longitudinal direction extends toward a lower surface side of an insert body (131) so as to approach a virtual plane of the tool moving toward a first longitudinal direction (C1A), and one corner portion (143C) in the other cutting edge (132B) is disposed further toward a first traverse direction (C2A) than one corner portion (143A) in one cutting edge (132A). Full Article
and Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor By www.freepatentsonline.com Published On :: Tue, 17 Feb 2015 08:00:00 EST Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. A cutting insert is adjusted by moving a resilient web with an adjusting screw. Full Article
and Cutting insert, cutting tool, and method of manufacturing machined product using the same By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A cutting insert of the present invention includes an upper surface; a lower surface; a side surface; a cutting edge which is located along an intersection of the upper surface and the side surface, and comprises a major cutting edge, a flat cutting edge, and a minor cutting edge located between the major cutting edge and the flat cutting edge; and a land part located along the cutting edge on the upper surface. The land part includes a minor cutting edge land portion located correspondingly to the minor cutting edge. The minor cutting edge land portion is inclined downward toward a central part of the upper surface. The present invention also provides a cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool. Full Article
and Severing and beveling tool By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A tool for both severing the end of a pipe and beveling the cut end includes a spiral cutting mill having an elongate end received in the bore of a frustoconical shell cutter. The shell cutter is locked for rotation with the cutting mill such that a single tool has two cutting surfaces, one for severing a length of pipe and one for beveling the outer edge thereof. Full Article
and Sintered cubic boron nitride compact and sintered cubic boron nitride compact tool By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST It is an object of the present invention to provide a sintered cBN compact having excellent wear resistance and fracture resistance even in machining centrifugally cast iron having a property of being difficult to machine, and to provide a sintered cBN compact tool. A sintered cBN compact of the present invention contains 20% by volume or more and 65% by volume or less of cBN and, as a binder, 34% by volume or more and less than 80% by volume of Al2O3, at least one selected from the group consisting of nitrides, carbides, carbonitrides, borides, and boronitrides of Zr and solid solutions thereof (hereinafter, referred to as “X”), and ZrO2, the total amount of X and ZrO2 being 1.0% by volume or more and 6.0% by volume or less, the volume ratio of ZrO2 to Al2O3, ZrO2/Al2O3, being 0.010 or more and less than 0.100, in which the ratio Itetragonal ZrO2(101)/IαAl2O3(110) is 0.1 or more and 3 or less, where Itetragonal ZrO2(101) is the intensity of the (101) plane of tetragonal ZrO2 and IαAl2O3(110) is the intensity of the (110) plane of αAl2O3 among X-ray diffraction peaks of the sintered cBN compact. Full Article
and 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
and Cutting insert and cutting tool By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST A cutting insert is capable of boring or drilling without the formation of a prepared hole in a workpiece. A cutting edge includes a cutting edge portion extending from the outer peripheral side to the tool center axis side of a cutting tool body when the cutting insert is attached to a mounting seat, reaching a first plane including the tool center axis, and traversing from one side to the other side of a second plane which is perpendicular to the first plane and which includes the tool center axis. Full Article
and 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
and Cutting insert and shim for milling cutters By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT A cutting tool includes a polygonal cutter body and an end cutting insert for chipforming machining mounted in a serrated seat disposed at an axial end of the cutter body. A bottom surface of the insert has a plurality of parallel serrations meshing with corresponding serrations of the seat. The serrations extend transversely relative to the longitudinal axis for resisting axially rearward cutting forces applied to the insert. The seat is formed directly by the cutter body, or by a shim disposed beneath the insert. The shim is provided with a downward lip to transfer axial forces to the cutter body. The insert can be square or triangular, wherein the serrations are in the form of a plurality of sets of parallel serrations disposed adjacent respective cutting edges. Full Article
and Cutting insert, cutting tool, and method of manufacturing machined product using them By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A cutting insert includes an upper surface; a lower surface; a side surface which is connected to each of the upper surface and the lower surface and includes a first side surface, a second side surface and a third side surface being adjacent to each other in order; an upper cutting edge including an upper major cutting edge located at an intersection of the upper surface and the first side surface, and an upper flat cutting edge located closer to the upper major cutting edge in an intersection of the upper surface and the second side surface; and a lower cutting edge including a lower major cutting edge located at an intersection of the lower surface and the third side surface, and a lower flat cutting edge located closer to the lower major cutting edge in an intersection of the lower surface and the second side surface. The second side surface comprises an upper flank surface connected to the upper flat cutting edge, and a lower flank surface connected to the lower flat cutting edge. As going from the upper surface to the lower surface, the upper flank surface is closer to a central axis extending between the upper surface and the lower surface and the lower flank surface is separated from the central axis in a side sectional view. A cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided. Full Article
and 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
and Cutting insert, cutting tool, and method of manufacturing machined product using the same By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A cutting insert having excellent chip discharge performance is provided. The cutting insert (1) according to an embodiment of the present invention includes an upper surface (2), a lower surface (3), a side surface (4) connected to the upper surface (2) and the lower surface (3), and a cutting edge (5) which is located at an intersection of the upper surface (2) and the side surface (4), and includes a major cutting edge (51) and a flat cutting edge (52). The major cutting edge (51) includes a major cutting section (512) which has a concave shape and is inclined downward as a straight line connecting both ends thereof is away from the flat cutting edge (52) in a side view. A cutting tool (11) according to an embodiment of the present invention includes the cutting insert (1) and a holder (10) configured to attach the cutting insert (1) thereto. Full Article
and Cutting insert and cutting tool By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT An upper surface of a cutting insert includes a first rake face and a second seating surface. A lower surface of the cutting insert includes a second rake face and a first seating surface. The cutting edge includes a first cutting edge portion formed at a crossing edge line portion between the first rake face and a flank face and a second cutting edge portion formed at a crossing edge line portion between the second rake face and the flank face. The first cutting edge portion and the crossing edge line portion between the first seating surface and the flank face are positioned opposite each other. The second cutting edge portion and the crossing edge line portion between the second seating surface and the flank face are positioned opposite each other. Full Article
and Cutting insert, cutting tool, and method of manufacturing machined product using the same By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A cutting insert according to an embodiment of the present invention includes an upper surface; a lower surface; a side surface located between the upper surface and the lower surface; at least one concave part extending in a thickness direction in the side surface, and having one end thereof located at the upper surface; and a cutting edge which is located at an intersection region of the upper surface and the side surface, and is divided into a plurality of divided cutting edges with the at least one concave part interposed therebetween. The upper surface includes a first raised part located inwardly of the at least one concave part, and a plurality of second raised parts respectively located inwardly of the plurality of divided cutting edges. The plurality of the second raised parts are located inward compared to one end of the first raised part close to the cutting edge in a top view. A cutting tool including the cutting insert, and a method of manufacturing a machined product using the cutting tool are also provided. Full Article
and Cutting insert, cutting tool, and method of manufacturing machined product using them By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A cutting insert according to an embodiment of the invention includes: an upper surface; a lower surface; a side surface which is connected to each of the upper surface and the lower surface, and includes a first side surface and a second side surface adjacent to each other; and a cutting edge including a major cutting edge located at an intersection of the upper surface and the first side surface, and a minor cutting edge located at an intersection of the upper surface and the second side surface. The upper surface includes a rake surface which is located along the major cutting edge, and is inclined downward as the upper surface separates from the major cutting edge. The second side surface includes a second upper constraining surface and a second lower constraining surface in order as the second side surface goes from the upper surface to the lower surface. The second upper constraining surface is inclined inward at an inclination angle α1 with reference to a central axis extending between the upper surface and the lower surface. The second lower constraining surface is continuous with the second upper constraining surface, and is inclined outward at an inclination angle α2 with reference to the central axis. A cutting tool with the cutting inserts, and a method of manufacturing a machined product by using the cutting tool are also provided. Full Article
and Cutting insert and cutting tool By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A cutting insert is provided with a plurality of cutting portions formed at the intersection portion of each end surface and a peripheral surface. Each cutting portion includes first and second cutting edges. First corners and second corners which differ in their internal angles are alternately formed in each end surface. An internal angle of the first corner is smaller than an internal angle of the second corner. Each first cutting edge has a portion extending to approach the median plane as a distance from a corresponding first corner increases. A first side surface portion extending on the peripheral surface from each first cutting edge forms an insert internal obtuse angle, and a second side surface portion extending on the peripheral surface from each second cutting edge forms an insert internal acute angle. Full Article
and Roughing end mill and insert for a roughing end mill By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A roughing end mill comprises an end mill body and plural inserts which are placed on an outer circumference of the end mill body with a predetermined distance apart from each other in the axial direction of the end mill body, wherein the plural inserts form plural insert rows which are provided in a circumferential direction of the end mill body, where the inserts are offset in the axial direction from each other between the different insert rows which are adjacent in the circumferential direction. The inserts have waveform cutting edges which face towards an outer circumferential side of the end mill body. One insert of one insert row and an insert of another insert row are positioned such that the waveform cutting edges of each of these inserts make up a waveform cutting edge row whose phase is continuous on a rotation trajectory around the axis. Full Article
and Cutting insert, cutting body and clamping mechanism of a cutting tool assembly for chip removal By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A cutting insert (14) is formed with an insert aperture (32) opening out to insert top and bottom surfaces (14A, 14B) of the cutting insert (14). In a plan view of the insert top surface (14A), the cutting insert (14) and the insert aperture (32) both have oblong shapes which are elongated along a common insert longitudinal axis (AIL). The aperture (32) includes first and second side surfaces (32A1, 32A2) which each extend along the insert longitudinal axis (AIL), and aperture first and second end surfaces (32B1, 32B2) which each extend transverse relative to the insert longitudinal axis (AIL). At least one of the aperture first and second end surfaces (32B1, 32B2) is formed with a clamping lip (32C1, 32C2). Full Article
and Cutting insert having curved ramps for insertion into a tool holder, cutting tool and method of assembly By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A cutting tool used for grooving and turning operations where a cutting insert is resiliently securable in a holder blade. The cutting insert includes an insert central lower surface located between, and recessed with respect to, two insert lower component surfaces, each having an insert lower abutment surface. At least one of the two insert lower component surfaces includes an insert inner curved ramp extending from its insert lower abutment surface to the adjacent insert lower intermediate surface and at least the other of the two insert lower component surfaces includes an insert outer curved ramp extending from its insert lower abutment surface to an adjacent end surface. Full Article
and Indexable, double-sided cutting insert and cutting tool including such an insert By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A cutting insert includes a first surface having a first rake surface, a second surface having a second rake surface, a central axis of the insert extending between the first and second surfaces, four side surfaces extending between the first surface and the second surface, and four cutting edges. Each cutting edge has a first cutting edge component and a second cutting edge component and being associated with a respective one of the first and second surfaces and with two respective ones of the side surfaces. The first rake surface is identical to the second rake surface and the first rake surface and the second rake surface are oriented at a 90° angle to each other about the central axis of the insert. Full Article
and Hybrid digital and channel microfluidic devices and methods of use thereof By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention provides a hybrid digital and channel microfluidic device in the form of an integrated structure in which a droplet may be transported by a digital microfluidic array and transferred to a microfluidic channel. In one aspect of the invention, a hybrid device comprises a first substrate having a digital microfluidic array capable of transporting a droplet to a transfer location, and a second substrate having a microfluidic channel. The first and second substrates are affixed to form a hybrid device in which an opening in the microfluidic channel is positioned adjacent to the transfer location, so that a droplet transported to the transfer location contacts the channel opening and may enter the channel. The invention also provides methods of performing separations using a hybrid digital and channel microfluidic device and methods of assembling a hybrid digital microfluidic device. Full Article
and Analyte monitoring devices and methods therefor By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Method and apparatus for performing a discrete glucose testing and bolus dosage determination including a glucose meter with bolus calculation function are provided. Full Article
and 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
and Apparatus and method of reacting polymers passing through metal ion chelated resin matrix to produce injectable medical devices By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present disclosure relates to an apparatus and process for forming medical devices from an injectable composition. The apparatus includes a supply assembly configured to maintain and selective dispense a first precursor and a second precursor, a mixing assembly configured to mix the first and second precursors, and at least one catalyzing element including a transition metal ion to aid in the polymerization of the first and second precursors. The process includes dispensing a volume of the first precursor and a volume of the second precursor into a mixing assembly and mixing the first and second precursors. The first and second precursors each possess a core and at least one functional group known to have click reactivity with each other. The mixed precursors are contacted with a transition metal catalyst to produce a flowable composition for use as a medical device. Full Article
and Catalyzed SCR filter and emission treatment system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. Full Article
and Catalyzed SCR filter and emission treatment system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. Full Article
and Catalyzed SCR filter and emission treatment system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided is a catalyst article for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia. Full Article
and Mass transfer packing element and method of making the same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A ceramic mass transfer packing element that includes a planar end surface which intersects an internal wall's geometric plane at an acute angle is disclosed. A process for making the packing element and an apparatus that uses the packing element are also disclosed. Full Article
and Biosensors and bio-measurement systems using the same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A biosensor is provided. The biosensor is used to sense a biological sample and has a code representing features of the biosensor. The biosensor includes a substrate and a conductive layer. The conductive layer is disposed on a first side of the substrate and includes a first conductive loop and a second conductive loop. The first conductive loop is formed between a first node and a second node and has a first impedance. The second conductive loop is formed between the second node and a third node and has a second impedance. The code is determined according to a comparison result between the second impedance and the first impedance. Full Article
and Apparatus for closed tube sampling and open tube sampling for automated clinical analyzers By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A centrifuge to which sample tubes can be introduced while the centrifuge is in motion. The centrifuge comprises a carousel having an upper portion and a lower portion. The upper portion of the carousel has a plurality of positions for sample tubes for a centrifugation operation, a plurality of drive mechanisms attached to the upper portion of the carousel, a movable element mounted upon each drive mechanism, the movable element capable of traversing the length of the drive mechanism when the drive mechanism is actuated, a sample tube-holding assembly comprising a sample tube holder and a bearing attached to each movable element, and at least one balancing element capable of contributing to a force vector that cancels an imbalance vector generated by rotation of the centrifuge. Full Article
and Microfluidic devices with removable cover and methods of fabrication and application By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention includes microfluidic systems having a microfabricated cavity that may be covered with a removable cover, where the removable cover allows at least part of the opening of the microfabricated cavity to be exposed or directly accessed by an operator. The microfluidic systems comprise chambers, flow and control channels formed in elastomeric layers that may comprise PDMS. The removable cover comprises a thermoplastic base film bonded to an elastomer layer by an adhesive layer. When the removable cover is peeled off, the chamber is at least partially open to allow sample extraction from the chamber. The chamber may have macromolecular crystals formed inside or resulting contents from a PCR reaction. The invention also includes a method for making vias in elastomeric layers by using the removable cover. The invention further includes methods and devices for peeling the peelable cover or a removable component such as Integrated Heater Spreader. Full Article
and Bioprinting station, assembly comprising such bioprinting station and bioprinting method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Bioprinting station (1) comprising:—a Bioprinting device (4) adapted to deposit a pattern of biological material (2) onto an area of interest (3a) of a substrate (3),—an imaging system (15) adapted to acquire an image of the substrate (3) and to reveal on the acquired image the area of interest (3a) with respect to a remaining part (3b) of the substrate (3), the acquired image of the substrate (3) being processed so as to detect the revealed area of interest (3a) on the acquired image and to determine the pattern corresponding to the area of interest (3a) detected on the acquired image. Full Article
and Apparatus, system, and method for collecting a target material By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT This disclosure is directed to an apparatus, system and method for retrieving a target material from a suspension. A system includes a processing vessel, such as an Eppendorf tube, a syringe or a test tube, and a collector. The collector is sized and shaped to fit into a primary vessel, such as a test tube. The collector funnels the target material from the suspension through a cannula and into the processing vessel. The cannula extends into a cavity at a first end of the collector that holds the processing vessel. The collector includes a funnel at a second end in fluid communication with the cannula. In one implementation, the processing vessel includes at least one displacement fluid to be expelled, such that the at least one displacement fluid pushes the target material into the collector. Full Article
and Sample container with sensor receptacle and methods of use By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Devices and methods are described herein that are configured for use in laboratory testing, such as, for example, during a procedure including the monitoring and detection of chemical reactions. For example, the systems and devices described herein can be used during a procedure to monitor and detect polymerase chain reactions (PCR). In some embodiments, a sample container includes a container body that defines an interior volume and has an open end in fluid communication with the interior volume. A cap is sealingly engageable with the open end of the container body. The cap defines a receptacle that is configured to extend within a portion of the interior volume of the container body when the cap is sealingly engaged thereto. The receptacle can receive therein a sensor, such as, a temperature sensor that can monitor the temperature of a sample material disposed within the container body. Full Article
and Biological fluid sampling and storage apparatus for remote use By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An apparatus for sampling and storing biological fluids from a human or animal subject is provided. In one embodiment of the present disclosure, the apparatus includes a main body, lancet carrier or hub, lancet, lancet trigger, capillary tube, and sample compartments for collecting and storing dried blood and other bodily fluids. The lancet hub supports a lancet and provides for moving the lancet longitudinally between a first retracted position and a second extended position. The device includes a capillary tube having an internal diameter sized to draw and retain fluid from a contacted source using capillary action. The main body of the apparatus further includes a sample compartment for holding sampling and storage materials. In at least one embodiment of the present disclosure, the sample compartment can be accessed by lifting sample compartment lid. Also included is a new “fan” or “daisy” shaped collection material format for use in collecting and preserving samples. Full Article