mhurhangee/ep-ind-claims huggingface dataset:
An apparatus (100; 200; 300; 400) comprising: an optical waveguide; a photonic crystal comprising a dielectric material, the photonic crystal located on an exterior-facing surface of the optical waveguide; wherein the photonic crystal comprises a first surface including an array of periodic features on or within the dielectric material, the array being periodic in at least two dimensions and including an effective dielectric permittivity different from the surrounding dielectric material; wherein the periodic features define at least a two-dimensional pattern including a specified lattice constant and a specified fill factor, the periodic features configured to extract, through the photonic crystal via leaky-mode coupling, a desired portion of optical energy propagating within the waveguide, the desired portion determined at least in part by the specified lattice constant; and wherein the features comprise cavities within the dielectric material of the photonic crystal or protruding bars formed out of the dielectric material, and wherein the array of periodic features includes a first region having a first lattice constant and a first fill factor, the first region configured to extract a portion of optical energy in a first range of wavelengths, from the waveguide, and a second region having a second lattice constant and a second fill factor, the second region configured to extract a portion of optical energy in a second range of wavelengths, from the waveguide. an optical waveguide; a photonic crystal comprising a dielectric material, the photonic crystal located on an exterior-facing surface of the optical waveguide; wherein the photonic crystal comprises a first surface including an array of periodic features on or within the dielectric material, the array being periodic in at least two dimensions and including an effective dielectric permittivity different from the surrounding dielectric material; wherein the periodic features define at least a two-dimensional pattern including a specified lattice constant and a specified fill factor, the periodic features configured to extract, through the photonic crystal via leaky-mode coupling, a desired portion of optical energy propagating within the waveguide, the desired portion determined at least in part by the specified lattice constant; and wherein the features comprise cavities within the dielectric material of the photonic crystal or protruding bars formed out of the dielectric material, and wherein the array of periodic features includes a first region having a first lattice constant and a first fill factor, the first region configured to extract a portion of optical energy in a first range of wavelengths, from the waveguide, and a second region having a second lattice constant and a second fill factor, the second region configured to extract a portion of optical energy in a second range of wavelengths, from the waveguide.
A method for a self-correcting wavelength collision avoidance system, the method comprising the steps of: detecting a wavelength collision in a network where multiple TDMA systems operate over a common laser transmitter; identifying a pair of optical network terminals whose transmitter laser wavelengths are closer together than several times a laser chirp of these transmitters that transmit colliding wavelengths from the pair of optical network terminals; and recovering from the wavelength collision, the step of recovering including re-adjusting wavelengths of the pair of optical network terminals that cause collisions to eliminate the wavelength collision by placing a wavelength of a laser of each optical network terminal device in different wavelength bins whose widths are greater than several times the laser chirp so that lasers in different wavelength bins do not optically beat with each other, wherein re-adjusting includes tuning remotely a wavelength of one of the pair of optical network terminals to a different wavelength bin. detecting a wavelength collision in a network where multiple TDMA systems operate over a common laser transmitter; identifying a pair of optical network terminals whose transmitter laser wavelengths are closer together than several times a laser chirp of these transmitters that transmit colliding wavelengths from the pair of optical network terminals; and recovering from the wavelength collision, the step of recovering including re-adjusting wavelengths of the pair of optical network terminals that cause collisions to eliminate the wavelength collision by placing a wavelength of a laser of each optical network terminal device in different wavelength bins whose widths are greater than several times the laser chirp so that lasers in different wavelength bins do not optically beat with each other, wherein re-adjusting includes tuning remotely a wavelength of one of the pair of optical network terminals to a different wavelength bin.
A method for identifying the sequence of fibers in a multi-fiber optical cable, the multi-fiber optical cable comprising a plurality of fibers, each fiber being connected between a front-port of a plurality of front-ports (F1-F12) and an end-port of a plurality of end-ports (E1-E12); the method comprising: for each front-port of the plurality of front-ports (F1-F12), collecting an OTDR trace (Tl-T12); and characterized in that the method comprises comparing with each other, via at least a processor, the OTDR traces (T1-T12) as associated with their corresponding front-port; each of the OTDR traces (T1-T12) corresponding to a fiber of the plurality of fibers and comprising an identifying marker of a receiver-fiber connected to a corresponding fiber; for each front-port, based on the OTDR traces (T1-T12), determining the corresponding end-port of the fiber connected to the corresponding front-port thereby determining the sequence of the multi-fiber optical cable. for each front-port of the plurality of front-ports (F1-F12), collecting an OTDR trace (Tl-T12); and characterized in that the method comprises comparing with each other, via at least a processor, the OTDR traces (T1-T12) as associated with their corresponding front-port; each of the OTDR traces (T1-T12) corresponding to a fiber of the plurality of fibers and comprising an identifying marker of a receiver-fiber connected to a corresponding fiber; for each front-port, based on the OTDR traces (T1-T12), determining the corresponding end-port of the fiber connected to the corresponding front-port thereby determining the sequence of the multi-fiber optical cable.
A display and detection system comprising: an image sensor; a display screen; and an antireflection system covering the display screen and the image sensor, characterized in that the antireflection system comprises an electrically-controllable rectilinear polarizer. an image sensor; a display screen; and an antireflection system covering the display screen and the image sensor, characterized in that the antireflection system comprises an electrically-controllable rectilinear polarizer.
A sealing assembly comprising: a housing adapted to be arranged on and cover an end of a first component of a robot and comprising a circumferential coupling section; a flange adapted to be arranged on and cover an end of a second component of the robot that is coaxially rotatable relative to the first component, so that at least the circumferential coupling section of the housing abuts and surrounds the flange coaxially; and an elastic sealing ring comprising: a coupling portion coupled to the circumferential coupling section; and a sealing portion arranged between the housing and the flange with an interference fit, the sealing portion is of a shape configured to match shapes of the housing and the flange to enable a seamless transition from the housing to the flange. a housing adapted to be arranged on and cover an end of a first component of a robot and comprising a circumferential coupling section; a flange adapted to be arranged on and cover an end of a second component of the robot that is coaxially rotatable relative to the first component, so that at least the circumferential coupling section of the housing abuts and surrounds the flange coaxially; and an elastic sealing ring comprising: a coupling portion coupled to the circumferential coupling section; and a sealing portion arranged between the housing and the flange with an interference fit, the sealing portion is of a shape configured to match shapes of the housing and the flange to enable a seamless transition from the housing to the flange. a coupling portion coupled to the circumferential coupling section; and a sealing portion arranged between the housing and the flange with an interference fit, the sealing portion is of a shape configured to match shapes of the housing and the flange to enable a seamless transition from the housing to the flange.
Method for sum-frequency generation of light pulses, where light pulses are directed into a second-order nonlinear medium and satisfy the phase-matching conditions, the sum-frequency generation takes place by directing light pulses to an input side of the second-order nonlinear medium in pairs sequentially, one after another, so that: - a first light pulse of the pair passes through the second-order nonlinear medium, and at this time the phase-matching conditions are not satisfied in the second-order nonlinear medium and there is no nonlinear interaction, - the first light pulse of the pair passed though said second-order nonlinear medium is returned back by an optical scheme as returned back light pulse and directed to the same input side of the nonlinear medium, - the returned back light pulse of the pair overlaps with a second light pulse of the same pair, which propagates through the second-order nonlinear medium for the first time, satisfying the phase-matching condition between these pulses, - by satisfying the phase-matching condition between the returned back light pulse and the second pulse of the same pair passing for the first time through the second-order nonlinear medium, an efficient nonlinear interaction takes place, and the light pulses (1', 2) of each pair are combined into a sum-frequency light pulse, wherein a time interval between light pulses in the pair is predetermined and is equal to a time needed for the first light pulse of the pair to pass through the second-order medium, starting at an input side, to be returned back and directed to the same input side of the second-order nonlinear medium as returned back light pulse. - a first light pulse of the pair passes through the second-order nonlinear medium, and at this time the phase-matching conditions are not satisfied in the second-order nonlinear medium and there is no nonlinear interaction, - the first light pulse of the pair passed though said second-order nonlinear medium is returned back by an optical scheme as returned back light pulse and directed to the same input side of the nonlinear medium, - the returned back light pulse of the pair overlaps with a second light pulse of the same pair, which propagates through the second-order nonlinear medium for the first time, satisfying the phase-matching condition between these pulses, - by satisfying the phase-matching condition between the returned back light pulse and the second pulse of the same pair passing for the first time through the second-order nonlinear medium, an efficient nonlinear interaction takes place, and the light pulses (1', 2) of each pair are combined into a sum-frequency light pulse, wherein a time interval between light pulses in the pair is predetermined and is equal to a time needed for the first light pulse of the pair to pass through the second-order medium, starting at an input side, to be returned back and directed to the same input side of the second-order nonlinear medium as returned back light pulse.
Heat exchanger comprising: - a heat exchange assembly which defines first circulation channels for the circulation of a gas to be cooled and second circulation channels for the circulation of a cooling liquid, and - two gas intake and gas outlet collectors (16, 18, 218), respectively, which are assembled on two open faces (52, 54) of the heat exchange assembly, respectively, in which the first circulation channels open, characterized in that a first collector is crimped to the heat exchange assembly and the second collector (18; 218) is soldered or welded to the heat exchange assembly, the gas intake collector being crimped to the heat exchange assembly and the gas outlet collector (18, 218) being welded or soldered to the heat exchange assembly. - a heat exchange assembly which defines first circulation channels for the circulation of a gas to be cooled and second circulation channels for the circulation of a cooling liquid, and - two gas intake and gas outlet collectors (16, 18, 218), respectively, which are assembled on two open faces (52, 54) of the heat exchange assembly, respectively, in which the first circulation channels open,
A method of storing or preserving one or more live human stem cells in stasis, the method comprising: (i) contacting a non-gelatinous form of a medium with the one or more human stem cells to produce a fluid stem cell composition; (ii) changing the temperature of the medium to cause the medium to change from the non-gelatinous form to the gelatinous form and thereby produce a gelled stem cell composition; and (iii) storing the gelled stem cell composition with the human stem cells in stasis; wherein the medium comprises: - an aqueous vehicle comprising nutrients for maintaining the viability of stem cells; - particles of a synthetic thermo-responsive copolymer dispersed in the aqueous vehicle; wherein the medium is capable of undergoing a change between a non-gelatinous form and a gelatinous form in response to a change in temperature and, in the non-gelatinous form, the medium comprises a colloidally stable aqueous dispersion of the particles of the synthetic thermo-responsive copolymer and, in the gelatinous form, the medium is in the form of a gel that provides a scaffold or matrix capable of accommodating stem cells in stasis; wherein the one or more human stem cells are in stasis in that no differentiation and no proliferation of said stem cells takes place; and wherein the thermo-responsive copolymer is a block co-polymer defined by Formula B: wherein P 1 represents a polymeric component derived from a monomer M 1 and P 2 represents a substantially aqueously insoluble polymeric component derived from an aqueously soluble monomer M 2; and wherein: the P 1 polymeric component is hydrophilic relative to the P 2 polymeric component; and the P 1 polymeric component is less thermo-responsive than the P 2 polymeric component and the human stem cells are pluripotent human stem cells. (i) contacting a non-gelatinous form of a medium with the one or more human stem cells to produce a fluid stem cell composition; (ii) changing the temperature of the medium to cause the medium to change from the non-gelatinous form to the gelatinous form and thereby produce a gelled stem cell composition; and (iii) storing the gelled stem cell composition with the human stem cells in stasis; - an aqueous vehicle comprising nutrients for maintaining the viability of stem cells; - particles of a synthetic thermo-responsive copolymer dispersed in the aqueous vehicle; the P 1 polymeric component is hydrophilic relative to the P 2 polymeric component; and the P 1 polymeric component is less thermo-responsive than the P 2 polymeric component and the human stem cells are pluripotent human stem cells.
A surgical instrument, comprising: an elongate shaft; a control member received for movement in the elongate shaft; an end effector operatively configured to actuate in response to a received control motion from the control member; a handle proximally attached to the elongate shaft to position the end effector through a surgical opening; a control trigger attached to the handle and coupled to the control member, the control trigger operatively configured to move from a first position to a second position to produce the control motion upon a user input; characterized by control circuitry operatively configured to generate an enabling signal; and an electrically powered actuator in the handle biased into locking contact with the control trigger in the first position to prevent movement to the second position; wherein the electrically powered actuator is maintained in a configuration in which the control trigger is unlocked by the enabling signal. an elongate shaft; a control member received for movement in the elongate shaft; an end effector operatively configured to actuate in response to a received control motion from the control member; a handle proximally attached to the elongate shaft to position the end effector through a surgical opening; a control trigger attached to the handle and coupled to the control member, the control trigger operatively configured to move from a first position to a second position to produce the control motion upon a user input; characterized by control circuitry operatively configured to generate an enabling signal; and an electrically powered actuator in the handle biased into locking contact with the control trigger in the first position to prevent movement to the second position; wherein the electrically powered actuator is maintained in a configuration in which the control trigger is unlocked by the enabling signal.
A method for reading an encoded symbol comprising: assigning first and second timeout variables to first and second decoding threads, respectively, where the first and second timeout variables are different and the first and second decoding threads are unsuccessful if an elapsed time exceeds the first and second timeout variables respectively, and where the first and second decoding threads are terminated, respectively, upon elapse of the respective timeout, the elapsed time being measured from a start of an attempt to decode the encoded symbol using the first and second decoding threads, respectively; acquiring at least one image of the encoded symbol; attempting to decode the encoded symbol from the at least one image using the first decoding thread while substantially simultaneously and asynchronously attempting to decode the encoded symbol from the at least one image using the second decoding thread, wherein the first decoding thread attempts to decode a first symbol type and the second decoding thread attempts to decode a second symbol type; and reporting a result when one of the first decoding thread and the second decoding thread is successful. assigning first and second timeout variables to first and second decoding threads, respectively, where the first and second timeout variables are different and the first and second decoding threads are unsuccessful if an elapsed time exceeds the first and second timeout variables respectively, and where the first and second decoding threads are terminated, respectively, upon elapse of the respective timeout, the elapsed time being measured from a start of an attempt to decode the encoded symbol using the first and second decoding threads, respectively; acquiring at least one image of the encoded symbol; attempting to decode the encoded symbol from the at least one image using the first decoding thread while substantially simultaneously and asynchronously attempting to decode the encoded symbol from the at least one image using the second decoding thread, wherein the first decoding thread attempts to decode a first symbol type and the second decoding thread attempts to decode a second symbol type; and reporting a result when one of the first decoding thread and the second decoding thread is successful.
A steering control device configured to control a steering system that changes a steering torque which is required for steering of a steering wheel using a motor torque which is applied from a motor, the steering control device comprising a target torque generator configured to generate a target torque which is a target value of the motor torque; and a control signal generator configured to generate a control signal for controlling the motor such that the motor torque corresponding to the target torque is generated, characterized in that the target torque generator includes a pre-adjustment axial force calculator configured to calculate a pre-adjustment axial force corresponding to an axial force acting on a turning shaft to which turning wheels are connected, a first axial force calculator configured to calculate a first axial force by adjusting the pre-adjustment axial force using a vehicle speed, a second axial force calculator configured to calculate a second axial force by adjusting the pre-adjustment axial force without using the vehicle speed, a post-adjustment axial force calculator configured to calculate a post-adjustment axial force based on the first axial force and the second axial force, and a target torque calculator configured to calculate the target torque based on the post-adjustment axial force, and wherein the post-adjustment axial force calculator is configured to set a proportion of the first axial force contributing to the post-adjustment axial force to be smaller when a state of the vehicle speed is abnormal than when the state of the vehicle speed is normal. a target torque generator configured to generate a target torque which is a target value of the motor torque; and a control signal generator configured to generate a control signal for controlling the motor such that the motor torque corresponding to the target torque is generated, characterized in that the target torque generator includes a pre-adjustment axial force calculator configured to calculate a pre-adjustment axial force corresponding to an axial force acting on a turning shaft to which turning wheels are connected, a first axial force calculator configured to calculate a first axial force by adjusting the pre-adjustment axial force using a vehicle speed, a second axial force calculator configured to calculate a second axial force by adjusting the pre-adjustment axial force without using the vehicle speed, a post-adjustment axial force calculator configured to calculate a post-adjustment axial force based on the first axial force and the second axial force, and a target torque calculator configured to calculate the target torque based on the post-adjustment axial force, and wherein the post-adjustment axial force calculator is configured to set a proportion of the first axial force contributing to the post-adjustment axial force to be smaller when a state of the vehicle speed is abnormal than when the state of the vehicle speed is normal.