Abstract: A filter mask for filtering air inhaled and exhaled from the mouth and nostrils while providing a secure fit and comfort to the wearer is provided. The filter mask has upper and lower edges which are provided with at least one malleable stiffener for conforming to the shape of the wearer's nose and cheek area and/or the lower jaw and chin area. In some embodiments, the filter masks further comprises a malleable stiffening member configured to conform the filter material to at least a chin portion and a jaw portion of the face. In some embodiments, the malleable stiffener can have a bend portion, which allows the wearer of the mask to know which part, center and side of the mask is to be properly placed on the nose and cheek area. The masks provide excellent filtration and provide a secure and comfortable fit to the wearer.

Abstract: A filter mask for filtering air inhaled and exhaled from the mouth and nostrils while providing a secure fit and comfort to the wearer is provided. The filter mask has upper and lower edges which are provided with at least one malleable stiffener for conforming to the shape of the wearer's nose and cheek area and/or the lower jaw and chin area. In some embodiments, the filter masks further comprises a malleable stiffening member configured to conform the filter material to at least a chin portion and a jaw portion of the face. In some embodiments, the malleable stiffener can have a bend portion, which allows the wearer of the mask to know which part, center and side of the mask is to be properly placed on the nose and cheek area. The masks provide excellent filtration and provide a secure and comfortable fit to the wearer.

Abstract: The invention relates to a system and method of communication between optical transceivers in an optical WDM network, wherein a broad-band modulation of optical signals in a primary frequency band is utilized for transmitting primary high-speed data, while a plurality of relatively low-frequency in-band subcarriers is used to modulate the optical signals to transmit secondary data between network nodes, wherein the plurality of low-frequency subcarriers lie at least in part within the primary frequency band.

Abstract: Methods, systems and software are disclosed for automated Measurement of Video Quality parameters. The system includes a static Test Pattern provided either in form of a Test Pattern File, converted via a standard playout device (test source) into analog or digital test signal and supplied to the input of a System Under Test, or in form of a Reflectance Chart installed before the front-end device of the System Under Test, such as TV camera. The system also includes a video capture device connected to the back-end device of the System Under Test, e.g. to the output of system decoder/player. A Video Quality Analyzer processes the captured video data and generates a detailed Analysis Report.

Abstract: Systems and methods are disclosed to perform automated audio visual (AV) delay measurement for a system under test (SUT) by generating a dynamic AV test pattern to drive a source display device and one or more destination video display devices; detecting video output through at least one light sensor coupled to the one or more destination video display devices; digitizing the light sensor output; and performing multi-channel delay parameters analysis.

Abstract: A system to perform automated audio visual (AV) delay measurement for a system under test (SUT) includes a test pattern generator to generate a dynamic AV test pattern and connected to a source display device and to one or more destination video display devices; at least one light sensor coupled to the one or more destination video display devices; an AV capture device having video inputs connected to the light sensors; and an AV delay analyzer coupled to the AV capture device to perform multi-channel delay parameters analysis.

Abstract: Systems and methods are disclosed for testing video quality by generating a stress tracker test pattern with one or more moving zone plates and one or more stamps; determining compression quality scores for encoder resources spent at predetermined levels of compression (stress); and analyzing the test pattern and generating a Compression Stress Response profile.

Abstract: Methods, systems and software are disclosed for automated Measurement of Video Quality parameters. The system includes a static Test Pattern provided either in form of a Test Pattern File, converted via a standard playout device (test source) into analog or digital test signal and supplied to the input of a System Under Test, or in form of a Reflectance Chart installed before the front-end device of the System Under Test, such as TV camera. The system also includes a video capture device connected to the back-end device of the System Under Test, e.g. to the output of system decoder/player. A Video Quality Analyzer processes the captured video data and generates a detailed Analysis Report.

Abstract: Methods, systems and software are disclosed for automated Measurement of Video Quality parameters. The system includes a static Test Pattern provided either in form of a Test Pattern File, converted via a standard playout device (test source) into analog or digital test signal and supplied to the input of a System Under Test, or in form of a Reflectance Chart installed before the front-end device of the System Under Test, such as TV camera. The system also includes a video capture device connected to the back-end device of the System Under Test, e.g. to the output of system decoder/player. A Video Quality Analyzer processes the captured video data and generates a detailed Analysis Report.

Abstract: Systems and methods are disclosed to perform automated audio visual (AV) delay measurement for a system under test (SUT) by generating a dynamic AV test pattern to drive a source display device and one or more destination video display devices; detecting video output through at least one light sensor coupled to the one or more destination video display devices; digitizing the light sensor output; and performing multi-channel delay parameters analysis.

Abstract: A system to perform automated audio visual (AV) delay measurement for a system under test (SUT) includes a test pattern generator to generate a dynamic AV test pattern and connected to a source display device and to one or more destination video display devices; at least one light sensor coupled to the one or more destination video display devices; an AV capture device having video inputs connected to the light sensors; and an AV delay analyzer coupled to the AV capture device to perform multi-channel delay parameters analysis.

Abstract: Ultrasonically determining flow parameters of a fluid (12) flowing through a passage (14), using far-field analysis. Includes: (a) acquiring near-field amplitude and phase change values of ultrasound waves transmitted (30) into, propagating through, and scattered (32) by, the flowing fluid; (b) determining far-field scattering amplitude distribution, A(?, ?f), as two-dimensional function of scattering angle, ?, and Doppler frequency shift, ?f, from the acquired near-field amplitude and phase change values; and (c) determining flow parameters (peak velocity, velocity distribution, flow rate) of the flowing fluid, from the scattering amplitude distribution. Implementable using ‘clamp-on’ techniques including ultrasound wave transmitter and ultrasound wave detector array, clamped on, in an oppositely facing configuration, to the passage, for transmitting and detecting ultrasound waves propagating perpendicular to net flow direction of the flowing fluid.

Abstract: A device for manipulating particles present in a fluid medium is disclosed. The device comprises a planar substrate, formed with at least one primary microchannel to allow passage of the fluid medium therethrough. The primary microchannel(s) has walls and a base and being in fluid communication with a plurality of secondary microchannels via at least one branching point. The device further comprises one or more ultrasound transmission pairs, positioned at opposite sides of the walls to generate ultrasound waves propagating through the fluid medium, substantially parallel to the planar substrate, such as to form a standing wave within the primary microchannel.

Abstract: The present invention is directed to a complex comprising of a polymer and a fluorescent probe, a method for its preparation and use thereof for measuring dynamics of single molecules in a polymeric solution.

Abstract: A method and device for mixing a liquid with another substance are presented. The mixing is based on creation of a turbulent flow of the liquid, by providing curvilinear trajectories of the flow and providing a polymer material in the liquid flow.

Abstract: A method and device for mixing a liquid with another substance are presented. The mixing is based on creation of a turbulent flow of the liquid, by providing curvilinear trajectories of the flow and providing a polymer material in the liquid flow.

Abstract: A color television decoder or other signal processor has a gate controlling the passage of a notch filtered chrominance signal. A filter circuit produces a further chrominance signal which serves as the control signal for the gate.

Abstract: Apparatus for creating video test patterns for outputting to a video test pattern generator enables individual lines to be built from standard components with appropriate parameters. Completed lines are held in a form which is television standard-independent and can be edited numerically or graphically. A test pattern is built from a set of lines and a part or fully completed pattern can be displayed to an operator in a picture representation which simulates the appearance of the test pattern when displayed on a television receiver.