摘要:
The present disclosure relates to different techniques of generation of a transmission signal, as for example, a transmitting apparatus for transmitting a communication signal and a method for transmitting a communication signal.
摘要:
A phase locked loop has a controlled oscillator for outputting an oscillator signal depending on a control signal. A comparator generates a comparison result from a comparison between a reference frequency signal and a feedback signal derived from the oscillator signal. The phase locked loop also has a filter block for filtering the comparison result and for deriving the control signal from the comparison result, where the filter block has a loop filter and a rejection filter for the frequency-selective attenuation of at least one first interference frequency in the comparison result.
摘要:
Systems and methods are provided for automatically assigning an incoming quantity of goods in response to an event. In one implementation, a system is provided for automatically assigning an incoming quantity of goods in response to an event. The system comprises an inbound interface for interfacing with a plurality of data storage devices in at least one of which the incoming quantity of goods are stored as data and a plurality of sales orders to be confirmed are stored; an execution memory operable to hold a software system, and a processor for coupling to the inbound interface and the execution memory, the processor being operable to execute the software system such that the software system operates to select a subset of sales orders from the plurality of sales to be confirmed according to one or more predetermined criteria and to assign to the subset of sales orders the incoming quantity of goods.
摘要:
Systems and methods are provided for deriving power for an external device from the power source of a fluorescent light. The power source includes a fluorescent ballast electrically connected to the connectors of a light fixture for receiving an input voltage and for converting the input voltage to a lamp voltage suitable for powering a fluorescent lamp. The fluorescent ballast may be modified to include an output line that outputs a voltage for powering the external device to a power port. The power port may be mounted on or near the fluorescent light. Alternatively, the power port may be integrated within a housing that contains one of the connectors of the light fixture. The ballast may be further modified to include an output line for extracting network data and control signals from the power line carrier signals on the input voltage.
摘要:
Multilayered magnetic pigment flakes and foils are provided. The pigment flakes can have a symmetrical coating structure on opposing sides of a magnetic core, or can be formed with encapsulating coatings around the magnetic core. The magnetic core can be a magnetic layer between reflector or dielectric layers, a dielectric layer between magnetic layers, or only a magnetic layer. Some embodiments of the pigment flakes and foils exhibit a discrete color shift so as to have distinct colors at differing angles of incident light or viewing. The pigment flakes can be interspersed into liquid media such as paints or inks to produce colorant compositions for subsequent application to objects or papers. The foils can be laminated to various objects or can be formed on a carrier substrate.
摘要:
A flake-based pigment is provided having improved specular reflectance characteristics in the visible wavelength range. The flake-based pigment has a plurality of composite reflective flakes each formed of a support layer and a reflector layer on one or both opposing sides of the support layer. This flake structure exhibits a uniaxial compressive strength much greater than a corresponding uniaxial tensile strength. The structure of the flakes provides the benefits of rigidity and brittle fracture during manufacture and application processes, which ultimately provides favorable planar and specular reflectance characteristics to the pigment in the visible wavelength range. A variety of outer coating layers can be formed around the composite reflective flakes, such as various dielectric and/or absorber layers, to produce desired optical characteristics in the pigment.
摘要:
An arrangement for determining the position of a surgical microscope uses signal transmitters and signal receivers. Light emitting diodes that emit coded light signals and light receptors for receiving the coded light signals are arranged in various locations in space. Reflectors having narrow-bond reflection characteristics are arranged on the microscope so that the light reflected can be identified.
摘要:
The invention is directed to a surgical microscope in which, to determine the distance between the microscope (8, 13) and the object (22), the travel time of a beam of light (57c) emanating from the microscope and reflected by the object is determined. The travel time is determined by phase measurement or by interference matching. In the case of direct phase measurement, modulated light is used. In the case of interference matching, partly coherent light is used. In order to ensure high accuracy over wide measurement range, the two measurement methods are preferably used in combination.
摘要:
Articles and methods for forming optically variable thin film flakes and replicated coatings having preselected optical properties. The articles generally comprise a flexible web of material and an optically variable thin film coating formed on one surface of the web. The optically variable coating is separated from the web to form optically variable thin film flakes. The flakes are disposed in ink and paint vehicles to provide optically variable inks, paints and the like.
摘要:
An article adapted to be utilized in the production of optically variable ink comprised of a flexible insoluble web, a release lever formed on the web and an optically variable multilayer thin film interference stack disposed on the release layer and which provides a color shift between two predetermined uniform colors. The interference stack includes an opaque reflective layer which has first and second surfaces and at least one period on each said first and second surfaces to provide the same color shift from each of said first and second surfaces between said two predetermined uniform colors at two different angles of incident light. Each period is comprised of a dielectric layer and a semi-opaque layer.