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93results about How to "Guaranteed interference effect" patented technology

Portable raman diagnostic system

The present invention further relates to the selection of the specific filter combinations, which can provide sufficient information for multivariate calibration to extract accurate analyte concentrations in complex biological systems. The present invention also describes wavelength interval selection methods that give rise to the miniaturized designs. Finally, this invention presents a plurality of wavelength selection methods and miniaturized spectroscopic apparatus designs and the necessary tools to map from one domain (wavelength selection) to the other (design parameters). Such selection of informative spectral bands has a broad scope in miniaturizing any clinical diagnostic instruments which employ Raman spectroscopy in particular and other spectroscopic techniques in general.
Owner:MASSACHUSETTS INST OF TECH

Systems and methods for providing an adjustable reference signal to RF circuitry

Frequency modification circuitry may be employed as part of a crystal oscillator circuit to generate a reference signal with adjustable frequency. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may adjust the frequency of the reference signal in response to one or more frequency control signals. In one example, the frequency modification circuitry may include variable capacitors such as one or more continuously variable and / or discretely variable capacitors for providing coarse and / or fine adjustment of the reference signal frequency.
Owner:SILICON LAB INC

Apparatus and method for assigning sub-channels in an OFDMA system

InactiveUS20070081491A1Faster channel assignment schedulingMaximum utilization efficiency of radio resourceTransmission path divisionCriteria allocationEngineeringOperations research
A sub-channel assignment apparatus and method of minimizing interference caused by sub-channel frequency overlaps when assigning sub-channels for sectors of a base station in an OFDMA system of a FDMA type. The apparatus includes: a plurality of sector channel management parts that assign at least one channel having assignable channel indexes in response to requests from users in a sector managed by the sector channel management part, and report sector load information regarding the total number of the requests from the users in the sector; and a channel assignment scheduler for using the sector load information reported from each channel management part to calculate the number of assignable channels per class for each of the sectors, and determines the assignable channel indexes per class for each of the sectors according to the number of assignable channels, and forwards the assignable channel indexes to each of the sector channel management parts.
Owner:LG ERICSSON

Interference reduction in mobile stations for CDMA mobile communications networks

In a CDMA communications network a mobile station includes wanted signal processing circuitry (12) for processing an input signal (PRX), representing a CDMA transmission signal received at the mobile station from a base station of the network, to derive therefrom a wanted signal embodying a preselected spreading code. The mobile station also includes code information receiving circuitry (52) which receives from the base station code information (CIi1–CIim) identifying a further spreading code assigned by the network to an interfering signal of another network user. Interfering signal processing circuitry (14) employs the further spreading code identified by the received code information to reduce the interference effect of that interfering signal on the derived wanted signal.
Owner:FUJITSU LTD

Methods and Apparatus for Inter-cell Interference Coordination Self-Organized Network

A method of resource allocation for use in a wireless network is disclosed. A network coloring decision to assign a plurality of resource blocks to a plurality of cells within the wireless network is triggered upon occurrence of a network event. A network coloring is performed by assigning each cell of the plurality of cells a resource block from the plurality of resource blocks. An effect of interference among adjacent cells with a same resource block assignment is reduced as measured by a network performance metric related to a number of resource block assignment conflicts over the plurality of cells.
Owner:HONOR DEVICE CO LTD

Hose line with a connection sleeve

A hose connection comprises a hose (1), an elastic sleeve (2), a connection tube (3) and a stiff ring (4). The hose (1) is made of a thermoplastic material and has a smooth surface on the inside and exhibits helically formed running wave valleys and wave mountains on the outside. The elastic sleeve (2) is fixedly connected to the hose (1) and carried at one end of the hose (1) and has a front end. The connection tube (3) has recesses 3(a). The elastic sleeve (2) engages into the connection tube (3) in the destined position of the elastic sleeve (2). The elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3). The sleeve (2) is gripped around by the stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and is axially aligned. At least two tongues (4a) are formed into the stiff ring (4) with roots, wherein the tongues (4a) are spring supported around the roots of the tongues (4a) for lockingly engaging into the recesses (3a) of the connection tube (3).
Owner:TRUPLAST KUNST

Method and device for light etching micrometer structure of smooth surface

This invention discloses a method for photo-etching smooth surfaces, which takes a large power laser as the light source, collimates the laser beams to parallel lights to pass through diaphragms and a lens to generate split light beams by a splitting element to be gathered on a material surface to form a uniform interference fringe optical field then carries out photo-etching exceeding the material harmful threshold value on the surface of the smooth material characterizing that three or four multiplications of a large power solid laser pumped by diode output by ultraviolet rays are applied as the light source, said diaphragm is an adjustable rectangle and single time pulse process is done at a same position to control the power of the laser so that the material of the interference fringe light-intensity additive position is gasified to form a fringe structure on the surface of the material and mum-stage fringe high speed laser system is realized by this method.
Owner:苏州迈塔光电科技有限公司 +2

Dual phased-locked loop structure having configurable intermediate frequency and reduced susceptibility to interference

InactiveUS6970030B1Add phase noisePhase noise be largePulse automatic controlElectric pulse generatorIntermediate frequencyDual loop
A PLL function may be implemented as a dual-loop structure having a first PLL circuit which generates an intermediate signal from the reference signal, and a second PLL circuit which generates an output signal from the intermediate signal. The intermediate signal frequency is preferably chosen at a value in which potential interference signals do not have much energy. The first loop preferably has low bandwidth to provide good input jitter attenuation, while second loop preferably has higher bandwidth to reduce phase noise of the output signal. The circuit preferably provides for a choice of several different intermediate frequencies to allow use where different intermediate frequencies may exist in each system. Moreover, in a system having two such dual-loop PLL circuits, each can be configured with a different intermediate frequency, so that interference from one to the other is reduced.
Owner:SKYWORKS SOLUTIONS INC

Radio frequency stealth-based distributed MIMO radar jamming waveform design method

ActiveCN108008361AGuaranteed Interference PerformanceExcellent radio frequency stealth performanceWave based measurement systemsRadio frequencyEngineering
The invention discloses a radio frequency stealth-based distributed MIMO radar jamming waveform design method. In the case of electronic countermeasure between an airborne electronic jamming system and the distributed MIMO radar, according to prior knowledge, the frequency response of a target relative to the distributed MIMO radar, radar transmission signals and a receiver noise power spectrum are acquired; then, with the target of minimizing the total transmission power of the airborne electronic jamming system, a radio frequency stealth-based distributed MIMO radar jamming waveform design model is built, and the model is solved through a Lagrange multiplier method; and iterative calculation is carried out through a dichotomy method, the jamming waveform with the minimum total transmission power of the airborne electronic jamming system is selected as the optimal solution, and the minimum jamming total power meeting constraint conditions can be obtained. The radio frequency stealth-based distributed MIMO radar jamming waveform design method has the beneficial effects that the jamming performance to the distributed MIMO radar system can be ensured, and the radio frequency stealthperformance of the airborne electronic jamming system can also be enhanced effectively.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Portable raman diagnostic system

The present invention further relates to the selection of the specific filter combinations, which can provide sufficient information for multivariate calibration to extract accurate analyte concentrations in complex biological systems. The present invention also describes wavelength interval selection methods that give rise to the miniaturized designs. Finally, this invention presents a plurality of wavelength selection methods and miniaturized spectroscopic apparatus designs and the necessary tools to map from one domain (wavelength selection) to the other (design parameters). Such selection of informative spectral bands has a broad scope in miniaturizing any clinical diagnostic instruments which employ Raman spectroscopy in particular and other spectroscopic techniques in general.
Owner:MASSACHUSETTS INST OF TECH

Cosmetic and Personal Care Formulations with Goniochromatic Non-Quarter Wave Multi-Quadrant Multi-Layer Effect Materials

Cosmetic and personal care formulations with goniochromatic non-quarter wave multi-quadrant multi-layer effect materials includes a transparent substrate such as borosilicate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack. Further color intensity, dimension and depth is obtained by combining the goniochromatic effect material with combination pigment which is obtained by combining a transparent substrate, an interference pigment and an absorption colorant.
Owner:ENGELHARD CORP

Data Load Redistribution Within a Relay Enhanced Telecommunication Network

It is described a method for changing the data load distribution within a telecommunication network comprising including a first base station, a second base station and a relay node being connected to the first base station and / or to the second base station. The described method includes (a) establishing for each of a plurality of user equipments a first indirect connection to the first base station via the relay node, (b) establishing in a collective manner for each of the plurality of user equipments a second indirect connection to the second base station via the relay node, and (c) terminating in a collective manner for each of the plurality of user equipments the first indirect connection. It is further described a network element, which is adapted to carry out the above described data load redistribution method, and a computer program, which is adapted for controlling the above described data load redistribution method.
Owner:WSOU INVESTMENTS LLC

Method and apparatus for testing a radio network

In a radio communication system that includes multiple service areas, each service area is associated with a predetermined number or amount of radio communication resources. Each radio communication resource can be used for a prescribed period of time corresponding to one or more time units. An operator or other entity identifies a set of service areas to be tested at an increased effective load. A desired test level (e.g., increased traffic load) is determined, and a corresponding number of radio resource time units is determined to achieve the desired test level conditions. Use of radio communication resources in the determined one or more time units is blocked for a test period. Performance by each service area during the test period is determined.
Owner:TELEFON AB LM ERICSSON (PUBL)

Methods for treating cancer

The present invention relates to methods of treating patients with advanced forms of cancer, such as metastatic melanoma and non-small cell lung cancer, in which X4P-001 is administered as monotherapy or in combination with immune checkpoint inhibitors, such as pembrolizumab. The methods demonstrate surprising results, including regression of disease, with comparatively little toxicity.
Owner:X4 PHARMA INC

Inspection device for a production machine

The invention relates to an inspection device for a production machine, in particular, a bottling plant 1 with a filling device 7 or a filling and sealing device 13, with a stream of products (5) consisting of one or more columns, wherein the inspection device is arranged in the production machine, advantageously in the bottling plant 1, directly after the filling device 7 or the filling and sealing device 13 or before a separating device 23, so that the products 5 are inspected before the separation 23 or packaging 25 of the products 5. Furthermore, the invention relates to an inspection method for a production machine, in particular, for a bottling plant 1, in which an inspection device consisting of a source 17 and a sensor 19 scans several products 5 perpendicular or diagonal to the product motion B.
Owner:WIPOTEC WIEGE UND POSITIONIERSYSTEME GMBH

Equipment and method for measuring dental shade

The invention relates to a device for measuring dental shade comprising: —illumination means (24, 40, 42, 44, 48, 50), for successively illuminating at least one part of a tooth (D) with light of various spectral ranges, —at least one sensor (26) sensitive to light coming from said tooth part, in response to the illumination, to generate for each different color of illumination, at least one measurement signal, —means (30, 32) for converting the measurement signals corresponding to said tooth part, into the coordinates of a measurement point (202), in a shade space in which “reference” points (320, 410, 540) are also defined, corresponding to the preset shades of a dental shade guide, and—search means (114), for the tooth part, for a shade corresponding to the reference point closest to the measurement point, in the shade space.
Owner:CARESTREAM DENTAL LLC

Equipment and method for measuring dental shade

The invention relates to a device for measuring dental shade comprising: —illumination means (24, 40, 42, 44, 48, 50), for successively illuminating at least one part of a tooth (D) with light of various spectral ranges, —at least one sensor (26) sensitive to light coming from said tooth part, in response to the illumination, to generate for each different color of illumination, at least one measurement signal, —means (30, 32) for converting the measurement signals corresponding to said tooth part, into the coordinates of a measurement point (202), in a shade space in which “reference” points (320, 410, 540) are also defined, corresponding to the preset shades of a dental shade guide, and—search means (114), for the tooth part, for a shade corresponding to the reference point closest to the measurement point, in the shade space.
Owner:CARESTREAM DENTAL LLC

Opitcal pickup

To reduce a bad influence on a tracking control signal and a data signal by reflected light from an adjacent layer on a multi-layer disc as stray light, the following device is made in the invention. Reflected light from the multi-layer optical disc including stray light from another layer is once converged by a reflected light condenser lens and is reflected on a reflector. A grating which prevents zero-order light from being generated by setting groove depth to λ / 4 and which is set to pitch to prevent positive and negative first- or higher-order diffracted lights from returning to the reflected light condenser lens is arranged between the lens and the reflector including an optical axis with the grating apart from the reflector. Hereby, as reflected light from another layer is cut off though reflected light from a corresponding layer is transmitted to a detector, a detected control signal and a detected data signal are not influenced by reflected light from another layer.
Owner:HITACHI MEDIA ELECTORONICS CO LTD

Method for shielding signals of mobile phone and portable wireless instrument for emitting multitone jamming

A method for shielding signals of a mobile phone and a portable wireless instrument for emitting multitone jamming, which is characterized in that within known working bandwidth, practically effective working frequency points and frequencies of the mobile phone are scanned and collected so as to save radiofrequency energy; the analysis and control are carried out by a central processing unit so as not to jam the remained frequency points and frequency bands non-complying with the requirements. Within the equal distance with the interference effect ensured, the radiation of the microwave to human is greatly reduced, the electromagnetic radiation pollution to the circumference is relieved, and the design with reduced power dissipation, lightened weight and reduced volume lightens the instrument, thus enlarging the application scope of the instrument.
Owner:北京嘉德宝业科技发展有限公司

Partitioned radio-frequency apparatus and associated methods

Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.
Owner:SILICON LAB INC

Device for measuring and correcting the luminance of a display

A device for measuring and correcting the luminance of a flat screen display, which can be illuminated from the rear by the light of a backlight, having a backlight control, which adjusts a luminance measured by a sensor to a selectable setpoint value representing the intensity of the light of the backlight. The sensor is arranged in an area of the flat screen display device that is not visible to a viewer, and a swivel is provided to swivel the sensor out, essentially parallel to the display panel, from a standby position to a position for measuring the luminance of a test image that can be displayed on the display panel during a calibration phase. As a result, effects due to aging and / or temperature of the display panel and interfering with the luminance of the display panel are detected and can be largely corrected.
Owner:EIZO

Printed circuit board

A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.
Owner:MEDIATEK INC

Methods and compositions for increasing RNA interference

The present invention relates to compositions containing a combination of a first active component comprising one or more sulfated polysaccharides and / or glycosaminoglycans and a second active component comprising one or more RNAi-inducing molecules, and methods for using these compositions to enhance double-stranded RNA (dsRNA)-mediated gene silencing in pest or pathogen species. The invention further relates to methods for controlling pests or pathogens, methods for preventing pest infestations or pathogen infections and methods for knocking down gene expression in pests or pathogens using the compositions and methods of the invention.
Owner:DEVGEN NV

Printed circuit board

A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.
Owner:MEDIATEK INC

Method, device and system for generating and receiving a phase polarization modulated signal

In the field of communications transmission, a method, a device, and a system for generating and receiving a phase polarization modulated signal are disclosed. The device for generating the phase polarization modulated signal includes: a Laser Diode (LD), a time division demultiplexer, a phase precoding module, a phase modulating module, a polarization precoding module and a polarization modulating module. The device for receiving the phase polarization modulated signal includes: an optical splitter, a polarizer, a phase demodulating and receiving unit, a Polarization Beam Splitter (PBS), a balanced receiver, a power divider, an exclusive OR, a delayer and a data interface processing unit. Therefore, problems in the prior art that a Differential Quadrature Phase Shift Keying (DQPSK) signal cannot bear and transmit information at a higher rate and that non-linear effect is strong during transmission are solved, and transmission performance of an optical signal is improved.
Owner:HUAWEI TECH CO LTD

Corner reflector interference echo simulation method after tracking moving target by missile-borne radar

The invention belongs to the technical field of radars, and discloses a corner reflector interference echo simulation method after tracking a moving target by a missile-borne radar. The corner reflector interference echo simulation method comprises the steps of: firstly, calculating a radar scattering cross-sectional area of a corner reflector; secondly, calculating a Doppler frequency of a cornerreflector interference modulation sequence according to a radius and a rotating speed of the rotating corner reflector; thirdly, solving the corner reflector interference modulation sequence according to amplitude and delay of the corner reflector interference modulation sequence; and finally, carrying out convolution on a transmission signal and the modulation sequence to obtain a corner reflector interference echo signal. Therefore, the Doppler frequency brought by the rotation of the corner reflector is obtained, and the passive interferent corner reflector can be detected as a target witha velocity.
Owner:XIDIAN UNIV

Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry

A buffer circuitry buffers a radio-frequency (RF) signal. The buffer circuitry includes a complementary pair of switches and a power source. The a complementary pair of switches has an input terminal and output terminal. The input terminal of the complementary pair of switches responds to the RF signal. The output terminal of the complementary pair of switches couples to an output of the buffer circuitry. The power source includes a capacitor coupled to a current source. The power source couples to the complementary pair of switches. The power source supplies power to the complementary pair of switches in a manner that the buffer circuitry supplies a substantially constant power level at its output.
Owner:SILICON LAB INC
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