91results about How to "Low signal" patented technology

Embodiments of the present invention provide a method for transmitting low rate signals over an optical transport network, including: adapting the low rate signals into low rate optical channel data units of the same rate level with the low rate signals; asynchronously mapping each of the low rate optical channel data units into a low rate optical channel data tributary unit respectively, and generating justification overhead used for rate adaptation for each of the low rate optical channel data units; and forming a higher order optical channel data unit with at least one low rate optical channel data tributary unit and justification overhead corresponding to the low rate optical channel data tributary unit. The present invention enables the optical transport network to support mapping, multiplexing and highly efficient transmission of low rate signals.

Communication between a remote locator and a transponder is used to determine the relative position of the transponder. The transponder and locator each include a transmitter and a receiver. The locator transmits an inquiry in the form of a relatively powerful cyclically encoded signal with repetitive elements, uniquely associated with a target transponder. Periodically, each transponder correlates its coded ID against a possible inquiry signal, determining frequency, phase and framing in the process. Upon a match, the transponder transmits a synthesized response coherent with the received signal. The locator integrates multiple cyclical response elements, allowing low-power transmissions from the transponder. The locator correlates the integrated response, determines round-trip Doppler shift, time-of-flight, and then computes the distance and angle to the transponder. The transponder can be wearable, bionically implanted, or attached to, or embedded in, some object.

A Wireless Personal Area Network that provides multiple users with multi-gigabit-per-second data rate wireless connectivity and is integrated with an optical fiber distribution network is disclosed. Embodiments relate generally to an integrated fiber optic WPAN architecture that comprises multiple 57-66 GHz remotely located wireless access points interconnected with a centrally located distribution point using optical fiber links. The integrated network provides an efficient, flexible and scalable 57-66 GHz WPAN architecture since the fiber optic links accommodate the delivery of bandwidth intensive services to large numbers of users while seamlessly supporting the diversity of multi-gigabit-per-second data applications. Two approaches for the transport of the WPAN signals over the optical fiber signal distribution network are described. One technique for interconnecting the remote radio access points in the fiber distributed 57-66 GHz WPAN is via an optical fiber network which can transport the wireless signals over the fiber as ‘analog over fiber’. An alternative ‘digital over fiber’ signal transport scheme for the fiber distributed 57-66 GHz WPAN is also described which supports the transport of the multi-gigabit-per-second WPAN digital data streams over fiber.

A method of mixing audio channels is effective at rebalancing the audio without introducing unwanted artifacts or overly softening the discrete presentation of the original audio. This is accomplished between any two or more input channels by processing the audio channels to generate one or more “correlated” audio signals for each pair of input channels. The in-phase correlated signal representing content in both channels that is the same or very similar with little or no phase or time delay is mixed with the input channels. The present approach may also generate an out-of-phase correlated signal (same or similar signals with appreciable time or phase delay) that is typically discarded and a pair of independent signals (signals not present in the other input channel) that may be mixed with the input channels. The provision of both the in-phase correlated signal and the pair of independent signals makes the present approach well suited for the downmixing of audio channels as well.

A color image forming apparatus produces a latent image on a photosensitive body based on a signal output from a scanning light detecting part in response to detection of scanning light; a semiconductor laser modulation signal generating part includes a clock generating part and a clock modulation part; a semiconductor laser and a semiconductor laser driving part are provided for each color of yellow, magenta, cyan and black; and further, a plurality of the semiconductor lasers are provided for at least one color of yellow, magenta, cyan and black.

A high range resolution ladar includes a chirp generator for producing a chirp signal waveform that is used by a laser diode to propagate a divergent laser light waveform. The reflected light signals from the target are directed to a self mixing detector that is coupled to the chirp generator where the responsivity of the detector varies in accordance with the chirp waveform for converting reflected light signals from the target to electrical signals and for mixing the converted electrical signal with the chirp waveform to produce an output electrical signal whose frequency is proportional to the range to the target. The self-mixing detector includes at least one detector having a semiconductor substrate and first and second electrodes deposited on the substrate and spaced from each other, wherein the first set of electrodes is connected to the chirp generator and the second set of electrodes is connected to a memory for storing a plurality of frames of image data.

A mobile radio communication system having a mobile radio communication network and a mobile radio subscriber appliance, wherein a unit in the network layer of the core network of the mobile radio communication network is configured to transmit to the mobile radio subscriber appliance a first message, based on an occurrence of a predetermined event, with a request for a statement which describes at least one radio characteristic of the mobile radio subscriber appliance.

An electrical connector includes a middle shielding plate, a lower terminal module, an upper terminal module mounted on a top surface of the middle shielding plate, an insulation module and a shielding shell. The middle shielding plate is mounted on the lower terminal module. The lower terminal module includes a plurality of lower terminals which include two lower ground terminals. A front end of an outer side of each of the lower ground terminals is connected with a lower connecting piece. The upper terminal module includes a plurality of upper terminals which include two upper ground terminals. A front end of an outer side of each of the upper ground terminals is connected with an upper connecting piece. The shielding shell is mounted outside the lower terminal module, the upper terminal module and the insulation module.

A class of modular, double-sided, edge-mounted printed circuit (PC) board modules and an associated modular network architecture for constructing stripline signal processing networks including high-power analog amplifiers and beam forming networks for driving multi-beam antenna systems. The stripline signal processing networks are characterized by network elements constructed from defined-length segments of transmission media configured to exhibit precisely determined phase and impedance characteristics. These circuits may also include conventional passive “lumped” electrical elements, such as resistors, capacitors and inductors; non-linear circuit elements such as diodes; and active electrical elements, such as amplifiers and transistors.

An object of the present invention is to reduce the number of necessary terminals on a substrate, realize data transmission resistant to disturbance noise even when a source voltage of a logic system for processing a digital video signal is lowered, reduce an influence of a radiated noise, and provide an output image of high picture quality. For that purpose, a reflection type of liquid crystal display has a silicon substrate 1 as an active matrix substrate, uses the digital video signal for a video signal to be input, and converts the digital video signal into an analog video signal in the silicon substrate 1 to provide the output image. The reflection type of liquid crystal display having the above configuration has a DAC circuit 22 for converting the input digital video signal into the analog video signal; and an LVDS receiver 20 which receives each digital video signal that is to be input into the DAC circuit 22, through a LVDS transmission. The LVDS receiver 20 is mounted on the same silicon substrate 1 as the DAC circuit 22 is mounted.

A charging method is provided for a communications service in a cellular communications system, especially for a prepaid communications service. A prepaid service processing node (PSPN) processes a communications service. A prepayment support node information (PI) is received from a subscriber profile database (SPD). A prepayment support node address (PA) is determined from the prepayment support node information (PI). The determined prepayment support node address (PA) is stored. A request for the communications service to be charged on a subscriber's prepayment account is detected, and a credit information request is sent to a prepayment support node (PPSC) identified by the stored prepayment support node address (PA). A credit information is received, and the requested communications service is processed according to the credit information. The invention provides a device for said charging as well.

Embodiments of the present invention provide a method for transmitting low rate signals over an optical transport network, including: adapting the low rate signals into low rate optical channel data units of the same rate level with the low rate signals; asynchronously mapping each of the low rate optical channel data units into a low rate optical channel data tributary unit respectively, and generating justification overhead used for rate adaptation for each of the low rate optical channel data units; and forming a higher order optical channel data unit with at least one low rate optical channel data tributary unit and justification overhead corresponding to the low rate optical channel data tributary unit. The present invention enables the optical transport network to support mapping, multiplexing and highly efficient transmission of low rate signals.

A charging method is provided for a communications service in a cellular communications system, especially for a prepaid communications service. A prepaid service processing node (PSPN) processes a communications service. A prepayment support node information (PI) is received from a subscriber profile database (SPD). A prepayment support node address (PA) is determined from the prepayment support node information (PI). The determined prepayment support node address (PA) is stored. A request for the communications service to be charged on a subscriber's prepayment account is detected, and a credit information request is sent to a prepayment support node (PPSC) identified by the stored prepayment support node address (PA). A credit information is received, and the requested communications service is processed according to the credit information. The invention provides a device for said charging as well.

A torque sensor has a housing which has a light source and a measuring shaft which has a signal generator arrangement belonging to a rotation angle sensing device with a processing The rotation angle sensing device is arranged to rotate relative to the housing, together with the measuring shaft, and the processing device has an opto-electric power supply device.

The invention discloses a capacitive touch module and a touch display apparatus, where a first touch sensing electrode, a second touch sensing electrode connected to one touch sensing line are respectively disposed in two adjacent touch units, and a first touch driving electrode and a second touch driving electrode connected to one touch driving line are respectively disposed in two adjacent touch units, so that the touch sensing signal can respond to the change of the sensing capacitances in the two adjacent touch units, so as to reduce the high-frequency false signal possibility from the touch units, thereby lower the possibilities of an improper trigger and a mis-operation due to a jump and a sudden change at a touch point, thus making a touch event more smooth and fluid.

An electronic driver circuit for comnmunicating a logic value along a conductor (12) from one part of a system (10) to another (14) by representing each of two logic values by one of two logic levels (VDD, Vss).A capacitor (CR1) reduces ground and power reference differences between a chip containing the driver and the board on which it is mounted. The capacitor also provides power and ground decoupling. According to another aspect, a controlled slew rate ramp initiates an incident or outbound wave or turn-on and circuits are described for this. The time taken to complete the controlled slew rate ramp can be adjusted. The arrangements allow reduced power consumption, whilst at the same time producing desirable signal characteristics.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a power adjusting method and corresponding to control node and UE. According to the present disclosure, interference to adjacent devices of the same or different wireless access techniques may be avoided, uplink scheduling efficiency of the UE may be increased, and therefore the efficiency of the whole network is increased.

The invention provides a charging method for a communications service in a cellular communications system, especially for a prepaid communications service. A prepaid service processing node (PSPN) processes a communications service. A prepayment support node information (PI) is received from a subscriber profile database (SPD). A prepayment support node address (PA) is determined from the prepayment support node information (PI). The determined prepayment support node address (PA) is stored. A request for the communications service to be charged on a subscriber's prepayment account is detected, and a credit information request is sent to a prepayment support node (PPSC) identified by the stored prepayment support node address (PA). A credit information is received, and the requested communications service is processed according to the credit information. The invention provides a device for said charging as well.

The invention relates to a biochip (5) comprising a porous support (10), wherein the porous support (10) comprises at least one surface coated with a coating, preferably a polymer coating (20), wherein the coating is patterned with a micro compartments (25) pattern, with the support providing a bottom surface to the compartments and the coating providing edges to the compartments, and wherein the pattern comprises at least 400 compartments per mm2. The biochip (5) can be obtained by a process comprising providing a porous support (10); coating at least one surface of the support with a coating (20); arranging between the coated surface and an ion etching device a shadow mask with a predetermined hole pattern; and ion etching at least part of the coating such that a patterned coating with micro compartments (25) is obtained.

A device is disclosed which couples the use of Trans Epithelial Nerve Stimulation with the administration of a therapeutic injection, such as an immunization, or tissue sampling procedure such as deriving a blood sample. By such an arrangement the discomfort associated with these procedures may be considerably reduced or eliminated, thereby improving compliance with a range of medical procedures. To date TENS has not been used in such an arrangement, rather development in TENS technology has been aimed at improving its efficacy. Similarly injection technology developments have been orientated around reducing cross infection risks and accidental injury to operator or patient.

The invention discloses a method suitable for simultaneously detecting 9 N-nitrosamines in food contact rubber products. The method comprises the following steps: utilizing a sample to be tested to establish a migration system to obtain a migration extract; utilizing the migration extract to prepare a sample solution to be tested to obtain a supernatant / filtrate; preparing 9 N-nitrosamines into a standard solution to further prepare a standard working solution with the gradient of 0.01-0.40 [mu]g / mL; injecting the gradient standard solution and the supernatant / filtrate into a liquid Chromatogram-tandem mass spectrograph, and testing the cation multi-reaction monitoring model to finally obtain the respective contents of 9 N-nitrosamines in the sample to be tested. The 9 N-nitrosamines are N-Nitrosodimethylamine, N-Nitroso-ethyl methylamine, N-Nitrosomorpholine, N-Nitrosopiperidine, N-Nitrosopyrrolidine, N-Nitroso-diethylamine, N-Nitrosodibutylamine, N-Nitrosodi-n-propylamine and N-Nitroso-diphenylamine.

A high frequency composite switch module for a mobile communication device, wherein high frequency circuits such as a power amplifier, a circuit functioning as a transmitter / receiver switching circuit, a surface acoustic wave (SAW) filter for reception, and the like are modularized into one unit. A transmitter circuit includes a transmitter side impedance converter comprising an impedance matching circuit and an impedance converter circuit, a power amplifier and a power supply unit. A receiver circuit includes a receiver-side impedance converter comprising a phase shifting circuit and a SAW filter. The power amplifier and the impedance converter circuit are integrated into one IC chip. At least one of the matching circuit, the power supply unit and the phase shifting circuit is formed inside a multilayer board comprised of a conductor layer and a dielectric layer. The IC chip and the SAW filter are also mounted on the multilayer board.

An improved spread spectrum communications system is disclosed in which M-ary symbols are defined corresponding to each state of digital data to be transmitted and in which each of those M-ary symbols are represented by a plurality of tones selected from a set of N frequencies. A different plurality of tones out of the set N is established to represent each of the M-ary symbols during each successive timing interval, with selection of the tones comprising each such plurality of tones being determined in accordance with a known coding pattern. Phasing of the tones comprising each such plurality is also determined in accordance with a known coding sequence. After selection of the symbol corresponding to the data to be transmitted during a given timing interval, the frequency domain representation of the plurality of tones corresponding to that symbol is converted to the time domain for transmission. That time domain signal is converted back to the frequency domain by the receiver and the resultant signal processed by M-ary signal correlators synchronized with coding established by the transmitter to determine the transmitted symbol.

A detection method of low frequency handshaking signal is described. The method includes the following steps of: (a) performing first impedance calibration when host device is activated for sending a first low frequency signal based on the first impedance calibration and performing a second impedance calibration when a controlled device is activated for sending a second low frequency signal based on the second impedance calibration; (b) transmitting a first high frequency training signal from the host device to the second receiver of the controlled device when the first low frequency signal and the second low frequency signal are in a predetermined condition; and (c) transmitting a second high frequency training signal from the controlled device to the first receiver of the host device wherein the frequency of the first low frequency signal and the second low frequency signal is smaller than the frequency of the first high frequency training signal and the second high frequency training signal.

This invention relates to a device for and method of implementing an ambient noise-cancellation (ANC) circuit that uses digital processing whereby a signal indicative of the ambient noise is converted to digital form, filtered, using a fixed or adaptive digital filter, and then converted back to analogue before sending it to an ear-proximate speaker. In order to address the time delays associated with such processing operations, the analogue-to-digital converter used is associated with a down-sampler, and the arrangement is such that a first part of the filtering is implemented by the down-sampler, and a second part of the filtering is implemented by the digital filter. This reduces group delay by configuring a down-sampler associated with the front end of the analogue-to-digital converter to incorporate selected filter characteristics of the overall ANC filter response, and modifying the subsequent filtering processing stage to compensate for this.

This invention relates to an apparatus for processing an input image including M input pixels. Each of the M input pixels respectively has an input gray scale. The apparatus includes a gain generating module, a contrast enhancing module, and a Gamma adjusting module. The gain generating module generates a contrast gain and a minimum input gray scale in accordance with the input gray scales of the M input pixels. The contrast enhancing module adjusts the input gray scales in accordance with the contrast gain and the minimum input gray scale, to generate an intermediate image. The intermediate image includes M intermediate pixels, and each of the M intermediate pixels respectively has an intermediate gray scale. The Gamma adjusting module adjusts the intermediate gray scales lower than a first threshold in accordance with the contrast gain and outputs the adjusted intermediate image as an output image.

Apparatus and methods for determining the absence or presence of contraband in an object with a fast neutron source for irradiating the object; a detector for measuring γ-rays emitted by the irradiated object from energy state relaxation as a result of neutron capture, typically after the object has been irradiated.