126 results about "Distributed circuit" patented technology

Various aspects and embodiments of the invention are directed to methods and compositions for reversing antibiotic resistance or virulence in and/or destroying pathogenic microbial cells such as, for example, pathogenic bacterial cells. The methods include exposing microbial cells to a delivery vehicle with at least one nucleic acid encoding an engineered autonomously distributed circuit that contains a programmable nuclease targeted to one or multiple genes of interest.

Tensor transmission-line metamaterial unit cells are formed that allow the creation of any number of optic/electromagnetic devices. A desired electromagnetic distribution of the device is determined, from which effective material parameters capable of creating that desired distribution are obtained, for example, through a transformation optics/electromagnetics process. These effective material parameters are then linked to lumped or distributed circuit networks that achieve the desired distribution.

A test head for an integrated circuit tester includes a set of wedge-shaped node cards, one for each terminal of the integrated circuit device under test (DUT). Each node card holds circuits for carrying out all test activities at one DUT terminal including generating and transmitting a test signal to the DUT and receiving and processing a response signal produced by the DUT. The test and response signals pass through an I/O terminal at a narrow end of the node card. A card frame having hemispherical inner and outer shells holds the node cards substantially therebetween with the I/O terminal of each card protruding through an aperture in the inner shell. A centroid distributor having substantially a hemispherical shaped surface nesting within the inner shell of the card frame holds a set of first terminals in contact with the node card I/O terminals. A set of conductors within the centroid distributor interconnect each first terminal with a corresponding second terminal on a flat surface of the distributor. A load board assembly holds the DUT and a connector assembly links each second terminal of the centroid distributor to a contact on the load board providing access to a DUT terminal. A pump evacuating air from a space between the inner shell of the card frame and the centroid distributor draws cooling air across the node cards.

The present invention relates to a circuit connection checking system and a method thereof. The system is loaded to a printed circuit board circuit design system which is at least provided with a drawing module, a wiring module and a circuit pattern base and at least comprises a database of attribute data of a template element, an actual element and a wiring element; through a template circuit schematic diagram, an actual circuit schematic diagram drawn by the drawing module according to the template circuit schematic diagram and a circuit wiring schematic diagram generated by the wiring module according to the actual circuit schematic diagram, the attribute data of the template element, the actual element and the wiring element are analyzed and stored in the database; a first class element attribute information and a second class element attribute information of the template element, the actual element and the wiring element are extracted from the database and compared to output a result; according to the result, the difference of the first class element attribute information and the second class element attribute information of the template element, the actual element and the wiring element is indicated in the actual circuit schematic diagram and / or the circuit wiring schematic diagram. The invention improves the wiring accuracy in the process of distributing circuit patterns and reduces amendment opportunity after the circuit patterns are distributed.

The invention provides a manufacturing method for a multilayer stacking printed wiring board, comprising the steps of: (1) providing the number of layers of printed wiring board and a circuit unit ofeach layer, (2) setting the number of key-line layout circuit units which are contained in each circuit layer of a secondary board, (3) arranging a symmetry axis of the secondary board and disposing the key-line layout circuit units in each layer as two groups of key-line layout circuit units along the two sides of the symmetry axis, (4) setting the number of circuit layer of the secondary board,(5) distributing the circuit of the secondary board, (6) fabricating the secondary board according to the distributed circuit, (7) fabricating a secondary outer layer dry film on the secondary board,(8) taking two secondary boards, keeping one fixed and rotating the other for 180 DEG along the symmetry axis, respectively stacking the key-line layout units of the two secondary boards, and then fabricating a motherboard by secondary laminating. By adopting the design of male and female key-line layout, the invention can solve the problem of scrapping the products by avoiding the layer deflection caused by the swelling and contraction variance of the secondary board during secondary laminating, to promote the product percent of pass and decrease the manufacturing cost.

The invention discloses a device and a method for synchronizing system frequency in a packet transport network, and relates to a packet transport network in optical communication. The system frequency synchronizing device comprises a microcomputer processor, a field programmable gate array (FPGA) processing module, a clock integrated circuit, a packet transport network service disk, a synchronous state byte extracting module, a synchronous state byte generating module, a phase locked loop circuit, an external clock input circuit, a high stable crystal oscillator, a clock distributing circuit, a HDB3 coding module and an external clock output circuit, wherein the FPGA processing module comprises a preceding stage preselector, a priority level control module, a first selector, a second selector and a third selector. By the device and method, the system frequency in the whole packet transport network can be synchronized rapidly, data business package transmission and smooth transition can be carried out rapidly and hierarchically, and the device is flexible and has high reliability.

A transmission apparatus of orthogonal frequency division multiplexing for multiplexing a plurality of carriers orthogonal to one another to transmit a modulated signal. The transmission apparatus includes a first modulator for outputting a code modulated in accordance a modulation scheme which can be applied with a synchronous detection for demodulation, a second modulator for outputting a code modulated in accordance with a modulation scheme different from the modulation scheme associated with the first modulator, and a distributing circuit for distributing the codes modulated by the first and second modulators to a plurality of carriers. The distributing circuit distributes the code modulated by the second modulator to all or some of carriers existing within a predetermined number of columns from at least one of both end regions of a signal transmission frequency band, and the code modulated by the first modulator to the remaining carriers.

The invention belongs to the field of power supplies, and provides a CPCI (compact peripheral component interconnect) power unit and system. The power unit comprises a main power switching module, a battery pack, a battery charging and power distributing circuit, a power supply switching circuit, and a power management circuit. In the invention, a power switching circuit and a battery power supply circuit are integrated in the CPCI power unit, the power switching circuit controls to use a main power supply or a battery to supply power to a system based on the state of the main power supply and the battery pack so that the CPCI system is miniaturized and has good stability and portability, and the overall CPCI system has good mobility by a built-in battery power supply system.

The invention relates to a multi-working-mode gas flowmeter and a gas flow measuring method. The multi-working-mode gas flowmeter comprises first pressure gauges, a reference chamber, a comparison chamber, at least two parallel branches, a calibrating chamber, a variable-volume chamber, a fixed-volume chamber, a third stop valve and a differential pressure gauge, wherein the first pressure gauges are serially connected to one another; each branch is provided with a volume chamber; the volume chamber of at least one branch is connected with a small-diameter connecting pipe; the variable-volume chamber is connected with the comparison chamber and has a moving structure capable of adjusting the volume of the volume chamber; the fixed-volume chamber is connected between the comparison chamber and a flow distributing circuit; the third stop valve is connected between the reference chamber and the comparison chamber; and the differential pressure gauge is connected with the reference chamber and the comparison chamber. The gas flow measuring method comprises the following steps of vacuumizing the gas flowmeter; filling gas in the flowmeter; measuring the pressure of the filled gas; and measuring and calculating the flow of the gas. The flow distributing circuit comprises at least two parallel branches, a stop valve is arranged between every two parts, different parts can be combined, so that the gas flowmeter can measure the flow of gas in a plurality of working modes, and the range ability is improved.

The invention discloses a synchronizing and local oscillating device in a TD-LTE-A (time-division long term evolution advanced) integrated tester. The device comprises a sampling ring, a sampler module, a direct digital synchronizing module, a local oscillating generating module and a reference distributing circuit, wherein the sampling ring is used for providing a 207-236 MHz sampling local oscillating signal for a sampler and sampling input radio frequency, the sampler module is an intermediate combination module of the sampling ring and the local oscillating generating module, and is used for executing frequency sampling and frequency spectrum shift, the direct digital synchronizing module is used for realizing the frequency resolution of the whole local oscillating and executing fractional frequency division, the local oscillating generating module adopts an economical broadband VCO and covers the frequency band of 5.0-10.0GHz, and the reference distributing circuit is used for providing frequency reference for the frequency synthetic modules through various frequency division circuits and frequency multiplier circuits. The problem that the frequency band, the resolution ratio and the frequency synthetic output frequency of the integrated tester are low in the related technology is solved.

The invention discloses a method for adjusting clock period and a computing system which belong to the computer field. The method includes: processing load monitor to a functional module of system and obtaining the load monitor result, when the result being busy, reducing clock period of the functional module; when the result being leisure, prolonging clock period of the functional module. The computer system includes: a load monitoring module and an adjustable module. The invention processes grade division to an adjustable distributing circuit for providing system clock period, changes the system clock period accordingly after processes load state monitor for each functional load state of large scale computer system, in particularly uses weighing computing aiming at memory module, constitutes adjustable scheme of the computer system clock period, and makes system optimizing effective working condition based on operation period of business, realizes purpose of reducing system energy consumption, and has great application value for saving energy consumption and reducing power consumption.

A distributing circuit distributes audio signals of a predetermined number of channels to audio signals of a predetermined number of channels. A first signal processing circuit processes audio signals that are output from the distributing circuit in parallel, reproduces the resultant signals with a plurality of speakers, and localizes sound images of the individual audio signals at predetermined positions. A second signal processing circuit inputs audio signals that are output to the plurality of speakers and performs signal processes equivalent to the transfer functions from the individual speakers to both the ears of the listener. The output signals of the second signal processing circuit are reproduced with the headsets.

A capacitive-load driving circuit has a configuration in which a driving power supply source is connected to an output terminal via a driving device. The capacitive-load driving circuit has a power distributing circuit inserted between the driving power supply source and the driving device. Therefore, temperature rise (power consumption) in the capacitive-load driving circuit can be distributed.

The invention discloses an array substrate and a liquid crystal display panel thereof. The array substrate comprises a display area and a peripheral wiring area, wherein a plurality of data lines are arranged in the display area, and at least one part of adjacent data lines of the plurality of data lines is applied with data driving signals withopposite polarities in the display process; a plurality of testing input ends and a testing distributing circuit are arranged in the peripheral wiring area; the testing distributing circuit is used for correspondingly connecting each testing input end to two data lines or more, so that each testing input end can apply testing signals to two data lines or more in the testing process; the testing distributing circuit is used for realizing the purpose that the data lines connected with each testing input end are applied with the data driving signals with same polarities in the display process. By adopting the type, the array substrate solves the problem of short-circuiting in the prior art because the positive and negative polarities of the two adjacent data lines are transferred to the same array testing point through a control switch in a polarity reversing mode.