80 results about "Channel gating" patented technology

The specification and drawings present a new method, system, apparatus and software product for dynamic gating of an uplink (UL) control channel, e.g., dedicated physical control channel (DPCCH) for increasing capacity of communications, e.g., wireless communications, wherein said gating is defined, using a predetermined criterion, by instructions provided by a network and by a transmission gap in a discontinuous data signal, e.g., transmitted on an enhanced dedicated channel (E-DCH).

A method, apparatus, system, network element, and software product are used to provide a traffic signal, such as a voice over internet protocol (VoIP) signal, via high speed packet access. The traffic signal is prepared and provided via a high speed transmission, and a control signal is gated to produce a discontinuous transmission. This reduces interference, and therefore increases traffic capacity.

The present invention discloses a laser radar device and a channel gating method thereof. The device comprises: a laser emission device having N semiconductor lasers arranged in an emission array andconfigured to emit N emission light, wherein the N semiconductor lasers are arranged on M emission circuit boards of the laser emission device, and M is smaller than N; an emission module configured to regulate the angles of the N emission light; a receiving module configured to regulate the angles of incident light; and a laser receiving device having N photoelectric sensors arranged in a receiving array and configured to receive the incident light regulated by the receiving module, wherein the position of the nth semiconductor laser in the emission array is the same as the position of the nth photoelectric sensor in the receiving array, the emission module and the receiving module have corresponding optical paths, and the emission light emitted by the nth semiconductor laser is incidentinto the nth photoelectric sensor after passing through a target object. The laser radar device and the channel gating method thereof are concise in installation process and convenient to achieve lowcost and miniature of the device.

The invention relates to a multichannel electrical impedance type plant water content monitoring system which comprises a hardware circuit, a measuring probe and a personal computer part. The multichannel electrical impedance type plant water content monitoring system is characterized in that the hardware circuit comprises a USB power supply module, a data transmission and control module and an impedance measuring module, wherein the USB power supply module supplies power to the hardware circuit after being connected with a personal computer; the data transmission and control module realizes channel gating switch control and data transmission; the impedance measuring module generates a frequency adjustable sinusoidal wave as an exciting source by a direct frequency synthesizing chip and obtains an impedance value by a self-balancing bridge circuit comprising an amplifier and a feedback resistor through analog multiplication and low-pass filtration, analogue-to-digital conversion and data processing; the measuring probe consists of a single-core shielded wire and a lamellar electrode; and the personal computer part is a control procedure interface, controls the hardware circuit andprocesses and displays measured data. The invention ensures simultaneous measure of multiple channels and has the advantages of non-invasive and long-term continuous monitoring, and the like.

The invention discloses a secondary electric power supply testing system and method. The system comprises a multi-channel gating switch and a load unit, wherein the multi-channel gating switch comprises N relays; the load unit comprises N paths of loads; the input ends of the relays are connected with the corresponding output ends of a controller respectively; the output ends of the relays are connected with the input ends of the loads; the output ends of the loads are in both-way connection with a main control computer through a digital multimeter and a digital oscilloscope; the main control computer is in both-way connection with the controller; input ports of the loads are correspondingly connected with all paths of a secondary electric power supply to be tested respectively. The secondary electric power supply testing method can rapidly finish testing the secondary electric power supply, excessive testing of personnel is not needed, requirement for a large amount of testing is met, and the advantages of convenience, high efficiency, rapidness and the like are achieved.

The invention discloses an analog-to-digital conversion error self-correction device and method. The device comprises a number of reference voltage input ends and analog signal input ends, an analog switch, a voltage follower, an analog-to-digital converter and a microcontroller. A number of reference voltage input ends and analog signal input ends are respectively connected with the analog switch. The analog switch is connected with the voltage follower. The voltage follower is connected with the analog-to-digital converter. The analog-to-digital converter is connected with the microcontroller. The microcontroller outputs a channel gating signal to the analog switch. According to the invention, deteriorated and uncontrollable accuracy of the analog-to-digital converter under the circumstances of inconsistent performances between analog-to-digital converter individuals, changed application environment and the like can be avoided, and dynamic compensation can be carried out on the conversion parameters of the analog-to-digital converter.

The invention discloses an MOS switch drive circuit for a series battery pack battery management system. The MOS switch drive circuit is located between any of cells of a series battery pack and a switch array voltage polarity conversion circuit of the battery management system to complete cell channel gating with an active balanced cell balancing function or cell voltage measurement function, andis characterized in that an MOS grid voltage in the circuit is controlled by utilizing adaptive voltage suspension, and controls different potential voltages by a control signal. The invention also provides an array consisting of the circuit; and the array utilizes a same set of circuit and serves requirements of cell voltage measurement and cell balancing, thereby simplifying a structure of thedrive circuit, and an ultimate purpose of reducing the cost and improving the system reliability is achieved.

This invention discloses a charging / discharging protective circuit for a secondary battery pack, having an over-charging / discharging voltage comparator, a reference voltage source and a battery status decision circuit. There is also a sampling circuit having a sequential pulse generator for generating pulses for selecting one of the batteries in the battery pack for testing purposes. The pulse generator provides M-channel gating pulses to the selection circuit of the battery under test and provides sampling pulses to the over-charging / discharging voltage comparators. The reference voltage source has a regulated output circuit. This invention uses time division inspection methods to provide a cost-effective solution for inspecting batteries in a battery pack.

The invention discloses a method and system for monitoring an aging test on a wireless distributed power source. The system comprises a main board and at least one auxiliary board used for being connected with aging vehicles, and the main board is connected with the auxiliary board in a communication mode. The auxiliary board comprises a microprocessor, a voltage collecting circuit, a temperature collecting circuit and a turn-off control circuit, and the voltage collecting circuit, the temperature collecting circuit and the turn-off control circuit are all connected with and controlled by the microprocessor. In the voltage collecting circuit of the auxiliary board, a plurality of signal input ends of a first multiplexer are connected with output voltage of multiple ways of test power sources of the aging vehicles respectively, the output end of the first multiplexer sequentially passes through an amplifying circuit and a first A / D convertor and is connected with an input port of the microprocessor, and the chip selection end and the channel gating end of the first multiplexer are connected with an output port of the microprocessor. The method and system for monitoring the aging test on the wireless distributed power source can support multi-way voltage collecting and multi-way temperature collecting on the aging vehicles, and complete automated tests of a plurality of switching power sources.

The invention relates to an LED array drive circuit, a drive chip, an LED display screen and a short-circuit point positioning method, and the drive circuit is used for assisting in detecting the position of a short-circuit point in an LED array, and comprises the LED array, a row drive array, a column drive module, a detection channel gating unit and a power supply, wherein the row driving arraycomprises a plurality of row channels, and the column driving module comprises a plurality of column driving channels for scanning and driving the LED array; the detection channel gating unit comprises a plurality of detection channels, and one detection channel is electrically connected with one column driving channel; and when the positions of the short-circuit points are detected, all the row channels are closed, one of the two column driving channels connected with the short-circuit points is opened, the other column driving channel is closed, the detection channel connected with the opened column driving channel is closed, and the detection channel connected with the closed column driving channel is opened, so that a path passing through the short-circuit points is formed. The position of the short-circuit point is greatly convenient to determine, the maintenance difficulty is reduced, and the maintenance efficiency is improved.

The invention discloses an automatic calibration system and method based on an LVDT sensor. The system comprises a constant-frequency constant-amplitude signal generation unit, a channel gating and LVDT driving unit, an access gating low-noise pre-amplification unit, a programmable gain unit and a microprocessor unit, wherein the output end of the constant-frequency constant-amplitude signal generation unit is connected with the input end of the channel gating and LVDT driving unit; the output end of the channel gating and LVDT driving unit is connected with the input end of the access gatinglow-noise pre-amplification unit; the output end of the access gating low-noise pre-amplification unit is connected with the input end of the microprocessor unit; the output end of the microprocessorunit is connected with the input end of the channel gating and LVDT driving unit and the input end of the programmable gain unit; and the output end of the programmable gain unit is connected with theinput end of the access gating low-noise pre-amplification unit.

The invention relates to a testing system capable of carrying out electric burn-in testing and parameter testing on a photoelectric coupler. The testing system is composed of a PC machine, a testing channel gating module, a plurality of burn-in circuits, a plurality of parameter detection circuits and a photoelectric coupler plugging board. The testing system has the following beneficial effects: the testing system is capable of carrying out electric burn-in testing and parameter testing on a photoelectric coupler; the testing operations can be simplified; and the testing efficiency can be improved.

The invention relates to the field of communications and particularly relates to a communication channel gating method of a serial port master-slave communication control system. The serial port master-slave communication control system comprises a master control card and at least one slave card in communication connection with the master control card, wherein each slave card is provided with a plurality of serial ports, the master control card sends a control command containing a slot number of the slave card and port numbers of the serial ports to each slave card, and after the slave card identifies the received control command, the slave card matched with the control command opens a corresponding serial port per se according to the control command, and the gating process of the entire communication channel has the advantages of high efficiency and low cost.

The invention discloses a multi-channel MEMS (Micro-Electro-Mechanical System) gyroscope calibration test data collection device. A processor communication interface of a CAN (Controller Area Network)transceiver of the multi-channel MEMS gyroscope calibration test data collection device is connected with a CAN controller interface of a DSP (Digital Signal Processing) processor; a first channel gating signal communication end of the DSP processor accesses a gating signal interface of each MEMS gyroscope angular rate sensor of a first MEMS gyroscope angular rate sensor group through a level translator; a second channel gating signal communication end of the DSP processor accesses a gating signal interface of each MEMS gyroscope angular rate sensor of a second MEMS gyroscope angular rate sensor group through a level translator; and each SPI (Serial Peripheral Interface) communication interface of the DSP processor is connected with an SPI communication interface of the corresponding MEMSgyroscope angular rate sensor through a level translator. The multi-channel MEMS gyroscope calibration test data collection device realizes rapid MEMS gyroscope calibration test data collection withmultiple channels.

The invention discloses a multi-channel bandwidth and gain adjustable signal processing system and method, and belongs to the technical field of electronics. The system comprises a low-pass module which is used for the low-pass filtering of a microwave voltage signal; a control module which performs channel gating on a first analog switch chip signal according to an upper computer signal and a '1'or '0' signal transmitted by a voltage comparator, and selects different to-ground resistances of an adjustable gain amplifier; the adjustable gain amplifier which amplifies the microwave voltage signal after gain and bandwidth selection and transmits an output voltage signal to the voltage comparator; and the voltage comparator which is used for judging whether the output voltage signal reachesa reference level or not, outputting the '1' signal to the control module if the output voltage signal reaches the reference level, and outputting the '0' signal if the output voltage signal does notreach the reference level. According to the present invention, the gain and the bandwidth are independently adjusted, the dynamic range of a microwave receiver is wider, and the signal stability is not influenced.

An existing commercialized prosthetic hand system has developed a more attractive appearance and enough driving degrees of freedom, and can meet the daily life of amputated patients, however, the existing commercialized prosthetic hand system generally lacks an effective sensory feedback function, and prosthetic hand equipment cannot be incorporated into proprioceptive mapping. On one hand, a disabled patient is easy to generate a control fatigue feeling and a psychological conflict emotion in the use process, so that the phenomenon that the use frequency of dexterous hand equipment is greatly reduced or the dexterous hand equipment is abandoned is caused; and on the other hand, the deficiency of multiple sensory feedback such as pressure sensation and position sensation also causes that the patient cannot make fine actions such as pinching, grasping and touching in real time, which becomes a key technical link urgently needing to be solved in the current artificial hand research field. The invention provides a multi-channel electrical stimulation system and stimulation method for dexterous hand touch sense and position sense feedback, which can output multi-channel portable electrical stimulation equipment with high real-time performance and wide frequency, and specially designs a multi-channel gating circuit for expanding the number of constant voltage source stimulation channels. The contradiction between the oversize circuit size and the portability requirement of an artificial hand system is solved; meanwhile, a current monitoring circuit is designed in a matched mode, and the current gathering phenomenon caused by skin impedance change or electrode falling is prevented.

The invention discloses a small short-wave preselector, which comprises a basic resonant circuit preceding stage, a basic resonant circuit backward stage, a low-noise amplification circuit, a switching diode capacitor array, a triode driving circuit, a singlechip main control circuit and radio frequency signal channel gating switches, wherein an input radio frequency signal passes through a first radio frequency signal channel gating switch and then is transmitted to the basic resonant circuit preceding stage for frequency selection, and a useful signal is output; and the useful signal is amplified by the low-noise amplification circuit and subjected to frequency selection output through the basic resonant circuit backward stage and a second radio frequency signal channel gating switch. According to the small short-wave preselector provided by the invention, in a filtering system module of a receiver, a useless signal near a required frequency can be suppressed, and the sensitivity of the receiver is improved.

The invention discloses a phase change material-based 2 * 2 optical waveguide switch and a preparation method thereof. A 2 * 2 optical switch unit waveguide structure is arranged on a substrate, two waveguides are distributed in an axial symmetry mode and comprise two input ports and two output ports, and a coupling area is arranged between the two waveguides; and a uniform hundred-nanoscale Ge2Sb2Se4Te1 thin film consistent with the components of the target material is prepared in a coupling region by adopting a pulse laser deposition method. The switch unit is controlled by the phase change material covering the waveguide in the coupling area, the phase state of the phase change material is switched to complete the functions of dual-channel selection input, dual-channel gating and mode switching for the transverse electric fundamental mode, and the function of same-side port input and same-side port output for the transverse magnetic fundamental mode is met. The invention has the characteristics of high extinction ratio, small size and high switching speed.

The invention provides a launch control device and method suitable for dual-missile launch. The launch control device comprises: a first transceiver module, a second transceiver module, a DSP processor module, a gating module, and an upper computer module; the first transceiver module is connected with the DSP processor module; the upper computer module and the DSP processor module are connected in series through the second transceiver module; the gating module is connected in series with the DSP processor module and the upper computer module, respectively, and the gating module outputs the information of any one information channel or any number of information channels to the upper computer module according to a gating instruction and real-time information output by the upper computer module. The launch control device provided by the invention is reasonable in design and is convenient to use, provides an information channel gating function, especially a video gating function, in a missile launch process, which is beneficial to controlling the missile launch in a missile weapon system with an optical imaging guide device.

The invention discloses a multi-channel self-adaptive high-precision LVDT data acquisition and measurement system and method. The system comprises a constant-frequency constant-amplitude signal generation unit, a channel gating and LVDT driving unit, an access gating low-noise pre-amplification unit, a programmable gain unit, a true virtual value rapid sampling unit, a motion direction discrimination unit and a microprocessor unit. The constant-frequency constant-amplitude signal generation unit is connected with the channel gating and LVDT driving unit; the channel gating and LVDT driving unit is connected with the access gating low-noise pre-amplification unit; the access gating low-noise pre-amplification unit is respectively connected with the true virtual value rapid sampling unit andthe motion direction discrimination unit; the true virtual value rapid sampling unit and the motion direction discrimination unit are respectively connected with the microprocessor unit; the microprocessor unit is respectively connected with the channel gating and LVDT driving unit and the programmable gain unit, and the programmable gain unit is connected with the access gating low-noise pre-amplification unit.

The invention discloses a dual-port RAM (Random-Access Memory) reading-writing channel switching and distributing module having a program-controlled function. The dual-port RAM reading-writing channel switching and distributing module comprises a one-to-many dual-port RAM address / control / data signal distributor, a channel gating control address buffering sub-unit, a dual-port RAM address / control signal receiving and buffering sub-module, a dual-port RAM address / control signal transmitting and buffering sub-module, a dual-port RAM data signal bilateral buffering sub-module A, a dual-port RAM data signal bilateral buffering sub-module B, an indicating circuit sub-module, a clock circuit and a power supply sub-unit. Through adoption of the dual-port RAM reading-writing channel switching and distributing module, time-sharing multiplexing of one channel of a dual-port RAM communication card can be realized; a function of serial communication with dual-port RAM storages of over one set of tested products is realized; the quantity of dual-port RAM communication cards in a test computer system of over one set of tested products is reduced; the hardware cost is saved; the cost performance is high; and convenience is brought to integration and application.

The invention discloses an information transmission method. The information transmission method includes the steps that a distributed system further comprises a UART channel gating unit which is connected with a master control unit and a forwarding engine unit through a UART port; a UART channel is established between the master control unit and the forwarding engine unit through the UART channel gating unit and used as a backup of an IPC channel; under the condition that an IPC is interrupted, key information transmission between the master control unit and the forwarding engine unit is guaranteed. Based on the same inventive concept, the invention further provides a device. When heartbeats of the forwarding engine unit are abnormal, the master control unit can interfere with the forwarding engine unit, and the forwarding engine unit can rapidly restore.

The invention provides a circuit channel gating control method and device, and a vehicle-mounted navigation positioning system. The method is applied to vehicle-mounted navigation and positioning equipment, and the vehicle-mounted navigation and positioning equipment at least comprises an active antenna circuit channel and a passive antenna circuit channel. The method comprises the following steps: detecting whether an insertion signal of an active positioning antenna exists in the vehicle-mounted navigation positioning equipment or not; under the condition that the insertion signal of the active positioning antenna is not detected, outputting a low-level switch control signal; disconnecting the output of the power supply module according to the low-level switch control signal, and gating the input of the positioning module to the passive antenna circuit channel; under the condition that the insertion signal of the active positioning antenna is detected, outputting a high-level switch control signal; and closing and conducting the power supply module according to the low-level switch control signal, and gating the input of the positioning module to the active antenna circuit channel. By adopting the method disclosed by the invention, the use is more convenient, and the robustness of receiving the positioning signal of the vehicle-mounted navigation positioning equipment is improved.

A method of supporting reverse channel gating in a BS (Base Station) of a mobile communication system. At a handoff from a first BS to a second BS, the first BS transmits to the second BS information about whether an MS (Mobile Station) transmits data on the channel to the first BS in a reverse gating mode. The second BS determines whether to support the reverse gating mode after the handoff. Then the second BS transmits to the first base station a handoff request acknowledgement message including information whether the second BS supports the reverse gating mode after the handoff.

The invention discloses a gating switch time sequence generating circuit in a multi-channel infrared detector reading circuit. The gating switch time sequence generating circuit only has one externalinput signal, namely, a clock signal INT. The gating switch time sequence generating circuit is divided into two parts, wherein the first part is an input code generating circuit which is controlled by a clock signal and used for generating an input code of a decoder; and the second part is a decoding circuit which is used for decoding the input code and successively outputting a gating signal. According to the circuit, only one external input clock signal INT is needed to output the control time sequence of the multi-channel gating switch in addition to a power supply VDD and a ground VSS, and the pulse width of the output signal can be controlled by the INT, that is, the single-channel gating time is controllable. According to the invention, the input signals are few, the structure is simple, the output signal can be controlled by the input signal, the complexity of the overall design of the reading circuit is reduced, and the realization of integration and intellectualization is more facilitated.

The invention provides a method for realizing modularized plug-and-play of a satellite power control and distribution unit, belonging to the field of a satellite power supply system, and solving the problems that the research period of an existing satellite power supply system power control and distribution unit is long and the satellite task requirements cannot be rapidly responded to. According to the device, a lower computer and N extended function modules are assembled and integrated by a back plate; the lower computer and the N extended function modules realize data transmission through an inner bus circuit; the inner bus circuit comprises an inner bus main interface circuit, a module enabling coding simulation channel gating circuit and N inner bus sub-interface circuits; the inner bus main interface circuit is mounted in the lower computer; the module enabling coding simulation channel gating circuit is mounted in the back plate; each extended function module is internally provided with the inner bus sub-interface circuit; the inner bus sub-interface circuits are connected with all the inner bus sub-interface circuits through the module enabling coding simulation channel gating circuit. The method provided by the invention is applicable to modularized extension and rapid integration of the power control and distribution unit.

The invention discloses an earth station electromagnetic environment interference measuring device, and relates to the technical field of radio communication. The device comprises a supporting device,an azimuth rotating platform, a standard gain receiving antenna, a polarization adjusting device, a dual-channel gating switch, a low-noise amplifier, a multi-channel matrix gating switch and a turntable controller. The device has the characteristics of simple structure, small size, light weight, convenience in operation and low processing cost, can realize measurement of multi-band interferencesignals, obtains the nature of an interference source and the infinite radiation compatibility of a selected station address and various interference sources, and finally determines whether the earthstation address meets the station building requirement or not. The device is especially suitable for early-stage electromagnetic environment interference source measurement during earth station antenna station building, and can provide important reference basis for earth station design, building and construction.