322results about How to "Short delay time" patented technology

There is provided a transmit antenna array device with at least two antennas and a method thereof in which a transmission beam is appropriately formed based on a weight vector to be transmitted to a specific mobile station in a mobile communication system. For this purpose, a base station device has a reverse processor for processing a reverse signal received through the antenna array, a forward fading information extraction unit for extracting forward fading information from the received reverse signal, a beam formation controller for generating a weight vector for formation of a transmission beam using the forward fading information and the received reverse signal, and a forward processor having a transmission beam generator for generating a transmission beam for a transmission message based on the weight vector. A mobile station device has a forward processor for processing a received forward signal, a forward fading estimator for estimating forward fading information of the forward signal for each path, a forwarding fading encoder for combining the estimated forward fading information and encoding the combined forward fading information, and a reverse processor for multiplexing the encoded forward fading information with a transmission message and feeding back the forward fading information in the multiplexed signal to a base station.

A payment approval system and a method for approving a payment for credit cards are provided for providing efficient processing while maintaining accuracy in detection of fraud usage of credit cards with an IC chip. Fraud parameters obtained by modeling a pattern of fraud usage is stored in the IC chip equipped in the IC credit card to use for payment approval to achieve improved reliability of offline approval. When offline approval process finds a possibility of fraud usage, online approval for more detailed statistical analysis processing is requested to a host computer. When update information of the fraud parameter used for the judgment is transmitted together with the request for approval and the newest fraud parameter created by analyzing the newest transaction trend etc. is confirmed to have been updated at the host computer, the newest fraud parameter along with the approval result from the host computer is transmitted to the IC terminal to update the fraud parameter in the IC chip to the up-to-date state.

Methods and apparatus for mixing fluids are provided. The devices and methods operate without moving parts, and generate well-mixed fluids over a broad dynamic range of flow rates. Preferred embodiments include junction-type mixers, bundled mixers, and co-axial mixers. The devices and methods are optimized to produce rapid, accurate gradients to improve associated system throughput and reproducibility.

The invention discloses a realization method for mobile handover of a next generation of IP full wireless sensor network. The wireless sensor network comprises a gateway node, a fixed sensor node, a mobile sensor node and a correlative node of the mobile sensor node. The current correlative node of the mobile sensor node is used for carrying out mobile monitoring to the mobile sensor node; and when the mobile sensor node is about to being separated from a communication scope of the mobile sensor node, the correlative node is responsible for searching a next correlative node of the mobile sensor node and executing the mobile handover to ensure the accuracy and the continuity of the mobile sensor node during the communication. In the invention, the mobile handover control information is automatically routed through a network topology, so that the power consumption and the delay time brought by routing are saved. In addition, the mobile sensor node is not required to carry out care-of address and participate in the mobile handover control process, so that the energy is saved, and the service life is prolonged. The invention can be applied to various fields like agricultural facility modernization, medical heat care and the like.

The problem of transients can be addressed satisfactorily and a further decoding delay can be reduced for this if use is made of a new SBR frame class in which the frame limits (902a, 902b) are not shifted, that is to say the grid limits are still synchronized with the frame limits (902a, 902b), but in which a statement of the transient position is also used as a syntax element in order to be used, within the frames of this new frame class, to determine the grid limits within these frames at the coder and / or decoder end.

The present invention reduces the delay time to extremely short by monitoring the output / distribution unit of the exchange node to specify the unused time slot as write destination of the data and performing priority control by the priority control signal contained in the data. The traffic congestion is resolved by performing write output to the specified time slot regardless of the communication speed of the transmission path of the data. Furthermore, the present invention aims to provide the exchange node and the exchange node control method that ensures communication quality by using the connection type as the communication method since the delay time in communication can be reduced.The exchange node 100 according to the present invention includes an input buffer unit 2, an identification unit 7, a distribution unit 5, a multiplexing circuit 9, a time slot allocation circuit 12, and an output / distribution unit 10. More preferably, a frame compression circuit 16, a frame decompression circuit 18 and a priority determination circuit 20 are arranged.

A reciprocating two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and a scroll plenum extending unidirectional around the outside of the cylinder wall and having an inlet and a plurality of swirl ports disposed through the cylinder wall providing fluid communication from the scroll plenum into the cylinder chamber, wherein the plurality of swirl ports enter the cylinder chamber tangentially with respect to the axial centerline of the cylinder, and wherein the plurality of swirl ports are subject to opening and closing in response to movement of said piston.

The invention discloses a quick phototyping by laser cladding layer height measuring device and a closed-loop control method thereof. The quick phototyping by laser cladding layer height measuring device comprises three laser 2D (two-dimensional) displacement sensors, a control unit, an upper computer and a display. According to the closed-loop control method, the three laser 2D displacement sensors are spaced at an included angle of 120 degrees and mounted around a cladding bit for measuring the height of the cladding layers on the side lines of a closed laser equilateral triangle around a molten metal bath; every laser 2D displacement sensor is provided with a sensor controller for converting CMOS (complementary metal-oxide-semiconductor) image signals into height data and transmitting the height data to a control unit via an Ethernet network; the control unit is used for processing the data collected by the three laser 2D displacement sensors, computing the height of cladding layer and feeding the height back to the upper computer; the display is used for in real time displaying the height date measured by the three laser 2D displacement sensors and the layer height data processed by the control unit. The quick phototyping by laser cladding layer height measuring device and the closed-loop control method thereof achieves real-time precise control of the single-layer lifting capacity of the cladding bit.

The invention discloses a cross-machine-room data synchronism method which comprises a demand processing method of parallel processing and a long-distance synchronism method. According to the demand processing method, requests are processed by local sites, index key value used for unique location is built for changed data, and the index key value is added to a first in first out (FIFO) queue. According to the long-distance synchronism method, the corresponding changed data contents are found by the local sites according to the index key value in the FIFO queue, and synchronous instructions are sent to each long-distance site. The invention further discloses a cross-machine-room data synchronism system corresponding to the cross-machine-room data synchronism method. The cross-machine-room data synchronism method and the system have the advantages of being short in delay time and waiting time, low in energy consumption and correct in data synchronism of the long-distance sites from beginning to end.

To synchronize communications system components coupled via a communications network, a time information transmitter is provided which is used to transmit time information, possibly on request, relating to the communications system components. The communications system components each have a clock generator, which needs to be synchronized, and a real time clock, where the clock generator both determines the transmission rate for communications data which are to be transmitted and prescribes the time base for the real time clock. In addition, the communications system components each have a comparison device for comparing received time information with a current time value indicated by the real time clock, and a clock frequency controller for regulating the clock frequency of the clock generator on the basis of the comparison result.

A mobile station 100 monitors, in Slotted mode, a Paging Channel Slot in a monitor cycle. The mobile station 100 includes: a user interface 53 which receives a PTT setting operation from a user for setting a PTT (Push to Talk) mode; a PTT communication control unit 51 which transmits an allocation request to the radio base station when the PTT setting operation is received; a slot cycle switching unit 52 which switches, when the PTT setting operation is received, the monitor cycle to a predetermined short cycle which is shorter than a cycle at the time of receiving the PTT setting operation; and a voice signal processing unit 40 which receives a voice packet after a PTT CALL is detected in a message transmitted from the radio base station to the mobile station, and reproduces a voice based on the voice packet.

The invention provides a real-time dynamic measurement method for measuring radial clearance between a steam turbine rotor and a stator. The method is characterized in that the method comprises the steps of determining distance measurement devices for radial clearance, determining radial clearance between the rotor and the stator, determining the radial clearance between the rotor and the stator, determining the distance from an emitter to the surface of the rotor, calculating vertical offset amount of the rotor when the center of the rotor shifts, calculating horizontal offset amount of the rotor when the center of the rotor shifts, calculating the rotor offset amount at any position and calculating the radial clearance between the steam turbine rotor and the stator. The method can carry out dynamic measurement on the rotor labyrinth clearance and blade top labyrinth clearance of a running steam turbine accurately and quickly, thereby solving the problem that the measuring error of the radial clearance between the steam turbine rotor and the stator is large and the radial clearance cannot be measured online dynamically and accurately, ensuring safe and economical operation of the machine set and saving halt overhaul time.

A satellite attitude and orbit control system based on satellite network is prepared for sending transfer order for obtaining information to certain assigned intelligent sensor with microprocessor through satellite network for making satellite affairs dispatch unit obtain relevant information, sending control command to certain assigned intelligent execution element by dispatch unit through satellite network after calculation, executing said control command by intelligent execution element with microprocessor in order to make satellite be moved for realizing control purpose after control command is received by said execution element.

The invention discloses a magnetic suspension rotor harmonic current suppression method based on a composite friction repetitive controller. Firstly, a magnetic suspension rotor dynamical model which comprises mass unbalance and sensor harmonic is established. Secondly, the composite friction repetitive controller is designed. The controller is obtained through parallelly connecting a double-mode friction repetitive controller and a phase shift notch filter. The double-mode friction repetitive controller comprises two branches, namely an odd-order harmonic suppression branch and an even-order harmonic suppression branch. The odd-order harmonic and the even-order harmonic can be suppressed in an enhanced manner through distributing the value of a control gain, and dynamic response performance is improved. A friction time delay link is replaced by a friction time delay filter, thereby improving harmonic current suppression precision. Furthermore the phase shift notch filter is introduced for performing additional suppression on fundamental frequency current, thereby reducing current overshoot and improving harmonic convergence speed. The magnetic suspension rotor harmonic current suppression method can realize harmonic current suppression in a fixed rotating speed and is suitable for magnetic suspension rotor harmonic current suppression in which mass unbalance and sensor harmonic exist.

The DLL circuit detects a frequency of an external clock signal and adjusts a coarse delay during a DLL circuit operation, thereby quickly terminating a feedback operation of the DLL circuit and having a reduced circuit area of a delay line. Therefore, the DLL circuit can be used for next generation high-integration and high-frequency memory devices such as DDR2 SDRAMs.

A modulated signal is generated by performing pulse modulation of a drive waveform signal that is a reference for a drive signal to be applied to a capacitive load, and the drive signal is generated by performing power amplification of the acquired modulated signal and then smoothing the power-amplified modulated signal. Then, negative feedback of the drive signal applied to the capacitive load is applied to the drive waveform signal that is the reference for the drive signal. At this time, a predetermined analog compensation process for smoothing gain characteristics in a frequency band included in the drive signal is performed for the drive signal, then the acquired signal is converted into a digital signal, and negative feedback of the digital signal is applied to the drive waveform signal.

The invention discloses a height online monitoring device and closed-loop control method for laser cladding additive forming. The online monitoring device comprises a cladding forming unit and a monitoring control unit. The cladding forming unit comprises a laser device, a cladding head and a matrix. The monitoring control unit comprises an image taking unit, a connecting frame, an image processing unit, a control unit and an execution mechanism unit. In the closed-loop control method, the image taking unit is fixed to laser cladding equipment to move along with a cladding nozzle, images including the cladding nozzle and a molten bath in the cladding additive forming process are acquired in real time, and the image processing unit is utilized for carrying out pixel processing on the images; the outlines of the cladding nozzle and the molten bath in the cladding additive forming process are extracted, and the forming thickness of a single cladding layer is obtained; and the forming height of the formed cladding layer is obtained through layer-by-layer thickness accumulation, the lifting height of a cladding spray head of the next layer is corrected in real time in a self-healing interval, process parameters are optimized in good times, and forming height closed-loop control is achieved.

A time-to-digital converter includes at least one chain of delay elements, a status of which represents a digital signal relating to a time interval to be converted. The converter includes a provider for providing trigger signals having statistically equally distributed variable positions relative to a pulse forwarded in the chain of delay elements, a capturer for capturing the status of the chain of delay elements in response to the calibration trigger signals, the status depending on delay times of the delay elements, a determiner for determining an actual contribution of at least some of the delay elements to an overall delay of the chain of delay elements on the basis of occurrences of pulse positions in response to the calibration trigger signals. The converter is configured to take into account the actual contribution of at least some of the delay elements when converting the time interval into said digital signal.

The present invention reduces the delay time to extremely short by monitoring the output / distribution unit of the exchange node to specify the unused time slot as write destination of the data and performing priority control by the priority control signal contained in the data. The traffic congestion is resolved by performing write output to the specified time slot regardless of the communication speed of the transmission path of the data. Furthermore, the present invention aims to provide the exchange node and the exchange node control method that ensures communication quality by using the connection type as the communication method since the delay time in communication can be reduced.The exchange node 100 according to the present invention includes an input buffer unit 2, an identification unit 7, a distribution unit 5, a multiplexing circuit 9, a time slot allocation circuit 12, and an output / distribution unit 10. More preferably, a frame compression circuit 16, a frame decompression circuit 18 and a priority determination circuit 20 are arranged.

The invention discloses a method and a device for transmitting multi-channel service, which belongs to the technical field of light transmission. The method comprises the following steps: receiving bandwidth information of TCONTs (transmission container) of all nodes; dividing the payload zone of a GTH (general transfer system) frame into a preset number (n) of mathematical arrays, wherein each mathematical array includes a specified number of time slots, the interval between any two adjacent time slots in each mathematical array is n, and n is a natural number; calculating the time slot location of the mathematical arrays that the TCONT of each node occupies in the payload zone according to the bandwidth information of the TCONTs of all the nodes; and interleaving the TCONTs of the local nodes in the corresponding time slots from a specified frame according to the time slot locations of the mathematical arrays that the TCONTs of the local nodes occupy in the payload zone so as to obtain a GTH frame and transmit the GTH frame. The device comprises a receiving module, a bandwidth information processing module and a frame processing module. The invention can realize asynchronous adaptation of multichannel service through uniform distribution of time slots.

The invention discloses a laser cladding additive forming online monitoring device and a look-ahead-feedback control method. The online monitoring device comprises a cladding forming unit, a monitoring unit and a control system unit; the cladding forming unit comprises a laser device, a cladding head and a worktable, the monitoring device comprises a temperature measuring instrument, an image intake unit and a connection frame, the control system unit comprises a program pre-reading unit, a look-ahead control unit, an image processing unit and a feedback control unit; according to the controlmethod, the temperature measuring instrument and the image intake unit are fixed to the laser cladding device to move jointly along with the cladding head, and compared with axis feeding speeds calculated through the interpolation period in the program pre-reading process and the actual scanning line speed of the cladding head, according to the difference value, the laser power is subjected to look-ahead control, through monitoring of molten pool characteristic sizes obtained after pixel treatment of a molten pool image continuously shot by the image intake unit in the laser accumulation process and collecting of the molten pool center temperature collected by the temperature measuring instrument, the laser power is subjected to closed-loop feedback control.

The invention discloses a full-digital MEMS three-component geophone. The full-digital MEMS three-component geophone comprises a sealed waterproof shell, a control unit, a three-component wave detector, three signal conditioning circuits and three A / D converters, wherein the control unit is arranged in the sealed waterproof shell, the three-component wave detector is connected with the control unit and composed of three uniaxial MEMS sensors in an orthogonal mode, the three signal conditioning circuits are connected with the three uniaxial MEMS sensors in a one-to-one mode, and the three A / D converters are connected with the three signal conditioning circuits in a one-to-one mode through a multi-way simulation selector, and the three A / D converters are connected with the control unit. In addition, an inclination detection module and an inertia sensor are further connected to the control unit. By the adoption of the full-digital MEMS three-component geophone, the power supply internal management problems that in the prior art, a wave detector cannot consider posture method information and the multipurpose adaptability to the ground, logging and the like at the same time, cannot obtain internal temperature and humidity parameters in real time and is inefficient and high in power consumption are solved, and high practical value and research significance are achieved.

A reciprocating two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and a scroll plenum extending unidirectional around the outside of the cylinder wall and having an inlet and a plurality of swirl ports disposed through the cylinder wall providing fluid communication from the scroll plenum into the cylinder chamber, wherein the plurality of swirl ports enter the cylinder chamber tangentially with respect to the axial centerline of the cylinder, and wherein the plurality of swirl ports are subject to opening and closing in response to movement of said piston.

The embodiment of the invention discloses a delay unit, a voltage-controlled delay line and a delay-locked loop. The delay unit comprises multiple current hunger buffers connected in series. Load capacitors are connected between output of each current hunger buffer and a power voltage and between the output and the ground respectively in series. The voltage-controlled delay line is formed by cascading one or more delay units. The delay-locked loop comprises an offset generation circuit and the voltage-controlled delay line, the offset generation circuit outputs voltage control signals Vbp and Vbn controlling the voltage-controlled delay line, and the voltage-controlled delay line comprises an internal voltage-controlled delay line for phase locking and one or more parallel external voltage-controlled delay lines providing delay clocks, wherein the internal voltage-controlled delay line and the external voltage-controlled delay lines each comprise one or more cascaded delay units. The delay unit, the voltage-controlled delay line and the delay-locked loop are suitable for high-speed circuits, connecting lines on the high-speed clocks can be reduced through the delay-locked loop, and the problem that clock accuracy is insufficient due to the fact that the connecting lines are long is solved.

The invention discloses a process protection method and device. The process protection method comprises the following steps: establishing and starting a protection process for a host process of an application program by an electronic product; monitoring a protected process through the protection process; because the connection between the protected process and the protection process is interrupted when the protected process is interrupted, when the protection process monitors that the connection is interrupted, restarting the protected process. According to the process protection method and device, an alarm clock application program does not need to be frequently started to detect a background operating application program, so that the consumption of system resources is effectively reduced; in addition, when the protection process monitors that the connection is interrupted, the protected process is restarted immediately, the delay time of ensuring that the background operating application program is interrupted and restarting the background operating application program is short, so that the influence of the interruption of the background operating application program on data receipt of the background operating application program is greatly reduced, and the system performance is effectively improved.

A base station apparatus includes a base-station receiver which receives information indicating the occurrence of the given event in the wireless terminal device, the information being transmitted from the wireless terminal device using the common slot. The base station apparatus includes a base-station transmission and reception manager which determines the number of random slots assigned as random slots to transmit the bandwidth request information for the given event among random slots in the random access period, based on the occurrence of the given event received by the base-station receiver. The base station apparatus includes a base-station transmitter which transmits, in the base station apparatus, information on the assigned random slots to the wireless terminal device of random access period.

The invention relates to bacillus alcalophilus and an application thereof to fermentative hydrogen production. The steps of sludge and / or organic waste pretreatment and fermentative hydrogen production are adopted. The bacillus alcalophilus is characterized in that in the sludge and / or organic waste pretreatment step, bacillus alcalophilus liquid is inoculated in sludge and / or organic wastes, and bacillus alcalophilus hydrolysis pretreatment sludge and / or organic wastes are obtained after the treatment. In addition, the prepared bacillus alcalophilus hydrolysis pretreatment sludge can also be used as hydrogen production floras to be inoculated into the organic wastes for producing hydrogen through fermentation. A bacillus alcalophilus sludge pretreatment method can be effectively used for screening efficient hydrogen production floras in the sludge, inhabiting the growth of hydrogen consumption bacteria and killing pathogenic bacteria in the sludge and / or organic wastes. The sludge and / or organic wastes through all bacterial strain treatment has / have the large hydrogen generation quantity in the subsequent fermentative hydrogen production step, the purity of hydrogen gas is high, the delay time of the hydrogen production is short, and obvious economic values and development potential are realized.

The invention discloses a solution method for network search and service conflict for a multi-card multi-standby mobile phone and the multi-card multi-standby mobile phone. The solution method comprises the following steps of: in a network search process corresponding to a first user card, when a service quest corresponding to a second user card is received, judging that the service quest corresponds to active service or passive service; if the service quest corresponds to the active service, suspending processing the active service, and continuing the network search corresponding to the first user card; and if the service quest corresponds to the passive service, suspending the network search corresponding to the first user card, processing the passive service, and continuing the networksearch corresponding to the first user card after the passive service is completely processed. The multi-card multi-standby mobile phone comprises at least two user cards, a communication unit for transmitting communication information, a judgment unit and a micro control unit. The method avoids the influence of the network search process on the passive service, and reduces the influence of the network search on the active service at the same time.