46results about How to "Control delay time" patented technology

A radio transmitter / receiver having a QoS control unit for outputting the transmission data in order taking the quality of service (QoS) into consideration. In the case where the information transmission rate for a radio section is not lower than a threshold value, the QoS control operation of the transmission data is omitted, and the transmission data are output in the order of input. In the case where the information transmission rate for the radio section is lower than the threshold value, on the other hand, the QoS control mode is switched in accordance with the information transmission rate for the radio section.

The present invention relates to a dual roll blind enabling to control its light transmission amount and open and close with one ball-chain. The dual roll blind comprises a first screen and a second screen having light transmission portions and light shielding portions, respectively, a first winding bar and a second winding bar for respectively winding the firstscreen and the second screen, a first axis of rotation and a second axis of rotation to which the first winding bar and the second winding bar are respectively coupled, a first gear coupled to the first axis of rotation and rotationally driving the first winding bar, a second gear coupled to the second axis of rotation and rotating the second winding bar with rotating dependently on the first gear, a driving wheel rotating by a driving string and coupled to the first axis of rotation to transfer rotational force of the driving string to the first gear and the winding bar, a slide drive device engaging with the driving wheel to receive rotational force of the driving wheel and slide the first winding bar in a longitudinal direction of the first axis of rotation.

The invention discloses a method for editing a video file. The method comprises the following steps of: buffering acquired video sample and audio sample respectively; according to starting time sample and sample; picking up and decoding the video audio samples which are synchronized for previewing, simultaneously configuring a file header, generating a fragment file, continuously writing the video audio samples which are synchronized in the fragment file; and according to the information on whether the video sample in the fragment file is a key frame, determining a dividing point of the fragment file, adding the index information to the fragment file in which the video audio samples which are synchronized are written, and generating the whole fragment file. The invention also provides a device for editing the video file. Based on the method and the device, the video fragment file which is finally released can be generated when the video fragment file is being edited in real time, so that the release flow is shortened, and the editing efficiency is improved.

A method for plugging a permeable zone or leak in a subterranean formation comprises introducing into the formation a cross-linking composition which comprises (a) an aqueous liquid, (b) a pH buffer, (c) a cross-linkable organic polymer, (d) a cross-linking agent which comprises an organic titanate, an organic zirconate, or combinations thereof, and (e) a delay agent which is a hydroxyalkylaminocarboxylic acid. The method can be used over a wide range of pH conditions.

This invention constructs within the LAN a private area network (PAN) which is configured by terminal devices (personal computers and the like) of a specific group, is hardly influenced by the LAN traffic, and has high security. For this purpose, a PAN server which manages the communication route between specific terminals is installed within the LAN. The PAN server sets the communication route of each terminal device as label information, and causes switches and terminals to set pieces of label information generated for them. When the frame of data from a given port of each connection switch contains information representing PAN communication, the connection switch outputs the data to only a port specified by routing label information described in the frame.

A method for hydraulically fracturing a subterranean formation comprises introducing into the formation a cross-linking composition which comprises (a) an aqueous liquid, (b) a pH buffer, (c) a cross-linkable organic polymer, (d) a cross-linking agent which comprises an organic titanate, an organic zirconate, or combinations thereof, and (e) a delay agent which is a hydroxyalkylaminocarboxylic acid. The method can be used over a wide range of pH conditions.

A sound processing apparatus is provided for estimating the power of background noise using a directional sound receiving technology using a plurality of sound receiving units, computing a gain control value on the basis of the estimated power of background noise and a predetermined power target value, and outputting the gain control value, so that a delay time of starting gain control can be reduced, and a slow response of a speech recognition application program or degradation of the speech quality of a voice communication program can be prevented.

Provided is a method, system, and program for accessing rows of data from a base table satisfying a search criteria. An initial request to access rows in the base table is received, including the search criteria specifying predicates for one or more columns in the base table. A data structure is generated to include information on qualifying base table rows that satisfy the search criteria. Notification is provided that the qualifying base table rows are accessible before information on all the qualifying base table rows is included in the data structure. A request is then received for one qualifying base table row. A determination is made as to whether the data structure includes information on the requested qualifying base table row. If so, the information in the data structure is used to provide access to the requested qualifying base table row.

A delay circuit does not lead to excessive increase in the delay time even if the source voltage drops, and enables to control the delay time from increasing. The delay circuit is designed to delay a logic signal SIN having two logic levels consisting of a low level and a high level, such that the delay times are different for the high and low levels, and the circuit chooses either the low level or the high level and targets a logic level having a shorter delay time. That is, n-MOS transistors N11, N12 and p-MOS transistors P11, P12 are provided as MOS capacitors, so as to change from the off-state to the on-state during the transition period of a signal that appears on each node disposed on a delay path of logic signals. Such a circuit design enables to control source-voltage dependence of delay time so that, even if the source voltage drops, delay times are not increased excessively.

The invention discloses an aviation audio player and an aviation alarm system. The aviation audio player comprises a CPU (Central Processing Unit) module, an audio decoding module, a power supply module, an audio pre-recording module, an audio storage module and an alarm detection sensor module, wherein the audio pre-recording module and the audio storage module are used for inputting audio files into the audio decoding module respectively; the alarm detection sensor module is connected with the CPU module, and is used for detecting flight state parameters through an alarm sensor and inputting the flight state parameters into the CPU module for analysis; the CPU module is used for outputting a corresponding audio file reading instruction to the audio decoding module according to an analysis result of the flight state parameters; and the audio decoding module is used for reading the audio files according to the audio file reading instruction sent by the CPU module, and decoding the audio files. Through the aviation audio player, an audio playing function is realized, the aim of making alarms can be fulfilled without any peripheral complex system, direct and rapid multi-channel decoding control is realized, and the delay time is shortened.

A hysteretic DC / DC converter is proposed that operates at a high switching frequency without producing undesired pulse bursts at the output. The converter has a converter power stage with a supply voltage input, a controlled voltage output and an enable input. A comparator has a reference voltage input, a feedback input and an output, and a gating circuit connected between the output of the comparator and the enabling input of the converter power stage. The gating circuit inhibits as a function of load requirements the propagation of enabling pulses from the output of the comparator to the enabling input of the converter power stage. By gating the output of the comparator in a way to separate the output from the enabling input of the converter power stage immediately after the start of each conversion pulse, the generation of further pulses immediately after each conversion pulse is prevented, thereby keeping the output voltage ripple low.

Multiple multi-stage delay circuits each have n (n is an integer) output terminals. The multi-stage delay circuits each apply delay times to a corresponding input signal, and output, via n output terminals, n delayed signals to which different delay times have been applied. Multiple inverters invert the respective input signals. The multiple multi-stage delay circuits and multiple inverters are alternately connected in the form of a ring.

The invention relates to a hot working sequential controlled opening ignition spreading device. The hot working sequential controlled opening ignition spreading device comprises a manifold (1), a restrictive detonating fuse (2), a first output connector (3), a second output connector (4), a third output connector (5), a first delay tube (6), a second delay tube (7), a delay cord (8), a partition igniter (9) and a cutting cord assembly (10), wherein the manifold (1) is used for receiving detonating signals and converting into multiple channels so as to be transferred through the restrictive detonating fuse (2), and two transferring paths respectively include that the detonating signals are directly output to the partition igniter (9) through the first output connector (3) so that the cutting cord assembly (10) is operated and the detonating signals are sent to the first delay tube (6), the second delay tube (7) or the delay cord (8) for delay through the second output connector (4) and the third output connector (5) and then are output to the partition igniter (9) through the second output connector (4) and the third output connector (5) so as to ignite a next hot working element. The hot working sequential controlled opening ignition spreading device is suitable for a hot working device which has multiple functions for many times at different time periods.

The invention discloses a clock delay method, a clock delay device, a delay-locked loop and a digital clock management unit. The clock delay method comprises the following steps: step 1: delaying an input clock for Ti by a delay line to obtain an output clock; step 2: comparing the input clock with the output clock, returning to the step 1 to delay the input clock for (Ti+Tx) / 2 by the delay line again if the input clock is lagged behind the output clock, returning to the step 1 to delay the input clock for (Ty+Ti) / 2 by the delay line if the input clock is ahead of the output clock, and until the input clock is aligned with the output clock, outputting the output clock aligned with the input clock. According to the invention, by the technical scheme, a dichotomous successive approximation mode is adopted to realize alignment; N clock periods are required at most; under the condition with larger difference between the input clock and the output clock, a DLL (Dynamic Link Library) locking speed is improved and the working speed of a chip system is improved.

The invention discloses a synchronous defibrillation system and method for a defibrillator-monitor. The method comprises the following steps: controlling an electro-cardio controller to rapidly perform R-wave identification on an obtained digital electro-cardio signal, and setting the level of a first hardware IO (Input / Output) port as a corresponding level when the extreme point of R-waves is identified; controlling a defibrillation controller to detect whether the level of a second hardware IO port is a corresponding level or not, judging whether the electro-cardio controller identifies the extreme point of the R-waves or not, and controlling a defibrillation relay to be started; controlling the defibrillator-monitor to discharge in order to perform high-voltage defibrillation on a patient when the defibrillation relay is started. According to the synchronous defibrillation system and method for the defibrillator-monitor, the level of the first hardware IO port is adopted as a corresponding level by adopting a hardware way to serve as a notification signal, and the defibrillator-monitor is controlled to perform high-voltage defibrillation on the patient, so that delay in synchronous defibrillation can be effectively reduced, the delay time of synchronous defibrillation is effectively controlled, and the risk is lowered.

An ultrasonic imaging arrangement performs tentative scanning of ultrasound to the inside of a living body with delay time corresponding to average sonic velocity, calculates delay time error in a delay time error detecting circuit by using received signals from each channel to which delay control has been performed in a digital delay circuit, compares in a delay time comparing unit the calculated data with a plurality of delay time error data corresponding to various sonic velocities using sound velocity as the parameter stored before hand in a sound velocity-derived delay time error storing unit, selects among those sonic velocities the one matching the delay time error data with a sonic velocity selecting unit, and calculates the sonic velocity within the living body. The calculated sonic velocity is fed back to CPU, and the delay data on the delay applied in the ultrasonic scanning is provided to a delay circuit.

A control apparatus for an internal combustion engine can control an actual operating characteristic with high precision by shortening a response time thereof. The control apparatus capable of changing an actual phase angle of a camshaft by an OCV includes a crank angle sensor for detecting a crank angle of a crankshaft and generating a crank angle signal, an actual phase angle detection section for detecting the actual phase angle of the camshaft, an air flow sensor and a throttle position sensor for detecting an operating state of the engine, a target phase angle calculation section for calculating a target phase angle based on the operating state, and a phase angle feedback control section for calculating an operation amount to the OCV so as to make the actual phase angle coincide with the target phase angle. The phase angle feedback control section calculates the operation amount in synchronization with the crank angle signal.

The invention relates to a direct-current circuit breaker comprising a main loop device and an auxiliary loop device which form two current loops connected in parallel, wherein the main loop device comprises a first tripper, a first magnetic tripping system, a first main contact, a main mechanism, a second tripper, a second magnetic tripping system and a second main contact, and the main mechanism is used for controlling the actions of the first main contact and the second main contact; the auxiliary loop device comprises a current directing and auxiliary triggering device, a short delay element, an auxiliary mechanism and an auxiliary tripper, wherein the current directing and auxiliary triggering device is connected between the anode and the cathode of a power supply in series and is used for detecting load short-circuit current and deciding whether the auxiliary triggering action is carried out or not according to the value of the load short-circuit current; the short delay element is used for carrying out short delaying when the auxiliary triggering action is carried out, and deciding whether the overtime signals of delayed time are outputted or not according to the fact whether the action of the current directing and auxiliary triggering device is kept or not; the auxiliary mechanism drives the main mechanism to make corresponding tripping actions; and the auxiliary tripper is used for triggering the auxiliary mechanism to trigger according to the fact the overtime signals of delayed time are outputted or not. The invention relates to the direct-current circuit breaker with selectivity.

The invention relates to the improvement of a fire extinguishing bomb and a launcher taking compressed air as launching power. The fire extinguishing bomb and the launcher after improvement are characterized in that the fire extinguishing bomb is provided with a numerical control electrical fuze, the numerical control electrical fuze is provided with a microcontroller, a receiving antenna or an optical receiver, the fire extinguishing bomb can receive a program in a wireless manner, the launcher is provided with a communication device which can be in wireless communication with the fire extinguishing bomb, and after the fire extinguishing bomb is programmed, the program is started while the launcher emits a launch command, or after the fire extinguishing bomb is launched, a magnet is usedfor starting a countdown program when the fire extinguishing bomb passes through a launcher launch nozzle. In the detailed description of the invention, the fire extinguishing bomb is characterized inthat a bomb housing, an inner plug, and an empennage are made of a polymer material, and the empennage is a grid-type empennage in a combined form; the fire extinguishing bomb is programmed and immediately launched through wireless in the launcher; a coil on the numerical control electrical fuse is excited by the magnet at the launching nozzle; and a structure of a transmitting antenna or an optical communication assembly of the launcher is a fully integrated hand-held controller structure. The explosion of the fire extinguishing bomb over the fire field can be controlled after improvement.

A delay calculation method considering a net adjacent to a delay calculation object net of a semiconductor integrated circuit includes: an adjacent net internal resistance selecting step of selecting a combination of static state of an adjacent net driving cell; a coupling capacitance grounding step of multiplying a coupling capacitance by a coefficient obtained from an internal resistance of the adjacent net driving cell selected by the adjacent net internal resistance selecting step, and the like, and grounding the value obtained thereby as the coupling capacitance of the delay calculating object net; and a delay value deriving step of deriving the delay value from a circuit obtained by these steps. A problem of the delay calculation method that an accurate delay value cannot be obtained because in actuality, the adjacent wire whose potential fluctuates is approximated to zero potential is solved by this structure.

A server backup method and a backup system using the server backup method are provided. The server backup method includes continuously collecting a plurality of dirty pages during a running operation and determining a backup start time point according to a quantity of the collected dirty pages. The server backup method also includes suspending the running operation according to the backup start time point and executing a backup snapshot operation to generate a data backup snapshot corresponding to the dirty pages, and executing a backup transmission operation to transmit the data backup snapshot.

The intelligent bridge includes processor, memory, same number of network interfaces and network communication modules. The processor also includes a configuration control module. Based on received information of configuration, the configuration control module controls communication between network segment through connected interface corresponding to network communication module and other devices. Receiving all messages from network segment the network communication module located, the module sends out messages and receives communication scheduling under control of the configuration control module. The intelligent bridge can monitor, process and transmit all messages from different network segments; based on configuration information controls forwarding message, and insulates invalid message to be forwarded so as to raise performance for transferring message in real time. The configured bridge can be added to communication scheduling of the network segment the bridge located at.

The invention discloses a control circuit based on prolonging service lives of multiple electrochemical sensors. The control circuit comprises four transistors and four metal oxide semiconductor (MOS) switches. Five power supplies are arranged in the circuit; a power supply SVCC is supplied by a power supply circuit; a power supply SVCC-1, a power supply SVCC-2, a power supply SVCC-3 and a power supply SVCC-4 are used for providing voltage for the sensors and are connected onto four power wires of four sensors; base electrodes of the transistors are respectively connected onto four general input / output (I / O) ports of a microprogrammed control unit (MCU) through resistors; collector electrodes of the transistors are connected to second pins or fourth pins of the MOS switches SI9947DY; the emitting electrodes of the transistors are grounded; third pins of the MOS switches are connected onto the power supply SVCC; fifth pins and sixth pins or seventh pins and eighth pins of the MOS switches are connected to power ports of the sensors; and the power supply SVCC-1, the power supply SVCC-2, the power supply SVCC-3 and the power supply SVCC-4 are connected onto the respective power wires of the four sensors. The control circuit disclosed by the invention is simple in structure; the sensors are controlled by utilizing the general purpose input / output (GPIO) ports of the MCU to power up all the sensors periodically, therefore, the goal of prolonging the service lives of the electrochemical sensors is achieved.

A delay circuit controls a delay time according to variation of a power supply voltage. In the delay circuit, the capacitance of a capacitor connected in parallel to the delay line is changed according to the change of the power supply voltage. Alternatively, a current is made to flow through one path selected from a plurality of paths having different resistance between the input and the output of the delay line. Accordingly, the delay time can be independently controlled or adjusted by greatly changing the time taken to pass through the delay line according to the change of the power supply voltage.

A semiconductor device may be provided. The semiconductor device may include an input and output (I / O) circuit configured to output transfer data generated from input data as internal data based on a write enablement signal and configured to output error information on the input data based on the write enablement signal. The generation of the write enablement signal may be based on a write signal which may be delayed by a delay time according to whether an error correction operation is performed.

The invention discloses a femtosecond laser double-pulse glass welding strength enhancing system device, and belongs to the technical field of ultrafast laser. According to the technical scheme, an ultra-short pulse laser beam is divided into two cross beams which are perpendicular to each other through a spectroscope, the two cross beams are focused on the interface of a to-be-welded glass product, a computer conducts online monitoring, layered scanning is conducted according to a preset scanning path, an electric control one-dimensional motion platform is controlled to precisely regulate and control the delay time of the two beams of pulses, the scanning speed of ultrafast laser pulses generated by a high-repetition-frequency ultrafast laser is regulated and controlled, femtosecond laser single-pulse light beams are modulated to be converged at the connecting position of the to-be-welded glass product and spread towards the deep position of a to-be-welded glass product material, by adjusting the femtosecond laser pulse energy and scanning track parameters, and a melting effect is formed on the surface of the connection interface of the glass product to obtain molten pools with absorption effects of heat affected zones of different sizes, so that the to-be-welded laminated glass is welded together, and a compact welding seam is formed after cooling.

A sound processing apparatus is provided for estimating the power of background noise using a directional sound receiving technology using a plurality of sound receiving units, computing a gain control value on the basis of the estimated power of background noise and a predetermined power target value, and outputting the gain control value, so that a delay time of starting gain control can be reduced, and a slow response of a speech recognition application program or degradation of the speech quality of a voice communication program can be prevented.

An electrical contactor is provided comprising a first terminal having a fixed member with at least one fixed electrical contact; a second terminal; at least one electrically-conductive movable arm in electrical communication with the second terminal and having a movable electrical contact thereon; and an AC dual-coil actuator having a first drive coil drivable to open and close the movable and fixed electrical contacts, and a second non-drive coil feedback connected to induce a reverse flux to temper and stabilize a net flux, thereby enabling control of a delay time of the opening and closing electrical contacts so as to be at or adjacent to a zero-crossing of an associated AC load current

The invention provides a control method for realizing short delay time of the working voltage of near-field electrofluid dynamic printing. The method comprises: initialization is carried out, a working voltage of a near-field electrofluid dynamic printing device is inputted, and an actual voltage is obtained; according to the working voltage and the actual voltage, an error voltage is calculated;an input voltage model for shortening the working voltage delay time of the near-field electrofluid dynamic printing device is constructed to obtain an input voltage; the obtained input voltage is transmitted to a high-voltage power source of the near-field electrofluid dynamic printing device; the actual voltage of the high-voltage power source of the near-field electrofluid dynamic printing device is obtained and whether the obtained actual voltage is equal to the working voltage is determined; and if so, the near-field electrofluid dynamic printing device carries out pattern jet printing. The control method has the following beneficial effects: the delay time of the working voltage of the near-field electrofluid dynamic printing device is controlled effectively, so that the quality of the near-field electrofluid dynamic printing type pattern is improved.