128results about How to "Resolve change" patented technology

A light emitting display apparatus and method for driving same is provided. In one embodiment, the light emitting display apparatus includes a plurality of pixel circuits, wherein each of the pixel circuits includes a light emitting device, a driving transistor having a first electrode coupled to the light emitting device and a second electrode coupled to a first power voltage supply line, a compensation capacitor having a first terminal coupled to a gate electrode of the driving transistor, a first switching device configured to provide a voltage from the second power voltage supply line to a second terminal of the compensation capacitor in response to an initialization control signal, and a second switching device configured to provide a data signal to the second terminal of the compensation capacitor in response to a scan signal, wherein the first power voltage supply line and the second power voltage supply line are electrically coupled.

Provided is a technique capable of changing resolution or an imaging area during imaging, in an acoustic wave acquiring apparatus using a Fabry-Perot probe. An acoustic wave acquiring apparatus includes a measurement light source emitting measurement light, a probe having a Fabry-Perot interferometer including a first mirror, upon the side of which the measurement light is incident, and a second mirror, upon the side of which an elastic wave from an object is incident, an optical system changing a beam diameter of the measurement light, a controller controlling change in the beam diameter performed by the optical system, a photosensor measuring a light intensity of the measurement light reflected on the Fabry-Perot interferometer, and a processor acquiring intensity of the elastic wave on the basis of change in the light intensity measured by the photosensor due to incidence of the elastic wave.

An optical measuring device for determining temperature in a cryogenic environment includes at least one optical waveguide provided with at least one fiber Bragg grating sensor that is interrogated by a light signal. The device includes a light injector that injects light into the at least one fiber Bragg grating sensor, and an evaluation unit that determines a temperature value from the modulated light signal emanating from the at least one fiber Bragg grating sensor. The device includes at least one jacket that non-rigidly encloses the optical waveguide, at least in the region of the at least one fiber Bragg grating sensor. The jacket has a larger coefficient of thermal expansion, at least at cryogenic temperatures, than the optical waveguide. A winding arrangement for use in a cryogenic environment is provided with such a device for temperature monitoring of a conductor of the winding arrangement.

The invention discloses a dynamic zero miller compensation linear voltage regulator circuit based on a zero adjusting resistor. A PMOS (positive channel metal oxide semiconductor) working in a linear area serves as the zero adjusting resistor, the resistance value of the zero adjusting resistor varies with output current, so that zero led in through the zero adjusting resistor and a second pole of a feedback loop to cancel each other under the condition of different loads, and the stability of the feedback loop is guaranteed, and the bandwidth of the feedback loop is enlarged.

The invention discloses an adaptive current protection algorithm. The adaptive current protection algorithm comprises the following steps: (1), when a short-circuit fault occurs, enabling a protective action program; (2), by the protective action program, extracting one or a half of cycle of protection-level voltage sampling data and protection-level current sampling data, and calculating three-phase voltage and current phasor; (3), calculating and extracting negative-sequence/zero-sequence voltage and current phasor in the one or half of cycle; (4), calculating system negative-sequence, zero-sequence impedance; (5), calculating a protected real-time setting value by utilizing the system negative-sequence, zero-sequence impedance, which are calculated in step (4) according to preset line impedance, system potential, opposite-side system impedance (only applied to zero-sequence current protection) and setting value calculation formulas; (6), comparing the real-time calculated setting value with the current phasor calculated in step (3), and judging whether protection can be enabled; if judging the protection can be enabled, tripping the protection. The adaptive current protection algorithm solves a problem that the current protection utilizes a fixed setting value, achieves relative fixation of a protection range and has a certain of popularization significance and practical significance.

A gas concentration measuring apparatus for use in air-fuel ratio control of automotive engines is designed to determine the concentration of oxygen within a wide and a narrow range using a sensor current flowing through a sensor element. The apparatus includes an amplifier circuit equipped with an operational amplifier and a plurality of amplifying resistors and a switch. The switch is responsive to a request signal to switch a relation in electrical connection between an operational amplifier and the amplifying resistors to distribute the amplifying resistors into an input resistor and a feedback resistor for the operational amplifier to change an amplification factor of the amplifier circuit. This results in a change in resolution of measurement of the concentration of oxygen, thereby ensuring enhanced accuracy in determining the concentration of oxygen in a selected one of the narrow and wide ranges.

An apparatus for inspecting drawing accuracy in a liquid droplet ejection apparatus performs drawing by ejecting a function liquid droplet while moving a function liquid droplet ejection head relative to a workpiece by using a moving mechanism. In response to the relative movement, a laser irradiating mechanism performs visually recognizable stippling on the workpiece by irradiating coherent light thereon. A control part drives the laser irradiating mechanism for stippling at a predetermined frequency timing.

The present disclosure relates to a velocity interferometer. The interferometer described herein, comprises of two optical cells, one partially containing a liquid. The light entering the interferometer is amplitude split and made to propagate through the two cells in such a way that the apparent path lengths of the beams are equal, thereby fulfilling the condition necessary for obtaining single wide fringe in the interference pattern of the two beams. However, due to difference in the physical path traversed by the two beams, a finite delay time exists between them. The two beams, after reflection from end-mirrors or cube corner prisms in the two cells are recombined to form interference fringe patterns on active areas of multiple detectors. Doppler shifted light resulting from reflection of light from a moving projectile generate fringe shifts on the detector planes thereby producing voltage signals proportional to instantaneous velocity of fast moving projectile. The voltage signals are recorded with multi-channel digital oscilloscope and processed in a processor/controller of a computing unit to obtain velocity time history of the projectile. Controlled motion of the cube corner reflectors placed at the ends of two cells using stepper motors and piezoelectric actuators ensures that the time delay between the interfering beams is controlled accurately thereby changing the sensitivity range and time resolution of the velocity measurements.

The invention discloses a method and device for a compatible protocol. The method includes: a middleware receiving a handshake message which is sent by a server to a client; the middleware judging whether the version of a communication protocol adopted by the server is higher than the version of a communication protocol adopted by the middleware; if the version of the communication protocol adopted by the server is higher than the version of the communication protocol adopted by the middleware, then the middleware adjusting version information of the communication protocol adopted by the server in the handshake message so that the version of the communication protocol adopted by the server is identical with the version of the communication protocol adopted by the middleware; and the middleware sending the handshake message to the client so that the server is enabled to communicate with the client through adoption of the communication protocol of an adjusted version. The method and device for the compatible protocol solve a problem that parsing codes of the communication protocol of the middleware always change with the change of the communication protocol and realize that the middleware is compatible with the client and the server-side, which adopt a communication protocol of a new version, at an extremely low cost.

The invention discloses a laser interference control method for a grating mechanical ruling engine, belongs to the field of mechanical ruling plane diffraction grating manufacturing, and aims at solving the problems that the ruling positioning accuracy is influenced by the tilt angle of a worktable and the rapid control requirement of a grating ruling position cannot be met in the prior art. The laser interference control method disclosed by the invention comprises the following steps of firstly performing operation debugging on the grating ruling engine; measuring the relative position change between a reference mirror and a strip measurement mirror through a grating graver interferometer in a ruling process; measuring the relative position changes between two worktable interferometers and the strip measurement mirror in the direction of Z axis by the two worktable interferometers respectively; performing real-time adjustment on the position of the grating graver by a grating graver piezoelectric actuator according to the position measurement result of the grating graver interferometer; performing tilt angle correction on the worktable by two worktable piezoelectric actuators according to the position measurement results of the two worktable interferometers respectively; implementing hardware control operation of the worktable piezoelectric actuators and the grating graver piezoelectric actuator through an FPGA (field programmable gate array).

The application discloses a comparison method and device of file differences. The method includes: obtaining file contents of a file before a change and file contents after the change; converting thefile contents before the change to a first matrix, and converting the file contents after the change to a second matrix; acquiring a first feature vector of the first matrix and a second feature vector of the second matrix; converting the first matrix to a first hash table according to the first feature vector, and converting the second matrix to a second hash table according to the second featurevector; and determining the differences of smallest structure units of the file contents before the change and the file contents after the change according to a comparison result of the first hash table and the second hash table. Through the method, the problem that in the related art, version management software cannot quickly find changes of smallest structure units of file contents before andafter file changes is solved.

The invention relates to a dense-medium coal separation method. The method comprises the steps that firstly, the liquid level of a coal slime qualified medium barrel is kept to be higher than the liquid level of a raw coal qualified medium barrel; secondly, the undersize fractional flow of a cleaned coal medium drainage curve screen is controlled to be 1.15-1.2 times of the input amount of a coal slime dense-medium cyclone, so that the coal slime qualified medium barrel is in an overflow state all the time during production; thirdly, the overflow of the coal slime dense-medium cyclone is purposefully led into a cleaned coal magnetic separator or the raw coal qualified medium barrel; fourthly, cleaned coal magnetic separation tailings are led into a cone tank with a deep cone angle for primary fine particle classification, and low-density high-ash fine slime is removed, wherein the overflow particle size is -0.10 mm size fraction, and the underflow is 1-0.10 mm size fraction; fifthly, the underflow (1-0.10 mm) part of the cone tank with the deep cone angle is conveyed to a high-frequency electromagnetic undersize sieve through a pump and secondary fine particle classification is conducted for removing high-density high-ash fine slime. According to the dense-medium coal separation method, the problems about separation and classification of fine coal (0.1-0.075 mm) are effectively solved. The work conditions of the flotation link are improved; the ash content of flotation tailings is effectively increased by setting the processing power of a flotation machine.

The invention discloses a network access method and device for intelligent equipment and the intelligent equipment. The method comprises the following steps: starting a hot-spot mode; receiving access point information and a first IP (Internet Protocol) address and an MAC (Media Access Control) address of a user terminal; switching the hot-spot mode to a terminal mode; constructing a request message of a DHCP (Dynamic Host Configuration Protocol) by using the first IP address and the MAC address of the user terminal, and sending the request message to an access point; acquiring a second IP address of the user terminal according to a return result of the access point; and building a communication with the user terminal through the second IP address of the user terminal. Through adoption of the network access method and device for the intelligent equipment and the intelligent equipment, the problem that the IP address is changed when the user terminal is reconnected with the access point is solved according to the features of the DHCP, and the network access success rate of the intelligent equipment is increased greatly. The network access method and device for the intelligent equipment and the intelligent equipment are independent of hardware equipment such as wireless routers and chips, and have the characteristic of wide application range.

The invention discloses an air interface synchronizing method, device and system used for solving a problem that change of synchronization information carried in SIB signals cannot be detected timely by to-be-synchronized base stations of other operators in the prior art. The method includes that when a to-be-synchronized network element detects no listening RS of a synchronization source network element at a predetermined resource position for detecting listening RS of reference signals, the to-be-synchronized network element detects SIB signals of system message blocks of the synchronization source network element and acquires synchronization information carried in the SIB signals, wherein the synchronization source network element is selected from at least one network element of a foreign operator by the to-be-synchronized network element; the to-be-synchronized network element updates its synchronization information according to the synchronization information carried in the SIB signals or reselects the synchronization source network element from the at least one network element of the foreign operator.

The invention provides a cross-language document similarity detection method, and belongs to the technical field of document similarity comparison. The method comprises the following steps: firstly, respectively converting a source document and a target document to be compared into intermediate documents based on the same language word; searching similar intermediate representation sets between the two intermediate documents so as to establish a mapping set; and finally finding out similar text sections between the source document and the target document through the mapping set according to amethod of searching the similar text sections. The cross-language document similarity detection method provided by the invention has the beneficial effects that the difficulty in cross-language document similarity detection can be better solved and better detection results can be obtained.

The invention discloses a light-emitting diode (LED) illuminating device and a light regulation method thereof. The LED illuminating device comprises at least two LED luminotron sets inside. The light regulation method comprises the following steps of: receiving a control command sent by a remote control device, wherein the control command indicates total brightness to which the LED illuminating device needs to be adjusted; respectively multiplying current brightness ratios of all the LED luminotron sets and the total brightness to which the LED illuminating device needs to be adjusted to obtain brightness to which every LED luminotron set needs to be adjusted, wherein the brightness ratio refers to a specific value of the brightness of the LED luminotron sets to the total brightness of the LED illuminating device; and respectively regulating all the LED luminotron sets to the corresponding brightness to which the LED luminotron sets need to be adjusted. According to the LED illuminating device and the light regulation method thereof disclosed by the invention, an effect that colors cannot be influenced when the brightness of the LED illuminating device is adjusted is achieved, and the problem that the colors can be changed when the brightness of the LED illuminating device is adjusted in the prior art is solved.

An order placement and delivery system is provided in which a final delivery address of a recipient is obscured or not known to a sender. The sender places an order for a gift against the unique sender identity, relays to the administrator a recipient's virtual contact address, and constructs a personal message which is routed to the virtual contact address. The point of origin of the personal message is inferred to be directly from the sender. The personal message forewarns the recipient that they will be messaged by the administrator to acquire a real-world physical address that will be used for physical gift delivery and stored in the database against the virtual contact address, such that future orders identifying the recipient's virtual contact address can be dispatched expeditiously to the recipient's physical address with reduced messaging overhead and without having to reveal the recipient's physical address to the sender.

The invention provides a comparator clock generation circuit of an SAR ADC. The comparator clock generation circuit comprises a signal input module, a time delay module, an adjusting module and a clock module. The signal input module is used for providing a first control signal Clke for the adjusting module; the time delay module is used for generating a third control signal Clki according to a sampling signal Clkin of the SAR ADC and a second control signal Clkinn, wherein the second control signal Clkinn is an inverting signal of the sampling signal Clkin; the clock module is used for generating a clock signal Clko (i) according to the second control signal Clkinn and the third control signal Clki; the adjusting module generates a fourth control signal Clk according to the first controlinput signal Clke and the clock signal Clko (i), and the fourth control signal Clk serves as an input signal of the comparator. When the SAR ADC is in a high-speed sampling state, the comparison clockof the comparator generated by the comparator clock generation circuit also works in a high-frequency state, and the requirement of the SAR ADC for high-speed conversion is met.

The invention provides a rotating angle adjusting device for a mandrel bar loosening mill. The rotating angle adjusting device for the mandrel bar loosening mill comprises a platform (10), a rotary disk (1), tapered wedges (4), a locking hydraulic drive unit and a rotating angle oil cylinder (9). The platform (10) is provided with a center hole; the rotary disk (1) is arranged in the center hole of the platform (10), and a locking groove used for locking the rotary disk (1) is formed in the edge of the center hole; the first end of the locking groove is an inner side inclined plane, the second end of the locking groove is an opening, and the opening is connected to the outer wall of the rotary disk (1); the tapered wedges (4) are arranged in the locking groove; the locking hydraulic drive unit is connected with the tapered wedges (4); the rotating angle oil cylinder (9) is connected to a support (12) and is connected with the rotary disk (1). The rotating angle adjusting device is simple and compact in structure, the adjusting scope of an inclined angle of a mandrel bar loosening roller is large, detection accuracy is high, the inclined angle of the mandrel bar loosening roller is easy to detect, and the mandrel bar loosening roller can be locked rapidly and automatically.

The invention discloses a three-jaw chuck with wedge blocks and belongs to the field of lathe fixtures. The three-jaw chuck comprises a chuck body and three clamping jaws with the same structures. A workpiece compressing mechanism is arranged on the chuck body and comprises a frame-shaped sliding seat, a small shaft and an eccentric hand wheel rotating around the small shaft. The frame-shaped sliding seat is provided with an upper opening plate and a lower sliding strip parallel to and connected with the upper opening plate to be a whole. The small shaft is fixed to the upper opening plate of the frame-shaped sliding seat. Each clamping jaw is constituted of a clamping jaw connecting part, a clamping jaw adjusting seat and the wedge block. An adjusting hole is formed in each clamping jaw connecting part. The inner wall of one side of each adjusting hole is in a toothed shape. An adjusting block is arranged on each clamping jaw adjusting seat and in a wedge shape. One side of each adjusting block is in a toothed shape matched with the corresponding adjusting hole. According to the three-jaw chuck of the structure, using is convenient, the loose and sliding phenomena of workpiece clamping are avoided, the machining precision of a workpiece is guaranteed, the qualification rate of lathe machining is increased, and the lathe machining range is increased.