32results about How to "Avoid unnecessary operations" patented technology

A data terminal which is coupled to an local area network and a public switched telephone network includes a sub-address generator that generates a sub-address based on an electronic mail address and a predetermined functional operation method. A data table generator generates an address conversion table correlating a plurality of sub-addresses to corresponding input electronic mail addresses. Each of the plurality of sub-addresses being uniquely coupled with a corresponding electronic mail address that is uniquely assigned to a single client terminal. The data terminal also includes memory to store the address conversion table and a terminal controller. The terminal controller checks an incoming call from a facsimile machine containing facsimile image information and a sub-address representing a destination client terminal, and upon receiving such incoming facsimile image information and sub-address, the controller determines an electronic mail address corresponding to the sub-address using the address conversion table. The controller then relays the facsimile image information to the destination client terminal at the determined appropriate electronic mail address.

A method and a protection IED for supervising a secondary circuit of an instrument transformer in a power system are disclosed. The instrument transformer is connected to a power system component. The method includes: detecting, by a protection IED which is connected to the secondary circuit of the instrument transformer and protects the power system component, disturbances in a signal from the instrument transformer; and determining whether a failure occurs in the secondary circuit of the instrument transformer, according to both a disturbance detection result from the protection IED and another disturbance detection result from at least one of other protection IEDs. The other protection IEDs include protection IEDs which are connected to other secondary circuits of the instrument transformer or to secondary circuits of another instrument transformer connected to the power system component, and protection IEDs which are connected to other instrument transformers connected to other power system components connected to the same busbar as the power system component is connected to. The secondary circuit supervision solutions provide more reliable and sensitive performance and need very small amount of information to be collected.

A fuel injection system for an internal combustion engine is provided which calculates the quantity of fuel required to bring the pressure in a fuel accumulator into agreement with a target pressure and then control an operation of a high-pressure pump based on the required quantity. Even in the absence of a change in pressure in the accumulator, the system controls the high-pressure pump based on the required quantity. Specifically, the system calculates a feedback fuel quantity required to compensate for a difference between the required quantity and a quantity of the fuel actually supplied to the accumulator, in other words, leans such a quantity difference to correct the required quantity, thus resulting in an enhanced response of the system to control the high-pressure pump to a change in pressure in the accumulator.

An image forming apparatus whereby recording liquid is jetted onto a recording medium so that an image is formed, the image forming apparatus includes an operations part configured to operate the apparatus in a predetermined special mode different from a normal mode in a case where a machine number stored in advance is a specific character string.

The systematic, and possibly repeated, acquisition of several distinct quantities for exploitation by a user system by utilizing a multiplexer with staged architecture without all inputs hard-wired. Each multiplexer stage is addressed by an elementary counter chained with elementary counters for addressing lower stages. The multiplexer inputs are scanned by regularly incrementing the chain of counters. If no precaution is taken, all the multiplexer inputs are scanned without considering their possible absences. To remedy this drawback a first elementary counter addresses the first stage of adjustable counting capacity switches, the elementary counters can address intermediate stages of the switches with controllable shunting circuits, and a global counter is reconfigured, at the end of each counting cycle of the first elementary counter, by commands adjusting the first elementary counter capacity, and activating or inhibiting the shunting circuits. The stored commands are a string of instructions executed one by one.

A needle valve that adjusts the flow of liquid fluid and an open/close valve that makes it possible to fully close a flow path of the liquid fluid are accommodated inside a casing of a flow adjusting valve. The needle valve is provided with a reciprocating movement section that adjusts the flow of the liquid fluid by moving a needle valve piece toward and away from the valve seat. The open/close valve is provided with an opening/closing section that utilizes a basal outer surface of the needle valve piece facing the valve seat as a fully-closing valve piece and that reciprocatingly moves the fully-closing valve piece, independently of the reciprocating movement section, between a closed position, where the fully-closing valve piece is in close contact with the valve seat, and an open position, where the fully-closing valve piece is moved away from the valve seat.

A data input buffer control signal generating device is capable of preventing unnecessary operation and current consumption of blocks and thus stabilizing an internal operation of DRAM by generating a control signal which controls an enabling timing of a data input buffer not to be conflicted with an output data. The data input buffer control signal generating device includes a write-related control unit configured to generate a data input buffer reference signal generated on the basis of a write latency by a write command, a read-related control unit configured to replicate a delay through a data output path, delay an end command for a data output termination and generate a delayed end command, wherein the end command is generated by a read command, and an output unit configured to output a data input buffer control signal by combining the data input buffer reference signal and the output of the delayed end command.

The invention belongs to the field of servo control, and particularly relates to a secondary bus program online programming method based on a 1553B bus and a CAN bus. The method specifically comprisesthe following steps: step 1, formulating a program programming communication protocol; 2, designing a main control software program online programming module; 3, designing a slave control software program online programming module; and 4, programming an upper computer communication module on line by designing a program. According to the method, the software programming process can be simplified,unnecessary operation on hardware in the software programming process is avoided, and meanwhile software upgrading can be achieved only through the 1553B bus in the outfield. The method is already applied to models, and the development of the digital servo controller is promoted.

Disclosed are a refrigerator and a control method thereof, wherein operation of an icemaker can be controlled according to time or function. A sleep mode to control operation of an icemaker according to time is set to prevent generation of noise due to an ice-separating operation implemented at night. In the setting of the sleep mode, a control range of the sleep mode is selected according to a desired operating function (ice-making function or ice-separating function) of the icemaker and also, a period of the sleep mode in units of days/weeks/months (or an operating term) is selected.

An electronic device includes a serial interface which exchanges data with a memory register and a first data buffer. In accordance with a setting which is written in the memory register, data in the first data buffer is exchanged with a memory through a memory controller. The serial interface exchanges data with an add-on register and a second data buffer. In accordance with a setting which is written in the add-on register, data in the second data buffer is exchanged with an add-on unit through an add-on controller. The add-on unit is connected to an external LAN or the like. Part of the setting data written in the memory register and the add-on register is determined from the add-on unit by a system control circuit. In accordance with the determination, a function to be executed by the electronic device is changed.

The invention discloses a combined medical guide wire fixing clamp which comprises a bottom plate, the bottom plate is provided with a clamping device, the clamping device comprises two clamping plates arranged side by side, a gap for retaining a guide wire is formed between the two clamping plates, and the bottoms of the two clamping plates are rotatably connected; the button switch is movably connected with the clamping device and used for controlling opening and closing of the clamping device; the magnetic connecting devices are arranged on the side edges of the bottom plates and used for rapidly and magnetically connecting the multiple bottom plates; and the bonding layer is arranged on the bottom surface of the bottom plate in a covering manner and is used for adhering the fixing clamp to a table top or a bed sheet.

The invention discloses a method for detecting residual quantity of various veterinary drugs in animal-derived food. The method comprises the following steps: a sample with specific mass is acquired; the sample with specific mass is mixed with a first extracting agent with specific quantity, and a mixed solution is obtained; the mixed solution is subjected to separation treatment, and a separation solution is obtained; the separation solution is subjected to solid phase extraction treatment, and an eluate is collected; the eluate is subjected to nitrogen blowing treatment at a specific temperature, and a volume fixing agent is added for volume fixing; filtering is performed; the residual quantity of the veterinary drugs in a filtrate is detected. With adoption of the method, unnecessary operation of repeated pretreatment needed in the traditional method is avoided, a pretreatment flow is simplified, workload of a related worker is reduced, and efficiency of the worker is increased; the problem of repeated instrument determination for the conventional residue tests of the various veterinary drugs in the animal-derived food is solved, and the detection efficiency of the instrument is increased; the cost is reduced and saved 5 times or more than that of the traditional method; the usage of an organic solvent is reduced, emission is reduced, and benefit for environmental protection is realized.

A switching regulator includes: an error amplification circuit configured to amplify a difference between a voltage based on the output voltage and a first reference voltage to output an error voltage; a PFM comparison circuit configured to compare the error voltage with a second reference voltage to output a comparison result signal at a first level or a second level, an offset being given to the error voltage for a given period in response to a change of the comparison result signal from the second level to the first level; an oscillation circuit configured to output a clock signal of a given frequency according to the first level of the comparison result signal, and to stop outputting the clock signal according to the second level of the comparison result signal; and a PWM conversion circuit configured to turn the switching element on at a prescribed pulse width.