Abstract: In a packet transmission method of forming m error correction code packets from n (n>m) data packets including headers, and transmitting the error correction code packets, an n-bit data code portion is formed by reading out pieces of bit information, of the data packets excluding headers, which are located at the same bit position, and sequentially arranging the pieces of bit information. An m-bit error correction code portion is formed by coding information of the data code portion and forming an error correction frame constituted by the data code portion and the error correction code portion. Each bit information of the error correction code portion is assigned as bit information of a corresponding error correction code packet at the same bit position as the bit position of each data packet, from which the bit information is read out.

Abstract: A method for modeling a synthetic crystal structure formed of a first crystal structure and a second crystal structure by representing the first crystal structure using a first coordinate system and the second crystal structure using a second coordinate system, specifying a first atom, a first lattice and a first crystal face of the first crystal structure, the first crystal face including the first atom and the first lattice; specifying a second atom, a second lattice and a second crystal face of the second crystal structure the second crystal face including the second atom and the second lattice; transforming the second crystal structure system represented by the second coordinate system into a second crystal structure represented by the first coordinate system so that an assembling condition is satisfied, the assembling condition being defined as a condition in which the second atom, the second lattice and the crystal face of the second crystal structure are respectively superposed on the first atom, the f

Abstract: A semiconductor memory device includes a memory cell array for storing information and parity bits, a register circuit for temporarily holding the information and parity bits in respective bit register circuits, and an XOR circuit for detecting an error of logical values of the information and parity bits in accordance with a predetermined verifying matrix. The XOR circuit includes a plurality of XORs each having an input line pair for receiving information in a first direction, an input line pair for receiving information in a second direction perpendicular to the first direction, and an output line pair outputting XOR logical values in the second direction.

Abstract: A control system comprising two controller modules. The controller module includes an independent controller, a cooperative controller, an adjuster and a synthesizer. The independent controller inputs measured values xi of a system variable from a target system controlled by the current module. The cooperative controller inputs measured values of a control variable xj from a target system controlled by another module. The adjuster adjusts the gain of the cooperative controller 4 based on the control variable xi. The synthesizer corrects the output of the independent controller 3 by using that of the cooperative controller and effects on output reflecting the composition. The target system being controlled by the current module is controlled according to the output of the synthesizer of the current module. Any interference that may occur between the changing system variables of the target system can be suppressed in a short time.

Abstract: A process and a device for the correction of the regulation onset point and of the intensity of regulation relate to a regulated drawing frame of the textile industry, i.e. a drawing frame in which drafting can be regulated or can be changed in a controlled manner. A selected transient signal of the fiber sliver thickness starts the process for a limited time span so that, independently of the existing regulation, the response signal is detected at the drawing frame output and its difference with the input signal is evaluated in order to correct the regulation onset point and/or the intensity of regulation.

Abstract: A method of input signal resolution in a process control system where each of the actively redundant process control computers performs a common arbitration process on corresponding input signals. Blocks of corresponding input signals are mutually exchanged by the actively redundant process control computers, and an initial check is made to determine if these input signals are valid. For input signals representing valid analog values, a determination is made as to whether a predefined tolerance has been exceeded between corresponding input signals in the present process control cycle. When the predefined tolerance has been exceeded, then a check will be made to determine the predefined tolerance was also exceeded in the last process control cycle. If the predefined tolerance was not exceeded in the last process control cycle, then the analog input value selected during the last process control cycle will be employed in the present process control cycle.

Abstract: A caliper profile control system for a paper machine provides reduced start up times after sheet breaks to bring the caliper profile across the sheet to within the desired limits. The method comprises the steps of scanning at predetermined intervals across the width of the paper sheet to monitor thickness error of the sheet from predetermined limits and change in the thickness error between the intervals, in each of a plurality of zones across the sheet. A control change signal is determined for each of the zones based on the error and the change in error using an exponential function of the magnitude of the error to maximize the change in the error and reduce integral action when the error is large. The control signal is used to reduce the error in each zone and the integral action is increased as the error decreases until the predetermined limits are met.

Abstract: A system and method for monitoring vibrations of a cutting tool uses a neural network for classifying signal features as break or non-break or, in another embodiment, as non-break or abnormal. A vibration signal is produced by an accelerometer, positioned to sense vibrations at the tool-workpiece interface. The signal is pre-processed to extract low frequency machining noise and detect the energy in a higher frequency band. The signal is then sampled and segments of the digitized signals are processed by digital logic into feature vectors for input to a trained neural net having two output nodes for classification. The use of a neural net provides performance improvement and economies over previously known heuristic methods of signal analysis.

Abstract: In a design aiding method, a design aiding apparatus having the method, or a design aiding system possessing a plurality of such design aiding apparatuses for use in a field of computer software to facilitate a design process, there is determined, for a product having many variations of attributes and values thereof, an appropriate design procedure according to a state of design in a process of determining the attribute values of the product satisfying a request of a client. At occurrence of, for example, conflict during the design, the design procedure is guided for the user to obtain a design plan conforming to the request.

Abstract: In order to derive optimum design specifications based on total evaluation performed on a product as a whole instead of individual design items during a process of determining design specifications involving a plurality of design items, candidates for the product specifications are selected by controlling design parameters for each of the design items in an integrated manner, computing values of a plurality of evaluation items evaluating candidates for the design specifications and performing total evaluation on all the evaluation items based on their computed values through collaboration among a plurality of design sections altogether auto-correcting all relevant design parameters quickly and relaxing as well as reassessing design constraints for a design parameter.

Abstract: Semiconductor chip manufacturing methods and devices are disclosed which store dicing data corresponding to the kinds of wafers, when data indicating the wafer kinds are input, read out the dicing data corresponding to the data input, and cut a wafer set at a given position to a desired shape in accordance with the dicing data to thereby manufacture a semiconductor chip. The manufacturing methods and devices include read means for inputting the data indicating the wafer kinds. According to the manufacturing method and device, a symbol indicating the kind of the wafer is recorded as an identification symbol readable by the read means and on a member moving together with the wafer in a chip manufacturing process that is not part of the product being manufactured, and preferably, is also not part of a recyclable carrier for the wafer to be diced. When the data indicating the kind of the wafer is input, the identification symbol recorded in the above-mentioned member is read out by the read means.

Abstract: A method and device for detection and correction of errors in ATM cell headers, wherein it series to parallel converts (2) the serial data stream (1), thereby obtaining a parallel data format of n bits, the clock rate of which is n times lower than the original. From the parallel input data of the ATM header, a syndrome word (3) is generated according to a determined function that indicates that no error has been detected, that more than one error has been detected, or which bit has to be corrected when only one error has been detected. The ATM cell headers are delayed (4) until the syndrome word has been completed, the error correction process (5) then being carried out, when required, in accordance with the syndrome word generated. In addition, an individual indication (7) for external use is generated of the result of the detection and possible correction process made. The device implements the method described.

Abstract: An error detecting and correcting apparatus includes a unit for receiving an encoded word including a plurality of b-bit bytes (b is an integer not less than two) and generating syndrome from the encoded word according to a first parity check matrix H.sub.1, and a unit for correcting errors in the received encoded word based on the syndrome.

Abstract: A moveable label printer-applicator/conveyor loader assembly for loading articles onto a conveyor comprises a frame mounted for movement along a conveyor path and a controller. The controller receives data from a host computer which specifies an article to be selected and actuates a drive motor to move the assembly to the selected bin location. The quantity of articles to be picked is displayed to an operator via a CRT display. Sensors detect the profile of articles loaded onto the conveyor and transmit this data to the controller. After the controller verifies that the correct article has been selected, a labeler prints and applies a label to each article.

Abstract: The present invention provides a signal loss recovery device (300; 400; 900) and method (500; 600; 1000; 1100; 1200) of digitally encoded bitstreams produced by predictive encoders, for realtime and/or interactive communications. The signal loss recovery device (300; 400; 900) of this invention recovers the lost or damaged information by requesting the transmitter for retransmitting the lost information. Compared to the previously known retransmission technique, the device in this invention does not introduce any extra buffer delay. The elimination of this buffer delay is realized by continuously processing the received data while waiting for the arrival of the retransmission. The information contained in the retransmitted data is reinserted into the error corrupted signal to restore the output signal to its original form without signal loss.

Abstract: A system for controlling a process system with a process system gain and dead time of which its transfer function includes a gain term element corresponding to the process system gain and a dead time term element corresponding to the dead time, subject to an external disturbance, by adjusting a control variable output by the process system to a target value according to a manipulated variable output by a controller performing at least proportional and integral control operations based on a deviation between the control variable and the target value.

Abstract: The system for automated design and construction of artificial limb sockets for amputees consists of an array of ultrasound transducers especially constructed to insonify the residual limb of an amputee. The time-of-flight information recovered from this procedure is then stored in a computer, where it can be processed to provide dimensional information with regard to the relative location of the limb, skin, and bone surfaces in space. This three dimensional information is then used to produce an image of the limb with a computer aided design system for customized prosthetic design and manufacture.

Abstract: In a continuous sheetmaking process, a synthetic measurement is constructed having a higher signal-to-noise ratio than that of each original measurement in situations where more than one (redundant) measurements are available. The input-output dynamic characteristics of each measurement are assumed to be identical except for a gain factor. Using the synthetic measurement, system parameters can be identified in less time with fewer input disturbances. The invention is especially advantageous for application to processes that are expensive to disturb and in which the noise amplitude is high compared to the permissible amplitude of the put disturbance. The signal-to-noise enhanced time-series response measurement may be produced by selecting a time series response measurement that exhibits a greatest magnitude. Alternatively, it may be produced by averaging in the cross-direction a plurality of time series response measurements.

Abstract: In a system including a machine tool which operates on conveyed workpieces, a motion controller for the NC-controlled machine tool is improved by performing compensation for conveyor movement outside of the operation processor, so that compensation may be performed without modification of a machining program which does not take conveyor movement into consideration.

Abstract: A multi-operation control system is made up of a plurality of slave computers at least some of which are axis computers each monitoring its respective operation and receiving instructions broken down into plurality of discreet actions. The current state S.sub.c,N of each slave is determined and is compared with preset absolute maximum status for that slave S.sub.ab,N(max) and the maximum acceptable change in status .delta.S.sub.a,N(max) of each respective slave is determined and the corresponding appropriate state signal based on the maximum acceptable change to that slave is sent to all of the slaves in the system. Each axis slave then reads all state signals and determines the highest state signal acceptable to all slaves and each axis slave then carries out its correspond increment(s) of change in status .delta. S.sub.N based on the highest S.sub.a,N(max) acceptable to all slaves.