Abstract: A syndrome polynomial S(x) is generated based on a received word, an erasure locator polynomial .lambda.(x) is generated based on an erasure location, an error evaluator polynomial .omega.(x) is generated based on a polynomial M(x) which is a product S(x).multidot..lambda.(x) of the syndrome polynomial S(x) and the erasure locator polynomial .lambda.(x), a polynomial .tau.(x) which is a product .lambda.(x).multidot..sigma.(x) of the erasure locator polynomial .lambda.(x) and the error locator polynomial .sigma.(x) and a differentiation .tau.(x) of the polynomial .tau.(x) based on the polynomial M(x) and the erasure locator polynomial .lambda.(x), a dimension .alpha..sup.i is set to the error evaluator polynomial .omega.(x), the polynomial .tau.(x) and the differentiation .tau.'(x), and when .tau.(.alpha..sup.i)=0, the i-th symbol of the received word is corrected to .omega.(.alpha..sup.i)/.tau.'(.alpha..sup.i).

Abstract: A computer controlled separator device is disclosed. The computer control system monitors the operation of the separator device and makes any adjustments necessary to maintain optimal operation. An operator may input values representing desired operating parameters and/or desired product characteristics of the separator device. Alternatively, these values may be programmed into the computer control system in accordance with optimal product or system standards. The computer control system monitors the operation of the separator device and makes any adjustments necessary to maintain operation in accordance with the selected or programmed values. Specifically, the computer control system may monitor incoming and outgoing product characteristics, i.e. particle weight, particle density, or particle size; and/or operating parameters, i.e. air flow, vibration speed, side tlit, end raise, feed rate, divider knife position and cutout gate position.

Abstract: Information to set up various audit procedures is input through an operator terminal (10) to an audit revision processor (120). The audit revision processor creates various audit points by creating an audit point identification and the various audit parameters including identification of an item on which the audit is performed, the nature of the defects sought by the audit, any test fixtures used in the audit, standards, dimensions, or tolerances against which the item is tested, and the like. Once a series of audit points are created, the operator uses a video monitor (12) and a mouse (14) in a point and shoot manner to identify a selected audit from an audit look-up table (40) which retrieves a corresponding audit point identification. The audit point identification is supplied to memories (42, 50, 60) which provide corresponding information for display on the monitor (12) and which provides an initial address information to a sampling matrix (80).

Abstract: In a communications system, a convolutional encoder encodes data from a data source and a modified Viterbi decoder decodes the encoded data after the encoded dated passes through an error producing channel. The decoder calculates selected metric increments, known as kernel metric increments, for half the states, and selects survivor metrics for all states.

Abstract: Extended error protected communication system.An extended consumer communication system uses a signal that is error protected by a block code. The generator polynomial isG.sub.n (x)=g.sub.o (x) . . . g.sub.n (x)which is factorizable, and each of the factors implement a linear and systematic code. Generally, each of the factors adds redundancy and raises the level of error protection. In this way, redundancy that is associated to a later term of the sequence occupies code positions that are protected by at least one earlier term in the sequence and may in consequence be used for positioning data that is protected by such earlier term, upon surrender of such higher protection level.

Abstract: Power demand is monitored and temperature control effected in response. If monitored power demand is below a predetermined power demand limit, a selected desired temperature setpoint is used as the temperature to be attained. If monitored power demand is above the power demand limit, a modified temperature setpoint is used. The modified temperature setpoint preferably is determined to maintain a still comfortable temperature while also reducing power demand.

Abstract: A method and an apparatus for calculating and checking the Frame Check Sequence (FCS) of a message comprising a sequence of data bytes. A Cyclic Redundancy Code (CRC) is used to generate the FCS at one end and check the message at the other end. For each new byte of the sequence of data bytes, the current FCS, which is a vector of the Galois Field is multiplied by .alpha..sup.8, another vector of the Galois Field.

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: A novel technique for improving the accuracy of seed values for iterative convergent computations such as square-root taking and division by providing optional dynamic range expansion as a part of the seed selection process is described. The technique, by improving seed accuracy, reduces the number of iterations required for convergence. This is accomplished with less hardware than would be required to accomplish the same result with a large ROM.

Abstract: This device is intended for a vehicle in which the wheels (1) are each equipped with a damper (2) and with a suspension spring (3); it comprises, for each wheel, an actuator (4) interacting with the spring, and provided with a position sensor (5), an electro-hydraulic interface (6) for controlling the actuator, this interface being connected to the actuator, to a hydraulic unit (8) of the vehicle and to a source of electrical energy, and a computer (7) for trim management, connected to the interfaces, and programed to take account of each parameter of the driving of the vehicle, especially its speed and the angle of its steering wheel; on the basis of these parameters, the computer controls the interfaces (6) and the actuators within the context of loops for slaving the latter to reference output travels, corresponding to maintaining the vehicle in predetermined trim stored in the memory of the computer.

Abstract: When an ingot is sliced into wafers, they are given serial numbers for identification. This makes possible to identify which any wafer being processed is of those sliced from the ingot no matter where the wafer is in a manufacturing process. Each wafer is traced so as to determine the path along which the wafer was transferred during the manufacturing process, and results are stored as wafer information.

Abstract: A convolution of input data S.sub.0 and a Gabor function G.sub..alpha.,.omega. is implemented by a processing unit (20) to obtain a wavelet coefficient T.sub.g (2.sup.0,b) of a 0th stage. The input data S.sub.0 is applied to a low-pass filter (30) and is subjected to Gaussian-type filtering so as to be converted into input data S.sub.1 for a 1st stage. The frequency of the high-frequency components of this input data is halved by this filtering. A convolution of this input data S.sub.1 and a Gabor function G.sub..alpha. /3,2.omega./3 is implemented by a processing unit (21) to obtain a wavelet coefficient T.sub.g (2.sup.1,b) of the 1st stage. In the convolution of the 1st stage, the sampling interval is twice that of the 0th stage. Thenceforth, and in similar fashion, the sampling interval in processing operations of subsequent stages is doubled from one stage to the next. As a result, there is no increase in the amount of processing in each stage and a coefficient T.sub.g (2.sup.

Abstract: Apparatus for transmitting and receiving information blocks, particularly video information, is arranged so that on receiving a corrupted information block it stores a first receiver buffer address at which the data block should be stored if subsequently successfully repeated in a later information block. The apparatus keeps track of the time taken to receive a requested repeat information block and on receiving the later information block at the predicted time, and on determining that it is uncorrupted, stores the data in the receiver buffer at the stored buffer address. Such apparatus can allocate received, repeated and non-repeated data blocks to their correct relative positions within the receiver buffer without the need for numbering of the data blocks on transmission giving a consequential reduction in the size of the data blocks being transmitted.

Abstract: An input register holds, as an input operand to be square rooted, a floating-point number with an exponential radix is 2. An approximation of the reciprocal of a square root is retrieved from a table information store unit by an address composed of a least significant bit of an exponent and upper bits of a mantissa provided from the input register. The mantissa, with a leading bit appended, is normalized by a normalization circuit in units of two bits. An output of a remainder hold circuit in which a 0th remainder serves as a normalized operand is multiplied by a retrieved approximation to find a partial square root. Partial square roots found in iterative calculations are merged by a digit place alignment circuit and an adder. By making use of an inverter, a multiplicand generator, and an (R+S.times.

Abstract: Operation apparatus for deriving an error position polynomial .GAMMA.(x) and a Forney syndrome polynomial T(x) of a Galois field capable of reducing the required number of Galois field multipliers to one, irrespective of the maximum error correction capacity in a Galois field operation, thereby reducing the chip area and achieving a correct operation.

Abstract: A system for manufacturing parts for a functional device such as a cyclone separator accepts user input in the form of specified performance parameters, determines an appropriate design for the functional device based on the performance parameters, and drives a computer-aided manufacturing (CAM) machine for producing the parts. In the case of a cyclone separator, the performance parameters include air flow, particulate matter type, and separation efficiency. The appropriate design includes configurations and dimensions of parts for the cyclone, and the CAM machine cuts out the parts from sheet metal stock.

Abstract: A hierarchical control PLD system controls deposition processes by feedback means, for industrial production of tribological thin films. PLD process system identification, intelligent feedback control architecture, and implementation for ultraviolet pulsed laser deposition processes are provided. This system has three levels of feedback control. The first level of feedback control improves the precision and tracking of sub process variables by linear observer based compensator control. The Mo I plume species density per laser pulse and bulk substrate thickness by the quartz crystal micro balance provide real time sub process data to the observer. The observer based compensator then directly calculates laser energy density per pulse and pulse repetition rate based on the current values predicted by the linear model. The second level consists of a dynamical system design algorithm and nonlinear process map.

Abstract: Apparatus for encoding and decoding the Alternant code family including three parallel special purpose Galois Field processors, and a timing and control unit. The special purpose processors jointly process a time domain algorithm relatively independently of the timing and control unit, and are adapted so that each step of the time domain algorithm is handled by one or more of the processors.

Abstract: A fuel dispenser having a controllable audio/video program display includes a fuel pump and delivery path, a program media display, and a prerecorded program and a multi-media controller to direct program signals to the program media display. Apparatus is included for recovering multi-media control signals embedded in the program signals in the prerecorded program including a detector for detecting predetermined portions of the program signals having embedded control signals and rerouting means for rerouting the control signals in the program signals to an output. The multi-media controller is coupled to the rerouting means to act on the program signals as directed to the media display.

Abstract: A magnetic disc apparatus wherein off-track quantities are stored with regard to reference servo tracks formed circularly in divided data areas on a magnetic disc and, at the time of displacing the magnetic head, the head is shifted an extent of the stored off-track quantity after being once positioned by a head position detector. Gradients of the off-track quantities corresponding to tracks at individual temperatures in the apparatus are previously stored and, after the actual temperature is detected by means of a temperature sensor, the off-track quantity relative to the reference servo track is corrected in accordance with the gradient of the off-track quantity to the relevant track at the detected temperature, whereby just tracking is achieved. The magnetic head can be positioned exactly with respect to a desired data track while the head displacement time is shortened.