Abstract: A data processing machine in which the cache operating cycle is divided into two subcycles dedicated to mutually exclusive operations. The first subcycle is dedicated to receiving a central processor memory read request, with its address. The second subcycle is dedicated to every other kind of cache operation, in particular either (a) receiving an address from a peripheral processor for checking the cache contents after a peripheral processor write to main memory, or (b) writing anything to the cache, including an invalid bit after a cache check match condition, or data after either a cache miss or a central processor write to main memory. The central processor can continue uninteruptedly to read the cache on successive central processor microinstruction cycles, regardless of the fact that the cache contents are being "simultaneously" checked, invalidated or updated after central processor writes.

Abstract: In a fractional distillation process in which the designation of the primary product stream changes, the desired composition of the primary product stream and a secondary product stream are maintained without losing automatic control of the process for an extended period of time while the controllers controlling the process are retuned for the new operating conditions. Two sets of tuning constants are available to each controller and these tuning constants are automatically switched as required by the designation of the primary product stream.

Abstract: A cooking computer for use with a deep fat fryer having a temperature sensing probe as disclosed herein. The temperature sensing probe feeds a signal to a microprocessor. The microprocessor provides internal cook cycle timers which are alterable by signals from the temperature probe to correspond to changes in the rate of cooking of a commestible. Up to 12 recipes, each of which include a cooking time and a temperature compensation, can be stored in an EAROM. Cooking times and time compensation factors stored in recipes are user alterable through a keyboard.

Abstract: A device is proposed for generating control signals with a primary and an auxiliary control unit, having an error indication circuit layout and a subsequently disposed switchover device from the primary to the auxiliary control unit. The auxiliary control unit operates in parallel with the primary control unit and emits monitoring signals spaced apart in time from those of the primary control unit, which do not yet influence the consumer. If the device is put to use as an injection signal generator in internal combustion engines, then it is recommended that the auxiliary control unit emit its output signal either one cycle later, or 180.degree. of crankshaft angle later, than does the primary control unit. The occurrence of the individual signals can be detected and evaluated. Upon the appearance of an error, the former auxiliary control circuit can then be switched over to become the primry control circuit; in that event, then a reversal must then be effected in the times when the individual pulses occur.

Abstract: In the present invention, the control system comprises a number presetter in the form of a switch board including a certain number of, say five, pushbutton switches. By depressing them sequentially and selectively in a desired order, an arbitrarily selected number code signal can be delivered. This number code signal may have five or seven digits, as an example. Further, there is a first memory which has a predetermined memory content representing a permanent code signal specifically selected at a vehicle manufacturing stage which is unique to the automotive vehicle under consideration. As an example, this may be "5 - 1 - 4 - 3 - 2 - 1- 5". Further, there is a first comparator adapted for comparison of the permanent memory content in the first memory, with an arbitrary number code signal generated at and delivered from the switch board. If there is coincidence between the both signals, the switch board's outlet signal is conveyed to a second memory.

Abstract: A microcomputer based industrial machine control arrangement which includes several operator variable controls. The control arrangement is responsive to settings of the operator variable controls to establish parameters, such as time, in the operation of the machine. The control arrangement also receives a number of machine condition indications, such as through limit switches or the like, and produces various switching commands for elements of the machine during its operation. The particular control arrangement illustrated is described in conjunction with a skin packaging machine for the vacuum application of a film over goods to be packaged.

Abstract: A system for numerically controlling a machine tool comprising a plurality of machine tools, a plurality of numerical control circuits and a computer as an entirely automatic operation commander device, for carrying out the control of the entire processes of said plurality of machine tools with a central control station.

Abstract: An auxiliary channel coupled to a selected loop in a plurality of process control loops included in a direct digital control system, the channel serving to expand the frequency response of the selected loop. The system is provided with a digital computer acting as an electronic controller common to all loops, each loop including a transducer sensing a particular process variable to produce a corresponding analog input signal which is digitized and compared in the computer with a set point signal to yield, after conversion, an analog output signal for operating a final control element in the loop to correct for process variations. The analog input signals from the respective loops are sequentially fed into the computer through a multiplexer at a relatively slow sampling rate whereby the loops are normally responsive only to the low-frequency component in the sampled process variables representing slow changes.

Abstract: A control system for an internal combustion engine wherein the control signal to generate fuel and/or ignition commands is a function of the change of velocity of a movable member, such as a crankshaft flywheel, at a position coupled with the desired velocity of the movable member at that position. The control signal may comprise at least two components wherein the first component represents the difference in magnitude of the peak velocity of the movable member at the two positions and the second signal represents the difference in the two position of the member at which the peak velocities occur.

Abstract: Numerical control installation making it possible to monitor N machine tools each comprising n motors to be monitored in accordance with a desired independent program. The single monitor device (C) comprises a data input station (1), a minicomputer (2), an interface equipment (8) composed of N interface units (8A to 8N) connected by a bus (7) to the minicomputer. Each unit (8A to 8N) is assigned to a machine tool (9A to 9N) and comprises an interface circuit (10) of 2n bits having n sections (10a to 10n) for monitoring each of the n motors (12a to 12n) of a machine. Each machine (10a to 10n) is extended by a monitor integrated circuit (11a to 11n) assigned to each motor for all the comparison operations.

Abstract: A programmable, numerically path controlled processing device of the type which includes a controller, a display unit coupled to the controller, and a keyboard input unit, also coupled to the controller, is programmed selectively to display two alternate sets of dialog texts to structure the programming of the control unit. One set of dialog texts is relatively lengthy and complex and is suitable for general purpose path programming. The second set of dialog texts, on the other hand, is relatively simple and short and contains only dialog texts suitable for programming the processing device in the axially parallel, interval programming mode. The interval programming mode is simpler and more limited than the general purpose path programming mode, and therefore, by calling up the second set rather than the first set of dialog texts, an operator can program the processing device in the interval programming mode in a shorter period of time and in a more direct manner.

Abstract: The optimum knock frequency of an electrofilter installation consisting of several filters is determined. Each filter includes a microcomputer controller and a knocking device. The knock frequency is controlled by a superimposed master computer and the optimum knock frequency for a given knock frequency, varying the frequency by the master computer, again measuring the long-term average of the dust loading, and continuing to change the frequency and measure the dust loading until the dust loading value reaches a minimum.

Abstract: In a multiple digital controller system which comprises a main or first digital controller and at least one stand-by or second digital controller and in which the main digital controller normally applies the control signal to an object to be controlled, and the stand-by digital controller applies the control signal to the controlled object when the main digital controller is disabled, an improvement is made so that an undesirable level variation may not substantially occur in the control signal applied to the controlled object during the transient state of switch-over from the main digital controller to the stand-by digital controller. In the improved multiple digital controller system according to the present invention, the integral calculation to be carried out in the stand-by digital controller in a period n (n=2, 3, . . .

Abstract: A system for converting design information into three-dimensional shapes includes a design information storing and processing apparatus, a controller for converting digital into electrical signals, and a cutter for sculpturing a workpiece into a three-dimensional form. The system enables a designer to sketch a proposed design on the storing and processing apparatus and immediately view the design on a three-dimensional model.

Abstract: In a numerically-controlled machine tool having a tool magazine accommodating tools in the pots, display means capable of rewriting tool numbers in correspondence to the pots is provided, and the positions where the tool numbers are stored are successively shifted in a memory in response to instruction signals applied from the machine tool side in response to the selection or exchange of the tools, so that the display of the tool numbers of the tools in the magazine is changed in synchronization with the tool displacement.

Abstract: A matrix operation device performs matrix multiplication of an input electrical signal by utilizing a plurality of charge-coupled devices having split electrodes. The multiplication is carried out by the split electrodes of the charge-coupled devices. A signal to be transformed is sampled by a delay circuit in the input of the operation device. The sampled signal is supplied to the operation device in the form of a time series or sequence consisting of the sample signals. Each sample is multiplied by a corresponding coefficient. The split electrodes of the charge-coupled devices have weighting coefficients corresponding to coefficients in the matrix. The samples multiplied by the coefficients are added in the output of the operation device and provided as an output signal, corresponding to the development of the matrix multiplication.

Abstract: A sewing machine-pattern data processor including a coordinate input device for outputting coordinate positions on a plane by means of a manually operable stylus; an arithmetic and logic unit which receives the sewing machine pattern data input from the coordinate input device to convert the data to command data for a predetermined sewing machine unit control operation; a memory for memorizing the command data converted by the arithmetic and logic unit; and a write-in device which reads out the data of the memory to write-in a non-volatile recording medium.

Abstract: A system and method are disclosed for automatically machining a work piece to precise selectively determined dimensions under computer numerical control in which the cutting tool is set automatically and automatic on-machine inspection is performed of the machined work piece surfaces. Using vibration sensing to detect contact between the cutting edge of the cutting tool and position reference surfaces, the cutting edge is calibrated against these surfaces under closed loop control. The deviation between the programmed and the actual positions of the cutting edge at each reference surface is determined and an initial compensating tool position offset is automatically provided in each axis and is entered into numerical control means. After machining has been initiated, probing of the work piece occurs at least once before the final cut is taken.

Abstract: In methods of automatically controlling the strip thickness in a rolling mill for producing a rolled product having a desired thickness and devices therefore, either an automatic gauge control (AGC) mode for controlling a deviation of the output thickness of a material being rolled from the predetermined desired uniform gauge thickness to be diminished to zero or an automatic reduction rate control(ARC) mode for controlling the rate of reduction of the material being rolled to a predetermined value is properly selected in accordance with the rolling condition, i.e., the degree of the actually measured output thickness deviation of the material or the progress of the rolling passes.

Abstract: A modular instrumentation system for monitoring and control of biochemical processes, and in particular of fermentation processes is provided. The system includes a plurality of function monitoring and control modules each including a microprocessor and associated memory devices, manual input devices and an interface for the receipt of sensor signals and the transmission of control signals. The modules for a plurality of functions have substantially common design and are adapted for relatively quick conversion to another function. The system may include an instrument console adapted to receive a plurality of the function monitoring and control modules as well as incorporating provision for sensor inputs, power inputs, one or more recorders, one or more pumps and/or an interface for an external computer.