Abstract: A control method and a control system for a hydrostatic drive system including a variable displacement hydraulic pump and a hydraulic actuator connected together to form a closed hydraulic fluid circuit. When the flow rate of the hydraulic pump is increased, the rate of change in the tilt of the hydraulic pump is controlled so that the discharge pressure does not exceed a first set of preset values with respect to the flow rate of the pump, meanwhile when the flow rate of the pump is reduced, the rate of change in the tilt of the hydraulic pump is controlled so that the suction pressure does not exceed a second set of preset values with respect to the flow rate of the pump.

Abstract: A process control apparatus capable of adjusting control constants of a process control operation which controls a controlled process. The process control apparatus includes an identification signal generator for producing a maximum length sequence signal, an adder for adding this maximum length sequence signal and a control signal and supplying it as an operation signal to a process, an operation circuit for identifying the pulse transfer function of a process response from the process signal and the operation signal and processing the transfer function by Laplace-transforming the step response of the pulse transfer function, and a circuit for processing control constants according to the transfer function.

Abstract: A circuit for providing a common setpoint for both automatic and manual operation of a process control system includes a process controller. A parameter of the process can be changed by changing the output of a controller. A variable input voltage to the process controller establishes the setpoint of the parameter. Changes in the variable voltage are made either manually or automatically so that a common setpoint is established for both types of operation.

Abstract: The method for the automatic electronic recognition of a program unit broadcast by radio waves includes the formation of a plurality of reference signal segments from the program unit and the processing of such segments to obtain digitized reference signal segments which are then normalized and stored. When the program unit is broadcast, the broadcast signal is processed to generate successive digitized broadcast signal segments which are correlated with the digitized, normalized reference signal segments to obtain correlation function peaks for each resultant correlation segment. The spacing between the correlation function peaks for each correlation segment is then compared to determine whether such spacing is substantially equal to the reference signal segment length.

Abstract: An information system that enables a higher dimensional physical execution of an object than it is physically measured by a sensory apparatus, using oblique systems of coordinates for processing information in covariant vectorial form and providing output information in contravariant vectorial form.

Abstract: Apparatus for controlling humidity comprises a humidity sensing circuit including a humidity sensing element the electrostatic capacitance of which varies in accordance with the ambient relative humidity, and an air-conditioning system responsive to the sensed humidity. The humidity sensing element is charged and discharged repeatedly in accordance with a pulse train signal, and a period required for the voltage across the sensing element is measured during charging by a comparison between the voltage and a reference voltage. The pulse width or the reference voltage may be changed to select a desired reference humidity. A hysteresis characteristic may be given to render the operation of the circuit stable. When an SCR is controlled by the output signal of the humidity sensing circuit, the frequency of the pulse train signal is selected to be greater than four times the frequency of the voltage applied to the SCR.

Abstract: A method of controlling a digital video processor in a digital fluorography system wherein the electronic components of the processor are variously configured to perform math functions and manipulations on digital image data obtained in connection with carrying out x-ray examination procedures and the images are displayed on a television monitor or recorded. A system controller sends a complete recipe for a procedure to the memory of a microprocessor based CPU that controls the video processor. The latter CPU interprets the instructions and effects configurations and reconfigurations in the data paths of the video processor during television vertical blanking intervals.

Abstract: A numerically controlled machine includes a first computer which stores command data for a path and derives sets of interpolation point data from said command data for a plurality of points along the path. A second computer stores two sets of interpolation point data from said first computer and extrapolates a set of said stored interpolation point data by incrementing velocity with acceleration and position with velocity using a noncircular high order polynomial to produce a sequence of driver command signals.A timing means provides timing signals to the second computer to determine the number and rate of iterations of drive command signals in said sequence as predetermined by the first computer for each set of interpolation point data.The program execution time in the second computer is reduced by a unique method of multiprecision calculation which requires a carry flip flop for each variable calculated and a sign flip flop for eliminated word segments.

Abstract: An interface mechanism (10) between two processors, such as a host processor (70) and a processor (31) in an intelligent controller (30) for mass storage devices (40), and utilizing a set of data structures employing a dedicated communications region (80A) in host memory (80). Interprocessor commands and responses are communicated as packets over an I/O bus (60) of the host (70), to and from the communication region (80A), through a pair of ring-type queues (80D) and (80E). The entry of each ring location (e.g., 132, 134, 136, 138) points to another location in the communications region where a command or response is placed. The filling and emptying of ring entries (132-138) is controlled through the use of an `ownership` byte or bit (278) associated with each entry. The ownership bit (278) is placed in a first state when the message source (70 or 31) has filled the entry and in a second state when the entry has been emptied.

Abstract: The control circuit is provided with a signal transmitter for feeding a temporary disturbance signal to the controller 16, a selector which is selectively connected to the signal transmitter and a function transmitter and a disturbance indicator which switches the selector to the function transmitter in response to a signal from the signal transmitter falling outside a certain preset range of threshold values. The control of the circuit may be constructed in various manners.

Abstract: A computer for calculating the similarity between first and second patterns, each represented by a sequence of feature vectors, comprises a calculating circuit for calculating a weighting factor from feature vectors in the first pattern, a weighting circuit for applying the weighting factor to the feature vectors of the second pattern to calculate an estimated vector for the second pattern, and a similarity calculating circuit for calculating and determining the similarity between the first and the second patterns on the basis of the feature vector of the first pattern and of the estimated vector of the second pattern.

Abstract: Stitching data according to a desired sewing pattern is successively stored as incremental data between adjacent stitches. When all of the stitching data as thus stored is transferred into a storing medium for controlling feeding of cloth in an automatic sewing machine, the incremental data is successively added to compute sewing pattern coordinates. All of the sewing pattern coordinates are used to produce an image reference position of the sewing data on a monitor display screen. The image reference position and the sewing pattern coordinates are computed to produce monitor display pattern coordinates, and a sewing pattern based on the monitor display pattern coordinates is displayed on the monitor display screen to allow confirmation of the sewing data before the latter is transferred into the storing medium.

Abstract: A method of control of NC machine tools of the type wherein all control data necessary for preparing machining data is inputted into a control device by key switches provided on an operating board. The data necessary for machining a workpiece stored in a microcomputer contained in the NC machine is reduced to the lowest minimum, while various data, such as the paths of movement of tools during rough machining, rough finish machining and finish machining, actually needed for machining the workpiece are successively computed on the basis of the data stored in said microcomputer in advance. Thus, data associated with a variety of workpieces can be processed with a minimum of memory capacity, and complicated shapes having concaves and convexes can accurately be machined in a simple operation.

Abstract: The present invention is directed to an analog memory for storing digital information in analog signal form. Typically, digital information is stored in digital signal form, where each digital bit is stored in a separate digital memory cell. In accordance with the present invention, an analog memory such as a charge transfer device (CTD), bubble memory, or magnetostrictive memory is used to store analog signals. Each analog signal is representative of a plurality of digital bits, thereby providing storage for a plurality of digital bits in each analog memory cell. Use of such an analog memory in combination with a digital system facilitates a hybrid memory, where digital information is stored in analog signal form.

Abstract: A supervisory control system for interrogating a large number of remote units. A pseudorandom sequence of bits are generated by central control in cycles and received by the remote units. Each remote unit is provided with a pseudorandom bit sequence generator. Upon coincidence of the pseudorandom bit sequence from the central control and the remote unit and upon detection of the address of remote unit and of the specific point in that remote unit, the remote unit sends back to the central control the status information of the selected point during the next succeeding bit time interval. In this manner the statuses of entire set of remote units are interrogated and reported. In accordance with a further aspect of the present control system, the control system commands the remote units for action and the remote units send back command acknowledge signals.

Abstract: An articulated robot comprises one or more articulation angles that can assume two states on the occasion of the same position or attitude of an object being controlled. A change from one to the other of the above described two states is taught by operating an operation panel and the respective driving means of two arms constituting one articulation angle are controlled based on the above described teaching information so that the articulation angle may be changed from one state to the other state, whereby rotation of the respective arms is controlled.

Abstract: A robotic control system and technique is disclosed involving image sensing of an object to be subjected to robotic action, to obtain analog image signals that are converted into binary image signal matrices which, through the use of a mask algorithm image processor (MAIP), are analyzed, and selected signals thereof corresponding to predetermined portions of the object defining points of interest at which robotic action is to be effected are fed to a computer to control movement of a robotic arm, tool or the like to effect some physical action at said predetermined points of interest of the object, in real time.

Abstract: This apparatus includes a keyboard for the search by user for successive regions of a microfiche bearing information which he needs, a microfiche reader itself having mechanically defined coordinates of the regions sought using the keyboard, and further having the capacity to project and present said regions and a control unit.It is characterized in that the control unit comprises a microprocessor (31) with which are associated a first memory (47) containing data relating to the operation of the different elements of the apparatus and a second plug-in memory (48) containing data associated with the information borne by the microfiche and defining a decision tree, the microprocessor transmitting instructions to the elements (35, 37, 39) of the apparatus to present complementary information, so that the user can continue his search within the decision tree.

Abstract: By applying to a linear, time-invariant process or system a pulse of predetermined duration instead of a step function and measuring the area enclosed by the pulse and the response curve of the process, respectively, instead of measuring the slope of a tangent line to the point of inflection of the response curve, the time constant or constants of a closed-loop (self-balancing) or open-loop (non-self-balancing) process may be accurately determined and from such time constant or constants the process may be optimally tuned according to one of the accepted tuning methods.

Abstract: A position regulation system containing a digital incremental measuring apparatus. The use of a discriminator and a computer allows the detection of long distances with high resolution, without counters or with only very short counters. The system is capable of automatically advancing to certain positions at a preselected speed or with preselected acceleration and of accordingly determining priorities for the positioning or adjustment magnitudes used for the advance.