Abstract: An interconnecting substrate according to the invention comprises an insulating base on which rests a set of alternating, superimposed conductive and insulating layers. Contacts are formed on the uppermost insulating layer which border at least one site or zone intended for an integrated circuit chip device whose output conductors are to be connected to the said contacts. Through-connections enable the contacts to be coupled to one of the inner conductive layers. The through-connections include at least one through-connection on the inside of the site relative to at least a predetermined one of the said contacts. A shunt conductor means connected to the predetermined contact has a part outside the site which is connected to an additional contact which serves as a substitute or replaces the said predetermined contact for the connection to the associated output conductor of the chip device.

Abstract: The invention relates to a method and circuit arrangement for magnetic recording of a digital data signal composed of a set of transitions. A recording signal is formed by superposition on the data signal of a high frequency, constant amplitude, magnetic biasing signal S.sub.p. The biasing signal is phase-modulated relative to the data signal transitions. The invention remedies "peak shift" and can be applied to any rectangular or sinusoidal biasing signal.

Abstract: A device for semi-automatic dismantling of a modular component which is soldered and attached to a substrate forming a printed circuit. The component to be dismantled is placed under a hot gas source while a force member applies a resilient thrust, the force member comprising a needle arranged to be placed at the base of the component. The needle is slightly bent to apply a biasing force before controlling the ejection of the hot gas to cause melting of the solder at the ends of the connecting pieces and melting of the adhesive layer by which the component is attached to the substrate.

Abstract: A data processing method of operation and system uses a processor, an addressable data memory, and an addressable data extension read-write memory. As a data word is written into and read out of the data memory, a data extension associated with the data word may be simultaneously respectively written into and read out of the extension memory. The extension supplements the data word to effectively double the length of the data word. An address bus and control bus cause the simultaneous inputting/outputting of data and extensions to and from the data memory and extension memory respectively. An intermediate storage means is used for inputting and outputting extensions to and from the extension memory. The intermediate storage means includes an interface adapter which interfaces the extension memory to the processor as though the extension memory is a peripheral I/O device. An INTERRUPT is used to alert the processor of the reading of an extended data word.

Abstract: The invention relates to data processing systems making use of an addressable memory. It proposes a process and system permitting qualifying terms to be associated with the data contained in the data memory by writing these qualifying terms at locations associated with the data within a qualifier and set aside for this purpose. These qualifying terms are characteristics of the data or the processing undergone by the data. The qualifier memory, which is interfaced with the processor as though it was a peripheral I/O device, uses an INTERUPT to alert the processor of the occurrence of a call on data which has an associated qualifier.

Abstract: A separately excited D.C. motor employs an analog servo control responsive to a speed control input signal that controls the derivation of a compensating signal for the motor back emf. The speed control and compensating signals are combined to control the motor speed via an analog regulator. A digital shaft encoder responsive to the motor position supplies a pulsed signal to a comparator that is also responsive to a desired position signal that is derived from the speed control signal. The comparator derives an integrated error signal that is supplied to the analog regulator. Application of the speed control signal to the regulator is delayed if a thermal simulator for the motor characteristics indicates motor overheating. In response to the compensated, desired speed indicating signal indicating that the motor has been ordered to stop, the error signal is decoupled from the analog regulator.

Abstract: To reduce the proportion of rejects resulting by reasons of short circuits in the manufacture and use of miniaturized multilayer circuits and to improve the electric efficiency, there is inserted between each conductive layer of low resistance and each insulating layer of high thermal stability, a very thin layer of a conductive material, preferably non-magnetic, of high resistivity and of crystallographic reference at least compatible with respect to the first conductive material and of low or negligible thermal expansion in the range of temperatures to which the circuits are submitted both during manufacture and use.

Abstract: A device for removing excess powdered pigment deposited on and adhering to a surface has a chamber provided with air under pressure. The chamber has an orifice with parallel edges extending parallel to the surface with one edge set back from the other edge. The orifice has an opening of from 0.2 mm to 0.02 mm and is spaced from said surface by not more than 1 cm.

Abstract: The invention relates to a recording or printing device utilizing a jet of liquid, which device comprises a carriage which may be displaced in a direction of movement parallel to the printing medium. This carriage carries a nozzle which discharges a jet of ink which is divided into a series of droplets, the dots formed by the impingement of these droplets on the printing medium making it possible to obtain images formed by dot. In order to avoid smearing of the image formed by the dots several techniques are disclosed which compensate for the relative movement between the carriage and the paper or printing medium, thereby making the path of the droplets more nearly perpendicular to the paper. In one embodiment, for example, the carriage carries electrodes which have the role of deflecting the orientation of the jet of liquid dispatched by the nozzle, in the opposite direction to that of the movement of the carriage.

Abstract: A memory matrix is divided into a plurality of zones, one of which has a predetermined address and is set aside for a control character having multiple bits, stored in plural cells of the one zone. Each cell stores electric charge, with the cells in the control zone storing a charge no greater than that in the remaining zones. After the cells of the control zone have been initially supplied with the predetermined control character, the cells of the control zone are isolated from write command signals during normal operation. The cells of the control zone can be read out during normal operation.

Abstract: A circuit arrangement for reducing access time to information contained in a memory system that includes a register for collecting the information contained in the memory system. The register operates as a flip-flop and is composed of a first inverter, an AND gate and a second inverter. The input of the first inverter is connected to receive the information bits read in a memory block. The AND gate includes two inputs, one of which is connected to the output of the first inverter. The other input receives, at the beginning of the memory reading cycle, an initialization signal for positioning the flip-flop in a given state. The output of the AND gate is connected to the second inverter which has its output connected, in turn, to the input receiving information read from the memory system.

Abstract: An improvement to an automatic document handling machine of the kind having at least one processing station and possibly a guide track to hold and transport documents to the processing station. The processing station or the guide track includes an entry port for documents and a unit insertion means for inserting one of said documents into the processing station or the guide track. The insertion means comprising a support means for the document which includes an exit port for documents, a drive means capable of making contact with the document in the said support means to feed the document towards the exit, and an engaging means which is adapted to produce relative movement between support means and the drive means. The insertion means is arranged close to the processing station or the guide track and is positioned in such a way that the document exit port faces the document entry port at least when the said engaging means is operated.

Abstract: A method and apparatus for processing an analog signal before it is converted into steep-sided pulses wherein a variable D.C. voltage is generated whose variation is representative of the change in values of the negative-going portions of the analog signal. A voltage summing means receives on the one hand the analog signal and on the other hand the variable D.C. voltage to provide steep-sided output pulses in synchronization with the "significant" portions of the analog signal.

Abstract: An interface for the exchange of data between memories and processing devices of a computer, which interface does not depend on any particular technology of the processing and memory units and which is readily adaptable to units having different timing for the signals exchanged. The interface employs asynchronous dialog signals, with adjustable timing provided by delay devices such as delay lines. The initiation of a memory cycle involves two asynchronous signals: a memory cycle request signal output by a portion of the interface included within the processing unit, and a cycle acknowledge signal output by a portion of the interface included within the memory unit and transmitted back to the processing unit to indicate that the requested memory cycle has in fact started.

Abstract: A device is provided for automatically determining the storage capacity of a data processing or transmission system and signalling when the storage capacity is inadequate to handle an incoming address. The store includes a plurality of storage fractions made up of storage modules adopted to be plugged into a printed circuit board having a conductor pattern thereon and connector locations disposed along the conductor pattern. The modules may be plugged into the circuit board and a full storage fraction is established when electrical continuity is established along the whole length of a conductor which connects all of the location localities assigned to a storage fraction. The conductor pattern is interrupted at the connection localities of the modules of one and the same storage fraction.

Abstract: A magnetic transducer for reading and/or writing data contained on a carrier comprises two thin magnetic layers constituting the first and second pole pieces of the transducer. The layers are superimposed and magnetically coupled at one end and arranged at the other end adjacent the carrier, substantially perpendicular to the latter to form an air-gap to establish a magnetic circuit for the transducer. A coil is disposed between the thin magnetic layers. The coil is of thin conductive layers superimposed in a direction perpendicular to the plane of the magnetic layers and separated from each other by thin electrically insulating layers. The coil comprises windings of a number of turns N.sub.1 and N.sub.2 adapted to be traversed respectively by currents I.sub.1 and I.sub.2, the coefficients of mutual magnetic coupling of each of the thin conductive layers of each of the two windings with the downstream pole piece being respectively designated by L.sub.i1 and L.sub.

Abstract: A process for generating a magnetic induction field within a magnetic medium. A magnetic energizing field and a selection wave are caused to act at the same time at each point on a path of at least one unsaturated portion of the magnetic medium, in such manner as to modify the magnetic properties of the medium at this point and so as to produce therein the said induction field. The process is applicable to devices for generating a magnetic field utilized in magnetic data recording systems.

Abstract: A hopper for receiving documents and stacking documents flat wherein the documents are fed on edge along a document feeding track which terminates tangentially to a vertical back plate of the hopper includes a first guide means which moves the upper edge of a document, which enters the hopper parallel to the plate, away from the plate, and a second guide means for guiding the lower edge of the document while holding it on the same course until the document reaches a position where it drops into the hopper by tilting about its lower edge. The hopper includes a tilting ramp which is attached to the vertical back plate at a level substantially lower than that of the upper edge of a document entering the hopper. The ramp moves the upper edge of the document away from the plate as the document is introduced into the hopper.

Abstract: A magnetic printing process and multicopy magnetic printing machine employing this process is disclosed. The machine comprises a magnetizable carrier 2, magnetic recording transducers 8, an applicator 10 for coating a developer product onto the carrier, a device for application of the carrier coated with the said developer product onto a document 12 which is to be printed and finally a device 16 for erasing the magnetized areas. In accordance with the invention, the developer product utilized contains magnetic particles which are formed by grains whose dimensions are of the order of those of the elementary magnetized areas. The imprint on the document is then produced by pressing.

Abstract: Improvement to a check sorter. The sorter comprises a sorting track and a number of diverters. Each diverter is pivotable about a vertical axis. Each diverter is caused to pivot by the magnetic effect created between a magnet attached to the diverter and a coil 21 arranged close to the magnet.