Abstract: The device is intended to be used for recording the position reached by a moving part, such as the arm of an industrial robot moved by a rotary motor (M). The device comprises, in an assembly capable of being associated with the said moving part, an angular-position transducer such as a resolver (2), capable of generating at least one signal (4, 5) indicating the position reached by the motor (M) during a rotation, counting means (12) connected to the angular-position transducer (2), capable of storing a cumulative count of the signal generated by the transducer (2) itself and indicating the position reached by the moving part, and power supply means such as a buffer battery (18) capable of keeping the position transducer (2) and the counting means (12) active even when there is no external power supply.

Abstract: An apparatus for controlling and programming welding guns, constituted by a set of electronic component circuit boards enclosed in a casing provided with a keyboard and a programming and control display unit which are connected electrically together so as to enable various functions to be performed on the static switches of the welding gun to which the apparatus is connected, namely: a first so-called basic function, i.e.

Abstract: For the selective energization of combinations of up to m data outputs of a data concentrator with n data inputs (n > m), the concentrator is provided with n control inputs energizable in various patterns. The concentrator comprises a logic network with an enabling section and a performing section, each in the form of a truncated orthogonal matrix with m rows and n columns of gating circuits. In each matrix the number of gating circuits decreases from n in the first row to (n-m+1) in the last row.

Abstract: A call monitor for a telephone exchange, including a processor intervening in the establishment of a connection between associated line links with the aid of a switching network, comprises a first memory storing information about each line link and a second memory containing codes that identify all possible states of a connection of interest to the processor along with all intervening conditions termed evolutions. During a time slot allocated to a particular line link, a multibit comparator receives data from the first memory concerning a connection involving that line link, along with updating information from the line link itself, on one set of inputs and further receives, on another set of inputs, a succession of evolutionary codes read out from the second memory until a match is detected; the read-out is then terminated and an instruction, if required, is sent to the processor and/or to the switching network.

Abstract: A dynamic memory UR containing n different message words, carried on as many endless signal tracks, works into a set of m temporal voice channels through a TDM switching matrix RC enabling any channel to be periodically connected, in its recurrent time slot, to a selected signal track. Messages synthesized from up to k words may provide information on the charge of a toll call, for example, as determined in a processor of a central office, the processor translating that information into data codes identifying corresponding signal tracks in response to a request from an inquiring subscriber. A first static memory M.sub.

Abstract: Switching criteria are transmitted over a plurality of trunk lines to a central office of a telecommunication system in the form of a set of binary signals modulated on three carriers for each trunk line, the triads of carriers being cyclically sampled and demodulated. During each sampling interval t.sub.i allocated to a particular trunk G.sub.i within a cycle, a locally generated identification code of that trunk is transmitted to each of three sections of a read-only memory MS, each memory section permanently storing four different threshold values for the length of "on" signals (1) and "off" signals (0). Integrators IN, rejecting spurious changeovers from one type of signal to the other, feed respective counters CT via respective coincidence circuits CFR which receive from a register MG the bits of the preceding cycle and reset arithmetic units .sigma.