Abstract: The invention concerns a method for protecting sensitive data against overflow in a stack, memory space reserved for part of a program. Said method comprises an operation which consists in assigning a stack to each program part, during which the most upstream stack relatively to the displacement direction of an indicator in a stack, is assigned a task for operating on said sensitive data. Preferably, said method comprises the execution of a single task operating on said sensitive data.

Abstract: The invention concerns a device comprising a belt with one side opposite unsprung support means and extending between an upstream roller and a downstream roller both suspended so that the object can be sandwiched between the unsprung support means and said belt side, the latter being wound around at least two other rollers whereof at least one is unsprung.

Abstract: This machine for postage metering a flat object (6) such as an envelope or a label comprises a horizontal opening for inserting an object, leading to two stops (8, 9) at right angles, a device for holding the object by gripping it between a fixed upper ceiling (2) comprising a window (2′) and a lower plate (3) vertically movable by means of a drive mechanism, an ink jet printing device (1) whose nozzles are disposed inside the window (2′) of said ceiling, and a sensor (10) of the presence of an object in the vicinity of the corner of the stops (8, 9), which starts the drive mechanism of the plate (3) for gripping the object (6) and the printing cycle. A motorized transverse rake (4) moves the object (6), while it is gripped, in front of the printing device (1).

Abstract: A machine for printing flat objects of various thicknesses successively fed the length of a table by means of a feed mechanism and printed by means of a printing mechanism is provided. The feed mechanism includes at least two feed rollers between which the objects pass. Each of the at least two feed rollers is rotatable about an axis of rotation and at least one of the feed rollers is motorized. The printing mechanism includes a revolving printing drum and a motorized counter-printing roller rotatable about an axis of rotation. The machine also includes a lever having a first end, a second end, and a middle. The lever is pivotable at its middle and joined at its middle by a stop joint.

Abstract: A device for extracting the contents of an envelope pre-cut on three sides is provided. The device includes at least one bi-directional upper extraction roller, at least one bi-directional lower extraction roller cooperating with the upper extraction roller, and a receptacle for receiving the extracted contents of the pre-cut envelope.

Abstract: A device for unstacking and opening envelopes from a stack of envelopes is provided. The device includes a frame having a receptacle area for receiving the stack. At least one, but preferably two, endless belts are located at the bottom of the receptacle area for extracting an envelope from the bottom of the stack, the flap of the envelope folded and oriented upwardly and in a forward direction. At least one set, but preferably two sets, of cooperating drive rollers rotating in opposite directions are arranged such that the extracted envelope can pass therebetween. The drive rollers move the extracted envelope in a feed direction dependent on the direction of drive roller rotation. A fixed wedge-shaped deflector is located downstream from the drive rollers and is arranged at an angle relative to the forward feed direction.

Abstract: In a printing machine with a rotary drum (1) for franking envelopes (4), each print operation is performed at a constant rotational speed in a given direction, whereafter the direction of rotation of the drum (1) is reversed so that for the next print operation, the rotational speed of the drum (1) may be increased in said direction over a greater angle to achieve said constant speed.

Abstract: An electronic franking machine has a data reader for reading data stored in a microcircuit fitted in a chip card and includes a receptacle with respect to which are disposed a predetermined location and a punching mechanism.

Abstract: A method uses portable objects where the reading and writing of data in the memory are free, owing to the writing in the latter, if necessary, of elements which can be prepared and verified only if secret information kept both in a secure memory at the control center and in a secure memory in the machine with which the transmission is carried out is known.

Abstract: A postage machine includes a first meter portion comprising postage means commanded by a first microprocessor (50), a keyboard (22) and a display (21 ), and a second base portion comprising a second Microprocessor (53). The first and second microprocessors, in a normal mode, mode carry into practice a communications protocol adapted to have transmitted to the base messages representative of at least some of the commands acquired on the keyboard (22) and to have retransmitted from the base to the meter the commands executable by said meter, in such a way that, from the keyboard (22) of the meter, at least certain functions cannot be commanded unless the commands relative to such functions pass through pass through the base (12).

Abstract: This folding machine comprises two input rollers (5) for feeding the paper, two output rollers (18, 18') for discharging the paper controlling the movement, a paper guide (8) pivotally mounted between the input rollers (5) and the output rollers, capable of assuming a first and a second position and comprising a press roller (14, 14'), the assembly being controlled to permit forming loops and folds of the paper.

Abstract: An apparatus is disclosed for inserting a document into an envelope. The apparatus comprises a rotating assembly which includes a document tranferring means. In first position of the rotating assembly, an envelope is fed and a document is fed to the transferring means. While the assembly is rotated to a second position, the document is being conveyed to the envelope and inserted therein. The envelope is then discharged and the assembly is rotated back to its first position.

Abstract: A data-recording machine is protected against temperature overshoots by a device (12) for protecting electrical lines comprising two blister-type thermosensitive elements (10C, 10F) which control series-connected electric contacts (7C, 7F) so as to close the electrical line outside the normal operating range and to prohibit operation even after a return to said range.

Abstract: A printing assembly having a guiding and driving system for moving an article past ink emission nozzles. A detecting device detects the movement of the article through the assembly and based on that detection triggers emission of ink by the nozzles. Compressed air jets are forced toward the article, creating suction due to the Bernoulli effect which effectively maintains the article a set distance from the nozzles.

Abstract: A printing assembly having a guiding and driving system for moving an article past ink emission nozzles. A detecting device detects the movement of the article through the assembly and based on that detection triggers emission of ink by the nozzles. Compressed air jets are forced toward the article, creating suction due to the Bernoulli effect which effectively maintains the article a set distance from the nozzles.

Abstract: The invention includes a device and a method for recognizing the instantaneous position of a plurality of mechanical parts, the parts being linearly and incrementally movable between a departure position and an arrival position. The device includes a plurality of radiation modifying tags respectively associated and movable with the mechanical parts. There are a plurality of pairs of radiation emitters and receivers located on the opposite sides of the parts at incremental positions, whereby the pressence of a tag between a given pair causes modification of the radiation received by an associated receiver. The device further provides for generating detect signals from the receivers, and for recognizing that corroborating detect signals from the receivers correspond to a specific set of positions of the mechanical parts.