Abstract: A wobulated signal generator includes a chain of delay elements and control circuitry. The chain of delay elements includes first delay elements, second delay elements, and third delay elements. The control circuitry, in operation, enables a number of the first delay elements, disables a number of the third delay elements, and enables a selected number of the second delay elements, defining a period of time between two consecutive rising edges of a digital wobulated signal at an output of the wobulated signal generator. The control circuitry monitors an average frequency of the digitally wobulated signal, and selectively modifies the number of enabled first delay elements and the number of disabled third delay elements based on the monitored average frequency of the digitally wobulated signal.

Abstract: A fall protection device configured to retain and prevent the fall of a connecting pin used for an end-to-end assembly of two frame elements of a structure, the fall protection device includes a clamping collar having at least one internal groove, configurable between an open position capable of authorizing the insertion of an enlarged head of the connecting pin, and at least one closed position capable of locking the enlarged head inside the internal groove. The device further includes a lock cooperating with the clamping collar to lock the clamping collar in the closed position and a mooring link anchored on the clamping collar to moor the device on a fixed element.

Abstract: A cryptographic device includes hardware data processing circuitry and software data processing circuitry coupled to the hardware data processing circuitry. The device, in operation, executes a plurality of rounds of a symmetrical data cipher algorithm and protects the execution of the plurality of rounds of the symmetrical data cipher algorithm. The protecting includes executing data masking and unmasking operations using the hardware data processing circuitry, executing linear operations applied to data using the software data processing circuitry, executing linear operations applied to masks using the hardware data processing circuitry, and executing non-linear operations applied to data using one of the hardware data processing circuitry or the software data processing circuitry.

Abstract: A height access device enables motorized access to the driving station of a tower crane atop a mast formed of superposed mast elements. It includes a lift cabin installed inside the mast of the crane and movable vertically along the mast. The height access devices further includes a working platform positioned above and separably connected to the lift cabin. A coupling device provides a non-permanent connection of the working platform to the lift cabin and immobilizes the working platform relative to the mast at a required height. The height access device enables the crane driver to ascend and descend with the lift cabin alone when disconnected from the working platform and with the lift cabin and working platform together, particularly during the assembly and dismantling of the mast.

Abstract: A method of installing and removing concrete blocks involves using handling device that is equipped with means for attaching and suspending a concrete block and which itself comprises a protective barrier placed temporarily on the concrete block to safeguard the operations of detaching or attaching this block. The barrier advantageously has safeguarded lateral access of the safety bow type that comes into register or alignment with rungs with which the concrete blocks are equipped. The method keeps an operator safe while installing and removing stackable concrete blocks, particularly an operation in which the concrete blocks are stacked on a base chassis of a tower crane.

Abstract: A height access device enables motorized access to the driving station of a tower crane atop a mast formed of superposed mast elements. It includes a lift cabin installed inside the mast of the crane and movable vertically along the mast. The height access devices further includes a working platform positioned above and separably connected to the lift cabin. A coupling device provides a non-permanent connection of the working platform to the lift cabin and immobilizes the working platform relative to the mast at a required height. The height access device enables the crane driver to ascend and descend with the lift cabin alone when disconnected from the working platform and with the lift cabin and working platform together, particularly during the assembly and dismantling of the mast.