Abstract: The invention relates to a speed controller, in particular for video games, capable of operating according to a sequential mode and a manual mode comprising: a support casing (1), a lever (2) hingeably mounted on said support casing and capable of pivoting from a neutral position, in a longitudinal direction around a transversal axis and in a transversal direction around a longitudinal axis, and detection means for detecting, in the manual mode, at least two different positions of the lever obtained by the pivoting thereof in at least the longitudinal direction from the neutral position and, in the sequential mode, at least two different positions of the lever, characterized in that the detection means are capable of detecting, in the sequential mode, at least two different positions of the lever obtained by the pivoting thereof in the transversal direction from the neutral position.

Abstract: The invention relates to a video game controller (1) having a rotatable actuator (2) with respect to a frame (3), so as to simulate at least one simulated vehicle steering column rotation control.

Abstract: The invention has for object a game controller having an actuator (2, 102) mobile in rotation in relation to a fixed part (3, 103), in such a way as to simulate a control of the rotation of a steering column of a simulated vehicle. According to the invention, the game controller implements means for detecting the displacement in rotation of the actuator (2, 102) comprising at least one Hall effect or magnetoresistive effect detecting unit, constituted of at least two elements, of which a permanent magnet and a magnetic sensor (24, 124). At least during the rotation of the actuator (2, 102), a first element is integral in rotation with the actuator (2, 102) and a second element is integral in rotation with said fixed part (3, 103).

Abstract: A joystick biased to return its stick to a neutral position and with compensation of the force applied by the biasing. The joystick has a stick that is moveable in relation to a base at least in rotation around two axes and biasing element mounted between said base and a movable element acting on said stick, tending to return said stick to a neutral position. The joystick further comprises compensator, mounted between the base and the movable element, and applying on the latter a force to compensate at least partially the force applied by the biasing, at least when said stick is located in the vicinity of said neutral position.

Abstract: The invention relates to a mini joystick including a handle which can be moved in relation to a body, in rotation along at least two axes of rotation. According to the invention, such a mini-joystick includes a Hall effect movement detection set including at least one first element interdependent in rotation with said handle and at least one second element fixed in relation to said body, said elements belonging to the group including the sensors and the magnets, delivering at least one item of information regarding the position of said handle, and detection means for detecting at least one push applied onto an upper part of said handle, able to deliver at least one item of control information when a push is applied, whatever the position of said handle in relation to said body.

Abstract: The invention relates to Hall effect joysticks, and accessories incorporating a Hall effect joystick of a smaller scale. The Hall effect joystick includes a handle which can be moved in relation to a base, in rotation along at least two axes. Said rotation is ensured by way of at least one ball joint including two ball joint elements of roughly the same radius, namely a head and a cup, one being able to pivot around the center of the other. A first of said ball joint elements is fixed in relation to said base and features an opening into which penetrates an extension of said handle, and a second of said ball joint elements is attached to said handle. The extension of said handle includes, in proximity to its lower extremity, at least one sensor and/or at least one magnet of a Hall effect movement detection set.

Abstract: The relocking device comprises a polyphase clock signal generator for producing n clock signals which are equally displaced in phase with respect to each other including the reference clock signal, and rephasing circuits each assigned to one data train to be relocked and each having the function of selecting that version of the clock signal which is most effectively locked with respect to the data train to be processed by means of a double-sampling circuit and a clock-signal selecting circuit addressed by a sequential scanning circuit controlled by a comparator. The rephasing circuits utilize said version for sampling precise values of the data contained in the data train concerned and regenerate said data train by resampling these values in synchronism with the reference clock signal.

Abstract: A multi-stage space-division switching network comprises groups of regenerators (RE1 to RE16) connected to input lines and to output lines of the switching network, it further includes groups of regenerators (RS1 to RS16) connected to a first end of intermediate links (LI1 to LI28) interconnecting two stages and groups of regenerators (R3.1 to R3.16) connected to the other ends of the intermediate links. A monitoring device comprises sampling devices (P) connected to the groups of regenerators and to a comparator circuit (CC). A main marker (MQP) receives connection instructions and sampling instructions and transmits these instructions to auxillary markers (MQ) which control the sampling circuits (P) and the switching circuits (C1, C2) of the switching network.

Abstract: A device for detecting errors in digital transmission systems which use a line signal whose digital running total is bounded and can only take n distinct states, e.g. a high data rate digital transmission system. The error detection device comprises a synchronous up/down counter with k bistables which give, in real time, the digital running total, and an end decoder formed by logic gates and which is sensitive to the up/down counter overflowing from either of its upper or lower limit values, the number k being an integer which satisfies the inequality:2.sup.k >n.gtoreq.2.sup.k-1.