Abstract: An opening detection device for an opening element such as a door or window including a module that is applied to an inner side of the opening element, wherein the module includes means for detecting movement of the opening element, first presence detection means forming a conical beam defining what is termed a trust perimeter encompassing an operating distance over which an operator operates the mechanism for opening the opening element on the first side of the opening element, second presence detection means for detecting a presence on what is termed a mistrust perimeter circumscribed around the opening element and means for processing data from the detection means, for memory storage and for computation that are connected to the detection means.

Abstract: An opening detection device for an opening element such as a door or window including a module that is applied to an inner side of the opening element, wherein the module includes means for detecting movement of the opening element, first presence detection means forming a conical beam defining what is termed a trust perimeter encompassing an operating distance over which an operator operates the mechanism for opening the opening element on the first side of the opening element, second presence detection means for detecting a presence on what is termed a mistrust perimeter circumscribed around the opening element and means for processing data from the detection means, for memory storage and for computation that are connected to the detection means.

Abstract: A radio transmission method which includes a steps of simulation of a phase modulation of a radio carrier by the successive transmission of a carrier of a main frequency f and of a carrier of an offset frequency f+?f, the offset frequency having a frequency difference suitable for simulating a given phase shift of the main frequency at the end of a given time T. The invention further relates to a radio transmission device for implementing the method which includes a radio integrated circuit for generating programmable frequency modulation, means for programming, in this radio integrated circuit, the main frequency f and the offset frequency f+?f and means for driving this radio integrated circuit in order to generate the frequencies as a function of the signal to be transmitted.

Abstract: A radio transmission method which includes a steps of simulation of a phase modulation of a radio carrier by the successive transmission of a carrier of a main frequency f and of a carrier of an offset frequency f+?f, the offset frequency having a frequency difference suitable for simulating a given phase shift of the main frequency at the end of a given time T. The invention further relates to a radio transmission device for implementing the method which includes a radio integrated circuit for generating programmable frequency modulation, means for programming, in this radio integrated circuit, the main frequency f and the offset frequency f+?f and means for driving this radio integrated circuit in order to generate the frequencies as a function of the signal to be transmitted.