Abstract: A system for managing data of an environment of an endodontic instrument, which includes: an endodontic instrument, intended to experience several stages of the life cycle such as logistics, use during endodontic treatment, end of life, the instrument being equipped with a unique identifier, and presenting recommended use parameters; an element for obtaining at least one real usage parameter experienced by the instrument during a life cycle stage; an element for reading the unique identifier during at least one stage of the life cycle of the instrument; computer equipment intended to be connected to the reading element and the obtaining element, including a database, and executing a computer program. The computer program is configured to record in the database, during at least one life cycle step, the unique identifier of the instrument read, the actual usage parameter obtained, a timestamp, and this recording is authenticated.

Abstract: A method for warning of an instrument break risk during an endodontic treatment. The method includes the following steps: acquiring the shape of a root canal to be treated; identifying a risk zone, on the basis of complexities in the shape of the canal, such as bends or bifurcations in the canal; in real-time, acquiring a working depth of the instrument; determining the position of the instrument within the canal, and issuing a warning when the instrument reaches the risk zone.

Abstract: A method for collecting usage data of an endodontic instrument. The method includes the following steps: acquiring data relating to the shape of a root canal to be treated; at regular intervals, acquiring data relating to the working depth of the instrument in the root canal; at regular intervals, acquiring data relating to the stress undergone by the instrument during work; and producing a database linking each data item acquired.

Abstract: A handpiece for endodontic practice, which is devised to drive a root canal instrument and includes: a control unit which runs a computer program, and a measuring element for measuring mechanical stresses experienced by the instrument, the measuring element is connected to the control unit. The computer program being configured to compare the mechanical stresses experienced by the instrument with respect to a predefined threshold, the predefined threshold preferably being a threshold permissible by the instrument. The mechanical stresses are at least axial stresses, and depending on the comparison between the axial stresses experienced by the instrument and the threshold: the computer program is programmed to adapt the driving of the instrument, and/or the handpiece including a warning element, and the computer program is programmed to activate the warning element.

Abstract: A system for managing data of an environment of an endodontic instrument, which includes: an endodontic instrument, intended to experience several stages of the life cycle such as logistics, use during endodontic treatment, end of life, the instrument being equipped with a unique identifier, and presenting recommended use parameters; an element for obtaining at least one real usage parameter experienced by the instrument during a life cycle stage; an element for reading the unique identifier during at least one stage of the life cycle of the instrument; computer equipment intended to be connected to the reading element and the obtaining element, including a database, and executing a computer program. The computer program is configured to record in the database, during at least one life cycle step, the unique identifier of the instrument read, the actual usage parameter obtained, a timestamp, and this recording is authenticated.

Abstract: A method of managing an electronic apparatus including a case containing a microcontroller powered with electrical energy by an electrical energy storage and connected to a time base, a mechanism of measuring light intensity, a mechanism of detecting whether the apparatus is being worn, the microcontroller also being connected to a first display and a second display, arranged, in an active operating mode, to be controlled by the electronic control circuit to display at least a first temporal data item at least provided by the time base.

Abstract: The timepiece includes first (1) and second (2) rings to which indications (3, 4) are affixed for displaying, in combination with each other, a time-related magnitude (5), which appears in a large aperture (6). The rings (1, 2) have equal dimensions, are arranged one on top of the other and off-centre in relation to each other such that, at the vertical of the large aperture, the outer edge (7) of the first ring (1) substantially borders the inner edge (8) of the second ring (2).

Abstract: The invention concerns a water resistant portable object such as a diving watch including a sound generator device (12) and a microprocessor (1), characterized in that it emits acoustic signals at two different frequencies (f1) and (f2) as a function of the medium, air or water, in which the wearer of the watch is situated.

Abstract: The present invention provides a method for detecting the start of a dive for a portable electronic device (1) comprising a pressure sensor (5) for measuring the value of the ambient pressure (P) as well as electronic circuits (2) for processing the pressure measurement results comprising a time base (4) and at least one memory zone (7, 8). The detection method updates the reference pressure value (Pref) on the basis of ambient pressure (P) measurements, this value being used to detect the start of a dive. In certain particular conditions, the method according to the present invention suspects the start of a dive, and backs up the value (Psauv) of the reference pressure (Pref) stored before updating. If the start of a dive is confirmed after having been suspected, the reference pressure value (Pref) stored is replaced by the backed up value (Psauv) upon activation of the dive mode.

Abstract: The present invention concerns a method for detecting the start of a dive for implementation in a portable electronic device (1) of the diving computer type. More specifically, the method is for implementation in a device of this type having at least a first operating mode and a second operating mode, called the dive mode. This device includes a pressure sensor (5) for measuring the ambient pressure value (P) and electronic circuits (2) for processing the pressure measurement results including a time base (4) and at least one memory zone (7, 8). The detection method according to the present invention more particularly proposes making correction to certain measured pressure values before storing them as reference pressure values (Pref). Thus, the start of a dive can be detected with a high level of reliability solely on the basis of ambient pressure measurements.

Abstract: The present invention proposes a portable barometric altimeter (10) including a pressure sensor (14), a calculation unit (16) which determines an altitude value (H) as a function of the pressure (P) measured by the sensor (14) and as a function of a reference temperature (T0) corresponding to an estimate of the temperature of the air mass at sea level, and a time measuring unit (18) that supplies calendar data (D), characterized in that it includes a correction circuit (32), which selects the reference temperature value (T0) from among a series of values (TS) contained in a database stored in the altimeter (10), as a function of the date (D) and as a function of a predefined climate value (C). The invention also proposes a method of determining altitude (H).

Abstract: In an electronic apparatus worn on the wrist such as a diver's wristwatch or an altimeter, a pressure sensor (10) is mounted from the exterior in a housing (11), located in one flank (9) of the case (2) of the apparatus and closed by a cap (13) provided with at least one orifice (32) for transmitting the ambient pressure towards said housing. The sensor is mounted in the housing by means of a sealing gasket (12). A protective screen (14) is placed between the central wall (31) of the cap and the exposed surface (22) of the sensor, in order to prevent solid bodies and/or solar light being able to damage the sensor. Preferably, this screen is formed by a perforated plate fixed to the cap and whose holes (42) are shifted laterally with respect to each orifice (32) of the cap, such that all of the transmission paths of the ambient pressure from the exterior to the exposed surface of the sensor are sinuous.

Abstract: There is disclosed a timepiece (1) powered by an electric power source formed by a battery (P) including a case (2, 21, 22), a battery compartment (7) formed by a housing (6) arranged inside said case to accommodate the battery, and means for closing the housing including a removable cover (8) able to be mechanically locked onto the case. The timepiece further includes connecting means (10, 11), arranged partly in said housing, for allowing electric access to electric or electronic components of the timepiece housed within the case. These connecting means include a plurality of connection terminals (10) arranged in the housing at the periphery of the battery, this housing being arranged so that the connection terminals are accessible from outside the case after the removal of the removable cover, without requiring the battery to be removed from its housing.