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:
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.
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 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 translation:本发明提出了一种便携式气压高度计(10),包括压力传感器(14),计算单元(16),其根据由传感器(14)测量的压力(P)确定高度值(H);以及 作为与海平面上的空气质量的估计值相对应的参考温度(T 0> 0)的函数,以及提供日历数据(D)的时间测量单元(18),其特征在于 因为它包括一个校正电路(32),该校正电路从包含在存储的数据库中的一系列值(T S S S S S S)中选择参考温度值(T SUB> 0 ) 在高度计(10)中,作为日期(D)的函数和作为预定气候值(C)的函数。 本发明还提出了一种确定高度(H)的方法。
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:
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.