Electronic device with analogue display of the history of at least one quantity measured by a sensor

An electronic device including:

• (a) a case containing a watch movement on which a dial is mounted, the watch movement including electronic circuits able to generate time signals to be sent to motor means controlling at least two analogue display members, wherein the analogue display members are arranged above the dial to display current time in a first operating mode;
• and the device further including
• (b) a sensor for a physical magnitude, for periodic acquisition of value of the physical magnitude as a function of time in a second operating mode, wherein the sensor is connected to means for processing values capable of generating electric signals to storage means provided for storing values, wherein the device has a third operating mode in which the processing means are arranged for generating control signals to be sent to the motor means for a display representative of stored values of the physical magnitude as a function of time so that at least a first analogue display member of the at least two analogue display members indicates, opposite suitable graduations of the device, the value of a variable the change in which is linked to physical magnitude value, on condition that the variable does not give any indication relating to the time remaining before a decompression stop has to be made or any indication relating to a minimum depth not to be exceeded by a person wearing the electronic device when coming up from a dive, when a second analogue display member of the at least two analogue display members is made to indicate information relating to a depth.

An electronic device including:

• (a) a case containing a dial;
• (b) electronic circuits including a time base and able to generate time signals to be sent to motor means controlling at least two analogue display members, arranged above the dial;
• and
• (c) a sensor for a physical magnitude, for periodic acquisition of value of the physical magnitude as a function of time in a particular operating mode, wherein the sensor is connected to means for processing the values capable of generating electric signals to storage means provided for storing values, wherein the device has an additional operating mode that is a historic mode in which the processing means are arranged for generating control signals to be sent to the motor means for a display representative of stored values of the physical magnitude as a function of time so that at least a first analogue display member of the at least two analogue display members indicates, opposite suitable graduations of the device, a value of a variable the change in which is linked to the physical magnitude value, on condition that the variable does not give any indication relating to time remaining before a decompression stop has to be made, when the second analogue display member of the at least two analogue display members is made to indicate information relating to a depth.

A historic display method for electronic device including a case containing a watch movement on which a dial is mounted, the watch movement including electronic circuits able to generate time signals to be sent to motor means controlling at least two analogue display members, said analogue display members being arranged above the dial to display current time in a first operating mode that is a time mode, the device further including a sensor for a physical magnitude, wherein the method includes the steps of:

• (a) first of all, performing a periodic acquisition of value of the physical magnitude as a function of time in a second operating mode of the electronic device;
• (b) transmitting results of the periodic acquisition to means for processing the values capable of generating electric signals to be sent to storage means provided for storing said values;
• and
• (c) in a third operating mode that is a historic mode, controlling the motor means to form a display representative of stored values of the physical magnitude as a function of time, at least a first analogue display member of the at least two analogue display members indicating, opposite appropriate graduations of the device, a value of a variable the change in which is linked to the physical magnitude value, on condition that the variable does not give any indication relating to time remaining before a decompression stop has to be made, when a second analogue member of the at least two analogue display members is made to indicate information relating to a depth.