Electronic device having stopwatch and heat index indicator functionality
An electronic device including a multimode electronic stopwatch having a digital display and programmable integrated circuit programmed to keep time and to provide a plurality of timepiece operating modes. The device includes a humidity sensor for acquiring relative humidity information, and a temperature sensor for acquiring ambient temperature information. The integrated circuit also determines a heat index value based on the temperature and humidity information. The device has a display for displaying to the user the determined heat index value, and an alarm for notifying the user when a particular heat index level is reached.
1 . An electronic device including a multimode electronic stopwatch having a digital display and an integrated circuit that keeps time and provides a plurality of stopwatch operating modes, comprising a humidity sensor for acquiring relative humidity information.
2 . The electronic device of claim 1 , further comprising a temperature sensor for acquiring ambient temperature information.
3 . The electronic device of claim 2 , wherein the integrated circuit determines a heat index value based on the temperature and humidity information.
4 . The electronic device of claim 3 , further comprising a display for displaying to the user the determined heat index value.
5 . The electronic device of claim 3 , further comprising a user alarm for notifying the user when a particular heat index level is reached.
6 . The electronic device of claim 5 , wherein the particular heat index level can be set by the user.
7 . The electronic device of claim 5 , wherein the alarm is audible.
8 . The electronic device of claim 5 , wherein the alarm is visible.
9 . The electronic device of claim 5 , wherein the alarm is a vibrating alarm.
10 . The electronic device of claim 1 , further comprising a user alarm for notifying the user when a particular humidity is reached.
11 . The electronic device of claim 2 , further comprising a user alarm for notifying the user when a particular ambient temperature is reached.
12 . The electronic device of claim 1 , further comprising a display for displaying to the user the relative humidity.
13 . The electronic device of claim 2 , further comprising a display for displaying to the user the ambient temperature.
14 . An electronic device including a multimode electronic stopwatch having a digital display and an integrated circuit that keeps time and provides a plurality of stopwatch operating modes, comprising:
a humidity sensor for acquiring relative humidity information;
a temperature sensor for acquiring ambient temperature information;
wherein the integrated circuit determines a heat index value based on the temperature and humidity information;
a display for displaying to the user at least the determined heat index value; and
a user alarm for notifying the user when a particular heat index level is reached.
15 . The electronic device of claim 14 , wherein the particular heat index level can be set by the user.
16 . The electronic device of claim 14 , wherein the alarm is audible.
17 . The electronic device of claim 14 , wherein the alarm is visible.
18 . The electronic device of claim 14 , wherein the alarm is a vibrating alarm.