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2. Global Positioning System - Wikipedia

   en.wikipedia.org/wiki/Global_Positioning_System

   The Global Positioning System ( GPS ), originally Navstar GPS, [2] is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. [3] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near ...

3. GPS week number rollover - Wikipedia

   en.wikipedia.org/wiki/GPS_week_number_rollover

   The GPS week number rollover is a phenomenon that happens every 1,024 weeks, which is about 19.6 years. The Global Positioning System (GPS) broadcasts a date, including a week number counter that is stored in only ten binary digits, whose range is therefore 0–1,023. After 1,023, an integer overflow causes the internal value to roll over ...

4. Indoor positioning system - Wikipedia

   en.wikipedia.org/wiki/Indoor_positioning_system

   Indoor positioning system. An indoor location tracking map on a mobile phone. An indoor positioning system ( IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations.

5. Leap second - Wikipedia

   en.wikipedia.org/wiki/Leap_second

   Screenshot of the UTC clock from time.gov during the leap second on 31 December 2016.. A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between precise time (International Atomic Time (TAI), as measured by atomic clocks) and imprecise observed solar time (), which varies due to irregularities and long-term ...

6. Electronic monitoring in the United States - Wikipedia

   en.wikipedia.org/wiki/Electronic_monitoring_in...

   GPS monitoring devices are most commonly used by law enforcement in Florida, Texas, California, Massachusetts, and Michigan. In 2020, approximately 4.5 million adults, twice the inmate population, were on probation or parole in what is commonly referred to as "community supervision," although only two percent were electronically supervised as ...

7. Smartwatch - Wikipedia

   en.wikipedia.org/wiki/Smartwatch

   As of January 2022, Infinitime version 1.8's additional features include: secure Bluetooth pairing, customisable watch faces, a flashlight, basic paint program, stopwatch, alarm clock, countdown timer, step counter, heart rate monitor, a one-player pong clone, a numerical puzzle game and a metronome. Features are under ongoing development, with ...