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Timex Group USA, Inc. (formerly known as Timex Corporation) is an American global watch manufacturing company founded in 1854 as the Waterbury Clock Company in Waterbury, Connecticut. In 1944, the company became insolvent but was reformed into Timex Corporation. In 2008, the company was acquired by Timex Group B.V. and was renamed Timex Group USA.
Radio clocks may include any feature available for a clock, such as alarm function, display of ambient temperature and humidity, broadcast radio reception, etc. One common style of radio-controlled clock uses time signals transmitted by dedicated terrestrial longwave radio transmitters, which emit a time code that can be demodulated and ...
A mid-1940s alarm clock radio with AM radio stations only A typical 1980s clock radio featuring a digital clock/alarm and an analogue FM/MW/LW receiver. A clock radio is an alarm clock and radio receiver integrated in one device. [18] The clock may turn on the radio at a designated time to wake the user, and usually includes a buzzer alarm.
November 1917 ad for an Ingersoll "Radiolite" watch, one of the first watches mass marketed in the USA featuring a radium-illuminated dial. Radium was discovered by Marie and Pierre Curie in 1898 [1] and was soon combined with paint to make luminescent paint, which was applied to clocks, airplane instruments, and the like, to be able to read them in the dark.
Talking alarm clock: Only a few IC's are needed to build a clock that really tells time. Lee Glinski: 54/5: May 1983 Car burglar alarm: An inexpensive form of insurance that can avert an automobile break-in. Edward W. Loxterkamp: 54/5: May 1983 VLF-HF passive antenna tuner: Another approach to optimizing reception at very-low frequencies. R. W ...
Dedicated radio time signal stations transmit a signal that allows automatic synchronization of clocks, and commercial broadcasters still include time signals in their programming. Today, global navigation satellite systems ( GNSS ) radio signals are used to precisely distribute time signals over much of the world.
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