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Digital Camera with Atomic Clock

IP.com Disclosure Number: IPCOM000004534D
Publication Date: 2001-Jan-16
Document File: 1 page(s) / 607K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention is a digital camera 100 that includes an atomic clock 110. Atomic clocks are the official source of time for the U.S. Department of Defense and provide the standard of time for the United States. These clocks are maintained by the U.S. Navy, and provide time signals in a variety of formats, including radio signals. The present invention is calibrated to the national atomic clock in Colorado, which provides accurate time to 10 billionths of a second.

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Digital Camera with Atomic Clock

As digital cameras offer more and more features, they become increasingly difficult for their owners to use. One of the most valuable and frequently used features of a digital camera is a clock, because the clock allows the user to put a time and date stamp on their photographs. In spite of its usefulness, however, thousands of owners do not know how to program the clock successfully. What is needed is a way to automatically set the time for digital camera clocks.

The present invention is a digital camera 100 that includes an atomic clock 110. Atomic clocks are the official source of time for the U.S. Department of Defense and provide the standard of time for the United States. These clocks are maintained by the U.S. Navy, and provide time signals in a variety of formats, including radio signals (see for more information on atomic clocks). The present invention is calibrated to the national atomic clock in Colorado, which provides accurate time to 10 billionths of a second.

Figure 1 Rear view of a digital camera with atomic clock

In operation, atomic clock 110 sends a radio signal to the national atomic clock in Colorado at set intervals, such as when the power is turned on. The signal that is returned automatically adjusts atomic clock 110 to the correct time.